JavaPatternMatching/src/de/dhbwstuttgart/syntaxtree/statement/SuperCall.java

// ino.module.This.8654.package 
package de.dhbwstuttgart.syntaxtree.statement;
// ino.end
// ino.module.This.8654.import 
import java.util.Hashtable;

import org.apache.bcel.Constants;
import org.apache.bcel.generic.ClassGen;
import org.apache.bcel.generic.InstructionFactory;
import org.apache.bcel.generic.InstructionHandle;
import org.apache.bcel.generic.InstructionList;

import de.dhbwstuttgart.typeinference.Menge;
import de.dhbwstuttgart.logger.Logger;
import de.dhbwstuttgart.myexception.CTypeReconstructionException;
import de.dhbwstuttgart.myexception.JVMCodeException;
import de.dhbwstuttgart.myexception.SCStatementException;
import de.dhbwstuttgart.syntaxtree.Class;
import de.dhbwstuttgart.syntaxtree.Constructor;
import de.dhbwstuttgart.syntaxtree.SyntaxTreeNode;
import de.dhbwstuttgart.syntaxtree.misc.ConstructorCall;
import de.dhbwstuttgart.syntaxtree.misc.UsedId;
import de.dhbwstuttgart.syntaxtree.type.GenericTypeVar;
import de.dhbwstuttgart.syntaxtree.type.RefType;
import de.dhbwstuttgart.syntaxtree.type.Type;
import de.dhbwstuttgart.syntaxtree.type.Void;
import de.dhbwstuttgart.typeinference.ConstraintsSet;
import de.dhbwstuttgart.typeinference.JavaCodeResult;
import de.dhbwstuttgart.typeinference.ResultSet;
import de.dhbwstuttgart.typeinference.assumptions.ConstructorAssumption;
import de.dhbwstuttgart.typeinference.assumptions.TypeAssumptions;
import de.dhbwstuttgart.typeinference.exceptions.TypeinferenceException;
import de.dhbwstuttgart.typeinference.unify.CSubstitutionSet;



public class SuperCall extends ThisCall
{
    public SuperCall(int offset,int variableLength)
    {
        super(offset,variableLength);
    }

    public SuperCall(SyntaxTreeNode parent){
    	this(0,0);
    	this.parent = parent;
    }
    
	@Override
	public ConstraintsSet TYPEExpr(TypeAssumptions assumptions) {
		throw new TypeinferenceException("super(...)-Aufruf kann nicht als Ausdruck verwendet werden",this);
	}

	/**
	 * This kann auch als Konstruktoraufruf in einem Konstruktor-Block vorkommen.
	 */
    @Override
    public ConstraintsSet TYPEStmt(TypeAssumptions assumptions) {
    	String className = this.getParentClass().getSuperClass().getName().toString();
    	ConstraintsSet ret = new ConstraintsSet();
    	this.setType(new Void(this,this.getOffset()));
    	//Kontrollieren, dass sich this(...) in einem Konstruktor und dort als erstes Statement befindet:
    	SyntaxTreeNode p = this.getGTVDeclarationContext();
    	if(p instanceof Constructor &&
    			((Constructor)p).get_Block().statements.firstElement().equals(this)){
    		//Constraints generieren:
    		
    		MethodCall constructorCall = new ConstructorCall(new Receiver(new This(this)), className, arglist, this.getOffset());
    		ret.add(constructorCall.TYPEStmt(assumptions));
    		return ret;
    	}else{
    		//Ansonsten Fehler ausgeben:
        	throw new TypeinferenceException("super()-Aufruf hier nicht möglich", this);
    	}
	}

	public String toString()
    {
        //return receiver/*.toString()*/ + " " + usedid.toString();
    	return "(" + "super" +"(" + this.getArgumentList() + "))"; 
    }
    
	@Override
	public JavaCodeResult printJavaCode(ResultSet resultSet) {
		String argList = "";
		if(this.getArgumentList() != null)argList = this.getArgumentList().printJavaCode(resultSet).getJavaCode();
		return new JavaCodeResult("super("+argList+")");
	}

	@Override
	public InstructionList genByteCode(ClassGen cg) {
		InstructionFactory _factory = new InstructionFactory(cg, cg.getConstantPool());
		InstructionList il = new InstructionList();
		Type superClass = this.getParentClass().getSuperClass();
		//Instructionhandle dynamisch
		InstructionHandle ih_0 = il.append(_factory.createLoad(org.apache.bcel.generic.Type.OBJECT, 0)); 
	    il.append(_factory.createInvoke(superClass.getName().toString(), "<init>", org.apache.bcel.generic.Type.VOID, org.apache.bcel.generic.Type.NO_ARGS, Constants.INVOKESPECIAL));
	    InstructionHandle ih_4 = il.append(_factory.createReturn(org.apache.bcel.generic.Type.VOID)); 
		
	    return il;
	}	
	
}