Output from `clang -Wall -pedantic -Wextra -rewrite-objc -c case.m`

case.cpp

struct objc_selector; struct objc_class;
struct __rw_objc_super { struct objc_object *object; struct objc_object *superClass; };
#ifndef _REWRITER_typedef_Protocol
typedef struct objc_object Protocol;
#define _REWRITER_typedef_Protocol
#endif
#define __OBJC_RW_DLLIMPORT extern
__OBJC_RW_DLLIMPORT struct objc_object *objc_msgSend(struct objc_object *, struct objc_selector *, ...);
__OBJC_RW_DLLIMPORT struct objc_object *objc_msgSendSuper(struct objc_super *, struct objc_selector *, ...);
__OBJC_RW_DLLIMPORT struct objc_object* objc_msgSend_stret(struct objc_object *, struct objc_selector *, ...);
__OBJC_RW_DLLIMPORT struct objc_object* objc_msgSendSuper_stret(struct objc_super *, struct objc_selector *, ...);
__OBJC_RW_DLLIMPORT double objc_msgSend_fpret(struct objc_object *, struct objc_selector *, ...);
__OBJC_RW_DLLIMPORT struct objc_object *objc_getClass(const char *);
__OBJC_RW_DLLIMPORT struct objc_class *class_getSuperclass(struct objc_class *);
__OBJC_RW_DLLIMPORT struct objc_object *objc_getMetaClass(const char *);
__OBJC_RW_DLLIMPORT void objc_exception_throw(struct objc_object *);
__OBJC_RW_DLLIMPORT void objc_exception_try_enter(void *);
__OBJC_RW_DLLIMPORT void objc_exception_try_exit(void *);
__OBJC_RW_DLLIMPORT struct objc_object *objc_exception_extract(void *);
__OBJC_RW_DLLIMPORT int objc_exception_match(struct objc_class *, struct objc_object *);
__OBJC_RW_DLLIMPORT void objc_sync_enter(struct objc_object *);
__OBJC_RW_DLLIMPORT void objc_sync_exit(struct objc_object *);
__OBJC_RW_DLLIMPORT Protocol *objc_getProtocol(const char *);
#ifndef __FASTENUMERATIONSTATE
struct __objcFastEnumerationState {
  unsigned long state;
	void **itemsPtr;
	unsigned long *mutationsPtr;
	unsigned long extra[5];
};
__OBJC_RW_DLLIMPORT void objc_enumerationMutation(struct objc_object *);
#define __FASTENUMERATIONSTATE
#endif
#ifndef __NSCONSTANTSTRINGIMPL
struct __NSConstantStringImpl {
  int *isa;
  int flags;
  char *str;
  long length;
};
#ifdef CF_EXPORT_CONSTANT_STRING
extern "C" __declspec(dllexport) int __CFConstantStringClassReference[];
#else
__OBJC_RW_DLLIMPORT int __CFConstantStringClassReference[];
#endif
#define __NSCONSTANTSTRINGIMPL
#endif
#ifndef BLOCK_IMPL
#define BLOCK_IMPL
struct __block_impl {
  void *isa;
  int Flags;
  int Reserved;
  void *FuncPtr;
};
// Runtime copy/destroy helper functions (from Block_private.h)
#ifdef __OBJC_EXPORT_BLOCKS
extern "C" __declspec(dllexport) void _Block_object_assign(void *, const void *, const int);
extern "C" __declspec(dllexport) void _Block_object_dispose(const void *, const int);
extern "C" __declspec(dllexport) void *_NSConcreteGlobalBlock[32];
extern "C" __declspec(dllexport) void *_NSConcreteStackBlock[32];
#else
__OBJC_RW_DLLIMPORT void _Block_object_assign(void *, const void *, const int);
__OBJC_RW_DLLIMPORT void _Block_object_dispose(const void *, const int);
__OBJC_RW_DLLIMPORT void *_NSConcreteGlobalBlock[32];
__OBJC_RW_DLLIMPORT void *_NSConcreteStackBlock[32];
#endif
#endif
#define __block
#define __weak

#define __OFFSETOFIVAR__(TYPE, MEMBER) ((long long) &((TYPE *)0)->MEMBER)
static __NSConstantStringImpl __NSConstantStringImpl_a_m_0 __attribute__ ((section ("__DATA, __cfstring"))) = {__CFConstantStringClassReference,0x000007c8,"Yay",3};
static __NSConstantStringImpl __NSConstantStringImpl_a_m_1 __attribute__ ((section ("__DATA, __cfstring"))) = {__CFConstantStringClassReference,0x000007c8,"value = %@",10};
#include <Foundation/Foundation.h>

#ifndef _REWRITER_typedef_A
#define _REWRITER_typedef_A
typedef struct objc_object A;
#endif

struct A{
    struct NSObject_IMPL NSObject_IVARS;

	NSString *lowercaseString;
};

// @property (strong) NSString *lowercaseString;
/* @end */

// @implementation A
// @synthesize lowercaseString;
static NSString * _I_A_lowercaseString(struct A * self, SEL _cmd) { return ((struct A_IMPL *)self)->lowercaseString; }
static void _I_A_setLowercaseString_(struct A * self, SEL _cmd, NSString *lowercaseString) { ((struct A_IMPL *)self)->lowercaseString = lowercaseString; }


static id _I_A_init(struct A * self, SEL _cmd) {
    self = ((id (*)(struct objc_super *, SEL))(void *)objc_msgSendSuper)((struct objc_super){ (id)self, (id)class_getSuperclass((Class)objc_getClass("A")) }, sel_registerName("init"));
    if (self) {
        ((void (*)(id, SEL, NSString *))(void *)objc_msgSend)((id)self, sel_registerName("setLowercaseString:"), (NSString *)&__NSConstantStringImpl_a_m_0); // use upper case in setter => ok
        NSLog((NSString *)&__NSConstantStringImpl_a_m_1, ((NSString *(*)(id, SEL))(void *)objc_msgSend)((id)self, sel_registerName("lowercaseString"))); // use lower case in getter => ok
        // NSLog(@"value = %@", self.LowercaseString); // use upper case in getter => fail
    }
    return self;
}
// @end

int main(int argc, char **argv)
{
    A *a = ((id (*)(id, SEL))(void *)objc_msgSend)(objc_getClass("A"), sel_registerName("new")); // will show "Yay"
}

struct _objc_ivar {
	char *ivar_name;
	char *ivar_type;
	int ivar_offset;
};

static struct {
	int ivar_count;
	struct _objc_ivar ivar_list[1];
} _OBJC_INSTANCE_VARIABLES_A __attribute__ ((used, section ("__OBJC, __instance_vars")))= {
	1
	,{{"lowercaseString", "@\"NSString\"", __OFFSETOFIVAR__(struct A, lowercaseString)}
	 }
};

struct _objc_method {
	SEL _cmd;
	char *method_types;
	void *_imp;
};

static struct {
	struct _objc_method_list *next_method;
	int method_count;
	struct _objc_method method_list[3];
} _OBJC_INSTANCE_METHODS_A __attribute__ ((used, section ("__OBJC, __inst_meth")))= {
	0, 3
	,{{(SEL)"init", "@16@0:8", (void *)_I_A_init}
	  ,{(SEL)"lowercaseString", "@16@0:8", (void *)_I_A_lowercaseString}
	  ,{(SEL)"setLowercaseString:", "v24@0:8@16", (void *)_I_A_setLowercaseString_}
	 }
};

struct _objc_class {
	struct _objc_class *isa;
	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 struct _objc_class _OBJC_METACLASS_A __attribute__ ((used, section ("__OBJC, __meta_class")))= {
	(struct _objc_class *)"NSObject", "NSObject", "A", 0,2, sizeof(struct _objc_class), 0, 0
	,0,0,0,0
};

static struct _objc_class _OBJC_CLASS_A __attribute__ ((used, section ("__OBJC, __class")))= {
	&_OBJC_METACLASS_A, "NSObject", "A", 0,1,sizeof(struct A), (struct _objc_ivar_list *)&_OBJC_INSTANCE_VARIABLES_A
	, (struct _objc_method_list *)&_OBJC_INSTANCE_METHODS_A, 0
	,0,0,0
};

struct _objc_symtab {
	long sel_ref_cnt;
	SEL *refs;
	short cls_def_cnt;
	short cat_def_cnt;
	void *defs[1];
};

static struct _objc_symtab _OBJC_SYMBOLS __attribute__((used, section ("__OBJC, __symbols")))= {
	0, 0, 1, 0
	,&_OBJC_CLASS_A
};


struct _objc_module {
	long version;
	long size;
	const char *name;
	struct _objc_symtab *symtab;
};

static struct _objc_module _OBJC_MODULES __attribute__ ((used, section ("__OBJC, __module_info")))= {
	7, sizeof(struct _objc_module), "", &_OBJC_SYMBOLS
};