/*
* $Id: StaticVariableStatement.java,v 1.5 2002/09/16 08:05:06 jkl Exp $
*
* Copyright (c) 2002 Njet Communications Ltd. All Rights Reserved.
*
* Use is subject to license terms, as defined in
* Anvil Sofware License, Version 1.1. See LICENSE
* file, or http://njet.org/license-1.1.txt
*/
package anvil.script.statements;
import anvil.Location;
import anvil.core.Any;
import anvil.codec.ClassRoom;
import anvil.codec.ConstantPool;
import anvil.codec.Code;
import anvil.doc.Doc;
import anvil.script.StaticVariableType;
import anvil.script.Scope;
import anvil.script.compiler.ByteCompiler;
import anvil.script.expression.Expression;
import anvil.script.expression.AssignmentNode;
import anvil.script.expression.ConstantNode;
import anvil.script.expression.ExpressionList;
import anvil.script.expression.StaticVariableNode;
import java.io.IOException;
import java.lang.reflect.Field;
/**
* class StaticVariableStatement
*
* @author: Jani Lehtim�ki
*/
public class StaticVariableStatement extends VariableStatement implements StaticVariableType
{
protected Any _value;
public StaticVariableStatement(Location location, DefinitionStatement parent, String name, Expression expr, String document)
{
super(location, parent, name, expr, document);
}
public StaticVariableStatement(Location location, DefinitionStatement parent, String name, Expression expr, Doc document)
{
super(location, parent, name, expr, document);
}
public int getType()
{
return STATIC_VARIABLE;
}
public Any getValue()
{
if (_value == null) {
_value = Any.UNDEFINED;
if (hasConstantInitializer()) {
_value = _expression.eval();
}
}
return _value;
}
public boolean isStaticRegion()
{
return true;
}
public Expression createStaticInitializer()
{
Location location = _expression.getLocation();
AssignmentNode assignment = new AssignmentNode(location, 2);
assignment.setChild(0, new StaticVariableNode(this));
assignment.setChild(1, new ConstantNode(getValue()));
return new Expression(assignment, location);
}
public Expression createInitializer()
{
Location location = _expression.getLocation();
AssignmentNode assignment = new AssignmentNode(location, 2);
assignment.setChild(0, new StaticVariableNode(this));
assignment.setChild(1, _expression.getChild());
return new Expression(assignment, location);
}
public int getTypeRef(ConstantPool pool)
{
return pool.addFieldRef(_parent.getTypeRef(pool), "s_"+_name, "Lanvil/core/Any;");
}
public void compile(ByteCompiler context)
{
ClassRoom room = context.getClassRoom();
room.createField("s_"+_name, "Lanvil/core/Any;", context.ACC_PUBLIC|context.ACC_STATIC);
}
}