gcc/testsuite/obj-c++.dg/encode-5.mm

   1 /* Method encoding tests for stand-alone @protocol declarations.  */
   2 /* Contributed by Ziemowit Laski <zlaski@apple.com>.  */
   3 /* { dg-do run } */
   4 /* { dg-xfail-run-if "Needs OBJC2 ABI" { *-*-darwin* && { lp64 && { ! objc2 } } } { "-fnext-runtime" } { "" } } */
   5
   6 #include <stdio.h>
   7 #include <stdlib.h>
   8
   9 #include "../objc-obj-c++-shared/runtime.h"
  10 #include <objc/Protocol.h>
  11
  12 #ifdef __cplusplus
  13 #define ProtoBool bool
  14 #else
  15 #define ProtoBool _Bool
  16 #endif
  17
  18 #define CHECK_IF(expr) if(!(expr)) abort()
  19
  20 enum Enum {
  21   zero, one, two, three
  22 };
  23 typedef enum Enum Enum;
  24 typedef signed char ObjCBool; /* as used by the NeXT runtime */
  25
  26 @protocol Proto
  27 union __XXAngle { unsigned int alpha, beta; };
  28 typedef struct { float x, y; union __XXAngle a; } XXPoint;
  29 typedef struct { double width, height; } XXSize;
  30 typedef struct _XXRect { XXPoint origin; XXSize size; struct _XXRect *next; } XXRect;
  31 - (void) char:(signed char)c float:(float)f double:(double)d unsigned:(unsigned)u short:(short)s long:(long)l;
  32 - (void *)setRect:(XXRect)r withBool:(ProtoBool)b withInt:(int)i;
  33 + (Enum *)getEnum:(XXPoint *)pt enum:(enum Enum)e bool:(ObjCBool)b;
  34 + (ProtoBool **)getBool:(ObjCBool **)b;
  35 @end
  36
  37 Protocol *proto = @protocol(Proto);
  38 struct objc_method_description *meth;
  39 struct objc_method_description meth_object;
  40 unsigned totsize, offs0, offs1, offs2, offs3, offs4, offs5, offs6, offs7;
  41
  42 static void scan_initial(const char *pattern) {
  43   totsize = offs0 = offs1 = offs2 = offs3 = offs4 = offs5 = offs6 = offs7 = (unsigned)-1;
  44   sscanf(meth->types, pattern, &totsize, &offs0, &offs1, &offs2, &offs3,
  45       &offs4, &offs5, &offs6, &offs7);
  46   CHECK_IF(!offs0 && offs1 == sizeof(id) && offs2 == offs1 + sizeof(SEL) && totsize >= offs2);
  47 }
  48
  49 int main(void) {
  50   const char *string;
  51
  52   meth_object = protocol_getMethodDescription (proto,
  53                    @selector(char:float:double:unsigned:short:long:), YES, YES);
  54   meth = &meth_object;
  55   if (sizeof (long) == 8)
  56     string = "v%u@%u:%uc%uf%ud%uI%us%uq%u";
  57   else
  58     string = "v%u@%u:%uc%uf%ud%uI%us%ul%u";
  59   scan_initial(string);
  60   CHECK_IF(offs3 == offs2 + sizeof(int) && offs4 == offs3 + sizeof(float));
  61   CHECK_IF(offs5 == offs4 + sizeof(double) && offs6 == offs5 + sizeof(unsigned));
  62   CHECK_IF(offs7 == offs6 + sizeof(int) && totsize == offs7 + sizeof(long));
  63   meth_object = protocol_getMethodDescription (proto,
  64                   @selector(setRect:withBool:withInt:), YES, YES);
  65   meth = &meth_object;
  66   scan_initial("^v%u@%u:%u{_XXRect={?=ff(__XXAngle=II)}{?=dd}^{_XXRect}}%uB%ui%u");
  67   CHECK_IF(offs3 == offs2 + sizeof(XXRect) && offs4 == offs3 + sizeof(int));
  68   CHECK_IF(totsize == offs4 + sizeof(int));
  69   meth_object = protocol_getMethodDescription (proto,
  70                   @selector(getEnum:enum:bool:), YES, NO);
  71   meth = &meth_object;
  72
  73   /* Here we have the complication that 'enum Enum' could be encoded
  74      as 'i' on __NEXT_RUNTIME_, and (most likely) as 'I' on the GNU
  75      runtime.  So we get the @encode(enum Enum), then put it into the
  76      string in place of the traditional 'i'.
  77   */
  78   /* scan_initial("^i%u@%u:%u^{?=ff(__XXAngle=II)}%ui%uc%u"); */
  79   {
  80     char pattern[1024];
  81
  82     sprintf (pattern, "^%s%%u@%%u:%%u^{?=ff(__XXAngle=II)}%%u%s%%uc%%u",
  83              @encode(enum Enum), @encode(enum Enum));
  84     scan_initial(pattern);
  85   }
  86
  87   CHECK_IF(offs3 == offs2 + sizeof(XXPoint *) && offs4 == offs3 + sizeof(enum Enum));
  88   CHECK_IF(totsize == offs4 + sizeof(int));  /* 'ObjCBool' is really 'char' */
  89   meth_object = protocol_getMethodDescription (proto,
  90                   @selector(getBool:), YES, NO);
  91   meth = &meth_object;
  92   scan_initial("^^B%u@%u:%u^*%u");
  93   CHECK_IF(totsize == offs2 + sizeof(ObjCBool **));
  94   return 0;
  95 }
  96