File: nullable-weak-property.m

package info (click to toggle)
llvm-toolchain-7 1%3A7.0.1-8~deb9u3
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 733,456 kB
  • sloc: cpp: 3,776,651; ansic: 633,271; asm: 350,301; python: 142,716; objc: 107,612; sh: 22,626; lisp: 11,056; perl: 7,999; pascal: 6,742; ml: 5,537; awk: 3,536; makefile: 2,557; cs: 2,027; xml: 841; ruby: 156
file content (26 lines) | stat: -rw-r--r-- 658 bytes parent folder | download | duplicates (25)
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
// RUN: %clang_cc1 -fobjc-arc -fobjc-runtime-has-weak -Wnullable-to-nonnull-conversion %s -verify


// rdar://19985330
@interface NSObject @end

@class NSFoo;
void foo (NSFoo * _Nonnull);

@interface NSBar : NSObject
@property(weak) NSFoo *property1;
@end

#pragma clang assume_nonnull begin
@interface NSBar ()
@property(weak) NSFoo *property2;
@end

#pragma clang assume_nonnull end

@implementation NSBar 
- (void) Meth {
   foo (self.property1); // no warning because nothing is inferred
   foo (self.property2); // expected-warning {{implicit conversion from nullable pointer 'NSFoo * _Nullable' to non-nullable pointer type 'NSFoo * _Nonnull'}}
}
@end