gdb/ada-exp.h

   1 /* Definitions for Ada expressions
   2
   3    Copyright (C) 2020 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 #ifndef ADA_EXP_H
  21 #define ADA_EXP_H
  22
  23 #include "expop.h"
  24
  25 extern struct value *ada_unop_neg (struct type *expect_type,
  26                                    struct expression *exp,
  27                                    enum noside noside, enum exp_opcode op,
  28                                    struct value *arg1);
  29 extern struct value *ada_atr_tag (struct type *expect_type,
  30                                   struct expression *exp,
  31                                   enum noside noside, enum exp_opcode op,
  32                                   struct value *arg1);
  33 extern struct value *ada_atr_size (struct type *expect_type,
  34                                    struct expression *exp,
  35                                    enum noside noside, enum exp_opcode op,
  36                                    struct value *arg1);
  37 extern struct value *ada_abs (struct type *expect_type,
  38                               struct expression *exp,
  39                               enum noside noside, enum exp_opcode op,
  40                               struct value *arg1);
  41
  42 namespace expr
  43 {
  44
  45 /* In Ada, some generic operations must be wrapped with a handler that
  46    handles some Ada-specific type conversions.  */
  47 class ada_wrapped_operation
  48   : public tuple_holding_operation<operation_up>
  49 {
  50 public:
  51
  52   using tuple_holding_operation::tuple_holding_operation;
  53
  54   value *evaluate (struct type *expect_type,
  55                    struct expression *exp,
  56                    enum noside noside) override;
  57
  58   enum exp_opcode opcode () const override
  59   { return std::get<0> (m_storage)->opcode (); }
  60 };
  61
  62 /* An Ada string constant.  */
  63 class ada_string_operation
  64   : public string_operation
  65 {
  66 public:
  67
  68   using string_operation::string_operation;
  69
  70   value *evaluate (struct type *expect_type,
  71                    struct expression *exp,
  72                    enum noside noside) override;
  73 };
  74
  75 /* The Ada TYPE'(EXP) construct.  */
  76 class ada_qual_operation
  77   : public tuple_holding_operation<operation_up, struct type *>
  78 {
  79 public:
  80
  81   using tuple_holding_operation::tuple_holding_operation;
  82
  83   value *evaluate (struct type *expect_type,
  84                    struct expression *exp,
  85                    enum noside noside) override;
  86
  87   enum exp_opcode opcode () const override
  88   { return UNOP_QUAL; }
  89 };
  90
  91 /* Ternary in-range operator.  */
  92 class ada_ternop_range_operation
  93   : public tuple_holding_operation<operation_up, operation_up, operation_up>
  94 {
  95 public:
  96
  97   using tuple_holding_operation::tuple_holding_operation;
  98
  99   value *evaluate (struct type *expect_type,
 100                    struct expression *exp,
 101                    enum noside noside) override;
 102
 103   enum exp_opcode opcode () const override
 104   { return TERNOP_IN_RANGE; }
 105 };
 106
 107 using ada_neg_operation = unop_operation<UNOP_NEG, ada_unop_neg>;
 108 using ada_atr_tag_operation = unop_operation<OP_ATR_TAG, ada_atr_tag>;
 109 using ada_atr_size_operation = unop_operation<OP_ATR_SIZE, ada_atr_size>;
 110 using ada_abs_operation = unop_operation<UNOP_ABS, ada_abs>;
 111
 112 } /* namespace expr */
 113
 114 #endif /* ADA_EXP_H */