| array-destructuring-param-strict-body.js |
|
5705 |
| await-as-binding-identifier-escaped.js |
---
description: await is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
BindingIdentifier : Identifier
It is a Syntax Error if this production has a [Await] parameter and
StringValue of Identifier is "await".
--- |
1042 |
| await-as-binding-identifier.js |
---
description: await is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
BindingIdentifier : Identifier
It is a Syntax Error if this production has a [Await] parameter and
StringValue of Identifier is "await".
--- |
1029 |
| await-as-identifier-reference-escaped.js |
---
description: await is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
IdentifierReference : Identifier
It is a Syntax Error if this production has a [Await] parameter and
StringValue of Identifier is "await".
--- |
1050 |
| await-as-identifier-reference.js |
---
description: await is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
IdentifierReference : Identifier
It is a Syntax Error if this production has a [Await] parameter and
StringValue of Identifier is "await".
--- |
1037 |
| await-as-label-identifier-escaped.js |
---
description: await is a reserved keyword within generator function bodies and may not be used as a label identifier. (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
LabelIdentifier : Identifier
It is a Syntax Error if this production has a [Await] parameter and
StringValue of Identifier is "await".
--- |
1034 |
| await-as-label-identifier.js |
---
description: await is a reserved keyword within generator function bodies and may not be used as a label identifier. (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
LabelIdentifier : Identifier
It is a Syntax Error if this production has a [Await] parameter and
StringValue of Identifier is "await".
--- |
1021 |
| browser.js |
|
0 |
| dflt-params-abrupt.js |
---
description: Abrupt completion returned by evaluation of initializer (class expression async generator method)
esid: sec-class-definitions-runtime-semantics-evaluation
features: [default-parameters, async-iteration]
flags: [generated]
info: |
ClassExpression : class BindingIdentifieropt ClassTail
1. If BindingIdentifieropt is not present, let className be undefined.
2. Else, let className be StringValue of BindingIdentifier.
3. Let value be the result of ClassDefinitionEvaluation of ClassTail
with argument className.
[...]
14.5.14 Runtime Semantics: ClassDefinitionEvaluation
21. For each ClassElement m in order from methods
a. If IsStatic of m is false, then
i. Let status be the result of performing
PropertyDefinitionEvaluation for m with arguments proto and
false.
[...]
14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
GeneratorMethod :
PropertyName ( StrictFormalParameters ) { GeneratorBody }
1. Let propKey be the result of evaluating PropertyName.
2. ReturnIfAbrupt(propKey).
3. If the function code for this GeneratorMethod is strict mode code,
let strict be true. Otherwise let strict be false.
4. Let scope be the running execution context's LexicalEnvironment.
5. Let closure be GeneratorFunctionCreate(Method,
StrictFormalParameters, GeneratorBody, scope, strict).
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
14.1.19 Runtime Semantics: IteratorBindingInitialization
FormalsList : FormalsList , FormalParameter
1. Let status be the result of performing IteratorBindingInitialization for
FormalsList using iteratorRecord and environment as the arguments.
2. ReturnIfAbrupt(status).
3. Return the result of performing IteratorBindingInitialization for
FormalParameter using iteratorRecord and environment as the arguments.
--- |
3055 |
| dflt-params-arg-val-not-undefined.js |
---
description: Use of initializer when argument value is not `undefined` (class expression async generator method)
esid: sec-class-definitions-runtime-semantics-evaluation
features: [default-parameters, async-iteration]
flags: [generated, async]
info: |
ClassExpression : class BindingIdentifieropt ClassTail
1. If BindingIdentifieropt is not present, let className be undefined.
2. Else, let className be StringValue of BindingIdentifier.
3. Let value be the result of ClassDefinitionEvaluation of ClassTail
with argument className.
[...]
14.5.14 Runtime Semantics: ClassDefinitionEvaluation
21. For each ClassElement m in order from methods
a. If IsStatic of m is false, then
i. Let status be the result of performing
PropertyDefinitionEvaluation for m with arguments proto and
false.
[...]
Runtime Semantics: PropertyDefinitionEvaluation
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
{ AsyncGeneratorBody }
1. Let propKey be the result of evaluating PropertyName.
2. ReturnIfAbrupt(propKey).
3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
Otherwise let strict be false.
4. Let scope be the running execution context's LexicalEnvironment.
5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
AsyncGeneratorBody, scope, strict).
[...]
14.1.19 Runtime Semantics: IteratorBindingInitialization
FormalsList : FormalsList , FormalParameter
[...]
23. Let iteratorRecord be Record {[[Iterator]]:
CreateListIterator(argumentsList), [[Done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
a. Perform ? IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
--- |
3372 |
| dflt-params-arg-val-undefined.js |
---
description: Use of initializer when argument value is `undefined` (class expression async generator method)
esid: sec-class-definitions-runtime-semantics-evaluation
features: [default-parameters, async-iteration]
flags: [generated, async]
info: |
ClassExpression : class BindingIdentifieropt ClassTail
1. If BindingIdentifieropt is not present, let className be undefined.
2. Else, let className be StringValue of BindingIdentifier.
3. Let value be the result of ClassDefinitionEvaluation of ClassTail
with argument className.
[...]
14.5.14 Runtime Semantics: ClassDefinitionEvaluation
21. For each ClassElement m in order from methods
a. If IsStatic of m is false, then
i. Let status be the result of performing
PropertyDefinitionEvaluation for m with arguments proto and
false.
[...]
Runtime Semantics: PropertyDefinitionEvaluation
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
{ AsyncGeneratorBody }
1. Let propKey be the result of evaluating PropertyName.
2. ReturnIfAbrupt(propKey).
3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
Otherwise let strict be false.
4. Let scope be the running execution context's LexicalEnvironment.
5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
AsyncGeneratorBody, scope, strict).
[...]
14.1.19 Runtime Semantics: IteratorBindingInitialization
FormalsList : FormalsList , FormalParameter
[...]
23. Let iteratorRecord be Record {[[Iterator]]:
CreateListIterator(argumentsList), [[Done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
a. Perform ? IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
--- |
2635 |
| dflt-params-duplicates.js |
---
description: It is a Syntax Error if BoundNames of FormalParameters contains any duplicate elements. (class expression async generator method)
esid: sec-class-definitions-runtime-semantics-evaluation
features: [default-parameters, async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
ClassExpression : class BindingIdentifieropt ClassTail
1. If BindingIdentifieropt is not present, let className be undefined.
2. Else, let className be StringValue of BindingIdentifier.
3. Let value be the result of ClassDefinitionEvaluation of ClassTail
with argument className.
[...]
14.5.14 Runtime Semantics: ClassDefinitionEvaluation
21. For each ClassElement m in order from methods
a. If IsStatic of m is false, then
i. Let status be the result of performing
PropertyDefinitionEvaluation for m with arguments proto and
false.
[...]
Runtime Semantics: PropertyDefinitionEvaluation
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
{ AsyncGeneratorBody }
1. Let propKey be the result of evaluating PropertyName.
2. ReturnIfAbrupt(propKey).
3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
Otherwise let strict be false.
4. Let scope be the running execution context's LexicalEnvironment.
5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
AsyncGeneratorBody, scope, strict).
[...]
14.1.2 Static Semantics: Early Errors
StrictFormalParameters : FormalParameters
- It is a Syntax Error if BoundNames of FormalParameters contains any
duplicate elements.
FormalParameters : FormalParameterList
- It is a Syntax Error if IsSimpleParameterList of FormalParameterList is
false and BoundNames of FormalParameterList contains any duplicate
elements.
--- |
2292 |
| dflt-params-ref-later.js |
---
description: Referencing a parameter that occurs later in the ParameterList (class expression async generator method)
esid: sec-class-definitions-runtime-semantics-evaluation
features: [default-parameters, async-iteration]
flags: [generated]
info: |
ClassExpression : class BindingIdentifieropt ClassTail
1. If BindingIdentifieropt is not present, let className be undefined.
2. Else, let className be StringValue of BindingIdentifier.
3. Let value be the result of ClassDefinitionEvaluation of ClassTail
with argument className.
[...]
14.5.14 Runtime Semantics: ClassDefinitionEvaluation
21. For each ClassElement m in order from methods
a. If IsStatic of m is false, then
i. Let status be the result of performing
PropertyDefinitionEvaluation for m with arguments proto and
false.
[...]
14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
GeneratorMethod :
PropertyName ( StrictFormalParameters ) { GeneratorBody }
1. Let propKey be the result of evaluating PropertyName.
2. ReturnIfAbrupt(propKey).
3. If the function code for this GeneratorMethod is strict mode code,
let strict be true. Otherwise let strict be false.
4. Let scope be the running execution context's LexicalEnvironment.
5. Let closure be GeneratorFunctionCreate(Method,
StrictFormalParameters, GeneratorBody, scope, strict).
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
14.1.19 Runtime Semantics: IteratorBindingInitialization
FormalsList : FormalsList , FormalParameter
1. Let status be the result of performing IteratorBindingInitialization for
FormalsList using iteratorRecord and environment as the arguments.
2. ReturnIfAbrupt(status).
3. Return the result of performing IteratorBindingInitialization for
FormalParameter using iteratorRecord and environment as the arguments.
--- |
3038 |
| dflt-params-ref-prior.js |
---
description: Referencing a parameter that occurs earlier in the ParameterList (class expression async generator method)
esid: sec-class-definitions-runtime-semantics-evaluation
features: [default-parameters, async-iteration]
flags: [generated, async]
info: |
ClassExpression : class BindingIdentifieropt ClassTail
1. If BindingIdentifieropt is not present, let className be undefined.
2. Else, let className be StringValue of BindingIdentifier.
3. Let value be the result of ClassDefinitionEvaluation of ClassTail
with argument className.
[...]
14.5.14 Runtime Semantics: ClassDefinitionEvaluation
21. For each ClassElement m in order from methods
a. If IsStatic of m is false, then
i. Let status be the result of performing
PropertyDefinitionEvaluation for m with arguments proto and
false.
[...]
Runtime Semantics: PropertyDefinitionEvaluation
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
{ AsyncGeneratorBody }
1. Let propKey be the result of evaluating PropertyName.
2. ReturnIfAbrupt(propKey).
3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
Otherwise let strict be false.
4. Let scope be the running execution context's LexicalEnvironment.
5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
AsyncGeneratorBody, scope, strict).
[...]
14.1.19 Runtime Semantics: IteratorBindingInitialization
FormalsList : FormalsList , FormalParameter
1. Let status be the result of performing IteratorBindingInitialization for
FormalsList using iteratorRecord and environment as the arguments.
2. ReturnIfAbrupt(status).
3. Return the result of performing IteratorBindingInitialization for
FormalParameter using iteratorRecord and environment as the arguments.
--- |
2668 |
| dflt-params-ref-self.js |
---
description: Referencing a parameter from within its own initializer (class expression async generator method)
esid: sec-class-definitions-runtime-semantics-evaluation
features: [default-parameters, async-iteration]
flags: [generated]
info: |
ClassExpression : class BindingIdentifieropt ClassTail
1. If BindingIdentifieropt is not present, let className be undefined.
2. Else, let className be StringValue of BindingIdentifier.
3. Let value be the result of ClassDefinitionEvaluation of ClassTail
with argument className.
[...]
14.5.14 Runtime Semantics: ClassDefinitionEvaluation
21. For each ClassElement m in order from methods
a. If IsStatic of m is false, then
i. Let status be the result of performing
PropertyDefinitionEvaluation for m with arguments proto and
false.
[...]
14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
GeneratorMethod :
PropertyName ( StrictFormalParameters ) { GeneratorBody }
1. Let propKey be the result of evaluating PropertyName.
2. ReturnIfAbrupt(propKey).
3. If the function code for this GeneratorMethod is strict mode code,
let strict be true. Otherwise let strict be false.
4. Let scope be the running execution context's LexicalEnvironment.
5. Let closure be GeneratorFunctionCreate(Method,
StrictFormalParameters, GeneratorBody, scope, strict).
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
14.1.19 Runtime Semantics: IteratorBindingInitialization
FormalsList : FormalsList , FormalParameter
1. Let status be the result of performing IteratorBindingInitialization for
FormalsList using iteratorRecord and environment as the arguments.
2. ReturnIfAbrupt(status).
3. Return the result of performing IteratorBindingInitialization for
FormalParameter using iteratorRecord and environment as the arguments.
--- |
3027 |
| dflt-params-rest.js |
---
description: RestParameter does not support an initializer (class expression async generator method)
esid: sec-class-definitions-runtime-semantics-evaluation
features: [default-parameters, async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
ClassExpression : class BindingIdentifieropt ClassTail
1. If BindingIdentifieropt is not present, let className be undefined.
2. Else, let className be StringValue of BindingIdentifier.
3. Let value be the result of ClassDefinitionEvaluation of ClassTail
with argument className.
[...]
14.5.14 Runtime Semantics: ClassDefinitionEvaluation
21. For each ClassElement m in order from methods
a. If IsStatic of m is false, then
i. Let status be the result of performing
PropertyDefinitionEvaluation for m with arguments proto and
false.
[...]
Runtime Semantics: PropertyDefinitionEvaluation
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
{ AsyncGeneratorBody }
1. Let propKey be the result of evaluating PropertyName.
2. ReturnIfAbrupt(propKey).
3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
Otherwise let strict be false.
4. Let scope be the running execution context's LexicalEnvironment.
5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
AsyncGeneratorBody, scope, strict).
[...]
14.1 Function Definitions
Syntax
FunctionRestParameter[Yield] :
BindingRestElement[?Yield]
13.3.3 Destructuring Binding Patterns
Syntax
BindingRestElement[Yield] :
...BindingIdentifier[?Yield]
...BindingPattern[?Yield]
--- |
2111 |
| dflt-params-trailing-comma.js |
---
description: A trailing comma should not increase the respective length, using default parameters (class expression async generator method)
esid: sec-class-definitions-runtime-semantics-evaluation
features: [async-iteration]
flags: [generated, async]
info: |
ClassExpression : class BindingIdentifieropt ClassTail
1. If BindingIdentifieropt is not present, let className be undefined.
2. Else, let className be StringValue of BindingIdentifier.
3. Let value be the result of ClassDefinitionEvaluation of ClassTail
with argument className.
[...]
14.5.14 Runtime Semantics: ClassDefinitionEvaluation
21. For each ClassElement m in order from methods
a. If IsStatic of m is false, then
i. Let status be the result of performing
PropertyDefinitionEvaluation for m with arguments proto and
false.
[...]
Runtime Semantics: PropertyDefinitionEvaluation
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
{ AsyncGeneratorBody }
1. Let propKey be the result of evaluating PropertyName.
2. ReturnIfAbrupt(propKey).
3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
Otherwise let strict be false.
4. Let scope be the running execution context's LexicalEnvironment.
5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
AsyncGeneratorBody, scope, strict).
[...]
Trailing comma in the parameters list
14.1 Function Definitions
FormalParameters[Yield, Await] : FormalParameterList[?Yield, ?Await] ,
--- |
2334 |
| forbidden-ext |
|
|
| object-destructuring-param-strict-body.js |
|
5708 |
| params-trailing-comma-multiple.js |
---
description: A trailing comma should not increase the respective length, using multiple parameters (class expression async generator method)
esid: sec-class-definitions-runtime-semantics-evaluation
features: [async-iteration]
flags: [generated, async]
info: |
ClassExpression : class BindingIdentifieropt ClassTail
1. If BindingIdentifieropt is not present, let className be undefined.
2. Else, let className be StringValue of BindingIdentifier.
3. Let value be the result of ClassDefinitionEvaluation of ClassTail
with argument className.
[...]
14.5.14 Runtime Semantics: ClassDefinitionEvaluation
21. For each ClassElement m in order from methods
a. If IsStatic of m is false, then
i. Let status be the result of performing
PropertyDefinitionEvaluation for m with arguments proto and
false.
[...]
Runtime Semantics: PropertyDefinitionEvaluation
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
{ AsyncGeneratorBody }
1. Let propKey be the result of evaluating PropertyName.
2. ReturnIfAbrupt(propKey).
3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
Otherwise let strict be false.
4. Let scope be the running execution context's LexicalEnvironment.
5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
AsyncGeneratorBody, scope, strict).
[...]
Trailing comma in the parameters list
14.1 Function Definitions
FormalParameters[Yield, Await] : FormalParameterList[?Yield, ?Await] ,
--- |
2327 |
| params-trailing-comma-single.js |
---
description: A trailing comma should not increase the respective length, using a single parameter (class expression async generator method)
esid: sec-class-definitions-runtime-semantics-evaluation
features: [async-iteration]
flags: [generated, async]
info: |
ClassExpression : class BindingIdentifieropt ClassTail
1. If BindingIdentifieropt is not present, let className be undefined.
2. Else, let className be StringValue of BindingIdentifier.
3. Let value be the result of ClassDefinitionEvaluation of ClassTail
with argument className.
[...]
14.5.14 Runtime Semantics: ClassDefinitionEvaluation
21. For each ClassElement m in order from methods
a. If IsStatic of m is false, then
i. Let status be the result of performing
PropertyDefinitionEvaluation for m with arguments proto and
false.
[...]
Runtime Semantics: PropertyDefinitionEvaluation
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
{ AsyncGeneratorBody }
1. Let propKey be the result of evaluating PropertyName.
2. ReturnIfAbrupt(propKey).
3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
Otherwise let strict be false.
4. Let scope be the running execution context's LexicalEnvironment.
5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
AsyncGeneratorBody, scope, strict).
[...]
Trailing comma in the parameters list
14.1 Function Definitions
FormalParameters[Yield, Await] : FormalParameterList[?Yield, ?Await] ,
--- |
2289 |
| rest-param-strict-body.js |
|
5714 |
| rest-params-trailing-comma-early-error.js |
---
description: It's a syntax error if a FunctionRestParameter is followed by a trailing comma (class expression async generator method)
esid: sec-class-definitions-runtime-semantics-evaluation
features: [async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
ClassExpression : class BindingIdentifieropt ClassTail
1. If BindingIdentifieropt is not present, let className be undefined.
2. Else, let className be StringValue of BindingIdentifier.
3. Let value be the result of ClassDefinitionEvaluation of ClassTail
with argument className.
[...]
14.5.14 Runtime Semantics: ClassDefinitionEvaluation
21. For each ClassElement m in order from methods
a. If IsStatic of m is false, then
i. Let status be the result of performing
PropertyDefinitionEvaluation for m with arguments proto and
false.
[...]
Runtime Semantics: PropertyDefinitionEvaluation
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
{ AsyncGeneratorBody }
1. Let propKey be the result of evaluating PropertyName.
2. ReturnIfAbrupt(propKey).
3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
Otherwise let strict be false.
4. Let scope be the running execution context's LexicalEnvironment.
5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
AsyncGeneratorBody, scope, strict).
[...]
Trailing comma in the parameters list
14.1 Function Definitions
FormalParameters[Yield, Await] :
[empty]
FunctionRestParameter[?Yield, ?Await]
FormalParameterList[?Yield, ?Await]
FormalParameterList[?Yield, ?Await] ,
FormalParameterList[?Yield, ?Await] , FunctionRestParameter[?Yield, ?Await]
--- |
2220 |
| shell.js |
|
0 |
| yield-as-binding-identifier-escaped.js |
---
description: yield is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
BindingIdentifier : Identifier
It is a Syntax Error if this production has a [Yield] parameter and
StringValue of Identifier is "yield".
--- |
1042 |
| yield-as-binding-identifier.js |
---
description: yield is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
BindingIdentifier : Identifier
It is a Syntax Error if this production has a [Yield] parameter and
StringValue of Identifier is "yield".
--- |
1029 |
| yield-as-identifier-reference-escaped.js |
---
description: yield is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
IdentifierReference : Identifier
It is a Syntax Error if this production has a [Yield] parameter and
StringValue of Identifier is "yield".
--- |
1050 |
| yield-as-identifier-reference.js |
---
description: yield is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
IdentifierReference : Identifier
It is a Syntax Error if this production has a [Yield] parameter and
StringValue of Identifier is "yield".
--- |
1037 |
| yield-as-label-identifier-escaped.js |
---
description: yield is a reserved keyword within generator function bodies and may not be used as a label identifier. (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
LabelIdentifier : Identifier
It is a Syntax Error if this production has a [Yield] parameter and
StringValue of Identifier is "yield".
--- |
1034 |
| yield-as-label-identifier.js |
---
description: yield is a reserved keyword within generator function bodies and may not be used as a label identifier. (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
LabelIdentifier : Identifier
It is a Syntax Error if this production has a [Yield] parameter and
StringValue of Identifier is "yield".
--- |
1021 |
| yield-identifier-spread-strict-strict.js |
---
description: It's an early error if the AssignmentExpression is a function body with yield as an identifier in strict mode. (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [object-spread, async-iteration]
flags: [generated, onlyStrict]
negative:
phase: parse
type: SyntaxError
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
Spread Properties
PropertyDefinition[Yield]:
(...)
...AssignmentExpression[In, ?Yield]
--- |
1266 |
| yield-identifier-strict-strict.js |
---
description: It's an early error if the generator body has another function body with yield as an identifier in strict mode. (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [async-iteration]
flags: [generated, onlyStrict]
negative:
phase: parse
type: SyntaxError
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
--- |
1094 |
| yield-promise-reject-next-catch.js |
---
description: yield Promise.reject(value) is treated as throw value (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
--- |
1403 |
| yield-promise-reject-next-for-await-of-async-iterator.js |
---
description: yield * [Promise.reject(value)] is treated as throw value (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
--- |
1530 |
| yield-promise-reject-next-for-await-of-sync-iterator.js |
---
description: yield Promise.reject(value) in for-await-of is treated as throw value (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
--- |
1515 |
| yield-promise-reject-next-yield-star-async-iterator.js |
---
description: yield * (async iterator) is treated as throw value (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
--- |
1487 |
| yield-promise-reject-next-yield-star-sync-iterator.js |
---
description: yield * (async iterator) is treated as throw value (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
--- |
1451 |
| yield-promise-reject-next.js |
---
description: yield Promise.reject(value) is treated as throw value (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
--- |
1404 |
| yield-spread-arr-multiple.js |
---
description: Use yield value in a array spread position (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [async-iteration]
flags: [generated, async]
includes: [compareArray.js]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
Array Initializer
SpreadElement[Yield, Await]:
...AssignmentExpression[+In, ?Yield, ?Await]
--- |
1316 |
| yield-spread-arr-single.js |
---
description: Use yield value in a array spread position (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
Array Initializer
SpreadElement[Yield, Await]:
...AssignmentExpression[+In, ?Yield, ?Await]
--- |
1408 |
| yield-spread-obj.js |
---
description: Use yield value in a object spread position (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [object-spread, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
Spread Properties
PropertyDefinition[Yield]:
(...)
...AssignmentExpression[In, ?Yield]
--- |
1343 |
| yield-star-async-next.js |
---
description: Execution order for yield* with async iterator and next() (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, async-iteration, Symbol.asyncIterator]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
--- |
7347 |
| yield-star-async-return.js |
---
description: execution order for yield* with async iterator and return() (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [async-iteration, Symbol.asyncIterator]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
...
c. Else,
i. Assert: received.[[Type]] is return.
ii. Let return be ? GetMethod(iterator, "return").
iii. If return is undefined, return Completion(received).
iv. Let innerReturnResult be ? Call(return, iterator, « received.[[Value]] »).
v. If generatorKind is async, then set innerReturnResult to ? Await(innerReturnResult).
...
vii. Let done be ? IteratorComplete(innerReturnResult).
viii. If done is true, then
1. Let value be ? IteratorValue(innerReturnResult).
2. If generatorKind is async, then set value to ? Await(value).
3. Return Completion{[[Type]]: return, [[Value]]: value, [[Target]]: empty}.
ix. If generatorKind is async, then let received be AsyncGeneratorYield(? IteratorValue(innerResult)).
...
AsyncGeneratorYield ( value )
...
8. Return ! AsyncGeneratorResolve(generator, value, false).
...
--- |
8056 |
| yield-star-async-throw.js |
---
description: execution order for yield* with async iterator and throw() (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [async-iteration, Symbol.asyncIterator]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
...
b. Else if received.[[Type]] is throw, then
i. Let throw be ? GetMethod(iterator, "throw").
ii. If throw is not undefined, then
1. Let innerResult be ? Call(throw, iterator, « received.[[Value]] »).
2. If generatorKind is async, then set innerResult to ? Await(innerResult).
...
5. Let done be ? IteratorComplete(innerResult).
6. If done is true, then
a. Let resultValue be Return ? IteratorValue(innerResult).
b. If generatorKind is async, then set resultValue to ? Await(resultValue).
c. Return resultValue.
7. If generatorKind is async, then let received be AsyncGeneratorYield(? IteratorValue(innerResult)).
...
AsyncGeneratorYield ( value )
...
8. Return ! AsyncGeneratorResolve(generator, value, false).
...
--- |
8088 |
| yield-star-expr-abrupt.js |
---
description: Abrupt completion while getting yield* operand (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
...
--- |
1514 |
| yield-star-getiter-async-get-abrupt.js |
---
description: Abrupt completion while getting [Symbol.asyncIterator] (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
...
GetMethod ( V, P )
...
2. Let func be ? GetV(V, P).
...
--- |
2021 |
| yield-star-getiter-async-not-callable-boolean-throw.js |
---
description: Throws a TypeError on a non-callable [Symbol.asyncIterator] (boolean) (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
...
GetMethod ( V, P )
...
2. Let func be ? GetV(V, P).
3. If func is either undefined or null, return undefined.
4. If IsCallable(func) is false, throw a TypeError exception.
...
--- |
2151 |
| yield-star-getiter-async-not-callable-number-throw.js |
---
description: Throws a TypeError on a non-callable [Symbol.asyncIterator] (number) (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
...
GetMethod ( V, P )
...
2. Let func be ? GetV(V, P).
3. If func is either undefined or null, return undefined.
4. If IsCallable(func) is false, throw a TypeError exception.
...
--- |
2145 |
| yield-star-getiter-async-not-callable-object-throw.js |
---
description: Throws a TypeError on a non-callable [Symbol.asyncIterator] (object) (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
...
GetMethod ( V, P )
...
2. Let func be ? GetV(V, P).
3. If func is either undefined or null, return undefined.
4. If IsCallable(func) is false, throw a TypeError exception.
...
--- |
2146 |
| yield-star-getiter-async-not-callable-string-throw.js |
---
description: Throws a TypeError on a non-callable [Symbol.asyncIterator] (string) (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
...
GetMethod ( V, P )
...
2. Let func be ? GetV(V, P).
3. If func is either undefined or null, return undefined.
4. If IsCallable(func) is false, throw a TypeError exception.
...
--- |
2146 |
| yield-star-getiter-async-not-callable-symbol-throw.js |
---
description: Throws a TypeError on a non-callable [Symbol.asyncIterator] (symbol) (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
...
GetMethod ( V, P )
...
2. Let func be ? GetV(V, P).
3. If func is either undefined or null, return undefined.
4. If IsCallable(func) is false, throw a TypeError exception.
...
--- |
2164 |
| yield-star-getiter-async-null-sync-get-abrupt.js |
---
description: Abrupt completion while getting @@iterator after null @@asyncIterator (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
b. If method is undefined,
i. Let syncMethod be ? GetMethod(obj, @@iterator).
...
GetMethod ( V, P )
...
2. Let func be ? GetV(V, P).
...
--- |
2151 |
| yield-star-getiter-async-returns-abrupt.js |
---
description: Abrupt completion while calling [Symbol.asyncIterator] (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
...
6. Let iterator be ? Call(method, obj).
...
--- |
1999 |
| yield-star-getiter-async-returns-boolean-throw.js |
---
description: Non object returned by [Symbol.asyncIterator]() - boolean (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
...
6. Let iterator be ? Call(method, obj).
7. If Type(iterator) is not Object, throw a TypeError exception.
...
--- |
2071 |
| yield-star-getiter-async-returns-null-throw.js |
---
description: Non object returned by [Symbol.asyncIterator]() - null (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
...
6. Let iterator be ? Call(method, obj).
7. If Type(iterator) is not Object, throw a TypeError exception.
...
--- |
2065 |
| yield-star-getiter-async-returns-number-throw.js |
---
description: Non object returned by [Symbol.asyncIterator]() - number (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
...
6. Let iterator be ? Call(method, obj).
7. If Type(iterator) is not Object, throw a TypeError exception.
...
--- |
2067 |
| yield-star-getiter-async-returns-string-throw.js |
---
description: Non object returned by [Symbol.asyncIterator]() - string (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
...
6. Let iterator be ? Call(method, obj).
7. If Type(iterator) is not Object, throw a TypeError exception.
...
--- |
2069 |
| yield-star-getiter-async-returns-symbol-throw.js |
---
description: Non object returned by [Symbol.asyncIterator]() - symbol (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
...
6. Let iterator be ? Call(method, obj).
7. If Type(iterator) is not Object, throw a TypeError exception.
...
--- |
2085 |
| yield-star-getiter-async-returns-undefined-throw.js |
---
description: Non object returned by [Symbol.asyncIterator]() - undefined (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
...
6. Let iterator be ? Call(method, obj).
7. If Type(iterator) is not Object, throw a TypeError exception.
...
--- |
2080 |
| yield-star-getiter-async-undefined-sync-get-abrupt.js |
---
description: Abrupt completion while getting @@iterator after undefined @@asyncIterator (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
b. If method is undefined,
i. Let syncMethod be ? GetMethod(obj, @@iterator).
...
GetMethod ( V, P )
...
2. Let func be ? GetV(V, P).
...
--- |
2166 |
| yield-star-getiter-sync-get-abrupt.js |
---
description: Abrupt completion while getting [Symbol.iterator] (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
b. If method is undefined,
i. Let syncMethod be ? GetMethod(obj, @@iterator).
...
GetMethod ( V, P )
...
2. Let func be ? GetV(V, P).
...
--- |
2004 |
| yield-star-getiter-sync-not-callable-boolean-throw.js |
---
description: Throws a TypeError on a non-callable [Symbol.iterator] (boolean) (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
b. If method is undefined,
i. Let syncMethod be ? GetMethod(obj, @@iterator).
...
GetMethod ( V, P )
...
2. Let func be ? GetV(V, P).
...
4. If IsCallable(func) is false, throw a TypeError exception.
...
--- |
2058 |
| yield-star-getiter-sync-not-callable-number-throw.js |
---
description: Throws a TypeError on a non-callable [Symbol.iterator] (number) (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
b. If method is undefined,
i. Let syncMethod be ? GetMethod(obj, @@iterator).
...
GetMethod ( V, P )
...
2. Let func be ? GetV(V, P).
...
4. If IsCallable(func) is false, throw a TypeError exception.
...
--- |
2052 |
| yield-star-getiter-sync-not-callable-object-throw.js |
---
description: Throws a TypeError on a non-callable [Symbol.iterator] (object) (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
b. If method is undefined,
i. Let syncMethod be ? GetMethod(obj, @@iterator).
...
GetMethod ( V, P )
...
2. Let func be ? GetV(V, P).
...
4. If IsCallable(func) is false, throw a TypeError exception.
...
--- |
2053 |
| yield-star-getiter-sync-not-callable-string-throw.js |
---
description: Throws a TypeError on a non-callable [Symbol.iterator] (string) (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
b. If method is undefined,
i. Let syncMethod be ? GetMethod(obj, @@iterator).
...
GetMethod ( V, P )
...
2. Let func be ? GetV(V, P).
...
4. If IsCallable(func) is false, throw a TypeError exception.
...
--- |
2053 |
| yield-star-getiter-sync-not-callable-symbol-throw.js |
---
description: Throws a TypeError on a non-callable [Symbol.iterator] (symbol) (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
b. If method is undefined,
i. Let syncMethod be ? GetMethod(obj, @@iterator).
...
GetMethod ( V, P )
...
2. Let func be ? GetV(V, P).
...
4. If IsCallable(func) is false, throw a TypeError exception.
...
--- |
2088 |
| yield-star-getiter-sync-returns-abrupt.js |
---
description: Abrupt completion while calling [Symbol.iterator] (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
i. Let syncMethod be ? GetMethod(obj, @@iterator).
ii. Let syncIterator be ? Call(syncMethod, obj).
...
--- |
1954 |
| yield-star-getiter-sync-returns-boolean-throw.js |
---
description: Non object returned by [Symbol.iterator]() - boolean (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
i. Let syncMethod be ? GetMethod(obj, @@iterator).
ii. Let syncIterator be ? Call(syncMethod, obj).
iii. Return ? CreateAsyncFromSyncIterator(syncIterator).
...
CreateAsyncFromSyncIterator(syncIterator)
1. If Type(syncIterator) is not Object, throw a TypeError exception.
...
--- |
2129 |
| yield-star-getiter-sync-returns-null-throw.js |
---
description: Non object returned by [Symbol.iterator]() - null (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
i. Let syncMethod be ? GetMethod(obj, @@iterator).
ii. Let syncIterator be ? Call(syncMethod, obj).
iii. Return ? CreateAsyncFromSyncIterator(syncIterator).
...
CreateAsyncFromSyncIterator(syncIterator)
1. If Type(syncIterator) is not Object, throw a TypeError exception.
...
--- |
2123 |
| yield-star-getiter-sync-returns-number-throw.js |
---
description: Non object returned by [Symbol.iterator]() - number (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
i. Let syncMethod be ? GetMethod(obj, @@iterator).
ii. Let syncIterator be ? Call(syncMethod, obj).
iii. Return ? CreateAsyncFromSyncIterator(syncIterator).
...
CreateAsyncFromSyncIterator(syncIterator)
1. If Type(syncIterator) is not Object, throw a TypeError exception.
...
--- |
2124 |
| yield-star-getiter-sync-returns-string-throw.js |
---
description: Non object returned by [Symbol.iterator]() - string (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
i. Let syncMethod be ? GetMethod(obj, @@iterator).
ii. Let syncIterator be ? Call(syncMethod, obj).
iii. Return ? CreateAsyncFromSyncIterator(syncIterator).
...
CreateAsyncFromSyncIterator(syncIterator)
1. If Type(syncIterator) is not Object, throw a TypeError exception.
...
--- |
2125 |
| yield-star-getiter-sync-returns-symbol-throw.js |
---
description: Non object returned by [Symbol.iterator]() - symbol (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
i. Let syncMethod be ? GetMethod(obj, @@iterator).
ii. Let syncIterator be ? Call(syncMethod, obj).
iii. Return ? CreateAsyncFromSyncIterator(syncIterator).
...
CreateAsyncFromSyncIterator(syncIterator)
1. If Type(syncIterator) is not Object, throw a TypeError exception.
...
--- |
2138 |
| yield-star-getiter-sync-returns-undefined-throw.js |
---
description: Non object returned by [Symbol.iterator]() - undefined (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
i. Let syncMethod be ? GetMethod(obj, @@iterator).
ii. Let syncIterator be ? Call(syncMethod, obj).
iii. Return ? CreateAsyncFromSyncIterator(syncIterator).
...
CreateAsyncFromSyncIterator(syncIterator)
1. If Type(syncIterator) is not Object, throw a TypeError exception.
...
--- |
2138 |
| yield-star-next-call-done-get-abrupt.js |
---
description: Abrupt completion while getting done (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
iii. If generatorKind is async, then set innerResult to
? Await(innerResult).
...
v. Let done be ? IteratorComplete(innerResult).
...
--- |
2015 |
| yield-star-next-call-returns-abrupt.js |
---
description: Abrupt completion while calling next (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
...
--- |
1780 |
| yield-star-next-call-value-get-abrupt.js |
---
description: Abrupt completion while getting value (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
iii. If generatorKind is async, then set innerResult to
? Await(innerResult).
...
vi. If done is true, then
1. Return ? IteratorValue(innerResult).
...
--- |
2069 |
| yield-star-next-get-abrupt.js |
---
description: Abrupt completion while getting next (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
...
--- |
1775 |
| yield-star-next-non-object-ignores-then.js |
---
description: If next() value is not-object, do not access respective then property (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
iii. If generatorKind is async, then set innerResult to
? Await(innerResult).
iv. If Type(innerResult) is not Object, throw a TypeError exception.
...
Await
...
2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
...
Promise Resolve Functions
...
7. If Type(resolution) is not Object, then
a. Return FulfillPromise(promise, resolution).
8. Let then be Get(resolution, "then").
...
--- |
2451 |
| yield-star-next-not-callable-boolean-throw.js |
---
description: Not-callable next value in a yield star position - boolean (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
...
--- |
1775 |
| yield-star-next-not-callable-null-throw.js |
---
description: Not-callable next value in a yield star position - null (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
...
--- |
1769 |
| yield-star-next-not-callable-number-throw.js |
---
description: Not-callable next value in a yield star position - number (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
...
--- |
1771 |
| yield-star-next-not-callable-object-throw.js |
---
description: Not-callable next value in a yield star position - object (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
...
--- |
1771 |
| yield-star-next-not-callable-string-throw.js |
---
description: Not-callable next value in a yield star position - string (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
...
--- |
1771 |
| yield-star-next-not-callable-symbol-throw.js |
---
description: Not-callable next value in a yield star position - symbol (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
...
--- |
1781 |
| yield-star-next-not-callable-undefined-throw.js |
---
description: Not-callable next value in a yield star position - undefined (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
...
--- |
1784 |
| yield-star-next-then-get-abrupt.js |
---
description: Return abrupt after getting next().then (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
iii. If generatorKind is async, then set innerResult to
? Await(innerResult).
...
Await
...
2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
...
Promise Resolve Functions
...
8. Let then be Get(resolution, "then").
...
10. Get thenAction be then.[[Value]].
...
12. Perform EnqueueJob("PromiseJobs", PromiseResolveThenableJob, « promise,
resolution, thenAction »).
...
--- |
2387 |
| yield-star-next-then-non-callable-boolean-fulfillpromise.js |
---
description: FulfillPromise if next().then is not-callable (boolean) (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
iii. If generatorKind is async, then set innerResult to
? Await(innerResult).
iv. If Type(innerResult) is not Object, throw a TypeError exception.
...
Await
...
2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
...
Promise Resolve Functions
...
7. If Type(resolution) is not Object, then
a. Return FulfillPromise(promise, resolution).
8. Let then be Get(resolution, "then").
...
11. If IsCallable(thenAction) is false, then
a. Return FulfillPromise(promise, resolution).
...
--- |
2293 |
| yield-star-next-then-non-callable-null-fulfillpromise.js |
---
description: FulfillPromise if next().then is not-callable (null) (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
iii. If generatorKind is async, then set innerResult to
? Await(innerResult).
iv. If Type(innerResult) is not Object, throw a TypeError exception.
...
Await
...
2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
...
Promise Resolve Functions
...
7. If Type(resolution) is not Object, then
a. Return FulfillPromise(promise, resolution).
8. Let then be Get(resolution, "then").
...
11. If IsCallable(thenAction) is false, then
a. Return FulfillPromise(promise, resolution).
...
--- |
2287 |
| yield-star-next-then-non-callable-number-fulfillpromise.js |
---
description: FulfillPromise if next().then is not-callable (number) (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
iii. If generatorKind is async, then set innerResult to
? Await(innerResult).
iv. If Type(innerResult) is not Object, throw a TypeError exception.
...
Await
...
2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
...
Promise Resolve Functions
...
7. If Type(resolution) is not Object, then
a. Return FulfillPromise(promise, resolution).
8. Let then be Get(resolution, "then").
...
11. If IsCallable(thenAction) is false, then
a. Return FulfillPromise(promise, resolution).
...
--- |
2289 |
| yield-star-next-then-non-callable-object-fulfillpromise.js |
---
description: FulfillPromise if next().then is not-callable (object) (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
iii. If generatorKind is async, then set innerResult to
? Await(innerResult).
iv. If Type(innerResult) is not Object, throw a TypeError exception.
...
Await
...
2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
...
Promise Resolve Functions
...
7. If Type(resolution) is not Object, then
a. Return FulfillPromise(promise, resolution).
8. Let then be Get(resolution, "then").
...
11. If IsCallable(thenAction) is false, then
a. Return FulfillPromise(promise, resolution).
...
--- |
2289 |
| yield-star-next-then-non-callable-string-fulfillpromise.js |
---
description: FulfillPromise if next().then is not-callable (string) (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
iii. If generatorKind is async, then set innerResult to
? Await(innerResult).
iv. If Type(innerResult) is not Object, throw a TypeError exception.
...
Await
...
2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
...
Promise Resolve Functions
...
7. If Type(resolution) is not Object, then
a. Return FulfillPromise(promise, resolution).
8. Let then be Get(resolution, "then").
...
11. If IsCallable(thenAction) is false, then
a. Return FulfillPromise(promise, resolution).
...
--- |
2289 |
| yield-star-next-then-non-callable-symbol-fulfillpromise.js |
---
description: FulfillPromise if next().then is not-callable (symbol) (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
iii. If generatorKind is async, then set innerResult to
? Await(innerResult).
iv. If Type(innerResult) is not Object, throw a TypeError exception.
...
Await
...
2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
...
Promise Resolve Functions
...
7. If Type(resolution) is not Object, then
a. Return FulfillPromise(promise, resolution).
8. Let then be Get(resolution, "then").
...
11. If IsCallable(thenAction) is false, then
a. Return FulfillPromise(promise, resolution).
...
--- |
2299 |
| yield-star-next-then-non-callable-undefined-fulfillpromise.js |
---
description: FulfillPromise if next().then is not-callable (undefined) (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
iii. If generatorKind is async, then set innerResult to
? Await(innerResult).
iv. If Type(innerResult) is not Object, throw a TypeError exception.
...
Await
...
2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
...
Promise Resolve Functions
...
7. If Type(resolution) is not Object, then
a. Return FulfillPromise(promise, resolution).
8. Let then be Get(resolution, "then").
...
11. If IsCallable(thenAction) is false, then
a. Return FulfillPromise(promise, resolution).
...
--- |
2302 |
| yield-star-next-then-returns-abrupt.js |
---
description: Return abrupt after calling next().then (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
iii. If generatorKind is async, then set innerResult to
? Await(innerResult).
...
Await
...
2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
...
Promise Resolve Functions
...
8. Let then be Get(resolution, "then").
...
10. Get thenAction be then.[[Value]].
...
12. Perform EnqueueJob("PromiseJobs", PromiseResolveThenableJob, « promise,
resolution, thenAction »).
...
--- |
2387 |
| yield-star-sync-next.js |
---
description: execution order for yield* with sync iterator and next() (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, async-iteration, Symbol.asyncIterator]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
2. Let value be ? GetValue(exprRef).
3. Let generatorKind be ! GetGeneratorKind().
4. Let iterator be ? GetIterator(value, generatorKind).
5. Let received be NormalCompletion(undefined).
6. Repeat
a. If received.[[Type]] is normal, then
i. Let innerResult be ? IteratorNext(iterator, received.[[Value]]).
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
iii. If generatorKind is async, then set innerResult to
? Await(innerResult).
...
v. Let done be ? IteratorComplete(innerResult).
vi. If done is true, then
1. Return ? IteratorValue(innerResult).
vii. Let received be GeneratorYield(innerResult).
...
GetIterator ( obj [ , hint ] )
...
3. If hint is async,
a. Set method to ? GetMethod(obj, @@asyncIterator).
b. If method is undefined,
i. Let syncMethod be ? GetMethod(obj, @@iterator).
ii. Let syncIterator be ? Call(syncMethod, obj).
iii. Return ? CreateAsyncFromSyncIterator(syncIterator).
...
%AsyncFromSyncIteratorPrototype%.next ( value )
...
5. Let nextResult be IteratorNext(syncIterator, value).
...
7. Let nextValue be IteratorValue(nextResult).
...
9. Let nextDone be IteratorComplete(nextResult).
...
12. Perform ! Call(valueWrapperCapability.[[Resolve]], undefined,
« nextValue »).
...
14. Set onFulfilled.[[Done]] to nextDone.
15. Perform ! PerformPromiseThen(valueWrapperCapability.[[Promise]],
onFulfilled, undefined, promiseCapability).
...
Async Iterator Value Unwrap Functions
1. Return ! CreateIterResultObject(value, F.[[Done]]).
--- |
6954 |
| yield-star-sync-return.js |
---
description: execution order for yield* with sync iterator and return() (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, async-iteration, Symbol.asyncIterator]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
...
c. Else,
i. Assert: received.[[Type]] is return.
ii. Let return be ? GetMethod(iterator, "return").
iii. If return is undefined, return Completion(received).
iv. Let innerReturnResult be ? Call(return, iterator,
« received.[[Value]] »).
v. If generatorKind is async, then set innerReturnResult to
? Await(innerReturnResult).
...
vii. Let done be ? IteratorComplete(innerReturnResult).
viii. If done is true, then
1. Let value be ? IteratorValue(innerReturnResult).
2. Return Completion{[[Type]]: return, [[Value]]: value,
[[Target]]: empty}.
ix. Let received be GeneratorYield(innerResult).
%AsyncFromSyncIteratorPrototype%.return ( value )
5. Let return be GetMethod(syncIterator, "return").
...
...
8. Let returnResult be Call(return, syncIterator, « value »).
...
11. Let returnValue be IteratorValue(returnResult).
..
13. Let returnDone be IteratorComplete(returnResult).
...
16. Perform ! Call(valueWrapperCapability.[[Resolve]], undefined, « returnValue »).
...
18. Set onFulfilled.[[Done]] to returnDone.
19. Perform ! PerformPromiseThen(valueWrapperCapability.[[Promise]],
onFulfilled, undefined, promiseCapability).
...
--- |
6190 |
| yield-star-sync-throw.js |
---
description: execution order for yield* with sync iterator and throw() (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
ClassElement :
MethodDefinition
MethodDefinition :
AsyncGeneratorMethod
Async Generator Function Definitions
AsyncGeneratorMethod :
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
...
b. Else if received.[[Type]] is throw, then
i. Let throw be ? GetMethod(iterator, "throw").
ii. If throw is not undefined, then
1. Let innerResult be ? Call(throw, iterator, « received.[[Value]] »).
2. If generatorKind is async, then set innerResult to
? Await(innerResult).
...
5. Let done be ? IteratorComplete(innerResult).
6. If done is true, then
a. Return ? IteratorValue(innerResult).
7. Let received be GeneratorYield(innerResult).
...
%AsyncFromSyncIteratorPrototype%.throw ( value )
...
5. Let throw be GetMethod(syncIterator, "throw").
...
8. Let throwResult be Call(throw, syncIterator, « value »).
...
11. Let throwValue be IteratorValue(throwResult).
...
13. Let throwDone be IteratorComplete(throwResult).
...
16. Perform ! Call(valueWrapperCapability.[[Resolve]], undefined,
« throwValue »).
...
18. Set onFulfilled.[[Done]] to throwDone.
19. Perform ! PerformPromiseThen(valueWrapperCapability.[[Promise]],
onFulfilled, undefined, promiseCapability).
...
--- |
6160 |