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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/test262/language/statements/for-of/dstr/array-elem-trlg-iter-list-rtrn-close.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/tests/test262/language/statements/for-of/dstr/array-elem-trlg-iter-list-rtrn-close.js')
-rw-r--r-- | js/src/tests/test262/language/statements/for-of/dstr/array-elem-trlg-iter-list-rtrn-close.js | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/for-of/dstr/array-elem-trlg-iter-list-rtrn-close.js b/js/src/tests/test262/language/statements/for-of/dstr/array-elem-trlg-iter-list-rtrn-close.js new file mode 100644 index 0000000000..09c39d4e3a --- /dev/null +++ b/js/src/tests/test262/language/statements/for-of/dstr/array-elem-trlg-iter-list-rtrn-close.js @@ -0,0 +1,102 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-assignment/array-elem-trlg-iter-list-rtrn-close.case +// - src/dstr-assignment/default/for-of.template +/*--- +description: IteratorClose is invoked when evaluation of AssignmentElementList returns a "return" completion and the iterator has not been marked as "done" (For..of statement) +esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation +features: [Symbol.iterator, generators, destructuring-binding] +flags: [generated] +info: | + IterationStatement : + for ( 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 + + [...] + 4. 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. + [...] + + ArrayAssignmentPattern : + [ AssignmentElementList , Elisionopt AssignmentRestElementopt ] + + [...] + 3. Let iteratorRecord be Record {[[iterator]]: iterator, [[done]]: false}. + 4. Let status be the result of performing + IteratorDestructuringAssignmentEvaluation of AssignmentElementList using + iteratorRecord as the argument. + 5. If status is an abrupt completion, then + a. If iteratorRecord.[[done]] is false, return IteratorClose(iterator, + status). + b. Return Completion(status). + + 7.4.6 IteratorClose( iterator, completion ) + + [...] + 6. Let innerResult be Call(return, iterator, « »). + 7. If completion.[[type]] is throw, return Completion(completion). + 8. If innerResult.[[type]] is throw, return Completion(innerResult). + +---*/ +var nextCount = 0; +var returnCount = 0; +var unreachable = 0; +var thisValue = null; +var args = null; +var iterable = {}; +var iterator = { + next: function() { + nextCount += 1; + return {done: false, value: undefined}; + }, + return: function() { + returnCount += 1; + thisValue = this; + args = arguments; + return {}; + } +}; +var iter, result; + +iterable[Symbol.iterator] = function() { + return iterator; +}; + +function* g() { + +var counter = 0; + +for ([ {} = yield , ] of [iterable]) { + unreachable += 1; + counter += 1; +} + +assert.sameValue(counter, 1); + +}; + +iter = g(); +iter.next(); + +assert.sameValue(nextCount, 1); +assert.sameValue(returnCount, 0); + +result = iter.return(888); + +assert.sameValue(nextCount, 1); +assert.sameValue(returnCount, 1); +assert.sameValue(unreachable, 0, 'Unreachable statement was not executed'); +assert.sameValue(result.value, 888); +assert(result.done, 'Iterator correctly closed'); +assert.sameValue(thisValue, iterator, 'correct `this` value'); +assert(!!args, 'arguments object provided'); +assert.sameValue(args.length, 0, 'zero arguments specified'); + +reportCompare(0, 0); |