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							56 lines
						
					
					
						
							2.1 KiB
						
					
					
				| import isLaziable from './_isLaziable.js'; | |
| import setData from './_setData.js'; | |
| import setWrapToString from './_setWrapToString.js'; | |
| 
 | |
| /** Used to compose bitmasks for function metadata. */ | |
| var WRAP_BIND_FLAG = 1, | |
|     WRAP_BIND_KEY_FLAG = 2, | |
|     WRAP_CURRY_BOUND_FLAG = 4, | |
|     WRAP_CURRY_FLAG = 8, | |
|     WRAP_PARTIAL_FLAG = 32, | |
|     WRAP_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 & WRAP_CURRY_FLAG, | |
|       newHolders = isCurry ? holders : undefined, | |
|       newHoldersRight = isCurry ? undefined : holders, | |
|       newPartials = isCurry ? partials : undefined, | |
|       newPartialsRight = isCurry ? undefined : partials; | |
| 
 | |
|   bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG); | |
|   bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG); | |
| 
 | |
|   if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) { | |
|     bitmask &= ~(WRAP_BIND_FLAG | WRAP_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); | |
| } | |
| 
 | |
| export default createRecurry;
 | |
| 
 |