You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
92 lines
3.2 KiB
92 lines
3.2 KiB
import composeArgs from './_composeArgs.js'; |
|
import composeArgsRight from './_composeArgsRight.js'; |
|
import countHolders from './_countHolders.js'; |
|
import createCtor from './_createCtor.js'; |
|
import createRecurry from './_createRecurry.js'; |
|
import getHolder from './_getHolder.js'; |
|
import reorder from './_reorder.js'; |
|
import replaceHolders from './_replaceHolders.js'; |
|
import root from './_root.js'; |
|
|
|
/** Used to compose bitmasks for function metadata. */ |
|
var WRAP_BIND_FLAG = 1, |
|
WRAP_BIND_KEY_FLAG = 2, |
|
WRAP_CURRY_FLAG = 8, |
|
WRAP_CURRY_RIGHT_FLAG = 16, |
|
WRAP_ARY_FLAG = 128, |
|
WRAP_FLIP_FLAG = 512; |
|
|
|
/** |
|
* Creates a function that wraps `func` to invoke it with optional `this` |
|
* binding of `thisArg`, partial application, and currying. |
|
* |
|
* @private |
|
* @param {Function|string} func The function or method name to wrap. |
|
* @param {number} bitmask The bitmask flags. See `createWrap` for more details. |
|
* @param {*} [thisArg] The `this` binding of `func`. |
|
* @param {Array} [partials] The arguments to prepend to those provided to |
|
* the new function. |
|
* @param {Array} [holders] The `partials` placeholder indexes. |
|
* @param {Array} [partialsRight] The arguments to append to those provided |
|
* to the new function. |
|
* @param {Array} [holdersRight] The `partialsRight` placeholder indexes. |
|
* @param {Array} [argPos] The argument positions of the new function. |
|
* @param {number} [ary] The arity cap of `func`. |
|
* @param {number} [arity] The arity of `func`. |
|
* @returns {Function} Returns the new wrapped function. |
|
*/ |
|
function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) { |
|
var isAry = bitmask & WRAP_ARY_FLAG, |
|
isBind = bitmask & WRAP_BIND_FLAG, |
|
isBindKey = bitmask & WRAP_BIND_KEY_FLAG, |
|
isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG), |
|
isFlip = bitmask & WRAP_FLIP_FLAG, |
|
Ctor = isBindKey ? undefined : createCtor(func); |
|
|
|
function wrapper() { |
|
var length = arguments.length, |
|
args = Array(length), |
|
index = length; |
|
|
|
while (index--) { |
|
args[index] = arguments[index]; |
|
} |
|
if (isCurried) { |
|
var placeholder = getHolder(wrapper), |
|
holdersCount = countHolders(args, placeholder); |
|
} |
|
if (partials) { |
|
args = composeArgs(args, partials, holders, isCurried); |
|
} |
|
if (partialsRight) { |
|
args = composeArgsRight(args, partialsRight, holdersRight, isCurried); |
|
} |
|
length -= holdersCount; |
|
if (isCurried && length < arity) { |
|
var newHolders = replaceHolders(args, placeholder); |
|
return createRecurry( |
|
func, bitmask, createHybrid, wrapper.placeholder, thisArg, |
|
args, newHolders, argPos, ary, arity - length |
|
); |
|
} |
|
var thisBinding = isBind ? thisArg : this, |
|
fn = isBindKey ? thisBinding[func] : func; |
|
|
|
length = args.length; |
|
if (argPos) { |
|
args = reorder(args, argPos); |
|
} else if (isFlip && length > 1) { |
|
args.reverse(); |
|
} |
|
if (isAry && ary < length) { |
|
args.length = ary; |
|
} |
|
if (this && this !== root && this instanceof wrapper) { |
|
fn = Ctor || createCtor(fn); |
|
} |
|
return fn.apply(thisBinding, args); |
|
} |
|
return wrapper; |
|
} |
|
|
|
export default createHybrid;
|
|
|