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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-elem-trlg-iter-rest-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-elem-trlg-iter-rest-nrml-close-skip.js')
-rw-r--r-- | js/src/tests/test262/language/statements/for-await-of/async-gen-decl-dstr-array-elem-trlg-iter-rest-nrml-close-skip.js | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/for-await-of/async-gen-decl-dstr-array-elem-trlg-iter-rest-nrml-close-skip.js b/js/src/tests/test262/language/statements/for-await-of/async-gen-decl-dstr-array-elem-trlg-iter-rest-nrml-close-skip.js new file mode 100644 index 0000000000..3e8ec83f3b --- /dev/null +++ b/js/src/tests/test262/language/statements/for-await-of/async-gen-decl-dstr-array-elem-trlg-iter-rest-nrml-close-skip.js @@ -0,0 +1,75 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/dstr-assignment-for-await/array-elem-trlg-iter-rest-nrml-close-skip.case +// - src/dstr-assignment-for-await/async-generator/async-gen-decl.template +/*--- +description: IteratorClose is not called when rest element evaluation 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 : + [ AssignmentElementList , Elisionopt AssignmentRestElementopt ] + + [...] + 6. If AssignmentRestElement is present, then + a. Let status be the result of performing + IteratorDestructuringAssignmentEvaluation of AssignmentRestElement + with iteratorRecord as the argument. + 7. If iteratorRecord.[[Done]] is false, return ? IteratorClose(iterator, status). + 8. Return Completion(status). + +---*/ +let nextCount = 0; +let returnCount = 0; +let x, y; +let iterator = { + next() { + nextCount += 1; + return { value: nextCount, done: nextCount > 1 }; + }, + return() { + returnCount += 1; + } +}; +let iterable = { + [Symbol.iterator]() { + return iterator; + } +}; + +let iterCount = 0; +async function * fn() { + for await ([ x , ...y ] of [iterable]) { + + iterCount += 1; + } +} + +let iter = fn(); + +iter.next().then(() => { + iter.return().then(() => { + assert.sameValue(nextCount, 2, 'nextCount'); + assert.sameValue(returnCount, 0, 'returnCount'); + assert.sameValue(x, 1, 'x'); + assert.sameValue(y.length, 0, 'y.length'); + }).then($DONE, $DONE); +}, $DONE).catch($DONE); |