plugins/org.eclipse.viatra2.gtasm.patternmatcher.impl/src/org/eclipse/viatra2/gtasm/patternmatcher/impl/patternmatcher/internal/callgraph/PatternReferenceNode.java

/*******************************************************************************
 * Copyright (c) 2004-2008 Akos Horvath, Gergely Varro and Daniel Varro
 * 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:
 *    Akos Horvath, Gergely Varro - initial API and implementation
 *******************************************************************************/

 package org.eclipse.viatra2.gtasm.patternmatcher.impl.patternmatcher.internal.callgraph;

import java.util.Collection;

import org.eclipse.viatra2.core.IModelManager;
import org.eclipse.viatra2.gtasm.patternmatcher.exceptions.PatternMatcherCompileTimeException;
import org.eclipse.viatra2.gtasm.patternmatcher.impl.patternmatcher.internal.callgraph.FlattenedPattern.Pair;
import org.eclipse.viatra2.gtasmmodel.gtasm.metamodel.asm.terms.GTPatternCall;
import org.eclipse.viatra2.gtasmmodel.gtasm.metamodel.gt.GTPattern;
import org.eclipse.viatra2.logger.Logger;


public class PatternReferenceNode extends OddLevelNode implements
        IFlattenedPatternElement {
    private PatternNode reference;
    
    PatternReferenceNode(BodyNode parent, GTPatternCall call, PatternNode reference) {
        super(parent,call);
        this.reference = reference;
    }
    
 //   PatternReferenceNode(PatternNode orig) {
 //       super(orig.parent,orig.pattern,orig.actualParameters);
 //       reference = orig;
 //   }
    
    protected PatternNode causesRecursion(GTPattern patternToTest) {
        return null;
    }

    @Override
    protected boolean traverse(PatternVariantIterator token) {
        assert index == 0 || index == 1;
        if (index == 1) {
            token.removeLast();
            index--;
            return false;
        } else {
            token.addLast(this);
            index++;
            return true;
        }
    }

    public void addLocalVariables(FlattenedPattern pattern) {
        return;
    }

    public void addFormalParameters(FlattenedPattern pattern) {
        return;
    }

	public void buildSearchGraph(FlattenedPattern result) throws PatternMatcherCompileTimeException {
		result.getSearchGraph().add(this, result);
	}

    public Collection<Pair> processVariableAssignments(FlattenedPattern pattern) throws PatternMatcherCompileTimeException {
   /* 	for (int i = 1; i < actualParameters.size(); i++) {
        	VariableReference refI = (VariableReference) actualParameters.get(i);
        	Integer indexI = pattern.getIndex(((BodyNode) parent).getVariableID(refI.getVariable()));
			for (int j = 0; j < i; j++) {
	        	VariableReference refJ = (VariableReference) actualParameters.get(j);
	        	Integer indexJ = pattern.getIndex(((BodyNode) parent).getVariableID(refJ.getVariable()));
	        	pattern.addExclusionPair(indexI, indexJ);
			}
		}*/
    	
    	return null;
    }

    public void processCheckExpressions(FlattenedPattern pattern, Logger logger) {
    	return;
    }

    public void processNegativeApplicationConditions(FlattenedPattern pattern, Logger logger, IModelManager manager) throws PatternMatcherCompileTimeException {
    	return;
    }
    
	public PatternNode getReference() {
		return reference;
	}

    public String toString() {
        return getClass().getSimpleName() + " " + getPattern().getName() + "_" + currentLocation;
    }

	public Collection<Pair> processInjectivityAssignments(FlattenedPattern pattern)
			throws PatternMatcherCompileTimeException {
		return null;
	}

	public void generateElementInjectivityConstraints (
			FlattenedPattern flattenedPattern,
			Collection<Pair> localAdditonalExclusionInjectivityPairs,
			Collection<Pair> localAdditionalInclusionInjectivityPairs) throws  PatternMatcherCompileTimeException {
		return;
	}


}