libobjc/objc/encoding.h

   1 /* Encoding of types for Objective C.
   2    Copyright (C) 1993, 1997 Free Software Foundation, Inc.
   3
   4 Author: Kresten Krab Thorup
   5
   6 This file is part of GNU CC.
   7
   8 GNU CC is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 2, or (at your option)
  11 any later version.
  12
  13 GNU CC is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GNU CC; see the file COPYING.  If not, write to
  20 the Free Software Foundation, 59 Temple Place - Suite 330,
  21 Boston, MA 02111-1307, USA.  */
  22
  23 /* As a special exception, if you link this library with files
  24    compiled with GCC to produce an executable, this does not cause
  25    the resulting executable to be covered by the GNU General Public License.
  26    This exception does not however invalidate any other reasons why
  27    the executable file might be covered by the GNU General Public License.  */
  28
  29 #ifndef __encoding_INCLUDE_GNU
  30 #define __encoding_INCLUDE_GNU
  31
  32 #include <ctype.h>
  33 #include "objc/objc-api.h"
  34
  35 #define _C_CONST        'r'
  36 #define _C_IN           'n'
  37 #define _C_INOUT        'N'
  38 #define _C_OUT          'o'
  39 #define _C_BYCOPY       'O'
  40 #define _C_BYREF        'R'
  41 #define _C_ONEWAY       'V'
  42 #define _C_GCINVISIBLE  '!'
  43
  44 #define _F_CONST        0x01
  45 #define _F_IN           0x01
  46 #define _F_OUT          0x02
  47 #define _F_INOUT        0x03
  48 #define _F_BYCOPY       0x04
  49 #define _F_BYREF        0x08
  50 #define _F_ONEWAY       0x10
  51 #define _F_GCINVISIBLE  0x20
  52
  53 int objc_aligned_size (const char* type);
  54 int objc_sizeof_type (const char* type);
  55 int objc_alignof_type (const char* type);
  56 int objc_aligned_size (const char* type);
  57 int objc_promoted_size (const char* type);
  58
  59 const char* objc_skip_type_qualifiers (const char* type);
  60 const char* objc_skip_typespec (const char* type);
  61 const char* objc_skip_offset (const char* type);
  62 const char* objc_skip_argspec (const char* type);
  63 int method_get_number_of_arguments (struct objc_method*);
  64 int method_get_sizeof_arguments (struct objc_method*);
  65
  66 char* method_get_first_argument (struct objc_method*,
  67                                  arglist_t argframe,
  68                                  const char** type);
  69 char* method_get_next_argument (arglist_t argframe,
  70                                 const char **type);
  71 char* method_get_nth_argument (struct objc_method* m,
  72                                arglist_t argframe,
  73                                int arg,
  74                                const char **type);
  75
  76 unsigned objc_get_type_qualifiers (const char* type);
  77
  78
  79 struct objc_struct_layout
  80 {
  81   const char *original_type;
  82   const char *type;
  83   const char *prev_type;
  84   unsigned int record_size;
  85   unsigned int record_align;
  86 };
  87
  88 void objc_layout_structure (const char *type,
  89                             struct objc_struct_layout *layout);
  90 BOOL  objc_layout_structure_next_member (struct objc_struct_layout *layout);
  91 void objc_layout_finish_structure (struct objc_struct_layout *layout,
  92                                    unsigned int *size,
  93                                    unsigned int *align);
  94 void objc_layout_structure_get_info (struct objc_struct_layout *layout,
  95                                      unsigned int *offset,
  96                                      unsigned int *align,
  97                                      const char **type);
  98
  99 #endif /* __encoding_INCLUDE_GNU */