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/* Method encoding tests for stand-alone @protocol declarations.  */

/* Contributed by Ziemowit Laski <zlaski@apple.com>.  */

/* { dg-do run } */

/* { dg-xfail-run-if "Needs OBJC2 ABI" { *-*-darwin* && { lp64 && { ! objc2 } } } { "-fnext-runtime" } { "" } } */

#include <stdio.h>

#include <stdlib.h>

#include "../objc-obj-c++-shared/runtime.h"

#ifdef __cplusplus

#define ProtoBool bool

#else

#define ProtoBool _Bool

#endif

extern int sscanf(const char *str, const char *format, ...);

extern void abort(void);

#define CHECK_IF(expr) if(!(expr)) abort()

enum Enum {

  zero, one, two, three

};

typedef enum Enum Enum;

typedef signed char ObjCBool; /* as used by the NeXT runtime */

@protocol Proto

union __XXAngle { unsigned int alpha, beta; };

typedef struct { float x, y; union __XXAngle a; } XXPoint;

typedef struct { double width, height; } XXSize;

typedef struct _XXRect { XXPoint origin; XXSize size; struct _XXRect *next; } XXRect;

- (void) char:(signed char)c float:(float)f double:(double)d unsigned:(unsigned)u short:(short)s long:(long)l;

- (void *)setRect:(XXRect)r withBool:(ProtoBool)b withInt:(int)i;

+ (Enum *)getEnum:(XXPoint *)pt enum:(enum Enum)e bool:(ObjCBool)b;

+ (ProtoBool **)getBool:(ObjCBool **)b;

@end

Protocol *proto;

struct objc_method_description *meth;

struct objc_method_description meth_object;

unsigned totsize, offs0, offs1, offs2, offs3, offs4, offs5, offs6, offs7;

static void scan_initial(const char *pattern) {

  totsize = offs0 = offs1 = offs2 = offs3 = offs4 = offs5 = offs6 = offs7 = (unsigned)-1;

  sscanf(meth->types, pattern, &totsize, &offs0, &offs1, &offs2, &offs3,

         &offs4, &offs5, &offs6, &offs7);

  CHECK_IF(!offs0 && offs1 == sizeof(id) && offs2 == offs1 + sizeof(SEL) && totsize >= offs2);

}

int main(void) {

  const char *string;

  proto = @protocol(Proto);

  meth_object = protocol_getMethodDescription (proto,

                   @selector(char:float:double:unsigned:short:long:), YES, YES);

  meth = &meth_object;

  if (sizeof (long) == 8)

    string = "v%u@%u:%uc%uf%ud%uI%us%uq%u";

  else

    string = "v%u@%u:%uc%uf%ud%uI%us%ul%u";

  scan_initial(string);

  CHECK_IF(offs3 == offs2 + sizeof(int) && offs4 == offs3 + sizeof(float));

  CHECK_IF(offs5 == offs4 + sizeof(double) && offs6 == offs5 + sizeof(unsigned));

  CHECK_IF(offs7 == offs6 + sizeof(int) && totsize == offs7 + sizeof(long));

  meth_object = protocol_getMethodDescription (proto,

                  @selector(setRect:withBool:withInt:), YES, YES);

  meth = &meth_object;

  scan_initial("^v%u@%u:%u{_XXRect={?=ff(__XXAngle=II)}{?=dd}^{_XXRect}}%uB%ui%u");

  CHECK_IF(offs3 == offs2 + sizeof(XXRect) && offs4 == offs3 + sizeof(int));

  CHECK_IF(totsize == offs4 + sizeof(int));

  meth_object = protocol_getMethodDescription (proto,

                  @selector(getEnum:enum:bool:), YES, NO);

  meth = &meth_object;

  /* Here we have the complication that 'enum Enum' could be encoded

     as 'i' on __NEXT_RUNTIME_, and (most likely) as 'I' on the GNU

     runtime.  So we get the @encode(enum Enum), then put it into the

     string in place of the traditional 'i'.

  */

  /* scan_initial("^i%u@%u:%u^{?=ff(__XXAngle=II)}%ui%uc%u"); */

  {

    char pattern[1024];

    sprintf (pattern, "^%s%%u@%%u:%%u^{?=ff(__XXAngle=II)}%%u%s%%uc%%u",

             @encode(enum Enum), @encode(enum Enum));

    scan_initial(pattern);

  }

  CHECK_IF(offs3 == offs2 + sizeof(XXPoint *) && offs4 == offs3 + sizeof(enum Enum));

  CHECK_IF(totsize == offs4 + sizeof(int));  /* 'ObjCBool' is really 'char' */

  meth_object = protocol_getMethodDescription (proto,

                  @selector(getBool:), YES, NO);

  meth = &meth_object;

  scan_initial("^^B%u@%u:%u^*%u");

  CHECK_IF(totsize == offs2 + sizeof(ObjCBool **));

  return 0;

}