'use strict';
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var $ = require('../internals/export');
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var getBuiltIn = require('../internals/get-built-in');
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var isObject = require('../internals/is-object');
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var classof = require('../internals/classof');
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var fails = require('../internals/fails');
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var ERROR = 'Error';
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var DOM_EXCEPTION = 'DOMException';
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// eslint-disable-next-line es/no-object-setprototypeof, no-proto -- safe
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var PROTOTYPE_SETTING_AVAILABLE = Object.setPrototypeOf || ({}).__proto__;
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var DOMException = getBuiltIn(DOM_EXCEPTION);
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var $Error = Error;
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var $isError = $Error.isError;
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var FORCED = !$isError || !PROTOTYPE_SETTING_AVAILABLE || fails(function () {
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// Bun, isNativeError-based implementations, some buggy structuredClone-based implementations, etc.
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// https://github.com/oven-sh/bun/issues/15821
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return (DOMException && !$isError(new DOMException(DOM_EXCEPTION))) ||
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// structuredClone-based implementations
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// eslint-disable-next-line es/no-error-cause -- detection
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!$isError(new $Error(ERROR, { cause: function () { /* empty */ } })) ||
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// instanceof-based and FF Error#stack-based implementations
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$isError(getBuiltIn('Object', 'create')($Error.prototype));
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});
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// `Error.isError` method
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// https://github.com/tc39/proposal-is-error
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$({ target: 'Error', stat: true, sham: true, forced: FORCED }, {
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isError: function isError(arg) {
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if (!isObject(arg)) return false;
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var tag = classof(arg);
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return tag === ERROR || tag === DOM_EXCEPTION;
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}
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});
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