// ino.module.NewClass.8642.package 
package de.dhbwstuttgart.syntaxtree.statement;
import java.util.ArrayList;
// ino.end
// ino.module.NewClass.8642.import 
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.List;

import org.apache.bcel.Constants;
import  org.apache.bcel.generic.ClassGen;
import org.apache.bcel.generic.InstructionConstants;

import org.apache.bcel.generic.InstructionList;
import org.apache.bcel.generic.ObjectType;


import de.dhbwstuttgart.typeinference.Menge;
import de.dhbwstuttgart.bytecode.ClassGenerator;
import de.dhbwstuttgart.logger.Logger;
import de.dhbwstuttgart.syntaxtree.Class;
import de.dhbwstuttgart.syntaxtree.ParameterList;
import de.dhbwstuttgart.syntaxtree.SyntaxTreeNode;
import de.dhbwstuttgart.syntaxtree.misc.UsedId;
import de.dhbwstuttgart.syntaxtree.type.FunN;
import de.dhbwstuttgart.syntaxtree.type.GenericTypeVar;
import de.dhbwstuttgart.syntaxtree.type.RefType;
import de.dhbwstuttgart.syntaxtree.type.Type;
import de.dhbwstuttgart.syntaxtree.type.TypePlaceholder;
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.TypeinferenceResultSet;
import de.dhbwstuttgart.typeinference.UndConstraint;
import de.dhbwstuttgart.typeinference.assumptions.ConstructorAssumption;
import de.dhbwstuttgart.typeinference.assumptions.TypeAssumptions;
import de.dhbwstuttgart.typeinference.exceptions.TypeinferenceException;




// ino.class.NewClass.25830.declaration 
public class NewClass extends Expr
// ino.end
// ino.class.NewClass.25830.body
{
    // ino.method.NewClass.25834.definition 
    public NewClass(int offset,int variableLength)
    // ino.end
    // ino.method.NewClass.25834.body 
    {
        super(offset,variableLength);
    }
    // ino.end

    // ino.attribute.arglist.25837.declaration 
    private ArgumentList arglist;
	private boolean isStatement = false;
	private List<Type> parameterList = new ArrayList<>();
    // ino.end
    // ino.attribute.parserlog.25840.declaration 
    protected static Logger parserlog = Logger.getLogger("parser");
    // ino.end
    
    
    // ino.method.getArgumentList.25843.definition 
    public ArgumentList getArgumentList()
    // ino.end
    // ino.method.getArgumentList.25843.body 
    {
       return this.arglist;
    }
    // ino.end

    // ino.method.get_Name.25846.definition 
    public String get_Name()
    // ino.end
    // ino.method.get_Name.25846.body 
    {
    return this.usedid.get_Name_1Element();
    }
    // ino.end

    // ino.method.set_UsedId.25849.definition 
    public void set_UsedId( UsedId t)
    // ino.end
    // ino.method.set_UsedId.25849.body 
    {
    this.usedid = t;
    }
    // ino.end
    
    // ino.method.set_ArgumentList.25855.definition 
    public void set_ArgumentList(ArgumentList al)
    // ino.end
    // ino.method.set_ArgumentList.25855.body 
    {
    this.arglist = al;
    }
    // ino.end

    // ino.method.toString.25867.defdescription type=javadoc
     /**
      * <br/>Author: Martin Pl�micke
      * @return
      */
     // ino.end
    // ino.method.toString.25867.definition 
    public String toString()
    // ino.end
    // ino.method.toString.25867.body 
    {
    	String ret = "NEW ";
    	Type thisType = getType();
    	if(thisType != null)ret += thisType.toString();
    	else ret += this.get_Name();
        return ret;
    }
    // ino.end
    
    // ino.method.wandleRefTypeAttributes2GenericAttributes.25870.definition 
    public void wandleRefTypeAttributes2GenericAttributes(Menge<Type> paralist, Menge<GenericTypeVar> genericMethodParameters)
    // ino.end
    // ino.method.wandleRefTypeAttributes2GenericAttributes.25870.body 
    {
    }
    // ino.end
    
	@Override
	public ConstraintsSet TYPEExpr(TypeAssumptions assumptions) {
		ConstraintsSet ret = new ConstraintsSet();
		UndConstraint callConstraints = new UndConstraint();
		
		int numArgs = 0;
		if(this.arglist != null)numArgs = this.arglist.size();
		ConstructorAssumption cA = assumptions.getConstructorAssumption(this.get_Name(), numArgs);
		if(cA == null)throw new TypeinferenceException("Der Konstruktor "+this.get_Name()+" mit "+numArgs+" Parametern ist nicht vorhanden.", this);
		
		for(int i=0; i<cA.getParaCount();i++){
			ret.add(this.arglist.expr.elementAt(i).TYPEExpr(assumptions));
			callConstraints.addConstraint( this.arglist.expr.elementAt(i).getType().TYPE(assumptions, this), cA.getParameterType(i).TYPE(assumptions, this));
		}
		//Die Parameterliste befindet sich in der UsedID:
		for(Type param : this.usedid.get_ParaList()){
			this.parameterList.add(param.TYPE(assumptions, this));
		}
		
		//Den Typ der Instruktion setzen:
		RefType refTypeToCheck;
		if(this.parameterList.size() == 0){
			refTypeToCheck = new RefType(this.get_Name(),this,0);
		}else{
			refTypeToCheck = new RefType(this.get_Name(),this.parameterList,this,0);
		}
		Type thisT = assumptions.checkType(refTypeToCheck, (SyntaxTreeNode)this);
		this.setType(thisT);
		
		return ret;
	}
	
	/**
	 * Spezifikation:
	 * 	TYPEStmt( Ass, stmt ) =
	 * 	let (stmt : rty, ConS) = TYPEExpr( Ass, stmt )
	 * 	in (stmt : Void, ConS)
	 */
	@Override
	public ConstraintsSet TYPEStmt(TypeAssumptions assumptions){
		ConstraintsSet ret = this.TYPEExpr(assumptions); //TypeExpr aufrufen
		this.setType(new Void(this,0)); //Typ des Statments auf Void setzen.
		this.isStatement = true;
		return ret;
	}

	@Override
	public JavaCodeResult printJavaCode(ResultSet resultSet) {
		JavaCodeResult ret = new JavaCodeResult("new ");
		ret.attach(this.get_Name());
		ret.attach("(");
		if(this.arglist!=null && this.arglist.expr != null){
			Iterator<Expr> it = this.arglist.expr.iterator();	
			while(it.hasNext()){
			Expr arg = it.next();
			ret.attach(arg.printJavaCode(resultSet));
			if(it.hasNext())ret.attach(", ");
			}
			//ret = ret.substring(0, ret.length()-2);
		}
		ret.attach(")");

		return ret;
	}
	@Override
	public Menge<SyntaxTreeNode> getChildren() {
		Menge<SyntaxTreeNode> ret = new Menge<SyntaxTreeNode>();
		if(this.arglist!=null)for(Expr e : this.arglist.expr){
			ret.add(e);	
		}
		return ret;
	}

	@Override
	public InstructionList genByteCode(ClassGenerator _cg, TypeinferenceResultSet rs) {
		InstructionList il = new InstructionList();
		//il.append(_cg.getInstructionFactory().createNew(get_Name()));
		il.append(_cg.getInstructionFactory().createNew(this.getType().getBytecodeType(_cg, rs).toString()));
		il.append(InstructionConstants.DUP);
		
		String signature = getType().getBytecodeSignature(_cg, rs);
		String description =  signature.substring(1, signature.length()-1);
		
		if(arglist!=null){
			il.append(arglist.generateBytecode(_cg, rs));
			il.append(_cg.getInstructionFactory().createInvoke(description, "<init>", 
					org.apache.bcel.generic.Type.VOID,
						this.arglist.getBytecodeTypeList(_cg, rs), Constants.INVOKESPECIAL));
		}else{
			il.append(_cg.getInstructionFactory().createInvoke(description, "<init>", 
					org.apache.bcel.generic.Type.VOID,
						new org.apache.bcel.generic.Type[]{}, Constants.INVOKESPECIAL));
		}
		if(this.isStatement){
	    	il.append(InstructionConstants.POP);
	    }
	    return il;
	}
	
	
}
// ino.end