39 lines
1.3 KiB
TypeScript
39 lines
1.3 KiB
TypeScript
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interface Symbol {
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valueOf(): symbol;
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constructor: SymbolConstructor;
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}
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interface SymbolConstructor {
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(val?: any): symbol;
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prototype: Symbol;
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for(key: string): symbol;
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keyFor(sym: symbol): string;
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readonly typeName: unique symbol;
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}
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declare var Symbol: SymbolConstructor;
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gt.Symbol = function(this: any, val?: string) {
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if (this !== undefined && this !== null) throw new TypeError("Symbol may not be called with 'new'.");
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if (typeof val !== 'string' && val !== undefined) throw new TypeError('val must be a string or undefined.');
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return internals.symbol(val, true);
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} as SymbolConstructor;
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Symbol.prototype = internals.symbolProto;
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setConstr(Symbol.prototype, Symbol);
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(Symbol as any).typeName = Symbol("Symbol.name");
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setProps(Symbol, {
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for(key) {
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if (typeof key !== 'string' && key !== undefined) throw new TypeError('key must be a string or undefined.');
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return internals.symbol(key, false);
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},
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keyFor(sym) {
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if (typeof sym !== 'symbol') throw new TypeError('sym must be a symbol.');
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return internals.symStr(sym);
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},
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typeName: Symbol('Symbol.name') as any,
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});
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Object.defineProperty(Object.prototype, Symbol.typeName, { value: 'Object' });
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Object.defineProperty(gt, Symbol.typeName, { value: 'Window' });
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