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
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
// RUN: %target-typecheck-verify-swift -D CONDITION_1
postfix operator ++
postfix func ++ (_: Int) -> Int { 0 }
struct OneResult {}
struct TwoResult {}
protocol MyProto {
func optionalMethod() -> [Int]?
}
struct MyStruct {
var optionalMember: MyProto? { nil }
func methodOne() -> OneResult { OneResult() }
func methodTwo() -> TwoResult { TwoResult() }
}
func globalFunc<T>(_ arg: T) -> T { arg }
func testBasic(baseExpr: MyStruct) {
baseExpr
#if CONDITION_1
.methodOne() // expected-warning {{result of call to 'methodOne()' is unused}}
#else
.methodTwo()
#endif
}
MyStruct()
#if CONDITION_1
.methodOne() // expected-warning {{result of call to 'methodOne()' is unused}}
#else
.methodTwo()
#endif
func testInvalidContent(baseExpr: MyStruct, otherExpr: Int) {
baseExpr // expected-warning {{expression of type 'MyStruct' is unused}}
#if CONDITION_1
{ $0 + 1 } // expected-error {{closure expression is unused}}
#endif
baseExpr // expected-warning {{expression of type 'MyStruct' is unused}}
#if CONDITION_1
+ otherExpr // expected-error {{unary operator cannot be separated from its operand}}
// expected-warning@-1 {{result of operator '+' is unused}}
#endif
baseExpr
#if CONDITION_1
.methodOne() // expected-warning {{result of call to 'methodOne()' is unused}}
print("debug") // expected-error {{unexpected tokens in '#if' expression body}}
#endif
}
func testExprKind(baseExpr: MyStruct, idx: Int) {
baseExpr
#if CONDITION_1
.optionalMember?.optionalMethod()![idx]++ // expected-warning {{result of operator '++' is unused}}
#else
.otherMethod(arg) {
//...
}
#endif
baseExpr
#if CONDITION_1
.methodOne() + 12 // expected-error {{unexpected tokens in '#if' expression body}}
// expected-warning@-1 {{result of call to 'methodOne()' is unused}}
#endif
}
func emptyElse(baseExpr: MyStruct) {
baseExpr
#if CONDITION_1
.methodOne() // expected-warning {{result of call to 'methodOne()' is unused}}
#elseif CONDITION_2
// OK. Do nothing.
#endif
baseExpr
#if CONDITION_1
.methodOne() // expected-warning {{result of call to 'methodOne()' is unused}}
#elseif CONDITION_2
return // expected-error {{unexpected tokens in '#if' expression body}}
#endif
}
func consecutiveIfConfig(baseExpr: MyStruct) {
baseExpr
#if CONDITION_1
.methodOne()
#endif
#if CONDITION_2
.methodTwo()
#endif
.unknownMethod() // expected-error {{value of type 'OneResult' has no member 'unknownMethod'}}
}
func nestedIfConfig(baseExpr: MyStruct) {
baseExpr
#if CONDITION_1
#if CONDITION_2
.methodOne()
#endif
#if CONDITION_1
.methodTwo() // expected-warning {{result of call to 'methodTwo()' is unused}}
#endif
#else
.unknownMethod1()
#if CONDITION_2
.unknownMethod2()
#endif
#endif
}
func ifconfigExprInExpr(baseExpr: MyStruct) {
globalFunc( // expected-warning {{result of call to 'globalFunc' is unused}}
baseExpr
#if CONDITION_1
.methodOne()
#else
.methodTwo()
#endif
)
}
func canImportVersioned() {
#if canImport(A, _version: 2)
let a = 1
#endif
#if canImport(A, _version: 2.2)
let a = 1
#endif
#if canImport(A, _version: 2.2.2)
let a = 1
#endif
#if canImport(A, _version: 2.2.2.2)
let a = 1
#endif
#if canImport(A, _version: 2.2.2.2.2) // expected-warning {{trailing components of version '2.2.2.2' are ignored}}
let a = 1
#endif
#if canImport(A, _underlyingVersion: 4)
let a = 1
#endif
#if canImport(A, _underlyingVersion: 2.200)
let a = 1
#endif
#if canImport(A, _underlyingVersion: 2.200.1)
let a = 1
#endif
#if canImport(A, _underlyingVersion: 2.200.1.3)
let a = 1
#endif
#if canImport(A, unknown: 2.2) // expected-error {{2nd parameter of canImport should be labeled as _version or _underlyingVersion}}
let a = 1
#endif
#if canImport(A,) // expected-error {{unexpected ',' separator}}
let a = 1
#endif
#if canImport(A, 2.2) // expected-error {{2nd parameter of canImport should be labeled as _version or _underlyingVersion}}
let a = 1
#endif
#if canImport(A, 2.2, 1.1) // expected-error {{canImport can take only two parameters}}
let a = 1
#endif
#if canImport(A, _version:) // expected-error {{expected expression in list of expressions}}
let a = 1
#endif
#if canImport(A, _version: "") // expected-error {{_version argument cannot be empty}}
let a = 1
#endif
#if canImport(A, _version: >=2.2) // expected-error {{cannot parse module version '>=2.2'}}
let a = 1
#endif
#if canImport(A, _version: 20A301) // expected-error {{'A' is not a valid digit in integer literal}}
let a = 1
#endif
#if canImport(A, _version: "20A301") // expected-error {{cannot parse module version '20A301'}}
let a = 1
#endif
}
|
