diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
---|---|---|
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-thrw-close-err.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-thrw-close-err.js')
-rw-r--r-- | js/src/tests/test262/language/statements/for-of/dstr/array-elem-trlg-iter-list-thrw-close-err.js | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/for-of/dstr/array-elem-trlg-iter-list-thrw-close-err.js b/js/src/tests/test262/language/statements/for-of/dstr/array-elem-trlg-iter-list-thrw-close-err.js new file mode 100644 index 0000000000..f7932463fb --- /dev/null +++ b/js/src/tests/test262/language/statements/for-of/dstr/array-elem-trlg-iter-list-thrw-close-err.js @@ -0,0 +1,84 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-assignment/array-elem-trlg-iter-list-thrw-close-err.case +// - src/dstr-assignment/error/for-of.template +/*--- +description: IteratorClose is invoked when evaluation of AssignmentElementList returns a "throw" 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, 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). + + 7.4.6 IteratorClose( iterator, completion ) + + [...] + 7. If completion.[[type]] is throw, return Completion(completion). + +---*/ +var nextCount = 0; +var returnCount = 0; +var iterable = {}; +var thrower = function() { + throw new Test262Error(); +}; +function ReturnError() {} +var iterator = { + next: function() { + nextCount += 1; + return { done: true }; + }, + return: function() { + returnCount += 1; + + // This value should be discarded. + throw new ReturnError(); + } +}; +iterable[Symbol.iterator] = function() { + return iterator; +}; + + +var counter = 0; + +assert.throws(Test262Error, function() { + for ([ {}[thrower()] , ] of [iterable]) { + counter += 1; + } + counter += 1; +}); + +assert.sameValue(counter, 0); + + +assert.sameValue(nextCount, 0); +assert.sameValue(returnCount, 1); + +reportCompare(0, 0); |