1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
// ES2017 draft rev 0e10c9f29fca1385980c08a7d5e7bb3eb775e2e4
// 23.2.1.1 Set, steps 6-8
function SetConstructorInit(iterable) {
var set = this;
// Step 6.a.
var adder = set.add;
// Step 6.b.
if (!IsCallable(adder))
ThrowTypeError(JSMSG_NOT_FUNCTION, typeof adder);
// Steps 6.c-8.
for (var nextValue of allowContentIter(iterable))
callContentFunction(adder, set, nextValue);
}
// ES2018 draft rev f83aa38282c2a60c6916ebc410bfdf105a0f6a54
// 23.2.3.6 Set.prototype.forEach ( callbackfn [ , thisArg ] )
function SetForEach(callbackfn, thisArg = undefined) {
// Step 1.
var S = this;
// Steps 2-3.
if (!IsObject(S) || (S = GuardToSetObject(S)) === null)
return callFunction(CallSetMethodIfWrapped, this, callbackfn, thisArg, "SetForEach");
// Step 4.
if (!IsCallable(callbackfn))
ThrowTypeError(JSMSG_NOT_FUNCTION, DecompileArg(0, callbackfn));
// Steps 5-8.
var values = callFunction(std_Set_values, S);
// Inlined: SetIteratorNext
var setIterationResult = setIteratorTemp.setIterationResult;
if (!setIterationResult)
setIterationResult = setIteratorTemp.setIterationResult = _CreateSetIterationResult();
while (true) {
var done = _GetNextSetEntryForIterator(values, setIterationResult);
if (done)
break;
var value = setIterationResult[0];
setIterationResult[0] = null;
callContentFunction(callbackfn, thisArg, value, value, S);
}
}
// ES6 final draft 23.2.2.2.
// Uncloned functions with `$` prefix are allocated as extended function
// to store the original name in `_SetCanonicalName`.
function $SetSpecies() {
// Step 1.
return this;
}
_SetCanonicalName($SetSpecies, "get [Symbol.species]");
var setIteratorTemp = { setIterationResult: null };
function SetIteratorNext() {
// Step 1.
var O = this;
// Steps 2-3.
if (!IsObject(O) || (O = GuardToSetIterator(O)) === null)
return callFunction(CallSetIteratorMethodIfWrapped, this, "SetIteratorNext");
// Steps 4-5 (implemented in _GetNextSetEntryForIterator).
// Steps 8-9 (omitted).
var setIterationResult = setIteratorTemp.setIterationResult;
if (!setIterationResult)
setIterationResult = setIteratorTemp.setIterationResult = _CreateSetIterationResult();
var retVal = {value: undefined, done: true};
// Steps 10.a, 11.
var done = _GetNextSetEntryForIterator(O, setIterationResult);
if (!done) {
// Steps 10.b-c (omitted).
// Step 6.
var itemKind = UnsafeGetInt32FromReservedSlot(O, ITERATOR_SLOT_ITEM_KIND);
var result;
if (itemKind === ITEM_KIND_VALUE) {
// Step 10.d.i.
result = setIterationResult[0];
} else {
// Step 10.d.ii.
assert(itemKind === ITEM_KIND_KEY_AND_VALUE, itemKind);
result = [setIterationResult[0], setIterationResult[0]];
}
setIterationResult[0] = null;
retVal.value = result;
retVal.done = false;
}
// Steps 7, 10.d, 12.
return retVal;
}
|
