/*
 * <copyright>
 *
 * Copyright (c) 2005-2008 Sven Efftinge and others.
 * All rights reserved.   This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Sven Efftinge - Initial API and implementation
 *
 * </copyright>
 */
package org.eclipse.gmf.internal.xpand.ast;

import java.text.MessageFormat;
import java.util.Set;

import org.eclipse.gmf.internal.xpand.expression.AnalysationIssue;
import org.eclipse.gmf.internal.xpand.expression.ast.Expression;
import org.eclipse.gmf.internal.xpand.model.XpandExecutionContext;

/**
 * @author Sven Efftinge
 */
public class ErrorStatement extends Statement {

    private final Expression message;

    public ErrorStatement(final int start, final int end, final int line, final int startOffset, final int endOffset, final Expression msg) {
        super(start, end, line, startOffset, endOffset);
        message = msg;
    }

    public Expression getMessage() {
        return message;
    }

    public void analyze(final XpandExecutionContext ctx, final Set<AnalysationIssue> issues) {
        message.analyze(ctx, issues);
    }

    @Override
    public void evaluateInternal(final XpandExecutionContext ctx) {
    	String result = String.valueOf(message.evaluate(ctx));
        System.err.println("ERROR:" + result); // FIXME syserr is not an error reporting!!!
        throw new RuntimeException(MessageFormat.format("Error in {0}:{1}: ", getFileName(), getLine(), result));
    }

}