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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __VAR__H__
#define __VAR__H__
#include "VarType.h"
#include <string>
#include <stdio.h>
class Var {
public:
// pointer data direction - from the client point of view.
typedef enum { POINTER_OUT = 0x1, POINTER_IN = 0x2, POINTER_INOUT = 0x3 } PointerDir;
Var() = default;
Var(const std::string & name,
const VarType * vartype,
const std::string & lenExpression,
PointerDir dir,
const std::string &packExpression,
const std::string &unpackExpression,
const std::string &writeExpression) :
m_name(name),
m_type(const_cast<VarType *>(vartype)),
m_lenExpression(lenExpression),
m_pointerDir(dir),
m_packExpression(packExpression),
m_unpackExpression(unpackExpression),
m_writeExpression(writeExpression)
{
}
void init(const std::string name, const VarType * vartype,
std::string lenExpression,
PointerDir dir,
std::string packExpression,
std::string unpackExpression,
std::string writeExpression) {
m_name = name;
m_type = vartype;
m_lenExpression = lenExpression;
m_packExpression = packExpression;
m_unpackExpression = unpackExpression;
m_writeExpression = writeExpression;
m_pointerDir = dir;
m_nullAllowed = false;
m_isLarge = false;
}
const std::string & name() const { return m_name; }
const VarType * type() const { return m_type; }
bool isPointer() const { return m_type->isPointer(); }
bool isVoid() const { return ((m_type->bytes() == 0) && (!m_type->isPointer())); }
const std::string & lenExpression() const { return m_lenExpression; }
const std::string & packExpression() const { return(m_packExpression); }
const std::string & unpackExpression() const { return(m_unpackExpression); }
const std::string & writeExpression() const { return(m_writeExpression); }
const std::string & paramCheckExpression() const { return m_paramCheckExpression; }
void setLenExpression(const std::string & lenExpression) { m_lenExpression = lenExpression; }
void setPackExpression(const std::string & packExpression) { m_packExpression = packExpression; }
void setUnpackExpression(const std::string & unpackExpression) { m_unpackExpression = unpackExpression; }
void setWriteExpression(const std::string & writeExpression) { m_writeExpression = writeExpression; }
void setParamCheckExpression(const std::string & paramCheckExpression) { m_paramCheckExpression = paramCheckExpression; }
void setPointerDir(PointerDir dir) { m_pointerDir = dir; }
PointerDir pointerDir() { return m_pointerDir; }
void setNullAllowed(bool state) { m_nullAllowed = state; }
void setIsLarge(bool state) { m_isLarge = state; }
void setDMA(bool state) { m_isDMA = state; }
bool nullAllowed() const { return m_nullAllowed; }
bool isLarge() const { return m_isLarge; }
bool isDMA() const { return m_isDMA; }
void printType(FILE *fp) { fprintf(fp, "%s", m_type->name().c_str()); }
void printTypeName(FILE *fp) { printType(fp); fprintf(fp, " %s", m_name.c_str()); }
private:
std::string m_name;
const VarType * m_type = nullptr;
bool m_pointer = false; // is this variable a pointer;
std::string m_lenExpression; // an expression to calcualte a pointer data size
PointerDir m_pointerDir = POINTER_IN;
bool m_nullAllowed = false;
bool m_isLarge = false;
bool m_isDMA = false;
std::string m_packExpression; // an expression to pack data into the stream
std::string m_unpackExpression; // an expression to unpack data that has arrived from the stream
std::string m_writeExpression; // an expression to write data into the stream
std::string m_paramCheckExpression; //an expression to check parameter value
};
#endif
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