X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/e557d3eac61c5ffc36c1c19930fd6f4ee4a15555..12e3584054c16ab255672c07af0ffc7bb220e8bc:/ChangeLog?ds=sidebyside diff --git a/ChangeLog b/ChangeLog index a1e77d44..18ce38b0 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,107 @@ +2006-10-21 Joel E. Denny + + Split the default %destructor/%printer into two kinds: <*> and . + Discussed starting at + . + * 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 + + Don't apply the default %destructor/%printer to an unreferenced midrule + value. Mentioned at + . + * src/symtab.c (dummy_symbol_get): Name all dummy symbols initially + like $@n instead of just @n so that the default %destructor/%printer + logic doesn't see them as user-defined symbols. + (symbol_is_dummy): Check for both forms of the name. + * src/reader.c (packgram): Remove the `$' from each midrule symbol + name for which the midrule value is referenced in any action. + * tests/actions.at (Default %printer and %destructor for mid-rule + values): New test. + * tests/regression.at (Rule Line Numbers, Web2c Report): Update output + for change to dummy symbol names. + +2006-10-20 Joel E. Denny + + Warn about unset midrule $$ if the corresponding $n is used. + * src/reader.c (symbol_should_be_used): Check midrule parent rule for + $n usage. + (packgram): Before invoking grammar_rule_check on any rule, make sure + all actions have already been scanned in order to set `used' flags. + Otherwise, checking that a midrule's $$ is set will not always work + properly because the midrule check must forward-reference the midrule's + parent rule. + * tests/input.at (AT_CHECK_UNUSED_VALUES): Extend to check the new + warning. + +2006-10-20 Joel E. Denny + + More improvements to the documentation of the prologue alternatives: + * NEWS (2.3a+): Mention the new `Prologue Alternatives' section in the + Bison manual. + * doc/bison.texinfo (Prologue Alternatives): Correct some errors. Add + some text to clarify the relative importance of the new directives and + to show how these directives may be viewed as code labels. + +2006-10-16 Joel E. Denny + + Similar to the recently removed %before-header, add %code-top as the + alternative to the pre-prologue. Mentioned at + . + Also, let the prologue alternatives appear in the grammar section. + * src/parse-gram.y (PERCENT_CODE_TOP): New token. + (prologue_declaration): Move the existing prologue alternatives to... + (grammar_declaration): ... here and add %code-top. + * src/scan-gram.l (PERCENT_CODE_TOP): New token. + + Clean up and extend documentation for the prologue alternatives. + * NEWS (2.3a+): Describe prologue alternatives. + * doc/bison.texinfo (Prologue): Move discussion of prologue + alternatives to... + (Prologue Alternatives): ... this new section, and extend it to discuss + all 4 directives in detail. + (Bison Symbols): Clean up discussion of prologue alternatives and add + %code-top. + 2006-10-16 Juan Manuel Guerrero DJGPP specific issues.