* doc/lispref/eval.texi (Eval): Discourage the use of `eval'.
Document its new `lexical' argument.
* doc/lispref/variables.texi (Defining Variables): Mention the new meaning of `defvar'.
(Lexical Binding): New sub-section.
* lisp/Makefile.in (BIG_STACK_DEPTH, BIG_STACK_OPTS, BYTE_COMPILE_FLAGS):
New variables.
(compile-onefile, .el.elc, compile-calc, recompile): Use them.
(COMPILE_FIRST): Add macroexp and cconv.
* lisp/makefile.w32-in: Mirror changes in Makefile.in.
* lisp/vc/cvs-status.el:
* lisp/vc/diff-mode.el:
* lisp/vc/log-edit.el:
* lisp/vc/log-view.el:
* lisp/vc/smerge-mode.el:
* lisp/textmodes/bibtex-style.el:
* textmodes/css.el:
* lisp/startup.el:
* lisp/uniquify.el:
* lisp/minibuffer.el:
* lisp/newcomment.el:
* lisp/reveal.el:
* lisp/server.el:
* lisp/mpc.el:
* lisp/emacs-lisp/smie.el:
* lisp/doc-view.el:
* lisp/dired.el:
* lisp/abbrev.el: Use lexical binding.
* lisp/custom.el (custom-initialize-default, custom-declare-variable):
Use `defvar'.
* lisp/files.el (lexical-binding): Declare safe.
* lisp/help-fns.el (help-split-fundoc): Return nil if there's nothing else
than the arglist.
(help-add-fundoc-usage): Don't add `Not documented'.
(help-function-arglist): Handle closures, subroutines, and new
byte-code-functions.
(help-make-usage): Remove leading underscores.
(describe-function-1): Handle closures.
(describe-variable): Use special-variable-p for completion.
* lisp/simple.el (with-wrapper-hook, apply-partially): Move to subr.el.
* lisp/subr.el (apply-partially): Use new closures rather than CL.
(--dolist-tail--, --dotimes-limit--): Don't declare dynamic.
(dolist, dotimes): Use slightly different expansion for lexical code.
(functionp): Move to C.
(letrec): New macro.
(with-wrapper-hook): Use it and apply-partially instead of CL.
(eval-after-load): Preserve lexical-binding.
(save-window-excursion, with-output-to-temp-buffer): Turn them
into macros.
* lisp/emacs-lisp/advice.el (ad-arglist): Use help-function-arglist.
* lisp/emacs-lisp/autoload.el (make-autoload): Don't burp on trivial macros.
* lisp/emacs-lisp/byte-opt.el: Use lexical binding.
(byte-inline-lapcode): Remove (to bytecomp).
(byte-compile-inline-expand): Pay attention to inlining to/from
lexically bound code.
(byte-compile-unfold-lambda): Don't handle byte-code-functions
any more.
(byte-optimize-form-code-walker): Don't handle save-window-excursion
any more and don't call compiler-macros.
(byte-compile-splice-in-already-compiled-code): Remove.
(byte-code): Don't inline any more.
(disassemble-offset): Receive `bytes' as argument rather than via
dynamic scoping.
(byte-compile-tag-number): Declare before first use.
(byte-decompile-bytecode-1): Handle new byte-codes, don't change
`return' even if make-spliceable.
(byte-compile-side-effect-and-error-free-ops): Add stack-ref, remove
obsolete interactive-p.
(byte-optimize-lapcode): Optimize new lap-codes.
Don't trip up on new form of `byte-constant' lap code.
* lisp/emacs-lisp/byte-run.el (make-obsolete): Don't set the `byte-compile'
handler any more.
* lisp/emacs-lisp/bytecomp.el: Use lexical binding instead of
a "bytecomp-" prefix. Macroexpand everything as a separate phase.
(byte-compile-initial-macro-environment):
Handle declare-function here.
(byte-compile--lexical-environment): New var.
(byte-stack-ref, byte-stack-set, byte-discardN)
(byte-discardN-preserve-tos): New lap codes.
(byte-interactive-p): Don't use any more.
(byte-compile-push-bytecodes, byte-compile-push-bytecode-const2):
New macros.
(byte-compile-lapcode): Use them and handle new lap codes.
(byte-compile-obsolete): Remove.
(byte-compile-arglist-signature): Handle new byte-code arg"lists".
(byte-compile-arglist-warn): Check late def of inlinable funs.
(byte-compile-cl-warn): Don't silence warnings for compiler-macros
since they should have been expanded by now.
(byte-compile--outbuffer): Rename from bytecomp-outbuffer.
(byte-compile-from-buffer): Remove unused second arg.
(byte-compile-preprocess): New function.
(byte-compile-toplevel-file-form): New function to distinguish
file-form calls from outside from file-form calls from hunk-handlers.
(byte-compile-file-form): Simplify.
(byte-compile-file-form-defsubst): Remove.
(byte-compile-file-form-defmumble): Simplify now that
byte-compile-lambda always returns a byte-code-function.
(byte-compile): Preprocess.
(byte-compile-byte-code-maker, byte-compile-byte-code-unmake):
Remove, not used any more.
(byte-compile-arglist-vars, byte-compile-make-lambda-lexenv)
(byte-compile-make-args-desc): New funs.
(byte-compile-lambda): Handle lexical functions. Always return
a byte-code-function.
(byte-compile-reserved-constants): New var, to make up room for
closed-over variables.
(byte-compile-constants-vector): Obey it.
(byte-compile-top-level): New args `lexenv' and `reserved-csts'.
(byte-compile-macroexpand-declare-function): New function.
(byte-compile-form): Call byte-compile-unfold-bcf to inline immediate
byte-code-functions.
(byte-compile-form): Check obsolescence here.
(byte-compile-inline-lapcode, byte-compile-unfold-bcf): New functions.
(byte-compile-variable-ref): Remove.
(byte-compile-dynamic-variable-op): New fun.
(byte-compile-dynamic-variable-bind, byte-compile-variable-ref)
(byte-compile-variable-set): New funs.
(byte-compile-discard): Add 2 args.
(byte-compile-stack-ref, byte-compile-stack-set)
(byte-compile-make-closure, byte-compile-get-closed-var): New funs.
(byte-compile-funarg, byte-compile-funarg-2): Remove, handled in
macroexpand-all instead.
(byte-compile-quote-form): Remove.
(byte-compile-push-binding-init, byte-compile-not-lexical-var-p)
(byte-compile-bind, byte-compile-unbind): New funs.
(byte-compile-let): Handle let* and lexical binding.
(byte-compile-let*): Remove.
(byte-compile-catch, byte-compile-unwind-protect)
(byte-compile-track-mouse, byte-compile-condition-case):
Handle a new :fun-body form, used for lexical scoping.
(byte-compile-save-window-excursion)
(byte-compile-with-output-to-temp-buffer): Remove.
(byte-compile-defun): Simplify.
(byte-compile-stack-adjustment): New fun.
(byte-compile-out): Use it.
(byte-compile-refresh-preloaded): Don't reload byte-compiler files.
* lisp/emacs-lisp/cconv.el: New file.
* lisp/emacs-lisp/cl-extra.el (cl-macroexpand-all): Properly quote CL
closures.
* lisp/emacs-lisp/cl-macs.el (cl-byte-compile-block)
(cl-byte-compile-throw): Remove.
(cl-block-wrapper, cl-block-throw): Use compiler-macros instead.
* lisp/emacs-lisp/cl.el (pushnew): Silence warning.
* lisp/emacs-lisp/disass.el (disassemble-internal): Handle new
`closure' objects.
(disassemble-1): Handle new byte codes.
* lisp/emacs-lisp/edebug.el (edebug-eval-defun)
(edebug-eval-top-level-form): Use eval-sexp-add-defvars.
(edebug-toggle): Avoid `eval'.
* lisp/emacs-lisp/eieio-comp.el: Remove.
* lisp/emacs-lisp/eieio.el (byte-compile-file-form-defmethod):
Don't autoload.
(eieio-defgeneric-form-primary-only-one): Use `byte-compile' rather
than the internal `byte-compile-lambda'.
(defmethod): Don't hide code under quotes.
(eieio-defmethod): New `code' argument.
* lisp/emacs-lisp/float-sup.el (pi): Don't declare as dynamically bound.
* lisp/emacs-lisp/lisp-mode.el (eval-last-sexp-1):
Use eval-sexp-add-defvars.
(eval-sexp-add-defvars): New fun.
* lisp/emacs-lisp/macroexp.el: Use lexical binding.
(macroexpand-all-1): Check obsolete macros. Expand compiler-macros.
Don't convert ' to #' without checking that it's indeed quoting
a lambda.
* lisp/emacs-lisp/pcase.el: Don't use destructuring-bind.
(pcase--memoize): Rename from pcase-memoize. Change weakness.
(pcase): Add `let' pattern.
Change memoization so it actually works.
(pcase-mutually-exclusive-predicates): Add byte-code-function-p.
(pcase--u1) <guard, pred>: Fix possible shadowing problem.
<let>: New case.
* src/alloc.c (Fmake_symbol): Init new `declared_special' field.
* src/buffer.c (defvar_per_buffer): Set new `declared_special' field.
* src/bytecode.c (Bstack_ref, Bstack_set, Bstack_set2, BdiscardN):
New byte-codes.
(exec_byte_code): New function extracted from Fbyte_code to handle new
calling convention for byte-code-functions. Add new byte-codes.
* src/callint.c (Fcall_interactively): Preserve lexical-binding mode for
interactive spec.
* src/doc.c (Fdocumentation, store_function_docstring):
* src/data.c (Finteractive_form): Handle closures.
* src/eval.c (Fsetq): Handle lexical vars.
(Fdefun, Fdefmacro, Ffunction): Make closures when needed.
(Fdefconst, Fdefvaralias, Fdefvar): Mark as dynamic.
(FletX, Flet): Obey lexical binding.
(Fcommandp): Handle closures.
(Feval): New `lexical' arg.
(eval_sub): New function extracted from Feval. Use it almost
everywhere where Feval was used. Look up vars in lexical env.
Handle closures.
(Ffunctionp): Move from subr.el.
(Ffuncall): Handle closures.
(apply_lambda): Remove `eval_flags'.
(funcall_lambda): Handle closures and new byte-code-functions.
(Fspecial_variable_p): New function.
(syms_of_eval): Initialize the Vinternal_interpreter_environment var,
but without exporting it to Lisp.
* src/fns.c (concat, mapcar1): Accept byte-code-functions.
* src/image.c (parse_image_spec): Use Ffunctionp.
* src/keyboard.c (eval_dyn): New fun.
(menu_item_eval_property): Use it.
* src/lisp.h (struct Lisp_Symbol): New field `declared_special'.
* src/lread.c (lisp_file_lexically_bound_p): New function.
(Fload): Bind Qlexical_binding.
(readevalloop): Remove `evalfun' arg.
Bind Qinternal_interpreter_environment.
(Feval_buffer): Bind Qlexical_binding.
(defvar_int, defvar_bool, defvar_lisp_nopro, defvar_kboard):
Mark as dynamic.
(syms_of_lread): Declare `lexical-binding'.
* src/window.c (Ftemp_output_buffer_show): New fun.
(Fsave_window_excursion):
* src/print.c (Fwith_output_to_temp_buffer): Move to subr.el.
* lisp/minibuffer.el (completion-table-dynamic): Optimize `boundaries'.
(completion-in-region-mode): New minor mode.
(completion-in-region): Use it.
(completion-in-region--data, completion-in-region-mode-map): New vars.
(completion-in-region--postch): New function.
(completion--capf-misbehave-funs, completion--capf-safe-funs): New vars.
(completion--capf-wrapper): New function.
(completion-at-point): Use it to track well-behavedness of hook functions.
(completion-help-at-point): New command.
(--dolist-tail--, --dotimes-limit--): Don't declare dynamically bound.
(dolist): Use a more efficient form for lexical-binding.
(dotimes): Use a cleaner semantics for lexical-binding.
* lisp/emacs-lisp/edebug.el (edebug-eval-top-level-form):
Use eval-sexp-add-defvars.
gnus.texi (Listing Groups): Document gnus-group-list-ticked.
gssapi.el (open-gssapi-stream): Remove the last mentions of the IMAP stuff.
gnus-score.el (gnus-score-string): Fix calling convention of `gnus-simplify-buffer-fuzzy' after last patches.
gnus-sum.el (gnus-update-marks): Don't send any marks updates to the server for articles we didn't get any headers for. This is a sanity check.
nnimap.el (nnimap-open-connection-1): Is the login responds with a new CAPABILITY, use it.
gnus-agent.el (gnus-agent-fetch-headers): Don't message if we're not downloading anything.
gnus.el (gnus-splash-svg-color-symbols): Removed superfluous `and'.
gnus.el (gnus-group-startup-message): Prefer svg file and replace colors.
(gnus-splash-svg-color-symbols): New function.
gnus-sum.el (gnus-simplify-buffer-fuzzy): Take the regexp explicitly instead of using the global gnus-simplify-subject-fuzzy-regexp.
(gnus-simplify-subject-fuzzy): Use the local gnus-simplify-subject-fuzzy-regex instead of the global one. This makes using this variable in group parameters work.
gnus-registry.el (gnus-registry-unfollowed-groups): Add "archive:sent" to the unfollowed group regex (for the recent Gnus archive:sent-YYYY-MM-DD groups).
(gnus-registry-split-fancy-with-parent): Bail out early in sender tracking if there are more than `gnus-registry-max-track-groups' matches.
message.el (message--yank-original-internal): New function to do the insertion cleanly inside eval in `message-yank-original'.
(message-yank-original): Use it.
standard-output while running the body.
* lisp/Makefile.in (COMPILE_FIRST): Remove pcase; it's not so important.
* lisp/startup.el: Fix up warnings, move lambda expressions
outside of quote.
* nnimap.el (nnimap-stream, nnimap-open-connection-1): Accept `network'
value.
* nntp.el (nntp-open-connection-function): Document the fact that some
values are not functions but are instead handled specially. Recognize
nntp-open-plain-stream value.
(nntp-open-connection): Recognize that value.
* proto-stream.el (open-protocol-stream): Bring back `network' type.
Make this the default type.
(proto-stream-open-plain): Rename from proto-stream-open-default.
(open-protocol-stream, proto-stream-open-starttls)
(proto-stream-open-tls, proto-stream-open-shell): Replace `default'
with `plain'.
possibility of overlay leakage by making them volatile.
* allout-widgets.el (allout-widgets-tally): Define as nil so the hash is
not shared between buffers. Mode initialization is responsible for giving
it a useful starting value.
(allout-item-span): Reduce possibility of overlay leakage by making them
volatile.
(allout-widgets-count-buttons-in-region): Add diagnostic function for
tracking down overlay leaks.
mm-view.el (mm-display-inline-fontify): Use `set-normal-mode' with local variables disabled rather than `normal-mode'.
imap.el (imap-shell-open, imap-process-connection-type): Use imap-process-connection-type for 'shell' streams as well as Kerberos, SSL, other subprocesses.
* lisp/gnus/proto-stream.el: Changes preparatory to merging open-protocol-stream
with open-network-stream.
(proto-stream-always-use-starttls): Option removed.
(open-protocol-stream): Return a process object by default. Provide a
new parameter :return-list specifying a list-type return value, which
now has the form (PROP . PLIST) instead of a fixed-length list. Change
:type `network' to `try-starttls', and `network-only' to `default'.
Make `default' the default, for compatibility with open-network-stream.
Handle the no-parameter case exactly as open-network-stream, with no
additional stream processing. Search plists using plist-get.
Explicitly add :end-of-commend parameter if it is missing.
(proto-stream-open-default): Renamed from
proto-stream-open-network-only. Return 'default as the type.
(proto-stream-open-starttls): Rename from proto-stream-open-network.
Use plist-get. Don't return `tls' as the type if STARTTLS negotiation
failed. Always return a list with a (possibly dead) process as the
first element, for compatibility with open-network-stream.
(proto-stream-open-tls): Use plist-get. Always return a list.
(proto-stream-open-shell): Return `default' as connection type.
(proto-stream-capability-open): Use plist-get.
(proto-stream-eoc): Function deleted.
* lisp/gnus/nnimap.el (nnimap-stream, nnimap-open-connection)
(nnimap-open-connection-1): Handle renaming of :type parameter for
open-protocol-stream.
(nnimap-open-connection-1): Pass a :return-list parameter
open-protocol-stream to obtain a list return value. Parse this list
using plist-get.
* lisp/gnus/nntp.el (nntp-open-connection): Handle renaming of :type parameter
for open-protocol-stream. Accept open-protocol-stream return value
that is a subprocess object instead of a list. Handle the case of a
dead returned process.
* lisp/minibuffer.el (completion--flush-all-sorted-completions):
Remove itself from hook.
(completion-at-point): Let the functions perform the completion
immediately and return nil or t.
* lisp/comint.el (comint-dynamic-complete-functions): Now identical to
completion-at-point-functions.
(comint-dynamic-list-input-ring): Remove unused var `index'.
(comint--match-partial-filename, comint--unquote&expand-filename):
New funs, split from comint-match-partial-filename.
(comint-dynamic-complete): Use completion-at-point.
(comint-dynamic-complete-filename): Use comint--match-partial-filename.
* lisp/startup.el: Convert to lexical-binding. Mark unused arguments.
(command-line-1): Get rid of the "cl1-" prefix now that we use lexical
scoping instead.
* lisp/emacs-lisp/float-sup.el (pi): Leave it lexically scoped.
* lisp/emacs-lisp/lisp-mode.el (eval-sexp-add-defvars): New fun.
(eval-last-sexp-1): Use eval-sexp-add-defvars.
* lisp/emacs-lisp/edebug.el (edebug-eval-defun): Use eval-sexp-add-defvars.
* lisp/emacs-lisp/cconv.el (cconv--analyse-function):
Fix `report-error/log-warning' mixup.
* lisp/emacs-lisp/byte-opt.el (byte-inline-lapcode): Move to bytecomp.el.
(byte-compile-inline-expand): Inline all bytecompiled functions.
Unify the inlining code of the lexbind and dynbind interpreted functions.
(byte-compile-unfold-lambda): Don't handle byte-compiled functions at all.
(byte-optimize-form-code-walker): Don't optimize byte-compiled inlined
functions here.
(byte-compile-splice-in-already-compiled-code): Remove.
(byte-code): Don't optimize it any more.
(byte-decompile-bytecode-1): Remove unused bytedecomp-bytes.
Leave `byte-return's even for `make-spliceable'.
* lisp/emacs-lisp/bytecomp.el (byte-compile-file-form-defmumble):
byte-compile-lambda now always returns a byte-code-function.
(byte-compile-byte-code-maker, byte-compile-byte-code-unmake)
(byte-compile-closure): Remove.
(byte-compile-lambda): Always return a byte-code-function.
(byte-compile-top-level): Don't handle `byte-code' forms specially.
(byte-compile-inline-lapcode): New function, taken from byte-opt.el.
(byte-compile-unfold-bcf): New function.
(byte-compile-form): Use it to optimize inline byte-code-functions.
(byte-compile-function-form, byte-compile-defun): Simplify.
(byte-compile-defmacro): Don't bother calling
byte-compile-byte-code-maker.
(mm-inline-text): Render normal text with fontification whenever possible.
gnus-sum.el (gnus-summary-save-parts-1):
gnus-art.el (gnus-article-browse-html-save-cid-content)
(gnus-article-browse-html-parts, gnus-mime-delete-part)
(gnus-mime-copy-part, gnus-mime-inline-part, gnus-insert-mime-button):
Use `mm-handle-filename'.
mm-util.el (mm-handle-filename): New function, return the filename of an handle.
* image.el (image-type-file-name-regexps): Make it variable.
`imagemagick-register-types' modifies it, and the user may want
to add new extensions for known image types.
(imagemagick-register-types): Throw error if not using ImageMagick.
* lisp/custom.el (custom--inhibit-theme-enable): Make it affect only
custom-theme-set-variables and custom-theme-set-faces.
(provide-theme): Ignore custom--inhibit-theme-enable.
(load-theme): Enable the theme explicitly if NO-ENABLE is non-nil.
(custom-enabling-themes): Delete variable.
(enable-theme): Accept only loaded themes as arguments. Ignore
the special custom-enabled-themes variable.
(custom-enabled-themes): Forbid themes from setting this.
Eliminate use of custom-enabling-themes.
(custom-push-theme): Quote "changed" custom var entry.
