1
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var isLaziable = require('./_isLaziable'),
|
2
|
setData = require('./_setData'),
|
3
|
setWrapToString = require('./_setWrapToString');
|
4
|
|
5
|
/** Used to compose bitmasks for function metadata. */
|
6
|
var WRAP_BIND_FLAG = 1,
|
7
|
WRAP_BIND_KEY_FLAG = 2,
|
8
|
WRAP_CURRY_BOUND_FLAG = 4,
|
9
|
WRAP_CURRY_FLAG = 8,
|
10
|
WRAP_PARTIAL_FLAG = 32,
|
11
|
WRAP_PARTIAL_RIGHT_FLAG = 64;
|
12
|
|
13
|
/**
|
14
|
* Creates a function that wraps `func` to continue currying.
|
15
|
*
|
16
|
* @private
|
17
|
* @param {Function} func The function to wrap.
|
18
|
* @param {number} bitmask The bitmask flags. See `createWrap` for more details.
|
19
|
* @param {Function} wrapFunc The function to create the `func` wrapper.
|
20
|
* @param {*} placeholder The placeholder value.
|
21
|
* @param {*} [thisArg] The `this` binding of `func`.
|
22
|
* @param {Array} [partials] The arguments to prepend to those provided to
|
23
|
* the new function.
|
24
|
* @param {Array} [holders] The `partials` placeholder indexes.
|
25
|
* @param {Array} [argPos] The argument positions of the new function.
|
26
|
* @param {number} [ary] The arity cap of `func`.
|
27
|
* @param {number} [arity] The arity of `func`.
|
28
|
* @returns {Function} Returns the new wrapped function.
|
29
|
*/
|
30
|
function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) {
|
31
|
var isCurry = bitmask & WRAP_CURRY_FLAG,
|
32
|
newHolders = isCurry ? holders : undefined,
|
33
|
newHoldersRight = isCurry ? undefined : holders,
|
34
|
newPartials = isCurry ? partials : undefined,
|
35
|
newPartialsRight = isCurry ? undefined : partials;
|
36
|
|
37
|
bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG);
|
38
|
bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG);
|
39
|
|
40
|
if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) {
|
41
|
bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG);
|
42
|
}
|
43
|
var newData = [
|
44
|
func, bitmask, thisArg, newPartials, newHolders, newPartialsRight,
|
45
|
newHoldersRight, argPos, ary, arity
|
46
|
];
|
47
|
|
48
|
var result = wrapFunc.apply(undefined, newData);
|
49
|
if (isLaziable(func)) {
|
50
|
setData(result, newData);
|
51
|
}
|
52
|
result.placeholder = placeholder;
|
53
|
return setWrapToString(result, func, bitmask);
|
54
|
}
|
55
|
|
56
|
module.exports = createRecurry;
|