
* lisp/emacs-lisp/advice.el (ad-read-advised-function) (ad-read-advice-class, ad-read-advice-name, ad-enable-advice) (ad-disable-advice, ad-remove-advice, ad-set-argument) (ad-set-arguments): * lisp/emacs-lisp/byte-opt.el (byte-compile-inline-expand) (byte-compile-unfold-lambda, byte-optimize-form-code-walker) (byte-optimize-while, byte-optimize-apply): * lisp/emacs-lisp/bytecomp.el (byte-compile-lapcode) (byte-compile-log-file, byte-compile-format-warn) (byte-compile-nogroup-warn, byte-compile-arglist-warn) (byte-compile-cl-warn) (byte-compile-warn-about-unresolved-functions) (byte-compile-file, byte-compile-fix-header) (byte-compile--declare-var, byte-compile-file-form-defmumble) (byte-compile-form, byte-compile-normal-call) (byte-compile-variable-ref, byte-compile-variable-set) (byte-compile-subr-wrong-args, byte-compile-setq-default) (byte-compile-negation-optimizer) (byte-compile-condition-case--old) (byte-compile-condition-case--new, byte-compile-save-excursion) (byte-compile-defvar, byte-compile-autoload) (byte-compile-lambda-form) (byte-compile-make-variable-buffer-local, display-call-tree) (batch-byte-compile): * lisp/emacs-lisp/cconv.el (cconv-convert, cconv--analyze-use) (cconv-analyze-form): * lisp/emacs-lisp/chart.el (chart-space-usage): * lisp/emacs-lisp/check-declare.el (check-declare-scan) (check-declare-warn, check-declare-file) (check-declare-directory): * lisp/emacs-lisp/checkdoc.el (checkdoc-this-string-valid-engine) (checkdoc-message-text-engine): * lisp/emacs-lisp/cl-extra.el (cl-parse-integer): * lisp/emacs-lisp/cl-macs.el (cl--parse-loop-clause, cl-tagbody) (cl-symbol-macrolet): * lisp/emacs-lisp/cl.el (cl-unload-function, flet): * lisp/emacs-lisp/copyright.el (copyright) (copyright-update-directory): * lisp/emacs-lisp/edebug.el (edebug-read-list): * lisp/emacs-lisp/eieio-base.el (eieio-persistent-read): * lisp/emacs-lisp/eieio-core.el (eieio--slot-override) (eieio-oref, eieio-oset-default): * lisp/emacs-lisp/eieio-speedbar.el: (eieio-speedbar-child-make-tag-lines) (eieio-speedbar-child-description): * lisp/emacs-lisp/eieio.el (defclass, change-class): * lisp/emacs-lisp/elint.el (elint-file, elint-get-top-forms) (elint-init-form, elint-check-defalias-form) (elint-check-let-form): * lisp/emacs-lisp/ert.el (ert-get-test): * lisp/emacs-lisp/find-func.el (find-function-search-for-symbol) (find-function-library): * lisp/emacs-lisp/generator.el (iter-yield): * lisp/emacs-lisp/gv.el (gv-define-simple-setter): * lisp/emacs-lisp/lisp-mnt.el (lm-verify): * lisp/emacs-lisp/package-x.el (package-upload-file): * lisp/emacs-lisp/package.el (package-version-join) (package-disabled-p, package-activate-1, package-activate) (package--download-one-archive) (package--download-and-read-archives) (package-compute-transaction, package-install-from-archive) (package-install, package-install-selected-packages) (package-delete, package-autoremove) (package-install-button-action, package-delete-button-action) (package-menu-hide-package, package-menu--list-to-prompt) (package-menu--perform-transaction) (package-menu--find-and-notify-upgrades): * lisp/emacs-lisp/pcase.el (pcase-exhaustive, pcase--u1): * lisp/emacs-lisp/re-builder.el (reb-enter-subexp-mode): * lisp/emacs-lisp/ring.el (ring-next, ring-previous): * lisp/emacs-lisp/rx.el (rx-check, rx-anything): * lisp/emacs-lisp/smie.el (smie-config-save): * lisp/emacs-lisp/subr-x.el (internal--check-binding): * lisp/emacs-lisp/testcover.el (testcover-1value): Use curved quotes in diagnostic format strings.
726 lines
27 KiB
EmacsLisp
726 lines
27 KiB
EmacsLisp
;;; cl.el --- Compatibility aliases for the old CL library. -*- lexical-binding: t -*-
|
||
|
||
;; Copyright (C) 2012-2015 Free Software Foundation, Inc.
|
||
|
||
;; Author: Stefan Monnier <monnier@iro.umontreal.ca>
|
||
;; Keywords: extensions
|
||
|
||
;; This file is part of GNU Emacs.
|
||
|
||
;; GNU Emacs is free software: you can redistribute it and/or modify
|
||
;; it under the terms of the GNU General Public License as published by
|
||
;; the Free Software Foundation, either version 3 of the License, or
|
||
;; (at your option) any later version.
|
||
|
||
;; GNU Emacs is distributed in the hope that it will be useful,
|
||
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
;; GNU General Public License for more details.
|
||
|
||
;; You should have received a copy of the GNU General Public License
|
||
;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
|
||
|
||
;;; Commentary:
|
||
|
||
;; This is a compatibility file which provides the old names provided by CL
|
||
;; before we cleaned up its namespace usage.
|
||
|
||
;;; Code:
|
||
|
||
(require 'cl-lib)
|
||
(require 'macroexp)
|
||
(require 'gv)
|
||
|
||
;; (defun cl--rename ()
|
||
;; (let ((vdefs ())
|
||
;; (fdefs ())
|
||
;; (case-fold-search nil)
|
||
;; (files '("cl.el" "cl-macs.el" "cl-seq.el" "cl-extra.el")))
|
||
;; (dolist (file files)
|
||
;; (with-current-buffer (find-file-noselect file)
|
||
;; (goto-char (point-min))
|
||
;; (while (re-search-forward
|
||
;; "^(\\(def[^ \t\n]*\\) +'?\\(\\(\\sw\\|\\s_\\)+\\)" nil t)
|
||
;; (let ((name (match-string-no-properties 2))
|
||
;; (type (match-string-no-properties 1)))
|
||
;; (unless (string-match-p "\\`cl-" name)
|
||
;; (cond
|
||
;; ((member type '("defvar" "defconst"))
|
||
;; (unless (member name vdefs) (push name vdefs)))
|
||
;; ((member type '("defun" "defsubst" "defalias" "defmacro"))
|
||
;; (unless (member name fdefs) (push name fdefs)))
|
||
;; ((member type '("def-edebug-spec" "defsetf" "define-setf-method"
|
||
;; "define-compiler-macro"))
|
||
;; nil)
|
||
;; (t (error "Unknown type %S" type))))))))
|
||
;; (let ((re (concat "\\_<" (regexp-opt (append vdefs fdefs)) "\\_>"))
|
||
;; (conflicts ()))
|
||
;; (dolist (file files)
|
||
;; (with-current-buffer (find-file-noselect file)
|
||
;; (goto-char (point-min))
|
||
;; (while (re-search-forward re nil t)
|
||
;; (replace-match "cl-\\&"))
|
||
;; (save-buffer))))
|
||
;; (with-current-buffer (find-file-noselect "cl-rename.el")
|
||
;; (dolist (def vdefs)
|
||
;; (insert (format "(defvaralias '%s 'cl-%s)\n" def def)))
|
||
;; (dolist (def fdefs)
|
||
;; (insert (format "(defalias '%s 'cl-%s)\n" def def)))
|
||
;; (save-buffer))))
|
||
|
||
;; (defun cl--unrename ()
|
||
;; ;; Taken from "Naming Conventions" node of the doc.
|
||
;; (let* ((names '(defun* defsubst* defmacro* function* member*
|
||
;; assoc* rassoc* get* remove* delete*
|
||
;; mapcar* sort* floor* ceiling* truncate*
|
||
;; round* mod* rem* random*))
|
||
;; (files '("cl.el" "cl-lib.el" "cl-macs.el" "cl-seq.el" "cl-extra.el"))
|
||
;; (re (concat "\\_<cl-" (regexp-opt (mapcar #'symbol-name names))
|
||
;; "\\_>")))
|
||
;; (dolist (file files)
|
||
;; (with-current-buffer (find-file-noselect file)
|
||
;; (goto-char (point-min))
|
||
;; (while (re-search-forward re nil t)
|
||
;; (delete-region (1- (point)) (point)))
|
||
;; (save-buffer)))))
|
||
|
||
(defun cl-unload-function ()
|
||
"Stop unloading of the Common Lisp extensions."
|
||
(message "Cannot unload the feature ‘cl’")
|
||
;; Stop standard unloading!
|
||
t)
|
||
|
||
;;; Aliases to cl-lib's features.
|
||
|
||
(dolist (var '(
|
||
;; loop-result-var
|
||
;; loop-result
|
||
;; loop-initially
|
||
;; loop-finally
|
||
;; loop-bindings
|
||
;; loop-args
|
||
;; bind-inits
|
||
;; bind-block
|
||
;; lambda-list-keywords
|
||
float-negative-epsilon
|
||
float-epsilon
|
||
least-negative-normalized-float
|
||
least-positive-normalized-float
|
||
least-negative-float
|
||
least-positive-float
|
||
most-negative-float
|
||
most-positive-float
|
||
;; custom-print-functions
|
||
))
|
||
(defvaralias var (intern (format "cl-%s" var))))
|
||
|
||
(dolist (fun '(
|
||
(get* . cl-get)
|
||
(random* . cl-random)
|
||
(rem* . cl-rem)
|
||
(mod* . cl-mod)
|
||
(round* . cl-round)
|
||
(truncate* . cl-truncate)
|
||
(ceiling* . cl-ceiling)
|
||
(floor* . cl-floor)
|
||
(rassoc* . cl-rassoc)
|
||
(assoc* . cl-assoc)
|
||
(member* . cl-member)
|
||
(delete* . cl-delete)
|
||
(remove* . cl-remove)
|
||
(defsubst* . cl-defsubst)
|
||
(sort* . cl-sort)
|
||
(function* . cl-function)
|
||
(defmacro* . cl-defmacro)
|
||
(defun* . cl-defun)
|
||
(mapcar* . cl-mapcar)
|
||
|
||
remprop
|
||
getf
|
||
tailp
|
||
list-length
|
||
nreconc
|
||
revappend
|
||
concatenate
|
||
subseq
|
||
random-state-p
|
||
make-random-state
|
||
signum
|
||
isqrt
|
||
lcm
|
||
gcd
|
||
notevery
|
||
notany
|
||
every
|
||
some
|
||
mapcon
|
||
mapcan
|
||
mapl
|
||
maplist
|
||
map
|
||
equalp
|
||
coerce
|
||
tree-equal
|
||
nsublis
|
||
sublis
|
||
nsubst-if-not
|
||
nsubst-if
|
||
nsubst
|
||
subst-if-not
|
||
subst-if
|
||
subsetp
|
||
nset-exclusive-or
|
||
set-exclusive-or
|
||
nset-difference
|
||
set-difference
|
||
nintersection
|
||
intersection
|
||
nunion
|
||
union
|
||
rassoc-if-not
|
||
rassoc-if
|
||
assoc-if-not
|
||
assoc-if
|
||
member-if-not
|
||
member-if
|
||
merge
|
||
stable-sort
|
||
search
|
||
mismatch
|
||
count-if-not
|
||
count-if
|
||
count
|
||
position-if-not
|
||
position-if
|
||
position
|
||
find-if-not
|
||
find-if
|
||
find
|
||
nsubstitute-if-not
|
||
nsubstitute-if
|
||
nsubstitute
|
||
substitute-if-not
|
||
substitute-if
|
||
substitute
|
||
delete-duplicates
|
||
remove-duplicates
|
||
delete-if-not
|
||
delete-if
|
||
remove-if-not
|
||
remove-if
|
||
replace
|
||
fill
|
||
reduce
|
||
compiler-macroexpand
|
||
define-compiler-macro
|
||
assert
|
||
check-type
|
||
typep
|
||
deftype
|
||
defstruct
|
||
callf2
|
||
callf
|
||
letf*
|
||
letf
|
||
rotatef
|
||
shiftf
|
||
remf
|
||
psetf
|
||
(define-setf-method . define-setf-expander)
|
||
the
|
||
locally
|
||
multiple-value-setq
|
||
multiple-value-bind
|
||
symbol-macrolet
|
||
macrolet
|
||
progv
|
||
psetq
|
||
do-all-symbols
|
||
do-symbols
|
||
do*
|
||
do
|
||
loop
|
||
return-from
|
||
return
|
||
block
|
||
etypecase
|
||
typecase
|
||
ecase
|
||
case
|
||
load-time-value
|
||
eval-when
|
||
destructuring-bind
|
||
gentemp
|
||
gensym
|
||
pairlis
|
||
acons
|
||
subst
|
||
adjoin
|
||
copy-list
|
||
ldiff
|
||
list*
|
||
cddddr
|
||
cdddar
|
||
cddadr
|
||
cddaar
|
||
cdaddr
|
||
cdadar
|
||
cdaadr
|
||
cdaaar
|
||
cadddr
|
||
caddar
|
||
cadadr
|
||
cadaar
|
||
caaddr
|
||
caadar
|
||
caaadr
|
||
caaaar
|
||
cdddr
|
||
cddar
|
||
cdadr
|
||
cdaar
|
||
caddr
|
||
cadar
|
||
caadr
|
||
caaar
|
||
tenth
|
||
ninth
|
||
eighth
|
||
seventh
|
||
sixth
|
||
fifth
|
||
fourth
|
||
third
|
||
endp
|
||
rest
|
||
second
|
||
first
|
||
svref
|
||
copy-seq
|
||
evenp
|
||
oddp
|
||
minusp
|
||
plusp
|
||
floatp-safe
|
||
declaim
|
||
proclaim
|
||
nth-value
|
||
multiple-value-call
|
||
multiple-value-apply
|
||
multiple-value-list
|
||
values-list
|
||
values
|
||
pushnew
|
||
decf
|
||
incf
|
||
))
|
||
(let ((new (if (consp fun) (prog1 (cdr fun) (setq fun (car fun)))
|
||
(intern (format "cl-%s" fun)))))
|
||
(defalias fun new)))
|
||
|
||
(defun cl--wrap-in-nil-block (fun &rest args)
|
||
`(cl-block nil ,(apply fun args)))
|
||
(advice-add 'dolist :around #'cl--wrap-in-nil-block)
|
||
(advice-add 'dotimes :around #'cl--wrap-in-nil-block)
|
||
|
||
(defun cl--pass-args-to-cl-declare (&rest specs)
|
||
(macroexpand `(cl-declare ,@specs)))
|
||
(advice-add 'declare :after #'cl--pass-args-to-cl-declare)
|
||
|
||
;;; Features provided a bit differently in Elisp.
|
||
|
||
;; First, the old lexical-let is now better served by `lexical-binding', tho
|
||
;; it's not 100% compatible.
|
||
|
||
(defvar cl-closure-vars nil)
|
||
(defvar cl--function-convert-cache nil)
|
||
|
||
(defun cl--function-convert (f)
|
||
"Special macro-expander for special cases of (function F).
|
||
The two cases that are handled are:
|
||
- closure-conversion of lambda expressions for `lexical-let'.
|
||
- renaming of F when it's a function defined via `cl-labels' or `labels'."
|
||
(require 'cl-macs)
|
||
(declare-function cl--expr-contains-any "cl-macs" (x y))
|
||
(declare-function cl--labels-convert "cl-macs" (f))
|
||
(defvar cl--labels-convert-cache)
|
||
(cond
|
||
;; ¡¡Big Ugly Hack!! We can't use a compiler-macro because those are checked
|
||
;; *after* handling `function', but we want to stop macroexpansion from
|
||
;; being applied infinitely, so we use a cache to return the exact `form'
|
||
;; being expanded even though we don't receive it.
|
||
((eq f (car cl--function-convert-cache)) (cdr cl--function-convert-cache))
|
||
((eq (car-safe f) 'lambda)
|
||
(let ((body (mapcar (lambda (f)
|
||
(macroexpand-all f macroexpand-all-environment))
|
||
(cddr f))))
|
||
(if (and cl-closure-vars
|
||
(cl--expr-contains-any body cl-closure-vars))
|
||
(let* ((new (mapcar 'cl-gensym cl-closure-vars))
|
||
(sub (cl-pairlis cl-closure-vars new)) (decls nil))
|
||
(while (or (stringp (car body))
|
||
(eq (car-safe (car body)) 'interactive))
|
||
(push (list 'quote (pop body)) decls))
|
||
(put (car (last cl-closure-vars)) 'used t)
|
||
`(list 'lambda '(&rest --cl-rest--)
|
||
,@(cl-sublis sub (nreverse decls))
|
||
(list 'apply
|
||
(list 'quote
|
||
#'(lambda ,(append new (cadr f))
|
||
,@(cl-sublis sub body)))
|
||
,@(nconc (mapcar (lambda (x) `(list 'quote ,x))
|
||
cl-closure-vars)
|
||
'((quote --cl-rest--))))))
|
||
(let* ((newf `(lambda ,(cadr f) ,@body))
|
||
(res `(function ,newf)))
|
||
(setq cl--function-convert-cache (cons newf res))
|
||
res))))
|
||
(t
|
||
(cl--labels-convert f))))
|
||
|
||
(defmacro lexical-let (bindings &rest body)
|
||
"Like `let', but lexically scoped.
|
||
The main visible difference is that lambdas inside BODY will create
|
||
lexical closures as in Common Lisp.
|
||
\n(fn BINDINGS BODY)"
|
||
(declare (indent 1) (debug let))
|
||
(let* ((cl-closure-vars cl-closure-vars)
|
||
(vars (mapcar (function
|
||
(lambda (x)
|
||
(or (consp x) (setq x (list x)))
|
||
(push (make-symbol (format "--cl-%s--" (car x)))
|
||
cl-closure-vars)
|
||
(set (car cl-closure-vars) [bad-lexical-ref])
|
||
(list (car x) (cadr x) (car cl-closure-vars))))
|
||
bindings))
|
||
(ebody
|
||
(macroexpand-all
|
||
`(cl-symbol-macrolet
|
||
,(mapcar (lambda (x)
|
||
`(,(car x) (symbol-value ,(nth 2 x))))
|
||
vars)
|
||
,@body)
|
||
(cons (cons 'function #'cl--function-convert)
|
||
macroexpand-all-environment))))
|
||
(if (not (get (car (last cl-closure-vars)) 'used))
|
||
;; Turn (let ((foo (cl-gensym)))
|
||
;; (set foo <val>) ...(symbol-value foo)...)
|
||
;; into (let ((foo <val>)) ...(symbol-value 'foo)...).
|
||
;; This is good because it's more efficient but it only works with
|
||
;; dynamic scoping, since with lexical scoping we'd need
|
||
;; (let ((foo <val>)) ...foo...).
|
||
`(progn
|
||
,@(mapcar (lambda (x) `(defvar ,(nth 2 x))) vars)
|
||
(let ,(mapcar (lambda (x) (list (nth 2 x) (nth 1 x))) vars)
|
||
,(cl-sublis (mapcar (lambda (x)
|
||
(cons (nth 2 x)
|
||
`',(nth 2 x)))
|
||
vars)
|
||
ebody)))
|
||
`(let ,(mapcar (lambda (x)
|
||
(list (nth 2 x)
|
||
`(make-symbol ,(format "--%s--" (car x)))))
|
||
vars)
|
||
(setf ,@(apply #'append
|
||
(mapcar (lambda (x)
|
||
(list `(symbol-value ,(nth 2 x)) (nth 1 x)))
|
||
vars)))
|
||
,ebody))))
|
||
|
||
(defmacro lexical-let* (bindings &rest body)
|
||
"Like `let*', but lexically scoped.
|
||
The main visible difference is that lambdas inside BODY, and in
|
||
successive bindings within BINDINGS, will create lexical closures
|
||
as in Common Lisp. This is similar to the behavior of `let*' in
|
||
Common Lisp.
|
||
\n(fn BINDINGS BODY)"
|
||
(declare (indent 1) (debug let))
|
||
(if (null bindings) (cons 'progn body)
|
||
(setq bindings (reverse bindings))
|
||
(while bindings
|
||
(setq body (list `(lexical-let (,(pop bindings)) ,@body))))
|
||
(car body)))
|
||
|
||
;; This should really have some way to shadow 'byte-compile properties, etc.
|
||
(defmacro flet (bindings &rest body)
|
||
"Make temporary overriding function definitions.
|
||
This is an analogue of a dynamically scoped `let' that operates on the function
|
||
cell of FUNCs rather than their value cell.
|
||
If you want the Common-Lisp style of `flet', you should use `cl-flet'.
|
||
The FORMs are evaluated with the specified function definitions in place,
|
||
then the definitions are undone (the FUNCs go back to their previous
|
||
definitions, or lack thereof).
|
||
|
||
\(fn ((FUNC ARGLIST BODY...) ...) FORM...)"
|
||
(declare (indent 1) (debug cl-flet)
|
||
(obsolete "use either `cl-flet' or `cl-letf'." "24.3"))
|
||
`(letf ,(mapcar
|
||
(lambda (x)
|
||
(if (or (and (fboundp (car x))
|
||
(eq (car-safe (symbol-function (car x))) 'macro))
|
||
(cdr (assq (car x) macroexpand-all-environment)))
|
||
(error "Use ‘labels’, not ‘flet’, to rebind macro names"))
|
||
(let ((func `(cl-function
|
||
(lambda ,(cadr x)
|
||
(cl-block ,(car x) ,@(cddr x))))))
|
||
(when (cl--compiling-file)
|
||
;; Bug#411. It would be nice to fix this.
|
||
(and (get (car x) 'byte-compile)
|
||
(error "Byte-compiling a redefinition of ‘%s’ \
|
||
will not work - use ‘labels’ instead" (symbol-name (car x))))
|
||
;; FIXME This affects the rest of the file, when it
|
||
;; should be restricted to the flet body.
|
||
(and (boundp 'byte-compile-function-environment)
|
||
(push (cons (car x) (eval func))
|
||
byte-compile-function-environment)))
|
||
(list `(symbol-function ',(car x)) func)))
|
||
bindings)
|
||
,@body))
|
||
|
||
(defmacro labels (bindings &rest body)
|
||
"Make temporary function bindings.
|
||
Like `cl-labels' except that the lexical scoping is handled via `lexical-let'
|
||
rather than relying on `lexical-binding'."
|
||
(declare (indent 1) (debug cl-flet) (obsolete cl-labels "24.3"))
|
||
(let ((vars nil) (sets nil) (newenv macroexpand-all-environment))
|
||
(dolist (binding bindings)
|
||
;; It's important that (not (eq (symbol-name var1) (symbol-name var2)))
|
||
;; because these var's *names* get added to the macro-environment.
|
||
(let ((var (make-symbol (format "--cl-%s--" (car binding)))))
|
||
(push var vars)
|
||
(push `(cl-function (lambda . ,(cdr binding))) sets)
|
||
(push var sets)
|
||
(push (cons (car binding)
|
||
`(lambda (&rest cl-labels-args)
|
||
(cl-list* 'funcall ',var
|
||
cl-labels-args)))
|
||
newenv)))
|
||
(macroexpand-all `(lexical-let ,vars (setq ,@sets) ,@body) newenv)))
|
||
|
||
;; Generalized variables are provided by gv.el, but some details are
|
||
;; not 100% compatible: not worth the trouble to add them to cl-lib.el, but we
|
||
;; still need to support old users of cl.el.
|
||
|
||
(defun cl--gv-adapt (cl-gv do)
|
||
;; This function is used by all .elc files that use define-setf-expander and
|
||
;; were compiled with Emacs>=24.3.
|
||
(let ((vars (nth 0 cl-gv))
|
||
(vals (nth 1 cl-gv))
|
||
(binds ())
|
||
(substs ()))
|
||
;; Use cl-sublis as was done in cl-setf-do-modify.
|
||
(while vars
|
||
(if (macroexp-copyable-p (car vals))
|
||
(push (cons (pop vars) (pop vals)) substs)
|
||
(push (list (pop vars) (pop vals)) binds)))
|
||
(macroexp-let*
|
||
binds
|
||
(funcall do (cl-sublis substs (nth 4 cl-gv))
|
||
;; We'd like to do something like
|
||
;; (lambda ,(nth 2 cl-gv) ,(nth 3 cl-gv)).
|
||
(lambda (exp)
|
||
(macroexp-let2 macroexp-copyable-p v exp
|
||
(cl-sublis (cons (cons (car (nth 2 cl-gv)) v)
|
||
substs)
|
||
(nth 3 cl-gv))))))))
|
||
|
||
(defmacro define-setf-expander (name arglist &rest body)
|
||
"Define a `setf' method.
|
||
This method shows how to handle `setf's to places of the form
|
||
\(NAME ARGS...). The argument forms ARGS are bound according to
|
||
ARGLIST, as if NAME were going to be expanded as a macro, then
|
||
the BODY forms are executed and must return a list of five elements:
|
||
a temporary-variables list, a value-forms list, a store-variables list
|
||
\(of length one), a store-form, and an access- form.
|
||
|
||
See `gv-define-expander', and `gv-define-setter' for better and
|
||
simpler ways to define setf-methods."
|
||
(declare (debug
|
||
(&define name cl-lambda-list cl-declarations-or-string def-body)))
|
||
`(progn
|
||
,@(if (stringp (car body))
|
||
(list `(put ',name 'setf-documentation ,(pop body))))
|
||
(gv-define-expander ,name
|
||
(cl-function
|
||
(lambda (do ,@arglist)
|
||
(cl--gv-adapt (progn ,@body) do))))))
|
||
|
||
(defmacro defsetf (name arg1 &rest args)
|
||
"Define a `setf' method.
|
||
This macro is an easy-to-use substitute for `define-setf-expander'
|
||
that works well for simple place forms.
|
||
|
||
In the simple `defsetf' form, `setf's of the form (setf (NAME
|
||
ARGS...) VAL) are transformed to function or macro calls of the
|
||
form (FUNC ARGS... VAL). For example:
|
||
|
||
(defsetf aref aset)
|
||
|
||
You can replace this form with `gv-define-simple-setter'.
|
||
|
||
Alternate form: (defsetf NAME ARGLIST (STORE) BODY...).
|
||
|
||
Here, the above `setf' call is expanded by binding the argument
|
||
forms ARGS according to ARGLIST, binding the value form VAL to
|
||
STORE, then executing BODY, which must return a Lisp form that
|
||
does the necessary `setf' operation. Actually, ARGLIST and STORE
|
||
may be bound to temporary variables which are introduced
|
||
automatically to preserve proper execution order of the arguments.
|
||
For example:
|
||
|
||
(defsetf nth (n x) (v) `(setcar (nthcdr ,n ,x) ,v))
|
||
|
||
You can replace this form with `gv-define-setter'.
|
||
|
||
\(fn NAME [FUNC | ARGLIST (STORE) BODY...])"
|
||
(declare (debug
|
||
(&define name
|
||
[&or [symbolp &optional stringp]
|
||
[cl-lambda-list (symbolp)]]
|
||
cl-declarations-or-string def-body)))
|
||
(if (and (listp arg1) (consp args))
|
||
;; Like `gv-define-setter' but with `cl-function'.
|
||
`(gv-define-expander ,name
|
||
(lambda (do &rest args)
|
||
(gv--defsetter ',name
|
||
(cl-function
|
||
(lambda (,@(car args) ,@arg1) ,@(cdr args)))
|
||
do args)))
|
||
`(gv-define-simple-setter ,name ,arg1 ,(car args))))
|
||
|
||
;; FIXME: CL used to provide a setf method for `apply', but I haven't been able
|
||
;; to find a case where it worked. The code below tries to handle it as well.
|
||
;; (defun cl--setf-apply (form last-witness last)
|
||
;; (cond
|
||
;; ((not (consp form)) form)
|
||
;; ((eq (ignore-errors (car (last form))) last-witness)
|
||
;; `(apply #',(car form) ,@(butlast (cdr form)) ,last))
|
||
;; ((and (memq (car form) '(let let*))
|
||
;; (rassoc (list last-witness) (cadr form)))
|
||
;; (let ((rebind (rassoc (list last-witness) (cadr form))))
|
||
;; `(,(car form) ,(remq rebind (cadr form))
|
||
;; ,@(mapcar (lambda (form) (cl--setf-apply form (car rebind) last))
|
||
;; (cddr form)))))
|
||
;; (t (mapcar (lambda (form) (cl--setf-apply form last-witness last)) form))))
|
||
;; (gv-define-setter apply (val fun &rest args)
|
||
;; (pcase fun (`#',(and (pred symbolp) f) (setq fun f))
|
||
;; (_ (error "First arg to apply in setf is not #'SYM: %S" fun)))
|
||
;; (let* ((butlast (butlast args))
|
||
;; (last (car (last args)))
|
||
;; (last-witness (make-symbol "--cl-tailarg--"))
|
||
;; (setter (macroexpand `(setf (,fun ,@butlast ,last-witness) ,val)
|
||
;; macroexpand-all-environment)))
|
||
;; (cl--setf-apply setter last-witness last)))
|
||
|
||
|
||
;; FIXME: CL used to provide get-setf-method, which was used by some
|
||
;; setf-expanders, but now that we use gv.el, it is a lot more difficult
|
||
;; and in general impossible to provide get-setf-method. Hopefully, it
|
||
;; won't be needed. If needed, we'll have to do something nasty along the
|
||
;; lines of
|
||
;; (defun get-setf-method (place &optional env)
|
||
;; (let* ((witness (list 'cl-gsm))
|
||
;; (expansion (gv-letplace (getter setter) place
|
||
;; `(,witness ,getter ,(funcall setter witness)))))
|
||
;; ...find "let prefix" of expansion, extract getter and setter from
|
||
;; ...the rest, and build the 5-tuple))
|
||
(make-obsolete 'get-setf-method 'gv-letplace "24.3")
|
||
|
||
(declare-function cl--arglist-args "cl-macs" (args))
|
||
|
||
(defmacro define-modify-macro (name arglist func &optional doc)
|
||
"Define a `setf'-like modify macro.
|
||
If NAME is called, it combines its PLACE argument with the other
|
||
arguments from ARGLIST using FUNC. For example:
|
||
|
||
(define-modify-macro incf (&optional (n 1)) +)
|
||
|
||
You can replace this macro with `gv-letplace'."
|
||
(declare (debug
|
||
(&define name cl-lambda-list ;; should exclude &key
|
||
symbolp &optional stringp)))
|
||
(if (memq '&key arglist)
|
||
(error "&key not allowed in define-modify-macro"))
|
||
(require 'cl-macs) ;For cl--arglist-args.
|
||
(let ((place (make-symbol "--cl-place--")))
|
||
`(cl-defmacro ,name (,place ,@arglist)
|
||
,doc
|
||
(,(if (memq '&rest arglist) #'cl-list* #'list)
|
||
#'cl-callf ',func ,place
|
||
,@(cl--arglist-args arglist)))))
|
||
|
||
;;; Additional compatibility code.
|
||
;; For names that were clean but really aren't needed any more.
|
||
|
||
(define-obsolete-function-alias 'cl-macroexpand 'macroexpand "24.3")
|
||
(define-obsolete-variable-alias 'cl-macro-environment
|
||
'macroexpand-all-environment "24.3")
|
||
(define-obsolete-function-alias 'cl-macroexpand-all 'macroexpand-all "24.3")
|
||
|
||
;;; Hash tables.
|
||
;; This is just kept for compatibility with code byte-compiled by Emacs-20.
|
||
|
||
;; No idea if this might still be needed.
|
||
(defun cl-not-hash-table (x &optional y &rest _z)
|
||
(declare (obsolete nil "24.3"))
|
||
(signal 'wrong-type-argument (list 'cl-hash-table-p (or y x))))
|
||
|
||
(defvar cl-builtin-gethash (symbol-function 'gethash))
|
||
(make-obsolete-variable 'cl-builtin-gethash nil "24.3")
|
||
(defvar cl-builtin-remhash (symbol-function 'remhash))
|
||
(make-obsolete-variable 'cl-builtin-remhash nil "24.3")
|
||
(defvar cl-builtin-clrhash (symbol-function 'clrhash))
|
||
(make-obsolete-variable 'cl-builtin-clrhash nil "24.3")
|
||
(defvar cl-builtin-maphash (symbol-function 'maphash))
|
||
|
||
(make-obsolete-variable 'cl-builtin-maphash nil "24.3")
|
||
(define-obsolete-function-alias 'cl-map-keymap 'map-keymap "24.3")
|
||
(define-obsolete-function-alias 'cl-copy-tree 'copy-tree "24.3")
|
||
(define-obsolete-function-alias 'cl-gethash 'gethash "24.3")
|
||
(define-obsolete-function-alias 'cl-puthash 'puthash "24.3")
|
||
(define-obsolete-function-alias 'cl-remhash 'remhash "24.3")
|
||
(define-obsolete-function-alias 'cl-clrhash 'clrhash "24.3")
|
||
(define-obsolete-function-alias 'cl-maphash 'maphash "24.3")
|
||
(define-obsolete-function-alias 'cl-make-hash-table 'make-hash-table "24.3")
|
||
(define-obsolete-function-alias 'cl-hash-table-p 'hash-table-p "24.3")
|
||
(define-obsolete-function-alias 'cl-hash-table-count 'hash-table-count "24.3")
|
||
|
||
(define-obsolete-function-alias 'cl-map-keymap-recursively
|
||
'cl--map-keymap-recursively "24.3")
|
||
(define-obsolete-function-alias 'cl-map-intervals 'cl--map-intervals "24.3")
|
||
(define-obsolete-function-alias 'cl-map-extents 'cl--map-overlays "24.3")
|
||
(define-obsolete-function-alias 'cl-set-getf 'cl--set-getf "24.3")
|
||
|
||
(defun cl-maclisp-member (item list)
|
||
(declare (obsolete member "24.3"))
|
||
(while (and list (not (equal item (car list)))) (setq list (cdr list)))
|
||
list)
|
||
|
||
;; Used in the expansion of the old `defstruct'.
|
||
(defun cl-struct-setf-expander (x name accessor pred-form pos)
|
||
(declare (obsolete nil "24.3"))
|
||
(let* ((temp (make-symbol "--cl-x--")) (store (make-symbol "--cl-store--")))
|
||
(list (list temp) (list x) (list store)
|
||
`(progn
|
||
,@(and pred-form
|
||
(list `(or ,(cl-subst temp 'cl-x pred-form)
|
||
(error ,(format
|
||
"%s storing a non-%s"
|
||
accessor name)))))
|
||
,(if (eq (car (get name 'cl-struct-type)) 'vector)
|
||
`(aset ,temp ,pos ,store)
|
||
`(setcar
|
||
,(if (<= pos 5)
|
||
(let ((xx temp))
|
||
(while (>= (setq pos (1- pos)) 0)
|
||
(setq xx `(cdr ,xx)))
|
||
xx)
|
||
`(nthcdr ,pos ,temp))
|
||
,store)))
|
||
(list accessor temp))))
|
||
|
||
(provide 'cl)
|
||
|
||
(run-hooks 'cl-load-hook)
|
||
|
||
;;; cl.el ends here
|