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var isFunction = require('./isFunction'),    isMasked = require('./_isMasked'),    isObject = require('./isObject'),    toSource = require('./_toSource');
/** * Used to match `RegExp` * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns). */var reRegExpChar = /[\\^$.*+?()[\]{}|]/g;
/** Used to detect host constructors (Safari). */var reIsHostCtor = /^\[object .+?Constructor\]$/;
/** Used for built-in method references. */var funcProto = Function.prototype,    objectProto = Object.prototype;
/** Used to resolve the decompiled source of functions. */var funcToString = funcProto.toString;
/** Used to check objects for own properties. */var hasOwnProperty = objectProto.hasOwnProperty;
/** Used to detect if a method is native. */var reIsNative = RegExp('^' +  funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&')  .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$');
/** * The base implementation of `_.isNative` without bad shim checks. * * @private * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a native function, *  else `false`. */function baseIsNative(value) {  if (!isObject(value) || isMasked(value)) {    return false;  }  var pattern = isFunction(value) ? reIsNative : reIsHostCtor;  return pattern.test(toSource(value));}
module.exports = baseIsNative;