Add native Windows binary for bison.

bison/src/bison/2.4.1/bison-2.4.1-src/src/symlist.c

+/* Lists of symbols for Bison
+
+   Copyright (C) 2002, 2005, 2006, 2007 Free Software Foundation, Inc.
+
+   This file is part of Bison, the GNU Compiler Compiler.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+#include "system.h"
+
+#include "complain.h"
+#include "symlist.h"
+
+
+/*--------------------------------------.
+| Create a list containing SYM at LOC.  |
+`--------------------------------------*/
+
+symbol_list *
+symbol_list_sym_new (symbol *sym, location loc)
+{
+  symbol_list *res = xmalloc (sizeof *res);
+
+  res->content_type = SYMLIST_SYMBOL;
+  res->content.sym = sym;
+  res->location = loc;
+
+  res->midrule = NULL;
+  res->midrule_parent_rule = NULL;
+  res->midrule_parent_rhs_index = 0;
+
+  code_props_none_init (&res->action_props);
+
+  res->ruleprec = NULL;
+  res->dprec = 0;
+  res->merger = 0;
+
+  res->next = NULL;
+
+  return res;
+}
+
+
+/*--------------------------------------------.
+| Create a list containing TYPE_NAME at LOC.  |
+`--------------------------------------------*/
+
+symbol_list *
+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 = loc;
+  res->next = NULL;
+
+  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 = loc;
+  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 = loc;
+  res->next = NULL;
+
+  return res;
+}
+
+
+/*-----------------------------------------------------------------------.
+| Print this list, for which every content_type must be SYMLIST_SYMBOL.  |
+`-----------------------------------------------------------------------*/
+
+void
+symbol_list_syms_print (const symbol_list *l, FILE *f)
+{
+  for (/* Nothing. */; l && l->content.sym; l = l->next)
+    {
+      symbol_print (l->content.sym, f);
+      fprintf (stderr, l->action_props.is_value_used ? " used" : " unused");
+      if (l && l->content.sym)
+        fprintf (f, ", ");
+    }
+}
+
+
+/*---------------------------.
+| Prepend NODE to the LIST.  |
+`---------------------------*/
+
+symbol_list *
+symbol_list_prepend (symbol_list *list, symbol_list *node)
+{
+  node->next = list;
+  return node;
+}
+
+
+/*-----------------------------------------------.
+| Free the LIST, but not the items it contains.  |
+`-----------------------------------------------*/
+
+void
+symbol_list_free (symbol_list *list)
+{
+  LIST_FREE (symbol_list, list);
+}
+
+
+/*--------------------.
+| Return its length.  |
+`--------------------*/
+
+int
+symbol_list_length (symbol_list const *l)
+{
+  int res = 0;
+  for (/* Nothing. */;
+       l && !(l->content_type == SYMLIST_SYMBOL && l->content.sym == NULL);
+       l = l->next)
+    ++res;
+  return res;
+}
+
+
+/*------------------------------.
+| Get item N in symbol list L.  |
+`------------------------------*/
+
+symbol_list *
+symbol_list_n_get (symbol_list *l, int n)
+{
+  int i;
+
+  if (n < 0)
+    return NULL;
+
+  for (i = 0; i < n; ++i)
+    {
+      l = l->next;
+      if (l == NULL
+          || (l->content_type == SYMLIST_SYMBOL && l->content.sym == NULL))
+        return NULL;
+    }
+
+  return l;
+}
+
+
+/*--------------------------------------------------------------.
+| Get the data type (alternative in the union) of the value for |
+| symbol N in symbol list L.                                    |
+`--------------------------------------------------------------*/
+
+uniqstr
+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);
+      return NULL;
+    }
+  aver (l->content_type == SYMLIST_SYMBOL);
+  return l->content.sym->type_name;
+}
+
+
+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)
+{
+  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;
+    }
+}