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Split createHybridWrapper into createCurryWrapper and createRecurryWrapper.

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John-David Dalton
2015-11-08 23:22:14 -08:00
parent 549918d7f9
commit 0dcf028592
1 changed files with 69 additions and 24 deletions
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93
lodash.js
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@@ -371,6 +371,16 @@
return set;
}
function apply(func, thisArg, args) {
switch(args.length) {
case 0: return func.call(thisArg);
case 1: return func.call(thisArg, args[0]);
case 2: return func.call(thisArg, args[0], args[1]);
case 3: return func.call(thisArg, args[0], args[1], args[2]);
}
return func.apply(thisArg, args);
}
/**
* Creates a new array concatenating `array` with `other`.
*
@@ -3905,6 +3915,32 @@
};
}
function createCurryWrapper(func, bitmask, arity) {
var Ctor = createCtorWrapper(func);
function wrapper() {
var length = arguments.length,
index = length,
args = Array(length);
while (index--) {
args[index] = arguments[index];
}
var placeholder = wrapper.placeholder,
argsHolders = replaceHolders(args, placeholder);
length -= argsHolders.length;
if (length < arity) {
var result = createRecurryWrapper(func, bitmask, undefined, args, argsHolders, undefined, undefined, nativeMax(arity - length, 0));
result.placeholder = placeholder;
return result;
}
var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
return apply(fn, this, args);
}
return wrapper;
}
/**
* Creates a `_.flow` or `_.flowRight` function.
*
@@ -3991,8 +4027,6 @@
Ctor = isBindKey ? undefined : createCtorWrapper(func);
function wrapper() {
// Avoid `arguments` object use disqualifying optimizations by
// converting it to an array before providing it to other functions.
var length = arguments.length,
index = length,
args = Array(length);
@@ -4012,25 +4046,7 @@
length -= argsHolders.length;
if (length < arity) {
var newArgPos = argPos ? copyArray(argPos) : undefined,
newArity = nativeMax(arity - length, 0),
newsHolders = isCurry ? argsHolders : undefined,
newHoldersRight = isCurry ? undefined : argsHolders,
newPartials = isCurry ? args : undefined,
newPartialsRight = isCurry ? undefined : args;
bitmask |= (isCurry ? PARTIAL_FLAG : PARTIAL_RIGHT_FLAG);
bitmask &= ~(isCurry ? PARTIAL_RIGHT_FLAG : PARTIAL_FLAG);
if (!isCurryBound) {
bitmask &= ~(BIND_FLAG | BIND_KEY_FLAG);
}
var newData = [func, bitmask, thisArg, newPartials, newsHolders, newPartialsRight, newHoldersRight, newArgPos, ary, newArity],
result = createHybridWrapper.apply(undefined, newData);
if (isLaziable(func)) {
setData(result, newData);
}
var result = createRecurryWrapper(func, bitmask, thisArg, args, argsHolders, argPos, ary, nativeMax(arity - length, 0));
result.placeholder = placeholder;
return result;
}
@@ -4054,6 +4070,30 @@
return wrapper;
}
function createRecurryWrapper(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {
var isCurry = bitmask & CURRY_FLAG,
isCurryBound = bitmask & CURRY_BOUND_FLAG,
newArgPos = argPos ? copyArray(argPos) : undefined,
newsHolders = isCurry ? holders : undefined,
newHoldersRight = isCurry ? undefined : holders,
newPartials = isCurry ? partials : undefined,
newPartialsRight = isCurry ? undefined : partials;
bitmask |= (isCurry ? PARTIAL_FLAG : PARTIAL_RIGHT_FLAG);
bitmask &= ~(isCurry ? PARTIAL_RIGHT_FLAG : PARTIAL_FLAG);
if (!isCurryBound) {
bitmask &= ~(BIND_FLAG | BIND_KEY_FLAG);
}
var newData = [func, bitmask, thisArg, newPartials, newsHolders, newPartialsRight, newHoldersRight, newArgPos, ary, arity],
result = createHybridWrapper.apply(undefined, newData);
if (isLaziable(func)) {
setData(result, newData);
}
return result;
}
/**
* Creates a function like `_.conj`.
*
@@ -4237,16 +4277,21 @@
if (data) {
mergeData(newData, data);
func = newData[0];
bitmask = newData[1];
thisArg = newData[2];
holders = newData[4];
arity = newData[9];
}
newData[9] = arity == null
arity = newData[9] = arity == null
? (isBindKey ? 0 : func.length)
: nativeMax(arity - length, 0);
if (bitmask == BIND_FLAG) {
var result = createBindWrapper(newData[0], newData[2]);
} else if ((bitmask == PARTIAL_FLAG || bitmask == (BIND_FLAG | PARTIAL_FLAG)) && !newData[4].length) {
var result = createBindWrapper(func, thisArg);
} else if (bitmask == CURRY_FLAG || bitmask == CURRY_RIGHT_FLAG) {
result = createCurryWrapper(func, bitmask, arity);
} else if ((bitmask == PARTIAL_FLAG || bitmask == (BIND_FLAG | PARTIAL_FLAG)) && !holders.length) {
result = createPartialWrapper.apply(undefined, newData);
} else {
result = createHybridWrapper.apply(undefined, newData);