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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-await-of/async-gen-decl-dstr-array-elision-iter-nrml-close-skip.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-await-of/async-gen-decl-dstr-array-elision-iter-nrml-close-skip.js')
-rw-r--r-- | js/src/tests/test262/language/statements/for-await-of/async-gen-decl-dstr-array-elision-iter-nrml-close-skip.js | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/for-await-of/async-gen-decl-dstr-array-elision-iter-nrml-close-skip.js b/js/src/tests/test262/language/statements/for-await-of/async-gen-decl-dstr-array-elision-iter-nrml-close-skip.js new file mode 100644 index 0000000000..2435e768d9 --- /dev/null +++ b/js/src/tests/test262/language/statements/for-await-of/async-gen-decl-dstr-array-elision-iter-nrml-close-skip.js @@ -0,0 +1,70 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/dstr-assignment-for-await/array-elision-iter-nrml-close-skip.case +// - src/dstr-assignment-for-await/async-generator/async-gen-decl.template +/*--- +description: IteratorClose is not called when iteration has exhausted the iterator (for-await-of statement in an async generator declaration) +esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation +features: [Symbol.iterator, destructuring-binding, async-iteration] +flags: [generated, async] +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. + [...] + + ArrayAssignmentPattern : [ Elision ] + + 1. Let iterator be ? GetIterator(value). + + [...] + + 4. If iteratorRecord.[[Done]] is false, return ? IteratorClose(iterator, result).. + [...] + +---*/ +let nextCount = 0; +let returnCount = 0; +let iterator = { + next() { + nextCount += 1; + return { done: true }; + }, + return() { + returnCount += 1; + return {}; + } +}; +let iterable = { + [Symbol.iterator]() { + return iterator; + } +}; + +let iterCount = 0; +async function * fn() { + for await ([ , ] of [iterable]) { + assert.sameValue(nextCount, 1); + assert.sameValue(returnCount, 0); + + iterCount += 1; + } +} + +let iter = fn(); + +iter.next() + .then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE) + .then($DONE, $DONE); |