From: Carl Worth <cworth@cworth.org>
Date: Fri, 28 May 2010 15:00:43 +0000 (-0700)
Subject: Revert "Add support for an object-to-function chain with the parens in the content."
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=95ec433d59be234cf2695ae091cee4ace3314d21;p=mesa.git

Revert "Add support for an object-to-function chain with the parens in the content."

This reverts commit 7db2402a8009772a3f10d19cfc7f30be9ee79295

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

diff --git a/glcpp-parse.y b/glcpp-parse.y
index 5b2d0d3927a..f4cb72a133f 100644
--- a/glcpp-parse.y
+++ b/glcpp-parse.y
@@ -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