132 lines
3.0 KiB
Java
132 lines
3.0 KiB
Java
/*
|
|
* AppleCommander - An Apple ][ image utility.
|
|
* Copyright (C) 2003-2022 by Robert Greene
|
|
* robgreene at users.sourceforge.net
|
|
*
|
|
* 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 2 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, write to the Free Software Foundation, Inc.,
|
|
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
package com.webcodepro.applecommander.compiler;
|
|
|
|
/**
|
|
* Contains information referring to a BASIC variable.
|
|
* @author Rob
|
|
*/
|
|
public class Variable {
|
|
// FIXME: Should Variable have specific subclasses that handle the types appropriately?
|
|
public static final int TYPE_STRING = 1;
|
|
public static final int TYPE_INTEGER = 2;
|
|
public static final int TYPE_FLOAT = 3;
|
|
public static final int CONST_STRING = 4;
|
|
public static final int CONST_INTEGER = 5;
|
|
public static final int CONST_FLOAT = 6;
|
|
private String name;
|
|
private String value;
|
|
private int type;
|
|
|
|
/**
|
|
* Construct a Variable.
|
|
*/
|
|
public Variable(String name, int type, String value) {
|
|
this.name = name;
|
|
this.type = type;
|
|
this.value = value;
|
|
}
|
|
|
|
/**
|
|
* Answers with the variable name.
|
|
*/
|
|
public String getName() {
|
|
return name;
|
|
}
|
|
|
|
/**
|
|
* Answers with the variable type.
|
|
*/
|
|
public int getType() {
|
|
return type;
|
|
}
|
|
|
|
/**
|
|
* Answers true if this variable is string.
|
|
*/
|
|
public boolean isTypeString() {
|
|
return type == TYPE_STRING;
|
|
}
|
|
|
|
/**
|
|
* Answers true if this variable is integer.
|
|
*/
|
|
public boolean isTypeInteger() {
|
|
return type == TYPE_INTEGER;
|
|
}
|
|
|
|
/**
|
|
* Answers true if this variable is floating point.
|
|
*/
|
|
public boolean isTypeFloat() {
|
|
return type == TYPE_FLOAT;
|
|
}
|
|
|
|
/**
|
|
* Answers true if this is a variable.
|
|
*/
|
|
public boolean isVariableType() {
|
|
return isTypeFloat() || isTypeInteger() || isTypeString();
|
|
}
|
|
|
|
/**
|
|
* Answers true if this is a number.
|
|
*/
|
|
public boolean isNumber() {
|
|
return isConstantFloat() || isConstantInteger()
|
|
|| isTypeFloat() || isTypeInteger();
|
|
}
|
|
|
|
/**
|
|
* Answers true if this is a string constant.
|
|
*/
|
|
public boolean isConstantString() {
|
|
return type == CONST_STRING;
|
|
}
|
|
|
|
/**
|
|
* Answers true if this is an integer constant.
|
|
*/
|
|
public boolean isConstantInteger() {
|
|
return type == CONST_INTEGER;
|
|
}
|
|
|
|
/**
|
|
* Answers true if this is a floating point constant.
|
|
*/
|
|
public boolean isConstantFloat() {
|
|
return type == CONST_FLOAT;
|
|
}
|
|
|
|
/**
|
|
* Answers true if this is a constant value.
|
|
*/
|
|
public boolean isConstant() {
|
|
return isConstantString() || isConstantInteger() || isConstantFloat();
|
|
}
|
|
|
|
/**
|
|
* Return the value.
|
|
*/
|
|
public String getValue() {
|
|
return value;
|
|
}
|
|
}
|