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2bc9b40ce1
This adds a couple of simple Modula-2 operations. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * m2-lang.c (eval_op_m2_high, eval_op_m2_subscript): No longer static. * m2-exp.h: New file.
85 lines
2.4 KiB
C++
85 lines
2.4 KiB
C++
/* Definitions for Modula-2 expressions
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Copyright (C) 2020 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef M2_EXP_H
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#define M2_EXP_H
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#include "expop.h"
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extern struct value *eval_op_m2_high (struct type *expect_type,
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struct expression *exp,
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enum noside noside,
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struct value *arg1);
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extern struct value *eval_op_m2_subscript (struct type *expect_type,
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struct expression *exp,
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enum noside noside,
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struct value *arg1,
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struct value *arg2);
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namespace expr
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{
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/* The Modula-2 "HIGH" operation. */
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class m2_unop_high_operation
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: public tuple_holding_operation<operation_up>
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{
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public:
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using tuple_holding_operation::tuple_holding_operation;
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value *evaluate (struct type *expect_type,
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struct expression *exp,
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enum noside noside) override
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{
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value *arg1 = std::get<0> (m_storage)->evaluate_with_coercion (exp,
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noside);
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return eval_op_m2_high (expect_type, exp, noside, arg1);
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}
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enum exp_opcode opcode () const override
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{ return UNOP_HIGH; }
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};
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/* Subscripting for Modula-2. */
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class m2_binop_subscript_operation
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: public tuple_holding_operation<operation_up, operation_up>
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{
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public:
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using tuple_holding_operation::tuple_holding_operation;
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value *evaluate (struct type *expect_type,
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struct expression *exp,
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enum noside noside) override
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{
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value *arg1 = std::get<0> (m_storage)->evaluate_with_coercion (exp,
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noside);
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value *arg2 = std::get<1> (m_storage)->evaluate_with_coercion (exp,
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noside);
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return eval_op_m2_subscript (expect_type, exp, noside, arg1, arg2);
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}
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enum exp_opcode opcode () const override
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{ return BINOP_SUBSCRIPT; }
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};
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} /* namespace expr */
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#endif /* M2_EXP_H */
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