“use strict”; const addConstants = require(“../utils”).addConstants; const table = require(“./dom-exception-table.json”); // heycam.github.io/webidl/#idl-DOMException-error-names
// Precompute some stuff. Mostly unnecessary once we take care of the TODO below. const namesWithCodes = Object.keys(table).filter(name => “legacyCodeValue” in table);
const codesToNames = Object.create(null); for (const name of namesWithCodes) {
codesToNames[table[name].legacyCodeValue] = name;
}
module.exports = DOMException;
// TODO: update constructor signature to match WebIDL spec // See also github.com/heycam/webidl/pull/22 which isn't merged as of yet function DOMException(code, message) {
const name = codesToNames[code]; if (message === undefined) { message = table[name].description; } Error.call(this, message); Object.defineProperty(this, "name", { value: name, writable: true, configurable: true, enumerable: false }); Object.defineProperty(this, "code", { value: code, writable: true, configurable: true, enumerable: false }); if (Error.captureStackTrace) { Error.captureStackTrace(this, DOMException); }
}
Object.setPrototypeOf(DOMException, Error); Object.setPrototypeOf(DOMException.prototype, Error.prototype);
const constants = Object.create(null); for (const name of namesWithCodes) {
constants[table[name].legacyCodeName] = table[name].legacyCodeValue;
}
addConstants(DOMException, constants);