1
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var apply = require('./_apply'),
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2
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createCtor = require('./_createCtor'),
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3
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createHybrid = require('./_createHybrid'),
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4
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createRecurry = require('./_createRecurry'),
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5
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getHolder = require('./_getHolder'),
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6
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replaceHolders = require('./_replaceHolders'),
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7
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root = require('./_root');
|
8
|
|
9
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/**
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10
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* Creates a function that wraps `func` to enable currying.
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11
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*
|
12
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* @private
|
13
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* @param {Function} func The function to wrap.
|
14
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* @param {number} bitmask The bitmask flags. See `createWrap` for more details.
|
15
|
* @param {number} arity The arity of `func`.
|
16
|
* @returns {Function} Returns the new wrapped function.
|
17
|
*/
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18
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function createCurry(func, bitmask, arity) {
|
19
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var Ctor = createCtor(func);
|
20
|
|
21
|
function wrapper() {
|
22
|
var length = arguments.length,
|
23
|
args = Array(length),
|
24
|
index = length,
|
25
|
placeholder = getHolder(wrapper);
|
26
|
|
27
|
while (index--) {
|
28
|
args[index] = arguments[index];
|
29
|
}
|
30
|
var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder)
|
31
|
? []
|
32
|
: replaceHolders(args, placeholder);
|
33
|
|
34
|
length -= holders.length;
|
35
|
if (length < arity) {
|
36
|
return createRecurry(
|
37
|
func, bitmask, createHybrid, wrapper.placeholder, undefined,
|
38
|
args, holders, undefined, undefined, arity - length);
|
39
|
}
|
40
|
var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
|
41
|
return apply(fn, this, args);
|
42
|
}
|
43
|
return wrapper;
|
44
|
}
|
45
|
|
46
|
module.exports = createCurry;
|