/[cmucl]/src/general-info/release-19a.txt
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Contents of /src/general-info/release-19a.txt

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Revision 1.67 - (show annotations)
Tue Jul 15 13:39:02 2003 UTC (10 years, 9 months ago) by gerd
Branch: MAIN
Changes since 1.66: +2 -0 lines
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	(DESTRUCTURING-BIND (X . Y) () ...) did not signal an error.
	Reported by Edi Weitz on cmucl-help.

	* src/code/defmacro.lisp (restify-dotted-lambda-list): New
	function.
	(parse-defmacro-lambda-list): Use it to tranform dotted
	lambda-list to undotted lambda-lists with &rest.  Remove
	special handling of dotted lambda-lists.
1 ========================== C M U C L 18 e =============================
2
3 [--- WORK IN PROGRESS --- DO NOT DISTRIBUTE ---]
4
5 The CMUCL project is pleased to announce the release of CMUCL 19a.
6 This is a major release which contains numerous enhancements and
7 bugfixes from the 18e release.
8
9 CMUCL is a free, high performance implementation of the Common Lisp
10 programming language which runs on most major Unix platforms. It
11 mainly conforms to the ANSI Common Lisp standard. CMUCL provides a
12 sophisticated native code compiler; a powerful foreign function
13 interface; an implementation of CLOS, the Common Lisp Object System,
14 which includes multimethods and a metaobject protocol; a source-level
15 debugger and code profiler; and an Emacs-like editor implemented in
16 Common Lisp. CMUCL is maintained by a team of volunteers collaborating
17 over the Internet, and is mostly in the public domain.
18
19 New in this release:
20
21 * Feature enhancements:
22 - Stack overflow checking added for FreeBSD/x86, Linux/x86 and
23 Solaris. Code that makes the control stack overflow (for
24 example due to unbounded recursion) will lead to a
25 STORAGE-ERROR being signaled, instead of making CMUCL crash.
26 - LISP:FIND-CLASS and LISP:CLASS-OF now return CLOS classes. The
27 symbols LISP:STANDARD-CLASS, LISP:BUILT-IN-CLASS, and
28 LISP:STRUCTURE-CLASS name CLOS classes. It is no longer
29 necessary to SHADOWING-IMPORT these from PCL when doing MOP
30 programming, and it fixes some non-compliances as well.
31 - Package locks: a package whose EXT:PACKAGE-LOCK is enabled
32 non-NIL is protected against changes in its structure (list of
33 exported symbols, use-list etc). Symbols in a package whose
34 EXT:PACKAGE-DEFINITION-LOCK is enabled are protected against
35 redefinition.
36 - Weak hash tables have been added for x86 systems.
37 - Local functions are now named (FLET <name> ...) or
38 (LABELS <name> ...).
39 - Compiler checking control string and number of args to FORMAT.
40 - TRACE automatically using encapsulation when function-end
41 breakpoints cannot be used.
42 - INSPECT working on CLOS instances.
43 - Callbacks from foreign code to Lisp. Implemented for x86 and
44 sparc.
45 - Functions like GETHASH that are used in the implementation of
46 TRACE can now be traced. See also
47 DEBUG:*TRACE-ENCAPSULATE-PACKAGE-NAMES*.
48 - New facility for encapsulating functions, FWRAPPERS;
49 see also the CMUCL User Manual.
50 - TRACE and PROFILE have been reimplemented using fwrappers,
51 with the effect of tracing and profiling now working more
52 nicely together.
53 - When a profiled function is redefined, it is re-profiled.
54 - A basic implementation of simple-streams added. Some
55 functionality may be missing.
56 - UNIX:UNIX-LSEEK working with files > 2G on BSDs.
57 - Type declarations on local bindings of special variables no
58 longer being ignored.
59 - DISASSEMBLE disassembling closure/funcallable instance
60 functions.
61 - (SETF EXT:WEAK-POINTER-VALUE) has been added.
62 - CMUCL no longer entering an infinite loop when dumping
63 circular constant lists to fasl files.
64
65 * Numerous ANSI compliance fixes:
66 - Many bugs in CMUCL's type system detected by Paul Dietz'
67 ANSI test suite have been fixed.
68 - Non-keyword keyword names in lambda lists are now accepted.
69 - Condition slot initialization fixed for the case that two
70 or more slots have the same :INITARG.
71 - Initforms are now evaluated once only during condition slot
72 initialization.
73 - USE-VALUE, STORE-VALUE, CONTINUE behavior corrected in presence
74 of multiple restarts having the same name.
75 - RESTART-CASE's interaction with local macros fixed.
76 - Interaction of COMPUTE-RESTARTS and RESTART-CASE fixed in
77 presence of multiple restarts having the same name.
78 - Condition slot readers/writers are generic functions.
79 - &WHOLE, &REST, &BODY in macro lambda lists can be followed
80 by destructuring patterns. The previous behavior of &BODY
81 when followed by (<body> <declarations> <doc>) is available
82 through the new lambda-list keyword EXT:&PARSE-BODY.
83 - ELT now signals an error in safe code when used on lists
84 with an out-of-bounds index.
85 - Accessing arrays in compiled code with out-of-bounds indices
86 now signals a TYPE-ERROR.
87 - DECLARE no longer being a special operator.
88 - DEFINE-CONDITION accepts slot option :DOCUMENTATION.
89 - Behavior of (... &KEY &ALLOW-OTHER-KEYS) fixed for
90 DESTRUCTURING-BIND and macros.
91 - Stricter checking of keyword argument list in CLOS methods.
92 - &ENVIRONMENT variable bound bound before other vars, regardless
93 of where it appears in a lambda-list.
94 - VALUES types no longer accepting &KEY or &ALLOW-OTHER-KEYS.
95 - THE conforming to ANSI.
96 - SLOT-EXISTS-P can be used with conditions.
97 - REMOVE-METHOD always returning the generic function passed to it.
98 - Standard methods for STANDARD-OBJECT and STRUCTURE-OBJECT
99 defined on MAKE-LOAD-FORM.
100 - Compliant MAKE-LOAD-FORM-SAVING-SLOTS.
101 - DEFSTRUCT recording slot-names as specified by users.
102 - Generic function call keyword argument checking according to
103 ANSI 7.6.5.
104 - CALL-NEXT-METHOD without arguments being called with original
105 arguments when method parameters are changed with SETQ.
106 - When CALL-NEXT-METHOD is called with arguments, an error is
107 signaled in safe code when the set of methods applicable to
108 CALL-NEXT-METHOD's arguments is different from the set of
109 methods applicable to the original method arguments.
110 - FIND-METHOD signaling an error when called with specializers
111 not corresponding to the number of required arguments of the
112 supplied generic function.
113 - TYPE-OF returning KEYWORD for keywords, STANDARD-CHAR for
114 standard characters, BOOLEAN for T, (INTEGER <N> <N>) for
115 integers N, non-list types for functions, and CLOS classes for
116 instances whose class doesn't have a proper name.
117 - Class precedence list of NULL not having SYMBOL before LIST,
118 precedence list of STANDARD-METHOD not having METHOD before
119 STANDARD-OBJECT.
120 - ADD-METHOD returning its first argument, the generic function.
121 - DEFCLASS redefining a class with the given name only if the
122 name is the proper name of an existing class.
123 - KEYWORD package no longer having nickname "".
124 - COMMON-LISP-USER package no longer having nickname USER.
125 - COMMON-LISP package no longer having nickname LISP; LISP
126 and COMMON-LISP are now separate packages.
127 - SLOT-VALUE, (SETF SLOT-VALUE), SLOT-BOUNDP, SLOT-MAKUNBOUND
128 returning values specified by the standard when SLOT-UNBOUND
129 or SLOT-MISSING are called and return.
130 - NTH and NTHCDR accepting bignums as first argument.
131 - First arg of CERROR may be a function.
132 - Lambda-lists of the form (X . Y) in DESTRUCTURING-BIND and macros
133 are now equivalent to (X &REST Y).
134
135 * Numerous bugfixes:
136 - NSET-EXCLUSIVE-OR returns the same results as SET-EXCLUSIVE-OR
137 wrt to duplicate elements.
138 - Forms like (MULTIPLE-VALUE-BIND 'LIST) no longer trapping
139 an internal compiler error when compiled.
140 - PARSE-INTEGER signaling PARSE-ERROR.
141 - Compiler eliminating some type checks in safe code.
142 - Byte-compiler and -interpreter not handling C:&MORE.
143 - Some TYPE-ERRORs being signaled with unbound slots, which
144 made them undisplayable.
145 - Structure predicates no longer signaling an error when applied
146 to obsolete instances.
147 - A DEFTRANSFORM for array bounds checking had an off-by-1 error.
148
149 * Other changes:
150 - Removed obsolete alias from MAKE-VECTOR to MAKE-ARRAY
151 - the signature of *COMPILER-NOTIFICATION-FUNCTION* has changed;
152 it now has an extra argument that describes the nature of the
153 error or warning.
154 - File versioning occurs when the version component is :newest,
155 and Emacs style file versions are created: foo.bar.~N~, where
156 the larger N is newer. foo.bar is the newest version.
157 - Converting namestrings to pathnames now get a version component
158 of NIL instead of :NEWEST.
159 - *default-pathname-defaults* has a version component of
160 :unspecific instead of :newest so versioning is disabled by
161 default to preserve current behavior. Set the version to
162 :newest to create versions.
163
164 * Numerous improvements to the PCL implementation of CLOS:
165 - Gerd's PCL has been added, which fixes numerous bugs and ANSI/
166 AMOP non-compliances, and adds various new optimizations (also
167 see the CMU User Manual).
168 - PCL's class hierarchy has been changed to conform to AMOP, for
169 instance, GENERIC-FUNCTION is now a subclass of
170 STANDARD-OBJECT.
171 - ENSURE-CLASS-USING-CLASS's argument list has been changed
172 to conform to AMOP.
173 - COMPUTE-EFFECTIVE-SLOT-DEFINITION now takes a slot name as
174 argument, for AMOP compliance.
175 - SUBTYPEP works in presence of forward-referenced classes.
176 - Accessing slots of specialized parameters in (SETF
177 SLOT-VALUE-USING-CLASS) methods works.
178 - DIRECT-SLOT-DEFINITION-CLASS and EFFECTIVE-SLOT-DEFINITION-CLASS
179 AMOP compliant.
180 - ALLOCATE-INSTANCE working with structures defined with DEFSTRUCT.
181 - With (DEFGENERIC FOO (&REST X &KEY)) (DEFMETHOD FOO (&REST X) X),
182 (FOO 1) now signals an error.
183 - Methods with &OPTIONAL arguments detecting too many args.
184 - DEFMETHOD and DEFGENERIC detecting doubled lambda variables.
185 - DEFGENERIC :ARGUMENT-PRECEDENCE-ORDER option checking.
186 - SLOT-VALUE, (SETF SLOT-VALUE), SLOT-BOUNDP working with conditions.
187 - (SETF SLOT-VALUE) working on read-only structure slots like
188 in other implementations.
189 - The declaration identifiers SLOTS, AUTO-COMPILE,
190 NOT-AUTO-COMPILE have been moved from PCL to EXT.
191 - Support for inlineing methods in effective methods; see the
192 CMU User Manual.
193 - Wrong results could be returned from generic functions when
194 all methods returned constant values, and some methods were
195 qualified, or the generic function didn't use the standard
196 method combination.
197 - For standard method combination and method combinations defined
198 with the short form of DEFINE-METHOD-COMBINATION: If there are
199 no applicable primary methods when a generic function is
200 called, the generic function PCL:NO-PRIMARY-METHOD is called.
201 The default method of this generic function signals a
202 continuable error of type PCL:NO-PRIMARY-METHOD-ERROR.
203
204 * Improvements to Hemlock, the Emacs-like editor:
205
206 * Changes to rebuilding procedure:
207
208 * Deprecated features:
209 - EXT:ENCAPSULATE and associated functions; use fwrappers instead.
210
211 This release is not binary compatible with code compiled using CMUCL
212 18e; you will need to recompile FASL files.
213
214 See <URL:http://www.cons.org/cmucl/> for download information,
215 guidelines on reporting bugs, and mailing list details.
216
217
218 We hope you enjoy using this release of CMUCL!
219

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