grammar: preserve token declaration order

[bison.git] / src / symlist.c

diff --git a/src/symlist.c b/src/symlist.c
index b3500d2dbbe336b044536c67ac74907896dd4b54..13759e30f244112ad53f7d0ae102950dfb92a38c 100644 (file)
--- a/src/symlist.c
+++ b/src/symlist.c
@@ -1,6 +1,7 @@
 /* Lists of symbols for Bison
 
-   Copyright (C) 2002, 2005, 2006, 2007 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2005-2007, 2009-2013 Free Software Foundation,
+   Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -23,7 +24,6 @@
 #include "complain.h"
 #include "symlist.h"
 
-
 /*--------------------------------------.
 | Create a list containing SYM at LOC.  |
 `--------------------------------------*/
@@ -65,43 +65,11 @@ symbol_list_type_new (uniqstr type_name, location loc)
   symbol_list *res = xmalloc (sizeof *res);
 
   res->content_type = SYMLIST_TYPE;
-  res->content.type_name = type_name;
-  res->location = res->sym_loc = loc;
-  res->named_ref = NULL;
-  res->next = NULL;
+  res->content.sem_type = xmalloc (sizeof (semantic_type));
+  res->content.sem_type->tag = type_name;
+  res->content.sem_type->location = loc;
+  res->content.sem_type->status = undeclared;
 
-  return res;
-}
-
-
-/*----------------------------------------.
-| Create a list containing a <*> at LOC.  |
-`----------------------------------------*/
-
-symbol_list *
-symbol_list_default_tagged_new (location loc)
-{
-  symbol_list *res = xmalloc (sizeof *res);
-
-  res->content_type = SYMLIST_DEFAULT_TAGGED;
-  res->location = res->sym_loc = loc;
-  res->named_ref = NULL;
-  res->next = NULL;
-
-  return res;
-}
-
-
-/*---------------------------------------.
-| Create a list containing a <> at LOC.  |
-`---------------------------------------*/
-
-symbol_list *
-symbol_list_default_tagless_new (location loc)
-{
-  symbol_list *res = xmalloc (sizeof *res);
-
-  res->content_type = SYMLIST_DEFAULT_TAGLESS;
   res->location = res->sym_loc = loc;
   res->named_ref = NULL;
   res->next = NULL;
@@ -122,7 +90,7 @@ symbol_list_syms_print (const symbol_list *l, FILE *f)
       symbol_print (l->content.sym, f);
       fprintf (stderr, l->action_props.is_value_used ? " used" : " unused");
       if (l && l->content.sym)
-       fprintf (f, ", ");
+        fprintf (f, ", ");
     }
 }
 
@@ -139,6 +107,23 @@ symbol_list_prepend (symbol_list *list, symbol_list *node)
 }
 
 
+/*-------------------------.
+| Append NODE to the LIST. |
+`-------------------------*/
+
+symbol_list *
+symbol_list_append (symbol_list *list, symbol_list *node)
+{
+  if (!list)
+    return node;
+  symbol_list *next = list;
+  while (next->next)
+    next = next->next;
+  next->next = node;
+  return list;
+}
+
+
 /*-----------------------------------------------.
 | Free the LIST, but not the items it contains.  |
 `-----------------------------------------------*/
@@ -146,7 +131,15 @@ symbol_list_prepend (symbol_list *list, symbol_list *node)
 void
 symbol_list_free (symbol_list *list)
 {
-  LIST_FREE (symbol_list, list);
+  symbol_list *node, *next;
+  for (node = list; node; node = next)
+    {
+      next = node->next;
+      named_ref_free (node->named_ref);
+      if (node->content_type == SYMLIST_TYPE)
+        free (node->content.sem_type);
+      free (node);
+    }
 }
 
 
@@ -183,7 +176,7 @@ symbol_list_n_get (symbol_list *l, int n)
       l = l->next;
       if (l == NULL
           || (l->content_type == SYMLIST_SYMBOL && l->content.sym == NULL))
-       return NULL;
+        return NULL;
     }
 
   return l;
@@ -201,7 +194,7 @@ symbol_list_n_type_name_get (symbol_list *l, location loc, int n)
   l = symbol_list_n_get (l, n);
   if (!l)
     {
-      complain_at (loc, _("invalid $ value: $%d"), n);
+      complain (&loc, complaint, _("invalid $ value: $%d"), n);
       return NULL;
     }
   aver (l->content_type == SYMLIST_SYMBOL);
@@ -216,49 +209,23 @@ symbol_list_null (symbol_list *node)
 }
 
 void
-symbol_list_destructor_set (symbol_list *node, char const *code, location loc)
-{
-  code_props destructor;
-  code_props_symbol_action_init (&destructor, code, loc);
-  code_props_translate_code (&destructor);
-  switch (node->content_type)
-    {
-      case SYMLIST_SYMBOL:
-        symbol_destructor_set (node->content.sym, &destructor);
-        break;
-      case SYMLIST_TYPE:
-        semantic_type_destructor_set (
-          semantic_type_get (node->content.type_name), &destructor);
-        break;
-      case SYMLIST_DEFAULT_TAGGED:
-        default_tagged_destructor_set (&destructor);
-        break;
-      case SYMLIST_DEFAULT_TAGLESS:
-        default_tagless_destructor_set (&destructor);
-        break;
-    }
-}
-
-void
-symbol_list_printer_set (symbol_list *node, char const *code, location loc)
+symbol_list_code_props_set (symbol_list *node, code_props_type kind,
+                            code_props const *cprops)
 {
-  code_props printer;
-  code_props_symbol_action_init (&printer, code, loc);
-  code_props_translate_code (&printer);
   switch (node->content_type)
     {
-      case SYMLIST_SYMBOL:
-        symbol_printer_set (node->content.sym, &printer);
-        break;
-      case SYMLIST_TYPE:
-        semantic_type_printer_set (
-          semantic_type_get (node->content.type_name), &printer);
-        break;
-      case SYMLIST_DEFAULT_TAGGED:
-        default_tagged_printer_set (&printer);
-        break;
-      case SYMLIST_DEFAULT_TAGLESS:
-        default_tagless_printer_set (&printer);
-        break;
+    case SYMLIST_SYMBOL:
+      symbol_code_props_set (node->content.sym, kind, cprops);
+      if (node->content.sym->status == undeclared)
+        node->content.sym->status = used;
+      break;
+    case SYMLIST_TYPE:
+      semantic_type_code_props_set
+        (semantic_type_get (node->content.sem_type->tag,
+                            &node->content.sem_type->location),
+         kind, cprops);
+      if (node->content.sem_type->status == undeclared)
+        node->content.sem_type->status = used;
+      break;
     }
 }