mirror of https://github.com/tc39/test262.git
70 lines
2.4 KiB
JavaScript
70 lines
2.4 KiB
JavaScript
// This file was procedurally generated from the following sources:
|
|
// - src/dstr-binding/obj-ptrn-prop-ary.case
|
|
// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
|
|
/*---
|
|
description: Object binding pattern with "nested" array binding pattern not using initializer (static class expression async generator method)
|
|
esid: sec-class-definitions-runtime-semantics-evaluation
|
|
features: [async-iteration]
|
|
flags: [generated, async]
|
|
info: |
|
|
ClassExpression : class BindingIdentifieropt ClassTail
|
|
|
|
1. If BindingIdentifieropt is not present, let className be undefined.
|
|
2. Else, let className be StringValue of BindingIdentifier.
|
|
3. Let value be the result of ClassDefinitionEvaluation of ClassTail
|
|
with argument className.
|
|
[...]
|
|
|
|
14.5.14 Runtime Semantics: ClassDefinitionEvaluation
|
|
|
|
21. For each ClassElement m in order from methods
|
|
a. If IsStatic of m is false, then
|
|
b. Else,
|
|
Let status be the result of performing PropertyDefinitionEvaluation
|
|
for m with arguments F and false.
|
|
[...]
|
|
|
|
Runtime Semantics: PropertyDefinitionEvaluation
|
|
|
|
AsyncGeneratorMethod :
|
|
async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
|
|
{ AsyncGeneratorBody }
|
|
|
|
1. Let propKey be the result of evaluating PropertyName.
|
|
2. ReturnIfAbrupt(propKey).
|
|
3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
|
|
Otherwise let strict be false.
|
|
4. Let scope be the running execution context's LexicalEnvironment.
|
|
5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
|
|
AsyncGeneratorBody, scope, strict).
|
|
[...]
|
|
|
|
|
|
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.
|
|
---*/
|
|
|
|
|
|
var callCount = 0;
|
|
var C = class {
|
|
static async *method({ w: [x, y, z] = [4, 5, 6] }) {
|
|
assert.sameValue(x, 7);
|
|
assert.sameValue(y, undefined);
|
|
assert.sameValue(z, undefined);
|
|
|
|
assert.throws(ReferenceError, function() {
|
|
w;
|
|
});
|
|
callCount = callCount + 1;
|
|
}
|
|
};
|
|
|
|
C.method({ w: [7, undefined, ] }).next().then(() => {
|
|
assert.sameValue(callCount, 1, 'invoked exactly once');
|
|
}).then($DONE, $DONE);
|