| args-trailing-comma-multiple.js |
---
description: A trailing comma should not increase the arguments.length, using multiple args (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
Trailing comma in the arguments list
12.3 Left-Hand-Side Expressions
Arguments[Yield, Await] : ( ArgumentList[?Yield, ?Await] , )
--- |
1274 |
- |
| args-trailing-comma-null.js |
---
description: A trailing comma after null should not increase the arguments.length (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
Trailing comma in the arguments list
12.3 Left-Hand-Side Expressions
Arguments[Yield, Await] : ( ArgumentList[?Yield, ?Await] , )
--- |
1256 |
- |
| args-trailing-comma-single-args.js |
---
description: A trailing comma should not increase the arguments.length, using a single arg (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
Trailing comma in the arguments list
12.3 Left-Hand-Side Expressions
Arguments[Yield, Await] : ( ArgumentList[?Yield, ?Await] , )
--- |
1226 |
- |
| args-trailing-comma-undefined.js |
---
description: A trailing comma after undefined should not increase the arguments.length (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
Trailing comma in the arguments list
12.3 Left-Hand-Side Expressions
Arguments[Yield, Await] : ( ArgumentList[?Yield, ?Await] , )
--- |
1276 |
- |
| 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 Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
BindingIdentifier : Identifier
It is a Syntax Error if this production has a [Await] parameter and
StringValue of Identifier is "await".
--- |
950 |
- |
| 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 Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
BindingIdentifier : Identifier
It is a Syntax Error if this production has a [Await] parameter and
StringValue of Identifier is "await".
--- |
937 |
- |
| 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 Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
IdentifierReference : Identifier
It is a Syntax Error if this production has a [Await] parameter and
StringValue of Identifier is "await".
--- |
958 |
- |
| 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 Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
IdentifierReference : Identifier
It is a Syntax Error if this production has a [Await] parameter and
StringValue of Identifier is "await".
--- |
945 |
- |
| 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 Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
LabelIdentifier : Identifier
It is a Syntax Error if this production has a [Await] parameter and
StringValue of Identifier is "await".
--- |
942 |
- |
| 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 Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
LabelIdentifier : Identifier
It is a Syntax Error if this production has a [Await] parameter and
StringValue of Identifier is "await".
--- |
929 |
- |
| dflt-params-abrupt.js |
---
description: Abrupt completion returned by evaluation of initializer (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [default-parameters, async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, 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.
--- |
1433 |
- |
| dflt-params-arg-val-not-undefined.js |
---
description: Use of initializer when argument value is not `undefined` (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [default-parameters, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, 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.
[...]
--- |
2331 |
- |
| dflt-params-arg-val-undefined.js |
---
description: Use of initializer when argument value is `undefined` (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [default-parameters, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, 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.
[...]
--- |
1600 |
- |
| dflt-params-duplicates.js |
---
description: It is a Syntax Error if BoundNames of FormalParameters contains any duplicate elements. (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [default-parameters, async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, 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.
--- |
1313 |
- |
| dflt-params-ref-later.js |
---
description: Referencing a parameter that occurs later in the ParameterList (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [default-parameters, async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, 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.
--- |
1416 |
- |
| dflt-params-ref-prior.js |
---
description: Referencing a parameter that occurs earlier in the ParameterList (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [default-parameters, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, 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.
--- |
1633 |
- |
| dflt-params-ref-self.js |
---
description: Referencing a parameter from within its own initializer (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [default-parameters, async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, 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.
--- |
1405 |
- |
| dflt-params-rest.js |
---
description: RestParameter does not support an initializer (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [default-parameters, async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, 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]
--- |
1132 |
- |
| dflt-params-trailing-comma.js |
---
description: A trailing comma should not increase the respective length, using default parameters (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
Trailing comma in the parameters list
14.1 Function Definitions
FormalParameters[Yield, Await] : FormalParameterList[?Yield, ?Await] ,
--- |
1301 |
- |
| dstr-ary-init-iter-close.js |
---
description: Iterator is closed when not exhausted by pattern evaluation (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
[...]
4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
result).
[...]
--- |
1419 |
- |
| dstr-ary-init-iter-get-err.js |
---
description: Abrupt completion returned by GetIterator (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [Symbol.iterator, async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
1. Let iterator be GetIterator(value).
2. ReturnIfAbrupt(iterator).
--- |
1061 |
- |
| dstr-ary-init-iter-no-close.js |
---
description: Iterator is not closed when exhausted by pattern evaluation (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
[...]
4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
result).
[...]
--- |
1421 |
- |
| dstr-ary-name-iter-val.js |
---
description: SingleNameBinding with normal value iteration (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
[...]
i. Let v be IteratorValue(next).
ii. If v is an abrupt completion, set
iteratorRecord.[[done]] to true.
iii. ReturnIfAbrupt(v).
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
1735 |
- |
| dstr-ary-ptrn-elem-ary-elem-init.js |
---
description: BindingElement with array binding pattern and initializer is used (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1508 |
- |
| dstr-ary-ptrn-elem-ary-elem-iter.js |
---
description: BindingElement with array binding pattern and initializer is not used (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
[...]
e. Else,
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1479 |
- |
| dstr-ary-ptrn-elem-ary-elision-init.js |
---
description: BindingElement with array binding pattern and initializer is used (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [generators, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1583 |
- |
| dstr-ary-ptrn-elem-ary-elision-iter.js |
---
description: BindingElement with array binding pattern and initializer is not used (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [generators, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
[...]
e. Else,
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1488 |
- |
| dstr-ary-ptrn-elem-ary-empty-init.js |
---
description: BindingElement with array binding pattern and initializer is used (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [generators, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1625 |
- |
| dstr-ary-ptrn-elem-ary-empty-iter.js |
---
description: BindingElement with array binding pattern and initializer is not used (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
[...]
e. Else,
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1466 |
- |
| dstr-ary-ptrn-elem-ary-rest-init.js |
---
description: BindingElement with array binding pattern and initializer is used (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1630 |
- |
| dstr-ary-ptrn-elem-ary-rest-iter.js |
---
description: BindingElement with array binding pattern and initializer is not used (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
[...]
e. Else,
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1677 |
- |
| dstr-ary-ptrn-elem-ary-val-null.js |
---
description: Nested array destructuring with a null value (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPattern Initializeropt
1. If iteratorRecord.[[done]] is false, then
[...]
e. Else
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
1. Let iterator be GetIterator(value).
2. ReturnIfAbrupt(iterator).
--- |
1348 |
- |
| dstr-ary-ptrn-elem-id-init-exhausted.js |
---
description: Destructuring initializer with an exhausted iterator (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
5. If iteratorRecord.[[done]] is true, let v be undefined.
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
1435 |
- |
| dstr-ary-ptrn-elem-id-init-fn-name-arrow.js |
---
description: SingleNameBinding does assign name to arrow functions (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
1503 |
- |
| dstr-ary-ptrn-elem-id-init-fn-name-class.js |
---
description: SingleNameBinding assigns `name` to "anonymous" classes (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
1640 |
- |
| dstr-ary-ptrn-elem-id-init-fn-name-cover.js |
---
description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
1616 |
- |
| dstr-ary-ptrn-elem-id-init-fn-name-fn.js |
---
description: SingleNameBinding assigns name to "anonymous" functions (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
1562 |
- |
| dstr-ary-ptrn-elem-id-init-fn-name-gen.js |
---
description: SingleNameBinding assigns name to "anonymous" generator functions (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [generators, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
1594 |
- |
| dstr-ary-ptrn-elem-id-init-hole.js |
---
description: Destructuring initializer with a "hole" (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...] 6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
[...]
7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
--- |
1368 |
- |
| dstr-ary-ptrn-elem-id-init-skipped.js |
---
description: Destructuring initializer is not evaluated when value is not `undefined` (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
1528 |
- |
| dstr-ary-ptrn-elem-id-init-throws.js |
---
description: Destructuring initializer returns an abrupt completion (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
--- |
1190 |
- |
| dstr-ary-ptrn-elem-id-init-undef.js |
---
description: Destructuring initializer with an undefined value (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
1374 |
- |
| dstr-ary-ptrn-elem-id-init-unresolvable.js |
---
description: Destructuring initializer is an unresolvable reference (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
6.2.3.1 GetValue (V)
1. ReturnIfAbrupt(V).
2. If Type(V) is not Reference, return V.
3. Let base be GetBase(V).
4. If IsUnresolvableReference(V), throw a ReferenceError exception.
--- |
1370 |
- |
| dstr-ary-ptrn-elem-id-iter-complete.js |
---
description: SingleNameBinding when value iteration completes (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
[...]
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
1522 |
- |
| dstr-ary-ptrn-elem-id-iter-done.js |
---
description: SingleNameBinding when value iteration was completed previously (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
[...]
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
1275 |
- |
| dstr-ary-ptrn-elem-id-iter-step-err.js |
---
description: Error forwarding when IteratorStep returns an abrupt completion (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [Symbol.iterator, async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
--- |
1316 |
- |
| dstr-ary-ptrn-elem-id-iter-val-err.js |
---
description: Error forwarding when IteratorValue returns an abrupt completion (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [Symbol.iterator, async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
i. Let v be IteratorValue(next).
ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
true.
iii. ReturnIfAbrupt(v).
--- |
1680 |
- |
| dstr-ary-ptrn-elem-id-iter-val.js |
---
description: SingleNameBinding when value iteration was completed previously (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
[...]
i. Let v be IteratorValue(next).
ii. If v is an abrupt completion, set
iteratorRecord.[[done]] to true.
iii. ReturnIfAbrupt(v).
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
1761 |
- |
| dstr-ary-ptrn-elem-obj-id-init.js |
---
description: BindingElement with object binding pattern and initializer is used (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1526 |
- |
| dstr-ary-ptrn-elem-obj-id.js |
---
description: BindingElement with object binding pattern and initializer is not used (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1548 |
- |
| dstr-ary-ptrn-elem-obj-prop-id-init.js |
---
description: BindingElement with object binding pattern and initializer is used (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1721 |
- |
| dstr-ary-ptrn-elem-obj-prop-id.js |
---
description: BindingElement with object binding pattern and initializer is not used (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1746 |
- |
| dstr-ary-ptrn-elem-obj-val-null.js |
---
description: Nested object destructuring with a null value (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPattern Initializeropt
1. If iteratorRecord.[[done]] is false, then
[...]
e. Else
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ObjectBindingPattern
1. Let valid be RequireObjectCoercible(value).
2. ReturnIfAbrupt(valid).
--- |
1357 |
- |
| dstr-ary-ptrn-elem-obj-val-undef.js |
---
description: Nested object destructuring with a value of `undefined` (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPattern Initializeropt
1. If iteratorRecord.[[done]] is false, then
[...]
e. Else
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ObjectBindingPattern
1. Let valid be RequireObjectCoercible(value).
2. ReturnIfAbrupt(valid).
--- |
1364 |
- |
| dstr-ary-ptrn-elision-exhausted.js |
---
description: Elision accepts exhausted iterator (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [generators, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elision ]
1. Return the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
as the argument.
12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
Elision : ,
1. If iteratorRecord.[[done]] is false, then
[...]
2. Return NormalCompletion(empty).
--- |
1392 |
- |
| dstr-ary-ptrn-elision-step-err.js |
---
description: Elision advances iterator and forwards abrupt completions (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [generators, async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elision ]
1. Return the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
as the argument.
12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
Elision : ,
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
--- |
1559 |
- |
| dstr-ary-ptrn-elision.js |
---
description: Elision advances iterator (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [generators, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elision ]
1. Return the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
as the argument.
12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
Elision : ,
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
2. Return NormalCompletion(empty).
--- |
1705 |
- |
| dstr-ary-ptrn-empty.js |
---
description: No iteration occurs for an "empty" array binding pattern (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [generators, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ ]
1. Return NormalCompletion(empty).
--- |
1153 |
- |
| dstr-ary-ptrn-rest-ary-elem.js |
---
description: Rest element containing an array BindingElementList pattern (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
[...]
i. Let v be IteratorValue(next).
ii. If v is an abrupt completion, set
iteratorRecord.[[done]] to true.
iii. ReturnIfAbrupt(v).
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
2140 |
- |
| dstr-ary-ptrn-rest-ary-elision.js |
---
description: Rest element containing an elision (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [generators, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elision ]
1. Return the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
as the argument.
12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
Elision : ,
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
2. Return NormalCompletion(empty).
--- |
2109 |
- |
| dstr-ary-ptrn-rest-ary-empty.js |
---
description: Rest element containing an "empty" array pattern (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [generators, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ ]
1. Return NormalCompletion(empty).
--- |
1540 |
- |
| dstr-ary-ptrn-rest-ary-rest.js |
---
description: Rest element containing a rest element (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
--- |
1491 |
- |
| dstr-ary-ptrn-rest-id-elision-next-err.js |
---
description: Rest element following elision elements (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [generators, async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elisionopt BindingRestElement ]
1. If Elision is present, then
a. Let status be the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with
iteratorRecord as the argument.
b. ReturnIfAbrupt(status).
2. Return the result of performing IteratorBindingInitialization for
BindingRestElement with iteratorRecord and environment as arguments.
--- |
1372 |
- |
| dstr-ary-ptrn-rest-id-elision.js |
---
description: Rest element following elision elements (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elisionopt BindingRestElement ]
1. If Elision is present, then
a. Let status be the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with
iteratorRecord as the argument.
b. ReturnIfAbrupt(status).
2. Return the result of performing IteratorBindingInitialization for
BindingRestElement with iteratorRecord and environment as arguments.
--- |
1618 |
- |
| dstr-ary-ptrn-rest-id-exhausted.js |
---
description: RestElement applied to an exhausted iterator (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingIdentifier
1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
environment).
2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
[...]
b. If iteratorRecord.[[done]] is true, then
i. If environment is undefined, return PutValue(lhs, A).
ii. Return InitializeReferencedBinding(lhs, A).
--- |
1457 |
- |
| dstr-ary-ptrn-rest-id-iter-step-err.js |
---
description: Error forwarding when IteratorStep returns an abrupt completion (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [generators, async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingIdentifier
1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
environment).
2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
a. If iteratorRecord.[[done]] is false,
i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
true.
iii. ReturnIfAbrupt(next).
--- |
1600 |
- |
| dstr-ary-ptrn-rest-id-iter-val-err.js |
---
description: Error forwarding when IteratorValue returns an abrupt completion (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [Symbol.iterator, async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingIdentifier
1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
environment).
2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
[...]
c. Let nextValue be IteratorValue(next).
d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
true.
e. ReturnIfAbrupt(nextValue).
--- |
1551 |
- |
| dstr-ary-ptrn-rest-id.js |
---
description: Lone rest element (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingIdentifier
[...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
[...]
f. Let status be CreateDataProperty(A, ToString (n), nextValue).
[...]
--- |
1339 |
- |
| dstr-ary-ptrn-rest-init-ary.js |
---
description: Reset element (nested array pattern) does not support initializer (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
negative:
phase: parse
type: SyntaxError
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1286 |
- |
| dstr-ary-ptrn-rest-init-id.js |
---
description: Reset element (identifier) does not support initializer (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
negative:
phase: parse
type: SyntaxError
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1271 |
- |
| dstr-ary-ptrn-rest-init-obj.js |
---
description: Reset element (nested object pattern) does not support initializer (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
negative:
phase: parse
type: SyntaxError
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1287 |
- |
| dstr-ary-ptrn-rest-not-final-ary.js |
---
description: Rest element (array binding pattern) may not be followed by any element (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
negative:
phase: parse
type: SyntaxError
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1300 |
- |
| dstr-ary-ptrn-rest-not-final-id.js |
---
description: Rest element (identifier) may not be followed by any element (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
negative:
phase: parse
type: SyntaxError
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1286 |
- |
| dstr-ary-ptrn-rest-not-final-obj.js |
---
description: Rest element (object binding pattern) may not be followed by any element (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
negative:
phase: parse
type: SyntaxError
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1303 |
- |
| dstr-ary-ptrn-rest-obj-id.js |
---
description: Rest element containing an object binding pattern (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
--- |
1331 |
- |
| dstr-ary-ptrn-rest-obj-prop-id.js |
---
description: Rest element containing an object binding pattern (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
--- |
1578 |
- |
| dstr-dflt-ary-init-iter-close.js |
---
description: Iterator is closed when not exhausted by pattern evaluation (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
[...]
4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
result).
[...]
--- |
1447 |
- |
| dstr-dflt-ary-init-iter-get-err.js |
---
description: Abrupt completion returned by GetIterator (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [Symbol.iterator, async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
1. Let iterator be GetIterator(value).
2. ReturnIfAbrupt(iterator).
--- |
1089 |
- |
| dstr-dflt-ary-init-iter-no-close.js |
---
description: Iterator is not closed when exhausted by pattern evaluation (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
[...]
4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
result).
[...]
--- |
1449 |
- |
| dstr-dflt-ary-name-iter-val.js |
---
description: SingleNameBinding with normal value iteration (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
[...]
i. Let v be IteratorValue(next).
ii. If v is an abrupt completion, set
iteratorRecord.[[done]] to true.
iii. ReturnIfAbrupt(v).
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
1763 |
- |
| dstr-dflt-ary-ptrn-elem-ary-elem-init.js |
---
description: BindingElement with array binding pattern and initializer is used (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1536 |
- |
| dstr-dflt-ary-ptrn-elem-ary-elem-iter.js |
---
description: BindingElement with array binding pattern and initializer is not used (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
[...]
e. Else,
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1507 |
- |
| dstr-dflt-ary-ptrn-elem-ary-elision-init.js |
---
description: BindingElement with array binding pattern and initializer is used (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [generators, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1611 |
- |
| dstr-dflt-ary-ptrn-elem-ary-elision-iter.js |
---
description: BindingElement with array binding pattern and initializer is not used (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [generators, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
[...]
e. Else,
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1516 |
- |
| dstr-dflt-ary-ptrn-elem-ary-empty-init.js |
---
description: BindingElement with array binding pattern and initializer is used (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [generators, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1653 |
- |
| dstr-dflt-ary-ptrn-elem-ary-empty-iter.js |
---
description: BindingElement with array binding pattern and initializer is not used (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
[...]
e. Else,
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1494 |
- |
| dstr-dflt-ary-ptrn-elem-ary-rest-init.js |
---
description: BindingElement with array binding pattern and initializer is used (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1658 |
- |
| dstr-dflt-ary-ptrn-elem-ary-rest-iter.js |
---
description: BindingElement with array binding pattern and initializer is not used (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
[...]
e. Else,
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1705 |
- |
| dstr-dflt-ary-ptrn-elem-ary-val-null.js |
---
description: Nested array destructuring with a null value (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPattern Initializeropt
1. If iteratorRecord.[[done]] is false, then
[...]
e. Else
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
1. Let iterator be GetIterator(value).
2. ReturnIfAbrupt(iterator).
--- |
1376 |
- |
| dstr-dflt-ary-ptrn-elem-id-init-exhausted.js |
---
description: Destructuring initializer with an exhausted iterator (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
5. If iteratorRecord.[[done]] is true, let v be undefined.
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
1463 |
- |
| dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js |
---
description: SingleNameBinding does assign name to arrow functions (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
1531 |
- |
| dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js |
---
description: SingleNameBinding assigns `name` to "anonymous" classes (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
1668 |
- |
| dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js |
---
description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
1644 |
- |
| dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js |
---
description: SingleNameBinding assigns name to "anonymous" functions (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
1590 |
- |
| dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js |
---
description: SingleNameBinding assigns name to "anonymous" generator functions (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [generators, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
1622 |
- |
| dstr-dflt-ary-ptrn-elem-id-init-hole.js |
---
description: Destructuring initializer with a "hole" (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...] 6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
[...]
7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
--- |
1396 |
- |
| dstr-dflt-ary-ptrn-elem-id-init-skipped.js |
---
description: Destructuring initializer is not evaluated when value is not `undefined` (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
1556 |
- |
| dstr-dflt-ary-ptrn-elem-id-init-throws.js |
---
description: Destructuring initializer returns an abrupt completion (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
--- |
1218 |
- |
| dstr-dflt-ary-ptrn-elem-id-init-undef.js |
---
description: Destructuring initializer with an undefined value (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
--- |
1402 |
- |
| dstr-dflt-ary-ptrn-elem-id-init-unresolvable.js |
---
description: Destructuring initializer is an unresolvable reference (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
6.2.3.1 GetValue (V)
1. ReturnIfAbrupt(V).
2. If Type(V) is not Reference, return V.
3. Let base be GetBase(V).
4. If IsUnresolvableReference(V), throw a ReferenceError exception.
--- |
1398 |
- |
| dstr-dflt-ary-ptrn-elem-id-iter-complete.js |
---
description: SingleNameBinding when value iteration completes (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
[...]
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
1550 |
- |
| dstr-dflt-ary-ptrn-elem-id-iter-done.js |
---
description: SingleNameBinding when value iteration was completed previously (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
[...]
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
1303 |
- |
| dstr-dflt-ary-ptrn-elem-id-iter-step-err.js |
---
description: Error forwarding when IteratorStep returns an abrupt completion (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [Symbol.iterator, async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
--- |
1344 |
- |
| dstr-dflt-ary-ptrn-elem-id-iter-val-err.js |
---
description: Error forwarding when IteratorValue returns an abrupt completion (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [Symbol.iterator, async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
i. Let v be IteratorValue(next).
ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
true.
iii. ReturnIfAbrupt(v).
--- |
1708 |
- |
| dstr-dflt-ary-ptrn-elem-id-iter-val.js |
---
description: SingleNameBinding when value iteration was completed previously (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
[...]
i. Let v be IteratorValue(next).
ii. If v is an abrupt completion, set
iteratorRecord.[[done]] to true.
iii. ReturnIfAbrupt(v).
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
1789 |
- |
| dstr-dflt-ary-ptrn-elem-obj-id-init.js |
---
description: BindingElement with object binding pattern and initializer is used (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1554 |
- |
| dstr-dflt-ary-ptrn-elem-obj-id.js |
---
description: BindingElement with object binding pattern and initializer is not used (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1576 |
- |
| dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js |
---
description: BindingElement with object binding pattern and initializer is used (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1749 |
- |
| dstr-dflt-ary-ptrn-elem-obj-prop-id.js |
---
description: BindingElement with object binding pattern and initializer is not used (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
--- |
1774 |
- |
| dstr-dflt-ary-ptrn-elem-obj-val-null.js |
---
description: Nested object destructuring with a null value (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPattern Initializeropt
1. If iteratorRecord.[[done]] is false, then
[...]
e. Else
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ObjectBindingPattern
1. Let valid be RequireObjectCoercible(value).
2. ReturnIfAbrupt(valid).
--- |
1385 |
- |
| dstr-dflt-ary-ptrn-elem-obj-val-undef.js |
---
description: Nested object destructuring with a value of `undefined` (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPattern Initializeropt
1. If iteratorRecord.[[done]] is false, then
[...]
e. Else
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ObjectBindingPattern
1. Let valid be RequireObjectCoercible(value).
2. ReturnIfAbrupt(valid).
--- |
1392 |
- |
| dstr-dflt-ary-ptrn-elision-exhausted.js |
---
description: Elision accepts exhausted iterator (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [generators, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elision ]
1. Return the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
as the argument.
12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
Elision : ,
1. If iteratorRecord.[[done]] is false, then
[...]
2. Return NormalCompletion(empty).
--- |
1420 |
- |
| dstr-dflt-ary-ptrn-elision-step-err.js |
---
description: Elision advances iterator and forwards abrupt completions (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [generators, async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elision ]
1. Return the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
as the argument.
12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
Elision : ,
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
--- |
1587 |
- |
| dstr-dflt-ary-ptrn-elision.js |
---
description: Elision advances iterator (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [generators, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elision ]
1. Return the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
as the argument.
12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
Elision : ,
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
2. Return NormalCompletion(empty).
--- |
1733 |
- |
| dstr-dflt-ary-ptrn-empty.js |
---
description: No iteration occurs for an "empty" array binding pattern (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [generators, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ ]
1. Return NormalCompletion(empty).
--- |
1181 |
- |
| dstr-dflt-ary-ptrn-rest-ary-elem.js |
---
description: Rest element containing an array BindingElementList pattern (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
[...]
i. Let v be IteratorValue(next).
ii. If v is an abrupt completion, set
iteratorRecord.[[done]] to true.
iii. ReturnIfAbrupt(v).
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
2168 |
- |
| dstr-dflt-ary-ptrn-rest-ary-elision.js |
---
description: Rest element containing an elision (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [generators, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elision ]
1. Return the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
as the argument.
12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
Elision : ,
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
2. Return NormalCompletion(empty).
--- |
2137 |
- |
| dstr-dflt-ary-ptrn-rest-ary-empty.js |
---
description: Rest element containing an "empty" array pattern (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [generators, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ ]
1. Return NormalCompletion(empty).
--- |
1568 |
- |
| dstr-dflt-ary-ptrn-rest-ary-rest.js |
---
description: Rest element containing a rest element (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
--- |
1519 |
- |
| dstr-dflt-ary-ptrn-rest-id-elision-next-err.js |
---
description: Rest element following elision elements (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [generators, async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elisionopt BindingRestElement ]
1. If Elision is present, then
a. Let status be the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with
iteratorRecord as the argument.
b. ReturnIfAbrupt(status).
2. Return the result of performing IteratorBindingInitialization for
BindingRestElement with iteratorRecord and environment as arguments.
--- |
1400 |
- |
| dstr-dflt-ary-ptrn-rest-id-elision.js |
---
description: Rest element following elision elements (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elisionopt BindingRestElement ]
1. If Elision is present, then
a. Let status be the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with
iteratorRecord as the argument.
b. ReturnIfAbrupt(status).
2. Return the result of performing IteratorBindingInitialization for
BindingRestElement with iteratorRecord and environment as arguments.
--- |
1646 |
- |
| dstr-dflt-ary-ptrn-rest-id-exhausted.js |
---
description: RestElement applied to an exhausted iterator (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingIdentifier
1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
environment).
2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
[...]
b. If iteratorRecord.[[done]] is true, then
i. If environment is undefined, return PutValue(lhs, A).
ii. Return InitializeReferencedBinding(lhs, A).
--- |
1485 |
- |
| dstr-dflt-ary-ptrn-rest-id-iter-step-err.js |
---
description: Error forwarding when IteratorStep returns an abrupt completion (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [generators, async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingIdentifier
1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
environment).
2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
a. If iteratorRecord.[[done]] is false,
i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
true.
iii. ReturnIfAbrupt(next).
--- |
1628 |
- |
| dstr-dflt-ary-ptrn-rest-id-iter-val-err.js |
---
description: Error forwarding when IteratorValue returns an abrupt completion (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [Symbol.iterator, async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingIdentifier
1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
environment).
2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
[...]
c. Let nextValue be IteratorValue(next).
d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
true.
e. ReturnIfAbrupt(nextValue).
--- |
1579 |
- |
| dstr-dflt-ary-ptrn-rest-id.js |
---
description: Lone rest element (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingIdentifier
[...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
[...]
f. Let status be CreateDataProperty(A, ToString (n), nextValue).
[...]
--- |
1367 |
- |
| dstr-dflt-ary-ptrn-rest-init-ary.js |
---
description: Reset element (nested array pattern) does not support initializer (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
negative:
phase: parse
type: SyntaxError
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1314 |
- |
| dstr-dflt-ary-ptrn-rest-init-id.js |
---
description: Reset element (identifier) does not support initializer (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
negative:
phase: parse
type: SyntaxError
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1299 |
- |
| dstr-dflt-ary-ptrn-rest-init-obj.js |
---
description: Reset element (nested object pattern) does not support initializer (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
negative:
phase: parse
type: SyntaxError
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1315 |
- |
| dstr-dflt-ary-ptrn-rest-not-final-ary.js |
---
description: Rest element (array binding pattern) may not be followed by any element (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
negative:
phase: parse
type: SyntaxError
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1328 |
- |
| dstr-dflt-ary-ptrn-rest-not-final-id.js |
---
description: Rest element (identifier) may not be followed by any element (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
negative:
phase: parse
type: SyntaxError
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1314 |
- |
| dstr-dflt-ary-ptrn-rest-not-final-obj.js |
---
description: Rest element (object binding pattern) may not be followed by any element (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
negative:
phase: parse
type: SyntaxError
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
--- |
1331 |
- |
| dstr-dflt-ary-ptrn-rest-obj-id.js |
---
description: Rest element containing an object binding pattern (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
--- |
1359 |
- |
| dstr-dflt-ary-ptrn-rest-obj-prop-id.js |
---
description: Rest element containing an object binding pattern (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
--- |
1606 |
- |
| dstr-dflt-obj-init-null.js |
---
description: Value specifed for object binding pattern must be object coercible (null) (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
Runtime Semantics: BindingInitialization
ObjectBindingPattern : { }
1. Return NormalCompletion(empty).
--- |
952 |
- |
| dstr-dflt-obj-init-undefined.js |
---
description: Value specifed for object binding pattern must be object coercible (undefined) (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
Runtime Semantics: BindingInitialization
ObjectBindingPattern : { }
1. Return NormalCompletion(empty).
--- |
967 |
- |
| dstr-dflt-obj-ptrn-empty.js |
---
description: No property access occurs for an "empty" object binding pattern (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
Runtime Semantics: BindingInitialization
ObjectBindingPattern : { }
1. Return NormalCompletion(empty).
--- |
1207 |
- |
| dstr-dflt-obj-ptrn-id-get-value-err.js |
---
description: Error thrown when accessing the corresponding property of the value object (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. Let v be GetV(value, propertyName).
5. ReturnIfAbrupt(v).
--- |
1191 |
- |
| dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js |
---
description: SingleNameBinding assigns `name` to arrow functions (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
--- |
1476 |
- |
| dstr-dflt-obj-ptrn-id-init-fn-name-class.js |
---
description: SingleNameBinding assigns `name` to "anonymous" classes (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
--- |
1615 |
- |
| dstr-dflt-obj-ptrn-id-init-fn-name-cover.js |
---
description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
--- |
1590 |
- |
| dstr-dflt-obj-ptrn-id-init-fn-name-fn.js |
---
description: SingleNameBinding assigns name to "anonymous" functions (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
--- |
1537 |
- |
| dstr-dflt-obj-ptrn-id-init-fn-name-gen.js |
---
description: SingleNameBinding assigns name to "anonymous" generator functions (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [generators, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
--- |
1569 |
- |
| dstr-dflt-obj-ptrn-id-init-skipped.js |
---
description: Destructuring initializer is not evaluated when value is not `undefined` (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
[...]
--- |
1462 |
- |
| dstr-dflt-obj-ptrn-id-init-throws.js |
---
description: Error thrown when evaluating the initializer (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
--- |
1210 |
- |
| dstr-dflt-obj-ptrn-id-init-unresolvable.js |
---
description: Destructuring initializer is an unresolvable reference (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
6.2.3.1 GetValue (V)
1. ReturnIfAbrupt(V).
2. If Type(V) is not Reference, return V.
3. Let base be GetBase(V).
4. If IsUnresolvableReference(V), throw a ReferenceError exception.
--- |
1390 |
- |
| dstr-dflt-obj-ptrn-id-trailing-comma.js |
---
description: Trailing comma is allowed following BindingPropertyList (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3 Destructuring Binding Patterns
ObjectBindingPattern[Yield] :
{ }
{ BindingPropertyList[?Yield] }
{ BindingPropertyList[?Yield] , }
--- |
1149 |
- |
| dstr-dflt-obj-ptrn-list-err.js |
---
description: Binding property list evaluation is interrupted by an abrupt completion (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPropertyList : BindingPropertyList , BindingProperty
1. Let status be the result of performing BindingInitialization for
BindingPropertyList using value and environment as arguments.
2. ReturnIfAbrupt(status).
--- |
1268 |
- |
| dstr-dflt-obj-ptrn-prop-ary-init.js |
---
description: Object binding pattern with "nested" array binding pattern using initializer (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1515 |
- |
| dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js |
---
description: Trailing comma is allowed following BindingPropertyList (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3 Destructuring Binding Patterns
ObjectBindingPattern[Yield] :
{ }
{ BindingPropertyList[?Yield] }
{ BindingPropertyList[?Yield] , }
--- |
1161 |
- |
| dstr-dflt-obj-ptrn-prop-ary-value-null.js |
---
description: Object binding pattern with "nested" array binding pattern taking the `null` value (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1160 |
- |
| dstr-dflt-obj-ptrn-prop-ary.js |
---
description: Object binding pattern with "nested" array binding pattern not using initializer (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1424 |
- |
| dstr-dflt-obj-ptrn-prop-eval-err.js |
---
description: Evaluation of property name returns an abrupt completion (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.5 Runtime Semantics: BindingInitialization
BindingProperty : PropertyName : BindingElement
1. Let P be the result of evaluating PropertyName
2. ReturnIfAbrupt(P).
--- |
1083 |
- |
| dstr-dflt-obj-ptrn-prop-id-get-value-err.js |
---
description: Error thrown when accessing the corresponding property of the value object (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
BindingElement : BindingPattern Initializeropt
1. Let v be GetV(value, propertyName).
2. ReturnIfAbrupt(v).
--- |
1261 |
- |
| dstr-dflt-obj-ptrn-prop-id-init-skipped.js |
---
description: Destructuring initializer is not evaluated when value is not `undefined` (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
BindingElement : BindingPattern Initializeropt
[...]
3. If Initializer is present and v is undefined, then
[...]
--- |
1693 |
- |
| dstr-dflt-obj-ptrn-prop-id-init-throws.js |
---
description: Error thrown when evaluating the initializer (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
BindingElement : BindingPattern Initializeropt
[...]
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
--- |
1211 |
- |
| dstr-dflt-obj-ptrn-prop-id-init-unresolvable.js |
---
description: Destructuring initializer is an unresolvable reference (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
BindingElement : BindingPattern Initializeropt
[...]
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
6.2.3.1 GetValue (V)
1. ReturnIfAbrupt(V).
2. If Type(V) is not Reference, return V.
3. Let base be GetBase(V).
4. If IsUnresolvableReference(V), throw a ReferenceError exception.
--- |
1392 |
- |
| dstr-dflt-obj-ptrn-prop-id-init.js |
---
description: Binding as specified via property name, identifier, and initializer (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
1223 |
- |
| dstr-dflt-obj-ptrn-prop-id-trailing-comma.js |
---
description: Trailing comma is allowed following BindingPropertyList (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3 Destructuring Binding Patterns
ObjectBindingPattern[Yield] :
{ }
{ BindingPropertyList[?Yield] }
{ BindingPropertyList[?Yield] , }
--- |
1216 |
- |
| dstr-dflt-obj-ptrn-prop-id.js |
---
description: Binding as specified via property name and identifier (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
1205 |
- |
| dstr-dflt-obj-ptrn-prop-obj-init.js |
---
description: Object binding pattern with "nested" object binding pattern using initializer (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1543 |
- |
| dstr-dflt-obj-ptrn-prop-obj-value-null.js |
---
description: Object binding pattern with "nested" object binding pattern taking the `null` value (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1174 |
- |
| dstr-dflt-obj-ptrn-prop-obj-value-undef.js |
---
description: Object binding pattern with "nested" object binding pattern taking the `null` value (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1156 |
- |
| dstr-dflt-obj-ptrn-prop-obj.js |
---
description: Object binding pattern with "nested" object binding pattern not using initializer (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1444 |
- |
| dstr-dflt-obj-ptrn-rest-getter.js |
---
description: Getter is called when obj is being deconstructed to a rest Object (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [object-rest, async-iteration]
flags: [generated, async]
includes: [propertyHelper.js]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
--- |
1180 |
- |
| dstr-dflt-obj-ptrn-rest-skip-non-enumerable.js |
---
description: Rest object doesn't contain non-enumerable properties (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [object-rest, async-iteration]
flags: [generated, async]
includes: [propertyHelper.js]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
--- |
1350 |
- |
| dstr-dflt-obj-ptrn-rest-val-obj.js |
---
description: Rest object contains just unextracted data (async generator function declaration (default parameter))
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [object-rest, async-iteration]
flags: [generated, async]
includes: [propertyHelper.js]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
--- |
1309 |
- |
| dstr-obj-init-null.js |
---
description: Value specifed for object binding pattern must be object coercible (null) (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
Runtime Semantics: BindingInitialization
ObjectBindingPattern : { }
1. Return NormalCompletion(empty).
--- |
924 |
- |
| dstr-obj-init-undefined.js |
---
description: Value specifed for object binding pattern must be object coercible (undefined) (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
Runtime Semantics: BindingInitialization
ObjectBindingPattern : { }
1. Return NormalCompletion(empty).
--- |
939 |
- |
| dstr-obj-ptrn-empty.js |
---
description: No property access occurs for an "empty" object binding pattern (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
Runtime Semantics: BindingInitialization
ObjectBindingPattern : { }
1. Return NormalCompletion(empty).
--- |
1179 |
- |
| dstr-obj-ptrn-id-get-value-err.js |
---
description: Error thrown when accessing the corresponding property of the value object (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. Let v be GetV(value, propertyName).
5. ReturnIfAbrupt(v).
--- |
1163 |
- |
| dstr-obj-ptrn-id-init-fn-name-arrow.js |
---
description: SingleNameBinding assigns `name` to arrow functions (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
--- |
1448 |
- |
| dstr-obj-ptrn-id-init-fn-name-class.js |
---
description: SingleNameBinding assigns `name` to "anonymous" classes (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
--- |
1587 |
- |
| dstr-obj-ptrn-id-init-fn-name-cover.js |
---
description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
--- |
1562 |
- |
| dstr-obj-ptrn-id-init-fn-name-fn.js |
---
description: SingleNameBinding assigns name to "anonymous" functions (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
--- |
1509 |
- |
| dstr-obj-ptrn-id-init-fn-name-gen.js |
---
description: SingleNameBinding assigns name to "anonymous" generator functions (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [generators, async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
--- |
1541 |
- |
| dstr-obj-ptrn-id-init-skipped.js |
---
description: Destructuring initializer is not evaluated when value is not `undefined` (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
[...]
--- |
1434 |
- |
| dstr-obj-ptrn-id-init-throws.js |
---
description: Error thrown when evaluating the initializer (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
--- |
1182 |
- |
| dstr-obj-ptrn-id-init-unresolvable.js |
---
description: Destructuring initializer is an unresolvable reference (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
6.2.3.1 GetValue (V)
1. ReturnIfAbrupt(V).
2. If Type(V) is not Reference, return V.
3. Let base be GetBase(V).
4. If IsUnresolvableReference(V), throw a ReferenceError exception.
--- |
1362 |
- |
| dstr-obj-ptrn-id-trailing-comma.js |
---
description: Trailing comma is allowed following BindingPropertyList (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3 Destructuring Binding Patterns
ObjectBindingPattern[Yield] :
{ }
{ BindingPropertyList[?Yield] }
{ BindingPropertyList[?Yield] , }
--- |
1121 |
- |
| dstr-obj-ptrn-list-err.js |
---
description: Binding property list evaluation is interrupted by an abrupt completion (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPropertyList : BindingPropertyList , BindingProperty
1. Let status be the result of performing BindingInitialization for
BindingPropertyList using value and environment as arguments.
2. ReturnIfAbrupt(status).
--- |
1240 |
- |
| dstr-obj-ptrn-prop-ary-init.js |
---
description: Object binding pattern with "nested" array binding pattern using initializer (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1487 |
- |
| dstr-obj-ptrn-prop-ary-trailing-comma.js |
---
description: Trailing comma is allowed following BindingPropertyList (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3 Destructuring Binding Patterns
ObjectBindingPattern[Yield] :
{ }
{ BindingPropertyList[?Yield] }
{ BindingPropertyList[?Yield] , }
--- |
1133 |
- |
| dstr-obj-ptrn-prop-ary-value-null.js |
---
description: Object binding pattern with "nested" array binding pattern taking the `null` value (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1132 |
- |
| dstr-obj-ptrn-prop-ary.js |
---
description: Object binding pattern with "nested" array binding pattern not using initializer (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1396 |
- |
| dstr-obj-ptrn-prop-eval-err.js |
---
description: Evaluation of property name returns an abrupt completion (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.5 Runtime Semantics: BindingInitialization
BindingProperty : PropertyName : BindingElement
1. Let P be the result of evaluating PropertyName
2. ReturnIfAbrupt(P).
--- |
1055 |
- |
| dstr-obj-ptrn-prop-id-get-value-err.js |
---
description: Error thrown when accessing the corresponding property of the value object (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
BindingElement : BindingPattern Initializeropt
1. Let v be GetV(value, propertyName).
2. ReturnIfAbrupt(v).
--- |
1233 |
- |
| dstr-obj-ptrn-prop-id-init-skipped.js |
---
description: Destructuring initializer is not evaluated when value is not `undefined` (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
BindingElement : BindingPattern Initializeropt
[...]
3. If Initializer is present and v is undefined, then
[...]
--- |
1665 |
- |
| dstr-obj-ptrn-prop-id-init-throws.js |
---
description: Error thrown when evaluating the initializer (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
BindingElement : BindingPattern Initializeropt
[...]
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
--- |
1183 |
- |
| dstr-obj-ptrn-prop-id-init-unresolvable.js |
---
description: Destructuring initializer is an unresolvable reference (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
BindingElement : BindingPattern Initializeropt
[...]
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
6.2.3.1 GetValue (V)
1. ReturnIfAbrupt(V).
2. If Type(V) is not Reference, return V.
3. Let base be GetBase(V).
4. If IsUnresolvableReference(V), throw a ReferenceError exception.
--- |
1364 |
- |
| dstr-obj-ptrn-prop-id-init.js |
---
description: Binding as specified via property name, identifier, and initializer (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
1195 |
- |
| dstr-obj-ptrn-prop-id-trailing-comma.js |
---
description: Trailing comma is allowed following BindingPropertyList (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3 Destructuring Binding Patterns
ObjectBindingPattern[Yield] :
{ }
{ BindingPropertyList[?Yield] }
{ BindingPropertyList[?Yield] , }
--- |
1188 |
- |
| dstr-obj-ptrn-prop-id.js |
---
description: Binding as specified via property name and identifier (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
8. Return InitializeReferencedBinding(lhs, v).
--- |
1177 |
- |
| dstr-obj-ptrn-prop-obj-init.js |
---
description: Object binding pattern with "nested" object binding pattern using initializer (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1515 |
- |
| dstr-obj-ptrn-prop-obj-value-null.js |
---
description: Object binding pattern with "nested" object binding pattern taking the `null` value (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1146 |
- |
| dstr-obj-ptrn-prop-obj-value-undef.js |
---
description: Object binding pattern with "nested" object binding pattern taking the `null` value (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1128 |
- |
| dstr-obj-ptrn-prop-obj.js |
---
description: Object binding pattern with "nested" object binding pattern not using initializer (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
--- |
1416 |
- |
| dstr-obj-ptrn-rest-getter.js |
---
description: Getter is called when obj is being deconstructed to a rest Object (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [object-rest, async-iteration]
flags: [generated, async]
includes: [propertyHelper.js]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
--- |
1152 |
- |
| dstr-obj-ptrn-rest-skip-non-enumerable.js |
---
description: Rest object doesn't contain non-enumerable properties (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [object-rest, async-iteration]
flags: [generated, async]
includes: [propertyHelper.js]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
--- |
1322 |
- |
| dstr-obj-ptrn-rest-val-obj.js |
---
description: Rest object contains just unextracted data (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [object-rest, async-iteration]
flags: [generated, async]
includes: [propertyHelper.js]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
--- |
1281 |
- |
| escaped-async.js |
---
esid: sec-grammar-notation
description: >
The `async` contextual keyword must not contain Unicode escape sequences.
info: |
Terminal symbols of the lexical, RegExp, and numeric string grammars are shown
in fixed width font, both in the productions of the grammars and throughout this
specification whenever the text directly refers to such a terminal symbol. These
are to appear in a script exactly as written. All terminal symbol code points
specified in this way are to be understood as the appropriate Unicode code points
from the Basic Latin range, as opposed to any similar-looking code points from
other Unicode ranges.
negative:
phase: parse
type: SyntaxError
features: [async-iteration]
--- |
945 |
- |
| params-trailing-comma-multiple.js |
---
description: A trailing comma should not increase the respective length, using multiple parameters (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
Trailing comma in the parameters list
14.1 Function Definitions
FormalParameters[Yield, Await] : FormalParameterList[?Yield, ?Await] ,
--- |
1294 |
- |
| params-trailing-comma-single.js |
---
description: A trailing comma should not increase the respective length, using a single parameter (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated, async]
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
scope, strict).
[...]
Trailing comma in the parameters list
14.1 Function Definitions
FormalParameters[Yield, Await] : FormalParameterList[?Yield, ?Await] ,
--- |
1258 |
- |
| rest-params-trailing-comma-early-error.js |
---
description: It's a syntax error if a FunctionRestParameter is followed by a trailing comma (async generator function declaration)
esid: sec-asyncgenerator-definitions-instantiatefunctionobject
features: [async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
( FormalParameters ) { AsyncGeneratorBody }
[...]
3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, 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]
--- |
1241 |
- |
| 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 Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
BindingIdentifier : Identifier
It is a Syntax Error if this production has a [Yield] parameter and
StringValue of Identifier is "yield".
--- |
950 |
- |
| 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 Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
BindingIdentifier : Identifier
It is a Syntax Error if this production has a [Yield] parameter and
StringValue of Identifier is "yield".
--- |
937 |
- |
| 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 Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
IdentifierReference : Identifier
It is a Syntax Error if this production has a [Yield] parameter and
StringValue of Identifier is "yield".
--- |
958 |
- |
| 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 Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
IdentifierReference : Identifier
It is a Syntax Error if this production has a [Yield] parameter and
StringValue of Identifier is "yield".
--- |
945 |
- |
| 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 Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
LabelIdentifier : Identifier
It is a Syntax Error if this production has a [Yield] parameter and
StringValue of Identifier is "yield".
--- |
942 |
- |
| 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 Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [async-iteration]
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
LabelIdentifier : Identifier
It is a Syntax Error if this production has a [Yield] parameter and
StringValue of Identifier is "yield".
--- |
929 |
- |
| yield-identifier-non-strict.js |
---
description: Use of yield as a valid identifier in a function body inside a generator body in non strict mode (Async generator function declaration - valid for non-strict only cases)
esid: prod-AsyncGeneratorDeclaration
features: [async-iteration]
flags: [generated, noStrict, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
--- |
1169 |
- |
| yield-identifier-spread-non-strict.js |
---
description: Mixed use of object spread and yield as a valid identifier in a function body inside a generator body in non strict mode (Async generator function declaration - valid for non-strict only cases)
esid: prod-AsyncGeneratorDeclaration
features: [object-spread, Symbol, async-iteration]
flags: [generated, noStrict, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
Spread Properties
PropertyDefinition[Yield]:
(...)
...AssignmentExpression[In, ?Yield]
--- |
1702 |
- |
| yield-identifier-spread-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 Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [object-spread, async-iteration]
flags: [generated, onlyStrict]
negative:
phase: parse
type: SyntaxError
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
Spread Properties
PropertyDefinition[Yield]:
(...)
...AssignmentExpression[In, ?Yield]
--- |
1121 |
- |
| yield-identifier-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 Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [async-iteration]
flags: [generated, onlyStrict]
negative:
phase: parse
type: SyntaxError
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
--- |
953 |
- |
| yield-promise-reject-next-catch.js |
---
description: yield Promise.reject(value) is treated as throw value (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
--- |
1252 |
- |
| yield-promise-reject-next-for-await-of-async-iterator.js |
---
description: yield * [Promise.reject(value)] is treated as throw value (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
--- |
1377 |
- |
| 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 Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
--- |
1362 |
- |
| yield-promise-reject-next-yield-star-async-iterator.js |
---
description: yield * (async iterator) is treated as throw value (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
--- |
1338 |
- |
| yield-promise-reject-next-yield-star-sync-iterator.js |
---
description: yield * (async iterator) is treated as throw value (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
--- |
1302 |
- |
| yield-promise-reject-next.js |
---
description: yield Promise.reject(value) is treated as throw value (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
--- |
1253 |
- |
| yield-spread-arr-multiple.js |
---
description: Use yield value in a array spread position (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [async-iteration]
flags: [generated, async]
includes: [compareArray.js]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
Array Initializer
SpreadElement[Yield, Await]:
...AssignmentExpression[+In, ?Yield, ?Await]
--- |
1168 |
- |
| yield-spread-arr-single.js |
---
description: Use yield value in a array spread position (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
Array Initializer
SpreadElement[Yield, Await]:
...AssignmentExpression[+In, ?Yield, ?Await]
--- |
1259 |
- |
| yield-spread-obj.js |
---
description: Use yield value in a object spread position (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [object-spread, async-iteration]
flags: [generated, async]
includes: [compareArray.js]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
Spread Properties
PropertyDefinition[Yield]:
(...)
...AssignmentExpression[In, ?Yield]
--- |
1214 |
- |
| yield-star-async-next.js |
---
description: Execution order for yield* with async iterator and next() (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, async-iteration, Symbol.asyncIterator]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
--- |
7186 |
- |
| yield-star-async-return.js |
---
description: execution order for yield* with async iterator and return() (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [async-iteration, Symbol.asyncIterator]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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).
...
--- |
7905 |
- |
| yield-star-async-throw.js |
---
description: execution order for yield* with async iterator and throw() (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [async-iteration, Symbol.asyncIterator]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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).
...
--- |
7927 |
- |
| yield-star-expr-abrupt.js |
---
description: Abrupt completion while getting yield* operand (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
...
--- |
1363 |
- |
| yield-star-getiter-async-get-abrupt.js |
---
description: Abrupt completion while getting [Symbol.asyncIterator] (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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).
...
--- |
1870 |
- |
| yield-star-getiter-async-not-callable-boolean-throw.js |
---
description: Throws a TypeError on a non-callable [Symbol.asyncIterator] (boolean) (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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.
...
--- |
2000 |
- |
| yield-star-getiter-async-not-callable-number-throw.js |
---
description: Throws a TypeError on a non-callable [Symbol.asyncIterator] (number) (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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.
...
--- |
1994 |
- |
| yield-star-getiter-async-not-callable-object-throw.js |
---
description: Throws a TypeError on a non-callable [Symbol.asyncIterator] (object) (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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.
...
--- |
1995 |
- |
| yield-star-getiter-async-not-callable-string-throw.js |
---
description: Throws a TypeError on a non-callable [Symbol.asyncIterator] (string) (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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.
...
--- |
1995 |
- |
| yield-star-getiter-async-not-callable-symbol-throw.js |
---
description: Throws a TypeError on a non-callable [Symbol.asyncIterator] (symbol) (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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.
...
--- |
2013 |
- |
| yield-star-getiter-async-null-sync-get-abrupt.js |
---
description: Abrupt completion while getting @@iterator after null @@asyncIterator (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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).
...
--- |
2000 |
- |
| yield-star-getiter-async-returns-abrupt.js |
---
description: Abrupt completion while calling [Symbol.asyncIterator] (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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).
...
--- |
1848 |
- |
| yield-star-getiter-async-returns-boolean-throw.js |
---
description: Non object returned by [Symbol.asyncIterator]() - boolean (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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.
...
--- |
1920 |
- |
| yield-star-getiter-async-returns-null-throw.js |
---
description: Non object returned by [Symbol.asyncIterator]() - null (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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.
...
--- |
1914 |
- |
| yield-star-getiter-async-returns-number-throw.js |
---
description: Non object returned by [Symbol.asyncIterator]() - number (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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.
...
--- |
1916 |
- |
| yield-star-getiter-async-returns-string-throw.js |
---
description: Non object returned by [Symbol.asyncIterator]() - string (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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.
...
--- |
1918 |
- |
| yield-star-getiter-async-returns-symbol-throw.js |
---
description: Non object returned by [Symbol.asyncIterator]() - symbol (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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.
...
--- |
1934 |
- |
| yield-star-getiter-async-returns-undefined-throw.js |
---
description: Non object returned by [Symbol.asyncIterator]() - undefined (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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.
...
--- |
1929 |
- |
| yield-star-getiter-async-undefined-sync-get-abrupt.js |
---
description: Abrupt completion while getting @@iterator after undefined @@asyncIterator (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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).
...
--- |
2015 |
- |
| yield-star-getiter-sync-get-abrupt.js |
---
description: Abrupt completion while getting [Symbol.iterator] (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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).
...
--- |
1853 |
- |
| yield-star-getiter-sync-not-callable-boolean-throw.js |
---
description: Throws a TypeError on a non-callable [Symbol.iterator] (boolean) (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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.
...
--- |
1907 |
- |
| yield-star-getiter-sync-not-callable-number-throw.js |
---
description: Throws a TypeError on a non-callable [Symbol.iterator] (number) (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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.
...
--- |
1901 |
- |
| yield-star-getiter-sync-not-callable-object-throw.js |
---
description: Throws a TypeError on a non-callable [Symbol.iterator] (object) (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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.
...
--- |
1902 |
- |
| yield-star-getiter-sync-not-callable-string-throw.js |
---
description: Throws a TypeError on a non-callable [Symbol.iterator] (string) (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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.
...
--- |
1902 |
- |
| yield-star-getiter-sync-not-callable-symbol-throw.js |
---
description: Throws a TypeError on a non-callable [Symbol.iterator] (symbol) (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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.
...
--- |
1937 |
- |
| yield-star-getiter-sync-returns-abrupt.js |
---
description: Abrupt completion while calling [Symbol.iterator] (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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).
...
--- |
1803 |
- |
| yield-star-getiter-sync-returns-boolean-throw.js |
---
description: Non object returned by [Symbol.iterator]() - boolean (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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.
...
--- |
1978 |
- |
| yield-star-getiter-sync-returns-null-throw.js |
---
description: Non object returned by [Symbol.iterator]() - null (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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.
...
--- |
1972 |
- |
| yield-star-getiter-sync-returns-number-throw.js |
---
description: Non object returned by [Symbol.iterator]() - number (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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.
...
--- |
1973 |
- |
| yield-star-getiter-sync-returns-string-throw.js |
---
description: Non object returned by [Symbol.iterator]() - string (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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.
...
--- |
1974 |
- |
| yield-star-getiter-sync-returns-symbol-throw.js |
---
description: Non object returned by [Symbol.iterator]() - symbol (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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.
...
--- |
1987 |
- |
| yield-star-getiter-sync-returns-undefined-throw.js |
---
description: Non object returned by [Symbol.iterator]() - undefined (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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.
...
--- |
1987 |
- |
| yield-star-next-call-done-get-abrupt.js |
---
description: Abrupt completion while getting done (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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).
...
--- |
1864 |
- |
| yield-star-next-call-returns-abrupt.js |
---
description: Abrupt completion while calling next (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
...
--- |
1629 |
- |
| yield-star-next-call-value-get-abrupt.js |
---
description: Abrupt completion while getting value (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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).
...
--- |
1918 |
- |
| yield-star-next-get-abrupt.js |
---
description: Abrupt completion while getting next (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
...
--- |
1624 |
- |
| yield-star-next-non-object-ignores-then.js |
---
description: If next() value is not-object, do not access respective then property (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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").
...
--- |
2300 |
- |
| yield-star-next-not-callable-boolean-throw.js |
---
description: Not-callable next value in a yield star position - boolean (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
...
--- |
1624 |
- |
| yield-star-next-not-callable-null-throw.js |
---
description: Not-callable next value in a yield star position - null (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
...
--- |
1618 |
- |
| yield-star-next-not-callable-number-throw.js |
---
description: Not-callable next value in a yield star position - number (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
...
--- |
1620 |
- |
| yield-star-next-not-callable-object-throw.js |
---
description: Not-callable next value in a yield star position - object (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
...
--- |
1620 |
- |
| yield-star-next-not-callable-string-throw.js |
---
description: Not-callable next value in a yield star position - string (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
...
--- |
1620 |
- |
| yield-star-next-not-callable-symbol-throw.js |
---
description: Not-callable next value in a yield star position - symbol (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
...
--- |
1630 |
- |
| yield-star-next-not-callable-undefined-throw.js |
---
description: Not-callable next value in a yield star position - undefined (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
AsyncGeneratorBody }
YieldExpression: yield * AssignmentExpression
...
6. Repeat
a. If received.[[Type]] is normal, then
ii. Let innerResult be ? Invoke(iterator, "next",
« received.[[Value]] »).
...
--- |
1633 |
- |
| yield-star-next-then-get-abrupt.js |
---
description: Return abrupt after getting next().then (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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 »).
...
--- |
2236 |
- |
| yield-star-next-then-non-callable-boolean-fulfillpromise.js |
---
description: FulfillPromise if next().then is not-callable (boolean) (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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).
...
--- |
2142 |
- |
| yield-star-next-then-non-callable-null-fulfillpromise.js |
---
description: FulfillPromise if next().then is not-callable (null) (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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).
...
--- |
2136 |
- |
| yield-star-next-then-non-callable-number-fulfillpromise.js |
---
description: FulfillPromise if next().then is not-callable (number) (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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).
...
--- |
2138 |
- |
| yield-star-next-then-non-callable-object-fulfillpromise.js |
---
description: FulfillPromise if next().then is not-callable (object) (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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).
...
--- |
2138 |
- |
| yield-star-next-then-non-callable-string-fulfillpromise.js |
---
description: FulfillPromise if next().then is not-callable (string) (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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).
...
--- |
2138 |
- |
| yield-star-next-then-non-callable-symbol-fulfillpromise.js |
---
description: FulfillPromise if next().then is not-callable (symbol) (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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).
...
--- |
2148 |
- |
| yield-star-next-then-non-callable-undefined-fulfillpromise.js |
---
description: FulfillPromise if next().then is not-callable (undefined) (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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).
...
--- |
2151 |
- |
| yield-star-next-then-returns-abrupt.js |
---
description: Return abrupt after calling next().then (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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 »).
...
--- |
2236 |
- |
| yield-star-sync-next.js |
---
description: execution order for yield* with sync iterator and next() (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, async-iteration, Symbol.asyncIterator]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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]]).
--- |
6793 |
- |
| yield-star-sync-return.js |
---
description: execution order for yield* with sync iterator and return() (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, async-iteration, Symbol.asyncIterator]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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).
...
--- |
6058 |
- |
| yield-star-sync-throw.js |
---
description: execution order for yield* with sync iterator and throw() (Async generator Function declaration)
esid: prod-AsyncGeneratorDeclaration
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
Async Generator Function Definitions
AsyncGeneratorDeclaration:
async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
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).
...
--- |
6016 |
- |