mirror of
https://github.com/tc39/test262.git
synced 2025-09-27 12:08:43 +02:00
26676beab5
The files in this patch are organized according to the following naming scheme: Prefix | Grammar production -------------------|------------------- `array-empty-` | ArrayAssignmentPattern : [ ] `array-elision-` | ArrayAssignmentPattern : [ Elision ] `array-rest-` | ArrayAssignmentPattern : [ Elisionopt AssignmentRestElement ] `array-elem-` | ArrayAssignmentPattern : [ AssignmentElementList ] `array-elem-trlg-` | ArrayAssignmentPattern : [ AssignmentElementList , Elisionopt AssignmentRestElementopt ] Suffix | Intent -------------------|------- `-abpt-close-err` | The assignment evaluation returns an abrupt completion, and the iterator's `return` method throws an error `-abpt-close-skip` | The assignment evaluation returns an abrupt completion, but IteratorClose is not invoked `-abpt-close` | The assignment evaluation returns an abrupt completion, and IteratorClose is invoked as specified `-get-err` | Abrupt completion returned from GetIterator `-nrml-close-err` | The assignment evaluation completes, and the iterator's `return` method throws an error `-nrml-close-null` | The assignment evaluation completes, and the iterator's `return` method returns a non-Object value (there is no corresponding `-abpt-` suffix because the algorithm does not reference the return value in those cases) `-nrml-close-skip` | The assignment evaluation completes, but IteratorClose is not invoked `-nrml-close` | The assignment evaluation completes, and IteratorClose is invoked as specified Not all suffixes are appropriate for all productions. Suffixes have been simplified in cases where less specificity is necessary to disambiguate test cases.
60 lines
1.6 KiB
JavaScript
60 lines
1.6 KiB
JavaScript
// Copyright (C) 2016 the V8 project authors. All rights reserved.
|
|
// This code is governed by the BSD license found in the LICENSE file.
|
|
/*---
|
|
description: >
|
|
IteratorClose is called when reference evaluation produces a "throw"
|
|
completion
|
|
info: |
|
|
ArrayAssignmentPattern : [ Elisionopt AssignmentRestElement ]
|
|
|
|
[...]
|
|
5. Let result be the result of performing
|
|
IteratorDestructuringAssignmentEvaluation of AssignmentRestElement with
|
|
iteratorRecord as the argument
|
|
6. If iteratorRecord.[[done]] is false, return IteratorClose(iterator,
|
|
result).
|
|
|
|
AssignmentRestElement[Yield] : ... DestructuringAssignmentTarget
|
|
|
|
1. If DestructuringAssignmentTarget is neither an ObjectLiteral nor an
|
|
ArrayLiteral, then
|
|
a. Let lref be the result of evaluating DestructuringAssignmentTarget.
|
|
b. ReturnIfAbrupt(lref).
|
|
features: [Symbol.iterator]
|
|
es6id: 12.14.5.2
|
|
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
|
---*/
|
|
|
|
var nextCount = 0;
|
|
var returnCount = 0;
|
|
var x;
|
|
function ReturnError() {}
|
|
var iterable = {};
|
|
var iterator = {
|
|
next: function() {
|
|
nextCount += 1;
|
|
// Set an upper-bound to limit unnecessary iteration in non-conformant
|
|
// implementations
|
|
return { done: nextCount > 10 };
|
|
},
|
|
return: function() {
|
|
returnCount += 1;
|
|
|
|
// This value should be discarded.
|
|
throw new ReturnError();
|
|
}
|
|
};
|
|
var thrower = function() {
|
|
throw new Test262Error();
|
|
};
|
|
iterable[Symbol.iterator] = function() {
|
|
return iterator;
|
|
};
|
|
|
|
assert.throws(Test262Error, function() {
|
|
[...{}[thrower()]] = iterable;
|
|
});
|
|
|
|
assert.sameValue(nextCount, 0);
|
|
assert.sameValue(returnCount, 1);
|