| 11.1.4-0.js |
---
es5id: 11.1.4-0
description: >
elements elided at the end of an array do not contribute to its
length
--- |
340 |
| 11.1.4_4-5-1.js |
---
info: |
Refer 11.1.4;
The production
ElementList : Elisionopt AssignmentExpression
5.Call the [[DefineOwnProperty]] internal method of array with arguments ToString(firstIndex), the Property Descriptor { [[Value]]: initValue, [[Writable]]: true
, [[Enumerable]]: true, [[Configurable]]: true}, and false.
es5id: 11.1.4_4-5-1
description: >
Initialize array using ElementList (Elisionopt
AssignmentExpression) when index property (read-only) exists in
Array.prototype (step 5)
--- |
990 |
| 11.1.4_5-6-1.js |
---
info: |
Refer 11.1.4;
The production
ElementList : ElementList , Elisionopt AssignmentExpression
6.Call the [[DefineOwnProperty]] internal method of array with arguments ToString(ToUint32((pad+len)) and the Property Descriptor { [[Value]]: initValue
, [[Writable]]: true, [[Enumerable]]: true, [[Configurable]]: true}, and false.
es5id: 11.1.4_5-6-1
description: >
Initialize array using ElementList (ElementList , Elisionopt
AssignmentExpression) when index property (read-only) exists in
Array.prototype (step 6)
--- |
1032 |
| browser.js |
|
0 |
| S11.1.4_A1.1.js |
---
info: "Evaluate the production ArrayLiteral: [ ]"
es5id: 11.1.4_A1.1
description: >
Checking various properties of the array defined with expression
"var array = []"
--- |
959 |
| S11.1.4_A1.2.js |
---
info: "Evaluate the production ArrayLiteral: [ Elision ]"
es5id: 11.1.4_A1.2
description: >
Checking various properties the array defined with "var array =
[,,,,,]"
--- |
983 |
| S11.1.4_A1.3.js |
---
info: "Evaluate the production ArrayLiteral: [ AssignmentExpression ]"
es5id: 11.1.4_A1.3
description: >
Checking various properteis and contents of the array defined with
"var array = [1,2,3,4,5]"
--- |
1691 |
| S11.1.4_A1.4.js |
---
info: "Evaluate the production ArrayLiteral: [ Elision, AssignmentExpression ]"
es5id: 11.1.4_A1.4
description: >
Checking various properteis and content of the array defined with
"var array = [,,,1,2]"
--- |
1714 |
| S11.1.4_A1.5.js |
---
info: "Evaluate the production ArrayLiteral: [ AssignmentExpression, Elision ]"
es5id: 11.1.4_A1.5
description: >
Checking various properteis and contents of the array defined with
"var array = [4,5,,,,]"
--- |
1726 |
| S11.1.4_A1.6.js |
---
info: |
Evaluate the production ArrayLiteral: [ Elision, AssignmentExpression,
Elision ]
es5id: 11.1.4_A1.6
description: >
Checking various properteis and contents of the array defined with
"var array = [,,3,,,]"
--- |
1748 |
| S11.1.4_A1.7.js |
---
info: |
Evaluate the production ArrayLiteral: [ AssignmentExpression, Elision,
AssignmentExpression ]
es5id: 11.1.4_A1.7
description: >
Checking various properteis and contents of the array defined with
"var array = [1,2,,4,5]"
--- |
1735 |
| S11.1.4_A2.js |
---
info: Create multi dimensional array
es5id: 11.1.4_A2
description: >
Checking various properteis and contents of the arrya defined with
"var array = [[1,2], [3], []]"
--- |
4432 |
| shell.js |
|
0 |
| spread-err-mult-err-expr-throws.js |
---
description: Spread operator following other arguments when evaluation throws (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [generators]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
12.3.6.1 Runtime Semantics: ArgumentListEvaluation
ArgumentList : ArgumentList , ... AssignmentExpression
1. Let precedingArgs be the result of evaluating ArgumentList.
2. Let spreadRef be the result of evaluating AssignmentExpression.
3. Let iterator be GetIterator(GetValue(spreadRef) ).
4. ReturnIfAbrupt(iterator).
--- |
1372 |
| spread-err-mult-err-iter-get-value.js |
---
description: Spread operator following other arguments when GetIterator fails (@@iterator function return value) (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [Symbol.iterator]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
12.3.6.1 Runtime Semantics: ArgumentListEvaluation
ArgumentList : ArgumentList , ... AssignmentExpression
1. Let precedingArgs be the result of evaluating ArgumentList.
2. Let spreadRef be the result of evaluating AssignmentExpression.
3. Let iterator be GetIterator(GetValue(spreadRef) ).
4. ReturnIfAbrupt(iterator).
7.4.1 GetIterator ( obj, method )
[...]
2. Let iterator be ? Call(method, obj).
3. If Type(iterator) is not Object, throw a TypeError exception.
--- |
1642 |
| spread-err-mult-err-itr-get-call.js |
---
description: Spread operator following other arguments when GetIterator fails (@@iterator function invocation) (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [Symbol.iterator]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
12.3.6.1 Runtime Semantics: ArgumentListEvaluation
ArgumentList : ArgumentList , ... AssignmentExpression
1. Let precedingArgs be the result of evaluating ArgumentList.
2. Let spreadRef be the result of evaluating AssignmentExpression.
3. Let iterator be GetIterator(GetValue(spreadRef) ).
4. ReturnIfAbrupt(iterator).
7.4.1 GetIterator ( obj, method )
[...]
3. Let iterator be Call(method,obj).
4. ReturnIfAbrupt(iterator).
--- |
1578 |
| spread-err-mult-err-itr-get-get.js |
---
description: Spread operator following other arguments when GetIterator fails (@@iterator property access) (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [Symbol.iterator]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
12.3.6.1 Runtime Semantics: ArgumentListEvaluation
ArgumentList : ArgumentList , ... AssignmentExpression
1. Let precedingArgs be the result of evaluating ArgumentList.
2. Let spreadRef be the result of evaluating AssignmentExpression.
3. Let iterator be GetIterator(GetValue(spreadRef) ).
4. ReturnIfAbrupt(iterator).
7.4.1 GetIterator ( obj, method )
1. If method was not passed, then
a. Let method be ? GetMethod(obj, @@iterator).
--- |
1618 |
| spread-err-mult-err-itr-step.js |
---
description: Spread operator following other arguments when IteratorStep fails (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [Symbol.iterator]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
12.3.6.1 Runtime Semantics: ArgumentListEvaluation
ArgumentList : ArgumentList , ... AssignmentExpression
1. Let precedingArgs be the result of evaluating ArgumentList.
2. Let spreadRef be the result of evaluating AssignmentExpression.
3. Let iterator be GetIterator(GetValue(spreadRef) ).
4. ReturnIfAbrupt(iterator).
7.4.5 IteratorStep ( iterator )
1. Let result be IteratorNext(iterator).
2. ReturnIfAbrupt(result).
7.4.2 IteratorNext ( iterator, value )
1. If value was not passed, then
a. Let result be Invoke(iterator, "next", « »).
[...]
3. ReturnIfAbrupt(result).
--- |
1761 |
| spread-err-mult-err-itr-value.js |
---
description: Spread operator following other arguments when IteratorValue fails (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [Symbol.iterator]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
12.3.6.1 Runtime Semantics: ArgumentListEvaluation
ArgumentList : ArgumentList , ... AssignmentExpression
1. Let precedingArgs be the result of evaluating ArgumentList.
2. Let spreadRef be the result of evaluating AssignmentExpression.
3. Let iterator be GetIterator(GetValue(spreadRef) ).
4. ReturnIfAbrupt(iterator).
7.4.4 IteratorValue ( iterResult )
1. Assert: Type(iterResult) is Object.
2. Return Get(iterResult, "value").
7.3.1 Get (O, P)
[...]
3. Return O.[[Get]](P, O).
--- |
1768 |
| spread-err-mult-err-obj-unresolvable.js |
---
description: Object Spread operator results in error when using an unresolvable reference (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [object-spread]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
Pending Runtime Semantics: PropertyDefinitionEvaluation
PropertyDefinition:...AssignmentExpression
1. Let exprValue be the result of evaluating AssignmentExpression.
2. Let fromValue be GetValue(exprValue).
3. ReturnIfAbrupt(fromValue).
4. Let excludedNames be a new empty List.
5. Return CopyDataProperties(object, fromValue, excludedNames).
--- |
1405 |
| spread-err-mult-err-unresolvable.js |
---
description: Spread operator following other arguments when reference is unresolvable (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
12.3.6.1 Runtime Semantics: ArgumentListEvaluation
ArgumentList : ArgumentList , ... AssignmentExpression
1. Let precedingArgs be the result of evaluating ArgumentList.
2. Let spreadRef be the result of evaluating AssignmentExpression.
3. Let iterator be GetIterator(GetValue(spreadRef) ).
4. ReturnIfAbrupt(iterator).
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.
--- |
1539 |
| spread-err-sngl-err-expr-throws.js |
---
description: Spread operator applied to the only argument when evaluation throws (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [generators]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
12.3.6.1 Runtime Semantics: ArgumentListEvaluation
ArgumentList : ... AssignmentExpression
1. Let list be an empty List.
2. Let spreadRef be the result of evaluating AssignmentExpression.
3. Let spreadObj be GetValue(spreadRef).
4. Let iterator be GetIterator(spreadObj).
5. ReturnIfAbrupt(iterator).
--- |
1357 |
| spread-err-sngl-err-itr-get-call.js |
---
description: Spread operator applied to the only argument when GetIterator fails (@@iterator function invocation) (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [Symbol.iterator]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
12.3.6.1 Runtime Semantics: ArgumentListEvaluation
ArgumentList : ... AssignmentExpression
1. Let list be an empty List.
2. Let spreadRef be the result of evaluating AssignmentExpression.
3. Let spreadObj be GetValue(spreadRef).
4. Let iterator be GetIterator(spreadObj).
5. ReturnIfAbrupt(iterator).
7.4.1 GetIterator ( obj, method )
[...]
3. Let iterator be Call(method,obj).
4. ReturnIfAbrupt(iterator).
--- |
1564 |
| spread-err-sngl-err-itr-get-get.js |
---
description: Spread operator applied to the only argument when GetIterator fails (@@iterator property access) (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [Symbol.iterator]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
12.3.6.1 Runtime Semantics: ArgumentListEvaluation
ArgumentList : ... AssignmentExpression
1. Let list be an empty List.
2. Let spreadRef be the result of evaluating AssignmentExpression.
3. Let spreadObj be GetValue(spreadRef).
4. Let iterator be GetIterator(spreadObj).
5. ReturnIfAbrupt(iterator).
7.4.1 GetIterator ( obj, method )
1. If method was not passed, then
a. Let method be ? GetMethod(obj, @@iterator).
--- |
1604 |
| spread-err-sngl-err-itr-get-value.js |
---
description: Spread operator applied to the only argument when GetIterator fails (@@iterator function return value) (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [Symbol.iterator]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
12.3.6.1 Runtime Semantics: ArgumentListEvaluation
ArgumentList : ... AssignmentExpression
1. Let list be an empty List.
2. Let spreadRef be the result of evaluating AssignmentExpression.
3. Let spreadObj be GetValue(spreadRef).
4. Let iterator be GetIterator(spreadObj).
5. ReturnIfAbrupt(iterator).
7.4.1 GetIterator ( obj, method )
[...]
2. Let iterator be ? Call(method, obj).
3. If Type(iterator) is not Object, throw a TypeError exception.
--- |
1590 |
| spread-err-sngl-err-itr-step.js |
---
description: Spread operator applied to the only argument when IteratorStep fails (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [Symbol.iterator]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
12.3.6.1 Runtime Semantics: ArgumentListEvaluation
ArgumentList : ... AssignmentExpression
1. Let list be an empty List.
2. Let spreadRef be the result of evaluating AssignmentExpression.
3. Let spreadObj be GetValue(spreadRef).
4. Let iterator be GetIterator(spreadObj).
5. ReturnIfAbrupt(iterator).
6. Repeat
a. Let next be IteratorStep(iterator).
b. ReturnIfAbrupt(next).
7.4.5 IteratorStep ( iterator )
1. Let result be IteratorNext(iterator).
2. ReturnIfAbrupt(result).
7.4.2 IteratorNext ( iterator, value )
1. If value was not passed, then
a. Let result be Invoke(iterator, "next", « »).
[...]
3. ReturnIfAbrupt(result).
--- |
1839 |
| spread-err-sngl-err-itr-value.js |
---
description: Spread operator applied to the only argument when IteratorValue fails (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [Symbol.iterator]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
12.3.6.1 Runtime Semantics: ArgumentListEvaluation
ArgumentList : ... AssignmentExpression
1. Let list be an empty List.
2. Let spreadRef be the result of evaluating AssignmentExpression.
3. Let spreadObj be GetValue(spreadRef).
4. Let iterator be GetIterator(spreadObj).
5. ReturnIfAbrupt(iterator).
6. Repeat
a. Let next be IteratorStep(iterator).
b. ReturnIfAbrupt(next).
c. If next is false, return list.
d. Let nextArg be IteratorValue(next).
e. ReturnIfAbrupt(nextArg).
7.4.4 IteratorValue ( iterResult )
1. Assert: Type(iterResult) is Object.
2. Return Get(iterResult, "value").
7.3.1 Get (O, P)
[...]
3. Return O.[[Get]](P, O).
--- |
1968 |
| spread-err-sngl-err-obj-unresolvable.js |
---
description: Object Spread operator results in error when using an unresolvable reference (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [object-spread]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
Pending Runtime Semantics: PropertyDefinitionEvaluation
PropertyDefinition:...AssignmentExpression
1. Let exprValue be the result of evaluating AssignmentExpression.
2. Let fromValue be GetValue(exprValue).
3. ReturnIfAbrupt(fromValue).
4. Let excludedNames be a new empty List.
5. Return CopyDataProperties(object, fromValue, excludedNames).
--- |
1399 |
| spread-err-sngl-err-unresolvable.js |
---
description: Spread operator applied to the only argument when reference is unresolvable (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
12.3.6.1 Runtime Semantics: ArgumentListEvaluation
ArgumentList : ... AssignmentExpression
1. Let list be an empty List.
2. Let spreadRef be the result of evaluating AssignmentExpression.
3. Let spreadObj be GetValue(spreadRef).
4. Let iterator be GetIterator(spreadObj).
5. ReturnIfAbrupt(iterator).
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.
--- |
1525 |
| spread-mult-empty.js |
---
description: Spread operator following other arguments when no iteration occurs (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
12.3.6.1 Runtime Semantics: ArgumentListEvaluation
ArgumentList : ArgumentList , ... AssignmentExpression
1. Let precedingArgs be the result of evaluating ArgumentList.
2. Let spreadRef be the result of evaluating AssignmentExpression.
3. Let iterator be GetIterator(GetValue(spreadRef) ).
4. ReturnIfAbrupt(iterator).
5. Repeat
a. Let next be IteratorStep(iterator).
b. ReturnIfAbrupt(next).
c. If next is false, return precedingArgs.
--- |
1655 |
| spread-mult-expr.js |
---
description: Spread operator applied to AssignmentExpression following other elements (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
12.3.6.1 Runtime Semantics: ArgumentListEvaluation
ArgumentList : ArgumentList , ... AssignmentExpression
1. Let precedingArgs be the result of evaluating ArgumentList.
2. Let spreadRef be the result of evaluating AssignmentExpression.
3. Let iterator be GetIterator(GetValue(spreadRef) ).
4. ReturnIfAbrupt(iterator).
5. Repeat
a. Let next be IteratorStep(iterator).
b. ReturnIfAbrupt(next).
c. If next is false, return precedingArgs.
--- |
1816 |
| spread-mult-iter.js |
---
description: Spread operator following other arguments with a valid iterator (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [Symbol.iterator]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
12.3.6.1 Runtime Semantics: ArgumentListEvaluation
ArgumentList : ... AssignmentExpression
1. Let list be an empty List.
2. Let spreadRef be the result of evaluating AssignmentExpression.
3. Let spreadObj be GetValue(spreadRef).
4. Let iterator be GetIterator(spreadObj).
5. ReturnIfAbrupt(iterator).
6. Repeat
a. Let next be IteratorStep(iterator).
b. ReturnIfAbrupt(next).
c. If next is false, return list.
d. Let nextArg be IteratorValue(next).
e. ReturnIfAbrupt(nextArg).
f. Append nextArg as the last element of list.
--- |
2068 |
| spread-mult-literal.js |
---
description: Spread operator applied to AssignmentExpression following other elements (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
12.3.6.1 Runtime Semantics: ArgumentListEvaluation
ArgumentList : ArgumentList , ... AssignmentExpression
1. Let precedingArgs be the result of evaluating ArgumentList.
2. Let spreadRef be the result of evaluating AssignmentExpression.
3. Let iterator be GetIterator(GetValue(spreadRef) ).
4. ReturnIfAbrupt(iterator).
5. Repeat
a. Let next be IteratorStep(iterator).
b. ReturnIfAbrupt(next).
c. If next is false, return precedingArgs.
--- |
1741 |
| spread-mult-obj-ident.js |
---
description: Object Spread operator following other properties (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [object-spread]
flags: [generated]
includes: [propertyHelper.js]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
Pending Runtime Semantics: PropertyDefinitionEvaluation
PropertyDefinition:...AssignmentExpression
1. Let exprValue be the result of evaluating AssignmentExpression.
2. Let fromValue be GetValue(exprValue).
3. ReturnIfAbrupt(fromValue).
4. Let excludedNames be a new empty List.
5. Return CopyDataProperties(object, fromValue, excludedNames).
--- |
1971 |
| spread-mult-obj-null.js |
---
description: Object Spread operator following other arguments with null value (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [object-spread]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
Pending Runtime Semantics: PropertyDefinitionEvaluation
PropertyDefinition:...AssignmentExpression
1. Let exprValue be the result of evaluating AssignmentExpression.
2. Let fromValue be GetValue(exprValue).
3. ReturnIfAbrupt(fromValue).
4. Let excludedNames be a new empty List.
5. Return CopyDataProperties(object, fromValue, excludedNames).
--- |
1535 |
| spread-mult-obj-undefined.js |
---
description: Object Spread operator following other arguments with undefined (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [object-spread]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
Pending Runtime Semantics: PropertyDefinitionEvaluation
PropertyDefinition:...AssignmentExpression
1. Let exprValue be the result of evaluating AssignmentExpression.
2. Let fromValue be GetValue(exprValue).
3. ReturnIfAbrupt(fromValue).
4. Let excludedNames be a new empty List.
5. Return CopyDataProperties(object, fromValue, excludedNames).
--- |
1544 |
| spread-obj-getter-descriptor.js |
---
description: Spread operation with getter results in data property descriptor (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [object-spread]
flags: [generated]
includes: [propertyHelper.js]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
Pending Runtime Semantics: PropertyDefinitionEvaluation
PropertyDefinition:...AssignmentExpression
1. Let exprValue be the result of evaluating AssignmentExpression.
2. Let fromValue be GetValue(exprValue).
3. ReturnIfAbrupt(fromValue).
4. Let excludedNames be a new empty List.
5. Return CopyDataProperties(object, fromValue, excludedNames).
--- |
1739 |
| spread-obj-getter-init.js |
---
description: Getter in object literal is not evaluated (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [object-spread]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
--- |
1254 |
| spread-obj-manipulate-outter-obj-in-getter.js |
---
description: Getter manipulates outter object before it's spread operation (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [object-spread]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
Pending Runtime Semantics: PropertyDefinitionEvaluation
PropertyDefinition:...AssignmentExpression
1. Let exprValue be the result of evaluating AssignmentExpression.
2. Let fromValue be GetValue(exprValue).
3. ReturnIfAbrupt(fromValue).
4. Let excludedNames be a new empty List.
5. Return CopyDataProperties(object, fromValue, excludedNames).
--- |
1736 |
| spread-obj-mult-spread-getter.js |
---
description: Multiple Object Spread usage calls getter multiple times (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [object-spread]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
Pending Runtime Semantics: PropertyDefinitionEvaluation
PropertyDefinition:...AssignmentExpression
1. Let exprValue be the result of evaluating AssignmentExpression.
2. Let fromValue be GetValue(exprValue).
3. ReturnIfAbrupt(fromValue).
4. Let excludedNames be a new empty List.
5. Return CopyDataProperties(object, fromValue, excludedNames).
--- |
1669 |
| spread-obj-mult-spread.js |
---
description: Multiple Object Spread operation (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [object-spread]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
Pending Runtime Semantics: PropertyDefinitionEvaluation
PropertyDefinition:...AssignmentExpression
1. Let exprValue be the result of evaluating AssignmentExpression.
2. Let fromValue be GetValue(exprValue).
3. ReturnIfAbrupt(fromValue).
4. Let excludedNames be a new empty List.
5. Return CopyDataProperties(object, fromValue, excludedNames).
--- |
1604 |
| spread-obj-null.js |
---
description: Null Object Spread is ignored (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [object-spread]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
Pending Runtime Semantics: PropertyDefinitionEvaluation
PropertyDefinition:...AssignmentExpression
1. Let exprValue be the result of evaluating AssignmentExpression.
2. Let fromValue be GetValue(exprValue).
3. ReturnIfAbrupt(fromValue).
4. Let excludedNames be a new empty List.
5. Return CopyDataProperties(object, fromValue, excludedNames).
--- |
1423 |
| spread-obj-override-immutable.js |
---
description: Object Spread overriding immutable properties (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [object-spread]
flags: [generated]
includes: [propertyHelper.js]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
--- |
1468 |
| spread-obj-overrides-prev-properties.js |
---
description: Object Spread properties overrides previous definitions (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [object-spread]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
Pending Runtime Semantics: PropertyDefinitionEvaluation
PropertyDefinition:...AssignmentExpression
1. Let exprValue be the result of evaluating AssignmentExpression.
2. Let fromValue be GetValue(exprValue).
3. ReturnIfAbrupt(fromValue).
4. Let excludedNames be a new empty List.
5. Return CopyDataProperties(object, fromValue, excludedNames).
--- |
1618 |
| spread-obj-skip-non-enumerable.js |
---
description: Object Spread doesn't copy non-enumerable properties (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [object-spread]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
--- |
1210 |
| spread-obj-spread-order.js |
---
description: Spread operation follows [[OwnPropertyKeys]] order (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [Symbol, object-spread]
flags: [generated]
includes: [compareArray.js]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
Pending Runtime Semantics: PropertyDefinitionEvaluation
PropertyDefinition:...AssignmentExpression
1. Let exprValue be the result of evaluating AssignmentExpression.
2. Let fromValue be GetValue(exprValue).
3. ReturnIfAbrupt(fromValue).
4. Let excludedNames be a new empty List.
5. Return CopyDataProperties(object, fromValue, excludedNames).
--- |
1818 |
| spread-obj-symbol-property.js |
---
description: Spread operation where source object contains Symbol properties (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [Symbol, object-spread]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
Pending Runtime Semantics: PropertyDefinitionEvaluation
PropertyDefinition:...AssignmentExpression
1. Let exprValue be the result of evaluating AssignmentExpression.
2. Let fromValue be GetValue(exprValue).
3. ReturnIfAbrupt(fromValue).
4. Let excludedNames be a new empty List.
5. Return CopyDataProperties(object, fromValue, excludedNames).
--- |
1727 |
| spread-obj-undefined.js |
---
description: Undefined Object Spread is ignored (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [object-spread]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
Pending Runtime Semantics: PropertyDefinitionEvaluation
PropertyDefinition:...AssignmentExpression
1. Let exprValue be the result of evaluating AssignmentExpression.
2. Let fromValue be GetValue(exprValue).
3. ReturnIfAbrupt(fromValue).
4. Let excludedNames be a new empty List.
5. Return CopyDataProperties(object, fromValue, excludedNames).
--- |
1438 |
| spread-obj-with-overrides.js |
---
description: Object Spread properties being overriden (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [Symbol, object-spread]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
Pending Runtime Semantics: PropertyDefinitionEvaluation
PropertyDefinition:...AssignmentExpression
1. Let exprValue be the result of evaluating AssignmentExpression.
2. Let fromValue be GetValue(exprValue).
3. ReturnIfAbrupt(fromValue).
4. Let excludedNames be a new empty List.
5. Return CopyDataProperties(object, fromValue, excludedNames).
--- |
1898 |
| spread-sngl-empty.js |
---
description: Spread operator applied to the only argument when no iteration occurs (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
12.3.6.1 Runtime Semantics: ArgumentListEvaluation
ArgumentList : ... AssignmentExpression
1. Let list be an empty List.
2. Let spreadRef be the result of evaluating AssignmentExpression.
3. Let spreadObj be GetValue(spreadRef).
4. Let iterator be GetIterator(spreadObj).
5. ReturnIfAbrupt(iterator).
6. Repeat
a. Let next be IteratorStep(iterator).
b. ReturnIfAbrupt(next).
c. If next is false, return list.
[...]
--- |
1528 |
| spread-sngl-expr.js |
---
description: Spread operator applied to AssignmentExpression as only element (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
12.3.6.1 Runtime Semantics: ArgumentListEvaluation
ArgumentList : ... AssignmentExpression
1. Let list be an empty List.
2. Let spreadRef be the result of evaluating AssignmentExpression.
3. Let spreadObj be GetValue(spreadRef).
4. Let iterator be GetIterator(spreadObj).
5. ReturnIfAbrupt(iterator).
6. Repeat
a. Let next be IteratorStep(iterator).
b. ReturnIfAbrupt(next).
c. If next is false, return list.
d. Let nextArg be IteratorValue(next).
e. ReturnIfAbrupt(nextArg).
f. Append nextArg as the last element of list.
--- |
1839 |
| spread-sngl-iter.js |
---
description: Spread operator applied to the only argument with a valid iterator (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [Symbol.iterator]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
12.3.6.1 Runtime Semantics: ArgumentListEvaluation
ArgumentList : ... AssignmentExpression
1. Let list be an empty List.
2. Let spreadRef be the result of evaluating AssignmentExpression.
3. Let spreadObj be GetValue(spreadRef).
4. Let iterator be GetIterator(spreadObj).
5. ReturnIfAbrupt(iterator).
6. Repeat
a. Let next be IteratorStep(iterator).
b. ReturnIfAbrupt(next).
c. If next is false, return list.
d. Let nextArg be IteratorValue(next).
e. ReturnIfAbrupt(nextArg).
f. Append nextArg as the last element of list.
--- |
1951 |
| spread-sngl-literal.js |
---
description: Spread operator applied to array literal as only element (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
12.3.6.1 Runtime Semantics: ArgumentListEvaluation
ArgumentList : ... AssignmentExpression
1. Let list be an empty List.
2. Let spreadRef be the result of evaluating AssignmentExpression.
3. Let spreadObj be GetValue(spreadRef).
4. Let iterator be GetIterator(spreadObj).
5. ReturnIfAbrupt(iterator).
6. Repeat
a. Let next be IteratorStep(iterator).
b. ReturnIfAbrupt(next).
c. If next is false, return list.
d. Let nextArg be IteratorValue(next).
e. ReturnIfAbrupt(nextArg).
f. Append nextArg as the last element of list.
--- |
1757 |
| spread-sngl-obj-ident.js |
---
description: Object Spread operator without other arguments (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [object-spread]
flags: [generated]
includes: [propertyHelper.js]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
Pending Runtime Semantics: PropertyDefinitionEvaluation
PropertyDefinition:...AssignmentExpression
1. Let exprValue be the result of evaluating AssignmentExpression.
2. Let fromValue be GetValue(exprValue).
3. ReturnIfAbrupt(fromValue).
4. Let excludedNames be a new empty List.
5. Return CopyDataProperties(object, fromValue, excludedNames).
--- |
1726 |