From: Glenn Morris Date: Sun, 28 Oct 2012 02:34:36 +0000 (-0700) Subject: More cl.texi updates X-Git-Tag: emacs-24.2.90~209^2~41 X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=f94b04fcc7490510d85ce107b65c48bc60334f63;p=emacs.git More cl.texi updates * doc/misc/cl.texi (Multiple Values, Common Lisp Compatibility): More namespace updates. (Obsolete Features): Copyedits. (Obsolete Lexical Macros, Obsolete Setf Customization): New subsections. * etc/NEWS: Related edits. --- diff --git a/doc/misc/ChangeLog b/doc/misc/ChangeLog index 6d744908ebe..fe7781c57cc 100644 --- a/doc/misc/ChangeLog +++ b/doc/misc/ChangeLog @@ -1,5 +1,11 @@ 2012-10-28 Glenn Morris + * cl.texi (Multiple Values, Common Lisp Compatibility): + More namespace updates. + (Obsolete Features): Copyedits. + (Obsolete Lexical Macros, Obsolete Setf Customization): + New subsections. + * cl.texi (Porting Common Lisp, Lexical Bindings): Add some xrefs to the Elisp manual. diff --git a/doc/misc/cl.texi b/doc/misc/cl.texi index aebdcb7d5f4..ed4206c0b97 100644 --- a/doc/misc/cl.texi +++ b/doc/misc/cl.texi @@ -806,7 +806,7 @@ standard @code{setf} facility, and a number of looping and conditional constructs. @c FIXME -@c flet is not cl-flet, values is not cl-values. +@c flet is not cl-flet. @menu * Assignment:: The @code{cl-psetq} form. * Generalized Variables:: Extensions to generalized variables. @@ -815,7 +815,7 @@ constructs. * Blocks and Exits:: @code{cl-block}, @code{cl-return}, @code{cl-return-from}. * Iteration:: @code{cl-do}, @code{cl-dotimes}, @code{cl-dolist}, @code{cl-do-symbols}. * Loop Facility:: The Common Lisp @code{cl-loop} macro. -* Multiple Values:: @code{values}, @code{cl-multiple-value-bind}, etc. +* Multiple Values:: @code{cl-values}, @code{cl-multiple-value-bind}, etc. @end menu @node Assignment @@ -2660,7 +2660,7 @@ than one value either return just the first value (as in @code{get-setf-method}). This package @emph{does} define placeholders for the Common Lisp functions that work with multiple values, but in Emacs Lisp these functions simply operate on lists instead. -The @code{values} form, for example, is a synonym for @code{list} +The @code{cl-values} form, for example, is a synonym for @code{list} in Emacs. @defmac cl-multiple-value-bind (var@dots{}) values-form forms@dots{} @@ -4701,9 +4701,9 @@ and type specifiers are unimplemented. The multiple-value return facility treats lists as multiple values, since Emacs Lisp cannot support multiple return values directly. The macros will be compatible with Common Lisp if -@code{values} or @code{values-list} is always used to return to +@code{cl-values} or @code{cl-values-list} is always used to return to a @code{cl-multiple-value-bind} or other multiple-value receiver; -if @code{values} is used without @code{cl-multiple-value-@dots{}} +if @code{cl-values} is used without @code{cl-multiple-value-@dots{}} or vice-versa the effect will be different from Common Lisp. Many Common Lisp declarations are ignored, and others match @@ -4927,11 +4927,15 @@ recursion. @appendix Obsolete Features This section describes some features of the package that are obsolete -and should not be used in new code. They are only provided by the old -@file{cl.el} entry point, not by the newer @file{cl-lib.el}. +and should not be used in new code. They are either only provided by +the old @file{cl.el} entry point, not by the newer @file{cl-lib.el}; +or where versions with a @samp{cl-} prefix do exist they do not behave +in exactly the same way. @menu -* Lexical Bindings:: An approximation of lexical binding. +* Lexical Bindings:: An approximation of lexical binding. +* Obsolete Lexical Macros:: Obsolete macros using lexical-let. +* Obsolete Setf Customization:: Obsolete ways to customize setf. @end menu @node Lexical Bindings @@ -5050,6 +5054,46 @@ This form is just like @code{lexical-let}, except that the bindings are made sequentially in the manner of @code{let*}. @end defmac +@node Obsolete Lexical Macros +@appendixsec Macros Defined Using Lexical-Let + +The following macros are defined using @code{lexical-let}. +They are replaced by versions with a @samp{cl-} prefix that use true +lexical binding (and hence rely on @code{lexical-binding} being set to +@code{t} in code using them). + +@defmac flet (bindings@dots{}) forms@dots{} +Replaced by @code{cl-flet} (@pxref{Function Bindings}) +or @code{cl-letf} (@pxref{Modify Macros}). +@end defmac + +@defmac labels (bindings@dots{}) forms@dots{} +Replaced by @code{cl-labels} (@pxref{Function Bindings}). +@end defmac + +@defmac letf (bindings@dots{}) forms@dots{} +Replaced by @code{cl-letf} (@pxref{Modify Macros}). +@end defmac + +@node Obsolete Setf Customization +@appendixsec Obsolete Ways to Customize Setf + +This section describes some obsolete ways to extend @code{setf}. +They are replaced by @file{gv.el} in Emacs 24.3. + +@c FIXME. +@defmac define-setf-expander name arglist &rest body +Use @file{gv.el}. +@end defmac + +@defmac defsetf access-fn update-fn +Use @file{gv.el}. +@end defmac + +@defmac define-modify-macro name arglist function [doc-string] +Use @file{gv.el}. +@end defmac + @node GNU Free Documentation License @appendix GNU Free Documentation License diff --git a/etc/NEWS b/etc/NEWS index 45ca56f5da6..cfdd3355aa5 100644 --- a/etc/NEWS +++ b/etc/NEWS @@ -323,11 +323,17 @@ The difference is that it relies on the `lexical-binding' machinery (as opposed to the `lexical-let' machinery used previously) to capture definitions in closures, so such closures will only work if `lexical-binding' is in use. +*** `cl-letf' is not exactly like `letf'. + +++ *** `progv' was rewritten to use the `let' machinery. A side effect is that vars without corresponding value are bound to nil rather than making them unbound. +*** The following methods of extending `setf' are obsolete. +Use gv.el instead (FIXME; details). +`define-setf-expander', `defsetf', `define-modify-macro' + ** Compilation mode +++ *** New option `compilation-always-kill'.