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Correct removing ES5 features from createBound for non modern builds.

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Former-commit-id: 35aacb52d1bfbd18630460f0c8e21e4fd5d716ea
This commit is contained in:
John-David Dalton
2013-08-09 00:14:39 -07:00
parent 8fb9557520
commit fe2b86ba83
5 changed files with 163 additions and 124 deletions
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60
dist/lodash.underscore.js vendored
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@@ -180,7 +180,8 @@
floor = Math.floor,
hasOwnProperty = objectProto.hasOwnProperty,
push = arrayRef.push,
toString = objectProto.toString;
toString = objectProto.toString,
unshift = arrayRef.unshift;
/* Native method shortcuts for methods with the same name as other `lodash` methods */
var nativeBind = reNative.test(nativeBind = toString.bind) && nativeBind,
@@ -622,30 +623,47 @@
if (!isBindKey && !isFunction(func)) {
throw new TypeError;
}
var bindData = func && func.__bindData__;
if (bindData) {
if (isBind && !(bindData[1] & 1)) {
bindData[4] = thisArg;
}
if (isCurry && !(bindData[1] & 4)) {
bindData[5] = arity;
}
if (partialArgs) {
push.apply(bindData[2] || (bindData[2] = []), partialArgs);
}
if (partialRightArgs) {
push.apply(bindData[3] || (bindData[3] = []), partialRightArgs);
}
bindData[1] |= bitmask;
return createBound.apply(null, bindData);
}
// use `Function#bind` if it exists and is fast
// (in V8 `Function#bind` is slower except when partially applied)
if (isBind && !(isBindKey || isCurry || isPartialRight) &&
(support.fastBind || (nativeBind && partialArgs.length))) {;
(support.fastBind || (nativeBind && partialArgs.length))) {
var args = [func, thisArg];
push.apply(args, partialArgs);
var bound = nativeBind.call.apply(nativeBind, args);
}
else {
bound = function() {
// `Function#bind` spec
// http://es5.github.io/#x15.3.4.5
var args = arguments,
thisBinding = isBind ? thisArg : this;
if (partialArgs) {
unshift.apply(args, partialArgs);
}
if (partialRightArgs) {
push.apply(args, partialRightArgs);
}
if (isCurry && args.length < arity) {
bindData[2] = args;
bindData[3] = null;
return createBound(bound, bitmask & ~8 & ~16);
}
if (isBindKey) {
func = thisBinding[key];
}
if (this instanceof bound) {
// ensure `new bound` is an instance of `func`
thisBinding = createObject(func.prototype);
// mimic the constructor's `return` behavior
// http://es5.github.io/#x13.2.2
var result = func.apply(thisBinding, args);
return isObject(result) ? result : thisBinding;
}
return func.apply(thisBinding, args);
};
}
// take a snapshot of `arguments` before juggling
bindData = nativeSlice.call(arguments);
if (isBindKey) {
var key = thisArg;
thisArg = func;