Cleanup

src/main/cup/chocopy/pa1/ChocoPy.cup

@@ -316,11 +316,11 @@ class_body_defs ::= class_body_defs:defs var_def:vd       {: RESULT = combine(de
 
 /* fun_def */
 fun_def ::= DEF:def identifier:id LPAR typed_vars:params RPAR ret_type:rt COLON:col NEWLINE INDENT fun_body_decs:fbd stmt_list:sl DEDENT       
-            {: TypeAnnotation _rt = rt;if(rt.getLocation()[0] == -2) _rt = new ClassType( colxright, colxright, "<None>");RESULT = new FuncDef(defxleft, getRight(sl), id, params, _rt, fbd, sl); :}
+            {: TypeAnnotation _rt = rt;if((rt instanceof ClassType) && ((ClassType)rt).className == "<None>") _rt = new ClassType( colxright, colxright, "<None>");RESULT = new FuncDef(defxleft, getRight(sl), id, params, _rt, fbd, sl); :}
             ;
 
 ret_type ::= ARROW type:t     {: RESULT= t; :}
-          |                   {: RESULT= new ClassType(new ComplexSymbolFactory.Location(-2,-1), new ComplexSymbolFactory.Location(-1,-1),"<None>"); :}
+          |                   {: RESULT= new ClassType(null, null,"<None>"); :}
           ;
 
 typed_vars ::= typed_var:tv                                 {: RESULT= single(tv); :}
@@ -440,17 +440,16 @@ expr_list ::= expr:e                                      {: RESULT = single(e);
             |                                             {: RESULT = new ArrayList<Expr>(); :}
             ;
 
-
+/* bin_op */ //We may still be able to use bin_op, so I left it here.
-/* bin_op */
 bin_op ::= PLUS:a                                           {: RESULT = new StringLiteral(axleft, axright, "+"); :}
           | MINUS:a                                         {: RESULT = new StringLiteral(axleft, axright, "-"); :}
           | MUL:a                                           {: RESULT = new StringLiteral(axleft, axright, "*"); :}
-          | DIV:a                                           {: RESULT = new StringLiteral(axleft, axright, "/"); :} 
+          | DIV:a                                           {: RESULT = new StringLiteral(axleft, axright, "//"); :}  //Section 2.6.3 in chocopy language reference
           | MOD:a                                           {: RESULT = new StringLiteral(axleft, axright, "%"); :} 
           ;
 
 
-/* comp_op */
+/* comp_op */ //this might also need some change in order not to break left associativity
 comp_op ::= EQUAL:a                                         {: RESULT = new StringLiteral(axleft, axright, "=="); :} 
           | NEQ:a                                           {: RESULT = new StringLiteral(axleft, axright, "!="); :} 
           | LEQ:a                                           {: RESULT = new StringLiteral(axleft, axright, "<="); :} 

src/main/jflex/chocopy/pa1/ChocoPy.jflex

@@ -46,7 +46,6 @@ import java.util.ArrayList;
     /** Return a terminal symbol of syntactic category TYPE and semantic
      *  value VALUE at the current source location. */
     private Symbol symbol(int type, Object value) {
-        //System.out.println(yytext() + ChocoPyTokens.terminalNames[type]);
         return symbolFactory.newSymbol(ChocoPyTokens.terminalNames[type], type,
             new ComplexSymbolFactory.Location(yyline + 1, yycolumn + 1),
             new ComplexSymbolFactory.Location(yyline + 1,yycolumn + yylength()),
@@ -136,7 +135,6 @@ if True:
           AFTER state.
           */ 
           pop();
-          //System.out.println("dedent");
           return symbol(ChocoPyTokens.DEDENT, currIndent);
       }
       /*Otherwise, we will start dealing with the rest 
@@ -149,7 +147,6 @@ if True:
           current level should have, start a new level which will have 
           `currIndent' indents.
           */
-          //System.out.println("indent");
 
           push(currIndent);
           return symbol(ChocoPyTokens.INDENT, currIndent);