artdaq_node_server  v1_00_07
 All Classes Namespaces Files Variables Pages
_createHybrid.js
1 var 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 
12 var 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 
38 function 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 
92 module.exports = createHybrid;