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,
 114                      bound_minimal_symbol msym)
 115 {
 116   fprintf_filtered (stream, _("%*sMinsym %s in objfile %s\n"), depth, "",
 117                     msym.minsym->print_name (), objfile_name (msym.objfile));
 118 }
 119
 120 void
 121 dump_for_expression (struct ui_file *stream, int depth, const block *bl)
 122 {
 123   fprintf_filtered (stream, _("%*sBlock: %p\n"), depth, "", bl);
 124 }
 125
 126 void
 127 dump_for_expression (struct ui_file *stream, int depth,
 128                      const block_symbol &sym)
 129 {
 130   fprintf_filtered (stream, _("%*sBlock symbol:\n"), depth, "");
 131   dump_for_expression (stream, depth + 1, sym.symbol);
 132   dump_for_expression (stream, depth + 1, sym.block);
 133 }
 134
 135 void
 136 dump_for_expression (struct ui_file *stream, int depth,
 137                      type_instance_flags flags)
 138 {
 139   fprintf_filtered (stream, _("%*sType flags: "), depth, "");
 140   if (flags & TYPE_INSTANCE_FLAG_CONST)
 141     fputs_unfiltered ("const ", stream);
 142   if (flags & TYPE_INSTANCE_FLAG_VOLATILE)
 143     fputs_unfiltered ("volatile", stream);
 144   fprintf_filtered (stream, "\n");
 145 }
 146
 147 void
 148 dump_for_expression (struct ui_file *stream, int depth,
 149                      enum c_string_type_values flags)
 150 {
 151   fprintf_filtered (stream, _("%*sC string flags: "), depth, "");
 152   switch (flags & ~C_CHAR)
 153     {
 154     case C_WIDE_STRING:
 155       fputs_unfiltered (_("wide "), stream);
 156       break;
 157     case C_STRING_16:
 158       fputs_unfiltered (_("u16 "), stream);
 159       break;
 160     case C_STRING_32:
 161       fputs_unfiltered (_("u32 "), stream);
 162       break;
 163     default:
 164       fputs_unfiltered (_("ordinary "), stream);
 165       break;
 166     }
 167
 168   if ((flags & C_CHAR) != 0)
 169     fputs_unfiltered (_("char"), stream);
 170   else
 171     fputs_unfiltered (_("string"), stream);
 172   fputs_unfiltered ("\n", stream);
 173 }
 174
 175 void
 176 dump_for_expression (struct ui_file *stream, int depth,
 177                      enum range_flag flags)
 178 {
 179   fprintf_filtered (stream, _("%*sRange:"), depth, "");
 180   if ((flags & RANGE_LOW_BOUND_DEFAULT) != 0)
 181     fputs_unfiltered (_("low-default "), stream);
 182   if ((flags & RANGE_HIGH_BOUND_DEFAULT) != 0)
 183     fputs_unfiltered (_("high-default "), stream);
 184   if ((flags & RANGE_HIGH_BOUND_EXCLUSIVE) != 0)
 185     fputs_unfiltered (_("high-exclusive "), stream);
 186   if ((flags & RANGE_HAS_STRIDE) != 0)
 187     fputs_unfiltered (_("has-stride"), stream);
 188   fprintf_filtered (stream, "\n");
 189 }
 190
 191 void
 192 dump_for_expression (struct ui_file *stream, int depth,
 193                      const std::unique_ptr<ada_component> &comp)
 194 {
 195   comp->dump (stream, depth);
 196 }
 197
 198 void
 199 float_const_operation::dump (struct ui_file *stream, int depth) const
 200 {
 201   fprintf_filtered (stream, _("%*sFloat: "), depth, "");
 202   print_floating (m_data.data (), m_type, stream);
 203   fprintf_filtered (stream, "\n");
 204 }
 205
 206 } /* namespace expr */