source: trip-planner-front/node_modules/lodash/_createHybrid.js@ 6a3a178

Last change on this file since 6a3a178 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

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1var composeArgs = require('./_composeArgs'),
2 composeArgsRight = require('./_composeArgsRight'),
3 countHolders = require('./_countHolders'),
4 createCtor = require('./_createCtor'),
5 createRecurry = require('./_createRecurry'),
6 getHolder = require('./_getHolder'),
7 reorder = require('./_reorder'),
8 replaceHolders = require('./_replaceHolders'),
9 root = require('./_root');
10
11/** Used to compose bitmasks for function metadata. */
12var WRAP_BIND_FLAG = 1,
13 WRAP_BIND_KEY_FLAG = 2,
14 WRAP_CURRY_FLAG = 8,
15 WRAP_CURRY_RIGHT_FLAG = 16,
16 WRAP_ARY_FLAG = 128,
17 WRAP_FLIP_FLAG = 512;
18
19/**
20 * Creates a function that wraps `func` to invoke it with optional `this`
21 * binding of `thisArg`, partial application, and currying.
22 *
23 * @private
24 * @param {Function|string} func The function or method name to wrap.
25 * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
26 * @param {*} [thisArg] The `this` binding of `func`.
27 * @param {Array} [partials] The arguments to prepend to those provided to
28 * the new function.
29 * @param {Array} [holders] The `partials` placeholder indexes.
30 * @param {Array} [partialsRight] The arguments to append to those provided
31 * to the new function.
32 * @param {Array} [holdersRight] The `partialsRight` placeholder indexes.
33 * @param {Array} [argPos] The argument positions of the new function.
34 * @param {number} [ary] The arity cap of `func`.
35 * @param {number} [arity] The arity of `func`.
36 * @returns {Function} Returns the new wrapped function.
37 */
38function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) {
39 var isAry = bitmask & WRAP_ARY_FLAG,
40 isBind = bitmask & WRAP_BIND_FLAG,
41 isBindKey = bitmask & WRAP_BIND_KEY_FLAG,
42 isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG),
43 isFlip = bitmask & WRAP_FLIP_FLAG,
44 Ctor = isBindKey ? undefined : createCtor(func);
45
46 function wrapper() {
47 var length = arguments.length,
48 args = Array(length),
49 index = length;
50
51 while (index--) {
52 args[index] = arguments[index];
53 }
54 if (isCurried) {
55 var placeholder = getHolder(wrapper),
56 holdersCount = countHolders(args, placeholder);
57 }
58 if (partials) {
59 args = composeArgs(args, partials, holders, isCurried);
60 }
61 if (partialsRight) {
62 args = composeArgsRight(args, partialsRight, holdersRight, isCurried);
63 }
64 length -= holdersCount;
65 if (isCurried && length < arity) {
66 var newHolders = replaceHolders(args, placeholder);
67 return createRecurry(
68 func, bitmask, createHybrid, wrapper.placeholder, thisArg,
69 args, newHolders, argPos, ary, arity - length
70 );
71 }
72 var thisBinding = isBind ? thisArg : this,
73 fn = isBindKey ? thisBinding[func] : func;
74
75 length = args.length;
76 if (argPos) {
77 args = reorder(args, argPos);
78 } else if (isFlip && length > 1) {
79 args.reverse();
80 }
81 if (isAry && ary < length) {
82 args.length = ary;
83 }
84 if (this && this !== root && this instanceof wrapper) {
85 fn = Ctor || createCtor(fn);
86 }
87 return fn.apply(thisBinding, args);
88 }
89 return wrapper;
90}
91
92module.exports = createHybrid;
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