X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/4af4348a3f5f6b5c4e537edd09f5fe9cf30e9eb6..2d32fc9fe2e648418f253405f0be19dc903bf8c9:/ChangeLog diff --git a/ChangeLog b/ChangeLog index ba6b25f4..b7cac251 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,87 @@ +2008-11-07 Akim Demaille + + Add "%define assert" to variants. + This is used to help the user catch cases where some value gets + ovewritten by a new one. This should not happen, as this will + probably leak. + + Unfortunately this uncovered a bug in the C++ parser itself: the + lookahead value was not destroyed between two calls to yylex. For + instance if the previous lookahead was a std::string, and then an int, + then the value of the std::string was correctly taken (i.e., the + lookahead was now an empty string), but std::string structure itself + was not reclaimed. + + This is now done in variant::build(other&) (which is used to take the + value of the lookahead): other is not only stolen from its value, it + is also destroyed. This incurs a new performance penalty of a few + percent, and union becomes faster again. + + * data/lalr1-fusion.cc (variant::build(other&)): Destroy other. + (b4_variant_if): New. + (variant::built): New. + Use it whereever the status of the variant changes. + * etc/bench.pl.in: Check the penalty of %define assert. + +2008-11-07 Akim Demaille + + Use "%define variant" in bench.pl. + * etc/bench.pl.in: No longer use the pseudo directive %variants, + just use %define variants. + +2008-11-07 Akim Demaille + + Regen. + * src/parse-gram.h, src/parse-gram.c: Regen. + +2008-11-04 Joel E. Denny + + Fix user actions without a trailing semicolon. + Reported by Sergei Steshenko at + . + * THANKS (Sergei Steshenko): Add. + * src/scan-code.l (SC_RULE_ACTION): Fix it. + * tests/regression.at (Fix user actions without a trailing semicolon): + New test case. + +2008-11-04 Akim Demaille + + Use b4_copyright_years. + * data/yacc.c (b4_copyright_years): New. + Fix its value according to the comments in the file. + Use it and undefine it. + +2008-11-04 Akim Demaille + + Formatting changes. + * data/lalr1-fusion.cc, src/parse-gram.y: here. + +2008-11-04 Akim Demaille + + Formatting changes. + * data/lalr1-fusion.cc: here. + +2008-11-04 Akim Demaille + + Use strict on bench.pl. + * etc/bench.pl.in (&run, &generate_grammar): New. + Rename the grammar generating functions for consistency. + Change the interface so that the list of benches to run is passed + as (optionless) arguments. + (&compile): Use &run. + +2008-11-04 Akim Demaille + + Remove spurious initial empty lines. + * data/glr.c, data/glr.cc, data/lalr1.cc, data/lalr1.java, + * data/yacc.c: End the @output lines with an @. + +2008-11-04 Akim Demaille + + Improve the display of sizes. + * etc/bench.p.in: Higher precision. + Sort by decreasing size. + 2008-11-04 Akim Demaille Don't memcpy C++ structures.