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/* Definitions for Fortran expressions
Copyright (C) 2020, 2021 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef FORTRAN_EXP_H
#define FORTRAN_EXP_H
#include "expop.h"
extern struct value *eval_op_f_abs (struct type *expect_type,
struct expression *exp,
enum noside noside,
enum exp_opcode opcode,
struct value *arg1);
extern struct value *eval_op_f_mod (struct type *expect_type,
struct expression *exp,
enum noside noside,
enum exp_opcode opcode,
struct value *arg1, struct value *arg2);
extern struct value *eval_op_f_ceil (struct type *expect_type,
struct expression *exp,
enum noside noside,
enum exp_opcode opcode,
struct value *arg1);
extern struct value *eval_op_f_floor (struct type *expect_type,
struct expression *exp,
enum noside noside,
enum exp_opcode opcode,
struct value *arg1);
extern struct value *eval_op_f_modulo (struct type *expect_type,
struct expression *exp,
enum noside noside,
enum exp_opcode opcode,
struct value *arg1, struct value *arg2);
extern struct value *eval_op_f_cmplx (struct type *expect_type,
struct expression *exp,
enum noside noside,
enum exp_opcode opcode,
struct value *arg1, struct value *arg2);
extern struct value *eval_op_f_kind (struct type *expect_type,
struct expression *exp,
enum noside noside,
enum exp_opcode opcode,
struct value *arg1);
extern struct value *eval_op_f_associated (struct type *expect_type,
struct expression *exp,
enum noside noside,
enum exp_opcode opcode,
struct value *arg1);
extern struct value *eval_op_f_associated (struct type *expect_type,
struct expression *exp,
enum noside noside,
enum exp_opcode opcode,
struct value *arg1,
struct value *arg2);
extern struct value * eval_op_f_allocated (struct type *expect_type,
struct expression *exp,
enum noside noside,
enum exp_opcode op,
struct value *arg1);
/* Implement the evaluation of UNOP_FORTRAN_RANK. EXPECTED_TYPE, EXP, and
NOSIDE are as for expression::evaluate (see expression.h). OP will
always be UNOP_FORTRAN_RANK, and ARG1 is the argument being passed to
the expression. */
extern struct value *eval_op_f_rank (struct type *expect_type,
struct expression *exp,
enum noside noside,
enum exp_opcode op,
struct value *arg1);
/* Implement expression evaluation for Fortran's SIZE keyword. For
EXPECT_TYPE, EXP, and NOSIDE see expression::evaluate (in
expression.h). OP will always for FORTRAN_ARRAY_SIZE. ARG1 is the
value passed to SIZE if it is only passed a single argument. For the
two argument form see the overload of this function below. */
extern struct value *eval_op_f_array_size (struct type *expect_type,
struct expression *exp,
enum noside noside,
enum exp_opcode opcode,
struct value *arg1);
/* An overload of EVAL_OP_F_ARRAY_SIZE above, this version takes two
arguments, representing the two values passed to Fortran's SIZE
keyword. */
extern struct value *eval_op_f_array_size (struct type *expect_type,
struct expression *exp,
enum noside noside,
enum exp_opcode opcode,
struct value *arg1,
struct value *arg2);
namespace expr
{
using fortran_abs_operation = unop_operation<UNOP_ABS, eval_op_f_abs>;
using fortran_ceil_operation = unop_operation<UNOP_FORTRAN_CEILING,
eval_op_f_ceil>;
using fortran_floor_operation = unop_operation<UNOP_FORTRAN_FLOOR,
eval_op_f_floor>;
using fortran_kind_operation = unop_operation<UNOP_FORTRAN_KIND,
eval_op_f_kind>;
using fortran_allocated_operation = unop_operation<UNOP_FORTRAN_ALLOCATED,
eval_op_f_allocated>;
using fortran_mod_operation = binop_operation<BINOP_MOD, eval_op_f_mod>;
using fortran_modulo_operation = binop_operation<BINOP_FORTRAN_MODULO,
eval_op_f_modulo>;
using fortran_associated_1arg = unop_operation<FORTRAN_ASSOCIATED,
eval_op_f_associated>;
using fortran_associated_2arg = binop_operation<FORTRAN_ASSOCIATED,
eval_op_f_associated>;
using fortran_rank_operation = unop_operation<UNOP_FORTRAN_RANK,
eval_op_f_rank>;
using fortran_array_size_1arg = unop_operation<FORTRAN_ARRAY_SIZE,
eval_op_f_array_size>;
using fortran_array_size_2arg = binop_operation<FORTRAN_ARRAY_SIZE,
eval_op_f_array_size>;
/* The Fortran "complex" operation. */
class fortran_cmplx_operation
: public tuple_holding_operation<operation_up, operation_up>
{
public:
using tuple_holding_operation::tuple_holding_operation;
value *evaluate (struct type *expect_type,
struct expression *exp,
enum noside noside) override
{
value *arg1 = std::get<0> (m_storage)->evaluate (nullptr, exp, noside);
value *arg2 = std::get<1> (m_storage)->evaluate (value_type (arg1),
exp, noside);
return eval_op_f_cmplx (expect_type, exp, noside, BINOP_FORTRAN_CMPLX,
arg1, arg2);
}
enum exp_opcode opcode () const override
{ return BINOP_FORTRAN_CMPLX; }
};
/* OP_RANGE for Fortran. */
class fortran_range_operation
: public tuple_holding_operation<enum range_flag, operation_up, operation_up,
operation_up>
{
public:
using tuple_holding_operation::tuple_holding_operation;
value *evaluate (struct type *expect_type,
struct expression *exp,
enum noside noside) override
{
error (_("ranges not allowed in this context"));
}
range_flag get_flags () const
{
return std::get<0> (m_storage);
}
value *evaluate0 (struct expression *exp, enum noside noside) const
{
return std::get<1> (m_storage)->evaluate (nullptr, exp, noside);
}
value *evaluate1 (struct expression *exp, enum noside noside) const
{
return std::get<2> (m_storage)->evaluate (nullptr, exp, noside);
}
value *evaluate2 (struct expression *exp, enum noside noside) const
{
return std::get<3> (m_storage)->evaluate (nullptr, exp, noside);
}
enum exp_opcode opcode () const override
{ return OP_RANGE; }
};
/* In F77, functions, substring ops and array subscript operations
cannot be disambiguated at parse time. This operation handles
both, deciding which do to at evaluation time. */
class fortran_undetermined
: public tuple_holding_operation<operation_up, std::vector<operation_up>>
{
public:
using tuple_holding_operation::tuple_holding_operation;
value *evaluate (struct type *expect_type,
struct expression *exp,
enum noside noside) override;
enum exp_opcode opcode () const override
{ return OP_F77_UNDETERMINED_ARGLIST; }
private:
value *value_subarray (value *array, struct expression *exp,
enum noside noside);
};
/* Single-argument form of Fortran ubound/lbound intrinsics. */
class fortran_bound_1arg
: public tuple_holding_operation<exp_opcode, operation_up>
{
public:
using tuple_holding_operation::tuple_holding_operation;
value *evaluate (struct type *expect_type,
struct expression *exp,
enum noside noside) override;
enum exp_opcode opcode () const override
{ return std::get<0> (m_storage); }
};
/* Two-argument form of Fortran ubound/lbound intrinsics. */
class fortran_bound_2arg
: public tuple_holding_operation<exp_opcode, operation_up, operation_up>
{
public:
using tuple_holding_operation::tuple_holding_operation;
value *evaluate (struct type *expect_type,
struct expression *exp,
enum noside noside) override;
enum exp_opcode opcode () const override
{ return std::get<0> (m_storage); }
};
} /* namespace expr */
#endif /* FORTRAN_EXP_H */
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