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
|
// RUN: %target-typecheck-verify-swift -D FOO -D BAZ -swift-version 4
#if FOO == BAZ // expected-error{{expected '&&' or '||' expression}}
var x = 0
#endif
#if ^FOO // expected-error {{expected unary '!' expression}}
var y = 0
#endif
#if foo(BAR) // expected-error {{invalid conditional compilation expression}}
var z = 0
#endif
#if FOO || !FOO
func f() {}
#endif ; f() // expected-error {{extra tokens following conditional compilation directive}}
#if FOO || !FOO
func g() {}
#else g() // expected-error {{extra tokens following conditional compilation directive}}
#endif
#if FOO || !FOO
func h() {}
#else /* aaa */
#endif /* bbb */
#if foo.bar() // expected-error {{invalid conditional compilation expression}}
.baz()
#endif
// <https://twitter.com/practicalswift/status/829066902869786625>
#if // expected-error {{incomplete condition in conditional compilation directive}}
#if 0 == // expected-error {{incomplete condition in conditional compilation directive}}
#if 0= // expected-error {{incomplete condition in conditional compilation directive}} expected-error {{'=' must have consistent whitespace on both sides}}
class Foo {
#if // expected-error {{incomplete condition in conditional compilation directive}}
#if 0 == // expected-error {{incomplete condition in conditional compilation directive}}
#if 0= // expected-error {{incomplete condition in conditional compilation directive}} expected-error {{'=' must have consistent whitespace on both sides}}
}
struct S {
#if FOO
#else
#else // expected-error {{further conditions after #else are unreachable}}
#endif
#if FOO
#elseif BAR
#elseif BAZ
#else
#endif
}
#if FOO
#else
#else // expected-error {{further conditions after #else are unreachable}}
#endif
#if FOO
#elseif BAR
#elseif BAZ
#else
#endif
#if os(ios)
#endif
#if os(uOS)
#endif
#if os(xxxxxxd)
#endif
#if os(bisionos)
#endif
#if arch(arn)
#endif
#if _endian(mid) // expected-warning {{unknown endianness for build configuration '_endian'}}
#endif
LABEL: #if true // expected-error {{expected statement}}
func fn_i() {}
#endif
fn_i() // OK
try #if false // expected-error {{expected expression}}
#else
func fn_j() {}
#endif
fn_j() // OK
#if foo || bar || nonExistent() // expected-error {{invalid conditional compilation expression}}
#endif
#if FOO = false
// expected-error @-1 {{invalid conditional compilation expression}}
undefinedFunc() // ignored.
#else
undefinedFunc() // expected-error {{cannot find 'undefinedFunc' in scope}}
#endif
#if false
#elseif FOO ? true : false
// expected-error @-1 {{invalid conditional compilation expression}}
undefinedFunc() // ignored.
#else
undefinedFunc() // expected-error {{cannot find 'undefinedFunc' in scope}}
#endif
/// Invalid platform condition arguments don't invalidate the whole condition.
// expected-warning@+1{{unknown endianness}}
#if !arch(arn) && !os(ystem) && !_endian(ness)
func fn_k() {}
#endif
fn_k()
#if os(cillator) || arch(i3rm)
func undefinedFunc() // ignored.
#endif
undefinedFunc() // expected-error {{cannot find 'undefinedFunc' in scope}}
#if os(simulator)
#endif
#if arch(iOS)
#endif
#if _endian(arm64) // expected-warning {{unknown endianness for build configuration '_endian'}}
#endif
#if targetEnvironment(_ObjC)
#endif
#if os(iOS) || os(simulator)
#endif
#if arch(ios)
#endif
#if FOO
#else if BAR
// expected-error@-1 {{unexpected 'if' keyword following '#else' conditional compilation directive; did you mean '#elseif'?}} {{1-9=#elseif}}
#else
#endif
#if FOO
#else
if true {}
#endif // OK
// rdar://83017601 Make sure we don't crash
#if canImport()
// expected-error@-1 {{'canImport' requires a module name}}
#endif
|
