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Added missing source file - I guess that explains why it wasn't included in the make file...

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@30802 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
David Chisnall 2010-06-21 17:27:40 +00:00
parent 4c218bd770
commit 1a37e4936f
1 changed files with 61 additions and 0 deletions
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61
Source/ObjectiveC2/NSBlocks.m Normal file
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#import "objc/objc-api.h"
#import "objc/blocks_runtime.h"
#include <assert.h>
struct objc_class _NSConcreteGlobalBlock;
struct objc_class _NSConcreteStackBlock;
static struct objc_class _NSConcreteGlobalBlockMeta;
static struct objc_class _NSConcreteStackBlockMeta;
static struct objc_class _NSBlock;
static struct objc_class _NSBlockMeta;
void __objc_update_dispatch_table_for_class(Class);
extern struct sarray *__objc_uninstalled_dtable;
extern objc_mutex_t __objc_runtime_mutex;
static void createNSBlockSubclass(Class superclass, Class newClass,
Class metaClass, char *name)
{
// Initialize the metaclass
metaClass->class_pointer = superclass->class_pointer;
metaClass->super_class = superclass->class_pointer;
metaClass->info = _CLS_META;
metaClass->dtable = __objc_uninstalled_dtable;
// Set up the new class
newClass->class_pointer = metaClass;
newClass->super_class = superclass;
newClass->name = name;
newClass->info = _CLS_CLASS;
newClass->dtable = __objc_uninstalled_dtable;
// Initialize the dispatch table for the class and metaclass.
__objc_update_dispatch_table_for_class(metaClass);
__objc_update_dispatch_table_for_class(newClass);
CLS_SETINITIALIZED(metaClass);
CLS_SETINITIALIZED(newClass);
CLS_SETRESOLV(metaClass);
CLS_SETRESOLV(newClass);
// Add pointer from super class
objc_mutex_lock(__objc_runtime_mutex);
newClass->sibling_class = newClass->super_class->subclass_list;
newClass->super_class->subclass_list = newClass;
metaClass->sibling_class = metaClass->super_class->subclass_list;
metaClass->super_class->subclass_list = metaClass;
objc_mutex_unlock(__objc_runtime_mutex);
}
#define NEW_CLASS(super, sub) \
createNSBlockSubclass(super, &sub, &sub ## Meta, #sub)
BOOL objc_create_block_classes_as_subclasses_of(Class super)
{
if (_NSBlock.super_class != NULL) { return NO; }
NEW_CLASS(super, _NSBlock);
NEW_CLASS(&_NSBlock, _NSConcreteStackBlock);
NEW_CLASS(&_NSBlock, _NSConcreteGlobalBlock);
return YES;
}