// ino.module.InstVar.8634.package 
package de.dhbwstuttgart.syntaxtree.statement;
// ino.end
// ino.module.InstVar.8634.import 
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.Vector;
import org.apache.log4j.Logger;

import de.dhbwstuttgart.bytecode.ClassFile;
import de.dhbwstuttgart.bytecode.CodeAttribute;
import de.dhbwstuttgart.bytecode.JVMCode;
import de.dhbwstuttgart.myexception.CTypeReconstructionException;
import de.dhbwstuttgart.myexception.JVMCodeException;
import de.dhbwstuttgart.syntaxtree.Class;
import de.dhbwstuttgart.syntaxtree.SyntaxTreeNode;
import de.dhbwstuttgart.syntaxtree.misc.UsedId;
import de.dhbwstuttgart.syntaxtree.type.GenericTypeVar;
import de.dhbwstuttgart.syntaxtree.type.Pair;
import de.dhbwstuttgart.syntaxtree.type.RefType;
import de.dhbwstuttgart.syntaxtree.type.Type;
import de.dhbwstuttgart.syntaxtree.type.TypePlaceholder;
import de.dhbwstuttgart.typeinference.ConstraintsSet;
import de.dhbwstuttgart.typeinference.FreshTypeVariable;
import de.dhbwstuttgart.typeinference.JavaCodeResult;
import de.dhbwstuttgart.typeinference.OderConstraint;
import de.dhbwstuttgart.typeinference.ResultSet;
import de.dhbwstuttgart.typeinference.TypeinferenceResultSet;
import de.dhbwstuttgart.typeinference.UndConstraint;
import de.dhbwstuttgart.typeinference.assumptions.FieldAssumption;
import de.dhbwstuttgart.typeinference.assumptions.TypeAssumptions;
import de.dhbwstuttgart.typeinference.unify.Unify;




// ino.class.InstVar.25392.declaration 
public class InstVar extends Expr
// ino.end
// ino.class.InstVar.25392.body
{
    // ino.attribute.expr.25396.declaration 
    private Expr expr;
    // ino.end
    // ino.attribute.usedid.25399.declaration 
    private UsedId usedid;
    // ino.end
    // ino.attribute.type.25402.declaration 
    protected String type;  //???? BRAUCHT MAN DEN???
    // ino.end
    // ino.attribute.parserlog.25405.declaration 
    protected static Logger parserlog = Logger.getLogger("parser");
    // ino.end
    
    // ino.method.InstVar.25408.definition 
    public InstVar(Expr e, String n, int offset)
    // ino.end
    // ino.method.InstVar.25408.body 
    {
        super(offset,n.length());
        expr = e;
        usedid = new UsedId(getOffset());
        usedid.set_Name(n);
    }
    // ino.end
    
    // ino.method.InstVar.25411.definition 
    public InstVar(String n, String t, int offset)
    // ino.end
    // ino.method.InstVar.25411.body 
    {
        super(offset,n.length());
        usedid = new UsedId(getOffset());
        usedid.set_Name(n);
        type = t;
    }
    // ino.end
  
    // ino.method.InstVar.25414.defdescription type=javadoc
    /**
     * macht aus einem UsedId mit einem Vector von Strings eine InstVar
     * <br/>Author: Martin Pl�micke PL 05-08-17
     * @param ui
     * @return
     */
    // ino.end
    // ino.method.InstVar.25414.definition 
    public InstVar(UsedId ui, int offset,int variableLength)
    // ino.end
    // ino.method.InstVar.25414.body 
    {
        super(offset,variableLength);
        Iterator namen = ui.get_Name().iterator();
        LocalOrFieldVar innerLOFV = new LocalOrFieldVar((String)namen.next(),getOffset());
        //innerLOFV.setType(TypePlaceholder.fresh(this));
        InstVar INSTVA = new InstVar(innerLOFV, (String)namen.next(),offset);
        //INSTVA.setType(TypePlaceholder.fresh(this));
        while(namen.hasNext()) {
        INSTVA = new InstVar(INSTVA, (String)namen.next(),offset);
        //INSTVA.setType(TypePlaceholder.fresh(this));
        }
    expr = INSTVA.expr;
    usedid = INSTVA.usedid;
    }
    // ino.end

    @Override
	public void parserPostProcessing(SyntaxTreeNode parent) {
		super.parserPostProcessing(parent);
		if(this.getType()==null)this.set_Type(TypePlaceholder.fresh(this));
	}

	// ino.method.sc_check.25417.definition 
    public void sc_check(Vector<Class> classname, Hashtable ch, Hashtable<String, String> bh, boolean ext, Hashtable parach, Hashtable<String, Hashtable> parabh)
    // ino.end
    // ino.method.sc_check.25417.body 
    {
        if(ext)
            parserlog.debug("                    ---InstVar---");
        Vector name = usedid.get_Name();
        
        for(Enumeration el = name.elements(); el.hasMoreElements();)
        {
        String name1 = (String) el.nextElement();
        
        if(bh.containsKey(name1)) 
        {
            this.type = (String)bh.get(name1);  //type wird von Expr geerbt
            if(ext)
                parserlog.debug("Variable " + name1 + " im Block gefunden.");
        }
        else if(ch.containsKey(name1))
        {
            this.type = (String)ch.get(name1);
            if(ext)
                parserlog.debug("Variable " + name1 + " in Class gefunden.");
        }
        else 
            if(ext)
                parserlog.debug("Typfehler: -->InstVar.sc_check() "+ name1);
        }
    }
    // ino.end

    // ino.method.get_Name.25420.definition 
    public String get_Name()
    // ino.end
    // ino.method.get_Name.25420.body 
    {
    return this.usedid.get_Name_1Element();
    }
    // ino.end

    // ino.method.get_codegen_UsedId.25423.definition 
    public String get_codegen_UsedId()
    // ino.end
    // ino.method.get_codegen_UsedId.25423.body 
    { return usedid.get_codegen_UsedId(); }
    // ino.end

    // ino.method.codegen.25426.definition 
    public void codegen(ClassFile classfile, CodeAttribute code, Vector paralist)
    throws JVMCodeException
    // ino.end
    // ino.method.codegen.25426.body 
    {
    String instvar_name = usedid.get_codegen_UsedId();
    
    code.add_code(JVMCode.aload_0);
    code.add_code(JVMCode.getfield);
    code.add_code_short(classfile.add_field_ref(instvar_name, null, null));
    }
    // ino.end


    
  

    // ino.method.toString.25441.defdescription type=javadoc
    /**
     * <br/>Author: Martin Pl�micke
     * @return
     */
    // ino.end
    // ino.method.toString.25441.definition 
    public String toString()
    // ino.end
    // ino.method.toString.25441.body 
    {
        return super.type.toString() + " " + usedid.toString();
    }
    // ino.end
    
    // ino.method.wandleRefTypeAttributes2GenericAttributes.25444.definition 
    public void wandleRefTypeAttributes2GenericAttributes(Vector<Type> paralist, Vector<GenericTypeVar> genericMethodParameters)
    // ino.end
    // ino.method.wandleRefTypeAttributes2GenericAttributes.25444.body 
    {
    }
    // ino.end
    
	@Override
	public ConstraintsSet TYPEExpr(TypeAssumptions assumptions) {
		ConstraintsSet ret = new ConstraintsSet();
		if(this.expr == null){
			this.expr = new This(0, 0);
		}
		ret.add(expr.TYPEExpr(assumptions));
		this.setType(TypePlaceholder.fresh(this));
		OderConstraint oderConstraint = new OderConstraint();
		for(FieldAssumption fa : assumptions.getFieldVars(this.get_Name())){
			UndConstraint undConstraint = new UndConstraint();
			undConstraint.addConstraint(fa.getAssumedType(),this.getType());
			undConstraint.addConstraint(this.expr.getType(),fa.getParentClass().getType());
			oderConstraint.addConstraint(undConstraint);
		}
		ret.add(oderConstraint);
		return ret;
	}

	@Override
	public JavaCodeResult printJavaCode(ResultSet resultSet) {
		JavaCodeResult ret = new JavaCodeResult();
		if(this.expr != null)ret.attach(this.expr.printJavaCode(resultSet)).attach(".");
		return ret.attach(this.usedid.get_Name_1Element());
	}

	@Override
	public Vector<SyntaxTreeNode> getChildren() {
		Vector<SyntaxTreeNode> ret = new Vector<SyntaxTreeNode>();
		ret.add(this.expr);
		return ret;
	}
}
// ino.end