~ chicken-core (chicken-5) b3e9c2317b02cd5683dcfd36872c642ad54062b1

commit b3e9c2317b02cd5683dcfd36872c642ad54062b1
Author:     unknown <felix@.(none)>
AuthorDate: Tue Oct 27 22:59:40 2009 +0100
Commit:     unknown <felix@.(none)>
CommitDate: Tue Oct 27 22:59:40 2009 +0100

    updated version to 4.2.3; removed TODO and cleaned up NEWS

diff --git a/TODO b/TODO
deleted file mode 100644
index 71d04352..00000000
--- a/TODO
+++ /dev/null
@@ -1,140 +0,0 @@
-TODO for chicken							-*- Outline -*-
-================
-
-
-* bugs
-
-** compiler
-*** pre-optimization 
-**** changes call-sites and makes them invalid for later pre-optimization
-*** check profiling (-profile vs. profile-declaration)
-**** this doesn't always seem to work, in particular with library units
-**** ##sys#finish-profile should always be invoked
-     is it in `exit'?
-*** when re-defining intrinsics, the compiler should warn and disable re-writes
-    add declaration to keep re-writes enabled for core library files
-*** -prologue, -epilogue, -prelude, -postlude should check for argument being directory 
-    (reported by Eduardo Cavazos)
-
-** expander
-*** expansion of r5rs_pitfall 4.2 incorrect
-    possibly due to a non-aliased implicit "begin" somewhere
-*** dirty-macros.scm loops when using `defile'
-    possibly due to unrenamed special forms
-*** extended lambda-lists refer to `optional' and `let-optionals[*]'
-    this will break, when these macros are renamed on import or not imported
-    at all
-**** a possible solution is to use internal forms, provided by the "scheme" module.
-*** need way to force generating module-registration code for standalone executables.
-
-** modules
-*** mark import-source (module) on plist of imported symbols and use in re-import warning
-    doesn't work that easily, try to find another solution
-*** DSSSL lambda-lists need imports of `chicken' module ("optional", "let-optionals", ...)
-**** should probably use internal aliases
-
-** libraries
-*** library/runtime: cyclic list checks for assq/assv/assoc/memq/memv/member
-    and C_i_list_tail
-*** finalizers on lexically ref'd data not working in interpreter
-    reported by Jim Ursetto
-    reverted original patch, see patches/finalizer-closures.diff
-
-** tools
-*** chicken-bug: SMTP servers not accessible (greylisting)
-
-
-* tasks
-
-** branches
-*** try to improve performance in lazy-gensyms
-    this *should* give better performance, but the extra handling of symbols
-    without name seems to be to expensive
-
-** module issues
-*** need a way to omit generating module registration without generating import lib
-    for example when compiling static version, where implib already exists
-*** code-duplication in compiler and evaluator for ##core#module
-*** "scheme" module does not include some special forms ("define-syntax", etc.)
-*** import-for-syntax imports value bindings into import-env
-    should actually be a distinct meta-import-env.
-    example: we need `(import-for-syntax chicken)' to have access to
-    `receive' in a procedural syntax definition.
-*** curried define performs expansion in empty se - problem?
-    (as comment in expand.scm indicated (##sys#register-export))
-*** check phase separation and module access
-**** see "expander" above
-*** consider adding support for unnamed modules
-
-** compiler
-*** (csc) generate object-files in /tmp (or TMPDIR)?
-
-** setup/install
-*** setup-download
-**** use "HTTP_PROXY"/"http_proxy" env. var
-**** handle redirects in http-fetch
-
-** library units
-*** read-mark list should be stored in read-table
-*** normalize-pathname: return short name on windows? (mingw/msvc)
-*** Use record-descriptors instead of symbols as 1st slot in structure objects?
-**** see Kon's proposal for new record-descriptors in "misc/Chicken Runtime Data Type Proposal"
-*** Weak locatives can probably be used to implement weak hash-tables (at least for some data)
-
-** syntax-error
-*** if ##sys#current-module is set, add name to error message?
-*** fluidly keep track of expanded forms (extend meaning of culprit) to pprint pruned expr on error
-
-** build
-*** need script to process import libraries for generating indices for doc.callcc.org
-    then tell Toby Butzon about it
-*** using "touch" with WINDOWS_SHELL won't work (need alternative) (mingw/non-msys build)
-*** extend scripts/guess-platforms.sh for more platforms
-
-** scrutiny
-*** add support for keyword arguments and check even length and available keywords
-
-
-* tests
-
-** optional longer run (env. var)
-*** syntax-rules-stress-test
-*** fully compiled ec-tests
-** 3-stage bootstrap with compiler-output comparison
-
-
-* optimizations
-
-** local mode could be enabled for all core libs
-   also could reduce performance, as it does for regex
-
-** global inline files for core units
-*** This would remove necessity for many simple re-write rules in c-platform.scm
-
-** self-recursion optimization
-   what MacScheme called "benchmark-mode" (assume self-calls are recursion)
-*** needs declaration or option, >= -O2
-
-** when inlining, consing arg-list with "list" may make get-keyword possibly foldable
-
-** compiler-support for get-keyword ?
-
-** lambda-fusion / "fuse-and-dispatch" (suggested by Alex Shinn)
-   convert groups of local lambdas referenced to only in operator-position into
-   looping lambda + dispatch (static variable can be used), otherwise similar to
-   a conditional
-
-** lazy gensyms (see "lazy-gensyms" branch)
-
-** handle optional args primitively 
-   for example, set to distinguished val (checking argc) on C level, core
-   primitive for checking this - should be quite simple, but llist processing
-   (decompose-lambda-list) will be more expensive and cumbersome.
-
-** pre-hashed symbols (extra symbol slot)
-   The memory usage should be acceptable, performance gain is hard to guess.
-   Some experiments indicate that hashing the string is cheaper than it appears,
-   but low-level hashtables should get the most of this (and thus speed up
-   the compiler)
-
-** The benchmarks are meaningless - find real ones.