package de.dhbwstuttgart.syntaxtree.statement;

import de.dhbwstuttgart.exceptions.TypeinferenceException;
import de.dhbwstuttgart.syntaxtree.*;
import de.dhbwstuttgart.syntaxtree.type.RefType;
import de.dhbwstuttgart.syntaxtree.type.RefTypeOrTPHOrWildcardOrGeneric;
import de.dhbwstuttgart.typeinference.assumptions.TypeInferenceBlockInformation;
import de.dhbwstuttgart.typeinference.constraints.Constraint;
import de.dhbwstuttgart.typeinference.constraints.ConstraintSet;
import de.dhbwstuttgart.typeinference.assumptions.MethodAssumption;
import de.dhbwstuttgart.typeinference.constraints.Pair;
import de.dhbwstuttgart.typeinference.unify.model.PairOperator;
import org.antlr.v4.runtime.Token;

import de.dhbwstuttgart.syntaxtree.type.TypePlaceholder;

import java.util.*;


public class MethodCall extends Statement
{
    public final String name;
    public final Receiver receiver;
    
    public final ArgumentList arglist;
    
    public RefTypeOrTPHOrWildcardOrGeneric receiverType;
    
    //sind Tphs, repraesentieren im Resultset die Signatur der aufgerufenen Methoden, letztes Element ist der Returntyp
    public final ArrayList<RefTypeOrTPHOrWildcardOrGeneric> signature;  
    
    public MethodCall(RefTypeOrTPHOrWildcardOrGeneric retType, Receiver receiver, String methodName, ArgumentList argumentList, 
    		          RefTypeOrTPHOrWildcardOrGeneric receiverType, ArrayList<RefTypeOrTPHOrWildcardOrGeneric> signature, Token offset){
		super(retType,offset);
		this.arglist = argumentList;
        this.name = methodName;
        this.receiver = receiver;
        this.receiverType = receiverType;
        this.signature = signature;
        if (signature == null) throw new NullPointerException();
	}

    public List<RefTypeOrTPHOrWildcardOrGeneric> signatureArguments() {
        return signature.subList(0, signature.size() - 1);
    }


    @Override
    public void accept(StatementVisitor visitor) {
        visitor.visit(this);
    }

    public ArgumentList getArgumentList() {
        return arglist;
    }
}