6dffb07804
When calling the return method on a generator suspended inside a yield*, yield* in turn calls return on its iterable. If this results in a "done" iterator, yield* must return immediately, thus terminating the generator. For some reason, we didn't terminate the generator but continued right after the yield*. R=adamk@chromium.org BUG=v8:5131 Review-Url: https://codereview.chromium.org/2100093002 Cr-Commit-Position: refs/heads/master@{#37310}
91 lines
2.1 KiB
JavaScript
91 lines
2.1 KiB
JavaScript
// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --harmony-function-sent
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{
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function* g() { return function.sent }
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assertEquals({value: 42, done: true}, g().next(42));
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}
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{
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function* g() {
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try {
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yield function.sent;
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} finally {
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yield function.sent;
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return function.sent;
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}
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}
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{
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let x = g();
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assertEquals({value: 1, done: false}, x.next(1));
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assertEquals({value: 2, done: false}, x.next(2));
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assertEquals({value: 3, done: true}, x.next(3));
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}
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{
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let x = g();
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assertEquals({value: 1, done: false}, x.next(1));
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assertEquals({value: 2, done: false}, x.throw(2));
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assertEquals({value: 3, done: true}, x.next(3));
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}
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{
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let x = g();
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assertEquals({value: 1, done: false}, x.next(1));
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assertEquals({value: 2, done: false}, x.return(2));
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assertEquals({value: 3, done: true}, x.next(3));
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}
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}
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{
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function* inner() {
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try {
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yield function.sent;
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} finally {
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return 23;
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}
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}
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function* g() {
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yield function.sent;
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yield* inner();
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return function.sent;
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}
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{
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let x = g();
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assertEquals({value: 1, done: false}, x.next(1));
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assertEquals({value: undefined, done: false}, x.next(2));
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assertEquals({value: 3, done: true}, x.next(3));
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}
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{
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let x = g();
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assertEquals({value: 1, done: false}, x.next(1));
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assertEquals({value: undefined, done: false}, x.next(2));
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assertEquals({value: 42, done: true}, x.throw(42));
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}
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{
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let x = g();
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assertEquals({value: 1, done: false}, x.next(1));
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assertEquals({value: undefined, done: false}, x.next(2));
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assertEquals({value: 23, done: true}, x.return(42));
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}
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}
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assertThrows("function f() { return function.sent }", SyntaxError);
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assertThrows("() => { return function.sent }", SyntaxError);
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assertThrows("() => { function.sent }", SyntaxError);
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assertThrows("() => function.sent", SyntaxError);
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assertThrows("({*f() { function.sent }})", SyntaxError);
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assertDoesNotThrow("({*f() { return function.sent }})");
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