mirror of https://github.com/tc39/test262.git
48 lines
1.5 KiB
JavaScript
48 lines
1.5 KiB
JavaScript
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// This file was procedurally generated from the following sources:
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// - src/spread/sngl-err-itr-get-value.case
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// - src/spread/error/array.template
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/*---
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description: Spread operator applied to the only argument when GetIterator fails (@@iterator function return value) (Array initializer)
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esid: sec-runtime-semantics-arrayaccumulation
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features: [Symbol.iterator]
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flags: [generated]
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info: |
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SpreadElement : ...AssignmentExpression
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1. Let spreadRef be the result of evaluating AssignmentExpression.
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2. Let spreadObj be ? GetValue(spreadRef).
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3. Let iterator be ? GetIterator(spreadObj).
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4. Repeat
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a. Let next be ? IteratorStep(iterator).
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b. If next is false, return nextIndex.
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c. Let nextValue be ? IteratorValue(next).
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d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
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nextValue).
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e. Assert: status is true.
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f. Let nextIndex be nextIndex + 1.
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12.3.6.1 Runtime Semantics: ArgumentListEvaluation
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ArgumentList : ... AssignmentExpression
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1. Let list be an empty List.
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2. Let spreadRef be the result of evaluating AssignmentExpression.
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3. Let spreadObj be GetValue(spreadRef).
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4. Let iterator be GetIterator(spreadObj).
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5. ReturnIfAbrupt(iterator).
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7.4.1 GetIterator ( obj, method )
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[...]
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2. Let iterator be ? Call(method, obj).
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3. If Type(iterator) is not Object, throw a TypeError exception.
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---*/
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var iter = {};
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iter[Symbol.iterator] = function() {
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return null;
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};
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assert.throws(TypeError, function() {
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[...iter];
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});
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