--- /dev/null
+var global = require('./_global')
+ , hide = require('./_hide')
+ , has = require('./_has')
+ , SRC = require('./_uid')('src')
+ , TO_STRING = 'toString'
+ , $toString = Function[TO_STRING]
+ , TPL = ('' + $toString).split(TO_STRING);
+
+require('./_core').inspectSource = function(it){
+ return $toString.call(it);
+};
+
+(module.exports = function(O, key, val, safe){
+ var isFunction = typeof val == 'function';
+ if(isFunction)has(val, 'name') || hide(val, 'name', key);
+ if(O[key] === val)return;
+ if(isFunction)has(val, SRC) || hide(val, SRC, O[key] ? '' + O[key] : TPL.join(String(key)));
+ if(O === global){
+ O[key] = val;
+ } else {
+ if(!safe){
+ delete O[key];
+ hide(O, key, val);
+ } else {
+ if(O[key])O[key] = val;
+ else hide(O, key, val);
+ }
+ }
+// add fake Function#toString for correct work wrapped methods / constructors with methods like LoDash isNative
+})(Function.prototype, TO_STRING, function toString(){
+ return typeof this == 'function' && this[SRC] || $toString.call(this);
+});
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