| browser.js |
|
0 |
| const-ary-init-iter-close.js |
---
description: Iterator is closed when not exhausted by pattern evaluation (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [Symbol.iterator, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
[...]
4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
result).
[...]
--- |
1990 |
| const-ary-init-iter-get-err-array-prototype.js |
---
description: Abrupt completion returned by GetIterator (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [Symbol.iterator, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
1. Let iteratorRecord be ? GetIterator(value).
GetIterator ( obj [ , hint [ , method ] ] )
[...]
4. Let iterator be ? Call(method, obj).
Call ( F, V [ , argumentsList ] )
[...]
2. If IsCallable(F) is false, throw a TypeError exception.
--- |
1846 |
| const-ary-init-iter-get-err.js |
---
description: Abrupt completion returned by GetIterator (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [Symbol.iterator, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
1. Let iterator be GetIterator(value).
2. ReturnIfAbrupt(iterator).
--- |
1681 |
| const-ary-init-iter-no-close.js |
---
description: Iterator is not closed when exhausted by pattern evaluation (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [Symbol.iterator, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
[...]
4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
result).
[...]
--- |
1992 |
| const-ary-name-iter-val.js |
---
description: SingleNameBinding with normal value iteration (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
[...]
i. Let v be IteratorValue(next).
ii. If v is an abrupt completion, set
iteratorRecord.[[done]] to true.
iii. ReturnIfAbrupt(v).
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
2306 |
| const-ary-ptrn-elem-ary-elem-init.js |
---
description: BindingElement with array binding pattern and initializer is used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2079 |
| const-ary-ptrn-elem-ary-elem-iter.js |
---
description: BindingElement with array binding pattern and initializer is not used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
[...]
e. Else,
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2050 |
| const-ary-ptrn-elem-ary-elision-init.js |
---
description: BindingElement with array binding pattern and initializer is used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2154 |
| const-ary-ptrn-elem-ary-elision-iter.js |
---
description: BindingElement with array binding pattern and initializer is not used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
[...]
e. Else,
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2059 |
| const-ary-ptrn-elem-ary-empty-init.js |
---
description: BindingElement with array binding pattern and initializer is used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2196 |
| const-ary-ptrn-elem-ary-empty-iter.js |
---
description: BindingElement with array binding pattern and initializer is not used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
[...]
e. Else,
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2037 |
| const-ary-ptrn-elem-ary-rest-init.js |
---
description: BindingElement with array binding pattern and initializer is used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2201 |
| const-ary-ptrn-elem-ary-rest-iter.js |
---
description: BindingElement with array binding pattern and initializer is not used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
[...]
e. Else,
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2248 |
| const-ary-ptrn-elem-ary-val-null.js |
---
description: Nested array destructuring with a null value (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPattern Initializeropt
1. If iteratorRecord.[[done]] is false, then
[...]
e. Else
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
1. Let iterator be GetIterator(value).
2. ReturnIfAbrupt(iterator).
--- |
1968 |
| const-ary-ptrn-elem-id-init-exhausted.js |
---
description: Destructuring initializer with an exhausted iterator (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
5. If iteratorRecord.[[done]] is true, let v be undefined.
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
2006 |
| const-ary-ptrn-elem-id-init-fn-name-arrow.js |
---
description: SingleNameBinding does assign name to arrow functions (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
2074 |
| const-ary-ptrn-elem-id-init-fn-name-class.js |
---
description: SingleNameBinding assigns `name` to "anonymous" classes (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
2211 |
| const-ary-ptrn-elem-id-init-fn-name-cover.js |
---
description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
2187 |
| const-ary-ptrn-elem-id-init-fn-name-fn.js |
---
description: SingleNameBinding assigns name to "anonymous" functions (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
2133 |
| const-ary-ptrn-elem-id-init-fn-name-gen.js |
---
description: SingleNameBinding assigns name to "anonymous" generator functions (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
2165 |
| const-ary-ptrn-elem-id-init-hole.js |
---
description: Destructuring initializer with a "hole" (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...] 6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
[...]
7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
--- |
1939 |
| const-ary-ptrn-elem-id-init-skipped.js |
---
description: Destructuring initializer is not evaluated when value is not `undefined` (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
2099 |
| const-ary-ptrn-elem-id-init-throws.js |
---
description: Destructuring initializer returns an abrupt completion (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
--- |
1810 |
| const-ary-ptrn-elem-id-init-undef.js |
---
description: Destructuring initializer with an undefined value (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
1945 |
| const-ary-ptrn-elem-id-init-unresolvable.js |
---
description: Destructuring initializer is an unresolvable reference (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
6.2.3.1 GetValue (V)
1. ReturnIfAbrupt(V).
2. If Type(V) is not Reference, return V.
3. Let base be GetBase(V).
4. If IsUnresolvableReference(V), throw a ReferenceError exception.
--- |
1990 |
| const-ary-ptrn-elem-id-iter-complete.js |
---
description: SingleNameBinding when value iteration completes (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
[...]
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
2093 |
| const-ary-ptrn-elem-id-iter-done.js |
---
description: SingleNameBinding when value iteration was completed previously (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
[...]
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
1846 |
| const-ary-ptrn-elem-id-iter-step-err.js |
---
description: Error forwarding when IteratorStep returns an abrupt completion (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [Symbol.iterator, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
--- |
1936 |
| const-ary-ptrn-elem-id-iter-val-array-prototype.js |
---
description: Array destructuring uses overriden Array.prototype[Symbol.iterator] (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [Symbol.iterator, generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializer_opt
1. Let bindingId be StringValue of BindingIdentifier.
2. Let lhs be ? ResolveBinding(bindingId, environment).
3. If iteratorRecord.[[Done]] is false, then
a. Let next be IteratorStep(iteratorRecord).
b. If next is an abrupt completion, set iteratorRecord.[[Done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[Done]] to true.
e. Else,
i. Let v be IteratorValue(next).
ii. If v is an abrupt completion, set iteratorRecord.[[Done]] to true.
iii. ReturnIfAbrupt(v).
[...]
7. Return InitializeReferencedBinding(lhs, v).
--- |
2604 |
| const-ary-ptrn-elem-id-iter-val-err.js |
---
description: Error forwarding when IteratorValue returns an abrupt completion (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [Symbol.iterator, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
i. Let v be IteratorValue(next).
ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
true.
iii. ReturnIfAbrupt(v).
--- |
2300 |
| const-ary-ptrn-elem-id-iter-val.js |
---
description: SingleNameBinding when value iteration was completed previously (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
[...]
i. Let v be IteratorValue(next).
ii. If v is an abrupt completion, set
iteratorRecord.[[done]] to true.
iii. ReturnIfAbrupt(v).
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
2332 |
| const-ary-ptrn-elem-obj-id-init.js |
---
description: BindingElement with object binding pattern and initializer is used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2097 |
| const-ary-ptrn-elem-obj-id.js |
---
description: BindingElement with object binding pattern and initializer is not used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2119 |
| const-ary-ptrn-elem-obj-prop-id-init.js |
---
description: BindingElement with object binding pattern and initializer is used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2292 |
| const-ary-ptrn-elem-obj-prop-id.js |
---
description: BindingElement with object binding pattern and initializer is not used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2317 |
| const-ary-ptrn-elem-obj-val-null.js |
---
description: Nested object destructuring with a null value (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPattern Initializeropt
1. If iteratorRecord.[[done]] is false, then
[...]
e. Else
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ObjectBindingPattern
1. Let valid be RequireObjectCoercible(value).
2. ReturnIfAbrupt(valid).
--- |
1977 |
| const-ary-ptrn-elem-obj-val-undef.js |
---
description: Nested object destructuring with a value of `undefined` (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPattern Initializeropt
1. If iteratorRecord.[[done]] is false, then
[...]
e. Else
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ObjectBindingPattern
1. Let valid be RequireObjectCoercible(value).
2. ReturnIfAbrupt(valid).
--- |
1984 |
| const-ary-ptrn-elision-exhausted.js |
---
description: Elision accepts exhausted iterator (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elision ]
1. Return the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
as the argument.
12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
Elision : ,
1. If iteratorRecord.[[done]] is false, then
[...]
2. Return NormalCompletion(empty).
--- |
1963 |
| const-ary-ptrn-elision-iter-close.js |
---
description: The iterator is properly consumed by the destructuring pattern (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
--- |
1561 |
| const-ary-ptrn-elision-step-err.js |
---
description: Elision advances iterator and forwards abrupt completions (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elision ]
1. Return the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
as the argument.
12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
Elision : ,
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
--- |
2179 |
| const-ary-ptrn-elision.js |
---
description: Elision advances iterator (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elision ]
1. Return the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
as the argument.
12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
Elision : ,
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
2. Return NormalCompletion(empty).
--- |
2276 |
| const-ary-ptrn-empty.js |
---
description: No iteration occurs for an "empty" array binding pattern (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ ]
1. Return NormalCompletion(empty).
--- |
1724 |
| const-ary-ptrn-rest-ary-elem.js |
---
description: Rest element containing an array BindingElementList pattern (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
[...]
i. Let v be IteratorValue(next).
ii. If v is an abrupt completion, set
iteratorRecord.[[done]] to true.
iii. ReturnIfAbrupt(v).
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
2711 |
| const-ary-ptrn-rest-ary-elision.js |
---
description: Rest element containing an elision (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elision ]
1. Return the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
as the argument.
12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
Elision : ,
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
2. Return NormalCompletion(empty).
--- |
2680 |
| const-ary-ptrn-rest-ary-empty.js |
---
description: Rest element containing an "empty" array pattern (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ ]
1. Return NormalCompletion(empty).
--- |
2111 |
| const-ary-ptrn-rest-ary-rest.js |
---
description: Rest element containing a rest element (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
--- |
2062 |
| const-ary-ptrn-rest-id-direct.js |
---
description: Lone rest element (direct binding) (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
includes: [compareArray.js]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingIdentifier
[...]
2. Let A be ! ArrayCreate(0).
3. Let n be 0.
4. Repeat,
[...]
f. Perform ! CreateDataPropertyOrThrow(A, ! ToString(n), nextValue).
g. Set n to n + 1.
--- |
1850 |
| const-ary-ptrn-rest-id-elision-next-err.js |
---
description: Rest element following elision elements (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elisionopt BindingRestElement ]
1. If Elision is present, then
a. Let status be the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with
iteratorRecord as the argument.
b. ReturnIfAbrupt(status).
2. Return the result of performing IteratorBindingInitialization for
BindingRestElement with iteratorRecord and environment as arguments.
--- |
1992 |
| const-ary-ptrn-rest-id-elision.js |
---
description: Rest element following elision elements (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elisionopt BindingRestElement ]
1. If Elision is present, then
a. Let status be the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with
iteratorRecord as the argument.
b. ReturnIfAbrupt(status).
2. Return the result of performing IteratorBindingInitialization for
BindingRestElement with iteratorRecord and environment as arguments.
--- |
2189 |
| const-ary-ptrn-rest-id-exhausted.js |
---
description: RestElement applied to an exhausted iterator (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [Symbol.iterator, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingIdentifier
1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
environment).
2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
[...]
b. If iteratorRecord.[[done]] is true, then
i. If environment is undefined, return PutValue(lhs, A).
ii. Return InitializeReferencedBinding(lhs, A).
--- |
2028 |
| const-ary-ptrn-rest-id-iter-close.js |
---
description: The iterator is properly consumed by the destructuring pattern (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
--- |
1564 |
| const-ary-ptrn-rest-id-iter-step-err.js |
---
description: Error forwarding when IteratorStep returns an abrupt completion (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingIdentifier
1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
environment).
2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
a. If iteratorRecord.[[done]] is false,
i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
true.
iii. ReturnIfAbrupt(next).
--- |
2220 |
| const-ary-ptrn-rest-id-iter-val-err.js |
---
description: Error forwarding when IteratorValue returns an abrupt completion (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [Symbol.iterator, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingIdentifier
1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
environment).
2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
[...]
c. Let nextValue be IteratorValue(next).
d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
true.
e. ReturnIfAbrupt(nextValue).
--- |
2171 |
| const-ary-ptrn-rest-id.js |
---
description: Lone rest element (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingIdentifier
[...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
[...]
f. Let status be CreateDataProperty(A, ToString (n), nextValue).
[...]
--- |
1910 |
| const-ary-ptrn-rest-init-ary.js |
---
description: Rest element (nested array pattern) does not support initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1825 |
| const-ary-ptrn-rest-init-id.js |
---
description: Rest element (identifier) does not support initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1810 |
| const-ary-ptrn-rest-init-obj.js |
---
description: Rest element (nested object pattern) does not support initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1826 |
| const-ary-ptrn-rest-not-final-ary.js |
---
description: Rest element (array binding pattern) may not be followed by any element (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1840 |
| const-ary-ptrn-rest-not-final-id.js |
---
description: Rest element (identifier) may not be followed by any element (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1826 |
| const-ary-ptrn-rest-not-final-obj.js |
---
description: Rest element (object binding pattern) may not be followed by any element (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1843 |
| const-ary-ptrn-rest-obj-id.js |
---
description: Rest element containing an object binding pattern (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
--- |
1902 |
| const-ary-ptrn-rest-obj-prop-id.js |
---
description: Rest element containing an object binding pattern (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
--- |
2149 |
| const-obj-init-null.js |
---
description: Value specifed for object binding pattern must be object coercible (null) (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
Runtime Semantics: BindingInitialization
ObjectBindingPattern : { }
1. Return NormalCompletion(empty).
--- |
1544 |
| const-obj-init-undefined.js |
---
description: Value specifed for object binding pattern must be object coercible (undefined) (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
Runtime Semantics: BindingInitialization
ObjectBindingPattern : { }
1. Return NormalCompletion(empty).
--- |
1559 |
| const-obj-ptrn-empty.js |
---
description: No property access occurs for an "empty" object binding pattern (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
Runtime Semantics: BindingInitialization
ObjectBindingPattern : { }
1. Return NormalCompletion(empty).
--- |
1750 |
| const-obj-ptrn-id-get-value-err.js |
---
description: Error thrown when accessing the corresponding property of the value object (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. Let v be GetV(value, propertyName).
5. ReturnIfAbrupt(v).
--- |
1783 |
| const-obj-ptrn-id-init-fn-name-arrow.js |
---
description: SingleNameBinding assigns `name` to arrow functions (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
--- |
2019 |
| const-obj-ptrn-id-init-fn-name-class.js |
---
description: SingleNameBinding assigns `name` to "anonymous" classes (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
--- |
2158 |
| const-obj-ptrn-id-init-fn-name-cover.js |
---
description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
--- |
2133 |
| const-obj-ptrn-id-init-fn-name-fn.js |
---
description: SingleNameBinding assigns name to "anonymous" functions (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
--- |
2080 |
| const-obj-ptrn-id-init-fn-name-gen.js |
---
description: SingleNameBinding assigns name to "anonymous" generator functions (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
--- |
2112 |
| const-obj-ptrn-id-init-skipped.js |
---
description: Destructuring initializer is not evaluated when value is not `undefined` (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
[...]
--- |
2005 |
| const-obj-ptrn-id-init-throws.js |
---
description: Error thrown when evaluating the initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
--- |
1802 |
| const-obj-ptrn-id-init-unresolvable.js |
---
description: Destructuring initializer is an unresolvable reference (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
6.2.3.1 GetValue (V)
1. ReturnIfAbrupt(V).
2. If Type(V) is not Reference, return V.
3. Let base be GetBase(V).
4. If IsUnresolvableReference(V), throw a ReferenceError exception.
--- |
1982 |
| const-obj-ptrn-id-trailing-comma.js |
---
description: Trailing comma is allowed following BindingPropertyList (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3 Destructuring Binding Patterns
ObjectBindingPattern[Yield] :
{ }
{ BindingPropertyList[?Yield] }
{ BindingPropertyList[?Yield] , }
--- |
1692 |
| const-obj-ptrn-list-err.js |
---
description: Binding property list evaluation is interrupted by an abrupt completion (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPropertyList : BindingPropertyList , BindingProperty
1. Let status be the result of performing BindingInitialization for
BindingPropertyList using value and environment as arguments.
2. ReturnIfAbrupt(status).
--- |
1860 |
| const-obj-ptrn-prop-ary-init.js |
---
description: Object binding pattern with "nested" array binding pattern using initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
2058 |
| const-obj-ptrn-prop-ary-trailing-comma.js |
---
description: Trailing comma is allowed following BindingPropertyList (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3 Destructuring Binding Patterns
ObjectBindingPattern[Yield] :
{ }
{ BindingPropertyList[?Yield] }
{ BindingPropertyList[?Yield] , }
--- |
1704 |
| const-obj-ptrn-prop-ary-value-null.js |
---
description: Object binding pattern with "nested" array binding pattern taking the `null` value (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1752 |
| const-obj-ptrn-prop-ary.js |
---
description: Object binding pattern with "nested" array binding pattern not using initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1967 |
| const-obj-ptrn-prop-eval-err.js |
---
description: Evaluation of property name returns an abrupt completion (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingProperty : PropertyName : BindingElement
1. Let P be the result of evaluating PropertyName
2. ReturnIfAbrupt(P).
--- |
1675 |
| const-obj-ptrn-prop-id-get-value-err.js |
---
description: Error thrown when accessing the corresponding property of the value object (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
BindingElement : BindingPattern Initializeropt
1. Let v be GetV(value, propertyName).
2. ReturnIfAbrupt(v).
--- |
1853 |
| const-obj-ptrn-prop-id-init-skipped.js |
---
description: Destructuring initializer is not evaluated when value is not `undefined` (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
BindingElement : BindingPattern Initializeropt
[...]
3. If Initializer is present and v is undefined, then
[...]
--- |
2236 |
| const-obj-ptrn-prop-id-init-throws.js |
---
description: Error thrown when evaluating the initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
BindingElement : BindingPattern Initializeropt
[...]
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
--- |
1803 |
| const-obj-ptrn-prop-id-init-unresolvable.js |
---
description: Destructuring initializer is an unresolvable reference (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
BindingElement : BindingPattern Initializeropt
[...]
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
6.2.3.1 GetValue (V)
1. ReturnIfAbrupt(V).
2. If Type(V) is not Reference, return V.
3. Let base be GetBase(V).
4. If IsUnresolvableReference(V), throw a ReferenceError exception.
--- |
1984 |
| const-obj-ptrn-prop-id-init.js |
---
description: Binding as specified via property name, identifier, and initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
1766 |
| const-obj-ptrn-prop-id-trailing-comma.js |
---
description: Trailing comma is allowed following BindingPropertyList (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3 Destructuring Binding Patterns
ObjectBindingPattern[Yield] :
{ }
{ BindingPropertyList[?Yield] }
{ BindingPropertyList[?Yield] , }
--- |
1759 |
| const-obj-ptrn-prop-id.js |
---
description: Binding as specified via property name and identifier (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
1748 |
| const-obj-ptrn-prop-obj-init.js |
---
description: Object binding pattern with "nested" object binding pattern using initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
2086 |
| const-obj-ptrn-prop-obj-value-null.js |
---
description: Object binding pattern with "nested" object binding pattern taking the `null` value (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1766 |
| const-obj-ptrn-prop-obj-value-undef.js |
---
description: Object binding pattern with "nested" object binding pattern taking the `null` value (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1748 |
| const-obj-ptrn-prop-obj.js |
---
description: Object binding pattern with "nested" object binding pattern not using initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1987 |
| const-obj-ptrn-rest-getter.js |
---
description: Getter is called when obj is being deconstructed to a rest Object (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [object-rest, destructuring-binding]
flags: [generated]
includes: [propertyHelper.js]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
--- |
1723 |
| const-obj-ptrn-rest-skip-non-enumerable.js |
---
description: Rest object doesn't contain non-enumerable properties (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [object-rest, destructuring-binding]
flags: [generated]
includes: [propertyHelper.js]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
--- |
1893 |
| const-obj-ptrn-rest-val-obj.js |
---
description: Rest object contains just unextracted data (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [object-rest, destructuring-binding]
flags: [generated]
includes: [propertyHelper.js]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
--- |
1852 |
| let-ary-init-iter-close.js |
---
description: Iterator is closed when not exhausted by pattern evaluation (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [Symbol.iterator, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
[...]
4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
result).
[...]
--- |
1986 |
| let-ary-init-iter-get-err-array-prototype.js |
---
description: Abrupt completion returned by GetIterator (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [Symbol.iterator, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
1. Let iteratorRecord be ? GetIterator(value).
GetIterator ( obj [ , hint [ , method ] ] )
[...]
4. Let iterator be ? Call(method, obj).
Call ( F, V [ , argumentsList ] )
[...]
2. If IsCallable(F) is false, throw a TypeError exception.
--- |
1842 |
| let-ary-init-iter-get-err.js |
---
description: Abrupt completion returned by GetIterator (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [Symbol.iterator, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
1. Let iterator be GetIterator(value).
2. ReturnIfAbrupt(iterator).
--- |
1677 |
| let-ary-init-iter-no-close.js |
---
description: Iterator is not closed when exhausted by pattern evaluation (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [Symbol.iterator, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
[...]
4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
result).
[...]
--- |
1988 |
| let-ary-name-iter-val.js |
---
description: SingleNameBinding with normal value iteration (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
[...]
i. Let v be IteratorValue(next).
ii. If v is an abrupt completion, set
iteratorRecord.[[done]] to true.
iii. ReturnIfAbrupt(v).
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
2302 |
| let-ary-ptrn-elem-ary-elem-init.js |
---
description: BindingElement with array binding pattern and initializer is used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2075 |
| let-ary-ptrn-elem-ary-elem-iter.js |
---
description: BindingElement with array binding pattern and initializer is not used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
[...]
e. Else,
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2046 |
| let-ary-ptrn-elem-ary-elision-init.js |
---
description: BindingElement with array binding pattern and initializer is used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2150 |
| let-ary-ptrn-elem-ary-elision-iter.js |
---
description: BindingElement with array binding pattern and initializer is not used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
[...]
e. Else,
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2055 |
| let-ary-ptrn-elem-ary-empty-init.js |
---
description: BindingElement with array binding pattern and initializer is used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2192 |
| let-ary-ptrn-elem-ary-empty-iter.js |
---
description: BindingElement with array binding pattern and initializer is not used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
[...]
e. Else,
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2033 |
| let-ary-ptrn-elem-ary-rest-init.js |
---
description: BindingElement with array binding pattern and initializer is used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2197 |
| let-ary-ptrn-elem-ary-rest-iter.js |
---
description: BindingElement with array binding pattern and initializer is not used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
[...]
e. Else,
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2244 |
| let-ary-ptrn-elem-ary-val-null.js |
---
description: Nested array destructuring with a null value (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPattern Initializeropt
1. If iteratorRecord.[[done]] is false, then
[...]
e. Else
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
1. Let iterator be GetIterator(value).
2. ReturnIfAbrupt(iterator).
--- |
1964 |
| let-ary-ptrn-elem-id-init-exhausted.js |
---
description: Destructuring initializer with an exhausted iterator (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
5. If iteratorRecord.[[done]] is true, let v be undefined.
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
2002 |
| let-ary-ptrn-elem-id-init-fn-name-arrow.js |
---
description: SingleNameBinding does assign name to arrow functions (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
2070 |
| let-ary-ptrn-elem-id-init-fn-name-class.js |
---
description: SingleNameBinding assigns `name` to "anonymous" classes (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
2207 |
| let-ary-ptrn-elem-id-init-fn-name-cover.js |
---
description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
2183 |
| let-ary-ptrn-elem-id-init-fn-name-fn.js |
---
description: SingleNameBinding assigns name to "anonymous" functions (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
2129 |
| let-ary-ptrn-elem-id-init-fn-name-gen.js |
---
description: SingleNameBinding assigns name to "anonymous" generator functions (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
2161 |
| let-ary-ptrn-elem-id-init-hole.js |
---
description: Destructuring initializer with a "hole" (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...] 6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
[...]
7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
--- |
1935 |
| let-ary-ptrn-elem-id-init-skipped.js |
---
description: Destructuring initializer is not evaluated when value is not `undefined` (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
2095 |
| let-ary-ptrn-elem-id-init-throws.js |
---
description: Destructuring initializer returns an abrupt completion (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
--- |
1806 |
| let-ary-ptrn-elem-id-init-undef.js |
---
description: Destructuring initializer with an undefined value (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
1941 |
| let-ary-ptrn-elem-id-init-unresolvable.js |
---
description: Destructuring initializer is an unresolvable reference (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
6.2.3.1 GetValue (V)
1. ReturnIfAbrupt(V).
2. If Type(V) is not Reference, return V.
3. Let base be GetBase(V).
4. If IsUnresolvableReference(V), throw a ReferenceError exception.
--- |
1986 |
| let-ary-ptrn-elem-id-iter-complete.js |
---
description: SingleNameBinding when value iteration completes (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
[...]
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
2089 |
| let-ary-ptrn-elem-id-iter-done.js |
---
description: SingleNameBinding when value iteration was completed previously (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
[...]
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
1842 |
| let-ary-ptrn-elem-id-iter-step-err.js |
---
description: Error forwarding when IteratorStep returns an abrupt completion (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [Symbol.iterator, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
--- |
1932 |
| let-ary-ptrn-elem-id-iter-val-array-prototype.js |
---
description: Array destructuring uses overriden Array.prototype[Symbol.iterator] (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [Symbol.iterator, generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializer_opt
1. Let bindingId be StringValue of BindingIdentifier.
2. Let lhs be ? ResolveBinding(bindingId, environment).
3. If iteratorRecord.[[Done]] is false, then
a. Let next be IteratorStep(iteratorRecord).
b. If next is an abrupt completion, set iteratorRecord.[[Done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[Done]] to true.
e. Else,
i. Let v be IteratorValue(next).
ii. If v is an abrupt completion, set iteratorRecord.[[Done]] to true.
iii. ReturnIfAbrupt(v).
[...]
7. Return InitializeReferencedBinding(lhs, v).
--- |
2600 |
| let-ary-ptrn-elem-id-iter-val-err.js |
---
description: Error forwarding when IteratorValue returns an abrupt completion (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [Symbol.iterator, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
i. Let v be IteratorValue(next).
ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
true.
iii. ReturnIfAbrupt(v).
--- |
2296 |
| let-ary-ptrn-elem-id-iter-val.js |
---
description: SingleNameBinding when value iteration was completed previously (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
[...]
i. Let v be IteratorValue(next).
ii. If v is an abrupt completion, set
iteratorRecord.[[done]] to true.
iii. ReturnIfAbrupt(v).
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
2328 |
| let-ary-ptrn-elem-obj-id-init.js |
---
description: BindingElement with object binding pattern and initializer is used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2093 |
| let-ary-ptrn-elem-obj-id.js |
---
description: BindingElement with object binding pattern and initializer is not used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2115 |
| let-ary-ptrn-elem-obj-prop-id-init.js |
---
description: BindingElement with object binding pattern and initializer is used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2288 |
| let-ary-ptrn-elem-obj-prop-id.js |
---
description: BindingElement with object binding pattern and initializer is not used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2313 |
| let-ary-ptrn-elem-obj-val-null.js |
---
description: Nested object destructuring with a null value (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPattern Initializeropt
1. If iteratorRecord.[[done]] is false, then
[...]
e. Else
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ObjectBindingPattern
1. Let valid be RequireObjectCoercible(value).
2. ReturnIfAbrupt(valid).
--- |
1973 |
| let-ary-ptrn-elem-obj-val-undef.js |
---
description: Nested object destructuring with a value of `undefined` (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPattern Initializeropt
1. If iteratorRecord.[[done]] is false, then
[...]
e. Else
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ObjectBindingPattern
1. Let valid be RequireObjectCoercible(value).
2. ReturnIfAbrupt(valid).
--- |
1980 |
| let-ary-ptrn-elision-exhausted.js |
---
description: Elision accepts exhausted iterator (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elision ]
1. Return the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
as the argument.
12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
Elision : ,
1. If iteratorRecord.[[done]] is false, then
[...]
2. Return NormalCompletion(empty).
--- |
1959 |
| let-ary-ptrn-elision-iter-close.js |
---
description: The iterator is properly consumed by the destructuring pattern (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
--- |
1557 |
| let-ary-ptrn-elision-step-err.js |
---
description: Elision advances iterator and forwards abrupt completions (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elision ]
1. Return the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
as the argument.
12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
Elision : ,
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
--- |
2175 |
| let-ary-ptrn-elision.js |
---
description: Elision advances iterator (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elision ]
1. Return the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
as the argument.
12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
Elision : ,
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
2. Return NormalCompletion(empty).
--- |
2272 |
| let-ary-ptrn-empty.js |
---
description: No iteration occurs for an "empty" array binding pattern (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ ]
1. Return NormalCompletion(empty).
--- |
1720 |
| let-ary-ptrn-rest-ary-elem.js |
---
description: Rest element containing an array BindingElementList pattern (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
[...]
i. Let v be IteratorValue(next).
ii. If v is an abrupt completion, set
iteratorRecord.[[done]] to true.
iii. ReturnIfAbrupt(v).
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
2707 |
| let-ary-ptrn-rest-ary-elision.js |
---
description: Rest element containing an elision (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elision ]
1. Return the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
as the argument.
12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
Elision : ,
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
2. Return NormalCompletion(empty).
--- |
2676 |
| let-ary-ptrn-rest-ary-empty.js |
---
description: Rest element containing an "empty" array pattern (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ ]
1. Return NormalCompletion(empty).
--- |
2107 |
| let-ary-ptrn-rest-ary-rest.js |
---
description: Rest element containing a rest element (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
--- |
2058 |
| let-ary-ptrn-rest-id-direct.js |
---
description: Lone rest element (direct binding) (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
includes: [compareArray.js]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingIdentifier
[...]
2. Let A be ! ArrayCreate(0).
3. Let n be 0.
4. Repeat,
[...]
f. Perform ! CreateDataPropertyOrThrow(A, ! ToString(n), nextValue).
g. Set n to n + 1.
--- |
1846 |
| let-ary-ptrn-rest-id-elision-next-err.js |
---
description: Rest element following elision elements (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elisionopt BindingRestElement ]
1. If Elision is present, then
a. Let status be the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with
iteratorRecord as the argument.
b. ReturnIfAbrupt(status).
2. Return the result of performing IteratorBindingInitialization for
BindingRestElement with iteratorRecord and environment as arguments.
--- |
1988 |
| let-ary-ptrn-rest-id-elision.js |
---
description: Rest element following elision elements (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elisionopt BindingRestElement ]
1. If Elision is present, then
a. Let status be the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with
iteratorRecord as the argument.
b. ReturnIfAbrupt(status).
2. Return the result of performing IteratorBindingInitialization for
BindingRestElement with iteratorRecord and environment as arguments.
--- |
2185 |
| let-ary-ptrn-rest-id-exhausted.js |
---
description: RestElement applied to an exhausted iterator (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [Symbol.iterator, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingIdentifier
1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
environment).
2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
[...]
b. If iteratorRecord.[[done]] is true, then
i. If environment is undefined, return PutValue(lhs, A).
ii. Return InitializeReferencedBinding(lhs, A).
--- |
2024 |
| let-ary-ptrn-rest-id-iter-close.js |
---
description: The iterator is properly consumed by the destructuring pattern (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
--- |
1560 |
| let-ary-ptrn-rest-id-iter-step-err.js |
---
description: Error forwarding when IteratorStep returns an abrupt completion (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingIdentifier
1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
environment).
2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
a. If iteratorRecord.[[done]] is false,
i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
true.
iii. ReturnIfAbrupt(next).
--- |
2216 |
| let-ary-ptrn-rest-id-iter-val-err.js |
---
description: Error forwarding when IteratorValue returns an abrupt completion (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [Symbol.iterator, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingIdentifier
1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
environment).
2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
[...]
c. Let nextValue be IteratorValue(next).
d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
true.
e. ReturnIfAbrupt(nextValue).
--- |
2167 |
| let-ary-ptrn-rest-id.js |
---
description: Lone rest element (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingIdentifier
[...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
[...]
f. Let status be CreateDataProperty(A, ToString (n), nextValue).
[...]
--- |
1906 |
| let-ary-ptrn-rest-init-ary.js |
---
description: Rest element (nested array pattern) does not support initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1821 |
| let-ary-ptrn-rest-init-id.js |
---
description: Rest element (identifier) does not support initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1806 |
| let-ary-ptrn-rest-init-obj.js |
---
description: Rest element (nested object pattern) does not support initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1822 |
| let-ary-ptrn-rest-not-final-ary.js |
---
description: Rest element (array binding pattern) may not be followed by any element (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1836 |
| let-ary-ptrn-rest-not-final-id.js |
---
description: Rest element (identifier) may not be followed by any element (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1822 |
| let-ary-ptrn-rest-not-final-obj.js |
---
description: Rest element (object binding pattern) may not be followed by any element (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1839 |
| let-ary-ptrn-rest-obj-id.js |
---
description: Rest element containing an object binding pattern (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
--- |
1898 |
| let-ary-ptrn-rest-obj-prop-id.js |
---
description: Rest element containing an object binding pattern (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
--- |
2145 |
| let-obj-init-null.js |
---
description: Value specifed for object binding pattern must be object coercible (null) (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
Runtime Semantics: BindingInitialization
ObjectBindingPattern : { }
1. Return NormalCompletion(empty).
--- |
1540 |
| let-obj-init-undefined.js |
---
description: Value specifed for object binding pattern must be object coercible (undefined) (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
Runtime Semantics: BindingInitialization
ObjectBindingPattern : { }
1. Return NormalCompletion(empty).
--- |
1555 |
| let-obj-ptrn-empty.js |
---
description: No property access occurs for an "empty" object binding pattern (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
Runtime Semantics: BindingInitialization
ObjectBindingPattern : { }
1. Return NormalCompletion(empty).
--- |
1746 |
| let-obj-ptrn-id-get-value-err.js |
---
description: Error thrown when accessing the corresponding property of the value object (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. Let v be GetV(value, propertyName).
5. ReturnIfAbrupt(v).
--- |
1779 |
| let-obj-ptrn-id-init-fn-name-arrow.js |
---
description: SingleNameBinding assigns `name` to arrow functions (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
--- |
2015 |
| let-obj-ptrn-id-init-fn-name-class.js |
---
description: SingleNameBinding assigns `name` to "anonymous" classes (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
--- |
2154 |
| let-obj-ptrn-id-init-fn-name-cover.js |
---
description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
--- |
2129 |
| let-obj-ptrn-id-init-fn-name-fn.js |
---
description: SingleNameBinding assigns name to "anonymous" functions (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
--- |
2076 |
| let-obj-ptrn-id-init-fn-name-gen.js |
---
description: SingleNameBinding assigns name to "anonymous" generator functions (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
--- |
2108 |
| let-obj-ptrn-id-init-skipped.js |
---
description: Destructuring initializer is not evaluated when value is not `undefined` (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
[...]
--- |
2001 |
| let-obj-ptrn-id-init-throws.js |
---
description: Error thrown when evaluating the initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
--- |
1798 |
| let-obj-ptrn-id-init-unresolvable.js |
---
description: Destructuring initializer is an unresolvable reference (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
6.2.3.1 GetValue (V)
1. ReturnIfAbrupt(V).
2. If Type(V) is not Reference, return V.
3. Let base be GetBase(V).
4. If IsUnresolvableReference(V), throw a ReferenceError exception.
--- |
1978 |
| let-obj-ptrn-id-trailing-comma.js |
---
description: Trailing comma is allowed following BindingPropertyList (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3 Destructuring Binding Patterns
ObjectBindingPattern[Yield] :
{ }
{ BindingPropertyList[?Yield] }
{ BindingPropertyList[?Yield] , }
--- |
1688 |
| let-obj-ptrn-list-err.js |
---
description: Binding property list evaluation is interrupted by an abrupt completion (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPropertyList : BindingPropertyList , BindingProperty
1. Let status be the result of performing BindingInitialization for
BindingPropertyList using value and environment as arguments.
2. ReturnIfAbrupt(status).
--- |
1856 |
| let-obj-ptrn-prop-ary-init.js |
---
description: Object binding pattern with "nested" array binding pattern using initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
2054 |
| let-obj-ptrn-prop-ary-trailing-comma.js |
---
description: Trailing comma is allowed following BindingPropertyList (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3 Destructuring Binding Patterns
ObjectBindingPattern[Yield] :
{ }
{ BindingPropertyList[?Yield] }
{ BindingPropertyList[?Yield] , }
--- |
1700 |
| let-obj-ptrn-prop-ary-value-null.js |
---
description: Object binding pattern with "nested" array binding pattern taking the `null` value (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1748 |
| let-obj-ptrn-prop-ary.js |
---
description: Object binding pattern with "nested" array binding pattern not using initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1963 |
| let-obj-ptrn-prop-eval-err.js |
---
description: Evaluation of property name returns an abrupt completion (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingProperty : PropertyName : BindingElement
1. Let P be the result of evaluating PropertyName
2. ReturnIfAbrupt(P).
--- |
1671 |
| let-obj-ptrn-prop-id-get-value-err.js |
---
description: Error thrown when accessing the corresponding property of the value object (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
BindingElement : BindingPattern Initializeropt
1. Let v be GetV(value, propertyName).
2. ReturnIfAbrupt(v).
--- |
1849 |
| let-obj-ptrn-prop-id-init-skipped.js |
---
description: Destructuring initializer is not evaluated when value is not `undefined` (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
BindingElement : BindingPattern Initializeropt
[...]
3. If Initializer is present and v is undefined, then
[...]
--- |
2232 |
| let-obj-ptrn-prop-id-init-throws.js |
---
description: Error thrown when evaluating the initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
BindingElement : BindingPattern Initializeropt
[...]
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
--- |
1799 |
| let-obj-ptrn-prop-id-init-unresolvable.js |
---
description: Destructuring initializer is an unresolvable reference (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
BindingElement : BindingPattern Initializeropt
[...]
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
6.2.3.1 GetValue (V)
1. ReturnIfAbrupt(V).
2. If Type(V) is not Reference, return V.
3. Let base be GetBase(V).
4. If IsUnresolvableReference(V), throw a ReferenceError exception.
--- |
1980 |
| let-obj-ptrn-prop-id-init.js |
---
description: Binding as specified via property name, identifier, and initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
1762 |
| let-obj-ptrn-prop-id-trailing-comma.js |
---
description: Trailing comma is allowed following BindingPropertyList (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3 Destructuring Binding Patterns
ObjectBindingPattern[Yield] :
{ }
{ BindingPropertyList[?Yield] }
{ BindingPropertyList[?Yield] , }
--- |
1755 |
| let-obj-ptrn-prop-id.js |
---
description: Binding as specified via property name and identifier (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
1744 |
| let-obj-ptrn-prop-obj-init.js |
---
description: Object binding pattern with "nested" object binding pattern using initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
2082 |
| let-obj-ptrn-prop-obj-value-null.js |
---
description: Object binding pattern with "nested" object binding pattern taking the `null` value (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1762 |
| let-obj-ptrn-prop-obj-value-undef.js |
---
description: Object binding pattern with "nested" object binding pattern taking the `null` value (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1744 |
| let-obj-ptrn-prop-obj.js |
---
description: Object binding pattern with "nested" object binding pattern not using initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1983 |
| let-obj-ptrn-rest-getter.js |
---
description: Getter is called when obj is being deconstructed to a rest Object (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [object-rest, destructuring-binding]
flags: [generated]
includes: [propertyHelper.js]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
--- |
1719 |
| let-obj-ptrn-rest-skip-non-enumerable.js |
---
description: Rest object doesn't contain non-enumerable properties (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [object-rest, destructuring-binding]
flags: [generated]
includes: [propertyHelper.js]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
--- |
1889 |
| let-obj-ptrn-rest-val-obj.js |
---
description: Rest object contains just unextracted data (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [object-rest, destructuring-binding]
flags: [generated]
includes: [propertyHelper.js]
info: |
IterationStatement :
for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
[...]
7. Let forDcl be the result of evaluating LexicalDeclaration.
[...]
LexicalDeclaration : LetOrConst BindingList ;
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return NormalCompletion(empty).
BindingList : BindingList , LexicalBinding
1. Let next be the result of evaluating BindingList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating LexicalBinding.
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context’s LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the arguments.
--- |
1848 |
| shell.js |
|
0 |
| var-ary-init-iter-close.js |
---
description: Iterator is closed when not exhausted by pattern evaluation (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [Symbol.iterator, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
[...]
4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
result).
[...]
--- |
1838 |
| var-ary-init-iter-get-err-array-prototype.js |
---
description: Abrupt completion returned by GetIterator (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [Symbol.iterator, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
1. Let iteratorRecord be ? GetIterator(value).
GetIterator ( obj [ , hint [ , method ] ] )
[...]
4. Let iterator be ? Call(method, obj).
Call ( F, V [ , argumentsList ] )
[...]
2. If IsCallable(F) is false, throw a TypeError exception.
--- |
1708 |
| var-ary-init-iter-get-err.js |
---
description: Abrupt completion returned by GetIterator (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [Symbol.iterator, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
1. Let iterator be GetIterator(value).
2. ReturnIfAbrupt(iterator).
--- |
1543 |
| var-ary-init-iter-no-close.js |
---
description: Iterator is not closed when exhausted by pattern evaluation (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [Symbol.iterator, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
[...]
4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
result).
[...]
--- |
1840 |
| var-ary-name-iter-val.js |
---
description: SingleNameBinding with normal value iteration (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
[...]
i. Let v be IteratorValue(next).
ii. If v is an abrupt completion, set
iteratorRecord.[[done]] to true.
iii. ReturnIfAbrupt(v).
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
2154 |
| var-ary-ptrn-elem-ary-elem-init.js |
---
description: BindingElement with array binding pattern and initializer is used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1927 |
| var-ary-ptrn-elem-ary-elem-iter.js |
---
description: BindingElement with array binding pattern and initializer is not used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
[...]
e. Else,
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1898 |
| var-ary-ptrn-elem-ary-elision-init.js |
---
description: BindingElement with array binding pattern and initializer is used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2002 |
| var-ary-ptrn-elem-ary-elision-iter.js |
---
description: BindingElement with array binding pattern and initializer is not used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
[...]
e. Else,
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1907 |
| var-ary-ptrn-elem-ary-empty-init.js |
---
description: BindingElement with array binding pattern and initializer is used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2044 |
| var-ary-ptrn-elem-ary-empty-iter.js |
---
description: BindingElement with array binding pattern and initializer is not used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
[...]
e. Else,
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1885 |
| var-ary-ptrn-elem-ary-rest-init.js |
---
description: BindingElement with array binding pattern and initializer is used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2049 |
| var-ary-ptrn-elem-ary-rest-iter.js |
---
description: BindingElement with array binding pattern and initializer is not used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
[...]
e. Else,
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2096 |
| var-ary-ptrn-elem-ary-val-null.js |
---
description: Nested array destructuring with a null value (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPattern Initializeropt
1. If iteratorRecord.[[done]] is false, then
[...]
e. Else
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
1. Let iterator be GetIterator(value).
2. ReturnIfAbrupt(iterator).
--- |
1830 |
| var-ary-ptrn-elem-id-init-exhausted.js |
---
description: Destructuring initializer with an exhausted iterator (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
5. If iteratorRecord.[[done]] is true, let v be undefined.
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
1854 |
| var-ary-ptrn-elem-id-init-fn-name-arrow.js |
---
description: SingleNameBinding does assign name to arrow functions (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
1922 |
| var-ary-ptrn-elem-id-init-fn-name-class.js |
---
description: SingleNameBinding assigns `name` to "anonymous" classes (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
2059 |
| var-ary-ptrn-elem-id-init-fn-name-cover.js |
---
description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
2035 |
| var-ary-ptrn-elem-id-init-fn-name-fn.js |
---
description: SingleNameBinding assigns name to "anonymous" functions (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
1981 |
| var-ary-ptrn-elem-id-init-fn-name-gen.js |
---
description: SingleNameBinding assigns name to "anonymous" generator functions (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
2013 |
| var-ary-ptrn-elem-id-init-hole.js |
---
description: Destructuring initializer with a "hole" (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...] 6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
[...]
7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
--- |
1787 |
| var-ary-ptrn-elem-id-init-skipped.js |
---
description: Destructuring initializer is not evaluated when value is not `undefined` (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
1947 |
| var-ary-ptrn-elem-id-init-throws.js |
---
description: Destructuring initializer returns an abrupt completion (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
--- |
1672 |
| var-ary-ptrn-elem-id-init-undef.js |
---
description: Destructuring initializer with an undefined value (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
1793 |
| var-ary-ptrn-elem-id-init-unresolvable.js |
---
description: Destructuring initializer is an unresolvable reference (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
6.2.3.1 GetValue (V)
1. ReturnIfAbrupt(V).
2. If Type(V) is not Reference, return V.
3. Let base be GetBase(V).
4. If IsUnresolvableReference(V), throw a ReferenceError exception.
--- |
1852 |
| var-ary-ptrn-elem-id-iter-complete.js |
---
description: SingleNameBinding when value iteration completes (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
[...]
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
1941 |
| var-ary-ptrn-elem-id-iter-done.js |
---
description: SingleNameBinding when value iteration was completed previously (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
[...]
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
1694 |
| var-ary-ptrn-elem-id-iter-step-err.js |
---
description: Error forwarding when IteratorStep returns an abrupt completion (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [Symbol.iterator, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
--- |
1798 |
| var-ary-ptrn-elem-id-iter-val-array-prototype.js |
---
description: Array destructuring uses overriden Array.prototype[Symbol.iterator] (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [Symbol.iterator, generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializer_opt
1. Let bindingId be StringValue of BindingIdentifier.
2. Let lhs be ? ResolveBinding(bindingId, environment).
3. If iteratorRecord.[[Done]] is false, then
a. Let next be IteratorStep(iteratorRecord).
b. If next is an abrupt completion, set iteratorRecord.[[Done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[Done]] to true.
e. Else,
i. Let v be IteratorValue(next).
ii. If v is an abrupt completion, set iteratorRecord.[[Done]] to true.
iii. ReturnIfAbrupt(v).
[...]
7. Return InitializeReferencedBinding(lhs, v).
--- |
2452 |
| var-ary-ptrn-elem-id-iter-val-err.js |
---
description: Error forwarding when IteratorValue returns an abrupt completion (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [Symbol.iterator, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
i. Let v be IteratorValue(next).
ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
true.
iii. ReturnIfAbrupt(v).
--- |
2162 |
| var-ary-ptrn-elem-id-iter-val.js |
---
description: SingleNameBinding when value iteration was completed previously (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
[...]
i. Let v be IteratorValue(next).
ii. If v is an abrupt completion, set
iteratorRecord.[[done]] to true.
iii. ReturnIfAbrupt(v).
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
2180 |
| var-ary-ptrn-elem-obj-id-init.js |
---
description: BindingElement with object binding pattern and initializer is used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1945 |
| var-ary-ptrn-elem-obj-id.js |
---
description: BindingElement with object binding pattern and initializer is not used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1967 |
| var-ary-ptrn-elem-obj-prop-id-init.js |
---
description: BindingElement with object binding pattern and initializer is used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2140 |
| var-ary-ptrn-elem-obj-prop-id.js |
---
description: BindingElement with object binding pattern and initializer is not used (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
2165 |
| var-ary-ptrn-elem-obj-val-null.js |
---
description: Nested object destructuring with a null value (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPattern Initializeropt
1. If iteratorRecord.[[done]] is false, then
[...]
e. Else
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ObjectBindingPattern
1. Let valid be RequireObjectCoercible(value).
2. ReturnIfAbrupt(valid).
--- |
1839 |
| var-ary-ptrn-elem-obj-val-undef.js |
---
description: Nested object destructuring with a value of `undefined` (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPattern Initializeropt
1. If iteratorRecord.[[done]] is false, then
[...]
e. Else
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ObjectBindingPattern
1. Let valid be RequireObjectCoercible(value).
2. ReturnIfAbrupt(valid).
--- |
1846 |
| var-ary-ptrn-elision-exhausted.js |
---
description: Elision accepts exhausted iterator (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elision ]
1. Return the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
as the argument.
12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
Elision : ,
1. If iteratorRecord.[[done]] is false, then
[...]
2. Return NormalCompletion(empty).
--- |
1811 |
| var-ary-ptrn-elision-iter-close.js |
---
description: The iterator is properly consumed by the destructuring pattern (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
--- |
1410 |
| var-ary-ptrn-elision-step-err.js |
---
description: Elision advances iterator and forwards abrupt completions (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elision ]
1. Return the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
as the argument.
12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
Elision : ,
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
--- |
2041 |
| var-ary-ptrn-elision.js |
---
description: Elision advances iterator (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elision ]
1. Return the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
as the argument.
12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
Elision : ,
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
2. Return NormalCompletion(empty).
--- |
2124 |
| var-ary-ptrn-empty.js |
---
description: No iteration occurs for an "empty" array binding pattern (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ ]
1. Return NormalCompletion(empty).
--- |
1572 |
| var-ary-ptrn-rest-ary-elem.js |
---
description: Rest element containing an array BindingElementList pattern (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
[...]
i. Let v be IteratorValue(next).
ii. If v is an abrupt completion, set
iteratorRecord.[[done]] to true.
iii. ReturnIfAbrupt(v).
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
2559 |
| var-ary-ptrn-rest-ary-elision.js |
---
description: Rest element containing an elision (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elision ]
1. Return the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
as the argument.
12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
Elision : ,
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
2. Return NormalCompletion(empty).
--- |
2528 |
| var-ary-ptrn-rest-ary-empty.js |
---
description: Rest element containing an "empty" array pattern (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ ]
1. Return NormalCompletion(empty).
--- |
1959 |
| var-ary-ptrn-rest-ary-rest.js |
---
description: Rest element containing a rest element (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
--- |
1910 |
| var-ary-ptrn-rest-id-direct.js |
---
description: Lone rest element (direct binding) (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
includes: [compareArray.js]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingIdentifier
[...]
2. Let A be ! ArrayCreate(0).
3. Let n be 0.
4. Repeat,
[...]
f. Perform ! CreateDataPropertyOrThrow(A, ! ToString(n), nextValue).
g. Set n to n + 1.
--- |
1698 |
| var-ary-ptrn-rest-id-elision-next-err.js |
---
description: Rest element following elision elements (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elisionopt BindingRestElement ]
1. If Elision is present, then
a. Let status be the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with
iteratorRecord as the argument.
b. ReturnIfAbrupt(status).
2. Return the result of performing IteratorBindingInitialization for
BindingRestElement with iteratorRecord and environment as arguments.
--- |
1854 |
| var-ary-ptrn-rest-id-elision.js |
---
description: Rest element following elision elements (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elisionopt BindingRestElement ]
1. If Elision is present, then
a. Let status be the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with
iteratorRecord as the argument.
b. ReturnIfAbrupt(status).
2. Return the result of performing IteratorBindingInitialization for
BindingRestElement with iteratorRecord and environment as arguments.
--- |
2037 |
| var-ary-ptrn-rest-id-exhausted.js |
---
description: RestElement applied to an exhausted iterator (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [Symbol.iterator, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingIdentifier
1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
environment).
2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
[...]
b. If iteratorRecord.[[done]] is true, then
i. If environment is undefined, return PutValue(lhs, A).
ii. Return InitializeReferencedBinding(lhs, A).
--- |
1876 |
| var-ary-ptrn-rest-id-iter-close.js |
---
description: The iterator is properly consumed by the destructuring pattern (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
--- |
1413 |
| var-ary-ptrn-rest-id-iter-step-err.js |
---
description: Error forwarding when IteratorStep returns an abrupt completion (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingIdentifier
1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
environment).
2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
a. If iteratorRecord.[[done]] is false,
i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
true.
iii. ReturnIfAbrupt(next).
--- |
2082 |
| var-ary-ptrn-rest-id-iter-val-err.js |
---
description: Error forwarding when IteratorValue returns an abrupt completion (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [Symbol.iterator, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingIdentifier
1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
environment).
2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
[...]
c. Let nextValue be IteratorValue(next).
d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
true.
e. ReturnIfAbrupt(nextValue).
--- |
2033 |
| var-ary-ptrn-rest-id.js |
---
description: Lone rest element (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingIdentifier
[...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
[...]
f. Let status be CreateDataProperty(A, ToString (n), nextValue).
[...]
--- |
1758 |
| var-ary-ptrn-rest-init-ary.js |
---
description: Rest element (nested array pattern) does not support initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1673 |
| var-ary-ptrn-rest-init-id.js |
---
description: Rest element (identifier) does not support initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1658 |
| var-ary-ptrn-rest-init-obj.js |
---
description: Rest element (nested object pattern) does not support initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1674 |
| var-ary-ptrn-rest-not-final-ary.js |
---
description: Rest element (array binding pattern) may not be followed by any element (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1688 |
| var-ary-ptrn-rest-not-final-id.js |
---
description: Rest element (identifier) may not be followed by any element (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1674 |
| var-ary-ptrn-rest-not-final-obj.js |
---
description: Rest element (object binding pattern) may not be followed by any element (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1691 |
| var-ary-ptrn-rest-obj-id.js |
---
description: Rest element containing an object binding pattern (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
--- |
1750 |
| var-ary-ptrn-rest-obj-prop-id.js |
---
description: Rest element containing an object binding pattern (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
--- |
1997 |
| var-obj-init-null.js |
---
description: Value specifed for object binding pattern must be object coercible (null) (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
Runtime Semantics: BindingInitialization
ObjectBindingPattern : { }
1. Return NormalCompletion(empty).
--- |
1406 |
| var-obj-init-undefined.js |
---
description: Value specifed for object binding pattern must be object coercible (undefined) (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
Runtime Semantics: BindingInitialization
ObjectBindingPattern : { }
1. Return NormalCompletion(empty).
--- |
1421 |
| var-obj-ptrn-empty.js |
---
description: No property access occurs for an "empty" object binding pattern (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
Runtime Semantics: BindingInitialization
ObjectBindingPattern : { }
1. Return NormalCompletion(empty).
--- |
1598 |
| var-obj-ptrn-id-get-value-err.js |
---
description: Error thrown when accessing the corresponding property of the value object (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. Let v be GetV(value, propertyName).
5. ReturnIfAbrupt(v).
--- |
1645 |
| var-obj-ptrn-id-init-fn-name-arrow.js |
---
description: SingleNameBinding assigns `name` to arrow functions (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
--- |
1867 |
| var-obj-ptrn-id-init-fn-name-class.js |
---
description: SingleNameBinding assigns `name` to "anonymous" classes (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
--- |
2006 |
| var-obj-ptrn-id-init-fn-name-cover.js |
---
description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
--- |
1981 |
| var-obj-ptrn-id-init-fn-name-fn.js |
---
description: SingleNameBinding assigns name to "anonymous" functions (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
--- |
1928 |
| var-obj-ptrn-id-init-fn-name-gen.js |
---
description: SingleNameBinding assigns name to "anonymous" generator functions (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
--- |
1960 |
| var-obj-ptrn-id-init-skipped.js |
---
description: Destructuring initializer is not evaluated when value is not `undefined` (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
[...]
--- |
1853 |
| var-obj-ptrn-id-init-throws.js |
---
description: Error thrown when evaluating the initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
--- |
1664 |
| var-obj-ptrn-id-init-unresolvable.js |
---
description: Destructuring initializer is an unresolvable reference (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
6.2.3.1 GetValue (V)
1. ReturnIfAbrupt(V).
2. If Type(V) is not Reference, return V.
3. Let base be GetBase(V).
4. If IsUnresolvableReference(V), throw a ReferenceError exception.
--- |
1844 |
| var-obj-ptrn-id-trailing-comma.js |
---
description: Trailing comma is allowed following BindingPropertyList (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3 Destructuring Binding Patterns
ObjectBindingPattern[Yield] :
{ }
{ BindingPropertyList[?Yield] }
{ BindingPropertyList[?Yield] , }
--- |
1540 |
| var-obj-ptrn-list-err.js |
---
description: Binding property list evaluation is interrupted by an abrupt completion (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPropertyList : BindingPropertyList , BindingProperty
1. Let status be the result of performing BindingInitialization for
BindingPropertyList using value and environment as arguments.
2. ReturnIfAbrupt(status).
--- |
1722 |
| var-obj-ptrn-prop-ary-init.js |
---
description: Object binding pattern with "nested" array binding pattern using initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1906 |
| var-obj-ptrn-prop-ary-trailing-comma.js |
---
description: Trailing comma is allowed following BindingPropertyList (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3 Destructuring Binding Patterns
ObjectBindingPattern[Yield] :
{ }
{ BindingPropertyList[?Yield] }
{ BindingPropertyList[?Yield] , }
--- |
1552 |
| var-obj-ptrn-prop-ary-value-null.js |
---
description: Object binding pattern with "nested" array binding pattern taking the `null` value (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1614 |
| var-obj-ptrn-prop-ary.js |
---
description: Object binding pattern with "nested" array binding pattern not using initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1815 |
| var-obj-ptrn-prop-eval-err.js |
---
description: Evaluation of property name returns an abrupt completion (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingProperty : PropertyName : BindingElement
1. Let P be the result of evaluating PropertyName
2. ReturnIfAbrupt(P).
--- |
1537 |
| var-obj-ptrn-prop-id-get-value-err.js |
---
description: Error thrown when accessing the corresponding property of the value object (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
BindingElement : BindingPattern Initializeropt
1. Let v be GetV(value, propertyName).
2. ReturnIfAbrupt(v).
--- |
1715 |
| var-obj-ptrn-prop-id-init-skipped.js |
---
description: Destructuring initializer is not evaluated when value is not `undefined` (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
BindingElement : BindingPattern Initializeropt
[...]
3. If Initializer is present and v is undefined, then
[...]
--- |
2084 |
| var-obj-ptrn-prop-id-init-throws.js |
---
description: Error thrown when evaluating the initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
BindingElement : BindingPattern Initializeropt
[...]
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
--- |
1665 |
| var-obj-ptrn-prop-id-init-unresolvable.js |
---
description: Destructuring initializer is an unresolvable reference (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
BindingElement : BindingPattern Initializeropt
[...]
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
6.2.3.1 GetValue (V)
1. ReturnIfAbrupt(V).
2. If Type(V) is not Reference, return V.
3. Let base be GetBase(V).
4. If IsUnresolvableReference(V), throw a ReferenceError exception.
--- |
1846 |
| var-obj-ptrn-prop-id-init.js |
---
description: Binding as specified via property name, identifier, and initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
1614 |
| var-obj-ptrn-prop-id-trailing-comma.js |
---
description: Trailing comma is allowed following BindingPropertyList (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3 Destructuring Binding Patterns
ObjectBindingPattern[Yield] :
{ }
{ BindingPropertyList[?Yield] }
{ BindingPropertyList[?Yield] , }
--- |
1607 |
| var-obj-ptrn-prop-id.js |
---
description: Binding as specified via property name and identifier (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
1596 |
| var-obj-ptrn-prop-obj-init.js |
---
description: Object binding pattern with "nested" object binding pattern using initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1934 |
| var-obj-ptrn-prop-obj-value-null.js |
---
description: Object binding pattern with "nested" object binding pattern taking the `null` value (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1628 |
| var-obj-ptrn-prop-obj-value-undef.js |
---
description: Object binding pattern with "nested" object binding pattern taking the `null` value (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1610 |
| var-obj-ptrn-prop-obj.js |
---
description: Object binding pattern with "nested" object binding pattern not using initializer (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1835 |
| var-obj-ptrn-rest-getter.js |
---
description: Getter is called when obj is being deconstructed to a rest Object (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [object-rest, destructuring-binding]
flags: [generated]
includes: [propertyHelper.js]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
--- |
1571 |
| var-obj-ptrn-rest-skip-non-enumerable.js |
---
description: Rest object doesn't contain non-enumerable properties (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [object-rest, destructuring-binding]
flags: [generated]
includes: [propertyHelper.js]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
--- |
1741 |
| var-obj-ptrn-rest-val-obj.js |
---
description: Rest object contains just unextracted data (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
features: [object-rest, destructuring-binding]
flags: [generated]
includes: [propertyHelper.js]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
--- |
1700 |