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68 lines
1.9 KiB
JavaScript
68 lines
1.9 KiB
JavaScript
// Copyright (C) 2015 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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description: Initialization from a RegExp-like object (with flag overrides)
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es6id: 21.2.3.1
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info: |
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1. Let patternIsRegExp be IsRegExp(pattern).
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[...]
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6. Else if patternIsRegExp is true, then
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a. Let P be Get(pattern, "source").
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b. ReturnIfAbrupt(P).
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c. If flags is undefined, then
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[...]
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d. Else, let F be flags.
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[...]
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10. Return RegExpInitialize(O, P, F).
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features: [Symbol, Symbol.match]
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---*/
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var obj = {
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source: 'source text'
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};
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var result;
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Object.defineProperty(obj, 'flags', {
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get: function() {
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$ERROR('The `flags` property value should not be referenced.');
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}
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});
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obj[Symbol.match] = true;
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result = new RegExp(obj, 'g');
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assert.sameValue(
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result.source, 'source text', '@@match specified as a primitive boolean'
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);
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assert.sameValue(
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result.flags, 'g', '@@match specified as a primitive boolean'
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);
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obj[Symbol.match] = 'string';
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result = new RegExp(obj, 'g');
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assert.sameValue(
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result.source, 'source text', '@@match specified as a primitive string'
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);
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assert.sameValue(result.flags, 'g', '@@match specified as a primitive string');
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obj[Symbol.match] = [];
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result = new RegExp(obj, 'g');
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assert.sameValue(
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result.source, 'source text', '@@match specified as an array'
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);
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assert.sameValue(result.flags, 'g', '@@match specified as an array');
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obj[Symbol.match] = Symbol();
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result = new RegExp(obj, 'g');
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assert.sameValue(
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result.source, 'source text', '@@match specified as a Symbol'
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);
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assert.sameValue(result.flags, 'g', '@@match specified as a Symbol');
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obj[Symbol.match] = 86;
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result = new RegExp(obj, 'g');
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assert.sameValue(
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result.source, 'source text', '@@match specified as a primitive number'
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);
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assert.sameValue(result.flags, 'g', '@@match specified as a primitive number');
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