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1 | /* Definitions for Modula-2 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 M2_EXP_H | |
21 | #define M2_EXP_H | |
22 | ||
23 | #include "expop.h" | |
24 | ||
25 | extern struct value *eval_op_m2_high (struct type *expect_type, | |
26 | struct expression *exp, | |
27 | enum noside noside, | |
28 | struct value *arg1); | |
29 | extern struct value *eval_op_m2_subscript (struct type *expect_type, | |
30 | struct expression *exp, | |
31 | enum noside noside, | |
32 | struct value *arg1, | |
33 | struct value *arg2); | |
34 | ||
35 | namespace expr | |
36 | { | |
37 | ||
38 | /* The Modula-2 "HIGH" operation. */ | |
39 | class m2_unop_high_operation | |
40 | : public tuple_holding_operation<operation_up> | |
41 | { | |
42 | public: | |
43 | ||
44 | using tuple_holding_operation::tuple_holding_operation; | |
45 | ||
46 | value *evaluate (struct type *expect_type, | |
47 | struct expression *exp, | |
48 | enum noside noside) override | |
49 | { | |
50 | value *arg1 = std::get<0> (m_storage)->evaluate_with_coercion (exp, | |
51 | noside); | |
52 | return eval_op_m2_high (expect_type, exp, noside, arg1); | |
53 | } | |
54 | ||
55 | enum exp_opcode opcode () const override | |
56 | { return UNOP_HIGH; } | |
57 | }; | |
58 | ||
59 | /* Subscripting for Modula-2. */ | |
60 | class m2_binop_subscript_operation | |
61 | : public tuple_holding_operation<operation_up, operation_up> | |
62 | { | |
63 | public: | |
64 | ||
65 | using tuple_holding_operation::tuple_holding_operation; | |
66 | ||
67 | value *evaluate (struct type *expect_type, | |
68 | struct expression *exp, | |
69 | enum noside noside) override | |
70 | { | |
71 | value *arg1 = std::get<0> (m_storage)->evaluate_with_coercion (exp, | |
72 | noside); | |
73 | value *arg2 = std::get<1> (m_storage)->evaluate_with_coercion (exp, | |
74 | noside); | |
75 | return eval_op_m2_subscript (expect_type, exp, noside, arg1, arg2); | |
76 | } | |
77 | ||
78 | enum exp_opcode opcode () const override | |
79 | { return BINOP_SUBSCRIPT; } | |
80 | }; | |
81 | ||
82 | } /* namespace expr */ | |
83 | ||
84 | #endif /* M2_EXP_H */ |