llvm-project/clang/test/SemaObjC/protocol-id-test-3.m
Douglas Gregor 4f4946aaaa Whenever we complain about a failed initialization of a function or
method parameter, provide a note pointing at the parameter itself so
the user does not have to manually look for the function/method being
called and match up parameters to arguments. For example, we now get:

t.c:4:5: warning: incompatible pointer types passing 'long *' to
parameter of
      type 'int *' [-pedantic]
  f(long_ptr);
    ^~~~~~~~
t.c:1:13: note: passing argument to parameter 'x' here
void f(int *x);
            ^

llvm-svn: 102038
2010-04-22 00:20:18 +00:00

95 lines
1.7 KiB
Objective-C

// RUN: %clang_cc1 -pedantic -fsyntax-only -verify %s
@protocol MyProto1
@end
@protocol MyProto2
@end
@interface INTF @end
id<MyProto1> Func(INTF <MyProto1, MyProto2> *p2) // expected-note 2{{passing argument to parameter 'p2' here}}
{
return p2;
}
id<MyProto1> Gunc(id <MyProto1, MyProto2>p2)
{
return p2;
}
id<MyProto1> Gunc1(id <MyProto1, MyProto2>p2)
{
return p2;
}
id<MyProto1, MyProto2> Gunc2(id <MyProto1>p2)
{
Func(p2); // expected-warning {{passing 'id<MyProto1>' to parameter of incompatible type 'INTF<MyProto1,MyProto2> *'}}
return p2; // expected-warning {{returning 'id<MyProto1>' from a function with incompatible result type 'id<MyProto1,MyProto2>'}}
}
id<MyProto1> Gunc3(id <MyProto2>p2)
{
return p2; // expected-warning {{returning 'id<MyProto2>' from a function with incompatible result type 'id<MyProto1>'}}
}
id<MyProto1, MyProto2> Gunc4(id <MyProto2, MyProto1>p2)
{
return p2;
}
INTF<MyProto1> * Hunc(id <MyProto1, MyProto2>p2)
{
return p2;
}
INTF<MyProto1> * Hunc1(id <MyProto1, MyProto2>p2)
{
return p2;
}
INTF<MyProto1, MyProto2> * Hunc2(id <MyProto1>p2)
{
Func(p2); // expected-warning {{passing 'id<MyProto1>' to parameter of incompatible type 'INTF<MyProto1,MyProto2> *'}}
return p2; // expected-warning {{returning 'id<MyProto1>' from a function with incompatible result type 'INTF<MyProto1,MyProto2> *'}}
}
INTF<MyProto1> * Hunc3(id <MyProto2>p2)
{
return p2; // expected-warning {{returning 'id<MyProto2>' from a function with incompatible result type 'INTF<MyProto1> *'}}
}
INTF<MyProto1, MyProto2> * Hunc4(id <MyProto2, MyProto1>p2)
{
return p2;
}
id Iunc(id <MyProto1, MyProto2>p2)
{
return p2;
}
id<MyProto1> Iunc1(id p2)
{
return p2;
}
id<MyProto1, MyProto2> Iunc2(id p2)
{
Iunc(p2);
return p2;
}