// Copyright (C) 2019 Leo Balter. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- esid: sec-Intl.DisplayNames description: > Return abrupt completion from GetOption fallback info: | Intl.DisplayNames ( locales , options ) 1. If NewTarget is undefined, throw a TypeError exception. 2. Let displayNames be ? OrdinaryCreateFromConstructor(NewTarget, "%DisplayNamesPrototype%", « [[InitializedDisplayNames]], [[Locale]], [[Style]], [[Type]], [[Fallback]], [[Fields]] »). ... 4. Let options be ? ToObject(options). ... 8. Let matcher be ? GetOption(options, "localeMatcher", "string", « "lookup", "best fit" », "best fit"). ... 10. Let style be ? GetOption(options, "style", "string", « "narrow", "short", "long" », "long"). ... 12. Let type be ? GetOption(options, "type", "string", « "language", "region", "script", "currency" », undefined). 13. If type is undefined, throw a TypeError exception. GetOption ( options, property, type, values, fallback ) 1. Let value be ? Get(options, property). ... features: [Intl.DisplayNames, Symbol] locale: [en] ---*/ assert.throws(Test262Error, () => { new Intl.DisplayNames('en', { type: 'language', fallback: { toString() { throw new Test262Error(); }} }); }, 'from toString'); assert.throws(Test262Error, () => { new Intl.DisplayNames('en', { type: 'language', fallback: {toString: undefined, valueOf() {throw new Test262Error(); }} }); }, 'from valueOf'); assert.throws(Test262Error, () => { new Intl.DisplayNames('en', { type: 'language', fallback: { [Symbol.toPrimitive]() { throw new Test262Error(); } } }); }, 'from ToPrimitive'); assert.throws(TypeError, () => { new Intl.DisplayNames('en', { type: 'language', fallback: Symbol() }); }, 'symbol value'); reportCompare(0, 0);