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/* Test the Modern GNU Objective-C Runtime API.
This is test 'objc', covering all functions starting with 'objc'. */
/* { dg-do run } */
/* { dg-skip-if "No API#2 pre-Darwin9" { *-*-darwin[5-8]* } { "-fnext-runtime" } { "" } } */
/* { dg-xfail-run-if "Needs OBJC2 ABI" { *-*-darwin* && { lp64 && { ! objc2 } } } { "-fnext-runtime" } { "" } } */
/* To get the modern GNU Objective-C Runtime API, you include
objc/runtime.h. */
#include <objc/runtime.h>
#include <stdlib.h>
#include <iostream>
#include <cstring>
@interface MyRootClass
{ Class isa; }
+ alloc;
- init;
+ initialize;
@end
@implementation MyRootClass
+ alloc { return class_createInstance (self, 0); }
- init { return self; }
+ initialize { return self; }
@end
@protocol MyProtocol
- (id) variable;
@end
@protocol MySecondProtocol
- (id) setVariable: (id)value;
@end
@interface MySubClass : MyRootClass <MyProtocol>
{ id variable_ivar; }
- (void) setVariable: (id)value;
- (id) variable;
@end
@implementation MySubClass
- (void) setVariable: (id)value { variable_ivar = value; }
- (id) variable { return variable_ivar; }
@end
int main ()
{
/* Functions are tested in alphabetical order. */
std::cout << "Testing objc_allocateClassPair ()...\n";
{
Class new_root_class = objc_allocateClassPair (Nil, "MyNewRootClass", 0);
Class new_class = objc_allocateClassPair (objc_getClass ("MyRootClass"), "MyNewSubClass", 0);
/* A new root class would obviously need at least an 'isa'
instance variable. We don't add it so we never actually
instantiate an instance of the class, which wouldn't work. */
objc_registerClassPair (new_root_class);
objc_registerClassPair (new_class);
if (std::strcmp (class_getName (new_class), "MyNewSubClass") != 0)
abort ();
if (class_getSuperclass (new_class) != objc_getClass ("MyRootClass"))
abort ();
if (std::strcmp (class_getName (new_root_class), "MyNewRootClass") != 0)
abort ();
if (class_getSuperclass (new_root_class) != Nil)
abort ();
{
MySubClass *o = [[objc_getClass ("MyNewSubClass") alloc] init];
if (object_getClass (o) != objc_getClass ("MyNewSubClass"))
abort ();
}
}
std::cout << "Testing objc_copyProtocolList ()...\n";
{
/* Make sure both our two protocols are known to the runtime. */
id my_protocol = @protocol (MyProtocol);
id my_second_protocol = @protocol (MySecondProtocol);
unsigned int count;
Protocol ** list = objc_copyProtocolList (&count);
if (count != 2)
abort ();
if (! ((std::strcmp (protocol_getName (list[0]), "MyProtocol") == 0
&& std::strcmp (protocol_getName (list[1]), "MySecondProtocol") == 0)
|| (std::strcmp (protocol_getName (list[0]), "MySecondProtocol") == 0
&& std::strcmp (protocol_getName (list[1]), "MyProtocol") == 0)))
abort ();
if (list[2] != NULL)
abort ();
}
std::cout << "Testing objc_disposeClassPair ()...\n";
{
Method method = class_getInstanceMethod (objc_getClass ("MySubClass"), @selector (setVariable:));
Class new_class = objc_allocateClassPair (objc_getClass ("MyRootClass"), "MyNewSubClass2", 0);
if (new_class == Nil)
abort ();
/* Add a bit of everything to the class to exercise undoing all these changes. */
/* Instance variable. */
class_addIvar (new_class, "my_variable", sizeof (float), __alignof__ (float), @encode (float));
/* Instance method. */
class_addMethod (new_class, @selector (setVariable:), method_getImplementation (method),
method_getTypeEncoding (method));
/* Class method. */
class_addMethod (object_getClass (new_class), @selector (setVariable:), method_getImplementation (method),
method_getTypeEncoding (method));
/* Protocol. */
class_addProtocol (new_class, @protocol (MyProtocol));
objc_disposeClassPair (new_class);
}
/* This function currently does not exist with the GNU runtime. */
/* std::cout << "Testing objc_duplicateClass ()...\n"; */
/* TODO - Test it when implemented in the GNU Runtime */
/* std::cout << "Testing objc_getAssociatedObject ()...\n"; */
std::cout << "Testing objc_getClass ()...\n";
{
if (std::strcmp (class_getName (objc_getClass ("MySubClass")),
"MySubClass") != 0)
abort ();
}
std::cout << "Testing objc_getClassList ()...\n";
{
Class *list;
int i, count, other_count;
count = objc_getClassList (NULL, 0);
/* count most likely will be 5, (MyRootClass, MySubClass,
Protocol, Object, NXConstantString). */
if (count < 3)
abort ();
list = (Class *)(malloc (sizeof (Class) * count));
other_count = objc_getClassList (list, count);
if (other_count != count)
abort ();
/* Spot-check: search for class 'MyRootClass' in the list. */
for (i = 0; i < count; i++)
{
if (std::strcmp (class_getName (list[i]), "MyRootClass") == 0)
break;
}
if (i == count)
abort ();
/* Spot-check: search for class 'MySubClass' in the list. */
for (i = 0; i < count; i++)
{
if (std::strcmp (class_getName (list[i]), "MySubClass") == 0)
break;
}
if (i == count)
abort ();
/* Spot-check: search for class 'Protocol' in the list. */
for (i = 0; i < count; i++)
{
if (std::strcmp (class_getName (list[i]), "Protocol") == 0)
break;
}
if (i == count)
abort ();
}
/* This function does not exist with the GNU runtime. */
/* std::cout << "Testing objc_getFutureClass ()...\n"; */
std::cout << "Testing objc_getMetaClass ()...\n";
{
if (! class_isMetaClass (objc_getMetaClass ("MyRootClass")))
abort ();
}
std::cout << "Testing objc_getProtocol ()...\n";
{
if (! protocol_isEqual (objc_getProtocol ("MyProtocol"), @protocol (MyProtocol)))
abort ();
}
std::cout << "Testing objc_getRequiredClass ()...\n";
{
if (std::strcmp (class_getName (objc_getRequiredClass ("MyRootClass")),
"MyRootClass") != 0)
abort ();
}
std::cout << "Testing objc_lookUpClass ()...\n";
{
if (std::strcmp (class_getName (objc_lookUpClass ("MyRootClass")),
"MyRootClass") != 0)
abort ();
}
/* This function does not exist with the GNU runtime. */
/* std::cout << "Testing objc_setFutureClass ()...\n"; */
std::cout << "Testing objc_registerClassPair ()...\n";
{
Class new_class = objc_allocateClassPair (objc_getClass ("MySubClass"), "MySubSubClass", 0);
class_addProtocol (new_class, @protocol (MySecondProtocol));
objc_registerClassPair (new_class);
if (std::strcmp (class_getName (new_class), "MySubSubClass") != 0)
abort ();
if (class_getSuperclass (new_class) != objc_getClass ("MySubClass"))
abort ();
if (! class_conformsToProtocol (new_class, @protocol (MySecondProtocol)))
abort ();
}
/* TODO - Test it when implemented in the GNU Runtime */
/* std::cout << "Testing objc_removeAssociatedObjects ()...\n"; */
/* TODO - Test it when implemented in the GNU Runtime */
/* std::cout << "Testing objc_setAssociatedObject ()...\n"; */
return (0);
}
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