JavaCompilerCore/src/de/dhbwstuttgart/bytecode/BytecodeGenMethod.java

package de.dhbwstuttgart.bytecode;

import java.util.HashMap;

import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;

import de.dhbwstuttgart.parser.SyntaxTreeGenerator.AssignToLocal;
import de.dhbwstuttgart.syntaxtree.Method;
import de.dhbwstuttgart.syntaxtree.StatementVisitor;
import de.dhbwstuttgart.syntaxtree.statement.ArgumentList;
import de.dhbwstuttgart.syntaxtree.statement.Assign;
import de.dhbwstuttgart.syntaxtree.statement.AssignToField;
import de.dhbwstuttgart.syntaxtree.statement.Binary;
import de.dhbwstuttgart.syntaxtree.statement.Block;
import de.dhbwstuttgart.syntaxtree.statement.CastExpr;
import de.dhbwstuttgart.syntaxtree.statement.DoStmt;
import de.dhbwstuttgart.syntaxtree.statement.EmptyStmt;
import de.dhbwstuttgart.syntaxtree.statement.FieldVar;
import de.dhbwstuttgart.syntaxtree.statement.ForStmt;
import de.dhbwstuttgart.syntaxtree.statement.IfStmt;
import de.dhbwstuttgart.syntaxtree.statement.InstanceOf;
import de.dhbwstuttgart.syntaxtree.statement.LambdaExpression;
import de.dhbwstuttgart.syntaxtree.statement.LocalVar;
import de.dhbwstuttgart.syntaxtree.statement.LocalVarDecl;
import de.dhbwstuttgart.syntaxtree.statement.MethodCall;
import de.dhbwstuttgart.syntaxtree.statement.NewArray;
import de.dhbwstuttgart.syntaxtree.statement.NewClass;
import de.dhbwstuttgart.syntaxtree.statement.Receiver;
import de.dhbwstuttgart.syntaxtree.statement.Return;
import de.dhbwstuttgart.syntaxtree.statement.ReturnVoid;
import de.dhbwstuttgart.syntaxtree.statement.Statement;
import de.dhbwstuttgart.syntaxtree.statement.StaticClassName;
import de.dhbwstuttgart.syntaxtree.statement.Super;
import de.dhbwstuttgart.syntaxtree.statement.SuperCall;
import de.dhbwstuttgart.syntaxtree.statement.This;
import de.dhbwstuttgart.syntaxtree.statement.UnaryPlus;
import de.dhbwstuttgart.syntaxtree.statement.WhileStmt;
import de.dhbwstuttgart.syntaxtree.statement.literal.Literal;
import de.dhbwstuttgart.syntaxtree.statement.literal.Null;

public class BytecodeGenMethod implements StatementVisitor{
	
	private Method m;
	private MethodVisitor mv;
	private HashMap<String, Integer> paramsAndLocals = new HashMap<>(); 
	
	public BytecodeGenMethod(Method m, MethodVisitor mv, HashMap<String, Integer> paramsAndLocals,
			boolean isConstructor) {
		if(isConstructor) {
		
//			mv.visitVarInsn(Opcodes.ALOAD, 0);
//			mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
		}
		this.m = m;
		this.mv = mv;
		this.paramsAndLocals = paramsAndLocals;
		this.m.block.accept(this);
		
	}
	
	@Override
	public void visit(Block block) {
		for(Statement stmt : block.getStatements()) {
			stmt.accept(this);
		}
	}
	
	@Override
	public void visit(SuperCall superCall) {
		superCall.receiver.accept(this);
		superCall.arglist.accept(this);
		mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/Object", superCall.name, "()V");
	}
	
	// ??
	@Override
	public void visit(LocalVar localVar) {

	}
	// ??
	@Override
	public void visit(LocalVarDecl localVarDecl) {
		// TODO Auto-generated method stub
		Integer i;
		
	}
	// int c = 5;???
	@Override
	public void visit(Assign assign) {
		assign.rightSide.accept(this);
//		int index = paramsAndLocals.get(assign.lefSide.getName());
//		mv.visitVarInsn(Opcodes.ASTORE, index);
	}
	
	@Override
	public void visit(Binary binary) {
		// TODO Auto-generated method stub
		
	}
	
	@Override
	public void visit(LambdaExpression lambdaExpression) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void visit(CastExpr castExpr) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void visit(EmptyStmt emptyStmt) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void visit(FieldVar fieldVar) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void visit(ForStmt forStmt) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void visit(IfStmt ifStmt) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void visit(InstanceOf instanceOf) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void visit(MethodCall methodCall) {
		
	}

	@Override
	public void visit(NewClass methodCall) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void visit(NewArray newArray) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void visit(Receiver receiver) {
		receiver.expr.accept(this);
	}

	@Override
	public void visit(Return aReturn) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void visit(ReturnVoid aReturn) {
		mv.visitInsn(Opcodes.RETURN);
	}

	@Override
	public void visit(StaticClassName staticClassName) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void visit(Super aSuper) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void visit(This aThis) {
		mv.visitVarInsn(Opcodes.ALOAD, 0);
	}

	@Override
	public void visit(UnaryPlus unaryPlus) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void visit(WhileStmt whileStmt) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void visit(DoStmt whileStmt) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void visit(Null aNull) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void visit(Literal literal) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void visit(ArgumentList argumentList) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void visit(AssignToField assignLeftSide) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void visit(AssignToLocal assignLeftSide) {
		// TODO Auto-generated method stub
		
	}

}