3b39fc4dcd
Proposal repo: https://github.com/tc39/proposal-string-matchall - Add new builtins StringPrototypeMatchAll and RegExpPrototypeMatchAll - Add new object RegExpStringIterator Bug: v8:6890 Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng Change-Id: I9fad71900cf30e8632258c309df1c7a638ea4600 Reviewed-on: https://chromium-review.googlesource.com/981893 Commit-Queue: Peter Wong <peter.wm.wong@gmail.com> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#52403}
101 lines
2.5 KiB
JavaScript
101 lines
2.5 KiB
JavaScript
// Copyright 2018 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-string-matchall
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(function TestReceiverNonString() {
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const iter = 'a'.matchAll(/./);
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assertThrows(
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() => iter.next.call(0),
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TypeError
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);
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})();
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(function TestAncestry() {
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const iterProto = Object.getPrototypeOf('a'.matchAll(/./));
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const arrProto = Object.getPrototypeOf([][Symbol.iterator]());
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assertSame(Object.getPrototypeOf(iterProto), Object.getPrototypeOf(arrProto));
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})();
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function TestNoMatch(string, regex_or_string) {
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const next_result = string.matchAll(regex_or_string).next();
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assertSame(undefined, next_result.value);
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assertTrue(next_result.done);
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}
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TestNoMatch('a', /b/);
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TestNoMatch('a', /b/g);
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TestNoMatch('a', 'b');
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(function NonGlobalRegex() {
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const iter = 'ab'.matchAll(/./);
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let next_result = iter.next();
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assertEquals(['a'], next_result.value);
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assertFalse(next_result.done);
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next_result = iter.next();
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assertEquals(undefined, next_result.value);
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assertTrue(next_result.done);
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})();
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function TestGlobalRegex(regex_or_string) {
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const iter = 'ab'.matchAll(/./g);
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let next_result = iter.next();
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assertEquals(['a'], next_result.value);
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assertFalse(next_result.done);
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next_result = iter.next();
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assertEquals(['b'], next_result.value);
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assertFalse(next_result.done);
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next_result = iter.next();
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assertSame(undefined, next_result.value);
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assertTrue(next_result.done);
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}
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TestGlobalRegex(/./g);
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TestGlobalRegex('.');
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function TestEmptyGlobalRegExp(regex_or_string) {
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const iter = 'd'.matchAll(regex_or_string);
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let next_result = iter.next();
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assertEquals([''], next_result.value);
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assertFalse(next_result.done);
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next_result = iter.next();
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assertEquals([''], next_result.value);
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assertFalse(next_result.done);
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next_result = iter.next();
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assertSame(undefined, next_result.value);
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assertTrue(next_result.done);
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}
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TestEmptyGlobalRegExp(undefined);
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TestEmptyGlobalRegExp(/(?:)/g);
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TestEmptyGlobalRegExp('');
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(function TestGlobalRegExpLastIndex() {
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const regex = /./g;
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const string = 'abc';
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regex.exec(string);
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assertSame(1, regex.lastIndex);
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const iter = string.matchAll(regex);
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// Verify an internal RegExp is created and mutations to the provided RegExp
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// are not abservered.
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regex.exec(string);
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assertSame(2, regex.lastIndex);
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let next_result = iter.next();
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assertEquals(['b'], next_result.value);
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assertFalse(next_result.done);
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assertSame(2, regex.lastIndex);
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})();
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