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