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// |reftest| async
// This file was procedurally generated from the following sources:
// - src/dstr-binding-for-await/ary-ptrn-elem-id-init-fn-name-class.case
// - src/dstr-binding-for-await/default/for-await-of-async-gen-var.template
/*---
description: SingleNameBinding assigns `name` to "anonymous" classes (for-await-of statement)
esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation
features: [destructuring-binding, async-iteration]
flags: [generated, async]
info: |
IterationStatement :
for await ( var ForBinding of AssignmentExpression ) Statement
[...]
2. Return ? ForIn/OfBodyEvaluation(ForBinding, Statement, keyResult,
varBinding, 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
1. Assert: lhs is a ForBinding.
2. Let status be the result of performing BindingInitialization
for lhs passing nextValue and undefined as the arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializer_opt
[...]
5. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Set v to ? GetValue(defaultValue).
c. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
6. If environment is undefined, return PutValue(lhs, v).
7. Return InitializeReferencedBinding(lhs, v).
---*/
var iterCount = 0;
async function *fn() {
for await (var [cls = class {}, xCls = class X {}, xCls2 = class { static name() {} }] of [[]]) {
assert.sameValue(cls.name, 'cls');
assert.notSameValue(xCls.name, 'xCls');
assert.notSameValue(xCls2.name, 'xCls2');
iterCount += 1;
}
}
fn().next()
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
.then($DONE, $DONE);