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Patch for initialization of class's Meta-class metadata. 

llvm-svn: 43235
This commit is contained in:
Fariborz Jahanian 2007-10-23 00:02:02 +00:00
parent 1f2dd35898
commit d752eae488
1 changed files with 65 additions and 1 deletions
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66
clang/Driver/RewriteTest.cpp
View File

@ -374,7 +374,71 @@ void RewriteTest::WriteObjcClassMetaData(ObjcImplementationDecl *IDecl) {
}
printf("};\n");
}
}
// Declaration of top-level metadata
/* struct _objc_meta_class {
const char *root_class_name;
const char *super_class_name;
char *name;
long version;
long info;
long instance_size;
struct objc_ivar_list *ivars;
struct objc_method_list *methods;
struct objc_cache *cache;
struct objc_protocol_list *protocols;
const char *ivar_layout;
struct _objc_class_ext *ext;
};
*/
static bool objc_meta_class = false;
if (!objc_meta_class) {
printf("\nstruct _objc_class {\n");
printf("\tconst char *root_class_name;\n");
printf("\tconst char *super_class_name;\n");
printf("\tchar *name;\n");
printf("\tlong version;\n");
printf("\tlong info;\n");
printf("\tlong instance_size;\n");
printf("\tstruct objc_ivar_list *ivars;\n");
printf("\tstruct objc_method_list *methods;\n");
printf("\tstruct objc_cache *cache;\n");
printf("\tstruct objc_protocol_list *protocols;\n");
printf("\tconst char *ivar_layout;\n");
printf("\tstruct _objc_class_ext *ext;\n");
printf("};\n");
objc_meta_class = true;
}
// Meta-class metadata generation.
ObjcInterfaceDecl *RootClass = 0;
ObjcInterfaceDecl *SuperClass = CDecl->getSuperClass();
while (SuperClass) {
RootClass = SuperClass;
SuperClass = SuperClass->getSuperClass();
}
SuperClass = CDecl->getSuperClass();
printf("\nstatic struct _objc_class _OBJC_METACLASS_%s "
"__attribute__ ((section (\"__OBJC, __meta_class\")))= "
"{\n\t\"%s\"", CDecl->getName(), RootClass ? RootClass->getName()
: CDecl->getName());
if (SuperClass)
printf(", \"%s\", \"%s\"", SuperClass->getName(), CDecl->getName());
else
printf(", 0, \"%s\"", CDecl->getName());
// FIXME: better way of getting size struct _objc_class (48)
// TODO: 'ivars' field for root class is currently set to 0.
// 'info' field is initialized to CLS_META(2) for metaclass
printf(", 0,2,48,0");
if (CDecl->getNumClassMethods() > 0)
printf(", (struct objc_method_list *)&_OBJC_CLASS_METHODS_%s\n",
CDecl->getName());
else
printf(", 0\n");
printf("\t,0,0,0,0\n");
printf("};\n");
}
void RewriteTest::WriteObjcMetaData() {
int ClsDefCount = ClassImplementation.size();