Split the default %destructor/%printer into two kinds: <*> and <!>.

[bison.git] / ChangeLog

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+2006-10-21  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+       Split the default %destructor/%printer into two kinds: <*> and <!>.
+       Discussed starting at
+       <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00060.html>.
+       * NEWS (2.3a+): Mention.
+       * doc/bison.texinfo (Freeing Discarded Symbols): Document this and the
+       previous change today related to mid-rules.
+       (Bison Symbols): Remove %symbol-default and add <*> and <!>.
+       * src/parser-gram.y (PERCENT_SYMBOL_DEFAULT): Remove.
+       (TYPE_TAG_ANY): Add as <*>.
+       (TYPE_TAG_NONE): Add as <!>.
+       (generic_symlist_item): Remove RHS for %symbol-default and add RHS's
+       for <*> and <!>.
+       * src/scan-gram.l (PERCENT_SYMBOL_DEFAULT): Remove.
+       (TYPE_TAG_ANY, TYPE_TAG_NONE): Add.
+       * src/symlist.c (symbol_list_default_new): Split into tagged and
+       tagless versions.
+       (symbol_list_destructor_set, symbol_list_printer_set): Split
+       SYMLIST_DEFAULT case into SYMLIST_DEFAULT_TAGGED and
+       SYMLIST_DEFAULT_TAGLESS.
+       * src/symlist.h: Update symbol_list_default*_new prototypes.
+       (symbol_list.content_type): Split enum value SYMLIST_DEFAULT into
+       SYMLIST_DEFAULT_TAGGED and SYMLIST_DEFAULT_TAGLESS.
+       * src/symtab.c (default_destructor, default_destructor_location,
+       default_printer, default_printer_location): Split each into tagged and
+       tagless versions.
+       (symbol_destructor_get, symbol_destructor_location_get,
+       symbol_printer_get, symbol_printer_location_get): Implement tagged
+       default and tagless default cases.
+       (default_destructor_set, default_printer_set): Split each into tagged
+       and tagless versions.
+       * src/symtab.h: Update prototypes.
+       * tests/actions.at (Default %printer and %destructor): Rename to...
+       (Default tagless %printer and %destructor): ... this, and extend.
+       (Per-type %printer and %destructor): Rename to...
+       (Default tagged and per-type %printer and %destructor): ... this, and
+       extend.
+       (Default %printer and %destructor for user-defined end token): Extend.
+       (Default %printer and %destructor are not for error or $undefined):
+       Update.
+       (Default %printer and %destructor are not for $accept): Update.
+       (Default %printer and %destructor for mid-rule values): Extend.
+       * tests/input.at (Default %printer and %destructor redeclared): Extend.
+       (Unused values with default %destructor): Extend.
+
 2006-10-21  Joel E. Denny  <jdenny@ces.clemson.edu>
 
        Don't apply the default %destructor/%printer to an unreferenced midrule