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Document changes in lexical-binding

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* doc/lispref/variables.texi (Using Lexical Binding): Document
that lexical-binding is now turned on by default in more cases.

* etc/NEWS: Fix wording of the NEWS entry about the above, and mark it
as fully documented.
This commit is contained in:
Eli Zaretskii 2020-03-07 13:32:52 +02:00
parent 5cb312b5b9
commit 10c58356e4
2 changed files with 15 additions and 6 deletions
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10
doc/lispref/variables.texi
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@ -1187,8 +1187,14 @@ When evaluating Emacs Lisp code directly using an @code{eval} call,
lexical binding is enabled if the @var{lexical} argument to lexical binding is enabled if the @var{lexical} argument to
@code{eval} is non-@code{nil}. @xref{Eval}. @code{eval} is non-@code{nil}. @xref{Eval}.
Lexical binding is also enabled in Lisp Interaction and IELM @findex eval-expression@r{, and }lexical-binding
mode, used in the @file{*scratch*} and @file{*ielm*} buffers. Lexical binding is also enabled in Lisp Interaction and IELM mode,
used in the @file{*scratch*} and @file{*ielm*} buffers, and also when
evaluating expressions via @kbd{M-:} (@code{eval-expression}) and when
processing the @option{--eval} command-line options of Emacs
(@pxref{Action Arguments,,, emacs, The GNU Emacs Manual}) and
@command{emacsclient} (@pxref{emacsclient Options,,, emacs, The GNU
Emacs Manual}).
@cindex special variables @cindex special variables
Even when lexical binding is enabled, certain variables will Even when lexical binding is enabled, certain variables will

11
etc/NEWS
View file

@ -351,10 +351,13 @@ The default value is 30000, as the previously hard-coded threshold.
answers, but also function keys like 'F1', character events such as answers, but also function keys like 'F1', character events such as
'C-M-h', and control characters like 'C-h'. 'C-M-h', and control characters like 'C-h'.
** Lexical binding is now used when evaluating interactive Elisp forms. +++
More specifically, 'lexical-binding' is now used for 'M-:', '--eval', ** Lexical binding is now used by default when evaluating interactive Elisp.
as well as in 'lisp-interaction-mode' and 'ielm-mode', used in the More specifically, 'lexical-binding' is now used by default for 'M-:'
"*scratch*" and "*ielm*" buffers. and '--eval' (including in evaluations invoked from 'emacsclient' via
its '--eval' command-line option), as well as in
'lisp-interaction-mode' and 'ielm-mode', used in the "*scratch*" and
"*ielm*" buffers.
--- ---
** The new user option 'tooltip-resize-echo-area' avoids truncating ** The new user option 'tooltip-resize-echo-area' avoids truncating