* lisp/vc/log-edit.el (log-edit-empty-buffer-p): New function.
(log-edit-insert-cvs-template, log-edit-insert-cvs-rcstemplate):
Use log-edit-empty-buffer-p.
* 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.
Tiny change; note that author said he placed it in the public domain.
(If this wasn't a tiny change, we would still need paperwork.)
* lisp/vc/ediff-init.el (ediff-use-faces, ediff-highlight-all-diffs):
Move ediff-defvar-local calls after defcustoms.
* lisp/emacs-lisp/cconv.el: Compute freevars in cconv-analyse.
(cconv-mutated, cconv-captured): Remove.
(cconv-captured+mutated, cconv-lambda-candidates): Don't give them
a global value.
(cconv-freevars-alist): New var.
(cconv-freevars): Remove.
(cconv--lookup-let): Remove.
(cconv-closure-convert-function): Extract from cconv-closure-convert-rec.
(cconv-closure-convert-rec): Adjust to above changes.
(fboundp): New function.
(cconv-analyse-function, form): Rewrite.
* lisp/emacs-lisp/bytecomp.el (byte-compile-initial-macro-environment):
Handle declare-function here.
(byte-compile-obsolete): Remove.
(byte-compile-arglist-warn): Check late defsubst here.
(byte-compile-file-form): Simplify.
(byte-compile-file-form-defsubst): Remove.
(byte-compile-macroexpand-declare-function): Rename from
byte-compile-declare-function, turn it into a macro-expander.
(byte-compile-normal-call): Check obsolescence.
(byte-compile-quote-form): Remove.
(byte-compile-defmacro): Revert to trunk's definition which seems to
work just as well and handles `declare'.
* lisp/emacs-lisp/byte-run.el (make-obsolete): Don't modify byte-compile.
* lisp/Makefile.in (BIG_STACK_DEPTH): Increase to 1200.
(compile-onefile): Pass $(BIG_STACK_OPTS) before "-l bytecomp".
* lisp/emacs-lisp/macroexp.el: Use lexbind.
(macroexpand-all-1): Check macro obsolescence.
* lisp/vc/diff-mode.el: Use lexbind.
* lisp/follow.el (follow-calc-win-end): Simplify.
* vc/vc-bzr.el (vc-bzr--branch-conf): Function deleted.
(vc-bzr-branch-conf): New function, similar to vc-bzr--branch-conf
but returning an alist. Ignore comments in bzr conffile.
(vc-bzr-pull, vc-bzr-merge-branch): Use vc-bzr-branch-conf.
(vc-bzr-error-regex-alist): New var.
(vc-bzr-merge-branch): Use it to highlight the pull/merge buffer.
* progmodes/compile.el (compilation--flush-directory-cache):
Handle the case where cdr of compilation--flush-directory-cache
points to no buffer, which can occur if we previously switched to
compilation-mode in a pregenerated buffer.
* vc/vc-dispatcher.el (vc-do-async-command): Bind
inhibit-read-only to t.
* lisp/vc/vc-git.el (vc-git-root-log-format): New option for
customizing log format.
(vc-git-print-log, vc-git-log-outgoing, vc-git-log-incoming)
(vc-git-log-view-mode): Use it.
(vc-git-expanded-log-entry): New function.
(vc-git-log-view-mode): Use it. Truncate lines in root log.
* lisp/vc/vc-hg.el (vc-hg-root-log-template): New option for
customizing log format.
(vc-hg-print-log): Use it.
(vc-hg-expanded-log-entry): New function.
(vc-hg-log-view-mode): Use vc-hg-root-log-template and
vc-hg-expanded-log-entry. Truncate lines in root log.
* lisp/vc/vc-bzr.el (vc-bzr-log-view-mode): Truncate lines in root log.
* lisp/vc/log-view.el (log-view-mode-menu): Add
log-view-toggle-entry-display.
* lisp/vc/log-view.el: New command log-view-toggle-entry-display for
toggling log entries between concise and detailed forms.
(log-view-toggle-entry-display): New command.
(log-view-mode-map): Bind RET to it.
(log-view-expanded-log-entry-function): New variable.
(log-view-current-entry, log-view-inside-comment-p)
(log-view-current-tag): New functions.
(log-view-toggle-mark-entry): Use log-view-current-entry and
log-view-end-of-defun instead of searching directly with
log-view-message-re.
(log-view-end-of-defun): Likewise. Add optional ARG for
compatibility with end-of-defun.
(log-view-end-of-defun): Ignore comments and VC buttons.
* lisp/vc/vc-bzr.el (vc-bzr-expanded-log-entry): New function.
(vc-bzr-log-view-mode): Use log-view-expanded-log-entry-function.
* lisp/vc/vc.el (vc-print-log-setup-buttons): Instead of using the
widget library for buttons, just use button.el.
* lisp/vc/log-view.el (log-view-mode-map): Don't inherit from
widget-keymap.
* vc/vc-dispatcher.el (vc-set-async-update): New function for
updating Dired or VC-dir buffers after async command completes.
* vc/vc-bzr.el (vc-bzr-async-command): Return the process buffer.
(vc-bzr-pull, vc-bzr-merge-branch): Use vc-set-async-update.
* vc/vc-git.el (vc-git-merge-branch): Add FETCH_HEAD to branch
completions if it exists. Use vc-set-async-update.
(vc-git-pull): Use vc-set-async-update.
* vc/vc-hg.el (vc-hg-pull): Fix default-contents arg to
read-shell-command. Use vc-set-async-update.
(vc-hg-merge-branch): Use vc-set-async-update.
* lisp/vc/vc.el (vc-pull): Make vc-update an alias for this, instead of
the other way around.
* lisp/vc/vc-git.el (vc-git-branches, vc-git-pull)
(vc-git-merge-branch): New functions.
(vc-git-history): New var.
* lisp/vc/vc-hg.el (vc-hg-history): New var.
(vc-hg-pull): Perform default pull if called via Lisp by vc-pull.
(vc-hg-merge-branch): New function.
* vc/vc-dispatcher.el (vc-do-async-command): New function.
* vc/vc-bzr.el (vc-bzr-async-command): Convert into a wrapper for
vc-do-async-command.
* vc/vc-bzr.el (vc-bzr-pull, vc-bzr-merge-branch): Callers changed.
