attribute

src/parser.y

@@ -52,9 +52,9 @@
 %right ASSIGN PLUS_ASSIGN MINUS_ASSIGN MULTIPLY_ASSIGN DIVIDE_ASSIGN MODULO_ASSIGN
 %right BIT_AND_ASSIGN BIT_OR_ASSIGN BIT_XOR_ASSIGN LSHIFT_ASSIGN RSHIFT_ASSIGN
 
-// Add types for your grammar rules:
 %type <std::unique_ptr<Expr>> expr
 %type <std::unique_ptr<Stmt>> stmt
+%type <std::vector<std::unique_ptr<Expr>>> args
 %type <std::vector<std::unique_ptr<Stmt>>> stmt_list
 
 
@@ -84,10 +84,16 @@ expr:
                                 BinaryOperator(BinaryOperator::MUL),
                                 std::move($1), std::move($3)); }
     | L_PAREN expr R_PAREN {$$ = std::move($2); /* #todo: test for precedence*/}
-    | expr L_PAREN R_PAREN { $$ = std::make_unique<Call>(std::move($1), std::vector<std::unique_ptr<Expr>>());}
-
+    | expr L_PAREN args R_PAREN { $$ = std::make_unique<Call>(std::move($1), std::move($3));}
+    | expr DOT IDENTIFIER { $$ = std::make_unique<Attribute>(std::move($1), $3);}
     ;
 
+args:
+      /* empty */         { $$ = std::vector<std::unique_ptr<Expr>>(); }
+    | expr                { $$ = std::vector<std::unique_ptr<Expr>>(); 
+                            $$.push_back(std::move($1)); }
+    | args COMMA expr     { $1.push_back(std::move($3)); $$ = std::move($1); }
+    ;
 %%
 namespace yy {
     void parser::error(const std::string& msg)