Future/bison
1
0
Fork 0
mirror of https://git.savannah.gnu.org/git/bison.git synced 2026-03-11 13:23:04 +00:00
Code Issues Packages Projects Releases Wiki Activity

warnings: used but undeclared symbols are warnings

Browse Source 
We used to raise an error if a symbol appears only in a %printer or
%destructor.  Make it a warning.

* src/symtab.h (status): New enum.
(symbol): Replace the binary "declared" with the three-state "status".
Adjust dependencies.
* src/symtab.c (symbol_check_defined): Needed symbols are an error,
whereas "used" are simply warnings.
* src/symlist.c (symbol_list_destructor_set, symbol_list_printer): Set
symbol status to 'used' when associated to destructors or printers.
* input.at (Undeclared symbols used for a printer or destructor): New.
This commit is contained in:
Victor Santet
2012-06-19 16:14:55 +02:00
committed by Akim Demaille
parent dda2c1adba
commit b921d92fcb
6 changed files with 66 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/symlist.c
View File

@@ -232,6 +232,8 @@ symbol_list_destructor_set (symbol_list *node, char const *code, location loc)
{
case SYMLIST_SYMBOL:
symbol_destructor_set (node->content.sym, &destructor);
if (node->content.sym->status == needed)
node->content.sym->status = used;
break;
case SYMLIST_TYPE:
semantic_type_destructor_set (
@@ -256,6 +258,8 @@ symbol_list_printer_set (symbol_list *node, char const *code, location loc)
{
case SYMLIST_SYMBOL:
symbol_printer_set (node->content.sym, &printer);
if (node->content.sym->status == needed)
node->content.sym->status = used;
break;
case SYMLIST_TYPE:
semantic_type_printer_set (