iOS clang 编译 oc 代码

clang -x objective-c -rewrite-objc -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk xxxxx.m

编译完xx.m以后,截取部分，如下：

extern "C" unsigned long OBJC_IVAR_$_ViewController$_testStr;

extern "C" unsigned long OBJC_IVAR_$_ViewController$_atestStr;

struct ViewController_IMPL {

	struct UIViewController_IMPL UIViewController_IVARS;

	NSString *_testStr;

	NSString *_atestStr;

};

/* @end */

#ifndef _REWRITER_typedef_NotificationVO

#define _REWRITER_typedef_NotificationVO

typedef struct objc_object NotificationVO;

typedef struct {} _objc_exc_NotificationVO;

#endif

struct NotificationVO_IMPL {

	struct NSObject_IMPL NSObject_IVARS;

};

/* @end */

// @interface ViewController ()

// @property (nonatomic,strong) NSString * testStr;

// @property (atomic,strong) NSString * atestStr;

/* @end */

// @implementation ViewController

static void _I_ViewController_viewDidLoad(ViewController * self, SEL _cmd) {

    ((void (*)(__rw_objc_super *, SEL))(void *)objc_msgSendSuper)((__rw_objc_super){(id)self, (id)class_getSuperclass(objc_getClass("ViewController"))}, sel_registerName("viewDidLoad"));

    ((void (*)(id, SEL, NSString *))(void *)objc_msgSend)((id)self, sel_registerName("setTestStr:"), (NSString *)&__NSConstantStringImpl__var_folders_05_lgchbchj0bs9m_wy5dlkgc580pdxk1_T_ViewController_95586e_mi_0);

    UITapGestureRecognizer * tap = ((UITapGestureRecognizer *(*)(id, SEL, id _Nullable, SEL _Nullable))(void *)objc_msgSend)((id)((UITapGestureRecognizer *(*)(id, SEL))(void *)objc_msgSend)((id)objc_getClass("UITapGestureRecognizer"), sel_registerName("alloc")), sel_registerName("initWithTarget:action:"), (id _Nullable)self, sel_registerName("tapFunc"));

    ((void (*)(id, SEL, BOOL))(void *)objc_msgSend)((id)((UIView *(*)(id, SEL))(void *)objc_msgSend)((id)self, sel_registerName("view")), sel_registerName("setUserInteractionEnabled:"), ((bool)1));

    ((void (*)(id, SEL, UIGestureRecognizer *))(void *)objc_msgSend)((id)((UIView *(*)(id, SEL))(void *)objc_msgSend)((id)self, sel_registerName("view")), sel_registerName("addGestureRecognizer:"), (UIGestureRecognizer *)tap);

    ((void (*)(id, SEL))(void *)objc_msgSend)((id)self, sel_registerName("dotest1"));

    int a = 5;

    for (int i = 0; i < 5; i++) {

        a = a + i;

    }

}

struct __ViewController__dotest1_block_impl_0 {

  struct __block_impl impl;

  struct __ViewController__dotest1_block_desc_0* Desc;

  __ViewController__dotest1_block_impl_0(void *fp, struct __ViewController__dotest1_block_desc_0 *desc, int flags=0) {

    impl.isa = &_NSConcreteStackBlock;

    impl.Flags = flags;

    impl.FuncPtr = fp;

    Desc = desc;

  }

};

static void __ViewController__dotest1_block_func_0(struct __ViewController__dotest1_block_impl_0 *__cself) {

            NSLog((NSString *)&__NSConstantStringImpl__var_folders_05_lgchbchj0bs9m_wy5dlkgc580pdxk1_T_ViewController_95586e_mi_3);

        }

static struct __ViewController__dotest1_block_desc_0 {

  size_t reserved;

  size_t Block_size;

} __ViewController__dotest1_block_desc_0_DATA = { 0, sizeof(struct __ViewController__dotest1_block_impl_0)};

struct __ViewController__dotest1_block_impl_1 {

  struct __block_impl impl;

  struct __ViewController__dotest1_block_desc_1* Desc;

  __ViewController__dotest1_block_impl_1(void *fp, struct __ViewController__dotest1_block_desc_1 *desc, int flags=0) {

    impl.isa = &_NSConcreteStackBlock;

    impl.Flags = flags;

    impl.FuncPtr = fp;

    Desc = desc;

  }

};

static void __ViewController__dotest1_block_func_1(struct __ViewController__dotest1_block_impl_1 *__cself) {

        NSLog((NSString *)&__NSConstantStringImpl__var_folders_05_lgchbchj0bs9m_wy5dlkgc580pdxk1_T_ViewController_95586e_mi_2);

        dispatch_sync(dispatch_get_main_queue(), ((void (*)())&__ViewController__dotest1_block_impl_0((void *)__ViewController__dotest1_block_func_0, &__ViewController__dotest1_block_desc_0_DATA)));

        NSLog((NSString *)&__NSConstantStringImpl__var_folders_05_lgchbchj0bs9m_wy5dlkgc580pdxk1_T_ViewController_95586e_mi_4);

    }

static struct __ViewController__dotest1_block_desc_1 {

  size_t reserved;

  size_t Block_size;

} __ViewController__dotest1_block_desc_1_DATA = { 0, sizeof(struct __ViewController__dotest1_block_impl_1)};

static void _I_ViewController_dotest1(ViewController * self, SEL _cmd) {

    NSLog((NSString *)&__NSConstantStringImpl__var_folders_05_lgchbchj0bs9m_wy5dlkgc580pdxk1_T_ViewController_95586e_mi_1);

    dispatch_async(dispatch_get_global_queue(0, 0), ((void (*)())&__ViewController__dotest1_block_impl_1((void *)__ViewController__dotest1_block_func_1, &__ViewController__dotest1_block_desc_1_DATA)));

    NSLog((NSString *)&__NSConstantStringImpl__var_folders_05_lgchbchj0bs9m_wy5dlkgc580pdxk1_T_ViewController_95586e_mi_5);

}

static void _I_ViewController_dotest2(ViewController * self, SEL _cmd) {

    NSLog((NSString *)&__NSConstantStringImpl__var_folders_05_lgchbchj0bs9m_wy5dlkgc580pdxk1_T_ViewController_95586e_mi_6);

}

struct __ViewController__tapFunc_block_impl_0 {

  struct __block_impl impl;

  struct __ViewController__tapFunc_block_desc_0* Desc;

  ViewController *self;

  __ViewController__tapFunc_block_impl_0(void *fp, struct __ViewController__tapFunc_block_desc_0 *desc, ViewController *_self, int flags=0) : self(_self) {

    impl.isa = &_NSConcreteStackBlock;

    impl.Flags = flags;

    impl.FuncPtr = fp;

    Desc = desc;

  }

};

static void __ViewController__tapFunc_block_func_0(struct __ViewController__tapFunc_block_impl_0 *__cself) {

  ViewController *self = __cself->self; // bound by copy

        ((void (*)(id, SEL, NSString *))(void *)objc_msgSend)((id)self, sel_registerName("setTestStr:"), (NSString *)&__NSConstantStringImpl__var_folders_05_lgchbchj0bs9m_wy5dlkgc580pdxk1_T_ViewController_95586e_mi_9);

        NSLog((NSString *)&__NSConstantStringImpl__var_folders_05_lgchbchj0bs9m_wy5dlkgc580pdxk1_T_ViewController_95586e_mi_10,((NSString *(*)(id, SEL))(void *)objc_msgSend)((id)self, sel_registerName("testStr")));

    }

static void __ViewController__tapFunc_block_copy_0(struct __ViewController__tapFunc_block_impl_0*dst, struct __ViewController__tapFunc_block_impl_0*src) {_Block_object_assign((void*)&dst->self, (void*)src->self, 3/*BLOCK_FIELD_IS_OBJECT*/);}

static void __ViewController__tapFunc_block_dispose_0(struct __ViewController__tapFunc_block_impl_0*src) {_Block_object_dispose((void*)src->self, 3/*BLOCK_FIELD_IS_OBJECT*/);}

static struct __ViewController__tapFunc_block_desc_0 {

  size_t reserved;

  size_t Block_size;

  void (*copy)(struct __ViewController__tapFunc_block_impl_0*, struct __ViewController__tapFunc_block_impl_0*);

  void (*dispose)(struct __ViewController__tapFunc_block_impl_0*);

} __ViewController__tapFunc_block_desc_0_DATA = { 0, sizeof(struct __ViewController__tapFunc_block_impl_0), __ViewController__tapFunc_block_copy_0, __ViewController__tapFunc_block_dispose_0};

struct __ViewController__tapFunc_block_impl_1 {

  struct __block_impl impl;

  struct __ViewController__tapFunc_block_desc_1* Desc;

  ViewController *self;

  __ViewController__tapFunc_block_impl_1(void *fp, struct __ViewController__tapFunc_block_desc_1 *desc, ViewController *_self, int flags=0) : self(_self) {

    impl.isa = &_NSConcreteStackBlock;

    impl.Flags = flags;

    impl.FuncPtr = fp;

    Desc = desc;

  }

};

static void __ViewController__tapFunc_block_func_1(struct __ViewController__tapFunc_block_impl_1 *__cself) {

  ViewController *self = __cself->self; // bound by copy

        ((void (*)(id, SEL, NSString *))(void *)objc_msgSend)((id)self, sel_registerName("setTestStr:"), (NSString *)&__NSConstantStringImpl__var_folders_05_lgchbchj0bs9m_wy5dlkgc580pdxk1_T_ViewController_95586e_mi_11);

        NSLog((NSString *)&__NSConstantStringImpl__var_folders_05_lgchbchj0bs9m_wy5dlkgc580pdxk1_T_ViewController_95586e_mi_12,((NSString *(*)(id, SEL))(void *)objc_msgSend)((id)self, sel_registerName("testStr")));

    }

static void __ViewController__tapFunc_block_copy_1(struct __ViewController__tapFunc_block_impl_1*dst, struct __ViewController__tapFunc_block_impl_1*src) {_Block_object_assign((void*)&dst->self, (void*)src->self, 3/*BLOCK_FIELD_IS_OBJECT*/);}

static void __ViewController__tapFunc_block_dispose_1(struct __ViewController__tapFunc_block_impl_1*src) {_Block_object_dispose((void*)src->self, 3/*BLOCK_FIELD_IS_OBJECT*/);}

static struct __ViewController__tapFunc_block_desc_1 {

  size_t reserved;

  size_t Block_size;

  void (*copy)(struct __ViewController__tapFunc_block_impl_1*, struct __ViewController__tapFunc_block_impl_1*);

  void (*dispose)(struct __ViewController__tapFunc_block_impl_1*);

} __ViewController__tapFunc_block_desc_1_DATA = { 0, sizeof(struct __ViewController__tapFunc_block_impl_1), __ViewController__tapFunc_block_copy_1, __ViewController__tapFunc_block_dispose_1};

struct __ViewController__tapFunc_block_impl_2 {

  struct __block_impl impl;

  struct __ViewController__tapFunc_block_desc_2* Desc;

  ViewController *self;

  __ViewController__tapFunc_block_impl_2(void *fp, struct __ViewController__tapFunc_block_desc_2 *desc, ViewController *_self, int flags=0) : self(_self) {

    impl.isa = &_NSConcreteStackBlock;

    impl.Flags = flags;

    impl.FuncPtr = fp;

    Desc = desc;

  }

};

static void __ViewController__tapFunc_block_func_2(struct __ViewController__tapFunc_block_impl_2 *__cself) {

  ViewController *self = __cself->self; // bound by copy

        NSLog((NSString *)&__NSConstantStringImpl__var_folders_05_lgchbchj0bs9m_wy5dlkgc580pdxk1_T_ViewController_95586e_mi_13,((NSString *(*)(id, SEL))(void *)objc_msgSend)((id)self, sel_registerName("testStr")));

    }

static void __ViewController__tapFunc_block_copy_2(struct __ViewController__tapFunc_block_impl_2*dst, struct __ViewController__tapFunc_block_impl_2*src) {_Block_object_assign((void*)&dst->self, (void*)src->self, 3/*BLOCK_FIELD_IS_OBJECT*/);}

static void __ViewController__tapFunc_block_dispose_2(struct __ViewController__tapFunc_block_impl_2*src) {_Block_object_dispose((void*)src->self, 3/*BLOCK_FIELD_IS_OBJECT*/);}

static struct __ViewController__tapFunc_block_desc_2 {

  size_t reserved;

  size_t Block_size;

  void (*copy)(struct __ViewController__tapFunc_block_impl_2*, struct __ViewController__tapFunc_block_impl_2*);

  void (*dispose)(struct __ViewController__tapFunc_block_impl_2*);

} __ViewController__tapFunc_block_desc_2_DATA = { 0, sizeof(struct __ViewController__tapFunc_block_impl_2), __ViewController__tapFunc_block_copy_2, __ViewController__tapFunc_block_dispose_2};

static void _I_ViewController_tapFunc(ViewController * self, SEL _cmd) {

    ((void (*)(id, SEL, NSNotificationName, id _Nullable))(void *)objc_msgSend)((id)((NSNotificationCenter *(*)(id, SEL))(void *)objc_msgSend)((id)objc_getClass("NSNotificationCenter"), sel_registerName("defaultCenter")), sel_registerName("postNotificationName:object:"), (NSString *)&__NSConstantStringImpl__var_folders_05_lgchbchj0bs9m_wy5dlkgc580pdxk1_T_ViewController_95586e_mi_7, (id _Nullable)__null);;

    NSLog((NSString *)&__NSConstantStringImpl__var_folders_05_lgchbchj0bs9m_wy5dlkgc580pdxk1_T_ViewController_95586e_mi_8);

    dispatch_queue_t q1 = dispatch_queue_create("com.qiye.q1", (&(_dispatch_queue_attr_concurrent)));

    dispatch_async(q1, ((void (*)())&__ViewController__tapFunc_block_impl_0((void *)__ViewController__tapFunc_block_func_0, &__ViewController__tapFunc_block_desc_0_DATA, self, 570425344)));

    dispatch_queue_t q2 = dispatch_queue_create("com.qiye.q2", (&(_dispatch_queue_attr_concurrent)));

    dispatch_async(q2, ((void (*)())&__ViewController__tapFunc_block_impl_1((void *)__ViewController__tapFunc_block_func_1, &__ViewController__tapFunc_block_desc_1_DATA, self, 570425344)));

    dispatch_queue_t q3 = dispatch_queue_create("com.qiye.q3", (&(_dispatch_queue_attr_concurrent)));

    dispatch_async(q3, ((void (*)())&__ViewController__tapFunc_block_impl_2((void *)__ViewController__tapFunc_block_func_2, &__ViewController__tapFunc_block_desc_2_DATA, self, 570425344)));

}

static void _I_ViewController_didReceiveMemoryWarning(ViewController * self, SEL _cmd) {

    ((void (*)(__rw_objc_super *, SEL))(void *)objc_msgSendSuper)((__rw_objc_super){(id)self, (id)class_getSuperclass(objc_getClass("ViewController"))}, sel_registerName("didReceiveMemoryWarning"));

}

static NSString * _I_ViewController_testStr(ViewController * self, SEL _cmd) { return (*(NSString **)((char *)self + OBJC_IVAR_$_ViewController$_testStr)); }

static void _I_ViewController_setTestStr_(ViewController * self, SEL _cmd, NSString *testStr) { (*(NSString **)((char *)self + OBJC_IVAR_$_ViewController$_testStr)) = testStr; }

static NSString * _I_ViewController_atestStr(ViewController * self, SEL _cmd) { return (*(NSString **)((char *)self + OBJC_IVAR_$_ViewController$_atestStr)); }

static void _I_ViewController_setAtestStr_(ViewController * self, SEL _cmd, NSString *atestStr) { (*(NSString **)((char *)self + OBJC_IVAR_$_ViewController$_atestStr)) = atestStr; }

// @end

extern "C" __declspec(dllimport) struct objc_cache _objc_empty_cache;

#pragma warning(disable:4273)

extern "C" unsigned long int OBJC_IVAR_$_ViewController$_testStr __attribute__ ((used, section ("__DATA,__objc_ivar"))) = __OFFSETOFIVAR__(struct ViewController, _testStr);

extern "C" unsigned long int OBJC_IVAR_$_ViewController$_atestStr __attribute__ ((used, section ("__DATA,__objc_ivar"))) = __OFFSETOFIVAR__(struct ViewController, _atestStr);

static struct /*_ivar_list_t*/ {

	unsigned int entsize;  // sizeof(struct _prop_t)

	unsigned int count;

	struct _ivar_t ivar_list[2];

} _OBJC_$_INSTANCE_VARIABLES_ViewController __attribute__ ((used, section ("__DATA,__objc_const"))) = {

	sizeof(_ivar_t),

	2,

	{{(unsigned long int *)&OBJC_IVAR_$_ViewController$_testStr, "_testStr", "@\"NSString\"", 3, 8},

	 {(unsigned long int *)&OBJC_IVAR_$_ViewController$_atestStr, "_atestStr", "@\"NSString\"", 3, 8}}

};

static struct /*_method_list_t*/ {

	unsigned int entsize;  // sizeof(struct _objc_method)

	unsigned int method_count;

	struct _objc_method method_list[9];

} _OBJC_$_INSTANCE_METHODS_ViewController __attribute__ ((used, section ("__DATA,__objc_const"))) = {

	sizeof(_objc_method),

	9,

	{{(struct objc_selector *)"viewDidLoad", "v16@0:8", (void *)_I_ViewController_viewDidLoad},

	{(struct objc_selector *)"dotest1", "v16@0:8", (void *)_I_ViewController_dotest1},

	{(struct objc_selector *)"dotest2", "v16@0:8", (void *)_I_ViewController_dotest2},

	{(struct objc_selector *)"tapFunc", "v16@0:8", (void *)_I_ViewController_tapFunc},

	{(struct objc_selector *)"didReceiveMemoryWarning", "v16@0:8", (void *)_I_ViewController_didReceiveMemoryWarning},

	{(struct objc_selector *)"testStr", "@16@0:8", (void *)_I_ViewController_testStr},

	{(struct objc_selector *)"setTestStr:", "v24@0:8@16", (void *)_I_ViewController_setTestStr_},

	{(struct objc_selector *)"atestStr", "@16@0:8", (void *)_I_ViewController_atestStr},

	{(struct objc_selector *)"setAtestStr:", "v24@0:8@16", (void *)_I_ViewController_setAtestStr_}}

};

static struct _class_ro_t _OBJC_METACLASS_RO_$_ViewController __attribute__ ((used, section ("__DATA,__objc_const"))) = {

	1, sizeof(struct _class_t), sizeof(struct _class_t),

	(unsigned int)0,

	0,

	"ViewController",

	0,

	0,

	0,

	0,

	0,

};

static struct _class_ro_t _OBJC_CLASS_RO_$_ViewController __attribute__ ((used, section ("__DATA,__objc_const"))) = {

	0, __OFFSETOFIVAR__(struct ViewController, _testStr), sizeof(struct ViewController_IMPL),

	(unsigned int)0,

	0,

	"ViewController",

	(const struct _method_list_t *)&_OBJC_$_INSTANCE_METHODS_ViewController,

	0,

	(const struct _ivar_list_t *)&_OBJC_$_INSTANCE_VARIABLES_ViewController,

	0,

	0,

};

extern "C" __declspec(dllimport) struct _class_t OBJC_METACLASS_$_UIViewController;

extern "C" __declspec(dllimport) struct _class_t OBJC_METACLASS_$_NSObject;

extern "C" __declspec(dllexport) struct _class_t OBJC_METACLASS_$_ViewController __attribute__ ((used, section ("__DATA,__objc_data"))) = {

	0, // &OBJC_METACLASS_$_NSObject,

	0, // &OBJC_METACLASS_$_UIViewController,

	0, // (void *)&_objc_empty_cache,

	0, // unused, was (void *)&_objc_empty_vtable,

	&_OBJC_METACLASS_RO_$_ViewController,

};

extern "C" __declspec(dllimport) struct _class_t OBJC_CLASS_$_UIViewController;

extern "C" __declspec(dllexport) struct _class_t OBJC_CLASS_$_ViewController __attribute__ ((used, section ("__DATA,__objc_data"))) = {

	0, // &OBJC_METACLASS_$_ViewController,

	0, // &OBJC_CLASS_$_UIViewController,

	0, // (void *)&_objc_empty_cache,

	0, // unused, was (void *)&_objc_empty_vtable,

	&_OBJC_CLASS_RO_$_ViewController,

};

static void OBJC_CLASS_SETUP_$_ViewController(void ) {

	OBJC_METACLASS_$_ViewController.isa = &OBJC_METACLASS_$_NSObject;

	OBJC_METACLASS_$_ViewController.superclass = &OBJC_METACLASS_$_UIViewController;

	OBJC_METACLASS_$_ViewController.cache = &_objc_empty_cache;

	OBJC_CLASS_$_ViewController.isa = &OBJC_METACLASS_$_ViewController;

	OBJC_CLASS_$_ViewController.superclass = &OBJC_CLASS_$_UIViewController;

	OBJC_CLASS_$_ViewController.cache = &_objc_empty_cache;

}

#pragma section(".objc_inithooks$B", long, read, write)

__declspec(allocate(".objc_inithooks$B")) static void *OBJC_CLASS_SETUP[] = {

	(void *)&OBJC_CLASS_SETUP_$_ViewController,

};

static struct _class_t *L_OBJC_LABEL_CLASS_$ [1] __attribute__((used, section ("__DATA, __objc_classlist,regular,no_dead_strip")))= {

	&OBJC_CLASS_$_ViewController,

};

static struct IMAGE_INFO { unsigned version; unsigned flag; } _OBJC_IMAGE_INFO = { 0, 2 };

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