irtreeprettyprintinterp.java

用Java实现的编译器。把源代码编译成SPARC汇编程序

/**
*This class is used for expressions using the AND operation.
*This class extends the Exp abstract class
**/
package CatDecaf.Utilities.Debugger;
import CatDecaf.IR.*;
import CatDecaf.Utilities.*;
public class IRTreePrettyPrintInterp implements Visitor{

public static int tab;

	public IRTreePrettyPrintInterp(){
		tab=0;
	}

	private void printTab(){
		for (int i=0;i<tab;i++){
			System.out.print(" ");
		}
	}
	
	public void visit(Ir n){        } //abstract class
	public void visit(IrProg n){
		System.out.print("\n(IrProg: \n");
		if(n.fdDeclList_!=null)
			n.fdDeclList_.accept(this);
		if(n.mdDeclList_ == null) System.out.println("ERROR!!!!!!!!!!!!!!!!!!!!!!!!!!");
			n.mdDeclList_.accept(this);  //this should never be empty
		System.out.print(")\n");	
	}
	public void visit(FdDeclList n){ //not printing List classes
		while(n!= null)
		{	
			n.fdDecl_.accept(this);
			n = n.fdDeclList_;
		}
	}
	public void visit(FdDecl n){
		tab++;
		printTab();
		System.out.print("(FdDecl: ");
		if(n.glbVarList_==null) System.out.println("ERROR!!!!!!!!!!!!!!!");
		n.typ_.accept(this);
		n.glbVarList_.accept(this);
		printTab();
		System.out.print(")\n");
		tab--;
	}
	public void visit(GlbVar n){ } //abstract class
	public void visit(GlbVarArray n){
		System.out.print("(GlbVarArray:");
		n.identifier_.accept(this);
		n.ltrInt_.accept(this);
		System.out.print(")");	
	}	
	public void visit(GlbVarId n){
		System.out.print("(GlbVarId:");
		n.identifier_.accept(this);
		System.out.print(")");	
	}	
	public void visit(GlbVarList n){ //not printing List classes
		while(n!= null)
		{	
			n.glbVar_.accept(this);
			n = n.glbVarList_;
		}
	}	
	public void visit(Typ n){	}	//abstract class
	public void visit(TypInt n){
		printTab();
		System.out.print("(TypInt)");
	}
	public void visit(TypBool n){
		printTab();
		System.out.print("(TypBool)");
	}
	public void visit(TypVoid n){
		printTab();
		System.out.print("(TypVoid)");
	}
	public void visit(MdDeclList n){ //not printing List classes
		while(n!= null)
		{	
			n.mdDecl_.accept(this);
			n = n.mdDeclList_;
		}
	}	
	public void visit(MdDecl n){
		tab++;
		printTab();
		System.out.print("(MdDecl:");
		n.typ_.accept(this);
		n.identifier_.accept(this);
		if(n.mdParaList_ !=null){ //method parameter list could be NULL
			n.mdParaList_.accept(this);
		}
		System.out.print("\n");
		n.block_.accept(this);
		//System.out.print("\n");
		printTab();
		System.out.print(")\n");
		tab--;
	}	
	public void visit(MdParaList n){ //not printing List classes
		while(n!= null)
		{	
			n.mdPara_.accept(this);
			n = n.mdParaList_;
		}
	}	
	public void visit(MdPara n){
		System.out.print("(MdPara:");
		n.typ_.accept(this);
		n.identifier_.accept(this);
		System.out.print(")");	
	}	
	public void visit(Block n){
		tab++;
		printTab();
		System.out.print("(Block: \n");
		if(n.varDeclList_!=null) //var declaration list could be empty
			n.varDeclList_.accept(this);
		if(n.stmtList_!=null)//list can be empty
			n.stmtList_.accept(this);
		printTab();
		System.out.print(")\n");
		tab--;
	}
	public void visit(VarDecl n){
		tab++;
		printTab();
		System.out.print("(VarDecl:");
		n.typ_.accept(this);
		if(n.locVarList_==null) System.out.println("ERROR!!!!!!!!!!!!!!!");
		n.locVarList_.accept(this);
		//printTab();
		System.out.print(")\n");
		tab--;
	}	
	public void visit(VarDeclList n){ //not printing List classes
		while(n!= null)
		{	
			n.varDecl_.accept(this);
			n = n.varDeclList_;
		}
	}
	public void visit(LocVar n){
		System.out.print("(LocVar:");
		n.identifier_.accept(this);
		System.out.print(")");	
	}	
	public void visit(LocVarList n){ //not printing List classes
		while(n!= null)
		{	
			n.locVar_.accept(this);
			n = n.locVarList_;
		}
	}
	public void visit(StmtList n){ //not printing List classes
		while(n!= null)
		{	
			n.stmt_.accept(this);
			n = n.stmtList_;
		}
	}
	public void visit(Stmt n){	}	 //abstract class
	public void visit(StmtLocation n){
		tab++;
		printTab();
		System.out.print("(StmtLocation:");
		n.location_.accept(this);
		n.exp_.accept(this);
		//printTab();
		System.out.print(")\n");
		tab--;	
	}	
	public void visit(StmtBlock n){
		n.block_.accept(this);
	}	
	public void visit(StmtMdCall n){
		n.mdCall_.accept(this);
	}	
	public void visit(Location n){	}	//abstract class
	public void visit(LocationId n){
		printTab();
		System.out.print("(LocationId:");
		n.identifier_.accept(this);
		System.out.print(")");	
	}
	public void visit(LocationArray n){
		printTab();
		System.out.print("(LocationArray:");
		n.identifier_.accept(this);
		n.exp_.accept(this);
		System.out.print(")");	
	}
	public void visit(CallOutArgList n){ //not printing List classes
		while(n!= null)
		{	
			n.callOutArg_.accept(this);
			n = n.callOutArgList_;
		}
	}
	public void visit(CallOutArg n){	}	//abstract class
	public void visit(CallOutArgExp n){
		printTab();
		System.out.print("(CallOutArgExp:");
		n.exp_.accept(this);
		System.out.print(")");	
	}
	public void visit(CallOutArgStr n){
		printTab();
		System.out.print("(CallOutArgStr:");
		n.ltrString_.accept(this);
		System.out.print(")");	
	}
	public void visit(MdCall n){	}	//abstract class
	public void visit(MdCallOut n){
		tab++;
		printTab();
		System.out.print("(MdCallOut:");
		n.ltrString_.accept(this);
		if(n.callOutArgList_!=null) //could be empty
			n.callOutArgList_.accept(this);
		System.out.print(")\n");
		tab--;
	}
	public void visit(MdCallIn n){
		tab++;
		printTab();
		System.out.print("(MdCallIn:");
		n.identifier_.accept(this);
		if(n.expList_!=null) //could be empty
			n.expList_.accept(this);
		//printTab();
		System.out.print(")");
		tab--;
	}	
	public void visit(ExpList n){ //not printing List classes
		while(n!= null)
		{	
			n.exp_.accept(this);
			n = n.expList_;
		}
	}
	public void visit(StmtForLoop n){
		tab++;
		printTab();
		System.out.print("(StmtForLoop:");
		System.out.print("\n");
		printTab();
		n.identifier1_.accept(this);
		n.exp1_.accept(this);
		n.exp2_.accept(this);
		n.identifier3_.accept(this);
		n.exp3_.accept(this);	
		//System.out.print("\n");
		n.block_.accept(this);
		//System.out.print("\n");
		printTab();
		System.out.print(")\n");
		tab--;	
	}	
	public void visit(StmtIfElse n){
		tab++;
		printTab();
		System.out.print("(StmtIfElse:");
		//System.out.print("\n");
		//printTab();
		n.exp_.accept(this);
		System.out.print("\n");
		n.ifBlock_.accept(this);
		if(n.elseBlock_!=null) {  //else block could be empty
			System.out.print("\n");
			n.elseBlock_.accept(this);		
		}
		System.out.print("\n");
		printTab();
		System.out.print(")\n");
		tab--;	
	}	
	public void visit(StmtReturn n){
		tab++;
		printTab();
		System.out.print("(StmtReturn:");
		System.out.print("\n");
		printTab();
		if(n.exp_ != null) //could return nothing
			n.exp_.accept(this);	
		//System.out.print("\n");
		//printTab();
		System.out.print(")\n");
		tab--;
	}		
	public void visit(StmtWhileLoop n){
		tab++;
		printTab();
		System.out.print("(StmtWhileLoop:");
		System.out.print("\n");
		printTab();
		n.exp_.accept(this);
		n.block_.accept(this);		
		System.out.print("\n");
		printTab();
		System.out.print(")\n");
		tab--;	
	}			
   	public void visit(Literal n){}//abstract
	public void visit(Exp n){}//abstract
	public void visit(ExpPlus n){
		printTab();
		System.out.print(" ( ExpPlus: " );
		n.exp1_.accept(this);  
		//System.out.print(" + " );
		n.exp2_.accept(this);
		System.out.println(" ) " );
        }
	public void visit(ExpMinus n){
		printTab();
		System.out.print(" ( ExpMinus: " );
		n.exp1_.accept(this);
		//System.out.print(" - ");
		n.exp2_.accept(this);
		System.out.println(" ) " );
	}
	public void visit(ExpTimes n){
		printTab();
		System.out.print(" ( ExpTimes: " );
		n.exp1_.accept(this);
		//System.out.print(" * ");
		n.exp2_.accept(this);
		System.out.println(" ) " );
	}
	public void visit(ExpDivide n){
		printTab();
		System.out.print(" ( ExpDivide: " );
		n.exp1_.accept(this);
		//System.out.print(" / ");
		n.exp2_.accept(this);
		System.out.println(" ) " );
	}
	public void visit(ExpMod n){
		printTab();
		System.out.print(" ( ExpMod: " );
		n.exp1_.accept(this);
		//System.out.print(" % ");
		n.exp2_.accept(this);
		System.out.println(" ) " );
	}
	public void visit(ExpUMinus n){
		printTab();
		System.out.print(" ( ExpUMinus: " );
		//System.out.print(" -");
		n.exp_.accept(this);
		System.out.println(" ) " );
	}
	public void visit(ExpShiftLeft n){
		printTab();
		System.out.print(" ( ExpShiftLeft: " );
		n.exp1_.accept(this);
		//System.out.print(" << ");
		n.exp2_.accept(this);
		System.out.println(" ) " );
	}
	public void visit(ExpShiftRight n){
		printTab();
		System.out.print(" ( ExpShiftRight: " );
		n.exp1_.accept(this);
		//System.out.print(" >> ");
		n.exp2_.accept(this);
		System.out.println(" ) " );
	}
	public void visit(ExpLessThan n){
		printTab();
		System.out.print(" ( ExpLessThan: " );
		n.exp1_.accept(this);
		//System.out.print(" < ");
		n.exp2_.accept(this);
		System.out.println(" ) " );
	}
	public void visit(ExpGreaterThan n){
		printTab();
		System.out.print(" ( ExpGreaterThan: " );
		n.exp1_.accept(this);
		//System.out.print(" > ");
		n.exp2_.accept(this);
		System.out.println(" ) " );
	}
	public void visit(ExpLessThEql n){
		printTab();
		System.out.print(" ( ExpLessThEql: " );
		n.exp1_.accept(this);
		//System.out.print(" <= ");
		n.exp2_.accept(this);
		System.out.println(" ) " );
	}
	public void visit(ExpGreaterThEql n){
		printTab();
		System.out.print(" ( ExpGreaterThEql: " );
		n.exp1_.accept(this);
		//System.out.print(" >= ");
		n.exp2_.accept(this);
		System.out.println(" ) " );
	}
	public void visit(ExpEqualTo n){
		printTab();
		System.out.print(" ( ExpEqualTo: " );
		n.exp1_.accept(this);
		//System.out.print(" == ");
		n.exp2_.accept(this);
		System.out.println(" ) " );
	}
	public void visit(ExpNotEqualTo n){
		printTab();
		System.out.print(" ( ExpNotEqualTo: " );
		n.exp1_.accept(this);
		//System.out.print(" != ");
		n.exp2_.accept(this);
		System.out.println(" ) " );
	}
	public void visit(ExpAndOp n){
		printTab();
		System.out.print(" ( ExpAndOp: " );
		n.exp1_.accept(this);
		//System.out.print(" AND ");
		n.exp2_.accept(this);
		System.out.println(" ) " );
	}
	public void visit(ExpOrOp n){
		printTab();
		System.out.print(" ( ExpOrOp: " );
		n.exp1_.accept(this);
		//System.out.print(" OR ");
		n.exp2_.accept(this);
		System.out.println(" ) " );
	}
	public void visit(LtrBoolFalse n){
		System.out.print(" ( LtrBoolFalse: " );
		System.out.print(n.ltrBoolFalse_);
		System.out.print(" ) " );
	}
	public void visit(LtrBoolTrue n){
		System.out.print(" ( LtrBoolTrue: " );
		System.out.print(n.ltrBoolTrue_);
		System.out.print(" ) " );
	}
	public void visit(LtrChar n){
		System.out.print(" ( LtrChar: " );
		System.out.print(n.ltrChar_);
		System.out.print(" ) " );
	}
	public void visit(LtrInt n){
		System.out.print(" ( LtrInt: " );
		System.out.print(n.ltrInt_);
		System.out.print(" ) " );
	}
	public void visit(LtrString n){
		System.out.print(" ( LtrString: " );
		System.out.print(n.ltrString_);
		System.out.print(" ) " );
	}
	public void visit(Identifier n){
		System.out.print(" ( ID: " );
		System.out.print(n.identifier_);
		System.out.print(" ) " );
	}
}