Revert "Add support for an object-to-function chain with the parens in the content."
authorCarl Worth <cworth@cworth.org>
Fri, 28 May 2010 15:00:43 +0000 (08:00 -0700)
committerCarl Worth <cworth@cworth.org>
Fri, 28 May 2010 15:02:07 +0000 (08:02 -0700)
This reverts commit 7db2402a8009772a3f10d19cfc7f30be9ee79295

It doesn't revert the new test case from that commit, just the
extremely ugly second-pass implementation.

glcpp-parse.y

index 5b2d0d3..f4cb72a 100644 (file)
@@ -958,9 +958,9 @@ _glcpp_parser_evaluate_defined (glcpp_parser_t *parser,
  * needs further expansion.
  */
 static int
-_expand_token_onto (glcpp_parser_t *parser,
-                   token_t *token,
-                   token_list_t *result)
+_glcpp_parser_expand_token_onto (glcpp_parser_t *parser,
+                                token_t *token,
+                                token_list_t *result)
 {
        const char *identifier;
        macro_t *macro;
@@ -1117,10 +1117,10 @@ _arguments_parse (argument_list_t *arguments, token_node_t **node_ret)
 /* Prints the expansion of *node (consuming further tokens from the
  * list as necessary). Upon return *node will be the last consumed
  * node, such that further processing can continue with node->next. */
-static function_status_t
-_expand_function_onto (glcpp_parser_t *parser,
-                      token_node_t **node_ret,
-                      token_list_t *result)
+static void
+_glcpp_parser_expand_function_onto (glcpp_parser_t *parser,
+                                   token_node_t **node_ret,
+                                   token_list_t *result)
 {
        macro_t *macro;
        token_node_t *node;
@@ -1145,7 +1145,7 @@ _expand_function_onto (glcpp_parser_t *parser,
                break;
        case FUNCTION_NOT_A_FUNCTION:
                _token_list_append (result, node->token);
-               return FUNCTION_NOT_A_FUNCTION;
+               return;
        case FUNCTION_UNBALANCED_PARENTHESES:
                fprintf (stderr, "Error: Macro %s call has unbalanced parentheses\n",
                         identifier);
@@ -1154,7 +1154,7 @@ _expand_function_onto (glcpp_parser_t *parser,
 
        if (macro->replacements == NULL) {
                talloc_free (arguments);
-               return FUNCTION_STATUS_SUCCESS;
+               return;
        }
 
        if (! ((_argument_list_length (arguments) == 
@@ -1168,7 +1168,7 @@ _expand_function_onto (glcpp_parser_t *parser,
                         identifier,
                         _argument_list_length (arguments),
                         _string_list_length (macro->parameters));
-               exit (1);
+               return;
        }
 
        /* Perform argument substitution on the replacement list. */
@@ -1246,8 +1246,6 @@ _expand_function_onto (glcpp_parser_t *parser,
        _string_list_pop (parser->active);
 
        talloc_free (arguments);
-
-       return FUNCTION_STATUS_SUCCESS;
 }
 
 static void
@@ -1256,50 +1254,19 @@ _glcpp_parser_expand_token_list_onto (glcpp_parser_t *parser,
                                      token_list_t *result)
 {
        token_node_t *node;
-       token_list_t *intermediate, *list_orig = list;
-       int i, need_rescan = 0;
 
        if (list == NULL || list->head == NULL)
                return;
 
-       intermediate = _token_list_create (parser);
-
-       /* XXX: The two-pass expansion here is really ugly. The
-        * problem this is solving is that we can expand a macro into
-        * a function-like macro name, and then we need to recognize
-        * that as a function-like macro, but perhaps the parentheses
-        * and arguments aren't on the token list yet, (since they are
-        * in the actual content so they are part of what we are
-        * expanding.
-        *
-        * This ugly hack works, but is messy, fragile, and hard to
-        * maintain. I think a cleaner solution would separate the
-        * notions of expanding and appending and avoid this problem
-        * altogether.
-        */
-
-       for (i = 0; i < 2; i++) {
-               if (i == 1) {
-                       list = intermediate;
-                       intermediate = _token_list_create (parser);
-               }
-               for (node = list->head; node; node = node->next)
+       for (node = list->head; node; node = node->next)
+       {
+               if (_glcpp_parser_expand_token_onto (parser, node->token,
+                                                    result))
                {
-                       if (_expand_token_onto (parser, node->token,
-                                               intermediate))
-                       {       
-                               if (_expand_function_onto (parser, &node,
-                                                          intermediate))
-                               {
-                                       need_rescan = 1;
-                               }
-                       }
+                       _glcpp_parser_expand_function_onto (parser, &node,
+                                                           result);
                }
-               if (list != list_orig)
-                       talloc_free (list);
        }
-
-       _token_list_append_list (result, intermediate);
 }
 
 void