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
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
// RUN: %target-swift-emit-silgen %s | %FileCheck %s
struct Subscript1 {
subscript(_: Int = 0) -> Int {
get {}
set {}
}
}
// CHECK-LABEL: sil hidden [ossa] @$s27subscript_default_arguments10Subscript1VyS2icipfA_ : $@convention(thin) () -> Int {
struct Subscript2 {
subscript(_ x: Int = 0) -> Int {
get {}
set {}
}
}
// CHECK-LABEL: sil hidden [ossa] @$s27subscript_default_arguments10Subscript2VyS2icipfA_ : $@convention(thin) () -> Int {
struct Subscript3 {
subscript(x x: Int = 0) -> Int {
get {}
set {}
}
}
// CHECK-LABEL: sil hidden [ossa] @$s27subscript_default_arguments10Subscript3V1xS2i_tcipfA_ : $@convention(thin) () -> Int {
struct Subscript4 {
subscript(_ x: Int, y y: Int = 0) -> Int {
get {}
set {}
}
}
// CHECK-LABEL: sil hidden [ossa] @$s27subscript_default_arguments10Subscript4V_1yS2i_SitcipfA0_ : $@convention(thin) () -> Int {
struct Subscript5 {
subscript(x x: Int, y y: Int = 0) -> Int {
get {}
set {}
}
}
// CHECK-LABEL: sil hidden [ossa] @$s27subscript_default_arguments10Subscript5V1x1yS2i_SitcipfA0_ : $@convention(thin) () -> Int {
func defaultArg<T>() -> T? { return nil }
struct Subscript6<T> {
subscript(x x: Int = 0, y y: T? = defaultArg()) -> Int {
get {}
set {}
}
}
// CHECK-LABEL: sil hidden [ossa] @$s27subscript_default_arguments10Subscript6V1x1yS2i_xSgtcipfA_ : $@convention(thin) <T> () -> Int {
// CHECK-LABEL: sil hidden [ossa] @$s27subscript_default_arguments10Subscript6V1x1yS2i_xSgtcipfA0_ : $@convention(thin) <T> () -> @out Optional<T> {
struct Subscript7<T> {
subscript<U>(x x: T? = defaultArg(), y y: U) -> Int {
get {}
set {}
}
}
// CHECK-LABEL: sil hidden [ossa] @$s27subscript_default_arguments10Subscript7V1x1ySixSg_qd__tcluipfA_ : $@convention(thin) <T><U> () -> @out Optional<T> {
struct Subscript8 {
subscript(file: String = #file, line: Int = #line, function: String = #function) -> Int {
get {}
set {}
}
}
public protocol P {
associatedtype T
static func f() -> T
}
// Doesn't work yet
#if false
// FIXME-LABEL: sil hidden [ossa] @$s27subscript_default_arguments1PPAAEySi1TQzcipfA_ : $@convention(thin) <Self where Self : P> () -> @out Self.T {
extension P {
subscript(t: T = f()) -> Int {
get {}
set {}
}
}
struct Subscript9<T> : P {
static func f() -> T {}
}
#endif
// CHECK-LABEL: sil [ossa] @$s27subscript_default_arguments10subscript1yyF : $@convention(thin) () -> () {
public func subscript1() {
var s = Subscript1()
_ = s[]
s[] = 0
s[] += 1
}
public func subscript2() {
var s = Subscript2()
_ = s[]
s[] = 0
s[] += 1
}
public func subscript3() {
var s = Subscript3()
_ = s[]
s[] = 0
s[] += 1
}
public func subscript4() {
var s = Subscript4()
_ = s[0]
s[0] = 0
s[0] += 1
}
public func subscript5() {
var s = Subscript5()
_ = s[x: 0]
s[x: 0] = 0
s[x: 0] += 1
}
public func subscript6() {
var s = Subscript6<String>()
_ = s[]
s[] = 0
s[] += 1
}
public func subscript7() {
var s = Subscript7<String>()
_ = s[y: 123]
s[y: 123] = 0
s[y: 123] += 1
}
public func subscript8() {
var s = Subscript8()
_ = s[]
s[] = 0
s[] += 1
}
#if false
public func subscript9() {
var s = Subscript9<Int>()
_ = s[]
s[] = 0
s[] += 1
}
#endif
|
