mirror of https://github.com/tc39/test262.git
56 lines
1.7 KiB
JavaScript
56 lines
1.7 KiB
JavaScript
// Copyright (C) 2021 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-Intl.DisplayNames
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description: >
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Return abrupt completion from GetOption fallback
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info: |
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Intl.DisplayNames ( locales , options )
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1. If NewTarget is undefined, throw a TypeError exception.
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2. Let displayNames be ? OrdinaryCreateFromConstructor(NewTarget, "%DisplayNamesPrototype%",
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« [[InitializedDisplayNames]], [[Locale]], [[Style]], [[Type]], [[Fallback]], [[Fields]] »).
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...
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4. Let options be ? ToObject(options).
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...
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8. Let matcher be ? GetOption(options, "localeMatcher", "string", « "lookup", "best fit" », "best fit").
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...
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24. Let languageDisplay be ? GetOption(options, "languageDisplay", "string", « "dialect", "standard" », "dialect").
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...
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GetOption ( options, property, type, values, fallback )
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1. Let value be ? Get(options, property).
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...
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features: [Intl.DisplayNames-v2, Symbol]
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locale: [en]
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---*/
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assert.throws(Test262Error, () => {
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new Intl.DisplayNames('en', {
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type: 'language', languageDisplay: { toString() { throw new Test262Error(); }}
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});
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}, 'from toString');
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assert.throws(Test262Error, () => {
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new Intl.DisplayNames('en', {
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type: 'language',
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languageDisplay: {toString: undefined, valueOf() {throw new Test262Error(); }}
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});
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}, 'from valueOf');
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assert.throws(Test262Error, () => {
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new Intl.DisplayNames('en', {
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type: 'language',
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languageDisplay: { [Symbol.toPrimitive]() { throw new Test262Error(); } }
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});
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}, 'from ToPrimitive');
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assert.throws(TypeError, () => {
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new Intl.DisplayNames('en', {
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type: 'language',
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languageDisplay: Symbol()
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});
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}, 'symbol value');
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