gdb/expprint.c

   1 /* Print in infix form a struct expression.
   2
   3    Copyright (C) 1986-2021 Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #include "defs.h"
  21 #include "symtab.h"
  22 #include "gdbtypes.h"
  23 #include "expression.h"
  24 #include "value.h"
  25 #include "language.h"
  26 #include "parser-defs.h"
  27 #include "user-regs.h"          /* For user_reg_map_regnum_to_name.  */
  28 #include "target.h"
  29 #include "block.h"
  30 #include "objfiles.h"
  31 #include "valprint.h"
  32 #include "cli/cli-style.h"
  33 #include "c-lang.h"
  34 #include "expop.h"
  35 #include "ada-exp.h"
  36
  37 #include <ctype.h>
  38
  39 /* Default name for the standard operator OPCODE (i.e., one defined in
  40    the definition of enum exp_opcode).  */
  41
  42 const char *
  43 op_name (enum exp_opcode opcode)
  44 {
  45   switch (opcode)
  46     {
  47     default:
  48       {
  49         static char buf[30];
  50
  51         xsnprintf (buf, sizeof (buf), "<unknown %d>", opcode);
  52         return buf;
  53       }
  54 #define OP(name)        \
  55     case name:          \
  56       return #name ;
  57 #include "std-operator.def"
  58 #undef OP
  59     }
  60 }
  61
  62 void
  63 dump_prefix_expression (struct expression *exp, struct ui_file *stream)
  64 {
  65   exp->op->dump (stream, 0);
  66 }
  67
  68 namespace expr
  69 {
  70
  71 void
  72 dump_for_expression (struct ui_file *stream, int depth, enum exp_opcode op)
  73 {
  74   fprintf_filtered (stream, _("%*sOperation: %s\n"), depth, "", op_name (op));
  75 }
  76
  77 void
  78 dump_for_expression (struct ui_file *stream, int depth, const std::string &str)
  79 {
  80   fprintf_filtered (stream, _("%*sString: %s\n"), depth, "", str.c_str ());
  81 }
  82
  83 void
  84 dump_for_expression (struct ui_file *stream, int depth, struct type *type)
  85 {
  86   fprintf_filtered (stream, _("%*sType: "), depth, "");
  87   type_print (type, nullptr, stream, 0);
  88   fprintf_filtered (stream, "\n");
  89 }
  90
  91 void
  92 dump_for_expression (struct ui_file *stream, int depth, CORE_ADDR addr)
  93 {
  94   fprintf_filtered (stream, _("%*sConstant: %s\n"), depth, "",
  95                      core_addr_to_string (addr));
  96 }
  97
  98 void
  99 dump_for_expression (struct ui_file *stream, int depth, internalvar *ivar)
 100 {
 101   fprintf_filtered (stream, _("%*sInternalvar: $%s\n"), depth, "",
 102                      internalvar_name (ivar));
 103 }
 104
 105 void
 106 dump_for_expression (struct ui_file *stream, int depth, symbol *sym)
 107 {
 108   fprintf_filtered (stream, _("%*sSymbol: %s\n"), depth, "",
 109                      sym->print_name ());
 110 }
 111
 112 void
 113 dump_for_expression (struct ui_file *stream, int depth, minimal_symbol *msym)
 114 {
 115   fprintf_filtered (stream, _("%*sMinsym: %s\n"), depth, "",
 116                      msym->print_name ());
 117 }
 118
 119 void
 120 dump_for_expression (struct ui_file *stream, int depth, const block *bl)
 121 {
 122   fprintf_filtered (stream, _("%*sBlock: %p\n"), depth, "", bl);
 123 }
 124
 125 void
 126 dump_for_expression (struct ui_file *stream, int depth,
 127                      type_instance_flags flags)
 128 {
 129   fprintf_filtered (stream, _("%*sType flags: "), depth, "");
 130   if (flags & TYPE_INSTANCE_FLAG_CONST)
 131     fputs_unfiltered ("const ", stream);
 132   if (flags & TYPE_INSTANCE_FLAG_VOLATILE)
 133     fputs_unfiltered ("volatile", stream);
 134   fprintf_filtered (stream, "\n");
 135 }
 136
 137 void
 138 dump_for_expression (struct ui_file *stream, int depth,
 139                      enum c_string_type_values flags)
 140 {
 141   fprintf_filtered (stream, _("%*sC string flags: "), depth, "");
 142   switch (flags & ~C_CHAR)
 143     {
 144     case C_WIDE_STRING:
 145       fputs_unfiltered (_("wide "), stream);
 146       break;
 147     case C_STRING_16:
 148       fputs_unfiltered (_("u16 "), stream);
 149       break;
 150     case C_STRING_32:
 151       fputs_unfiltered (_("u32 "), stream);
 152       break;
 153     default:
 154       fputs_unfiltered (_("ordinary "), stream);
 155       break;
 156     }
 157
 158   if ((flags & C_CHAR) != 0)
 159     fputs_unfiltered (_("char"), stream);
 160   else
 161     fputs_unfiltered (_("string"), stream);
 162   fputs_unfiltered ("\n", stream);
 163 }
 164
 165 void
 166 dump_for_expression (struct ui_file *stream, int depth, objfile *objf)
 167 {
 168   fprintf_filtered (stream, _("%*sObjfile: %s\n"), depth, "",
 169                      objfile_name (objf));
 170 }
 171
 172 void
 173 dump_for_expression (struct ui_file *stream, int depth,
 174                      enum range_flag flags)
 175 {
 176   fprintf_filtered (stream, _("%*sRange:"), depth, "");
 177   if ((flags & RANGE_LOW_BOUND_DEFAULT) != 0)
 178     fputs_unfiltered (_("low-default "), stream);
 179   if ((flags & RANGE_HIGH_BOUND_DEFAULT) != 0)
 180     fputs_unfiltered (_("high-default "), stream);
 181   if ((flags & RANGE_HIGH_BOUND_EXCLUSIVE) != 0)
 182     fputs_unfiltered (_("high-exclusive "), stream);
 183   if ((flags & RANGE_HAS_STRIDE) != 0)
 184     fputs_unfiltered (_("has-stride"), stream);
 185   fprintf_filtered (stream, "\n");
 186 }
 187
 188 void
 189 dump_for_expression (struct ui_file *stream, int depth,
 190                      const std::unique_ptr<ada_component> &comp)
 191 {
 192   comp->dump (stream, depth);
 193 }
 194
 195 void
 196 float_const_operation::dump (struct ui_file *stream, int depth) const
 197 {
 198   fprintf_filtered (stream, _("%*sFloat: "), depth, "");
 199   print_floating (m_data.data (), m_type, stream);
 200   fprintf_filtered (stream, "\n");
 201 }
 202
 203 } /* namespace expr */