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// |reftest| skip-if(!this.hasOwnProperty("Intl"))
function IsIntlService(c) {
return typeof c === "function" &&
c.hasOwnProperty("prototype") &&
c.prototype.hasOwnProperty("resolvedOptions");
}
function thisValues() {
const intlConstructors = Object.getOwnPropertyNames(Intl).map(name => Intl[name]).filter(IsIntlService);
return [
// Primitive values.
...[undefined, null, true, "abc", Symbol(), 123],
// Object values.
...[{}, [], /(?:)/, function(){}, new Proxy({}, {})],
// Intl objects.
...[].concat(...intlConstructors.map(ctor => {
let args = [];
if (ctor === Intl.DisplayNames) {
// Intl.DisplayNames can't be constructed without any arguments.
args = [undefined, {type: "language"}];
}
return [
// Instance of an Intl constructor.
new ctor(...args),
// Instance of a subclassed Intl constructor.
new class extends ctor {}(...args),
// Object inheriting from an Intl constructor prototype.
Object.create(ctor.prototype),
// Intl object not inheriting from its default prototype.
Object.setPrototypeOf(new ctor(...args), Object.prototype),
];
})),
];
}
// Intl.PluralRules cannot be invoked as a function.
assertThrowsInstanceOf(() => Intl.PluralRules(), TypeError);
// Also test with explicit this-value.
for (let thisValue of thisValues()) {
assertThrowsInstanceOf(() => Intl.PluralRules.call(thisValue), TypeError);
}
if (typeof reportCompare === "function")
reportCompare(true, true);