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2011-03-10  Stefan Monnier  <monnier@iro.umontreal.ca>

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	* emacs-lisp/bytecomp.el: Use lexical-binding.
	(byte-recompile-directory): Remove unused var `bytecomp-dest'.
	(byte-recompile-file): Use derived-mode-p.
	(byte-compile-from-buffer): Remove arg `bytecomp-filename'.
	Use byte-compile-current-file instead.
	(byte-compile-file): Adjust call accordingly.
	(bytecomp-outbuffer): Move declaration before first use.
	(for-effect): Declare dynamic.
	(byte-compile-file-form-defmumble): Use byte-compile-current-file.
	(byte-compile-top-level, byte-compile-out-toplevel, byte-compile-form):
	Move dyn-binding of for-effect from function argument to let binding.
	(byte-compile-out-toplevel): Don't both passing for-effect to
	byte-optimize-lapcode.
	(byte-compile-top-level-body, byte-compile-body):
	Rename for-effect -> for-effect-arg so it's lexical.

	* subr.el (functionp): Remove, now that it's in src/eval.c.

	* emacs-lisp/byte-opt.el: Use lexical-binding.
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	(for-effectm byte-compile-tag-number): Declare dynamic.
	(byte-optimize-form-code-walker, byte-optimize-form): Move dynamic
	binding of for-effect from function argument to let binding.
	(byte-decompile-bytecode-1): Move dynamic binding of bytedecomp-bytes
	from function argument to let binding.

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	* emacs-lisp/cconv.el (cconv--convert-function): Rename from
	cconv-closure-convert-function.
	(cconv-convert): Rename from cconv-closure-convert-rec.
	(cconv--analyse-use): Rename from cconv-analyse-use.
	(cconv--analyse-function): Rename from cconv-analyse-function.
	(cconv--analyse-use): Change some patterns to silence compiler.
	(cconv-convert, cconv--convert-function): Rewrite.
	* emacs-lisp/byte-opt.el (byte-compile-inline-expand): Adjust check for
	new byte-code representation.

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2011-03-06  Stefan Monnier  <monnier@iro.umontreal.ca>

	* emacs-lisp/bytecomp.el (byte-compile-arglist-signature):
	Handle integer arglist descriptor.
	(byte-compile-make-args-desc): Make integer arglist descriptor.
	(byte-compile-lambda): Use integer arglist descriptor to mark lexical
	byte-coded functions instead of an extra slot.
	* help-fns.el (help-add-fundoc-usage): Don't add a dummy doc.
	(help-split-fundoc): Return a nil doc if there was no actual doc.
	(help-function-arglist): Generate an arglist from an integer arg-desc.
	* emacs-lisp/pcase.el (pcase--memoize): Rename from pcase-memoize;
	Make only the key weak.
	(pcase): Change the key used in the memoization table, so it does not
	always get GC'd away.
	* emacs-lisp/macroexp.el (macroexpand-all-1): Slight change to the
	pcase pattern to generate slightly better code.

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2011-03-01  Stefan Monnier  <monnier@iro.umontreal.ca>

	* emacs-lisp/cconv.el (cconv-liftwhen): Increase threshold.
	(cconv-closure-convert-rec): Convert interactive spec in empty lexenv.
	(cconv-analyse-use): Improve unused vars warnings.
	(cconv-analyse-form): Analyze interactive spec in empty lexenv.
	* emacs-lisp/bytecomp.el (byte-compile-lambda): Always byte-compile
	the interactive spec in lexical-binding mode.
	(byte-compile-refresh-preloaded): Don't reload byte-compiler files.
	* custom.el (custom-initialize-default): Use defvar.
	(custom-declare-variable): Set the special-variable-p flag.
	* help-fns.el (help-make-usage): Drop leading underscores.
	* dired.el (dired-revert, dired-make-relative): Mark unused args.
	(dired-unmark-all-files): Remove unused var `query'.
	(dired-overwrite-confirmed): Declare.
	(dired-restore-desktop-buffer): Don't use dynamically scoped arg names.
	* mpc.el: Mark unused args.
	(mpc--faster-toggle): Remove unused var `songnb'.
	* server.el (server-kill-buffer-running): Move before first use.
	* minibuffer.el: Mark unused args.

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2011-02-26  Stefan Monnier  <monnier@iro.umontreal.ca>

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	* emacs-lisp/cconv.el (cconv-closure-convert-rec): Fix last change for
	λ-lift candidates that end up not λ-lifted.

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	* 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.
	* 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'.
	* emacs-lisp/byte-run.el (make-obsolete): Don't modify byte-compile.
	* Makefile.in (BIG_STACK_DEPTH): Increase to 1200.
	(compile-onefile): Pass $(BIG_STACK_OPTS) before "-l bytecomp".
	* emacs-lisp/macroexp.el: Use lexbind.
	(macroexpand-all-1): Check macro obsolescence.
	* vc/diff-mode.el: Use lexbind.
	* follow.el (follow-calc-win-end): Simplify.

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2011-02-25  Stefan Monnier  <monnier@iro.umontreal.ca>

	* emacs-lisp/bytecomp.el (byte-compile-lapcode): Handle new form of
	`byte-constant'.
	(byte-compile-close-variables, displaying-byte-compile-warnings):
	Add edebug spec.
	(byte-compile-toplevel-file-form): New fun, split out of
	byte-compile-file-form.
	(byte-compile-from-buffer): Use it to avoid applying cconv
	multiple times.
	(byte-compile): Only strip `function' if it's present.
	(byte-compile-lambda): Add `reserved-csts' argument.
	Use new lexenv arg of byte-compile-top-level.
	(byte-compile-reserved-constants): New var.
	(byte-compile-constants-vector): Obey it.
	(byte-compile-constants-vector): Handle new `byte-constant' form.
	(byte-compile-top-level): Add args `lexenv' and `reserved-csts'.
	(byte-compile-form): Don't check callargs here.
	(byte-compile-normal-call): Do it here instead.
	(byte-compile-push-unknown-constant)
	(byte-compile-resolve-unknown-constant): Remove, unused.
	(byte-compile-make-closure): Use `make-byte-code' rather than `curry',
	putting the environment into the "constant" pool.
	(byte-compile-get-closed-var): Use special byte-constant.
	* emacs-lisp/byte-opt.el (byte-optimize-form-code-walker): Handle new
	intermediate special form `internal-make-vector'.
	(byte-optimize-lapcode): Handle new form of `byte-constant'.
	* help-fns.el (describe-function-1): Don't handle funvecs.
	* emacs-lisp/macroexp.el (macroexpand-all-1): Only convert quote to
	function if the content is a lambda expression, not if it's a closure.
	* emacs-lisp/eieio-come.el: Remove.
	* emacs-lisp/eieio.el: Don't require eieio-comp.
	(defmethod): Do a bit more work to find the body and wrap it into
	a function before passing it to eieio-defmethod.
	(eieio-defmethod): New arg `code' for it.
	* emacs-lisp/debug.el (debugger-setup-buffer): Don't hide things in
	debugger backtrace.
	* emacs-lisp/cl-extra.el (cl-macroexpand-all): Use backquotes, and be
	more careful when quoting a function value.
	* emacs-lisp/cconv.el (cconv-freevars): Accept defvar/defconst.
	(cconv-closure-convert-rec): Catch stray `internal-make-closure'.
	* Makefile.in (COMPILE_FIRST): Compile pcase and cconv early.

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2011-02-21  Stefan Monnier  <monnier@iro.umontreal.ca>

	* emacs-lisp/cconv.el (cconv-closure-convert-rec): Let the byte
	compiler choose the representation of closures.
	(cconv--env-var): Remove.
	* emacs-lisp/bytecomp.el (byte-compile--env-var): New var.
	(byte-compile-make-closure, byte-compile-get-closed-var):
	New functions.

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2011-02-21  Stefan Monnier  <monnier@iro.umontreal.ca>

	* subr.el (with-output-to-temp-buffer): New macro.

	* simple.el (count-words-region): Don't use interactive-p.

	* minibuffer.el: Use lexical-binding.  Replace all uses of lexical-let.

	* emacs-lisp/eieio.el (eieio-defgeneric-form-primary-only-one):
	Call byte-compile rather than byte-compile-lambda.

	* emacs-lisp/eieio-comp.el (eieio-byte-compile-file-form-defmethod):
	Rename from byte-compile-file-form-defmethod.
	Don't byte-compile-lambda.
	(eieio-byte-compile-defmethod-param-convert): Rename from
	byte-compile-defmethod-param-convert.

	* emacs-lisp/cl-extra.el (cl-macroexpand-all): Don't assume that the
	value of (function (lambda ...)) is self-quoting.

	* emacs-lisp/cconv.el: Use lexical-binding.
	(cconv--lookup-let): Rename from cconv-lookup-let.
	(cconv-closure-convert-rec): Fix handling of captured+mutated
	arguments in defun/defmacro.

	* emacs-lisp/bytecomp.el (byte-compile-lapcode):
	Turn stack-ref-0 into dup.
	(byte-compile-form): Don't indirect-function since it can signal
	errors.
	(byte-compile-stack-ref, byte-compile-stack-set): Adjust to stack-refs
	being relative to top rather than to bottom in the byte-code.
	(with-output-to-temp-buffer): Remove.
	(byte-compile-with-output-to-temp-buffer): Remove.

	* emacs-lisp/byte-opt.el (byte-compile-side-effect-and-error-free-ops):
	Remove interactive-p.
	(byte-optimize-lapcode): Update optimizations now that stack-refs are
	relative to the top rather than to the bottom.

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2011-02-19  Stefan Monnier  <monnier@iro.umontreal.ca>

	* subr.el (save-window-excursion): New macro, moved from C.
	* emacs-lisp/lisp-mode.el (save-window-excursion): Don't touch.
	* emacs-lisp/cconv.el (cconv-closure-convert-rec, cconv-analyse-form):
	Don't handle save-window-excursion any more.
	* emacs-lisp/bytecomp.el (interactive-p, save-window-excursion):
	Don't use the byte-code any more.
	(byte-compile-form): Check macro expansion was done.
	(byte-compile-save-window-excursion): Remove.
	* emacs-lisp/byte-opt.el (byte-optimize-form-code-walker):
	Ignore save-window-excursion.  Don't macroepand any more.

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2011-02-18  Stefan Monnier  <monnier@iro.umontreal.ca>

	* emacs-lisp/pcase.el (pcase--expand, pcase--u, pcase--u1, pcase--q1):
	Avoid destructuring-bind which results in poorer code.

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2011-02-17  Stefan Monnier  <monnier@iro.umontreal.ca>

	* files.el (lexical-binding): Add a safe-local-variable property.

	* emacs-lisp/cl-macs.el (cl-byte-compile-block): Disable optimization
	in lexbind, because it needs a different implementation.

	* emacs-lisp/cconv.el (cconv--set-diff, cconv--set-diff-map)
	(cconv--map-diff, cconv--map-diff-elem, cconv--map-diff-set): New funs.
	(cconv--env-var): New constant.
	(cconv-closure-convert-rec): Use it and use them.  Fix a typo that
	ended up forgetting to remove entries from lmenvs in `let'.
	For `lambda' use the outer `fvrs' when building the closure and don't
	forget to remove `vars' from the `emvrs' and `lmenvs' of the body.

	* emacs-lisp/bytecomp.el (byte-compile-arglist-warn):
	Correctly extract arglist from `closure's.
	(byte-compile-cl-warn): Compiler-macros are run earlier now.
	(byte-compile-top-level): Bind byte-compile-lexical-environment to nil,
	except for lambdas.
	(byte-compile-form): Don't run the compiler-macro expander here.
	(byte-compile-let): Merge with byte-compile-let*.
	Don't preserve-body-value if the body's value was discarded.

	* emacs-lisp/byte-opt.el (byte-inline-lapcode): Check how many elements
	are added to the stack.
	(byte-compile-splice-in-already-compiled-code): Don't touch lexical nor
	byte-compile-depth now that byte-inline-lapcode does it for us.
	(byte-compile-inline-expand): Don't inline dynbind byte code into
	lexbind code, since it has to be done differently.

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2011-02-12  Stefan Monnier  <monnier@iro.umontreal.ca>

	* emacs-lisp/byte-lexbind.el: Delete.

	* emacs-lisp/bytecomp.el (byte-compile-current-heap-environment)
	(byte-compile-current-num-closures): Remove vars.
	(byte-vec-ref, byte-vec-set): Remove byte codes.
	(byte-compile-arglist-vars, byte-compile-make-lambda-lexenv): Move from
	byte-lexbind.el.
	(byte-compile-lambda): Never build a closure.
	(byte-compile-closure-code-p, byte-compile-make-closure): Remove.
	(byte-compile-closure): Simplify.
	(byte-compile-top-level): Don't mess with heap environments.
	(byte-compile-dynamic-variable-bind): Always maintain
	byte-compile-bound-variables.
	(byte-compile-variable-ref, byte-compile-variable-set): Always just use
	the stack for lexical vars.
	(byte-compile-push-binding-init): Simplify.
	(byte-compile-not-lexical-var-p): New function, moved from cconv.el.
	(byte-compile-bind, byte-compile-unbind): New functions, moved and
	simplified from byte-lexbind.el.
	(byte-compile-let, byte-compile-let*): Simplify.
	(byte-compile-condition-case): Don't add :fun-body to the bound vars.
	(byte-compile-defmacro): Simplify.

	* emacs-lisp/cconv.el (cconv-not-lexical-var-p): Remove.
	(cconv-freevars, cconv-analyse-function, cconv-analyse-form):
	Use byte-compile-not-lexical-var-p instead.

	* help-fns.el (describe-function-1): Fix paren typo.

	* emacs-lisp/byte-opt.el (byte-compile-side-effect-free-ops)
	(byte-optimize-lapcode): Remove byte-vec-ref and byte-vec-set.

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2011-02-11  Stefan Monnier  <monnier@iro.umontreal.ca>

	* emacs-lisp/cconv.el (cconv-closure-convert): Drop `toplevel' arg.
	(cconv-closure-convert-toplevel): Remove.
	(cconv-lookup-let): New fun.
	(cconv-closure-convert-rec): Don't bother with defs-are-legal.
	Use :fun-body to handle special forms that require closing their forms.

	* emacs-lisp/bytecomp.el (byte-compile-file-form, byte-compile):
	Use cconv-closure-convert instead of cconv-closure-convert-toplevel.
	(byte-compile-lambda, byte-compile-make-closure):
	* emacs-lisp/byte-lexbind.el (byte-compile-maybe-push-heap-environment):
	Make sure cconv did its job.

	* emacs-lisp/byte-opt.el (byte-optimize-lapcode): Check stack-depth
	before using it.

	* dired.el (dired-desktop-buffer-misc-data): Don't use a dynamic var as
	function argument.

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2011-02-11  Stefan Monnier  <monnier@iro.umontreal.ca>

	* emacs-lisp/bytecomp.el (byte-compile-lambda): Fix `fun' that was not
	renamed to `bytecomp-fun'.

	* emacs-lisp/byte-lexbind.el (byte-compile-lforminfo-analyze):
	Understand the :fun-body case for catch, save-window-excursion, and
	condition-case.
	(byte-compile-maybe-push-heap-environment): No need when nclosures is
	zero and byte-compile-current-num-closures is -1.

	* emacs-lisp/cconv.el (cconv-not-lexical-var-p): New function.
	(cconv-freevars): Use it.
	(cconv-closure-convert-rec): Avoid `position'.
	(cconv-analyse-function): New function.
	(cconv-analyse-form): Use it.  `inclosure' can't be nil any more.
	Check lexical vars at let-binding time rather than when referenced.
	For defuns to be in an empty environment and lambdas to take lexical args.
	Pay attention to the need to build closures in catch, unwind-protect,
	save-window-excursion, condition-case, and track-mouse.
	Fix defconst/defvar handling.

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2011-02-10  Stefan Monnier  <monnier@iro.umontreal.ca>

	* emacs-lisp/cconv.el (cconv-mutated, cconv-captured)
	(cconv-captured+mutated, cconv-lambda-candidates): Fix up declaration.
	(cconv-freevars): Minor cleanup.  Fix handling of the error var in
	condition-case.

	* emacs-lisp/bytecomp.el (byte-compile-catch)
	(byte-compile-unwind-protect, byte-compile-track-mouse)
	(byte-compile-condition-case, byte-compile-save-window-excursion):
	Provide a :fun-body alternative, so that info can be propagated from the
	surrounding context, as is the case for lexical scoping.

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2011-02-10  Igor Kuzmin  <kuzminig@iro.umontreal.ca>

	* emacs-lisp/cconv.el: New file.
	* emacs-lisp/bytecomp.el: Use cconv.
	(byte-compile-file-form, byte-compile):
	Call cconv-closure-convert-toplevel when requested.
	* server.el:
	* mpc.el:
	* emacs-lisp/pcase.el:
	* doc-view.el:
	* dired.el: Use lexical-binding.

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2010-12-27  Stefan Monnier  <monnier@iro.umontreal.ca>

	* emacs-lisp/bytecomp.el (byte-compile-track-mouse): Don't use #'.

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2010-12-15  Stefan Monnier  <monnier@iro.umontreal.ca>

	* emacs-lisp/edebug.el (edebug-eval-defun, edebug-eval):
	* emacs-lisp/lisp-mode.el (eval-last-sexp-1, eval-defun-1):
	* ielm.el (ielm-eval-input):
	* simple.el (eval-expression): Use new eval arg to obey lexical-binding.

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2010-12-14  Stefan Monnier  <monnier@iro.umontreal.ca>

	* emacs-lisp/bytecomp.el (byte-compile-condition-case): Use push.

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2010-12-13  Stefan Monnier  <monnier@iro.umontreal.ca>

	* subr.el (with-lexical-binding): Remove.

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2010-06-18  Stefan Monnier  <monnier@iro.umontreal.ca>

	* emacs-lisp/byte-lexbind.el (byte-compile-compute-lforminfo):
	specialp -> special-variable-p.

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2010-06-15  Stefan Monnier  <monnier@iro.umontreal.ca>

	* emacs-lisp/bytecomp.el (byte-compile-initial-macro-environment):
	Don't macroexpand before evaluating in eval-and-compile, in case
	`body's macro expansion uses macros and functions defined in itself.

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2010-06-14  Stefan Monnier  <monnier@iro.umontreal.ca>

	* emacs-lisp/bytecomp.el (byte-compile-check-variable):
	Update byte-compile-not-obsolete-var to byte-compile-not-obsolete-vars.

	* Makefile.in (.el.elc): Increase max-lisp-eval-depth.

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2006-12-04  Miles Bader  <miles@gnu.org>
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	* Makefile.in (COMPILE_FIRST_STACK_DEPTH): New variable.
	(compile, compile-always): Use it.
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2005-10-24  Miles Bader  <miles@gnu.org>
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	* subr.el (functionp): Re-remove.
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	* emacs-lisp/bytecomp.el (byte-compile-closure): Add optional
	ADD-LAMBDA argument, which we just pass to `byte-compile-lambda'.
	(byte-compile-defun): Use ADD-LAMBDA arg to `byte-compile-closure'
	instead of adding lambda ourselves.
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2004-08-09  Miles Bader  <miles@gnu.org>
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	Changes from merging the funvec patch:
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	* emacs-lisp/bytecomp.el (byte-compile-make-closure): Use `curry'
	instead of `vector' to create compiled closures.
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	Merge funvec patch.
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2004-05-20  Miles Bader  <miles@gnu.org>

	* subr.el (functionp): Use `funvecp' instead of
	`byte-compiled-function-p'.
	* help-fns.el (describe-function-1): Describe curried functions
	and other funvecs as such.
	(help-highlight-arguments): Only format things that look like a
	function.

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2004-04-29  Miles Bader  <miles@gnu.org>
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	* emacs-lisp/bytecomp.el (byte-compile-top-level): Add new entries
	to `byte-compile-lexical-environment' at the start, not end.
	(byte-compile-delay-out): Correctly default STACK-ADJUST to zero.
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	* emacs-lisp/byte-opt.el (byte-opt-update-stack-params):
	Don't crash on no-op lapcode entries (car is nil).
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	* emacs-lisp/byte-lexbind.el (byte-compile-make-lambda-lexenv):
	Push a lexvar onto lexenv, not a vinfo!
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2004-04-11  Miles Bader  <miles@gnu.org>
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	* emacs-lisp/bytecomp.el (byte-compile-top-level):
	Correctly analyze lexically-bound arguments.
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	* emacs-lisp/byte-lexbind.el (byte-compile-lforminfo-analyze):
	Use `append' instead of `nconc'.
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	* emacs-lisp/byte-lexbind.el (byte-compile-make-lvarinfo):
	Don't use backquote to make a mutable data-structure.
	(byte-compile-lvarinfo-num-refs, byte-compile-lvarinfo-num-sets):
	Rename to use `num-' instead of `num'.
	(byte-compile-make-lambda-lexenv): Adjust accordingly.
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2004-04-10  Miles Bader  <miles@gnu.org>
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	* emacs-lisp/byte-lexbind.el (byte-compile-compute-lforminfo):
	Look at variable's global specialp state too.
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2004-04-09  Miles Bader  <miles@gnu.org>
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	* emacs-lisp/byte-opt.el (byte-optimize-lapcode):
	Default initial-stack-depth to 0.
	(byte-optimize-lapcode): Discard the right number of values in
	the stack-set+discard-->discard optimization.
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2004-04-02  Miles Bader  <miles@gnu.org>
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	* emacs-lisp/lisp-mode.el (eval-last-sexp-1): Setup the lexical
	environment if lexical-binding is enabled.
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2003-10-14  Miles Bader  <miles@gnu.org>
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	* emacs-lisp/macroexp.el (macroexpand-all-1): Special-case
	`backquote-list*' to avoid stack overflows.
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2003-04-04  Miles Bader  <miles@gnu.org>
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	* help-fns.el (help-function-arglist): Handle interpreted closures.
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2002-11-20  Miles Bader  <miles@gnu.org>
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	* emacs-lisp/bytecomp.el (byte-compile-stack-adjustment):
	Correctly handle discardN* operators.
	* emacs-lisp/byte-opt.el (byte-optimize-lapcode): Fix stack-depth
	tracking errors.
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2002-08-26  Miles Bader  <miles@gnu.org>
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	* international/mule.el (make-char): Macroexpand call to
	charset-id constructed by `byte-compile' hook.
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	* emacs-lisp/macroexp.el (macroexpand-all-1): Expand defconst value.
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	* emacs-lisp/byte-opt.el (byte-opt-update-stack-params): New macro.
	(byte-optimize-lapcode): Keep track of stack-depth in final pass too.
	Add more optimizations for lexical binding.
	(byte-compile-inline-expand): Macroexpand result of inlining.
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	* emacs-lisp/bytecomp.el (byte-compile-lambda): Update call to
	byte-compile-closure-initial-lexenv-p.
	(byte-discardN-preserve-tos): Alias to byte-discardN.
	(byte-compile-push-binding-init): Don't push unused variables on
	init-lexenv.
	(byte-compile-push-binding-init): Don't use LFORMINFO if it's nil.
	(byte-compile-lambda): Don't look at lexical environment unless
	we're using lexical binding.
	(byte-compile-defmacro): Correctly generate macros.

	* emacs-lisp/byte-lexbind.el (byte-compile-unbind): Optimize the
	dynamic-bindings-only case.
	(byte-compile-bind): Don't special-case unused lexical variables.

	* emacs-lisp/disass.el (disassemble-1): Print arg for discardN ops.

2002-08-19  Miles Bader  <miles@gnu.org>

	* emacs-lisp/byte-opt.el (byte-decompile-bytecode-1):
	Handle `byte-discardN-preserve-tos' pseudo-op.
	(byte-compile-side-effect-and-error-free-ops): Add `byte-stack-ref'.
	(byte-compile-side-effect-free-ops): Add `byte-vec-ref'.
	(byte-optimize-lapcode): Add some cases for stack-set/ref ops.
	Add tracking of stack-depth.  Unfinished code to collapse
	lexical-unbinding sequences.

	* emacs-lisp/bytecomp.el (byte-compile-lapcode):
	Handle `byte-discardN-preserve-tos' pseudo-op.
	(byte-compile-top-level): If there are lexical args, output a TAG
	op to record the initial stack-depth for the optimizer.

2002-08-17  Miles Bader  <miles@gnu.org>

	* emacs-lisp/bytecomp.el (byte-discardN): Add byte-defop.
	(byte-compile-lapcode): Include byte-discardN.
	(byte-compile-lambda): Fixup closure detection.
	(byte-compile-top-level): Handle arguments for a lexical lambda.
	(byte-compile-lexical-variable-ref, byte-compile-variable-ref)
	(byte-compile-variable-set): Use byte-compile-stack-set/ref.
	(byte-compile-discard): Add new parameters NUM and PRESERVE-TOS.
	(byte-compile-stack-ref, byte-compile-stack-set): New functions.
	(byte-compile-push-binding-init): Get the variable list properly
	from LFORMINFO.

	* emacs-lisp/byte-lexbind.el (byte-compile-lforminfo-analyze):
	Ignore setq'd variables we're not interested in.
	(byte-compile-make-lambda-lexenv): Add assertion that closed-over
	variables be heap allocated.
	(byte-compile-closure-initial-lexenv-p): Rename from
	byte-compile-closure-lexenv-p.
	(byte-compile-non-stack-bindings-p): Get the variable list
	properly from LFORMINFO.
	(byte-compile-maybe-push-heap-environment): Handle the
	no-closed-over-variables case correctly.
	(byte-compile-bind): Use byte-compile-stack-set/ref.
	Don't bother modifying INIT-LEXENV as no one will see the changes.
	(byte-compile-unbind): Call `byte-compile-discard' to handle
	unbinding lexical bindings.

	* emacs-lisp/disass.el (disassemble-internal): Handle closures.
	(disassemble-1): Handle new bytecodes.
	* emacs-lisp/byte-opt.el (disassemble-offset): Handle new bytecodes.

2002-06-16  Miles Bader  <miles@gnu.org>

	* emacs-lisp/macroexp.el (macroexp-accumulate): New macro.
	(macroexpand-all-forms, macroexpand-all-clauses): Use it.
	* Makefile.in (compile): Undo previous change.

2002-06-14  Miles Bader  <miles@gnu.org>

	* Makefile.in (COMPILE_FIRST): Add `emacs-lisp/macroexp.el'.
	(compile): Add a special case that compiles `emacs-lisp/macroexp.el'
	with an increased max-lisp-eval-depth.

	* emacs-lisp/bytecomp.el: Provide `bytecomp-preload', at the
	beginning of the file.  Require `byte-lexbind' at compile time.
	Add a few doc string.
	(byte-compile-push-bytecodes)
	(byte-compile-push-bytecode-const2): New macros.
	(byte-compile-lapcode): Use them.  Do general code cleanup.
	(byte-compile-initial-macro-environment): Expand macros in
	byte-compile-eval before passing to byte-compile-top-level.
	(byte-compile): Use the `byte-compile-initial-macro-environment'.

	* emacs-lisp/byte-lexbind.el: Require `bytecomp-preload' instead of
	`bytecomp'.
	(byte-compile-bind): Use `byte-compile-dynamic-variable-bind' to bind
	dynamic variables.
	(byte-compile-maybe-push-heap-environment): Fix function name typo.

2002-06-13  Miles Bader  <miles@gnu.org>

	Byte compiler lexical binding support (not finished yet):
	* emacs-lisp/bytecomp.el: Require `macroexp'.
	(byte-compile-lexical-environment)
	(byte-compile-current-heap-environment)
	(byte-compile-current-num-closures): New variables.
	(0, 178, 179, 180, 181): New byte-opcodes.
	(byte-compile-lapcode): Handle stack-ref/set opcodes.  Signal an
	error if a delay-output placeholder is not filled in yet.
	(byte-compile-file-form, byte-compile): Expand all macros with
	`macroexpand-all'.
	(byte-compile-file-form-defsubst, byte-compile-form): Don't expand
	macros here.
	(byte-compile-make-lambda-lexenv): Autoload.
	(byte-compile-lambda): Initial code for handling lexically-bound
	arguments and closures; doesn't work yet.
	(byte-compile-closure-code-p, byte-compile-make-closure)
	(byte-compile-closure): New functions.
	(byte-compile-check-variable, byte-compile-dynamic-variable-op)
	(byte-compile-dynamic-variable-bind)
	(byte-compile-lexical-variable-ref, byte-compile-variable-set):
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	New functions.
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	(byte-compile-variable-ref): Remove second argument.  Now only
	handles real variable references (not setting or binding).
	(byte-compile-push-unknown-constant)
	(byte-compile-resolve-unknown-constant): New functions.
	(byte-compile-funarg, byte-compile-funarg-2): Functions removed.
	(byte-compile-function-form): Use either `byte-compile-constant'
	or `byte-compile-closure'.
	(byte-compile-setq): Use `byte-compile-variable-set' instead of
	`byte-compile-variable-ref'.
	(apply, mapcar, mapatoms, mapconcat, mapc, sort):
	`byte-defop-compiler-1's removed.
	(byte-compile-while): Make sure lexically-bound variables inside
	the loop don't get stored in an environment outside the loop.
	(byte-compile-compute-lforminfo): Autoload.
	(byte-compile-push-binding-init): New function.
	(byte-compile-let, byte-compile-let*): Handle lexical binding.
	(byte-compile-defun): Use `byte-compile-closure' to do the work.
	(byte-compile-defmacro): Use `byte-compile-make-closure'.
	(byte-compile-defvar): Expand the generated call to `push' since
	we're past macroexpansion already.
	(byte-compile-stack-adjustment): New function.
	(byte-compile-out): Make second arg optional.  Rewrite for clarity.
	(byte-compile-delay-out, byte-compile-delayed-out): New functions.

	* emacs-lisp/byte-opt.el (byte-optimize-form-code-walker):
	Don't expand macros here.

	* emacs-lisp/macroexp.el (macroexpand-all-1): Expand defmacro forms.

	* emacs-lisp/byte-lexbind.el (byte-compile-make-lvarinfo)
	(byte-compile-lforminfo-add-var)
	(byte-compile-lforminfo-note-closure)
	(byte-compile-compute-lforminfo)
	(byte-compile-lforminfo-from-lambda)
	(byte-compile-lforminfo-analyze)
	(byte-compile-heapenv-add-accessible-env)
	(byte-compile-heapenv-ensure-access)
	(byte-compile-rearrange-let-clauses, byte-compile-bind)
	(byte-compile-unbind): Fix a bunch of typos.

2002-06-12  Miles Bader  <miles@gnu.org>

	* emacs-lisp/byte-lexbind.el, emacs-lisp/macroexp.el: New files.

	* subr.el (functionp): Function removed (now a subr).
	* help-fns.el (describe-function-1): Handle interpreted closures.

;; arch-tag: bd1b5b8b-fdb2-425d-9ac2-20689fb0ee70