[deliverable/binutils-gdb.git] / gdb / f-exp.h

/* 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 */
Commit	Line	Data
9dcd3e29 TT	1	/* Definitions for Fortran expressions
9dcd3e29 TT	2
f403a4e4	3	Copyright (C) 2020, 2021 Free Software Foundation, Inc.
9dcd3e29 TT	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 FORTRAN_EXP_H
	21	#define FORTRAN_EXP_H
	22
	23	#include "expop.h"
	24
	25	extern struct value eval_op_f_abs (struct type expect_type,
	26	struct expression *exp,
	27	enum noside noside,
	28	enum exp_opcode opcode,
	29	struct value *arg1);
	30	extern struct value eval_op_f_mod (struct type expect_type,
	31	struct expression *exp,
	32	enum noside noside,
	33	enum exp_opcode opcode,
	34	struct value arg1, struct value arg2);
	35	extern struct value eval_op_f_ceil (struct type expect_type,
	36	struct expression *exp,
	37	enum noside noside,
	38	enum exp_opcode opcode,
	39	struct value *arg1);
	40	extern struct value eval_op_f_floor (struct type expect_type,
	41	struct expression *exp,
	42	enum noside noside,
	43	enum exp_opcode opcode,
	44	struct value *arg1);
	45	extern struct value eval_op_f_modulo (struct type expect_type,
	46	struct expression *exp,
	47	enum noside noside,
	48	enum exp_opcode opcode,
	49	struct value arg1, struct value arg2);
	50	extern struct value eval_op_f_cmplx (struct type expect_type,
	51	struct expression *exp,
	52	enum noside noside,
	53	enum exp_opcode opcode,
	54	struct value arg1, struct value arg2);
	55	extern struct value eval_op_f_kind (struct type expect_type,
	56	struct expression *exp,
	57	enum noside noside,
	58	enum exp_opcode opcode,
	59	struct value *arg1);
eb4c9271 TT	60	extern struct value eval_op_f_associated (struct type expect_type,
	61	struct expression *exp,
	62	enum noside noside,
	63	enum exp_opcode opcode,
	64	struct value *arg1);
	65	extern struct value eval_op_f_associated (struct type expect_type,
	66	struct expression *exp,
	67	enum noside noside,
	68	enum exp_opcode opcode,
	69	struct value *arg1,
	70	struct value *arg2);
f403a4e4 TT	71	extern struct value * eval_op_f_allocated (struct type *expect_type,
	72	struct expression *exp,
	73	enum noside noside,
	74	enum exp_opcode op,
	75	struct value *arg1);
9dcd3e29	76
e14816a8 AB	77	/* Implement the evaluation of UNOP_FORTRAN_RANK. EXPECTED_TYPE, EXP, and
	78	NOSIDE are as for expression::evaluate (see expression.h). OP will
	79	always be UNOP_FORTRAN_RANK, and ARG1 is the argument being passed to
	80	the expression. */
	81
	82	extern struct value eval_op_f_rank (struct type expect_type,
	83	struct expression *exp,
	84	enum noside noside,
	85	enum exp_opcode op,
	86	struct value *arg1);
	87
7ba155b3 AB	88	/* Implement expression evaluation for Fortran's SIZE keyword. For
	89	EXPECT_TYPE, EXP, and NOSIDE see expression::evaluate (in
	90	expression.h). OP will always for FORTRAN_ARRAY_SIZE. ARG1 is the
	91	value passed to SIZE if it is only passed a single argument. For the
	92	two argument form see the overload of this function below. */
	93
	94	extern struct value eval_op_f_array_size (struct type expect_type,
	95	struct expression *exp,
	96	enum noside noside,
	97	enum exp_opcode opcode,
	98	struct value *arg1);
	99
	100	/* An overload of EVAL_OP_F_ARRAY_SIZE above, this version takes two
	101	arguments, representing the two values passed to Fortran's SIZE
	102	keyword. */
	103
	104	extern struct value eval_op_f_array_size (struct type expect_type,
	105	struct expression *exp,
	106	enum noside noside,
	107	enum exp_opcode opcode,
	108	struct value *arg1,
	109	struct value *arg2);
	110
	111
9dcd3e29 TT	112	namespace expr
	113	{
	114
	115	using fortran_abs_operation = unop_operation<UNOP_ABS, eval_op_f_abs>;
	116	using fortran_ceil_operation = unop_operation<UNOP_FORTRAN_CEILING,
	117	eval_op_f_ceil>;
	118	using fortran_floor_operation = unop_operation<UNOP_FORTRAN_FLOOR,
	119	eval_op_f_floor>;
	120	using fortran_kind_operation = unop_operation<UNOP_FORTRAN_KIND,
	121	eval_op_f_kind>;
f403a4e4 TT	122	using fortran_allocated_operation = unop_operation<UNOP_FORTRAN_ALLOCATED,
f403a4e4 TT	123	eval_op_f_allocated>;
9dcd3e29 TT	124
	125	using fortran_mod_operation = binop_operation<BINOP_MOD, eval_op_f_mod>;
	126	using fortran_modulo_operation = binop_operation<BINOP_FORTRAN_MODULO,
	127	eval_op_f_modulo>;
eb4c9271 TT	128	using fortran_associated_1arg = unop_operation<FORTRAN_ASSOCIATED,
	129	eval_op_f_associated>;
	130	using fortran_associated_2arg = binop_operation<FORTRAN_ASSOCIATED,
	131	eval_op_f_associated>;
e14816a8 AB	132	using fortran_rank_operation = unop_operation<UNOP_FORTRAN_RANK,
e14816a8 AB	133	eval_op_f_rank>;
7ba155b3 AB	134	using fortran_array_size_1arg = unop_operation<FORTRAN_ARRAY_SIZE,
	135	eval_op_f_array_size>;
	136	using fortran_array_size_2arg = binop_operation<FORTRAN_ARRAY_SIZE,
	137	eval_op_f_array_size>;
9dcd3e29 TT	138
	139	/* The Fortran "complex" operation. */
	140	class fortran_cmplx_operation
	141	: public tuple_holding_operation<operation_up, operation_up>
	142	{
	143	public:
	144
	145	using tuple_holding_operation::tuple_holding_operation;
	146
	147	value evaluate (struct type expect_type,
	148	struct expression *exp,
	149	enum noside noside) override
	150	{
	151	value *arg1 = std::get<0> (m_storage)->evaluate (nullptr, exp, noside);
	152	value *arg2 = std::get<1> (m_storage)->evaluate (value_type (arg1),
	153	exp, noside);
	154	return eval_op_f_cmplx (expect_type, exp, noside, BINOP_FORTRAN_CMPLX,
	155	arg1, arg2);
	156	}
	157
	158	enum exp_opcode opcode () const override
	159	{ return BINOP_FORTRAN_CMPLX; }
	160	};
	161
2f98abe1 TT	162	/* OP_RANGE for Fortran. */
	163	class fortran_range_operation
	164	: public tuple_holding_operation<enum range_flag, operation_up, operation_up,
	165	operation_up>
	166	{
	167	public:
	168
	169	using tuple_holding_operation::tuple_holding_operation;
	170
	171	value evaluate (struct type expect_type,
	172	struct expression *exp,
	173	enum noside noside) override
	174	{
	175	error (_("ranges not allowed in this context"));
	176	}
	177
	178	range_flag get_flags () const
	179	{
	180	return std::get<0> (m_storage);
	181	}
	182
	183	value evaluate0 (struct expression exp, enum noside noside) const
	184	{
	185	return std::get<1> (m_storage)->evaluate (nullptr, exp, noside);
	186	}
	187
	188	value evaluate1 (struct expression exp, enum noside noside) const
	189	{
	190	return std::get<2> (m_storage)->evaluate (nullptr, exp, noside);
	191	}
	192
	193	value evaluate2 (struct expression exp, enum noside noside) const
	194	{
	195	return std::get<3> (m_storage)->evaluate (nullptr, exp, noside);
	196	}
	197
	198	enum exp_opcode opcode () const override
	199	{ return OP_RANGE; }
	200	};
	201
	202	/* In F77, functions, substring ops and array subscript operations
	203	cannot be disambiguated at parse time. This operation handles
	204	both, deciding which do to at evaluation time. */
	205	class fortran_undetermined
	206	: public tuple_holding_operation<operation_up, std::vector<operation_up>>
	207	{
	208	public:
	209
	210	using tuple_holding_operation::tuple_holding_operation;
	211
	212	value evaluate (struct type expect_type,
	213	struct expression *exp,
	214	enum noside noside) override;
	215
	216	enum exp_opcode opcode () const override
	217	{ return OP_F77_UNDETERMINED_ARGLIST; }
	218
	219	private:
	220
	221	value value_subarray (value array, struct expression *exp,
	222	enum noside noside);
	223	};
	224
58a76c72 TT	225	/* Single-argument form of Fortran ubound/lbound intrinsics. */
	226	class fortran_bound_1arg
	227	: public tuple_holding_operation<exp_opcode, operation_up>
	228	{
	229	public:
	230
	231	using tuple_holding_operation::tuple_holding_operation;
	232
	233	value evaluate (struct type expect_type,
	234	struct expression *exp,
	235	enum noside noside) override;
	236
	237	enum exp_opcode opcode () const override
	238	{ return std::get<0> (m_storage); }
	239	};
	240
	241	/* Two-argument form of Fortran ubound/lbound intrinsics. */
	242	class fortran_bound_2arg
	243	: public tuple_holding_operation<exp_opcode, operation_up, operation_up>
	244	{
	245	public:
	246
	247	using tuple_holding_operation::tuple_holding_operation;
	248
	249	value evaluate (struct type expect_type,
	250	struct expression *exp,
	251	enum noside noside) override;
	252
	253	enum exp_opcode opcode () const override
	254	{ return std::get<0> (m_storage); }
	255	};
	256
9dcd3e29 TT	257	} /* namespace expr */
	258
	259	#endif /* FORTRAN_EXP_H */