v8/test/mjsunit/harmony/string-split.js
yangguo 9a569ec2c8 [es6] Implement @@split subclassing.
RegExp.prototye[@@split] is not yet implement to spec regarding creating
new RegExp object with the SpeciesConstructor.

R=littledan@chromium.org
BUG=v8:4345
LOG=N

Review URL: https://codereview.chromium.org/1427573005

Cr-Commit-Position: refs/heads/master@{#31911}
2015-11-10 07:00:44 +00:00

22 lines
734 B
JavaScript

// Copyright 2015 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --harmony-regexp-subclass
var pattern = {};
var limit = { value: 3 };
pattern[Symbol.split] = function(string, limit) {
return string.length * limit.value;
};
// Check object coercible fails.
assertThrows(() => String.prototype.split.call(null, pattern, limit),
TypeError);
// Override is called.
assertEquals(15, "abcde".split(pattern, limit));
// Non-callable override.
pattern[Symbol.split] = "dumdidum";
assertThrows(() => "abcde".split(pattern, limit), TypeError);
assertEquals("[Symbol.split]", RegExp.prototype[Symbol.split].name);