This lets Emacs avoid marking some garbage as if it were in use.
On one test platform (RHEL 7.8, Intel Xeon Silver 4116) it
sped up ‘cd lisp; make compile-always’ by a bit over 1%.
* src/alloc.c (live_string_holding, live_cons_holding)
(live_symbol_holding, live_large_vector_holding)
(live_small_vector_holding):
Count only pointers that point to a struct component,
or are a tagged pointer to the start of the struct.
Exception: for non-bool-vector pseudovectors,
count any pointer past the header, since it’s too much
of a pain to write code for every pseudovector.
(live_vector_pointer): New function.
* src/alloc.c (mark_memory): Do not bother using mark_maybe_object
on the stack, since mark_maybe_pointer now marks everything that
mark_maybe_object would.
On --with-wide-int platforms where Lisp_Object can be
put into non-adjacent registers, mark_maybe_pointer failed
to mark a float whose only reference was as a tagged pointer.
* src/alloc.c (live_float_holding): New function,
a generalization of the old live_float_p.
(live_float_p): Use it.
(mark_maybe_pointer): Use live_float_holding, not live_float_p.
* lisp/play/life.el (life): New defgroup.
(life-step-time): New defcustom (lower default from 1 to 0.5).
(life): Use above new variable. Make prefix arguments set step time
in tenths of a second instead of whole seconds.
(life-expand-plane-if-needed): Rename argument to step-time.
(life-setup): Fix running `M-x life' with existing buffer.
(life-patterns): Add three more classic patterns.
* lisp/wid-edit.el (file widget): Add a :match and a :validate
function to the 'file widget, to be able to check if the widget
value is an existent file, when required (bug#25678).
Having it placed in the beginning of that hook meant it was mostly
impossible to track the args to a function call while writing it from
scratch, since most compilers issue a diagnostic about incorrect
number of arguments.
See bug#43103.
* lisp/progmodes/flymake.el (flymake-mode): Lower priority of
flymake-eldoc-function.
* doc/lispref/minibuf.texi (Text from Minibuffer): Document it.
* lisp/help-fns.el (describe-function): Adjust the caller.
* lisp/minibuffer.el (format-prompt): Interpret a nil default
value as "no default".
This eldoc-documentation-strategy function didn't always obey protocol
since it returned nil sometimes, which the eldoc engine took it as a
hint for the "old" protocol to clear the echo area.
* lisp/emacs-lisp/eldoc.el (eldoc-documentation-enthusiast):
Return t.
(Version): Bump to 1.9.0
* src/fileio.c (Fexpand_file_name): Restore pre-August-26
behavior, if DOS_NT. This should fix the recently-introduced
expand-file-name bugs on DOS_NT (Bug#26911).
* lisp/mail/smtpmail.el (smtpmail-try-auth-methods): Let the
authorization credentials have an entry with key :smtp-auth containing
a preferred authentication mechanism.
* lisp/progmodes/compile.el (compilation-error-regexp-alist-alist):
Extend regular expression to match optional column numbers.
*
test/lisp/progmodes/compile-tests.el (compile-tests--test-regexps-data):
Add a test.
* test/lisp/progmodes/compile-tests.el (compile-test-error-regexps):
Update the total number of compilation errors in a test.
* etc/compilation.txt: Update compilation.txt with the newly supported
message format.
* etc/NEWS: Advertise the feature.
* lisp/progmodes/project.el (project-async-shell-command)
(project-shell-command): New commands to run 'async-shell-command'
and 'shell-command' in project's root directory.
(project-prefix-map): Bind commands to '!' and '&'.
* doc/emacs/maintaining.texi (Project File Commands): Document the
new commands.
* etc/NEWS: Announce the new commands.
* lisp/emacs-lisp/warnings.el (display-warning-minimum-level)
(log-warning-minimum-level): Make XEmacs compat aliases into obsolete
aliases for 'warning-minimum-level' and 'warning-minimum-log-level'.
This allows override of the read process for eieio-persistent objects,
providing the possibility of matching read/write customization for
eieio-persistent subclasses.
* lisp/emacs-lisp/eieio-base.el (eieio-persistent-make-instance): New
generic function for constructing instances from object data written
to disk. Previously known as eieio-persistent-convert-list-to-object.
Actual object creation (in `make-instance') will later run all slot
values through cl-typep, which does a better job of validation. This
validation is redundant, and slows the read process down.
* lisp/emacs-lisp/eieio-base.el (eieio-persistent-fix-value): Rename
from `eieio-persistent-validate/fix-slot-value', as we no longer
validate, and we don't care about the slot definition.
(eieio-persistent-slot-type-is-class-p): Delete function.
(eieio-persistent-convert-list-to-object): Still call
`eieio--full-class-object', to trigger an autoload if necessary, but
discard the return value.
* lisp/progmodes/cperl-mode.el (cperl-fix-line-spacing): Fix Bug#18985.
Hash keys or function names starting with a Perl keyword followed
by an underscore (as in "for_me" are no longer split into two words
by M-x indent-region.
The bug was that (expand-file-name "~") returned something
like "/home/eggert/" instead of "/home/eggert".
Problem reported by Mattias Engdegård (Bug#26911#27).
* src/fileio.c (Fexpand_file_name): When concatenating NEWDIR to
NM, instead of stripping trailing slashes from NEWDIR (which can
turn non-symlinks into symlinks), strip leading slashes from NM.
This also simplifies the code by removing no-longer-needed DOS_NT
special-casing. Also, remove an unnecessary ‘target[length] = 0;’
as that byte will be overwritten by the next memcpy anyway.
* test/src/fileio-tests.el (fileio-tests--HOME-trailing-slash):
New test.
* lisp/gnus/gnus-dbus.el (gnus-dbus-register-sleep-signal): Apparently
this needs to be :system -- perhaps because PrepareForSleep is a
system-level event?
* lisp/custom.el (customize-mark-as-set): Keep the user theme in sync
even if the new value of the variable is the saved-value or the
standard-value. If we don't do this, custom themes might end up
stepping over the user preferences in a session (bug#28904).
