89 lines
2.4 KiB
TypeScript
89 lines
2.4 KiB
TypeScript
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interface Error {
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constructor: ErrorConstructor;
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name: string;
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message: string;
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stack: string[];
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}
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interface ErrorConstructor {
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(msg?: any): Error;
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new (msg?: any): Error;
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prototype: Error;
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}
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interface TypeErrorConstructor extends ErrorConstructor {
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(msg?: any): TypeError;
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new (msg?: any): TypeError;
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prototype: Error;
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}
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interface TypeError extends Error {
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constructor: TypeErrorConstructor;
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name: 'TypeError';
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}
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interface RangeErrorConstructor extends ErrorConstructor {
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(msg?: any): RangeError;
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new (msg?: any): RangeError;
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prototype: Error;
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}
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interface RangeError extends Error {
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constructor: RangeErrorConstructor;
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name: 'RangeError';
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}
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interface SyntaxErrorConstructor extends ErrorConstructor {
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(msg?: any): RangeError;
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new (msg?: any): RangeError;
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prototype: Error;
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}
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interface SyntaxError extends Error {
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constructor: SyntaxErrorConstructor;
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name: 'SyntaxError';
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}
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declare var Error: ErrorConstructor;
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declare var RangeError: RangeErrorConstructor;
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declare var TypeError: TypeErrorConstructor;
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declare var SyntaxError: SyntaxErrorConstructor;
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gt.Error = function Error(msg: string) {
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if (msg === undefined) msg = '';
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else msg += '';
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return Object.setPrototypeOf({
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message: msg,
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stack: [] as string[],
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}, Error.prototype);
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} as ErrorConstructor;
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Error.prototype = internals.err ?? {};
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Error.prototype.name = 'Error';
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setConstr(Error.prototype, Error);
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Error.prototype.toString = function() {
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if (!(this instanceof Error)) return '';
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if (this.message === '') return this.name;
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else return this.name + ': ' + this.message;
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};
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function makeError<T extends ErrorConstructor>(name: string, proto: any): T {
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var err = function (msg: string) {
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var res = new Error(msg);
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(res as any).__proto__ = err.prototype;
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return res;
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} as T;
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err.prototype = proto;
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err.prototype.name = name;
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setConstr(err.prototype, err as ErrorConstructor);
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(err.prototype as any).__proto__ = Error.prototype;
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(err as any).__proto__ = Error;
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internals.special(err);
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return err;
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}
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gt.RangeError = makeError('RangeError', internals.range ?? {});
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gt.TypeError = makeError('TypeError', internals.type ?? {});
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gt.SyntaxError = makeError('SyntaxError', internals.syntax ?? {});
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