3 * urgent EVAL/EVAL-WHEN/%COMPILE/DEFUN/DEFSTRUCT cleanup:
4 ** made inlining DEFUN inside MACROLET work again
5 ** (also, while working on INLINE anyway, it might be easy
6 to flush the old MAYBE-INLINE cruft entirely,
7 including e.g. on the man page)
9 ** non-x86 ports now pass irrat.pure.lisp
10 ** sparc and ppc now pass bit-vector.impure-cload.lisp
11 * faster bootstrapping (both make.sh and slam.sh)
12 ** added mechanisms for automatically finding dead code, and
13 used them to remove dead code
14 ** moved stuff from warm init into cold init where possible
15 (so that slam.sh will run faster and also just because
16 ideally everything would be in cold init)
17 ** profiled and tweaked
18 * fixed (TRACE :REPORT PROFILE ...) interface to profiling
19 * more EVAL/EVAL-WHEN/%COMPILE/DEFUN/DEFSTRUCT cleanup:
20 ** made %COMPILE understand magicality of DEFUN FOO
21 w.r.t. e.g. preexisting inlineness of FOO
22 ** used %COMPILE where COMPILE-TOP-LEVEL used to be used
23 ** removed now-redundant COMPILE-TOP-LEVEL and
24 FUNCTIONAL-KIND=:TOP-LEVEL stuff from the compiler
25 ** (ideally, but perhaps too hard, given what I've discovered
26 about the godawful internals of function debug names):
27 made FUNCTION-NAME logic work on closures, so that
28 various public functions like CL:PACKAGEP which
29 are now implemented as closures (because
30 they're structure slot accessors) won't be so
32 * outstanding embarrassments
33 ** cut-and-pasted DEF-BOOLEAN-ATTRIBUTE (maybe easier to fix
34 now that EVAL-WHEN works correctly..)
35 ** :IGNORE-ERRORS-P cruft in stems-and-flags.lisp-expr. (It's
36 reasonable to support this as a crutch when initially
37 bootstrapping from balky xc hosts with their own
38 idiosyncratic ideas of what merits FAILURE-P, but it's
39 embarrassing to have to use it when bootstrapping
41 ** weird double-loading (first in GENESIS, then in warm init)
42 of src/assembly/target/*.lisp stuff, and the associated
43 weirdness of the half-baked state (compiler almost but
44 not quite ready for prime time..) of the system after
46 * fixups now feasible because of pre7 changes
47 ** ANSIfied DECLAIM INLINE stuff (deprecating MAYBE-INLINE)
48 * miscellaneous simple refactoring
50 ** renamed %PRIMITIVE to %VOP
51 * These days ANSI C has inline functions, so..
52 ** redid many cpp macros as inline functions:
53 HeaderValue, Pointerp, CEILING, ALIGNED_SIZE,
54 GET_FREE_POINTER, SET_FREE_POINTER,
55 GET_GC_TRIGGER, SET_GC_TRIGGER, GetBSP, SetBSP,
56 os_trunc_foo(), os_round_up_foo()
57 ** removed various avoid-evaluating-C-macro-arg-twice
59 * Either get rid of or at least rework the fdefinition/encapsulation
60 system so that (SYMBOL-FUNCTION 'FOO) is identically equal to
62 =======================================================================
65 * refactored in preparation for moving CLOS into cold init and merging
66 SB-PCL:FOO with CL:FOO (for FOO=CLASS, FOO=CLASS-OF, etc.)
67 ** systematized support for MOP (new regression tests, maybe
68 new SB-MOP package..) to try to make sure things don't
69 get mislaid in the upcoming CLOS restructuring
70 ** extracted type system from SB-KERNEL into new SB-TYPE
72 ** reimplemented GENERIC-FUNCTION as a primitive object (or
73 maybe made SB-MOP:FUNCALLABLE-STANDARD-OBJECT the
74 primitive object, and then let GENERIC-FUNCTIONs
75 inherit from that) instead of structures with
76 :ALTERNATE-METACLASS and funcallableness. Now
77 FUNCALLABLE-INSTANCE can go away. (And now the new
78 funcallable primitive objects need to go into
79 collections like *FUN-HEADER-WIDETAGS* where
80 FUNCALLABLE-INSTANCE objects used to be.)
81 ** reimplemented CONDITIONs as primitive objects instead of
82 structures with :ALTERNATE-METACLASS. Now (between
83 this and the change to GENERIC-FUNCTIONs)
84 DEFSTRUCT :ALTERNATE-METACLASS can go away.
85 ** (maybe) Now INSTANCE_POINTER_LOWTAG can become just
86 STRUCTURE_POINTER_LOWTAG, and the concept of
87 SB-KERNEL:INSTANCE (including INSTANCEP,
88 (SPECIFIER-TYPE 'INSTANCE), etc.) can go away.
89 * moved CLOS into cold init, in order to allow CLOS to be used in the
90 implementation of the core system (e.g. the type system and the
91 compiler) and in order to support merger of CL:CLASS with
93 * (maybe) eliminated warm init altogether in favor of cold init
94 * (maybe, especially if warm init can be eliminated) rationalized
95 the build process, fixing miscellaneous pre-0.5.0 stuff that's
96 transparently not the right thing
97 ** removed separate build directories, now just building in
98 place with .sbclcoldfasl extensions
99 * (maybe) more refactoring in preparation for merging SB-PCL:FOO
100 into CL:FOO: reimplemented type system OO dispatch
101 (!DEFINE-TYPE-METHOD, etc.) in terms of CLOS OO dispatch
102 * merged SB-PCL:FOO into CL:FOO (and similarly CLASS-OF, etc.)
103 * added some automatic tests for basic binary compatibility, in hopes
104 that it might be practical to maintain binary compatibility
105 between minor maintenance releases on the stable branch (but no
106 promises, sorry, since I've never tried to do this before, and
107 have no idea how much of a pain this'll be)
108 ========================================================================
109 for 1.0 (fixes of lower priority which I'd nonetheless be embarrassed
110 to leave unfixed in 1.0):
111 * all too many BUGS entries and FIXMEs
112 =======================================================================
113 other priorities, no particular time:
115 * bug fixes, especially really annoying bugs (ANSI or not) and any
116 ANSI bugs (i.e. not just bugs in extras like the debugger or
117 "declarations are assertions", but violations of the standard)
118 * better communication with the outside world (scratching WHN's
119 personal itch): I don't want socket-level stuff so much as I
120 want RPC-level or higher (CORBA?) interfaces and (possibly
121 through RPC or CORBA) GUI support
122 =======================================================================
123 important but out of scope (for WHN, anyway: Patches from other people
124 are still welcome!) until after 1.0:
126 * sadly deteriorated support for ANSI-style block compilation
127 (static linking of DEFUNs within a single file or
128 WITH-COMPILATION-UNIT)
129 * various GC issues (exuberant cut-and-paste coding,
130 possibly dangerously over-conservative handling
131 of neighbors of function objects, general GC efficiency)
132 * package issues other than SB!TYPE, SB!MOP, and dead exported
134 * Any systematic effort to fix compiler consistency checks is
135 out of scope. (However, it still might be possible to
136 determine that some or all of them are hopelessly stale
138 =======================================================================
139 other known issues with no particular target date:
141 bugs listed on the man page
143 hundreds of FIXME notes in the sources from WHN
145 various other unfinished business from CMU CL and before, marked with
146 "XX" or "XXX" or "###" or "***" or "???" or "pfw" or "@@@@" or "zzzzz"
147 or probably also other codes that I haven't noticed or have forgotten.
149 (Things marked as KLUDGE are in general things which are ugly or
150 confusing, but that, for whatever reason, may stay that way
152 =======================================================================
153 "There's nothing an agnostic can't do as long as he doesn't know
154 whether he believes in anything or not."
157 "God grant me serenity to accept the code I cannot change, courage to
158 change the code I can, and wisdom to know the difference."
161 "Accumulation of half-understood design decisions eventually chokes a
162 program as a water weed chokes a canal. By refactoring you can ensure
163 that your full understanding of how the program should be designed is
164 always reflected in the program. As a water weed quickly spreads its
165 tendrils, partially understood design decisions quickly spread their
166 effects throughout your program. No one or two or even ten individual
167 actions will be enough to eradicate the problem."
168 -- Martin Fowler, in _Refactoring: Improving the Design of Existing
171 "I wish I didn't know now what I didn't know then."