55 lines
1.1 KiB
Plaintext
55 lines
1.1 KiB
Plaintext
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export abstract class ExtendableError extends Error {
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name: string;
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private _error: Error;
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private _stack: string;
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constructor(
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public message = '',
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) {
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super(message);
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Object.setPrototypeOf(this, new.target.prototype);
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delete (<Error>this).stack;
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this.name = new.target.name;
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this._error = new Error();
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}
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get stack(): string {
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if (this._stack) {
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return this._stack;
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}
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let prototype = Object.getPrototypeOf(this);
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let depth = 1;
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loop:
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while (prototype) {
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switch (prototype) {
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case ExtendableError.prototype:
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break loop;
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case Object.prototype:
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depth = 1;
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break loop;
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default:
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depth++;
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break;
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}
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prototype = Object.getPrototypeOf(prototype);
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}
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let stackLines = (this._error.stack || '').match(/.+/g) || [];
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let nameLine = this.name;
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if (this.message) {
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nameLine += `: ${this.message}`;
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}
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stackLines.splice(0, depth + 1, nameLine);
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return this._stack = stackLines.join('\n');
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}
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}
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export default ExtendableError;
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