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/* Copyright (C) 2021 Free Software Foundation, Inc.
Contributed by Oracle.
This file is part of GNU Binutils.
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, 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, write to the Free Software
Foundation, 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
#ifndef _EXPRESSION_H
#define _EXPRESSION_H
#include <inttypes.h>
class Experiment;
class DataView;
class DbeView;
class Histable;
class Expression
{
public:
class Context
{
public:
Context (DbeView *_dbev, Experiment *_exp = 0);
Context (DbeView *_dbev, Experiment *_exp, DataView *_dview, long _eventId);
~Context () { };
void
put (DataView *d, long id)
{
dview = d;
eventId = id;
};
void
put (Experiment *_exp)
{
exp = _exp;
};
Experiment *exp;
DataView *dview;
DbeView *dbev;
long eventId;
};
enum OpCode
{
OP_NONE,
OP_QWE,
OP_COLON,
OP_OR,
OP_AND,
OP_NOT,
OP_EQV,
OP_NEQV,
OP_BITOR,
OP_BITAND,
OP_BITXOR,
OP_BITNOT,
OP_EQ,
OP_NE,
OP_LT,
OP_GT,
OP_LE,
OP_GE,
OP_LS,
OP_RS,
OP_ADD,
OP_MINUS,
OP_MUL,
OP_DIV,
OP_REM,
OP_DEG,
OP_COMMA,
OP_IN,
OP_SOMEIN,
OP_ORDRIN,
OP_NUM,
OP_NAME,
OP_FUNC,
OP_FILE,
OP_JAVA,
OP_HASPROP,
OP_LIBRARY_IN,
OP_LIBRARY_SOMEIN,
OP_LIBRARY_ORDRIN
};
enum FuncCode
{
FUNC_FNAME,
FUNC_DNAME
};
enum JavaCode
{
JAVA_JGROUP,
JAVA_JPARENT
};
Expression (OpCode, const Expression*, const Expression* = 0);
Expression (OpCode, uint64_t);
Expression (const Expression &rhs);
Expression (const Expression *rhs);
Expression &operator= (const Expression &rhs);
~Expression ();
Expression *
copy () const
{
return new Expression (this);
}
void copy (const Expression *rhs);
uint64_t
eval (Context *ctx)
{
return bEval (ctx) ? v.val : 0;
};
bool
passes (Context *ctx)
{
return bEval (ctx) ? v.val != 0 : true;
};
bool
complete ()
{
return op == OP_NUM;
};
bool verifyObjectInExpr (Histable *obj);
Expression *
pEval (Context *ctx); // Partial evaluation to simplify expression
private:
struct Value
{
Value (uint64_t _val = 0, Value *_next = 0) : val (_val), next (_next)
{
fn = 0;
}
uint64_t val;
uint64_t fn;
Value *next;
};
bool getVal (int propId, Context *ctx);
bool bEval (Context *ctx);
bool hasLoadObject ();
OpCode op;
Value v;
Expression *arg0;
Expression *arg1;
};
#endif /* _EXPRESSION_H */
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