File: receiver-forward-class.m

package info (click to toggle)
llvm-toolchain-4.0 1%3A4.0.1-10~deb9u2
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 493,332 kB
  • sloc: cpp: 2,698,100; ansic: 552,773; asm: 128,821; python: 121,589; objc: 105,054; sh: 21,174; lisp: 6,758; ml: 5,532; perl: 5,311; pascal: 5,245; makefile: 2,083; cs: 1,868; xml: 686; php: 212; csh: 117
file content (19 lines) | stat: -rw-r--r-- 684 bytes parent folder | download | duplicates (29)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
// RUN: %clang_cc1 -fsyntax-only -Wreceiver-forward-class -verify %s
// RUN: %clang_cc1 -x objective-c++ -fsyntax-only  -Wreceiver-forward-class -verify %s
// rdar://10686120

@class A; // expected-note {{forward declaration of class here}}

@interface B
-(int) width; // expected-note {{using}}
@end
@interface C
-(float) width; // expected-note {{also found}}
@end

int f0(A *x) {
  return [x width]; // expected-warning {{receiver type 'A' for instance message is a forward declaration}} \
                    // expected-warning {{multiple methods named 'width' found}} \
                    // expected-note {{receiver is treated with 'id' type for purpose of method lookup}}
}