File: receiver-forward-class.m

package info (click to toggle)
swiftlang 6.1.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,604 kB
  • sloc: cpp: 9,901,740; ansic: 2,201,431; asm: 1,091,827; python: 308,252; objc: 82,166; f90: 80,126; lisp: 38,358; pascal: 25,559; sh: 20,429; ml: 5,058; perl: 4,745; makefile: 4,484; awk: 3,535; javascript: 3,018; xml: 918; fortran: 664; cs: 573; ruby: 396
file content (18 lines) | stat: -rw-r--r-- 665 bytes parent folder | download | duplicates (11) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
 
// RUN: %clang_cc1 -fsyntax-only -Wreceiver-forward-class -verify %s
// RUN: %clang_cc1 -x objective-c++ -fsyntax-only  -Wreceiver-forward-class -verify %s

@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}}
}