aboutsummaryrefslogtreecommitdiff
path: root/gdb/d-lang.c
blob: fb6bacd30864fd7d432c600d66f7b3fc0172db50 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
/* D language support routines for GDB, the GNU debugger.

   Copyright (C) 2005, 2006, 2008, 2009, 2010, 2011
   Free Software Foundation, Inc.

   This file is part of GDB.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

#include "defs.h"
#include "symtab.h"
#include "language.h"
#include "d-lang.h"
#include "c-lang.h"
#include "gdb_string.h"
#include "parser-defs.h"
#include "gdb_obstack.h"

#include <ctype.h>

/* Extract identifiers from MANGLED_STR and append it to TEMPBUF.
   Return 1 on success or 0 on failure.  */
static int
extract_identifiers (const char *mangled_str, struct obstack *tempbuf)
{
  long i = 0;

  while (isdigit (*mangled_str))
    {
      char *end_ptr;

      i = strtol (mangled_str, &end_ptr, 10);
      mangled_str = end_ptr;
      if (i <= 0 || strlen (mangled_str) < i)
        return 0;
      obstack_grow (tempbuf, mangled_str, i);
      mangled_str += i;
      obstack_grow_str (tempbuf, ".");
    }
  if (*mangled_str == '\0' || i == 0)
    return 0;
  obstack_blank (tempbuf, -1);
  return 1;
}

/* Extract and demangle type from MANGLED_STR and append it to TEMPBUF.
   Return 1 on success or 0 on failure.  */
static int
extract_type_info (const char *mangled_str, struct obstack *tempbuf)
{
  if (*mangled_str == '\0')
    return 0;
  switch (*mangled_str++)
    {
      case 'A': /* dynamic array */
      case 'G': /* static array */
      case 'H': /* associative array */
	if (!extract_type_info (mangled_str, tempbuf))
	  return 0;
	obstack_grow_str (tempbuf, "[]");
	return 1;
      case 'P': /* pointer */
	if (!extract_type_info (mangled_str, tempbuf))
	  return 0;
	obstack_grow_str (tempbuf, "*");
	return 1;
      case 'R': /* reference */
	if (!extract_type_info (mangled_str, tempbuf))
	  return 0;
	obstack_grow_str (tempbuf, "&");
	return 1;
      case 'Z': /* return value */
	return extract_type_info (mangled_str, tempbuf);
      case 'J': /* out */
	obstack_grow_str (tempbuf, "out ");
	return extract_type_info (mangled_str, tempbuf);
      case 'K': /* inout */
	obstack_grow_str (tempbuf, "inout ");
	return extract_type_info (mangled_str, tempbuf);
      case 'E': /* enum */
      case 'T': /* typedef */
      case 'D': /* delegate */
      case 'C': /* class */
      case 'S': /* struct */
	return extract_identifiers (mangled_str, tempbuf);

      /* basic types: */
      case 'n': obstack_grow_str (tempbuf, "none"); return 1;
      case 'v': obstack_grow_str (tempbuf, "void"); return 1;
      case 'g': obstack_grow_str (tempbuf, "byte"); return 1;
      case 'h': obstack_grow_str (tempbuf, "ubyte"); return 1;
      case 's': obstack_grow_str (tempbuf, "short"); return 1;
      case 't': obstack_grow_str (tempbuf, "ushort"); return 1;
      case 'i': obstack_grow_str (tempbuf, "int"); return 1;
      case 'k': obstack_grow_str (tempbuf, "uint"); return 1;
      case 'l': obstack_grow_str (tempbuf, "long"); return 1;
      case 'm': obstack_grow_str (tempbuf, "ulong"); return 1;
      case 'f': obstack_grow_str (tempbuf, "float"); return 1;
      case 'd': obstack_grow_str (tempbuf, "double"); return 1;
      case 'e': obstack_grow_str (tempbuf, "real"); return 1;

      /* imaginary and complex: */
      case 'o': obstack_grow_str (tempbuf, "ifloat"); return 1;
      case 'p': obstack_grow_str (tempbuf, "idouble"); return 1;
      case 'j': obstack_grow_str (tempbuf, "ireal"); return 1;
      case 'q': obstack_grow_str (tempbuf, "cfloat"); return 1;
      case 'r': obstack_grow_str (tempbuf, "cdouble"); return 1;
      case 'c': obstack_grow_str (tempbuf, "creal"); return 1;

      /* other types: */
      case 'b': obstack_grow_str (tempbuf, "bit"); return 1;
      case 'a': obstack_grow_str (tempbuf, "char"); return 1;
      case 'u': obstack_grow_str (tempbuf, "wchar"); return 1;
      case 'w': obstack_grow_str (tempbuf, "dchar"); return 1;

      default:
	obstack_grow_str (tempbuf, "unknown");
	return 1;
    }
}

/* Implements the la_demangle language_defn routine for language D.  */
char *
d_demangle (const char *symbol, int options)
{
  struct obstack tempbuf;
  char *out_str;
  unsigned char is_func = 0;

  if (symbol == NULL)
    return NULL;
  else if (strcmp (symbol, "_Dmain") == 0)
    return xstrdup ("D main");

  obstack_init (&tempbuf);
  
  if (symbol[0] == '_' && symbol[1] == 'D')
    {
      symbol += 2;
      is_func = 1;
    }
  else if (strncmp (symbol, "__Class_", 8) == 0)
    symbol += 8;
  else if (strncmp (symbol, "__init_", 7) == 0)
    symbol += 7;
  else if (strncmp (symbol, "__vtbl_", 7) == 0)
    symbol += 7;
  else if (strncmp (symbol, "__modctor_", 10) == 0)
    symbol += 10;
  else if (strncmp (symbol, "__moddtor_", 10) == 0)
    symbol += 10;
  else if (strncmp (symbol, "__ModuleInfo_", 13) == 0)
    symbol += 13;
  else
    {
      obstack_free (&tempbuf, NULL);
      return NULL;
    }
  
  if (!extract_identifiers (symbol, &tempbuf))
    {
      obstack_free (&tempbuf, NULL);
      return NULL;
    }

  obstack_grow_str (&tempbuf, "(");
  if (is_func == 1 && *symbol == 'F')
    {
      symbol++;
      while (*symbol != '\0' && *symbol != 'Z')
	{
	  if (is_func == 1)
	    is_func++;
	  else
	    obstack_grow_str (&tempbuf, ", ");
	  if (!extract_type_info (symbol, &tempbuf))
	    {
	      obstack_free (&tempbuf, NULL);
	      return NULL;
	   }
	}
     }
  obstack_grow_str0 (&tempbuf, ")");

  /* Doesn't display the return type, but wouldn't be too hard to do.  */

  out_str = xstrdup (obstack_finish (&tempbuf));
  obstack_free (&tempbuf, NULL);
  return out_str;
}

/* Table mapping opcodes into strings for printing operators
   and precedences of the operators.  */
static const struct op_print d_op_print_tab[] =
{
  {",", BINOP_COMMA, PREC_COMMA, 0},
  {"=", BINOP_ASSIGN, PREC_ASSIGN, 1},
  {"||", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0},
  {"&&", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0},
  {"|", BINOP_BITWISE_IOR, PREC_BITWISE_IOR, 0},
  {"^", BINOP_BITWISE_XOR, PREC_BITWISE_XOR, 0},
  {"&", BINOP_BITWISE_AND, PREC_BITWISE_AND, 0},
  {"==", BINOP_EQUAL, PREC_EQUAL, 0},
  {"!=", BINOP_NOTEQUAL, PREC_EQUAL, 0},
  {"<=", BINOP_LEQ, PREC_ORDER, 0},
  {">=", BINOP_GEQ, PREC_ORDER, 0},
  {">", BINOP_GTR, PREC_ORDER, 0},
  {"<", BINOP_LESS, PREC_ORDER, 0},
  {">>", BINOP_RSH, PREC_SHIFT, 0},
  {"<<", BINOP_LSH, PREC_SHIFT, 0},
  {"+", BINOP_ADD, PREC_ADD, 0},
  {"-", BINOP_SUB, PREC_ADD, 0},
  {"*", BINOP_MUL, PREC_MUL, 0},
  {"/", BINOP_DIV, PREC_MUL, 0},
  {"%", BINOP_REM, PREC_MUL, 0},
  {"@", BINOP_REPEAT, PREC_REPEAT, 0},
  {"-", UNOP_NEG, PREC_PREFIX, 0},
  {"!", UNOP_LOGICAL_NOT, PREC_PREFIX, 0},
  {"~", UNOP_COMPLEMENT, PREC_PREFIX, 0},
  {"*", UNOP_IND, PREC_PREFIX, 0},
  {"&", UNOP_ADDR, PREC_PREFIX, 0},
  {"sizeof ", UNOP_SIZEOF, PREC_PREFIX, 0},
  {"++", UNOP_PREINCREMENT, PREC_PREFIX, 0},
  {"--", UNOP_PREDECREMENT, PREC_PREFIX, 0},
  {NULL, 0, 0, 0}
};

static const struct language_defn d_language_defn =
{
  "d",
  language_d,
  range_check_off,
  type_check_off,
  case_sensitive_on,
  array_row_major,
  macro_expansion_c,
  &exp_descriptor_c,
  c_parse,
  c_error,
  null_post_parser,
  c_printchar,			/* Print a character constant.  */
  c_printstr,			/* Function to print string constant.  */
  c_emit_char,			/* Print a single char.  */
  c_print_type,			/* Print a type using appropriate syntax.  */
  c_print_typedef,		/* Print a typedef using appropriate
				   syntax.  */
  d_val_print,			/* Print a value using appropriate syntax.  */
  c_value_print,		/* Print a top-level value.  */
  NULL,				/* Language specific skip_trampoline.  */
  "this",
  basic_lookup_symbol_nonlocal, 
  basic_lookup_transparent_type,
  d_demangle,			/* Language specific symbol demangler.  */
  NULL,				/* Language specific
				   class_name_from_physname.  */
  d_op_print_tab,		/* Expression operators for printing.  */
  1,				/* C-style arrays.  */
  0,				/* String lower bound.  */
  default_word_break_characters,
  default_make_symbol_completion_list,
  c_language_arch_info,
  default_print_array_index,
  default_pass_by_reference,
  c_get_string,
  strcmp_iw_ordered,
  NULL,
  LANG_MAGIC
};

void
_initialize_d_language (void)
{
  add_language (&d_language_defn);
}