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36 lines
1.4 KiB
JavaScript
36 lines
1.4 KiB
JavaScript
// This file was procedurally generated from the following sources:
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// - src/dstr-assignment-async-iteration/array-elem-nested-array.case
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// - src/dstr-assignment-async-iteration/async-function/for-await-of-async-func.template
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/*---
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description: When DestructuringAssignmentTarget is an array literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment. (for-await-of statement)
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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, async]
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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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var x;
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var iterCount = 0;
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async function fn() {
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for await ([[x]] of [[[1]]]) {
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assert.sameValue(x, 1);
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iterCount += 1;
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}
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}
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