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Add setToString helper.

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This commit is contained in:
John-David Dalton
2016-08-15 22:00:43 -07:00
parent d11aa6de06
commit f9936b8b54
1 changed files with 21 additions and 9 deletions
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30
lodash.js
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@@ -3781,7 +3781,7 @@
*/ */
function baseRest(func, start) { function baseRest(func, start) {
start = nativeMax(start === undefined ? (func.length - 1) : start, 0); start = nativeMax(start === undefined ? (func.length - 1) : start, 0);
return function() { return setToString(function() {
var args = arguments, var args = arguments,
index = -1, index = -1,
length = nativeMax(args.length - start, 0), length = nativeMax(args.length - start, 0),
@@ -3797,7 +3797,7 @@
} }
otherArgs[start] = array; otherArgs[start] = array;
return apply(func, this, otherArgs); return apply(func, this, otherArgs);
}; }, func + '');
} }
/** /**
@@ -6313,6 +6313,22 @@
return root.setTimeout(func, wait); return root.setTimeout(func, wait);
}; };
/**
* Sets the `toString` method of `func` to return `string`.
*
* @private
* @param {Function} func The function to modify.
* @param {Function} string The `toString` result.
* @returns {Function} Returns `func`.
*/
var setToString = !defineProperty ? identity : function(func, string) {
return defineProperty(func, 'toString', {
'configurable': true,
'enumerable': false,
'value': constant(string)
});
};
/** /**
* Sets the `toString` method of `wrapper` to mimic the source of `reference` * Sets the `toString` method of `wrapper` to mimic the source of `reference`
* with wrapper details in a comment at the top of the source body. * with wrapper details in a comment at the top of the source body.
@@ -6323,14 +6339,10 @@
* @param {number} bitmask The bitmask flags. See `createWrap` for more details. * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
* @returns {Function} Returns `wrapper`. * @returns {Function} Returns `wrapper`.
*/ */
var setWrapToString = !defineProperty ? identity : function(wrapper, reference, bitmask) { function setWrapToString(wrapper, reference, bitmask) {
var source = (reference + ''); var source = (reference + '');
return defineProperty(wrapper, 'toString', { return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask)));
'configurable': true, }
'enumerable': false,
'value': constant(insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask)))
});
};
/** /**
* Converts `string` to a property path array. * Converts `string` to a property path array.