Replace uses of a variable aliasing another variable with that aliased
variable, to allow for variable removal when possible. This also
enables opportunities for other optimisations. Example:
(let ((y x)) (f y)) => (f x)
The optimisation is only performed if both aliased and aliasing
variables are lexically bound. Shadowing bindings are α-renamed when
necessary for correctness. Example:
(let* ((b a) (a EXPR)) (f a b))
=> (let* ((a{new} EXPR)) (f a{new} a))
* lisp/emacs-lisp/byte-opt.el (byte-optimize--aliased-vars): New.
(byte-optimize-form-code-walker): Cancel aliasing upon mutation.
(byte-optimize--rename-var-body, byte-optimize--rename-var): New.
(byte-optimize-let-form): Add the optimisation.
* test/lisp/emacs-lisp/bytecomp-tests.el (bytecomp-tests--test-cases):
Add relevant test cases.
* lisp/net/tramp-gvfs.el (tramp-gvfs-handle-make-directory): Simplify.
* lisp/net/tramp-sh.el (tramp-methods) <telnet, nc>: Don't use
"%n" marker.
* test/lisp/net/tramp-tests.el (tramp-test13-make-directory): Merge with
`tramp-test-make-directory-helper' and
`tramp-test13-make-directory-with-file-modes'.
(tramp-test44-asynchronous-requests): Use always the same
operation in timer.
* progmodes/python.el (python-shell-eval-file-setup-code): Look for a
file coding cookie on the Python rather than on the Emacs side, to
avoid additional file transfers.
(python-shell--save-temp-file): Allow argument to be a buffer.
(python-shell-send-file): Address the case where the selected file and
the inferior process are on different machines (bug#50516).
* lisp/progmodes/python.el (python-shell-completion-at-point): cache
results, since computing them involves talking with the inferior
process and, potentially, network communications
(python-shell--capf-cache): new variable, for cache
(python-shell-completion-get-completions)
(python-shell-completion-native-get-completions): 'import' argument is
not needed anymore.
(python-shell-completion-native-setup)
(python-shell-completion-native-try): pass the setup code
synchronously, to avoid printing a message in the shell (bug#50459).
* src/xterm.c (x_draw_image_relief):
* src/w32term.c (w32_draw_image_relief): Fix the display of
tab-bar buttons when mouse pointer moves off the button.
(Bug#50424)
* src/keyboard.c (make_lispy_position): Call
'window_from_coordinates' with last 2 arguments non-zero, to have
it report on tool-bar and tab-bar positions. Tweak the return
value according to the expectations of 'make_lispy_event'.
(make_lispy_event): No more need to inject "tab-bar" into a click
event on the tab bar: it's already there.
Formerly, bug-reference-fontify placed the overlay on the complete
match of bug-reference-bug-regexp. That made it impossible to encode
constraints like "must not match at BOL" in the regexp without messing
up fontification. Therefore, now it establishes the contract that
subexpression 1 defines the overlay region. Subexpression 2 must
still match the part of the bug reference injected into
bug-reference-url-format if that's a string. If its a function, the
interpretation of subexpressions > 1 is up to the function.
For backwards compatibility, bug-reference-fontify checks if the
bounds of subexpression 2..10 are within the bounds of subexpession
1. If not, or subexpression 1 doesn't even exist/match, we fall back
to placing the overlay from (match-beginning 0) to (match-end 0) but
issue a warning.
* lisp/progmodes/bug-reference.el (bug-reference-bug-regexp): Document
contract that subexpression 1 defines the overlay region and adapt the
default value accordingly.
(bug-reference--nonconforming-regexps): New internal variable.
(bug-reference--overlay-bounds): New function.
(bug-reference-fontify): Place overlay on subexpression 1's bounds if
bug-reference-bug-regexp conforms to the documented contract.
(bug-reference--setup-from-vc-alist): Adapt regexps to new contract.
* doc/emacs/maintaining.texi (Bug Reference): Adapt regexp used in
example.
* src/pdumper.c (dump_map_file_w32): Use PAGE_WRITECOPY flag when
calling CreateFileMapping for DUMP_MEMORY_ACCESS_READWRITE access,
as that is required by Windows 9X. (Bug#50453)
* lisp/paren.el (show-paren--delete-overlays):
New function, extracted from show-paren-mode.
(show-paren-local-mode): New minor mode.
(show-paren-mode): Update docstring to mention it (bug#29381).
* doc/emacs/programs.texi (Matching): Update show-paren-mode section.
* lisp/progmodes/bug-reference.el (bug-reference--overlays-in): New
function.
(bug-reference-unfontify): Use it.
(bug-reference-fontify): Reuse and move existing overlays instead of
deleting all and creating them anew.
* lisp/emacs-lisp/comp.el ('native-comp-compiler-options): New option.
* lisp/emacs-lisp/bytecomp.el (byte-compile-from-buffer): Add support
for new 'native-comp-compiler-options'.
* src/comp.c (Fcomp_native_compiler_options_effective_p): New function.
(add_compiler_options): New function.
(Fcomp__compile_ctxt_to_file): Call 'add_compiler_options'.
* lisp/progmodes/python.el (python-eldoc-at-point): Revert usage
of format-prompt in python.el since this is also an ELPA package
(and older Emacs versions doesn't have format-prompt).
* lisp/net/tramp-sh.el:
* lisp/net/tramp-adb.el:
* lisp/net/tramp-sudoedit.el:
* lisp/net/tramp-gvfs.el: Add support for default file modes to
relevant Tramp back ends for make-directory. (Closes: Bug#50410)
* test/lisp/net/tramp-tests.el (tramp-test13-make-directory-with-file-modes):
New test.
* etc/NEWS: Note this enhancement.
Thanks to Michael Albinus for helping improve this patch.
* lisp/progmodes/xref.el (xref-find-apropos): Mention
'tags-apropos-additional-actions' in the doc string.
* lisp/progmodes/etags.el (tags-apropos-additional-actions):
Mention 'xref-find-apropos' in the doc string.
* doc/emacs/maintaining.texi (Looking Up Identifiers): Rearrange
and reword documentation of 'xref-find-apropos' and
'xref-auto-jump-to-first-definition'. Add the description of
'tags-apropos-additional-actions'. Delete the comment with
not-yet implemented features that were available with
'tags-apropos'.
* etc/NEWS: Augment the wording of 'xref-find-apropos' entry.
* lisp/isearch.el (isearch-allow-motion,
isearch-motion-changes-direction): New user options.
(isearch-pre-command-hook): Handle the new options.
* etc/NEWS: Mention the new user options.
* doc/emacs/search.texi: Document the new user options.
* lisp/isearch.el (isearch-beginning-of-buffer)
(isearch-end-of-buffer): Fix their behavior when
isearch-repeat-on-direction-change is non-nil (bug#50466).
* lisp/isearch.el (search-whitespace-regexp): Change the default
to always exclude newlines from the set (bug#21278). It used to
be mode-dependent whether newlines were included or not, and this
was confusing as a user interface.
* lisp/progmodes/etags.el (xref-etags-apropos-location):
New class.
(xref-location-marker): New method definition.
(xref-make-etags-apropos-location): New function.
(etags--xref-apropos-additional): New function.
(xref-backend-apropos): Use it here.
* etc/NEWS: Improve wording of tab-bar related entries.
* lisp/tab-bar.el (tab-bar-show, tab-bar-select-tab-modifiers):
Improve and clarify the doc strings.
* lisp/progmodes/python.el (python-shell-send-string): Only heed
'comint-max-line-length' for subprocesses with which we
communicate via PTYs. (Bug#49822)
* lisp/comint.el (comint-max-line-length): Doc fix. Add a value
for MS-Windows.
* lisp/progmodes/ruby-mode.el (ruby-smie-rules): Align with the
first sibling on the previous line instead of the last (bug#32496).
That is, before it used to be
one.two.three
.four
and now it is
one.two.three
.four
* lisp/comint.el (comint-max-line-length): New constant reflecting a
safe maximum line size that can be sent to an inferior process.
* lisp/progmodes/python.el
(python-shell-comint-watch-for-first-prompt-output-filter): Send setup
code to the inferior process only once and at this stage.
(python-shell-eval-setup-code, python-shell-eval-file-setup-code):
Move, unchanged, to an earlier point to avoid byte-compiler warnings.
(python-shell-send-string-no-output): Revert changes of e32c7d2a8d
(python-shell-send-string): Use 'comint-max-line-length' to decide
when to resort to temp files.
(python-shell-send-string, python-shell-send-file): Don't send setup
code each time (bug#49822).
