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/* Definitions for C expressions
Copyright (C) 2020 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 C_EXP_H
#define C_EXP_H
#include "expop.h"
#include "objc-lang.h"
extern struct value *eval_op_objc_selector (struct type *expect_type,
struct expression *exp,
enum noside noside,
const char *sel);
extern struct value *opencl_value_cast (struct type *type, struct value *arg);
extern struct value *eval_opencl_assign (struct type *expect_type,
struct expression *exp,
enum noside noside,
enum exp_opcode op,
struct value *arg1,
struct value *arg2);
extern struct value *opencl_relop (struct type *expect_type,
struct expression *exp,
enum noside noside, enum exp_opcode op,
struct value *arg1, struct value *arg2);
extern struct value *opencl_logical_not (struct type *expect_type,
struct expression *exp,
enum noside noside,
enum exp_opcode op,
struct value *arg);
namespace expr
{
class c_string_operation
: public tuple_holding_operation<enum c_string_type_values,
std::vector<std::string>>
{
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_STRING; }
};
class objc_nsstring_operation
: public tuple_holding_operation<std::string>
{
public:
using tuple_holding_operation::tuple_holding_operation;
value *evaluate (struct type *expect_type,
struct expression *exp,
enum noside noside) override
{
if (noside == EVAL_SKIP)
return eval_skip_value (exp);
const std::string &str = std::get<0> (m_storage);
return value_nsstring (exp->gdbarch, str.c_str (), str.size () + 1);
}
enum exp_opcode opcode () const override
{ return OP_OBJC_NSSTRING; }
};
class objc_selector_operation
: public tuple_holding_operation<std::string>
{
public:
using tuple_holding_operation::tuple_holding_operation;
value *evaluate (struct type *expect_type,
struct expression *exp,
enum noside noside) override
{
if (noside == EVAL_SKIP)
return eval_skip_value (exp);
return eval_op_objc_selector (expect_type, exp, noside,
std::get<0> (m_storage).c_str ());
}
enum exp_opcode opcode () const override
{ return OP_OBJC_SELECTOR; }
};
/* An Objective C message call. */
class objc_msgcall_operation
: public tuple_holding_operation<CORE_ADDR, 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_OBJC_MSGCALL; }
};
using opencl_cast_type_operation = cxx_cast_operation<UNOP_CAST_TYPE,
opencl_value_cast>;
/* Binary operations, as needed for OpenCL. */
template<enum exp_opcode OP, binary_ftype FUNC,
typename BASE = maybe_constant_operation<operation_up, operation_up>>
class opencl_binop_operation
: public BASE
{
public:
using BASE::BASE;
value *evaluate (struct type *expect_type,
struct expression *exp,
enum noside noside) override
{
value *lhs
= std::get<0> (this->m_storage)->evaluate (nullptr, exp, noside);
value *rhs
= std::get<1> (this->m_storage)->evaluate (value_type (lhs), exp,
noside);
return FUNC (expect_type, exp, noside, OP, lhs, rhs);
}
enum exp_opcode opcode () const override
{ return OP; }
};
using opencl_assign_operation = opencl_binop_operation<BINOP_ASSIGN,
eval_opencl_assign,
assign_operation>;
using opencl_equal_operation = opencl_binop_operation<BINOP_EQUAL,
opencl_relop>;
using opencl_notequal_operation = opencl_binop_operation<BINOP_NOTEQUAL,
opencl_relop>;
using opencl_less_operation = opencl_binop_operation<BINOP_LESS,
opencl_relop>;
using opencl_gtr_operation = opencl_binop_operation<BINOP_GTR,
opencl_relop>;
using opencl_geq_operation = opencl_binop_operation<BINOP_GEQ,
opencl_relop>;
using opencl_leq_operation = opencl_binop_operation<BINOP_LEQ,
opencl_relop>;
using opencl_not_operation = unop_operation<UNOP_LOGICAL_NOT,
opencl_logical_not>;
/* STRUCTOP_STRUCT implementation for OpenCL. */
class opencl_structop_operation
: public structop_base_operation
{
public:
using structop_base_operation::structop_base_operation;
value *evaluate (struct type *expect_type,
struct expression *exp,
enum noside noside) override;
enum exp_opcode opcode () const override
{ return STRUCTOP_STRUCT; }
};
/* This handles the "&&" and "||" operations for OpenCL. */
class opencl_logical_binop_operation
: public tuple_holding_operation<enum 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); }
};
/* The ?: ternary operator for OpenCL. */
class opencl_ternop_cond_operation
: public tuple_holding_operation<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;
enum exp_opcode opcode () const override
{ return TERNOP_COND; }
};
}/* namespace expr */
#endif /* C_EXP_H */
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