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b3092c61b6
* Add missing generators feature flags * Generate files * Add generators flags * fixup! Add generators flags
43 lines
1.1 KiB
JavaScript
43 lines
1.1 KiB
JavaScript
// Copyright (C) 2016 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-generator-function-definitions-runtime-semantics-evaluation
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es6id: 14.4.14
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description: TypeError thrown when @@iterator method returns a non-object value
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info: |
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YieldExpression : yield * AssignmentExpression
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1. Let exprRef be the result of evaluating AssignmentExpression.
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2. Let value be ? GetValue(exprRef).
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3. Let iterator be ? GetIterator(value).
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7.4.1 GetIterator
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1. If method was not passed, then
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a. Let method be ? GetMethod(obj, @@iterator).
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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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features: [generators, Symbol.iterator]
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---*/
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var badIter = {};
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badIter[Symbol.iterator] = function() {
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return 7;
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};
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function* g() {
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try {
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yield * badIter;
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} catch (err) {
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caught = err;
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}
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}
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var iter = g();
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var result, caught;
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result = iter.next();
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assert.sameValue(result.value, undefined);
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assert.sameValue(result.done, true);
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assert.sameValue(typeof caught, 'object');
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assert.sameValue(caught.constructor, TypeError);
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