dotfiles/.vscode/extensions/vscodevim.vim-0.2.0/node_modules/lodash/_createRecurry.js
Cyryl Płotnicki 280bcab25f VSCode update
2016-09-24 13:12:34 +02:00

56 lines
2 KiB
JavaScript

var isLaziable = require('./_isLaziable'),
setData = require('./_setData'),
setWrapToString = require('./_setWrapToString');
/** Used to compose bitmasks for function metadata. */
var BIND_FLAG = 1,
BIND_KEY_FLAG = 2,
CURRY_BOUND_FLAG = 4,
CURRY_FLAG = 8,
PARTIAL_FLAG = 32,
PARTIAL_RIGHT_FLAG = 64;
/**
* Creates a function that wraps `func` to continue currying.
*
* @private
* @param {Function} func The function to wrap.
* @param {number} bitmask The bitmask flags. See `createWrap` for more details.
* @param {Function} wrapFunc The function to create the `func` wrapper.
* @param {*} placeholder The placeholder value.
* @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} [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 createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) {
var isCurry = bitmask & CURRY_FLAG,
newHolders = 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 (!(bitmask & CURRY_BOUND_FLAG)) {
bitmask &= ~(BIND_FLAG | BIND_KEY_FLAG);
}
var newData = [
func, bitmask, thisArg, newPartials, newHolders, newPartialsRight,
newHoldersRight, argPos, ary, arity
];
var result = wrapFunc.apply(undefined, newData);
if (isLaziable(func)) {
setData(result, newData);
}
result.placeholder = placeholder;
return setWrapToString(result, func, bitmask);
}
module.exports = createRecurry;