mirror of https://github.com/tc39/test262.git
35 lines
1.4 KiB
JavaScript
35 lines
1.4 KiB
JavaScript
// This file was procedurally generated from the following sources:
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// - src/dstr-assignment-for-await/array-elem-nested-obj-yield-ident-invalid.case
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// - src/dstr-assignment-for-await/error-async-function-syntax/async-func-decl.template
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/*---
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description: When a `yield` token appears within the Initializer of a nested destructuring assignment outside of a generator function body, it behaves as a IdentifierReference. (for-await-of statement in an async function declaration)
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esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation
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features: [destructuring-binding, async-iteration]
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flags: [generated, onlyStrict]
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negative:
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phase: parse
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type: SyntaxError
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info: |
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IterationStatement :
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for await ( LeftHandSideExpression of AssignmentExpression ) Statement
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1. Let keyResult be the result of performing ? ForIn/OfHeadEvaluation(« »,
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AssignmentExpression, iterate).
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2. Return ? ForIn/OfBodyEvaluation(LeftHandSideExpression, Statement,
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keyResult, assignment, labelSet).
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13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation
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[...]
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5. If destructuring is true and if lhsKind is assignment, then
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a. Assert: lhs is a LeftHandSideExpression.
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b. Let assignmentPattern be the parse of the source text corresponding to
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lhs using AssignmentPattern as the goal symbol.
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[...]
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---*/
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$DONOTEVALUATE();
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async function fn() {
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for await ([{ x = yield }] of [[{}]]) {}
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}
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