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[xemacs-hg @ 2007-06-27 12:19:08 by aidan] Mention that lexical closures are actually available in XEmacs Lisp in the Lisp reference manual.
author aidan
date Wed, 27 Jun 2007 12:19:11 +0000
parents fe4036b9da6a
children 68826456250c
files man/ChangeLog man/lispref/variables.texi
diffstat 2 files changed, 12 insertions(+), 2 deletions(-) [+]
line wrap: on
line diff
--- a/man/ChangeLog	Tue Jun 26 21:51:52 2007 +0000
+++ b/man/ChangeLog	Wed Jun 27 12:19:11 2007 +0000
@@ -1,3 +1,9 @@
+2007-06-27  Aidan Kehoe  <kehoea@parhasard.net>
+
+	* lispref/variables.texi (Extent):
+	Mention that lexical scope is available using lexical-let and
+	lexical-let* in cl-macs, instead of ignoring them entirely. 
+
 2007-05-21  Ville Skyttä  <scop@xemacs.org>
 
 	* internals/internals.texi: Fix corrupted/oddly encoded chars.
--- a/man/lispref/variables.texi	Tue Jun 26 21:51:52 2007 +0000
+++ b/man/lispref/variables.texi	Wed Jun 27 12:19:11 2007 +0000
@@ -894,8 +894,12 @@
 
 @cindex closures not available
   Some Lisp dialects have ``closures'', objects that are like functions
-but record additional variable bindings.  XEmacs Lisp does not have
-closures.
+but record additional variable bindings.  Closures are available in
+XEmacs Lisp using the @code{lexical-let} and @code{lexical-let*}macroes,
+which are autoloaded from @file{cl-macs}.  @xref{(cl)Lexical Bindings}.
+Note that function arguments cannot be closed around using these
+macros, and that any lambda expressions returned will not be
+byte-compiled.  
 
 @node Impl of Scope
 @subsection Implementation of Dynamic Scoping