/* GNU Objective-C Runtime API.
- Copyright (C) 1993, 1995, 1996, 1997 Free Software Foundation, Inc.
+ Copyright (C) 1993, 1995, 1996, 1997, 2001, 2002, 2003, 2004, 2005,
+ 2007, 2009 Free Software Foundation, Inc.
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify it
+GCC is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
-Free Software Foundation; either version 2, or (at your option) any
+Free Software Foundation; either version 3, or (at your option) any
later version.
-GNU CC is distributed in the hope that it will be useful, but WITHOUT
+GCC is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
License for more details.
-You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+<http://www.gnu.org/licenses/>. */
-/* As a special exception, if you link this library with files compiled
- with GCC to produce an executable, this does not cause the resulting
- executable to be covered by the GNU General Public License. This
- exception does not however invalidate any other reasons why the
- executable file might be covered by the GNU General Public License. */
#ifndef __objc_api_INCLUDE_GNU
#define __objc_api_INCLUDE_GNU
-#include "objc/objc.h"
-#include "objc/hash.h"
-#include "objc/thr.h"
+#include "objc.h"
+#include "hash.h"
+#include "thr.h"
+#include "objc-decls.h"
#include <stdio.h>
#include <stdarg.h>
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
/* For functions which return Method_t */
#define METHOD_NULL (Method_t)0
/* Boolean typedefs */
-/*
-** Method descriptor returned by introspective Object methods.
-** This is really just the first part of the more complete objc_method
-** structure defined below and used internally by the runtime.
-*/
+/* Method descriptor returned by introspective Object methods.
+ This is really just the first part of the more complete objc_method
+ structure defined below and used internally by the runtime. */
struct objc_method_description
{
SEL name; /* this is a selector, not a string */
#define _C_FLT 'f'
#define _C_DBL 'd'
#define _C_BFLD 'b'
+#define _C_BOOL 'B'
#define _C_VOID 'v'
#define _C_UNDEF '?'
#define _C_PTR '^'
#define _C_UNION_E ')'
#define _C_STRUCT_B '{'
#define _C_STRUCT_E '}'
+#define _C_VECTOR '!'
+#define _C_COMPLEX 'j'
-/*
-** Error handling
-**
-** Call objc_error() or objc_verror() to record an error; this error
-** routine will generally exit the program but not necessarily if the
-** user has installed his own error handler.
-**
-** Call objc_set_error_handler to assign your own function for
-** handling errors. The function should return YES if it is ok
-** to continue execution, or return NO or just abort if the
-** program should be stopped. The default error handler is just to
-** print a message on stderr.
-**
-** The error handler function should be of type objc_error_handler
-** The first parameter is an object instance of relevance.
-** The second parameter is an error code.
-** The third parameter is a format string in the printf style.
-** The fourth parameter is a variable list of arguments.
-*/
-extern void objc_error(id object, int code, const char* fmt, ...);
-extern void objc_verror(id object, int code, const char* fmt, va_list ap);
-typedef BOOL (*objc_error_handler)(id, int code, const char *fmt, va_list ap);
-objc_error_handler objc_set_error_handler(objc_error_handler func);
-
-/*
-** Error codes
-** These are used by the runtime library, and your
-** error handling may use them to determine if the error is
-** hard or soft thus whether execution can continue or abort.
-*/
-#define OBJC_ERR_UNKNOWN 0 /* Generic error */
-
-#define OBJC_ERR_OBJC_VERSION 1 /* Incorrect runtime version */
-#define OBJC_ERR_GCC_VERSION 2 /* Incorrect compiler version */
-#define OBJC_ERR_MODULE_SIZE 3 /* Bad module size */
-#define OBJC_ERR_PROTOCOL_VERSION 4 /* Incorrect protocol version */
-
-#define OBJC_ERR_MEMORY 10 /* Out of memory */
-
-#define OBJC_ERR_RECURSE_ROOT 20 /* Attempt to archive the root
- object more than once. */
-#define OBJC_ERR_BAD_DATA 21 /* Didn't read expected data */
-#define OBJC_ERR_BAD_KEY 22 /* Bad key for object */
-#define OBJC_ERR_BAD_CLASS 23 /* Unknown class */
-#define OBJC_ERR_BAD_TYPE 24 /* Bad type specification */
-#define OBJC_ERR_NO_READ 25 /* Cannot read stream */
-#define OBJC_ERR_NO_WRITE 26 /* Cannot write stream */
-#define OBJC_ERR_STREAM_VERSION 27 /* Incorrect stream version */
-#define OBJC_ERR_BAD_OPCODE 28 /* Bad opcode */
-
-#define OBJC_ERR_UNIMPLEMENTED 30 /* Method is not implemented */
-
-#define OBJC_ERR_BAD_STATE 40 /* Bad thread state */
-
-/*
-** Set this variable nonzero to print a line describing each
-** message that is sent. (this is currently disabled)
-*/
-extern BOOL objc_trace;
+#include "deprecated/objc_error.h"
/* For every class which happens to have statically allocated instances in
struct objc_static_instances
{
char *class_name;
+#ifdef __cplusplus
+ id instances[1];
+#else
id instances[0];
+#endif
};
-/*
-** Whereas a Module (defined further down) is the root (typically) of a file,
-** a Symtab is the root of the class and category definitions within the
-** module.
-**
-** A Symtab contains a variable length array of pointers to classes and
-** categories defined in the module.
-*/
+/* Whereas a Module (defined further down) is the root (typically) of a file,
+ a Symtab is the root of the class and category definitions within the
+ module.
+
+ A Symtab contains a variable length array of pointers to classes and
+ categories defined in the module. */
typedef struct objc_symtab {
unsigned long sel_ref_cnt; /* Unknown. */
SEL refs; /* Unknown. */
** That array holds a pointer to each module structure of the executable.
*/
typedef struct objc_module {
- unsigned long version; /* Compiler revision. */
- unsigned long size; /* sizeof(Module). */
- const char* name; /* Name of the file where the
- module was generated. The
- name includes the path. */
-
- Symtab_t symtab; /* Pointer to the Symtab of
- the module. The Symtab
- holds an array of
- pointers to
- the classes and categories
- defined in the module. */
+ unsigned long version; /* Version of the Module data structure. */
+ unsigned long size; /* sizeof(Module) according to the compiler -
+ only used to sanity check that it matches
+ sizeof(Module) according to the
+ runtime. */
+ const char* name; /* Name of the file used to compile the
+ module - not set by modern compilers for
+ security reasons. */
+ Symtab_t symtab; /* Pointer to the Symtab of the module. The
+ Symtab holds an array of pointers to the
+ classes and categories defined in the
+ module. */
} Module, *Module_t;
** The compiler generates one of these structures for a class that has
** instance variables defined in its specification.
*/
-typedef struct objc_ivar* Ivar_t;
-typedef struct objc_ivar_list {
- int ivar_count; /* Number of structures (Ivar)
- contained in the list. One
- structure per instance
- variable defined in the
- class. */
- struct objc_ivar {
+typedef struct objc_ivar {
const char* ivar_name; /* Name of the instance
variable as entered in the
class definition. */
int ivar_offset; /* Byte offset from the base
address of the instance
structure to the variable. */
+} *Ivar_t;
- } ivar_list[1]; /* Variable length
+typedef struct objc_ivar_list {
+ int ivar_count; /* Number of structures (Ivar)
+ contained in the list. One
+ structure per instance
+ variable defined in the
+ class. */
+ struct objc_ivar ivar_list[1]; /* Variable length
structure. */
} IvarList, *IvarList_t;
** and categories can break them across modules. To handle this problem is a
** singly linked list of methods.
*/
-typedef struct objc_method Method;
-typedef Method* Method_t;
+typedef struct objc_method {
+ SEL method_name; /* This variable is the method's
+ name. It is a char*.
+ The unique integer passed to
+ objc_msg_send is a char* too.
+ It is compared against
+ method_name using strcmp. */
+ const char* method_types; /* Description of the method's
+ parameter list. Useful for
+ debuggers. */
+ IMP method_imp; /* Address of the method in the
+ executable. */
+} Method, *Method_t;
+
typedef struct objc_method_list {
- struct objc_method_list* method_next; /* This variable is used to link
- a method list to another. It
- is a singly linked list. */
- int method_count; /* Number of methods defined in
- this structure. */
- struct objc_method {
- SEL method_name; /* This variable is the method's
- name. It is a char*.
- The unique integer passed to
- objc_msg_send is a char* too.
- It is compared against
- method_name using strcmp. */
- const char* method_types; /* Description of the method's
- parameter list. Useful for
- debuggers. */
- IMP method_imp; /* Address of the method in the
- executable. */
- } method_list[1]; /* Variable length
- structure. */
+ struct objc_method_list* method_next; /* This variable is used to link
+ a method list to another. It
+ is a singly linked list. */
+ int method_count; /* Number of methods defined in
+ this structure. */
+ Method method_list[1]; /* Variable length
+ structure. */
} MethodList, *MethodList_t;
struct objc_protocol_list {
struct objc_protocol_list *next;
- int count;
+ size_t count;
Protocol *list[1];
};
typedef struct objc_super {
id self; /* Id of the object sending
the message. */
+#ifdef __cplusplus
+ Class super_class;
+#else
Class class; /* Object's super class. */
+#endif
} Super, *Super_t;
IMP objc_msg_lookup_super(Super_t super, SEL sel);
** This may e.g. try to load in the class using dynamic loading.
** The function is guaranteed to be passed a non-NULL name string.
*/
-extern Class (*_objc_lookup_class)(const char *name);
+objc_EXPORT Class (*_objc_lookup_class)(const char *name);
/*
** This is a hook which is called by __objc_exec_class every time a class
** dynamic loader determine the classes that have been loaded when
** an object file is dynamically linked in.
*/
-extern void (*_objc_load_callback)(Class class, Category* category);
+objc_EXPORT void (*_objc_load_callback)(Class _class, Category* category);
/*
** Hook functions for allocating, copying and disposing of instances
*/
-extern id (*_objc_object_alloc)(Class class);
-extern id (*_objc_object_copy)(id object);
-extern id (*_objc_object_dispose)(id object);
+objc_EXPORT id (*_objc_object_alloc)(Class _class);
+objc_EXPORT id (*_objc_object_copy)(id object);
+objc_EXPORT id (*_objc_object_dispose)(id object);
/*
** Standard functions for memory allocation and disposal.
** Users should call the normal objc routines above for
** memory allocation and disposal within their programs.
*/
-extern void *(*_objc_malloc)(size_t);
-extern void *(*_objc_atomic_malloc)(size_t);
-extern void *(*_objc_valloc)(size_t);
-extern void *(*_objc_realloc)(void *, size_t);
-extern void *(*_objc_calloc)(size_t, size_t);
-extern void (*_objc_free)(void *);
+objc_EXPORT void *(*_objc_malloc)(size_t);
+objc_EXPORT void *(*_objc_atomic_malloc)(size_t);
+objc_EXPORT void *(*_objc_valloc)(size_t);
+objc_EXPORT void *(*_objc_realloc)(void *, size_t);
+objc_EXPORT void *(*_objc_calloc)(size_t, size_t);
+objc_EXPORT void (*_objc_free)(void *);
/*
-** Hook for method forwarding. This makes it easy to substitute a
+** Hooks for method forwarding. This makes it easy to substitute a
** library, such as ffcall, that implements closures, thereby avoiding
-** gcc's __builtin_apply problems.
+** gcc's __builtin_apply problems. __objc_msg_forward2's result will
+** be preferred over that of __objc_msg_forward if both are set and
+** return non-NULL.
*/
-extern IMP (*__objc_msg_forward)(SEL);
+objc_EXPORT IMP (*__objc_msg_forward)(SEL);
+objc_EXPORT IMP (*__objc_msg_forward2)(id, SEL);
+
+#include "deprecated/objc_unexpected_exception.h"
-Method_t class_get_class_method(MetaClass class, SEL aSel);
+Method_t class_get_class_method(MetaClass _class, SEL aSel);
-Method_t class_get_instance_method(Class class, SEL aSel);
+Method_t class_get_instance_method(Class _class, SEL aSel);
Class class_pose_as(Class impostor, Class superclass);
BOOL sel_is_mapped (SEL aSel);
-extern id class_create_instance(Class class);
+extern id class_create_instance(Class _class);
static inline const char *
-class_get_class_name(Class class)
+class_get_class_name(Class _class)
{
- return CLS_ISCLASS(class)?class->name:((class==Nil)?"Nil":0);
+ return CLS_ISCLASS(_class)?_class->name:((_class==Nil)?"Nil":0);
}
static inline long
-class_get_instance_size(Class class)
+class_get_instance_size(Class _class)
{
- return CLS_ISCLASS(class)?class->instance_size:0;
+ return CLS_ISCLASS(_class)?_class->instance_size:0;
}
static inline MetaClass
-class_get_meta_class(Class class)
+class_get_meta_class(Class _class)
{
- return CLS_ISCLASS(class)?class->class_pointer:Nil;
+ return CLS_ISCLASS(_class)?_class->class_pointer:Nil;
}
static inline Class
-class_get_super_class(Class class)
+class_get_super_class(Class _class)
{
- return CLS_ISCLASS(class)?class->super_class:Nil;
+ return CLS_ISCLASS(_class)?_class->super_class:Nil;
}
static inline int
-class_get_version(Class class)
+class_get_version(Class _class)
{
- return CLS_ISCLASS(class)?class->version:-1;
+ return CLS_ISCLASS(_class)?_class->version:-1;
}
static inline BOOL
-class_is_class(Class class)
+class_is_class(Class _class)
{
- return CLS_ISCLASS(class);
+ return CLS_ISCLASS(_class);
}
static inline BOOL
-class_is_meta_class(Class class)
+class_is_meta_class(Class _class)
{
- return CLS_ISMETA(class);
+ return CLS_ISMETA(_class);
}
static inline void
-class_set_version(Class class, long version)
+class_set_version(Class _class, long version)
{
- if (CLS_ISCLASS(class))
- class->version = version;
+ if (CLS_ISCLASS(_class))
+ _class->version = version;
}
static inline void *
-class_get_gc_object_type (Class class)
+class_get_gc_object_type (Class _class)
{
- return CLS_ISCLASS(class) ? class->gc_object_type : NULL;
+ return CLS_ISCLASS(_class) ? _class->gc_object_type : NULL;
}
/* Mark the instance variable as innaccessible to the garbage collector */
-extern void class_ivar_set_gcinvisible (Class class,
+extern void class_ivar_set_gcinvisible (Class _class,
const char* ivarname,
BOOL gcInvisible);
return (method!=METHOD_NULL)?method->method_imp:(IMP)0;
}
-IMP get_imp (Class class, SEL sel);
-
-/* Redefine on NeXTSTEP so as not to conflict with system function */
-#ifdef __NeXT__
-#define object_copy gnu_object_copy
-#define object_dispose gnu_object_dispose
-#endif
+IMP get_imp (Class _class, SEL sel);
id object_copy(id object);
}
static inline BOOL
-object_is_class(id object)
+object_is_class (id object)
{
- return CLS_ISCLASS((Class)object);
+ return ((object != nil) && CLS_ISMETA (object->class_pointer));
}
-
+
static inline BOOL
-object_is_instance(id object)
+object_is_instance (id object)
{
- return (object!=nil)&&CLS_ISCLASS(object->class_pointer);
+ return ((object != nil) && CLS_ISCLASS (object->class_pointer));
}
static inline BOOL
-object_is_meta_class(id object)
+object_is_meta_class (id object)
{
- return CLS_ISMETA((Class)object);
+ return ((object != nil)
+ && !object_is_instance (object)
+ && !object_is_class (object));
}
struct sarray*
objc_get_uninstalled_dtable(void);
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
#endif /* not __objc_api_INCLUDE_GNU */
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