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 extern struct value *ada_unop_in_range (struct type *expect_type,
  42                                         struct expression *exp,
  43                                         enum noside noside, enum exp_opcode op,
  44                                         struct value *arg1, struct type *type);
  45 extern struct value *ada_mult_binop (struct type *expect_type,
  46                                      struct expression *exp,
  47                                      enum noside noside, enum exp_opcode op,
  48                                      struct value *arg1, struct value *arg2);
  49
  50 namespace expr
  51 {
  52
  53 /* In Ada, some generic operations must be wrapped with a handler that
  54    handles some Ada-specific type conversions.  */
  55 class ada_wrapped_operation
  56   : public tuple_holding_operation<operation_up>
  57 {
  58 public:
  59
  60   using tuple_holding_operation::tuple_holding_operation;
  61
  62   value *evaluate (struct type *expect_type,
  63                    struct expression *exp,
  64                    enum noside noside) override;
  65
  66   enum exp_opcode opcode () const override
  67   { return std::get<0> (m_storage)->opcode (); }
  68 };
  69
  70 /* An Ada string constant.  */
  71 class ada_string_operation
  72   : public string_operation
  73 {
  74 public:
  75
  76   using string_operation::string_operation;
  77
  78   value *evaluate (struct type *expect_type,
  79                    struct expression *exp,
  80                    enum noside noside) override;
  81 };
  82
  83 /* The Ada TYPE'(EXP) construct.  */
  84 class ada_qual_operation
  85   : public tuple_holding_operation<operation_up, struct type *>
  86 {
  87 public:
  88
  89   using tuple_holding_operation::tuple_holding_operation;
  90
  91   value *evaluate (struct type *expect_type,
  92                    struct expression *exp,
  93                    enum noside noside) override;
  94
  95   enum exp_opcode opcode () const override
  96   { return UNOP_QUAL; }
  97 };
  98
  99 /* Ternary in-range operator.  */
 100 class ada_ternop_range_operation
 101   : public tuple_holding_operation<operation_up, operation_up, operation_up>
 102 {
 103 public:
 104
 105   using tuple_holding_operation::tuple_holding_operation;
 106
 107   value *evaluate (struct type *expect_type,
 108                    struct expression *exp,
 109                    enum noside noside) override;
 110
 111   enum exp_opcode opcode () const override
 112   { return TERNOP_IN_RANGE; }
 113 };
 114
 115 using ada_neg_operation = unop_operation<UNOP_NEG, ada_unop_neg>;
 116 using ada_atr_tag_operation = unop_operation<OP_ATR_TAG, ada_atr_tag>;
 117 using ada_atr_size_operation = unop_operation<OP_ATR_SIZE, ada_atr_size>;
 118 using ada_abs_operation = unop_operation<UNOP_ABS, ada_abs>;
 119
 120 /* The in-range operation, given a type.  */
 121 class ada_unop_range_operation
 122   : public tuple_holding_operation<operation_up, struct type *>
 123 {
 124 public:
 125
 126   using tuple_holding_operation::tuple_holding_operation;
 127
 128   value *evaluate (struct type *expect_type,
 129                    struct expression *exp,
 130                    enum noside noside) override
 131   {
 132     value *val = std::get<0> (m_storage)->evaluate (nullptr, exp, noside);
 133     return ada_unop_in_range (expect_type, exp, noside, UNOP_IN_RANGE,
 134                               val, std::get<1> (m_storage));
 135   }
 136
 137   enum exp_opcode opcode () const override
 138   { return UNOP_IN_RANGE; }
 139 };
 140
 141 /* The Ada + and - operators.  */
 142 class ada_binop_addsub_operation
 143   : public tuple_holding_operation<enum exp_opcode, operation_up, operation_up>
 144 {
 145 public:
 146
 147   using tuple_holding_operation::tuple_holding_operation;
 148
 149   value *evaluate (struct type *expect_type,
 150                    struct expression *exp,
 151                    enum noside noside) override;
 152
 153   enum exp_opcode opcode () const override
 154   { return std::get<0> (m_storage); }
 155 };
 156
 157 using ada_binop_mul_operation = binop_operation<BINOP_MUL, ada_mult_binop>;
 158 using ada_binop_div_operation = binop_operation<BINOP_DIV, ada_mult_binop>;
 159 using ada_binop_rem_operation = binop_operation<BINOP_REM, ada_mult_binop>;
 160 using ada_binop_mod_operation = binop_operation<BINOP_MOD, ada_mult_binop>;
 161
 162 } /* namespace expr */
 163
 164 #endif /* ADA_EXP_H */