Simplify (let ((X1 E1) ... (Xn En)) Xn)
=> (progn E1 ... En)
and (let* ((X1 E1) ... (Xn En)) Xn)
=> (let* ((X1 E1) ... (Xn-1 En-1)) En)
and similarly the case where the body is a constant, extending a
previous optimisation that only applied to the constant nil.
This reduces the number of bound variables, shortens the code, and
enables further optimisations.
* lisp/emacs-lisp/byte-opt.el (byte-optimize-letX): Rewrite using
`pcase` and add the aforementioned transformations.
* test/lisp/emacs-lisp/bytecomp-tests.el (bytecomp-tests--test-cases):
Add test cases.
* lisp/emacs-lisp/byte-opt.el (byte-optimize-let-form): Move warnings...
* lisp/emacs-lisp/cconv.el (cconv-convert): ...here, which is an
overall better place (closer to the front-end).
Rewrite (prog1 CONST FORMS...) => (progn FORMS... CONST)
where CONST is a compile-time constant, because putting the value last
allows the lapcode peephole pass to do important improvements like
branch elimination. Also use progn instead of prog1 for `ignore`.
* lisp/emacs-lisp/byte-opt.el (byte-optimize-form-code-walker):
New `prog1` and `ignore` transforms.
* lisp/emacs-lisp/byte-opt.el (byte-optimize-form-code-walker):
Remove for-effect uses of lexical variables. We previously relied on
this being done by the lapcode peephole optimiser but at source level
it enables more optimisation opportunities.
Keywords are elided for the same reason.
Make the optimiser aware of lexical arguments. Otherwise we cannot
know for sure whether a variable is lexical or dynamic during
traversal.
* lisp/emacs-lisp/byte-opt.el (byte-optimize-one-form): New optimiser
entry point, replacing the recursive byte-optimize-form.
* lisp/emacs-lisp/bytecomp.el (byte-optimize-one-form): Autoload.
(byte-compile-keep-pending, byte-compile-top-level):
Use byte-optimize-one-form.
Reported by Gregor Zattler.
* lisp/emacs-lisp/bytecomp.el (byte-compile--cond-switch-prefix):
Be more careful in the selection of equality.
* test/lisp/emacs-lisp/bytecomp-tests.el (bytecomp-tests--test-cases):
Add test case.
* doc/lispref/files.texi (Directory Names): Document it.
* lisp/emacs-lisp/shortdoc.el (file-name): Add new example.
* src/fileio.c (Fdirectory_append): Change the function to take an
arbitrary number of components.
Wrong number of arguments in inlining function calls (to `defsubst` or
explicitly using `inline`) did not result in warnings, or in very
cryptic ones.
* lisp/emacs-lisp/byte-opt.el (byte-compile-inline-expand): Add calls
to `byte-compile--check-arity-bytecode`.
* lisp/emacs-lisp/bytecomp.el (byte-compile-emit-callargs-warn)
(byte-compile--check-arity-bytecode): New functions.
(byte-compile-callargs-warn): Use factored-out function.
* test/lisp/emacs-lisp/bytecomp-resources/warn-callargs-defsubst.el:
* test/lisp/emacs-lisp/bytecomp-tests.el ("warn-callargs-defsubst.el"):
New test case.
* lisp/emacs-lisp/cl-lib.el: Move all the generalized variable
specifications from cl-lib.el...
* lisp/emacs-lisp/gv.el: ... to gv.el. This will make things like
`(setf (getenv "FOO") "BAR")' work without requiring anything,
since `setf' lives in gv.el (bug#49651).
Use it to obey `byte-compile-warnings`.
(macroexp--warn-wrap): Add arg `category`.
(macroexp-macroexpand, macroexp--expand-all): Use it.
* lisp/emacs-lisp/cconv.el (cconv--convert-funcbody, cconv-convert):
Mark the warnings as `lexical`.
* lisp/emacs-lisp/eieio-core.el (eieio-oref, eieio-oref-default)
(eieio-oset-default):
* lisp/emacs-lisp/eieio.el (defclass): Adjust to new calling convention.
Found by Pip Cet.
* lisp/emacs-lisp/byte-opt.el (byte-optimize-quote): Fix mistake that
made this optimiser ineffective at removing quoting of nil, t, and
keywords. The only obvious consequence is that we no longer need...
(byte-optimize-form): ...a 'nil => nil normalising step here; remove.
(byte-optimize-form-code-walker): Make the compiler warn about (quote).
* lisp/emacs-lisp/bytecomp.el (byte-compile--cond-switch-prefix):
Treat (not VAR) and (null VAR) as (eq VAR nil) when computing the
extent of switch ops.
* lisp/emacs-lisp/package.el (package-install-from-buffer): Allow
installing files with different line ending conventions (Unix, DOS
and Macos) (bug#48137).
* lisp/simple.el (separator-line): Tweak definition to not be so
overwhelming.
* lisp/emacs-lisp/shortdoc.el (shortdoc-separator): Removed.
(shortdoc-display-group): Use make-separator-line.
* lisp/emacs-lisp/shortdoc.el (shortdoc--goto-section): Adjust to
changes in how the text properties are inserted in 22a5482ab6
(bug#49605). Also make into a regular function.
* lisp/emacs-lisp/eieio.el (initialize-instance):
Do not evaluate initform of a slot when initarg for the slot is provided,
according to the following secitons of CLHS:
- Object Creation and Initialization
- Initialization Arguments
- Defaulting of Initialization Arguments
- Rules for Initialization Arguments
* test/lisp/emacs-lisp/eieio-etests/eieio-tests.el:
Add corresponding tests
Fix a typo
* lisp/emacs-lisp/shortdoc.el (shortdoc-display-group): Allow
taking an optional parameter to place point on a specific function.
(shortdoc--display-function): Go to the function in question in
the shortdoc buffer.
* lisp/emacs-lisp/tabulated-list.el (tabulated-list-sort): Allow
restoring the original order (bug#13411).
(tabulated-list--sort-by-column-name): Store the original order.
(tabulated-list--original-order): New buffer-local variable.
* lisp/emacs-lisp/re-builder.el (re-builder): Uses 'display-buffer'
with 'display-buffer-in-direction' to display the reb-buffer. This
allow user-customizations and using it on not splitables windows.
Add a dedication to its window so killing this buffer quit the window.
* lisp/emacs-lisp/bytecomp.el (byte-compile--wide-docstring-p):
Avoid constructing an invalid regexp during byte-compilation by
limiting the number of columns to the current RE_DUP_MAX of 65535.
This protects against pathological values of fill-column, for
example (bug#49426).
* doc/lispref/tips.texi (Library Headers): Improve wording.
* lisp/emacs-lisp/lisp-mnt.el (lm-maintainers): New function.
(lm-maintainer): Make obsolete in favor of lm-maintainer.
(lm-verify): Use lm-maintainers.
(lm-report-bug): Use lm-maintainers.
Remove redundant args `collection` and `predicate` which were always
equal to `minibuffer-completion-table` and
`minibuffer-completion-predicate` anyway.
(minibuffer-complete-word):
* lisp/emacs-lisp/crm.el (crm-complete-word): Simplify accordingly.
This makes test errors unquestionably more readable. The change also
makes FF print as \f; other controls still use octal escapes.
* lisp/emacs-lisp/ert.el (ert--pp-with-indentation-and-newline):
Run `pp` with `pp-escape-newlines` set to `t`.
* lisp/emacs-lisp/find-func.el (find-function--defface): New
function (bug#30230).
(find-function-regexp-alist): Use it to skip past definitions
inside comments and strings.
(cl--plist-remove): Remove.
(cl--plist-to-alist): New function.
(cl-struct-define): Use it to convert slots's properties to the
format expected by `cl-slot-descriptor`.
* lisp/emacs-lisp/cl-extra.el (cl--describe-class-slots): Revert last
changes, not needed any more.
* lisp/emacs-lisp/ert.el (ert--expand-should-1): If the predicate form
signals an error, don't call an explainer because the arguments passed
(the error and error argument, respectively) do not make any sense to
the explainer at all.
