/*
* $Id: AssertStatement.java,v 1.13 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.codec.Code;
import anvil.codec.ConstantPool;
import anvil.codec.Source;
import anvil.parser.Tag;
import anvil.script.compiler.ByteCompiler;
import anvil.ErrorListener;
import anvil.script.Context;
import anvil.script.parser.TemplateParser;
import anvil.script.expression.Expression;
import java.io.IOException;
/**
* class AssertStatement
*
* @author: Jani Lehtim�ki
*/
public class AssertStatement extends Statement
{
private Expression _condition;
private String _image = "";
public AssertStatement(Statement parent, Location location, Expression condition, String image)
{
super(parent, location);
_condition = condition;
_image = image;
}
public int typeOf()
{
return Statement.ST_ASSERT;
}
public String name()
{
return "assert";
}
public void parse(TemplateParser parser, Tag tag)
{
}
public void check(ErrorListener context)
{
_condition.check(context);
}
public void compile(ByteCompiler context)
{
boolean enabled = getModuleStatement().getAddress().getZone().getAssert();
if (enabled) {
Code code = context.getCode();
ConstantPool pool = code.getPool();
code.getstatic(pool.addFieldRef(context.TYPE_MODULE, "_module", "Lanvil/script/compiler/CompiledModule;"));
code.invokevirtual(pool.addMethodRef(
"anvil/script/compiler/CompiledModule", "getAssert", "()Z"));
Source source = code.if_eq();
_condition.compile(context, Expression.GET_BOOLEAN);
code.if_ne(source);
context.location(getLocation());
code.aload_first();
code.astring(_image);
code.invokevirtual(pool.addMethodRef("anvil/script/Context", "AssertFailed",
"(Ljava/lang/String;)Lanvil/script/ScriptException;"));
code.athrow();
source.bind();
}
}
public boolean onTag(TemplateParser parser, int type, Tag tag)
{
return false;
}
}