diff options
Diffstat (limited to 'js/src/tests/test262/language/expressions/array/spread-err-mult-err-itr-step.js')
-rw-r--r-- | js/src/tests/test262/language/expressions/array/spread-err-mult-err-itr-step.js | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/expressions/array/spread-err-mult-err-itr-step.js b/js/src/tests/test262/language/expressions/array/spread-err-mult-err-itr-step.js new file mode 100644 index 0000000000..f55ade0a5e --- /dev/null +++ b/js/src/tests/test262/language/expressions/array/spread-err-mult-err-itr-step.js @@ -0,0 +1,58 @@ +// This file was procedurally generated from the following sources: +// - src/spread/mult-err-itr-step.case +// - src/spread/error/array.template +/*--- +description: Spread operator following other arguments when IteratorStep fails (Array initializer) +esid: sec-runtime-semantics-arrayaccumulation +features: [Symbol.iterator] +flags: [generated] +info: | + SpreadElement : ...AssignmentExpression + + 1. Let spreadRef be the result of evaluating AssignmentExpression. + 2. Let spreadObj be ? GetValue(spreadRef). + 3. Let iterator be ? GetIterator(spreadObj). + 4. Repeat + a. Let next be ? IteratorStep(iterator). + b. If next is false, return nextIndex. + c. Let nextValue be ? IteratorValue(next). + d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)), + nextValue). + e. Assert: status is true. + f. Let nextIndex be nextIndex + 1. + + 12.3.6.1 Runtime Semantics: ArgumentListEvaluation + + ArgumentList : ArgumentList , ... AssignmentExpression + + 1. Let precedingArgs be the result of evaluating ArgumentList. + 2. Let spreadRef be the result of evaluating AssignmentExpression. + 3. Let iterator be GetIterator(GetValue(spreadRef) ). + 4. ReturnIfAbrupt(iterator). + + 7.4.5 IteratorStep ( iterator ) + + 1. Let result be IteratorNext(iterator). + 2. ReturnIfAbrupt(result). + + 7.4.2 IteratorNext ( iterator, value ) + + 1. If value was not passed, then + a. Let result be Invoke(iterator, "next", « »). + [...] + 3. ReturnIfAbrupt(result). +---*/ +var iter = {}; +iter[Symbol.iterator] = function() { + return { + next: function() { + throw new Test262Error(); + } + }; +}; + +assert.throws(Test262Error, function() { + [0, ...iter]; +}); + +reportCompare(0, 0); |