Implement a limited form of tail-call optimization for the special
case of recursive functions defined with `cl-labels`. Only self-recursion
is optimized, no attempt is made to handle more complex cases such a mutual
recursion.
The main benefit is to reduce the use of the stack, tho in my limited
tests, this can also improve performance (about half of the way to
a hand-written `while` loop).
(cl--self-tco): New function.
(cl-labels): Use it.
* lisp/subr.el (letrec): Optimize single-binding corner case.
* test/lisp/emacs-lisp/cl-macs-tests.el (cl-macs--labels): Add tests
to check that TCO is working.
* test/lisp/subr-tests.el (subr--kbd): Merge test...
(subr-test-kbd): ...with this one. Fix thinko in my previous commit.
Thanks to Mattias Engdegård <mattiase@acm.org>.
* lisp/textmodes/paragraphs.el (mark-paragraph): Revert
eb090f65ce (bug#45318). This restores
the behaviour from Emacs 27 -- further work is needed on this patch.
Reported and reduced by Mauricio Collares.
* lisp/emacs-lisp/comp.el (comp-final): Fix coding system for the
tmp file used to pass data the child processes.
* test/src/comp-tests.el (45603-1): New testcase
* test/src/comp-test-45603.el : New File.
* lisp/emacs-lisp/eieio-core.el (eieio-defclass-autoload): Try to make
the wording of the warning about the obsoleted variable less confusing.
* lisp/emacs-lisp/bytecomp.el (byte-compile-check-variable): Don't
warn for lexical variables (Bug#39169). Fix spurious `or'.
* test/lisp/emacs-lisp/bytecomp-tests.el
(bytecomp/warn-obsolete-variable-bound\.el): New test.
* test/lisp/emacs-lisp/bytecomp-resources/warn-obsolete-variable-bound.el:
New file.
Be consistent when pretty-printing keys: put modifiers outside <>,
thus the more logical C-M-<return> instead of <C-M-return>.
* src/keymap.c (Fsingle_key_description):
Skip modifier prefix before adding <>.
* doc/lispref/help.texi (Describing Characters): Update example.
* doc/lispref/debugging.texi (Backtraces):
* doc/lispref/minibuf.texi (Text from Minibuffer):
Use @kbd instead of @key.
* etc/NEWS: Announce the change.
* test/src/keymap-tests.el (keymap--key-description):
* test/lisp/subr-tests.el (subr--kbd): New tests.
* lisp/progmodes/perl-mode.el
(perl-syntax-propertize-function): Handle HERE doc starter
lines ending in a comment.
(perl-heredoc): New face for HERE docs, inheriting from
font-lock-string-face.
(perl-font-lock-syntactic-face-function): Apply the new face
to HERE docs (Bug#23461).
* test/lisp/progmodes/cperl-mode-tests.el
(cperl-test--run-bug-10483): Skip for Perl mode. The test
explicitly calls a function of CPerl mode.
* lisp/net/tramp-sh.el (tramp-sh-handle-insert-directory): Let buffer be
unibyte when applying numbers returned with the ls --dired option.
Reported by Justus Piater <Justus-dev@Piater.name>.
* test/lisp/net/tramp-tests.el (tramp--test-check-files): Extend test.
* lisp/wid-edit.el (widget-move): Remove code that caused
widget-backward to skip an immediate previous widget when moving
backward from the start of a widget. (Bug#45623)
* test/lisp/wid-edit-tests.el (widget-test-widget-backward): New test.
The test 'process-tests/fd-setsize-no-crash/make-process' used to call
'sleep' to ensure that enough processes are live to trigger a
FD_SETSIZE overflow. However, we can just call 'cat' instead and
close standard input when done. That way, we only wait as long as
needed.
* process-tests.el
(process-tests/fd-setsize-no-crash/make-process): Invoke 'cat' instead
of 'sleep'. Close standard input to exit the 'cat' processes.
The 'process-tty-name' already provides the TTY name, we don't have
interrogate the TTY host.
* test/src/process-tests.el
(process-tests/fd-setsize-no-crash/make-serial-process): Use
'process-tty-name' instead of having the TTY host print its TTY
name. Check whether TTY names are unique.
(process-tests--new-pty, process-tests--with-temp-file): Remove;
no longer used.
Introduce 'unreachable' as LIMPLE operater so we can handle correctly
in the CFG functions throwing values or signaling errors.
* src/comp.c (retrive_block): Better error diagnostic.
(emit_limple_insn): Add `unreachable'.
(compile_function): Fix block iteration.
(syms_of_comp): Define 'Qunreachable'.
* lisp/emacs-lisp/comp.el (comp-block): New variable.
(comp-block-lap): Add `non-ret-insn' slot.
(comp-branch-op-p): New predicate.
(comp-limple-lock-keywords): Color `unreachable' as red.
(comp-compute-edges): Add `unreachable'.
(comp-fwprop-call): Store non returning function call.
(comp-fwprop*): Update.
(comp-clean-orphan-blocks, comp-rewrite-non-locals): New functions.
(comp-fwprop): Call `comp-rewrite-non-locals'.
* test/src/comp-tests.el (comp-tests-type-spec-tests): Add two
tests.
* test/src/comp-test-funcs.el (comp-test-non-local-1)
(comp-test-non-local-2, comp-test-non-local-3)
(comp-test-non-local-4): New functions.
* lisp/progmodes/ruby-mode.el (ruby-syntax-propertize):
Add a rule for setter symbols (bug#42846).
(ruby-font-lock-keywords): Remove dead code, left over from before
commit 26f9c507.
* lisp/progmodes/ruby-mode.el (ruby-smie--bosp):
Handle '=' being part of a symbol (bug#42846).
* test/lisp/progmodes/ruby-mode-resources/ruby.rb:
Add corresponding indentation examples.
* doc/lispref/lists.texi (List Variables): Update manual.
* lisp/subr.el (add-to-ordered-list): Allow using a test
predicate, and make slightly more efficient (bug#45539).
