mirror of https://github.com/tc39/test262.git
62 lines
1.9 KiB
JavaScript
62 lines
1.9 KiB
JavaScript
// This file was procedurally generated from the following sources:
|
|
// - src/dstr-binding-for-await/ary-ptrn-rest-init-id.case
|
|
// - src/dstr-binding-for-await/default/for-await-of-async-func-const.template
|
|
/*---
|
|
description: Rest element (identifier) does not support initializer (for-await-of statement)
|
|
esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation
|
|
features: [destructuring-binding, async-iteration]
|
|
flags: [generated]
|
|
negative:
|
|
phase: parse
|
|
type: SyntaxError
|
|
info: |
|
|
IterationStatement :
|
|
for await ( ForDeclaration of AssignmentExpression ) Statement
|
|
|
|
[...]
|
|
2. Return ? ForIn/OfBodyEvaluation(ForDeclaration, Statement, keyResult,
|
|
lexicalBinding, labelSet, async).
|
|
|
|
13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation
|
|
|
|
[...]
|
|
4. Let destructuring be IsDestructuring of lhs.
|
|
[...]
|
|
6. Repeat
|
|
[...]
|
|
j. If destructuring is false, then
|
|
[...]
|
|
k. Else
|
|
i. If lhsKind is assignment, then
|
|
[...]
|
|
ii. Else if lhsKind is varBinding, then
|
|
[...]
|
|
iii. Else,
|
|
1. Assert: lhsKind is lexicalBinding.
|
|
2. Assert: lhs is a ForDeclaration.
|
|
3. Let status be the result of performing BindingInitialization
|
|
for lhs passing nextValue and iterationEnv as arguments.
|
|
[...]
|
|
|
|
13.3.3 Destructuring Binding Patterns
|
|
ArrayBindingPattern[Yield] :
|
|
[ Elisionopt BindingRestElement[?Yield]opt ]
|
|
[ BindingElementList[?Yield] ]
|
|
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
|
|
---*/
|
|
$DONOTEVALUATE();
|
|
|
|
var iterCount = 0;
|
|
|
|
async function fn() {
|
|
for await (const [...x = []] of [[]]) {
|
|
|
|
|
|
iterCount += 1;
|
|
}
|
|
}
|
|
|
|
fn()
|
|
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
|
.then($DONE, $DONE);
|