1 /* Definitions for Ada expressions
3 Copyright (C) 2020 Free Software Foundation, Inc.
5 This file is part of GDB.
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.
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.
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/>. */
25 extern struct value
*ada_unop_neg (struct type
*expect_type
,
26 struct expression
*exp
,
27 enum noside noside
, enum exp_opcode op
,
29 extern struct value
*ada_atr_tag (struct type
*expect_type
,
30 struct expression
*exp
,
31 enum noside noside
, enum exp_opcode op
,
33 extern struct value
*ada_atr_size (struct type
*expect_type
,
34 struct expression
*exp
,
35 enum noside noside
, enum exp_opcode op
,
37 extern struct value
*ada_abs (struct type
*expect_type
,
38 struct expression
*exp
,
39 enum noside noside
, enum exp_opcode op
,
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 extern struct value
*ada_equal_binop (struct type
*expect_type
,
50 struct expression
*exp
,
51 enum noside noside
, enum exp_opcode op
,
52 struct value
*arg1
, struct value
*arg2
);
53 extern struct value
*ada_ternop_slice (struct expression
*exp
,
56 struct value
*low_bound_val
,
57 struct value
*high_bound_val
);
58 extern struct value
*ada_binop_in_bounds (struct expression
*exp
,
67 /* In Ada, some generic operations must be wrapped with a handler that
68 handles some Ada-specific type conversions. */
69 class ada_wrapped_operation
70 : public tuple_holding_operation
<operation_up
>
74 using tuple_holding_operation::tuple_holding_operation
;
76 value
*evaluate (struct type
*expect_type
,
77 struct expression
*exp
,
78 enum noside noside
) override
;
80 enum exp_opcode
opcode () const override
81 { return std::get
<0> (m_storage
)->opcode (); }
84 /* An Ada string constant. */
85 class ada_string_operation
86 : public string_operation
90 using string_operation::string_operation
;
92 value
*evaluate (struct type
*expect_type
,
93 struct expression
*exp
,
94 enum noside noside
) override
;
97 /* The Ada TYPE'(EXP) construct. */
98 class ada_qual_operation
99 : public tuple_holding_operation
<operation_up
, struct type
*>
103 using tuple_holding_operation::tuple_holding_operation
;
105 value
*evaluate (struct type
*expect_type
,
106 struct expression
*exp
,
107 enum noside noside
) override
;
109 enum exp_opcode
opcode () const override
110 { return UNOP_QUAL
; }
113 /* Ternary in-range operator. */
114 class ada_ternop_range_operation
115 : public tuple_holding_operation
<operation_up
, operation_up
, operation_up
>
119 using tuple_holding_operation::tuple_holding_operation
;
121 value
*evaluate (struct type
*expect_type
,
122 struct expression
*exp
,
123 enum noside noside
) override
;
125 enum exp_opcode
opcode () const override
126 { return TERNOP_IN_RANGE
; }
129 using ada_neg_operation
= unop_operation
<UNOP_NEG
, ada_unop_neg
>;
130 using ada_atr_tag_operation
= unop_operation
<OP_ATR_TAG
, ada_atr_tag
>;
131 using ada_atr_size_operation
= unop_operation
<OP_ATR_SIZE
, ada_atr_size
>;
132 using ada_abs_operation
= unop_operation
<UNOP_ABS
, ada_abs
>;
134 /* The in-range operation, given a type. */
135 class ada_unop_range_operation
136 : public tuple_holding_operation
<operation_up
, struct type
*>
140 using tuple_holding_operation::tuple_holding_operation
;
142 value
*evaluate (struct type
*expect_type
,
143 struct expression
*exp
,
144 enum noside noside
) override
146 value
*val
= std::get
<0> (m_storage
)->evaluate (nullptr, exp
, noside
);
147 return ada_unop_in_range (expect_type
, exp
, noside
, UNOP_IN_RANGE
,
148 val
, std::get
<1> (m_storage
));
151 enum exp_opcode
opcode () const override
152 { return UNOP_IN_RANGE
; }
155 /* The Ada + and - operators. */
156 class ada_binop_addsub_operation
157 : public tuple_holding_operation
<enum exp_opcode
, operation_up
, operation_up
>
161 using tuple_holding_operation::tuple_holding_operation
;
163 value
*evaluate (struct type
*expect_type
,
164 struct expression
*exp
,
165 enum noside noside
) override
;
167 enum exp_opcode
opcode () const override
168 { return std::get
<0> (m_storage
); }
171 using ada_binop_mul_operation
= binop_operation
<BINOP_MUL
, ada_mult_binop
>;
172 using ada_binop_div_operation
= binop_operation
<BINOP_DIV
, ada_mult_binop
>;
173 using ada_binop_rem_operation
= binop_operation
<BINOP_REM
, ada_mult_binop
>;
174 using ada_binop_mod_operation
= binop_operation
<BINOP_MOD
, ada_mult_binop
>;
176 /* Implement the equal and not-equal operations for Ada. */
177 class ada_binop_equal_operation
178 : public tuple_holding_operation
<enum exp_opcode
, operation_up
, operation_up
>
182 using tuple_holding_operation::tuple_holding_operation
;
184 value
*evaluate (struct type
*expect_type
,
185 struct expression
*exp
,
186 enum noside noside
) override
188 value
*arg1
= std::get
<1> (m_storage
)->evaluate (nullptr, exp
, noside
);
189 value
*arg2
= std::get
<2> (m_storage
)->evaluate (value_type (arg1
),
191 return ada_equal_binop (expect_type
, exp
, noside
, std::get
<0> (m_storage
),
195 enum exp_opcode
opcode () const override
196 { return std::get
<0> (m_storage
); }
199 /* Bitwise operators for Ada. */
200 template<enum exp_opcode OP
>
201 class ada_bitwise_operation
202 : public maybe_constant_operation
<operation_up
, operation_up
>
206 using maybe_constant_operation::maybe_constant_operation
;
208 value
*evaluate (struct type
*expect_type
,
209 struct expression
*exp
,
210 enum noside noside
) override
212 value
*lhs
= std::get
<0> (m_storage
)->evaluate (nullptr, exp
, noside
);
213 value
*rhs
= std::get
<1> (m_storage
)->evaluate (nullptr, exp
, noside
);
214 value
*result
= eval_op_binary (expect_type
, exp
, noside
, OP
, lhs
, rhs
);
215 return value_cast (value_type (lhs
), result
);
218 enum exp_opcode
opcode () const override
222 using ada_bitwise_and_operation
= ada_bitwise_operation
<BINOP_BITWISE_AND
>;
223 using ada_bitwise_ior_operation
= ada_bitwise_operation
<BINOP_BITWISE_IOR
>;
224 using ada_bitwise_xor_operation
= ada_bitwise_operation
<BINOP_BITWISE_XOR
>;
226 /* Ada array- or string-slice operation. */
227 class ada_ternop_slice_operation
228 : public maybe_constant_operation
<operation_up
, operation_up
, operation_up
>
232 using maybe_constant_operation::maybe_constant_operation
;
234 value
*evaluate (struct type
*expect_type
,
235 struct expression
*exp
,
236 enum noside noside
) override
238 value
*array
= std::get
<0> (m_storage
)->evaluate (nullptr, exp
, noside
);
239 value
*low
= std::get
<1> (m_storage
)->evaluate (nullptr, exp
, noside
);
240 value
*high
= std::get
<2> (m_storage
)->evaluate (nullptr, exp
, noside
);
241 return ada_ternop_slice (exp
, noside
, array
, low
, high
);
244 enum exp_opcode
opcode () const override
245 { return TERNOP_SLICE
; }
248 /* Implement BINOP_IN_BOUNDS for Ada. */
249 class ada_binop_in_bounds_operation
250 : public maybe_constant_operation
<operation_up
, operation_up
, int>
254 using maybe_constant_operation::maybe_constant_operation
;
256 value
*evaluate (struct type
*expect_type
,
257 struct expression
*exp
,
258 enum noside noside
) override
260 value
*arg1
= std::get
<0> (m_storage
)->evaluate (nullptr, exp
, noside
);
261 value
*arg2
= std::get
<1> (m_storage
)->evaluate (nullptr, exp
, noside
);
262 return ada_binop_in_bounds (exp
, noside
, arg1
, arg2
,
263 std::get
<2> (m_storage
));
266 enum exp_opcode
opcode () const override
267 { return BINOP_IN_BOUNDS
; }
270 } /* namespace expr */
272 #endif /* ADA_EXP_H */