1// RUN: %clang_cc1  -fsyntax-only -Wsuper-class-method-mismatch -verify %s
2
3@interface Root
4-(void) method_r: (char)ch : (float*)f1 : (int*) x; // expected-note {{previous declaration is here}}
5@end
6
7@class Sub;
8
9@interface Base : Root
10-(void) method: (int*) x; // expected-note {{previous declaration is here}}
11-(void) method1: (Base*) x; // expected-note {{previous declaration is here}}
12-(void) method2: (Sub*) x; // expected-note{{passing argument to parameter 'x' here}}
13+ method3: (int)x1 : (Base *)x2 : (float)x3; // expected-note {{previous declaration is here}}
14+ mathod4: (id)x1;
15- method5: (int) x : (double) d; // expected-note {{previous declaration is here}}
16- method6: (int) x : (float) d; // expected-note {{previous declaration is here}}
17@end
18
19struct A {
20  int x,y,z;
21};
22
23@interface Sub : Base
24-(void) method: (struct A*) a;	// expected-warning {{method parameter type 'struct A *' does not match super class method parameter type 'int *'}}
25-(void) method1: (Sub*) x;	// expected-warning {{method parameter type 'Sub *' does not match super class method parameter type 'Base *'}}
26-(void) method2: (Base*) x;	// no need to warn. At call point we warn if need be.
27+ method3: (int)x1 : (Sub *)x2 : (float)x3;	// expected-warning {{method parameter type 'Sub *' does not match super class method parameter type 'Base *'}}
28+ mathod4: (Base*)x1;
29-(void) method_r: (char)ch : (float*)f1 : (Sub*) x; // expected-warning {{method parameter type 'Sub *' does not match super class method parameter type 'int *'}}
30- method5: (int) x : (float) d; // expected-warning {{method parameter type 'float' does not match super class method parameter type 'double'}}
31- method6: (int) x : (double) d; // expected-warning {{method parameter type 'double' does not match super class method parameter type 'float'}}
32@end
33
34void f(Base *base, Sub *sub) {
35  int x;
36  [base method:&x];  // warn. if base is actually 'Sub' it will use -[Sub method] with wrong arguments
37
38  Base *b;
39  [base method1:b]; // if base is actuall 'Sub'  it will use [Sub method1] with wrong argument.
40
41  [base method2:b];  // expected-warning {{}}
42
43  Sub *s;
44  [base method2:s]; // if base is actually 'Sub' OK. Either way OK.
45
46}
47
48
49
50
51