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- 'use strict';
- var DESCRIPTORS = require('../internals/descriptors');
- var fails = require('../internals/fails');
- var anObject = require('../internals/an-object');
- var create = require('../internals/object-create');
- var normalizeStringArgument = require('../internals/normalize-string-argument');
- var nativeErrorToString = Error.prototype.toString;
- var INCORRECT_TO_STRING = fails(function () {
- if (DESCRIPTORS) {
- // Chrome 32- incorrectly call accessor
- // eslint-disable-next-line es-x/no-object-defineproperty -- safe
- var object = create(Object.defineProperty({}, 'name', { get: function () {
- return this === object;
- } }));
- if (nativeErrorToString.call(object) !== 'true') return true;
- }
- // FF10- does not properly handle non-strings
- return nativeErrorToString.call({ message: 1, name: 2 }) !== '2: 1'
- // IE8 does not properly handle defaults
- || nativeErrorToString.call({}) !== 'Error';
- });
- module.exports = INCORRECT_TO_STRING ? function toString() {
- var O = anObject(this);
- var name = normalizeStringArgument(O.name, 'Error');
- var message = normalizeStringArgument(O.message);
- return !name ? message : !message ? name : name + ': ' + message;
- } : nativeErrorToString;
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