2020-11-07 Andrea Corallo <andrea.corallo@arm.com>
* lisp/emacs-lisp/cl-preloaded.el (cl--typeof-types): Add fixnum
and bignum.
* lisp/emacs-lisp/comp.el (comp-ctxt): Add `supertype-memoize'
slot.
(comp-supertypes, comp-common-supertype-2)
(comp-common-supertype): New functions.
(comp-fwprop-insn): Make use of `comp-common-supertype' to
identify the common supertype to be propagated.
Add a new pass to rewrite conditional branches. This is introducing
and placing a new LIMPLE operator 'assume' in use by fwprop to
propagate conditional branch test informations on target basic blocks.
* lisp/emacs-lisp/comp.el (comp-passes): Add `comp-cond-rw'.
(comp-limple-assignments): Add `assume' operator.
(comp-emit-assume, comp-cond-rw-target-slot, comp-cond-rw-func)
(comp-cond-rw): Add new functions.
(comp-fwprop-insn): Update to pattern match `assume' insns.
* src/comp.c (emit_limple_insn): Add for `assume'.
(syms_of_comp): Define 'Qassume' symbol.
Since a supplied test function can do anything, assoc is not
side-effect-free (bug#44018). However, with only two arguments it is
pure and should be optimised accordingly.
* lisp/emacs-lisp/byte-opt.el (side-effect-free-fns): Remove 'assoc'.
(byte-optimize-assoc): Constant-propagate through 2-arg assoc calls.
* test/lisp/emacs-lisp/bytecomp-tests.el
(byte-opt-testsuite-arith-data): Add test cases.
* lisp/emacs-lisp/unsafep.el:
Add comment explaining the policy for which forms can be considered
'safe' in the sense of unsafep. Remove ones that didn't make the cut:
play-sound-file (large attack surface)
catch, throw (alter program flow, inject data)
replace-regexp-in-string (execute arbitary code)
error, signal (deceptive messages)
* test/lisp/emacs-lisp/unsafep-tests.el (unsafep-tests--unsafe):
Add test cases.
* etc/NEWS: Announce the change.
Per bug#43609, elisp-eldoc-documentation-function is again in master,
but since it's now officially obsoleted, this backward compatibility
shim in eldoc--eval-expression-setup shouldn't unnecessarily trigger
warnings in master's code.
* lisp/emacs-lisp/eldoc.el (eldoc--eval-expression-setup): Shoosh
by-compilation warning.
Fixes: bug#44334
* lisp/emacs-lisp/eldoc.el (eldoc-doc-buffer): No longer take
INTERACTIVE arg. Show buffer if invisible.
(eldoc--format-doc-buffer): Don't change buffer visibility.
(eldoc-display-in-buffer): Show buffer if invisible if by calling
eldoc-doc-buffer.
* lisp/emacs-lisp/text-property-search.el
(text-property-search-forward, text-property-search-backward): Doc fix
to clarify placement of point after search.
* test/lisp/emacs-lisp/text-property-search-tests.el
(text-property-search--pos-test): New defun.
(text-property-search-forward-point-at-beginning)
(text-property-search-backward-point-at-end): New test.
* lisp/emacs-lisp/shortdoc.el (text-property-search): Require.
(shortdoc-mode): New major mode.
(shortdoc-mode-map): New variable.
(shortdoc--goto-section): New macro.
(shortdoc-next, shortdoc-previous, shortdoc-next-section)
(shortdoc-previous-section): New commands.
(shortdoc-display-group): Use new shortdoc-models. Propertize
section header.
(shortdoc--display-function): Propertize function header.
* lisp/emacs-lisp/ert.el (ert--pp-with-indentation-and-newline):
Escape control characters which would otherwise be blasted directly to
the terminal (when running noninteractively) with unpleasant results.
* lisp/emacs-lisp/bytecomp.el (byte-compile-file): Bind
`byte-compiler-error-flag' instead of setting it (bug#41065).
This fixes a problem of "leaking" the flag when compiling
something that then compiles something that errors out (i.e., an
"inner" compile).
* doc/lispref/modes.texi (Defining Minor Modes): Describe the new
:predicate keyword (bug#44232).
* lisp/emacs-lisp/easy-mmode.el (define-globalized-minor-mode):
Allow a new :predicate keyword.
(easy-mmode--globalized-predicate-p): New function.
* lisp/emacs-lisp/shortdoc.el (shortdoc-example): Removed.
(shortdoc-section): Remove colors.
(shortdoc-separator): New face.
(shortdoc-display-group, shortdoc--display-function): Don't use
background colours, because that makes things harder to read.
Separate with a horizontal line instead.
* lisp/emacs-lisp/comp.el (comp-emit-set-call-subr): Rework based
on the fact that the subr can now be redefined.
* test/src/comp-tests.el (primitive-redefine-compile-44221):
New testcase.
While there are currently no known security holes in play-sound-file,
the attack surface is considerable and historically audio file
processing has had more than its share of security problems; the
benefit to risk ratio is low.
* lisp/emacs-lisp/unsafep.el: Don't mark play-sound-file as safe.
* lisp/emacs-lisp/comp.el (comp-last-scanned-async-output): New
buffer local variable.
(comp-accept-and-process-async-output): New function.
(comp-run-async-workers): Use
`comp-accept-and-process-async-output'.
* lisp/emacs-lisp/checkdoc.el (checkdoc-autofix-ask-replace):
Ensure that the end-of-doc-string marker is really at the end,
even if we replace the final " char in the string (bug#44201).
* lisp/emacs-lisp/comp.el (comp-compile-ctxt-to-file): Remove
`comp-dry-run' guard.
(comp-final): And move it here so is effective for interactive
sessions and non.
Per bug#43543. Now uses logical lines, not visual lines.
* lisp/emacs-lisp/eldoc.el (eldoc-echo-area-use-multiline-p): Rework
semantics.
(eldoc--echo-area-substring): New helper.
(eldoc--echo-area-prefer-doc-buffer-p): New helper.
(eldoc-display-in-echo-area): Rework using new helpers.
The new name makes it consistent with other variables controlling the
display of ElDoc documentation in the echo area.
Per bug#43543.
* etc/NEWS (Eldoc): Rename eldoc-display-truncation-message to
eldoc-echo-area-display-truncation-message.
* lisp/emacs-lisp/eldoc.el
(eldoc-echo-area-display-truncation-message): Rename from
eldoc-display-truncation-message.
(eldoc-display-in-echo-area): Use new variable name.
This reverts commit a497b8e4a4.
This conversion to lexical-binding broke the eval specification,
documented in the ELisp manual. We will probably want to add tests
for that before we can confidently convert this to lexical-binding.
Problem reported by Mattias Engdegård <mattiase@acm.org>.
* lisp/emacs-lisp/bindat.el: Use lexical-binding.
(bindat-raw, bindat-idx, bindat-unpack, bindat-pack): Adjust for
lexical-binding.
(bindat--unpack-group, bindat--length-group): Fix byte-compiler
warning about unused variables last and vlen.
(bindat--unpack-group, bindat--length-group, bindat--pack-group)
(bindat-format-vector): Quote function symbols as such.
This is really for internal use only by deferred compilation.
* lisp/emacs-lisp/comp.el (comp-trampoline-compile)
(comp-run-async-workers): Make use of `comp--native-compile'.
(comp--native-compile): New function.
(native-compile, batch-native-compile): Make use of
`comp--native-compile'.
* lisp/progmodes/dcl-mode.el (dcl-mode):
* lisp/progmodes/idlw-complete-structtag.el: Recommend
with-eval-after-load instead of load-hooks.
* lisp/calc/calc-ext.el (calc-ext-load-hook):
* lisp/emacs-lisp/bytecomp.el (bytecomp-load-hook):
* lisp/emacs-lisp/cl-extra.el (cl-extra-load-hook):
* lisp/emacs-lisp/cl-macs.el (cl-macs-load-hook):
* lisp/emacs-lisp/cl-seq.el (cl-seq-load-hook):
* lisp/gnus/message.el (message-load-hook):
* lisp/gnus/nnheader.el (nnheader-load-hook):
* lisp/gnus/nnmail.el (nnmail-load-hook):
* lisp/progmodes/dcl-mode.el (dcl-mode-load-hook):
* lisp/textmodes/tex-mode.el (tex-mode-load-hook):
* lisp/whitespace.el (whitespace-load-hook): Obsolete for
with-eval-after-load. Note that these variables are never declared,
but the byte-compiler will still warn about them if used.
