/* 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.
#include "complain.h"
#include "symlist.h"
-
/*--------------------------------------.
| Create a list containing SYM at LOC. |
`--------------------------------------*/
res->content_type = SYMLIST_SYMBOL;
res->content.sym = sym;
res->location = res->sym_loc = loc;
+ res->named_ref = NULL;
res->midrule = NULL;
res->midrule_parent_rule = NULL;
res->midrule_parent_rhs_index = 0;
- code_props_none_init (&res->action_props);
-
+ /* Members used for LHS only. */
res->ruleprec = NULL;
+ res->percent_empty_loc = empty_location;
+ code_props_none_init (&res->action_props);
res->dprec = 0;
+ res->dprec_location = empty_location;
res->merger = 0;
-
- res->named_ref = NULL;
+ res->merger_declaration_location = empty_location;
res->next = NULL;
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;
void
symbol_list_syms_print (const symbol_list *l, FILE *f)
{
+ char const *sep = "";
for (/* Nothing. */; l && l->content.sym; l = l->next)
{
+ fputs (sep, f);
+ fputs (l->content_type == SYMLIST_SYMBOL ? "symbol: "
+ : l->content_type == SYMLIST_TYPE ? "type: "
+ : "invalid content_type: ",
+ f);
symbol_print (l->content.sym, f);
- fprintf (stderr, l->action_props.is_value_used ? " used" : " unused");
- if (l && l->content.sym)
- fprintf (f, ", ");
+ fputs (l->action_props.is_value_used ? " used" : " unused", f);
+ sep = ", ";
}
}
}
+/*-------------------------.
+| 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. |
`-----------------------------------------------*/
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);
+ }
}
l = l->next;
if (l == NULL
|| (l->content_type == SYMLIST_SYMBOL && l->content.sym == NULL))
- return NULL;
+ return NULL;
}
return l;
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);
return l->content.sym->type_name;
}
-
-void
-symbol_list_destructor_set (symbol_list *node, char const *code, location loc)
+bool
+symbol_list_null (symbol_list *node)
{
- 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;
- }
+ return !node ||
+ (node->content_type == SYMLIST_SYMBOL && !(node->content.sym));
}
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;
}
}
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