diff options
Diffstat (limited to 'Todo')
| -rw-r--r-- | Todo | 23 |
1 files changed, 8 insertions, 15 deletions
@@ -8,10 +8,11 @@ Tie Modules ShiftSplice Defines shift et al in terms of splice method Would be nice to have - pack "(stuff)*", "(stuff)4", ... + pack "(stuff)*", "(stuff)?", "(stuff)+", "(stuff)4", ... contiguous bitfields in pack/unpack lexperl - bundled perl preprocessor + bundled perl preprocessor/macro facility + this would solve many of the syntactic nice-to-haves use posix calls internally where possible gettimeofday (possibly best left for a module?) format BOTTOM @@ -21,34 +22,26 @@ Would be nice to have support in perlmain to rerun debugger regression tests using __DIE__ hook lexically scoped functions: my sub foo { ... } - lvalue functions - wantlvalue? more generalized want()/caller()? + wantlvalue? more generalized want()/caller()? named prototypes: sub foo ($foo, @bar) { ... } ? regression/sanity tests for suidperl iterators/lazy evaluation/continuations/first/ first_defined/short-circuiting grep/?? This is a very thorny and hotly debated subject, tread carefully and do your homework first - full 64 bit support (i.e. "long long"). Things to consider: - how to store/retrieve 32+ integers into/from Perl scalars? - 32+ constants in Perl code? (non-portable!) - 32+ arguments/return values to/from system calls? (seek et al) - 32+ bit ops (&|^~, currently explicitly disabled) generalise Errno way of extracting cpp symbols and use that in - Errno and Fcntl (ExtUtils::CppSymbol?) + Errno, Fcntl, POSIX (ExtUtils::CppSymbol?) the _r-problem: for all the {set,get,end}*() system database calls (and a couple more: readdir, *rand*, crypt, *time, tmpnam) there are in many systems the _r versions to be used in re-entrant (=multithreaded) code Icky things: the _r API is not standardized and the _r-forms require per-thread data to store their state - memory profiler: turn malloc.c:Perl_dump_mstats() into + memory profiler: turn malloc.c:Perl_get_mstats() into an extension (Devel::MProf?) that would return the malloc stats in a nice Perl datastructure (also a simple interface to return just the grand total would be good) - Unicode: [=bar=], combining characters equivalence - (U+4001 + U+0308 should be equal to U+00C4, in other words - A+diaereres should equal Ä), Unicode collation + a pragma to make << and >> to shit bitvectors instead of numbers Possible pragmas debugger @@ -58,12 +51,12 @@ Optimizations constant function cache switch structures foreach(reverse...) - optimize away constant split at compile time (a la qw[f o o]) cache eval tree (unless lexical outer scope used (mark in &compiling?)) rcatmaybe shrink opcode tables via multiple implementations selected in peep cache hash value? (Not a win, according to Guido) optimize away @_ where possible + tail recursion removal "one pass" global destruction rewrite regexp parser for better integrated optimization LRU cache of regexp: foreach $pat (@pats) { foo() if /$pat/ } |