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291 lines
8.8 KiB
C
291 lines
8.8 KiB
C
/* D language support routines for GDB, the GNU debugger.
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Copyright (C) 2005-2014 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "symtab.h"
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#include "language.h"
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#include "varobj.h"
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#include "d-lang.h"
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#include "c-lang.h"
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#include <string.h>
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#include "parser-defs.h"
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#include "gdb_obstack.h"
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#include <ctype.h>
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/* Extract identifiers from MANGLED_STR and append it to TEMPBUF.
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Return 1 on success or 0 on failure. */
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static int
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extract_identifiers (const char *mangled_str, struct obstack *tempbuf)
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{
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long i = 0;
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while (isdigit (*mangled_str))
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{
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char *end_ptr;
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i = strtol (mangled_str, &end_ptr, 10);
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mangled_str = end_ptr;
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if (i <= 0 || strlen (mangled_str) < i)
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return 0;
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obstack_grow (tempbuf, mangled_str, i);
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mangled_str += i;
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obstack_grow_str (tempbuf, ".");
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}
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if (*mangled_str == '\0' || i == 0)
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return 0;
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obstack_blank (tempbuf, -1);
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return 1;
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}
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/* Extract and demangle type from MANGLED_STR and append it to TEMPBUF.
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Return 1 on success or 0 on failure. */
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static int
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extract_type_info (const char *mangled_str, struct obstack *tempbuf)
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{
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if (*mangled_str == '\0')
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return 0;
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switch (*mangled_str++)
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{
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case 'A': /* dynamic array */
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case 'G': /* static array */
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case 'H': /* associative array */
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if (!extract_type_info (mangled_str, tempbuf))
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return 0;
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obstack_grow_str (tempbuf, "[]");
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return 1;
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case 'P': /* pointer */
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if (!extract_type_info (mangled_str, tempbuf))
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return 0;
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obstack_grow_str (tempbuf, "*");
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return 1;
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case 'R': /* reference */
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if (!extract_type_info (mangled_str, tempbuf))
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return 0;
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obstack_grow_str (tempbuf, "&");
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return 1;
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case 'Z': /* return value */
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return extract_type_info (mangled_str, tempbuf);
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case 'J': /* out */
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obstack_grow_str (tempbuf, "out ");
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return extract_type_info (mangled_str, tempbuf);
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case 'K': /* inout */
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obstack_grow_str (tempbuf, "inout ");
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return extract_type_info (mangled_str, tempbuf);
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case 'E': /* enum */
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case 'T': /* typedef */
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case 'D': /* delegate */
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case 'C': /* class */
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case 'S': /* struct */
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return extract_identifiers (mangled_str, tempbuf);
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/* basic types: */
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case 'n': obstack_grow_str (tempbuf, "none"); return 1;
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case 'v': obstack_grow_str (tempbuf, "void"); return 1;
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case 'g': obstack_grow_str (tempbuf, "byte"); return 1;
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case 'h': obstack_grow_str (tempbuf, "ubyte"); return 1;
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case 's': obstack_grow_str (tempbuf, "short"); return 1;
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case 't': obstack_grow_str (tempbuf, "ushort"); return 1;
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case 'i': obstack_grow_str (tempbuf, "int"); return 1;
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case 'k': obstack_grow_str (tempbuf, "uint"); return 1;
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case 'l': obstack_grow_str (tempbuf, "long"); return 1;
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case 'm': obstack_grow_str (tempbuf, "ulong"); return 1;
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case 'f': obstack_grow_str (tempbuf, "float"); return 1;
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case 'd': obstack_grow_str (tempbuf, "double"); return 1;
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case 'e': obstack_grow_str (tempbuf, "real"); return 1;
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/* imaginary and complex: */
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case 'o': obstack_grow_str (tempbuf, "ifloat"); return 1;
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case 'p': obstack_grow_str (tempbuf, "idouble"); return 1;
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case 'j': obstack_grow_str (tempbuf, "ireal"); return 1;
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case 'q': obstack_grow_str (tempbuf, "cfloat"); return 1;
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case 'r': obstack_grow_str (tempbuf, "cdouble"); return 1;
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case 'c': obstack_grow_str (tempbuf, "creal"); return 1;
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/* other types: */
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case 'b': obstack_grow_str (tempbuf, "bit"); return 1;
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case 'a': obstack_grow_str (tempbuf, "char"); return 1;
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case 'u': obstack_grow_str (tempbuf, "wchar"); return 1;
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case 'w': obstack_grow_str (tempbuf, "dchar"); return 1;
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default:
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obstack_grow_str (tempbuf, "unknown");
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return 1;
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}
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}
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/* Implements the la_demangle language_defn routine for language D. */
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char *
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d_demangle (const char *symbol, int options)
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{
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struct obstack tempbuf;
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char *out_str;
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unsigned char is_func = 0;
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if (symbol == NULL)
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return NULL;
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else if (strcmp (symbol, "_Dmain") == 0)
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return xstrdup ("D main");
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obstack_init (&tempbuf);
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if (symbol[0] == '_' && symbol[1] == 'D')
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{
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symbol += 2;
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is_func = 1;
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}
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else if (strncmp (symbol, "__Class_", 8) == 0)
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symbol += 8;
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else if (strncmp (symbol, "__init_", 7) == 0)
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symbol += 7;
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else if (strncmp (symbol, "__vtbl_", 7) == 0)
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symbol += 7;
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else if (strncmp (symbol, "__modctor_", 10) == 0)
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symbol += 10;
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else if (strncmp (symbol, "__moddtor_", 10) == 0)
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symbol += 10;
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else if (strncmp (symbol, "__ModuleInfo_", 13) == 0)
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symbol += 13;
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else
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{
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obstack_free (&tempbuf, NULL);
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return NULL;
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}
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if (!extract_identifiers (symbol, &tempbuf))
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{
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obstack_free (&tempbuf, NULL);
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return NULL;
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}
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obstack_grow_str (&tempbuf, "(");
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if (is_func == 1 && *symbol == 'F')
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{
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symbol++;
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while (*symbol != '\0' && *symbol != 'Z')
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{
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if (is_func == 1)
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is_func++;
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else
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obstack_grow_str (&tempbuf, ", ");
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if (!extract_type_info (symbol, &tempbuf))
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{
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obstack_free (&tempbuf, NULL);
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return NULL;
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}
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}
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}
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obstack_grow_str0 (&tempbuf, ")");
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/* Doesn't display the return type, but wouldn't be too hard to do. */
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out_str = xstrdup (obstack_finish (&tempbuf));
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obstack_free (&tempbuf, NULL);
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return out_str;
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}
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/* Table mapping opcodes into strings for printing operators
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and precedences of the operators. */
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static const struct op_print d_op_print_tab[] =
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{
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{",", BINOP_COMMA, PREC_COMMA, 0},
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{"=", BINOP_ASSIGN, PREC_ASSIGN, 1},
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{"||", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0},
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{"&&", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0},
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{"|", BINOP_BITWISE_IOR, PREC_BITWISE_IOR, 0},
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{"^", BINOP_BITWISE_XOR, PREC_BITWISE_XOR, 0},
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{"&", BINOP_BITWISE_AND, PREC_BITWISE_AND, 0},
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{"==", BINOP_EQUAL, PREC_EQUAL, 0},
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{"!=", BINOP_NOTEQUAL, PREC_EQUAL, 0},
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{"<=", BINOP_LEQ, PREC_ORDER, 0},
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{">=", BINOP_GEQ, PREC_ORDER, 0},
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{">", BINOP_GTR, PREC_ORDER, 0},
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{"<", BINOP_LESS, PREC_ORDER, 0},
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{">>", BINOP_RSH, PREC_SHIFT, 0},
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{"<<", BINOP_LSH, PREC_SHIFT, 0},
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{"+", BINOP_ADD, PREC_ADD, 0},
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{"-", BINOP_SUB, PREC_ADD, 0},
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{"*", BINOP_MUL, PREC_MUL, 0},
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{"/", BINOP_DIV, PREC_MUL, 0},
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{"%", BINOP_REM, PREC_MUL, 0},
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{"@", BINOP_REPEAT, PREC_REPEAT, 0},
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{"-", UNOP_NEG, PREC_PREFIX, 0},
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{"!", UNOP_LOGICAL_NOT, PREC_PREFIX, 0},
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{"~", UNOP_COMPLEMENT, PREC_PREFIX, 0},
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{"*", UNOP_IND, PREC_PREFIX, 0},
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{"&", UNOP_ADDR, PREC_PREFIX, 0},
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{"sizeof ", UNOP_SIZEOF, PREC_PREFIX, 0},
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{"++", UNOP_PREINCREMENT, PREC_PREFIX, 0},
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{"--", UNOP_PREDECREMENT, PREC_PREFIX, 0},
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{NULL, 0, 0, 0}
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};
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static const struct language_defn d_language_defn =
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{
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"d",
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"D",
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language_d,
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range_check_off,
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case_sensitive_on,
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array_row_major,
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macro_expansion_c,
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&exp_descriptor_c,
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c_parse,
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c_error,
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null_post_parser,
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c_printchar, /* Print a character constant. */
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c_printstr, /* Function to print string constant. */
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c_emit_char, /* Print a single char. */
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c_print_type, /* Print a type using appropriate syntax. */
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c_print_typedef, /* Print a typedef using appropriate
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syntax. */
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d_val_print, /* Print a value using appropriate syntax. */
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c_value_print, /* Print a top-level value. */
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default_read_var_value, /* la_read_var_value */
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NULL, /* Language specific skip_trampoline. */
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"this",
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basic_lookup_symbol_nonlocal,
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basic_lookup_transparent_type,
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d_demangle, /* Language specific symbol demangler. */
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NULL, /* Language specific
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class_name_from_physname. */
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d_op_print_tab, /* Expression operators for printing. */
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1, /* C-style arrays. */
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0, /* String lower bound. */
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default_word_break_characters,
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default_make_symbol_completion_list,
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c_language_arch_info,
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default_print_array_index,
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default_pass_by_reference,
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c_get_string,
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NULL, /* la_get_symbol_name_cmp */
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iterate_over_symbols,
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&default_varobj_ops,
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LANG_MAGIC
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};
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/* Provide a prototype to silence -Wmissing-prototypes. */
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extern initialize_file_ftype _initialize_d_language;
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void
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_initialize_d_language (void)
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{
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add_language (&d_language_defn);
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}
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