more nodes

git-svn-id: svn://anubis/jtlc/trunk@15 f5bc74b8-7b62-4e90-9214-7121d538519f

parser/parser.yy

@@ -93,6 +93,7 @@ static YYSTYPE parse_result;
 program: program_items {
         $$ = new ProgramNode();
         $$->addChildren($1);
+        parse_result = $$;
        }
        ;
 
@@ -241,24 +242,39 @@ type: primitive_type {
     }
     ;
 
-statement: expression SEMICOLON
-         | return_statement
+statement: expression SEMICOLON {
+            $$ = $1;
+         }
+         | return_statement {
+            $$ = $1;
+         }
          | c_statement {
             $$ = $1;
          }
          ;
 
-return_statement: RETURN expression SEMICOLON
+return_statement: RETURN expression SEMICOLON {
+                    $$ = new ReturnStatementNode();
+                    $$->addChild($2);
+                }
                 ;
 
-expression: assign_expr
+expression: assign_expr {
+            $$ = $1;
+          }
           ;
 
-assign_expr: lvalue ASSIGN expression
-           | lvalue DASSIGN expression
+assign_expr: lvalue ASSIGN expression {
+            $$ = new AssignExprNode();
+            $$->addChild($1);
+            $$->addChild($3);
+           }
            ;
 
-lvalue: IDENTIFIER
+lvalue: IDENTIFIER {
+        $$ = new LValueNode();
+        $$->addChild($1);
+      }
       ;
 
 c_statement: C LPAREN STRING_LITERAL RPAREN SEMICOLON {