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
|
// Playgrounds
// RUN: %target-typecheck-verify-swift -playground
// Immediate mode
// RUN: %target-typecheck-verify-swift -interpret
// REQUIRES: OS=macosx
// REQUIRES: swift_interpreter
@available(OSX, introduced: 10.7, deprecated: 10.8)
func deprecatedOn10_8() { }
func someFunction() {
// We would normally emit a warning indicating this check is useless (because
// the minimum deployment target is 10.9) -- but do not when compiling for
// playgrounds because the developer cannot set the minimum deployment target
// herself. We also suppress this warning when compiling in immediate mode.
if #available(OSX 10.8, *) {
} else {
// This branch is dead with our minimum deployment target, so don't emit
// deprecation and unavailability diagnostics in it.
deprecatedOn10_8() // no-warning
availableOn50() // no-warning
}
if #available(OSX 50, *) { // expected-note {{enclosing scope here}}
// Still warn if the check is useless because an enclosing #available rules
// it out.
if #available(OSX 50, *) { // expected-warning {{unnecessary check for 'macOS'; enclosing scope ensures guard will always be true}}
}
}
}
@available(OSX 50, *)
func availableOn50() { // expected-note {{enclosing scope here}}
// Still warn if the check is useless because an enclosing @available rules
// it out.
if #available(OSX 50, *) { // expected-warning {{unnecessary check for 'macOS'; enclosing scope ensures guard will always be true}}
}
}
// Make sure we don't warn at the top level
if #available(OSX 10.8, *) {
}
|
