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Diffstat (limited to 'js/src/tests/test262/language/expressions/class/dstr/async-gen-meth-static-ary-ptrn-elem-id-iter-val-array-prototype.js')
-rw-r--r-- | js/src/tests/test262/language/expressions/class/dstr/async-gen-meth-static-ary-ptrn-elem-id-iter-val-array-prototype.js | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/expressions/class/dstr/async-gen-meth-static-ary-ptrn-elem-id-iter-val-array-prototype.js b/js/src/tests/test262/language/expressions/class/dstr/async-gen-meth-static-ary-ptrn-elem-id-iter-val-array-prototype.js new file mode 100644 index 0000000000..edb383febe --- /dev/null +++ b/js/src/tests/test262/language/expressions/class/dstr/async-gen-meth-static-ary-ptrn-elem-id-iter-val-array-prototype.js @@ -0,0 +1,88 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-iter-val-array-prototype.case +// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template +/*--- +description: Array destructuring uses overriden Array.prototype[Symbol.iterator] (static class expression async generator method) +esid: sec-class-definitions-runtime-semantics-evaluation +features: [Symbol.iterator, generators, 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). + [...] + + + Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializer_opt + + 1. Let bindingId be StringValue of BindingIdentifier. + 2. Let lhs be ? ResolveBinding(bindingId, environment). + 3. If iteratorRecord.[[Done]] is false, then + a. Let next be IteratorStep(iteratorRecord). + 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). + [...] + 7. Return InitializeReferencedBinding(lhs, v). + +---*/ +Array.prototype[Symbol.iterator] = function* () { + if (this.length > 0) { + yield this[0]; + } + if (this.length > 1) { + yield this[1]; + } + if (this.length > 2) { + yield 42; + } +}; + + +var callCount = 0; +var C = class { + static async *method([x, y, z]) { + assert.sameValue(x, 1); + assert.sameValue(y, 2); + assert.sameValue(z, 42); + callCount = callCount + 1; + } +}; + +C.method([1, 2, 3]).next().then(() => { + assert.sameValue(callCount, 1, 'invoked exactly once'); +}).then($DONE, $DONE); |