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// RUN: %clang_cc1 -fsyntax-only -verify %s
// expected-no-diagnostics
@protocol P1
@end
@interface A <P1>
@end
@interface B : A
@end
@interface C : B
@end
template<typename T>
struct ConvertsTo {
operator T() const;
};
// conversion of C* to B* is better than conversion of C* to A*.
int &f0(A*);
float &f0(B*);
void test_f0(C *c) {
float &fr1 = f0(c);
}
// conversion of B* to A* is better than conversion of C* to A*
void f1(A*);
struct ConvertsToBoth {
private:
operator C*() const;
public:
operator B*() const;
};
void test_f1(ConvertsTo<B*> toB, ConvertsTo<C*> toC, ConvertsToBoth toBoth) {
f1(toB);
f1(toC);
f1(toBoth);
};
// A conversion to an a non-id object pointer type is better than a
// conversion to 'id'.
int &f2(A*);
float &f2(id);
void test_f2(B *b) {
int &ir = f2(b);
}
// A conversion to an a non-Class object pointer type is better than a
// conversion to 'Class'.
int &f3(A*);
float &f3(Class);
void test_f3(B *b) {
int &ir = f3(b);
}
// When both conversions convert to 'id' or 'Class', pick the most
// specific type to convert from.
void f4(id);
void test_f4(ConvertsTo<B*> toB, ConvertsTo<C*> toC, ConvertsToBoth toBoth) {
f4(toB);
f4(toC);
f4(toBoth);
}
void f5(id<P1>);
void test_f5(ConvertsTo<B*> toB, ConvertsTo<C*> toC, ConvertsToBoth toBoth) {
f5(toB);
f5(toC);
f5(toBoth);
}
// A conversion to an a non-id object pointer type is better than a
// conversion to qualified 'id'.
int &f6(A*);
float &f6(id<P1>);
void test_f6(B *b) {
int &ir = f6(b);
}
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