/* Test Objective-C method encodings. */
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/* Test Objective-C method encodings. */
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/* The _encoded_ parameter offsets for Objective-C methods are
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/* The _encoded_ parameter offsets for Objective-C methods are
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computed inductively as follows:
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computed inductively as follows:
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- The first paramter (self) has offset 0;
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- The first paramter (self) has offset 0;
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- The k-th parameter (k > 1) has offset equal to the
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- The k-th parameter (k > 1) has offset equal to the
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sum of:
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sum of:
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- the offset of the k-1-st paramter
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- the offset of the k-1-st paramter
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- the (void *)-promoted size of the k-1-st parameter.
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- the (void *)-promoted size of the k-1-st parameter.
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Note that the encoded offsets need not correspond
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Note that the encoded offsets need not correspond
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to the actual placement of parameters (relative to 'self')
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to the actual placement of parameters (relative to 'self')
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on the stack! Your target's ABI may have very different
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on the stack! Your target's ABI may have very different
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opinions on the matter. */
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opinions on the matter. */
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/* Contributed by Ziemowit Laski <zlaski@apple.com>. */
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/* Contributed by Ziemowit Laski <zlaski@apple.com>. */
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/* { dg-do run } */
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/* { dg-do run } */
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#include <objc/objc.h>
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#include <objc/objc.h>
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#include <objc/Object.h>
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#include <objc/Object.h>
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#ifdef __NEXT_RUNTIME__
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#ifdef __NEXT_RUNTIME__
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#define METHOD Method
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#define METHOD Method
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#define OBJC_GETCLASS objc_getClass
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#define OBJC_GETCLASS objc_getClass
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#define CLASS_GETINSTANCEMETHOD class_getInstanceMethod
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#define CLASS_GETINSTANCEMETHOD class_getInstanceMethod
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#else
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#else
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#include <objc/objc-api.h>
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#include <objc/objc-api.h>
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#define METHOD Method_t
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#define METHOD Method_t
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#define OBJC_GETCLASS objc_get_class
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#define OBJC_GETCLASS objc_get_class
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#define CLASS_GETINSTANCEMETHOD class_get_instance_method
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#define CLASS_GETINSTANCEMETHOD class_get_instance_method
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#endif
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#endif
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extern int sscanf(const char *str, const char *format, ...);
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extern int sscanf(const char *str, const char *format, ...);
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extern void abort(void);
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extern void abort(void);
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#define CHECK_IF(expr) if(!(expr)) abort()
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#define CHECK_IF(expr) if(!(expr)) abort()
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@interface Foo: Object
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@interface Foo: Object
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typedef struct { float x, y; } XXPoint;
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typedef struct { float x, y; } XXPoint;
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typedef struct { float width, height; } XXSize;
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typedef struct { float width, height; } XXSize;
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typedef struct _XXRect { XXPoint origin; XXSize size; } XXRect;
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typedef struct _XXRect { XXPoint origin; XXSize size; } XXRect;
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-(id)setRect:(XXRect)r withInt:(int)i;
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-(id)setRect:(XXRect)r withInt:(int)i;
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-(void) char:(signed char)c float:(float)f double:(double)d long:(long)l;
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-(void) char:(signed char)c float:(float)f double:(double)d long:(long)l;
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@end
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@end
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XXRect my_rect;
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XXRect my_rect;
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unsigned offs1, offs2, offs3, offs4, offs5, offs6, offs7;
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unsigned offs1, offs2, offs3, offs4, offs5, offs6, offs7;
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@implementation Foo
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@implementation Foo
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-(id)setRect:(XXRect)r withInt:(int)i {
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-(id)setRect:(XXRect)r withInt:(int)i {
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unsigned offs = sizeof(self);
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unsigned offs = sizeof(self);
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CHECK_IF(offs == offs3);
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CHECK_IF(offs == offs3);
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offs += sizeof(_cmd);
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offs += sizeof(_cmd);
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CHECK_IF(offs == offs4);
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CHECK_IF(offs == offs4);
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offs += sizeof(r);
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offs += sizeof(r);
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CHECK_IF(offs == offs5);
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CHECK_IF(offs == offs5);
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offs += sizeof(i);
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offs += sizeof(i);
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CHECK_IF(offs == offs1);
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CHECK_IF(offs == offs1);
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return nil;
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return nil;
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}
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}
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-(void) char:(signed char)c float:(float)f double:(double)d long:(long)l {
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-(void) char:(signed char)c float:(float)f double:(double)d long:(long)l {
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unsigned offs = sizeof(self);
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unsigned offs = sizeof(self);
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CHECK_IF(offs == offs3);
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CHECK_IF(offs == offs3);
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offs += sizeof(_cmd);
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offs += sizeof(_cmd);
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CHECK_IF(offs == offs4);
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CHECK_IF(offs == offs4);
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offs += sizeof((int)c);
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offs += sizeof((int)c);
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CHECK_IF(offs == offs5);
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CHECK_IF(offs == offs5);
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offs += sizeof(f);
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offs += sizeof(f);
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CHECK_IF(offs == offs6);
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CHECK_IF(offs == offs6);
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offs += sizeof(d);
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offs += sizeof(d);
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CHECK_IF(offs == offs7);
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CHECK_IF(offs == offs7);
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offs += sizeof(l);
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offs += sizeof(l);
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CHECK_IF(offs == offs1);
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CHECK_IF(offs == offs1);
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}
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}
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@end
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@end
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int main(void) {
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int main(void) {
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Foo *foo = [[Foo alloc] init];
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Foo *foo = [[Foo alloc] init];
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Class fooClass = OBJC_GETCLASS("Foo");
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Class fooClass = OBJC_GETCLASS("Foo");
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METHOD meth;
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METHOD meth;
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const char *string;
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const char *string;
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meth = CLASS_GETINSTANCEMETHOD(fooClass, @selector(setRect:withInt:));
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meth = CLASS_GETINSTANCEMETHOD(fooClass, @selector(setRect:withInt:));
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offs2 = 9999;
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offs2 = 9999;
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sscanf(meth->method_types, "@%u@%u:%u{_XXRect={?=ff}{?=ff}}%ui%u", &offs1, &offs2, &offs3,
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sscanf(meth->method_types, "@%u@%u:%u{_XXRect={?=ff}{?=ff}}%ui%u", &offs1, &offs2, &offs3,
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&offs4, &offs5);
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&offs4, &offs5);
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CHECK_IF(!offs2);
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CHECK_IF(!offs2);
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[foo setRect:my_rect withInt:123];
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[foo setRect:my_rect withInt:123];
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meth = CLASS_GETINSTANCEMETHOD(fooClass, @selector(char:float:double:long:));
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meth = CLASS_GETINSTANCEMETHOD(fooClass, @selector(char:float:double:long:));
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offs2 = 9999;
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offs2 = 9999;
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if (sizeof (long) == 8)
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if (sizeof (long) == 8)
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string = "v%u@%u:%uc%uf%ud%uq%u";
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string = "v%u@%u:%uc%uf%ud%uq%u";
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else
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else
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string = "v%u@%u:%uc%uf%ud%ul%u";
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string = "v%u@%u:%uc%uf%ud%ul%u";
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sscanf(meth->method_types, string, &offs1, &offs2, &offs3,
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sscanf(meth->method_types, string, &offs1, &offs2, &offs3,
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&offs4, &offs5, &offs6, &offs7);
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&offs4, &offs5, &offs6, &offs7);
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CHECK_IF(!offs2);
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CHECK_IF(!offs2);
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[foo char:'c' float:2.3 double:3.5 long:2345L];
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[foo char:'c' float:2.3 double:3.5 long:2345L];
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return 0;
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return 0;
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}
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}
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