| browser.js |
|
0 |
| consecutive-yields.js |
---
es6id: 25.2
description: >
When a generator body contains two consecutive yield statements, it should
produce an iterable that visits each yielded value and then completes.
features: [generators]
--- |
898 |
| context-method-invocation.js |
---
es6id: 25.2
description: >
When a generator function is invoked as a method of an object, its context
is that object.
features: [generators]
--- |
461 |
| from-state-executing.js |
---
esid: sec-generatorvalidate
description: >
A TypeError should be thrown if the generator is resumed while in the
"executing" state and the generator should be marked as "completed"
info: |
25.3.3.1 GeneratorStart
[...]
4. Set the code evaluation state of genContext such that when evaluation is
resumed for that execution context the following steps will be performed:
a. Let result be the result of evaluating generatorBody.
b. Assert: If we return here, the generator either threw an exception or
performed either an implicit or explicit return.
c. Remove genContext from the execution context stack and restore the
execution context that is at the top of the execution context stack as
the running execution context.
d. Set generator.[[GeneratorState]] to "completed".
[...]
25.3.3.3 GeneratorResume
1. Let state be ? GeneratorValidate(generator).
25.3.3.2 GeneratorValidate
1. If Type(generator) is not Object, throw a TypeError exception.
2. If generator does not have a [[GeneratorState]] internal slot, throw a
TypeError exception.
3. Assert: generator also has a [[GeneratorContext]] internal slot.
4. Let state be generator.[[GeneratorState]].
5. If state is "executing", throw a TypeError exception.
features: [generators]
--- |
2404 |
| length.js |
---
es6id: 25.3.1.2
description: >
Generator.prototype.next.length is 1.
info: |
Generator.prototype.next ( value )
17 ECMAScript Standard Built-in Objects:
Every built-in Function object, including constructors, has a length
property whose value is an integer. Unless otherwise specified, this
value is equal to the largest number of named arguments shown in the
subclause headings for the function description, including optional
parameters. However, rest parameters shown using the form “...name”
are not included in the default argument count.
Unless otherwise specified, the length property of a built-in Function
object has the attributes { [[Writable]]: false, [[Enumerable]]: false,
[[Configurable]]: true }.
includes: [propertyHelper.js]
features: [generators]
--- |
1188 |
| lone-return.js |
---
es6id: 25.2
description: >
When a generator body contains a lone return statement, it should produce
an iterator that immediately completes with the returned value.
features: [generators]
--- |
562 |
| lone-yield.js |
---
es6id: 25.2
description: >
When a generator body contains a lone yield statement, it should produce an
iterable that visits the yielded value and then completes.
features: [generators]
--- |
728 |
| name.js |
---
es6id: 25.3.1.2
description: >
Generator.prototype.next.name is "next".
info: |
Generator.prototype.next ( value )
17 ECMAScript Standard Built-in Objects:
Every built-in Function object, including constructors, that is not
identified as an anonymous function has a name property whose value
is a String.
Unless otherwise specified, the name property of a built-in Function
object, if it exists, has the attributes { [[Writable]]: false,
[[Enumerable]]: false, [[Configurable]]: true }.
includes: [propertyHelper.js]
features: [generators]
--- |
949 |
| no-control-flow.js |
---
es6id: 25.2
description: >
When a generator body contains no control flow statements, it should
produce an iterator that is initially completed with `undefined` as its
value.
features: [generators]
--- |
741 |
| not-a-constructor.js |
---
esid: sec-ecmascript-standard-built-in-objects
description: >
Object.getPrototypeOf((function* g() {}).prototype).next does not implement [[Construct]], is not new-able
info: |
ECMAScript Function Objects
Built-in function objects that are not identified as constructors do not
implement the [[Construct]] internal method unless otherwise specified in
the description of a particular function.
sec-evaluatenew
...
7. If IsConstructor(constructor) is false, throw a TypeError exception.
...
includes: [isConstructor.js]
features: [Reflect.construct, generators, arrow-function]
--- |
1060 |
| property-descriptor.js |
---
description: >
The GeneratorPrototype intrinsic should define a `next` property that is
non-enumerable, writable, and configurable (as per section 17).
includes: [propertyHelper.js]
es6id: 25.3.1
features: [generators]
--- |
621 |
| result-prototype.js |
---
es6id: 25.2
description: >
The `next` method returns an object that has "own" properties `value` and
`done` and that inherits directly from the Object prototype.
features: [generators]
--- |
668 |
| return-yield-expr.js |
---
es6id: 25.2
description: >
Yield expressions are valid yield expression operands.
features: [generators]
--- |
642 |
| shell.js |
---
description: |
Test if a given function is a constructor function.
defines: [isConstructor]
features: [Reflect.construct]
--- |
596 |
| this-val-not-generator.js |
---
esid: sec-generator.prototype.next
description: >
A TypeError should be thrown from GeneratorValidate (25.3.3.2) if the
context of `next` does not define the [[GeneratorState]] internal slot.
info: |
1. Let g be the this value.
2. Return GeneratorResume(g, value).
25.3.3.3 GeneratorResume
1. Let state be ? GeneratorValidate(generator).
25.3.3.2 GeneratorValidate
[...]
2. If generator does not have a [[GeneratorState]] internal slot, throw a
TypeError exception.
features: [generators]
--- |
1873 |
| this-val-not-object.js |
---
esid: sec-generator.prototype.next
description: >
A TypeError should be thrown from GeneratorValidate (25.3.3.2) if the "this"
value of `next` is not an object.
info: |
1. Let g be the this value.
2. Return GeneratorResume(g, value).
25.3.3.3 GeneratorResume
1. Let state be ? GeneratorValidate(generator).
25.3.3.2 GeneratorValidate
1. If Type(generator) is not Object, throw a TypeError exception.
features: [generators, Symbol]
--- |
2157 |