mirror of https://github.com/tc39/test262.git
58 lines
2.1 KiB
JavaScript
58 lines
2.1 KiB
JavaScript
// This file was procedurally generated from the following sources:
|
|
// - src/dstr-assignment-for-await/obj-prop-elem-init-fn-name-fn.case
|
|
// - src/dstr-assignment-for-await/default/async-func-decl.template
|
|
/*---
|
|
description: Assignment of function `name` attribute (FunctionExpression) (for-await-of statement in an async function declaration)
|
|
esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation
|
|
features: [destructuring-binding, async-iteration]
|
|
flags: [generated, async]
|
|
includes: [propertyHelper.js]
|
|
info: |
|
|
IterationStatement :
|
|
for await ( LeftHandSideExpression of AssignmentExpression ) Statement
|
|
|
|
1. Let keyResult be the result of performing ? ForIn/OfHeadEvaluation(« »,
|
|
AssignmentExpression, iterate).
|
|
2. Return ? ForIn/OfBodyEvaluation(LeftHandSideExpression, Statement,
|
|
keyResult, assignment, labelSet).
|
|
|
|
13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation
|
|
|
|
[...]
|
|
5. If destructuring is true and if lhsKind is assignment, then
|
|
a. Assert: lhs is a LeftHandSideExpression.
|
|
b. Let assignmentPattern be the parse of the source text corresponding to
|
|
lhs using AssignmentPattern as the goal symbol.
|
|
[...]
|
|
|
|
AssignmentElement[Yield] : DestructuringAssignmentTarget Initializeropt
|
|
[...] 6. If Initializer is present and v is undefined and
|
|
IsAnonymousFunctionDefinition(Initializer) and IsIdentifierRef of
|
|
DestructuringAssignmentTarget are both true, then
|
|
a. Let hasNameProperty be ? HasOwnProperty(rhsValue, "name").
|
|
b. If hasNameProperty is false, perform SetFunctionName(rhsValue, GetReferencedName(lref)).
|
|
|
|
---*/
|
|
let xFnexp, fnexp;
|
|
|
|
let iterCount = 0;
|
|
async function fn() {
|
|
for await ({ x: xFnexp = function x() {}, x: fnexp = function() {} } of [{}]) {
|
|
assert.notSameValue(xFnexp.name, 'xFnexp');
|
|
|
|
verifyProperty(fnexp, 'name', {
|
|
enumerable: false,
|
|
writable: false,
|
|
configurable: true,
|
|
value: 'fnexp'
|
|
});
|
|
iterCount += 1;
|
|
}
|
|
}
|
|
|
|
let promise = fn();
|
|
|
|
promise
|
|
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
|
.then($DONE, $DONE);
|