Commit graph

6325 commits

Author SHA1 Message Date
Stefan Kangas
4344a3cfb7 Make Emacs 20 compat code in derived.el obsolete
* lisp/emacs-lisp/derived.el (derived-mode-setup-function-name):
Declare obsolete.  This was for compatibility with Emacs 20 or older.
2020-08-14 13:07:26 +02:00
Stefan Kangas
874ba85363 Remove many items obsolete since Emacs 23.1
Emacs 23.1 was five major releases and over a decade ago.
This list can be reviewed before to the next release, but for now
hopefully this motivates any needed external updates.
Ref: https://lists.gnu.org/archive/html/emacs-devel/2020-05/msg02198.html

* lisp/abbrev.el (pre-abbrev-expand-hook):
* lisp/bookmark.el (bookmark-read-annotation-text-func)
(bookmark-jump-noselect):
* lisp/buff-menu.el (buffer-menu-mode-hook):
* lisp/cus-edit.el (custom-mode-hook, custom-mode):
* lisp/dirtrack.el (dirtrack-debug-toggle, dirtrack-debug):
* lisp/emacs-lisp/crm.el (crm-minibuffer-complete)
(crm-minibuffer-completion-help)
(crm-minibuffer-complete-and-exit):
* lisp/emacs-lisp/easymenu.el
(easy-menu-precalculate-equivalent-keybindings):
* lisp/emacs-lisp/lisp-mode.el (lisp-mode-auto-fill):
* lisp/epa.el (epa-display-verify-result):
* lisp/epg.el (epg-passphrase-callback-function):
* lisp/eshell/eshell.el (eshell-report-bug):
* lisp/ffap.el (ffap-bug, ffap-submit-bug):
* lisp/files.el (locate-file-completion):
* lisp/hi-lock.el (hi-lock-face-history, hi-lock-regexp-history):
* lisp/hilit-chg.el (highlight-changes-initial-state)
(highlight-changes-active-string)
(highlight-changes-passive-string, global-highlight-changes):
* lisp/international/mule-cmds.el (nonascii-insert-offset)
(nonascii-translation-table):
* lisp/international/mule-diag.el (non-iso-charset-alist):
* lisp/international/mule-util.el (detect-coding-with-priority):
* lisp/international/mule.el (charset-id, charset-bytes)
(charset-list, char-valid-p, generic-char-p)
(char-coding-system-table, make-coding-system)
(set-coding-priority)
* lisp/mail/rmail.el (rmail-message-filter):
* lisp/minibuffer.el (complete-in-turn, dynamic-completion-table)
(completion-common-substring)
(minibuffer-local-must-match-filename-map):
* lisp/mouse.el (mouse-major-mode-menu, mouse-popup-menubar)
(mouse-popup-menubar-stuff):
* lisp/net/newst-treeview.el (newsticker-groups-filename):
* lisp/obsolete/tpu-edt.el (tpu-have-ispell, GOLD-map):
* lisp/password-cache.el (password-read-and-add):
* lisp/shell.el (shell-dirtrack-toggle):
* lisp/subr.el (forward-point, redisplay-end-trigger-functions)
(process-filter-multibyte-p, set-process-filter-multibyte):
* lisp/t-mouse.el (t-mouse-mode):
* lisp/term/w32-win.el (w32-focus-frame, w32-select-font):
* lisp/textmodes/ispell.el (ispell-aspell-supports-utf8):
* lisp/textmodes/remember.el (remember-buffer):
* lisp/tooltip.el (tooltip-hook):
* lisp/url/url-util.el (url-generate-unique-filename):
* lisp/url/url-vars.el (url-temporary-directory):
* lisp/vc/vc-hooks.el (vc-workfile-version)
(vc-default-working-revision):
* lisp/vc/vc-mtn.el (vc-mtn-command):
* lisp/vc/vc.el (vc-revert-buffer):
* lisp/vcursor.el (vcursor-toggle-vcursor-map):
Remove items, obsolete since Emacs 23.1.
* lisp/abbrev.el (expand-abbrev):
* lisp/epg.el (epg-context): Change
'epg-passphrase-callback-function' call to 'epa-' alternative.
* lisp/eshell/em-rebind.el (eshell-cannot-leave-input-list): Don't
refer to removed function 'forward-point'.
* test/manual/etags/c-src/abbrev.c (Fexpand_abbrev):
(syms_of_abbrev): Don't run removed hook 'pre-abbrev-expand-hook'.
* lisp/international/mule.el (transform-make-coding-system-args):
Declare obsolete.
* lisp/progmodes/idlwave.el:
Update reference to removed function 'char-valid-p'.
* lisp/gnus/mml2015.el (epg-encrypt-string):
* lisp/gnus/mml1991.el (epg-make-context):
* lisp/gnus/mml-smime.el (autoload):
Remove autoload of removed 'epg-passphrase-callback-function'.
* lisp/minibuffer.el (completion-extra-properties):
Remove support for `completion-common-substring'.
* lisp/obsolete/tpu-edt.el (tpu-toggle-overwrite-mode)
Remove support for removed `spell' package.
* src/coding.c (syms_of_coding):
* doc/misc/efaq.texi:
* doc/emacs/frames.texi (Menu Mouse Clicks):
* doc/misc/url.texi (Customization): Doc fixes.
; * etc/NEWS: List removed items.
2020-08-14 13:07:26 +02:00
Tobias Zawada
975acf5737 Handle nil load-path element in read-library-name
* lisp/emacs-lisp/find-func.el (read-library-name): Fix handling of
nil 'load-path' element.  (Bug#41998)

Copyright-paperwork-exempt: yes
2020-08-13 18:59:41 +02:00
Jonas Bernoulli
7cb029d4d3 ; * lisp/emacs-lisp/autoload.el: Begin summary line with three semicolons. 2020-08-13 11:34:49 +02:00
Jonas Bernoulli
0bc9e7b8f5 Merge two conditions and fix indentation
The motivation behind this change is that the indentation of some
lines was outright wrong.  If we address that issue, then we might
as well also address the issue that some code is needlessly nested
an additional level.  That we can fix by merging the conditions.

By doing these two changes in on commit we have to change the fewest
lines.  Even though we are moving to using just spaces for indentation
of the modified lines, other lines in the same function are left alone
and continue to us tabs+spaces for indentation.  That is not "wrong",
but just the style we are slowly migrating away from when touching
lines for other reasons.

Discussed in bug#42397.

* lisp/emacs-lisp/eldoc.el (eldoc-minibuffer-message): Merge two
conditions and fix indentation.
2020-08-13 11:30:16 +02:00
Stefan Kangas
a5a0a9c9ca Remove Emacs 23 compat code from checkdoc.el
* lisp/emacs-lisp/checkdoc.el (checkdoc-run-hooks): Redefine as
obsolete function alias for 'run-hook-with-args-until-success'.
(checkdoc-this-string-valid-engine)
(checkdoc-file-comments-engine): Adjust callers.
2020-08-12 15:45:52 +02:00
Lars Ingebrigtsen
db3a7dfccc Remove compat code from autoload.el
* lisp/emacs-lisp/autoload.el (autoload--make-defs-autoload):
register-definition-prefixes is in subr.el, so it shouldn't be
necessary to check whether it's defined.
2020-08-11 21:21:13 +02:00
Noam Postavsky
9b9473ad75 Fix (end-of-defun N) for N >= 2
* lisp/emacs-lisp/lisp.el (end-of-defun): Only skip to next line when
after end of defun when ARG is 1 or less.
* test/lisp/emacs-lisp/lisp-tests.el (end-of-defun-twice): New
test (bug#24427).
2020-08-11 16:02:11 +02:00
Damien Cassou
8e82baf5a7 Add the new library hierarchy.el
* lisp/emacs-lisp/hierarchy.el: New file.
2020-08-09 14:48:22 +02:00
Lars Ingebrigtsen
44b31c1ed7 Make the name column in 'list-buffers' have a dynamic width
* lisp/buff-menu.el (Buffer-menu--dynamic-name-width): New
function (bug#30692).
(Buffer-menu-name-width): Default to using it.
(list-buffers--refresh): Call it.

* lisp/emacs-lisp/seq.el (seq-max): Add autoload cookie.
2020-08-08 11:37:43 +02:00
Mattias Engdegård
0facaeec1a Clean up and improve compilation of arithmetic (bug#42597)
* lisp/emacs-lisp/byte-opt.el (byte-optimize-associative-math)
(byte-optimize-min-max): Transform 3-arg min/max call into two 2-arg
calls, which is faster.
* lisp/emacs-lisp/bytecomp.el (byte-compile-associative): Rename to...
(byte-compile-variadic-numeric): ...this function and simplify,
fixing incorrect comments.  The 3-arg strength reduction is now
always done in the optimisers and is no longer needed here.
(byte-compile-min-max): New function.
(byte-compile-minus): Simplify, remove incorrect comment, and use
byte-compile-variadic-numeric.
(byte-compile-quo): Simplify and fix comment.
2020-08-07 10:00:45 +02:00
Mattias Engdegård
204273c3b9 Fix byte-compilation of (+ -0.0) (bug#42597)
* lisp/emacs-lisp/bytecomp.el (byte-compile-associative):
Translate numerical identity expressions, such as (+ x) and (* x),
into (* x 1) since the previous translation (+ x 0) gets it wrong
for x = -0.0.
* test/lisp/emacs-lisp/bytecomp-tests.el
(byte-opt-testsuite-arith-data): Add test cases.
2020-08-07 09:41:15 +02:00
Lars Ingebrigtsen
47910420c0 Tweak the autoloads scrape output slightly
* lisp/emacs-lisp/autoload.el (batch-update-autoloads--summary):
Output " ..." at the end of the non-concluding lines to signify
that the output continues.
2020-08-06 08:24:56 +02:00
Lars Ingebrigtsen
104dd3b641 Make the loaddefs scraping compilation output look more regular
* lisp/Makefile.in ($(lisp)/loaddefs.el): Don't output the
directories here.

* lisp/emacs-lisp/autoload.el (batch-update-autoloads--summary):
New function.
(batch-update-autoloads): Use it to output the directories we're
scraping.

This changes the compilation output from:

Directories for loaddefs: . ./calc ./calendar ./cedet ./cedet/ede
./cedet/semantic ./cedet/semantic/analyze ./cedet/semantic/bovine
./cedet/semantic/decorate ./cedet/semantic/symref ./cedet/semantic/wisent
./cedet/srecode ./emacs-lisp ./emulation ./erc ./eshell ./gnus ./image
./international ./language ./leim ./leim/ja-dic ./leim/quail ./mail ./mh-e
./net ./nxml ./org ./play ./progmodes ./textmodes ./url ./vc

(but all on one long line)

To:

  SCRAPE   . ./calc ./calendar ./cedet ./cedet/ede ./cedet/semantic
  SCRAPE   ./cedet/semantic/analyze ./cedet/semantic/bovine
  SCRAPE   ./cedet/semantic/decorate ./cedet/semantic/symref
  SCRAPE   ./cedet/semantic/wisent ./cedet/srecode ./emacs-lisp ./emulation
  SCRAPE   ./erc ./eshell ./gnus ./image ./international ./language ./leim
  SCRAPE   ./leim/ja-dic ./leim/quail ./mail ./mh-e ./net ./nxml ./org ./play
  SCRAPE   ./progmodes ./textmodes ./url ./vc

Compilation output with very long lines can be mistaken for errors
when they scroll by fast in the compilation output.  Making it look
more like normal informational output avoids this confusion.
2020-08-06 08:20:09 +02:00
Lars Ingebrigtsen
7384f194be Make 'byte-compile-info*' functions more logical
* lisp/emacs-lisp/byte-run.el (byte-compile-info): New function
that's more flexible that replaces 'byte-compile-info-string' and
'byte-compile-info-message'.
(byte-compile-info-string): Make obsolete.
(byte-compile-info-message): Ditto.

* lisp/international/ja-dic-cnv.el (skkdic-convert-okuri-ari)
(skkdic-convert-postfix, skkdic-convert-prefix)
(skkdic-collect-okuri-nasi, skkdic-set-okuri-nasi):
* lisp/finder.el (finder-compile-keywords):
* lisp/cus-dep.el (custom-make-dependencies): Adjust callers to
use the new function.
2020-08-06 08:12:31 +02:00
Philipp Stephani
ca419812d3 Avoid duplicate Edebug symbols when backtracking (Bug#42701)
When Edebug backtracks, it nevertheless generates definitions for the
non-matching branches, see Bug#41988 and Bug#42701.  This should be
fixed eventually (probably by deferring the definition until a branch
is known to match), but for now add a band-aid to avoid these
duplicate symbols, at least for anonymous forms.

* lisp/emacs-lisp/edebug.el (edebug-make-enter-wrapper): Regenerate
anonymous names.

* test/lisp/emacs-lisp/edebug-tests.el
(edebug-tests-duplicate-symbol-backtrack): New regression test.
2020-08-03 21:07:32 +02:00
Philipp Stephani
a325584281 Improve Edebug symbols for inlined secondary methods (Bug#42671)
* lisp/emacs-lisp/cl-generic.el (cl-defgeneric): Include qualifiers in
Edebug symbol name.

* test/lisp/emacs-lisp/cl-generic-tests.el
(cl-defgeneric/edebug/method): Adapt unit test.
2020-08-02 22:07:27 +02:00
Philipp Stephani
3e0c3479b2 Add a workaround for Bug#42672
* lisp/emacs-lisp/cl-generic.el (cl-defgeneric): Work around Bug#42672
by uniquifying inline method names.

* test/lisp/emacs-lisp/cl-generic-tests.el
(cl-defgeneric/edebug/method): New regression test.
2020-08-02 18:05:36 +02:00
Philipp Stephani
d8ab98843e Avoid duplicate Edebug symbols when using ‘cl-flet’ (Bug#41989)
* lisp/emacs-lisp/edebug.el (edebug-match-:unique): Add a new
‘:unique’ specifier to generate unique names.

* lisp/emacs-lisp/cl-macs.el (cl-flet): Use it.  This requires
inlining the ‘cl-defun’ specification.

* test/lisp/emacs-lisp/edebug-tests.el (edebug-tests-cl-flet): New
unit test.

* doc/lispref/edebug.texi (Specification List): Document new ‘:unique’
construct.
2020-08-02 17:39:24 +02:00
Philipp Stephani
e6eb554b95 Don’t generate duplicate symbols for secondary CL methods (Bug#42671)
* lisp/emacs-lisp/edebug.el
(edebug-match-cl-generic-method-qualifier): Add matcher for
‘cl-defmethod’ qualifier.

* lisp/emacs-lisp/cl-generic.el (cl-defmethod): Use it.

* test/lisp/emacs-lisp/edebug-tests.el
(edebug-cl-defmethod-qualifier): New unit test.
2020-08-02 16:06:41 +02:00
Glenn Morris
fbe363f5e1 ; Maintainer header updates 2020-07-31 09:09:39 -07:00
Stefan Monnier
450b50df11 * lisp/emacs-lisp/byte-opt.el: Minor simplifications
(byte-optimize-form-code-walker): Use `byte-optimize-form` after
inlining, so optimizations are also applied to the top level call.
Simplify the code for `pure` functions using `byte-optimize-constant-args`.
(byte-optimize-all-constp): Remove, not used any more.
(byte-optimize-1+, byte-optimize-1-): Remove, they are redundant
with the `pure` annotation.
2020-07-31 11:58:13 -04:00
Stefan Kangas
7899fa4309 Declare some ancient compat aliases obsolete (Bug#41328)
* lisp/comint.el (comint-read-noecho):
* lisp/emacs-lisp/edebug.el (edebug-all-defuns):
* lisp/man.el (manual-entry):
* lisp/vc/log-edit.el (vc-log-mode-map, vc-log-entry-mode): Declare
ancient backwards-compatibility aliases and functions obsolete.  The
oldest in this list was added in 1992, and the most recent in 2004.

* lisp/net/telnet.el (telnet-initial-filter): Don't use
`comint-read-noecho'.
2020-07-31 06:02:30 +02:00
Mattias Engdegård
e5889c704f Simplify and streamline optimizer clauses
* lisp/emacs-lisp/byte-opt.el (byte-optimize-form-code-walker):
Remove clause for 'with-output-to-temp-buffer', since it is a
macro and will have been expanded before reaching this point.
Move clauses for 'lambda' and 'closure' to avoid splitting
a cond jump table.
2020-07-28 15:48:38 +02:00
João Távora
9d751aa822 Make newer ElDoc versions are compatible with Emacs < 28
Fixes: bug#42563

For some time, Eldoc has has some Elisp-specific code that shouldn't
live there, but in elisp-mode.el.  This can be fixed in Emacs master,
but since ElDoc is distributed in GNU Elpa and is meant to work with
Emacs 26 and 27, this means that that elisp-specific code must still
be distributed with eldoc.el and kept up to date.

* lisp/emacs-lisp/eldoc.el (eldoc--eval-expression-setup): Ensure
implementation is compatible with Emacs < 28.
(Version): Bump to 1.8
2020-07-27 22:18:57 +01:00
João Távora
688c03f412 Bring back ElDoc's eldoc-display-message-p, but obsolete it
Like others, this is an implementation detail that third parties could
be relying on.  Better not remove it outright just now, since its
implementation is very simple anyway.

* lisp/emacs-lisp/eldoc.el (Version): Bump to 1.7.0
(eldoc-display-message-p): Bring back, but obsolete.
2020-07-27 16:26:33 +01:00
Mattias Engdegård
609cbd63c3 Optimise 3-arg +, - and *
Turn (+ a b c) into (+ (+ a b) c), and do the same for - and *.
The 2-arg operations have their own bytecode which results in a 1.5×
speed-up.  Furthermore, the transform enables other optimisations; for
example, (+ a 1 b) -> (+ (1+ a) b).

* lisp/emacs-lisp/byte-opt.el (byte-optimize-plus, byte-optimize-minus)
(byte-optimize-multiply): Transform (OP a b c) into (OP (OP a b) c).
2020-07-25 19:24:56 +02:00
João Távora
fcd43287b3 Don't needlessly request docs from ElDoc functions
Fixes: bug#42421

Do this conservatively for now: if the ElDoc helper buffer (as
returned by eldoc--doc-buffer) is visible and showing documentation
for the very same "situation" (as computed by the the new
eldoc--request-state helper), don't request that documentation from
sources again.

Before this change, not only was that request inefficient but if the
user invoked scroll-other-window to see more of the helper buffer,
that would eventually cause it to be reformatted and unexpectedly
recentered.

Later on, when a customizable list of documentation "sinks" is offered
to the user, say, something like eldoc-display-functions, this process
must be consolidated.  In those circumstances, as soon as one of those
sinks signals that it doesn't have up-to-date documentation for the
state computed by eldoc--request-state, documentation will have to be
requested anew from eldoc-documentation-functions via
eldoc--invoke-strategy.

* lisp/emacs-lisp/eldoc.el (eldoc--request-docs-p): Rework from
eglot-display-message-p.
(eldoc--last-request-state): New variable.
(eldoc--request-state): New helper.
(eldoc--handle-docs): Memorize state of request in doc buffer.
(eldoc-print-current-symbol-info): Pass a token to
eldoc--request-docs-p.
(Version): Bump to 1.6.0
2020-07-23 11:57:27 +01:00
João Távora
c77731e824 Fix ElDoc bugs around eldoc-echo-area-use-multiline-p.
If the value is 'truncate-sym-name-if-fit andthe single docstring
doesn't fit in the echo area even when the symbol name is elided, that
step shouldn't be attempted.  Also if the value is nil, really ensure
that only the first line is shown.

* lisp/emacs-lisp/eldoc.el (eldoc--handle-docs): Rework
'truncate-sym-name-if-fit case of eldoc-echo-area-use-multiline-p.
2020-07-19 00:59:14 +01:00
João Távora
4a7ecaaee0 ; Reword bits of ElDoc internal documentation
* lisp/emacs-lisp/eldoc.el (eldoc--invoke-strategy): Rewrite docstring.
(eldoc--invoke-strategy): Fix formatting and rewrite comments
2020-07-19 00:59:14 +01:00
Lars Ingebrigtsen
ba12555fda Fix NOT-CURRENT behaviour in text-property-search-backward
* lisp/emacs-lisp/text-property-search.el
(text-property-search-backward): Fix inconsistent behaviour of
S-TAB in eww (and other callers that use the NOT-CURRENT
behaviour) when there are adjacent elements
(bug#39239).
2020-07-17 18:44:49 +02:00
Tassilo Horn
85eaa8373b ;Fix eldoc regression bug#42365 2020-07-15 18:58:57 +02:00
Basil L. Contovounesios
36e6019034 Consistently stylize eldoc as ElDoc in more prose
This fixes new occurrences of "Eldoc" since emacs-27.

* doc/lispref/modes.texi (Major Mode Conventions):
* etc/NEWS:
* lisp/descr-text.el (describe-char-eldoc):
* lisp/emacs-lisp/eldoc.el (eldoc-echo-area-use-multiline-p)
(eldoc-prefer-doc-buffer, eldoc--documentation-strategy-defcustom):
Consistently capitalize eldoc as ElDoc rather than Eldoc in
documentation and commentary.
2020-07-14 13:49:34 +01:00
James N. V. Cash
7a712578ed Fix a typo in eldoc.el
* lisp/emacs-lisp/eldoc.el (eldoc-documentation-functions): Fix a
typo.  (Bug#42310)

Copyright-paperwork-exempt: yes
2020-07-12 17:10:32 +03:00
João Távora
45d7db6d22 Sort out ElDoc backward compatibility of eldoc-documentation-function
As explained previously, we can't simply make
eldoc-documentation-function an variable alias for
eldoc-documentation-strategy, because ElDoc is pre-loaded in Emacs <
28, where it holds at least one buffer-local binding.  So if eldoc.el
is loaded in those versions, we do the variable alias binding in
reverse.  We do this using a macro
eldoc--documentation-strategy-defcustom to at load time in which
direction to make the variable alias.

* lisp/emacs-lisp/eldoc.el
(eldoc--documentation-strategy-defcustom): Helper macro.
(eldoc-documentation-strategy, eldoc-documentation-function): Use it.
(Version): Bump to 1.5.0
2020-07-12 14:24:05 +01:00
João Távora
1198b03e55 Fix placement of Eldoc docs during eval-expression (bug#42309)
* lisp/emacs-lisp/eldoc.el (eldoc--handle-docs): Rework.
2020-07-10 21:23:33 +01:00
João Távora
c2599632b0 Revert "Fix Eldoc problem when loading on Emacs 26.3"
This reverts commit 9ade7ea7b7.

* lisp/emacs-lisp/eldoc.el (Version): Bump to 1.4.0
2020-07-10 18:12:10 +01:00
João Távora
62725e87f2 Fix byte compilation warning in Eldoc
* lisp/emacs-lisp/eldoc.el (eldoc-documentation-function): Pass nil as
second argument.
2020-07-10 08:13:15 +01:00
João Távora
9ade7ea7b7 Fix Eldoc problem when loading on Emacs 26.3
When defining the obsolete variable alias for old
eldoc-documentation-function (which now points to the newer
eldoc-documentation-strategy), one gets the error "don't know how to
make a localized vareiable an alias".  I'm not sure, but I suspect
this is because Eldoc is preloaded in Emacs 26.3 and the
eldoc-documentation-function variable is already set locally by some
Elisp buffer.

Uninterning the symbol shortly before defining the alias seems to fix
it.

* lisp/emacs-lisp/eldoc.el (eldoc-documentation-function):
Unintern on load.
(Version): Bump to 1.3.0
2020-07-10 01:47:33 +01:00
João Távora
59f563680d Unbreak M-x eldoc
The command should always invoke Eldoc when called interactively,
instead of going through the usual checks, which are performed to
avoid interference with other commands.

* lisp/emacs-lisp/eldoc.el (eldoc-print-current-symbol-info): Rework.
(Version): Bump to 1.2.0
2020-07-09 18:07:22 +01:00
João Távora
ffb99d8490 Prevent infloop in Eldoc message truncation algorithm
The truncation algorithm still has a long way to go for very narrow
frame sizes.  It should become a generic mechanism that would allows
one to truncate a string so that fits in N possibly truncated screen
lines of a full-width window.

* lisp/emacs-lisp/eldoc.el (eldoc-handle-docs): Tweak
2020-07-09 18:07:22 +01:00
João Távora
384fa10958 Improve Eldoc docstrings
* lisp/emacs-lisp/eldoc.el (eldoc-documentation-strategy): Improve
docstring.
(eldoc--make-callback): Improve docstring.
(eldoc--invoke-strategy): New helper function.
(eldoc-print-current-symbol-info): Call eldoc--invoke-strategy.
(eldoc-documentation-functions): Improve docstring.
2020-07-08 11:25:33 +01:00
João Távora
fbc0bc6bef Change version scheme of two Eldoc obsolete specs
* lisp/emacs-lisp/eldoc.el (eldoc-documentation-function)
(eldoc-message): Obsolete spec uses eldoc-1.1.0.
2020-07-08 11:25:33 +01:00
João Távora
bba3bea247 Adjust Eldoc documentation after Eli's review
* etc/NEWS (Eldoc): Adjust paragraphs.

* lisp/emacs-lisp/eldoc.el (eldoc-prefer-doc-buffer): Adjust
docstring.
(eldoc--enthusiasm-curbing-timer, eldoc-documentation-strategy)
(eldoc-documentation-functions): Adjust docstring.
(eldoc--handle-docs): Adjust comments.
(eldoc--documentation-compose-1): New helper.
(eldoc-documentation-compose)
(eldoc-documentation-compose-eagerly): Use it.
(eldoc-print-current-symbol-info): Adjust comments.
2020-07-08 11:25:33 +01:00
João Távora
1203626f47 Make more parts of Emacs use new Eldoc capabilities
Elisp-mode was doing a lot of work that can now be delegated to Eldoc.
Flymake uses the new Eldoc functionality, too, installing a global
documentation function that may report on diagnostics under point.

CEDET's grammar.el was left as the only user of an Eldoc-internal
function.  That function was moved to grammar.el.  That file is still,
somewhat reprehensibly, using an internal function of elisp-mode.el,
but this was left unchanged.

In other situations, eldoc-documentation-functions is used or
recommended.

The only other places where the obsolete eldoc-documentation-function
is still used is in libraries which are presumably meant to remain
compatible with previous Emacs versions.

* lisp/progmodes/elisp-mode.el (elisp-eldoc-funcall)
(elisp-eldoc-var-docstring): New functions.
(emacs-lisp-mode): Put two elements in
eldoc-documentation-functions.

* lisp/emacs-lisp/eldoc.el (eldoc--eval-expression-setup): Setup
new Elisp eldoc-documentation-functions.

* lisp/progmodes/flymake.el (flymake-mode): Use
flymake-eldoc-function.
(flymake-eldoc-function): New function.
(Package-Requires): Require eldoc 1.1.0

* lisp/descr-text.el (describe-char-eldoc): Recommend
eldoc-documentation-functions.

* lisp/progmodes/cfengine.el (cfengine3-documentation-function):
Recommend eldoc-documentation-functions

* lisp/progmodes/octave.el (inferior-octave-mode): Use
eldoc-documentation-functions.

* lisp/cedet/semantic/grammar.el (semantic--docstring-format-sym-doc):
New function.
(semantic-grammar-eldoc-get-macro-docstring): Adjust.
2020-07-08 11:25:33 +01:00
João Távora
a9bd506004 * lisp/emacs-lisp/eldoc.el (Version): Bump to 1.1.0 2020-07-08 11:25:33 +01:00
João Távora
22cae4f509 New M-x eldoc for on-demand and interactive documentation requests
The function eldoc is just an alias for
eldoc-print-current-symbol-info, which is made interactive.

* lisp/emacs-lisp/eldoc.el (eldoc-print-current-symbol-info): Now an
interactive function.
(eldoc): Alias to eldoc-print-current-symbol-info.
2020-07-08 11:25:33 +01:00
João Távora
a7a53f0d79 Better handle asynchronous Eldoc sources
This is a backward compatible redesign of significant parts of the
eldoc.el library.

Previously, Eldoc clients (major/minor modes setting its documentation
gathering variables) needed to directly call eldoc-message, an
internal function, to display the docstring to the user.  When more
asynchronous sources are involved, this is hard to do or even breaks
down.

Now, an Eldoc backend may return any non-nil, non-string value and
call a callback afterwards.  This restores power to Eldoc over how
(and crucially also when) to display the docstrings to the user.

Among other things, this fixes so called "doc blinking", or the very
short-lived display of a lower priority Eldoc message.  This would
happen if a particular producer of documentation finishes shortly
before a higher priority one, like in the LSP engine Eglot as reported
by Andrii Kolomoiets <andreyk.mad@gmail.com> and Dmitry Gutov
<dgutov@yandex.ru>.

Gathering docstrings is now delegated to the variable
eldoc-documentation-strategy, which is the new name for the
now-obsolete eldoc-documentation-function, and still accepts the
so-called "old protocol".  Examples of the new strategies enabled are
codified in functions such as eldoc-documentation-enthusiast,
eldoc-documentation-compose-eagerly, along with the existing
eldoc-documentation-compose and eldoc-documentation-default.

The work of displaying and formatting docstrings is shifted almost
fully to Eldoc itself and is delegated to the internal function
eldoc--handle-docs.  Among other improvements, it handles most of
eldoc-echo-area-use-multiline-p and outputs documentation to a
temporary *eldoc* buffer.

The manual and NEWS are updated to mention the new Eldoc features.

* lisp/emacs-lisp/eldoc.el (eldoc-documentation-functions):
Overhaul docstring.
(eldoc-documentation-compose, eldoc-documentation-default): Handle
non-nil, non-string values of elements of
eldoc-documentation-functions.  Use eldoc--handle-multiline.
(eldoc-print-current-symbol-info): Honour non-nil, non-string
values returned by eldoc-documentation-callback.
(eldoc--make-callback): Now also a function.
(eldoc-documentation-default, eldoc-documentation-compose): Tweak docstring.
(eldoc-documentation-enthusiast, eldoc-documentation-compose-eagerly):
New functions.
(eldoc-echo-area-use-multiline-p): Add new semantics.
(eldoc--handle-docs): Handle some of eldoc-echo-area-use-multiline-p.
(eldoc-doc-buffer): New command.
(eldoc-prefer-doc-buffer): New defcustom.
(eldoc--enthusiasm-curbing-timer): New variable.
(eldoc-documentation-strategy): Rename from eldoc-documentation-function.
(eldoc--supported-p): Use eldoc-documentation-strategy
(eldoc-highlight-function-argument)
(eldoc-argument-case, global-eldoc-mode)
(turn-on-eldoc-mode): Mention eldoc-documentation-strategy.
(eldoc-message-function): Mention eldoc--message.
(eldoc-message): Made obsolete.
(eldoc--message): New helper.

* lisp/hexl.el (hexl-print-current-point-info): Adjust to new
eldoc-documentation-functions protocol.

* lisp/progmodes/cfengine.el (cfengine3-documentation-function):
Adjust to new eldoc-documentation-functions protocol.

* lisp/progmodes/elisp-mode.el
(elisp-eldoc-documentation-function): Adjust to new
eldoc-documentation-functions protocol.

* lisp/progmodes/octave.el (octave-eldoc-function): Adjust to new
eldoc-documentation-functions protocol.

* lisp/progmodes/python.el (python-eldoc-function): Adjust to new
eldoc-documentation-functions protocol.

(eldoc-print-current-symbol-info): Rework with cl-labels.

* doc/emacs/programs.texi (Lisp Doc): Mention
eldoc-documentation-strategy.

* doc/lispref/modes.texi (Major Mode Conventions): Mention
eldoc-documentation-functions.

* etc/NEWS: Mention eldoc-documentation-strategy.
2020-07-08 11:25:33 +01:00
Mattias Engdegård
df3ece9d2e Optimise assoc and rassoc with symbol key to assq and rassq
This is the same transformation made for member to memq.

* lisp/emacs-lisp/byte-opt.el (byte-optimize-assoc): New function.
(assoc, rassoc): Set the byte-optimizer property.
2020-07-07 17:55:20 +02:00
Stefan Monnier
6b80ff3c46 * lisp/emacs-lisp/cl-macs.el (cl-deftype-satisfies): Add keyword 2020-07-06 18:04:54 -04:00