mirror of https://github.com/tc39/test262.git
65 lines
1.7 KiB
JavaScript
65 lines
1.7 KiB
JavaScript
// This file was procedurally generated from the following sources:
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// - src/spread/sngl-err-itr-value.case
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// - src/spread/error/member-expr.template
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/*---
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description: Spread operator applied to the only argument when IteratorValue fails (`new` operator)
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esid: sec-new-operator-runtime-semantics-evaluation
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es6id: 12.3.3.1
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features: [Symbol.iterator]
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flags: [generated]
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info: |
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MemberExpression : new MemberExpression Arguments
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1. Return EvaluateNew(MemberExpression, Arguments).
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12.3.3.1.1 Runtime Semantics: EvaluateNew
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6. If arguments is empty, let argList be an empty List.
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7. Else,
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a. Let argList be ArgumentListEvaluation of arguments.
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[...]
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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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6. Repeat
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a. Let next be IteratorStep(iterator).
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b. ReturnIfAbrupt(next).
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c. If next is false, return list.
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d. Let nextArg be IteratorValue(next).
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e. ReturnIfAbrupt(nextArg).
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7.4.4 IteratorValue ( iterResult )
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1. Assert: Type(iterResult) is Object.
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2. Return Get(iterResult, "value").
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7.3.1 Get (O, P)
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[...]
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3. Return O.[[Get]](P, O).
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---*/
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var iter = {};
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var poisonedValue = Object.defineProperty({}, 'value', {
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get: function() {
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throw new Test262Error();
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}
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});
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iter[Symbol.iterator] = function() {
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return {
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next: function() {
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return poisonedValue;
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}
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};
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};
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assert.throws(Test262Error, function() {
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new function() {}(...iter);
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});
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