81 lines
1.8 KiB
Mathematica
81 lines
1.8 KiB
Mathematica
|
// RUN: %clang_cc1 -fsyntax-only -verify %s
|
||
|
|
// <rdar://problem/6212771>
|
||
|
|
|
||
|
|
#define nil ((void*) 0)
|
||
|
|
|
||
|
|
@interface A
|
||
|
|
@property int x;
|
||
|
|
@end
|
||
|
|
|
||
|
|
@interface B : A
|
||
|
|
@end
|
||
|
|
|
||
|
|
// Basic checks...
|
||
|
|
id f0(int cond, id a, void *b) {
|
||
|
|
return cond ? a : b;
|
||
|
|
}
|
||
|
|
A *f0_a(int cond, A *a, void *b) {
|
||
|
|
return cond ? a : b;
|
||
|
|
}
|
||
|
|
|
||
|
|
id f1(int cond, id a) {
|
||
|
|
return cond ? a : nil;
|
||
|
|
}
|
||
|
|
A *f1_a(int cond, A *a) {
|
||
|
|
return cond ? a : nil;
|
||
|
|
}
|
||
|
|
|
||
|
|
void *f1_const_a(int x, void *p, const A * q) {
|
||
|
|
void *r = x ? p : q; // expected-warning{{initializing 'void *' with an expression of type 'const void *' discards qualifiers}}
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Check interaction with qualified id
|
||
|
|
|
||
|
|
@protocol P0 @end
|
||
|
|
|
||
|
|
id f2(int cond, id<P0> a, void *b) {
|
||
|
|
return cond ? a : b;
|
||
|
|
}
|
||
|
|
|
||
|
|
id f3(int cond, id<P0> a) {
|
||
|
|
return cond ? a : nil;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Check that result actually has correct type.
|
||
|
|
|
||
|
|
// Using properties is one way to find the compiler internal type of a
|
||
|
|
// conditional expression. Simple assignment doesn't work because if
|
||
|
|
// the type is id then it can be implicitly promoted.
|
||
|
|
@protocol P1
|
||
|
|
@property int x;
|
||
|
|
@end
|
||
|
|
|
||
|
|
int f5(int cond, id<P1> a, id<P1> b) {
|
||
|
|
return (cond ? a : b).x;
|
||
|
|
}
|
||
|
|
int f5_a(int cond, A *a, A *b) {
|
||
|
|
return (cond ? a : b).x;
|
||
|
|
}
|
||
|
|
int f5_b(int cond, A *a, B *b) {
|
||
|
|
return (cond ? a : b).x;
|
||
|
|
}
|
||
|
|
|
||
|
|
int f6(int cond, id<P1> a, void *b) {
|
||
|
|
// This should result in something with id type, currently.
|
||
|
|
return (cond ? a : b).x; // expected-error {{member reference base type 'void *' is not a structure or union}}
|
||
|
|
}
|
||
|
|
|
||
|
|
int f7(int cond, id<P1> a) {
|
||
|
|
return (cond ? a : nil).x;
|
||
|
|
}
|
||
|
|
|
||
|
|
int f8(int cond, id<P1> a, A *b) {
|
||
|
|
return a == b; // expected-warning {{comparison of distinct pointer types ('id<P1>' and 'A *')}}
|
||
|
|
}
|
||
|
|
|
||
|
|
int f9(int cond, id<P1> a, A *b) {
|
||
|
|
return (cond ? a : b).x; // expected-warning {{incompatible operand types ('id<P1>' and 'A *')}} \
|
||
|
|
expected-error {{property 'x' not found on object of type 'id'}}
|
||
|
|
}
|