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slime.el
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slime.el
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;;; slime.el --- Superior Lisp Interaction Mode for Emacs
;;
;;;; License
;; Copyright (C) 2003 Eric Marsden, Luke Gorrie, Helmut Eller
;; Copyright (C) 2004,2005,2006 Luke Gorrie, Helmut Eller
;;
;; This program 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 2 of
;; the License, or (at your option) any later version.
;;
;; This program 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 this program; if not, write to the Free
;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
;; MA 02111-1307, USA.
;;;; Commentary
;;
;; This file contains extensions for programming in Common Lisp. The
;; main features are:
;;
;; A socket-based communication/RPC interface between Emacs and
;; Lisp.
;;
;; The `slime-mode' minor-mode complementing `lisp-mode'. This new
;; mode includes many commands for interacting with the Common Lisp
;; process.
;;
;; Common Lisp debugger written in Emacs Lisp. The debugger pops up
;; an Emacs buffer similar to the Emacs/Elisp debugger.
;;
;; Trapping compiler messages and creating annotations in the source
;; file on the appropriate forms.
;;
;; SLIME is compatible with GNU Emacs 21, 22, 23 and XEmacs 21. In
;; order to run SLIME requires a supporting Lisp server called
;; Swank. Swank is distributed with slime.el and will automatically be
;; started in a normal installation.
;;;; Dependencies and setup
(eval-and-compile
(when (<= emacs-major-version 20)
(error "Slime requires an Emacs version of 21, or above")))
(eval-and-compile
(require 'cl)
(unless (fboundp 'define-minor-mode)
(require 'easy-mmode)
(defalias 'define-minor-mode 'easy-mmode-define-minor-mode))
(when (locate-library "hyperspec")
(require 'hyperspec)))
(require 'thingatpt)
(require 'comint)
(require 'timer)
(require 'pp)
(require 'hideshow)
(require 'font-lock)
(when (featurep 'xemacs)
(require 'overlay))
(require 'easymenu)
(eval-when (compile)
(require 'arc-mode)
(require 'apropos)
(require 'outline)
(require 'etags))
(eval-and-compile
(defvar slime-path
(let ((path (or (locate-library "slime") load-file-name)))
(and path (file-name-directory path)))
"Directory containing the Slime package.
This is used to load the supporting Common Lisp library, Swank.
The default value is automatically computed from the location of the
Emacs Lisp package."))
(defvar slime-lisp-modes '(lisp-mode))
(defvar slime-setup-contribs nil)
(defun slime-setup (&optional contribs)
"Setup Emacs so that lisp-mode buffers always use SLIME.
CONTRIBS is a list of contrib packages to load."
(when (member 'lisp-mode slime-lisp-modes)
(add-hook 'lisp-mode-hook 'slime-lisp-mode-hook))
(setq slime-setup-contribs contribs)
(slime-setup-contribs))
(defun slime-setup-contribs ()
"Load and initialize contribs."
(when slime-setup-contribs
(add-to-list 'load-path (expand-file-name "contrib" slime-path))
(dolist (c slime-setup-contribs)
(require c)
(let ((init (intern (format "%s-init" c))))
(when (fboundp init)
(funcall init))))))
(defun slime-lisp-mode-hook ()
(slime-mode 1)
(set (make-local-variable 'lisp-indent-function)
'common-lisp-indent-function))
(eval-and-compile
(defun slime-changelog-date ()
"Return the datestring of the latest entry in the ChangeLog file.
Return nil if the ChangeLog file cannot be found."
(let ((changelog (concat slime-path "ChangeLog")))
(if (file-exists-p changelog)
(with-temp-buffer
(insert-file-contents-literally changelog nil 0 100)
(goto-char (point-min))
(symbol-name (read (current-buffer))))
nil))))
(defvar slime-protocol-version nil)
(setq slime-protocol-version
(eval-when-compile (slime-changelog-date)))
;;;; Customize groups
;;
;;;;; slime
(defgroup slime nil
"Interaction with the Superior Lisp Environment."
:prefix "slime-"
:group 'applications)
;;;;; slime-ui
(defgroup slime-ui nil
"Interaction with the Superior Lisp Environment."
:prefix "slime-"
:group 'slime)
(defcustom slime-truncate-lines t
"Set `truncate-lines' in popup buffers.
This applies to buffers that present lines as rows of data, such as
debugger backtraces and apropos listings."
:type 'boolean
:group 'slime-ui)
(defcustom slime-extended-modeline t
"If non-nil, display various information in the mode line of a
Lisp buffer. The information includes the current connection of
that buffer, the buffer package, and some state indication."
:type 'boolean
:group 'slime-ui)
(defcustom slime-kill-without-query-p nil
"If non-nil, kill SLIME processes without query when quitting Emacs.
This applies to the *inferior-lisp* buffer and the network connections."
:type 'boolean
:group 'slime-ui)
;;;;; slime-lisp
(defgroup slime-lisp nil
"Lisp server configuration."
:prefix "slime-"
:group 'slime)
(defcustom slime-backend "swank-loader.lisp"
"The name of the Lisp file that loads the Swank server.
This name is interpreted relative to the directory containing
slime.el, but could also be set to an absolute filename."
:type 'string
:group 'slime-lisp)
(defcustom slime-connected-hook nil
"List of functions to call when SLIME connects to Lisp."
:type 'hook
:group 'slime-lisp)
(defcustom slime-enable-evaluate-in-emacs nil
"*If non-nil, the inferior Lisp can evaluate arbitrary forms in Emacs.
The default is nil, as this feature can be a security risk."
:type '(boolean)
:group 'slime-lisp)
(defcustom slime-lisp-host "127.0.0.1"
"The default hostname (or IP address) to connect to."
:type 'string
:group 'slime-lisp)
(defcustom slime-port 4005
"Port to use as the default for `slime-connect'."
:type 'integer
:group 'slime-lisp)
(defvar slime-net-valid-coding-systems
'((iso-latin-1-unix nil "iso-latin-1-unix")
(iso-8859-1-unix nil "iso-latin-1-unix")
(binary nil "iso-latin-1-unix")
(utf-8-unix t "utf-8-unix")
(emacs-mule-unix t "emacs-mule-unix")
(euc-jp-unix t "euc-jp-unix"))
"A list of valid coding systems.
Each element is of the form: (NAME MULTIBYTEP CL-NAME)")
(defun slime-find-coding-system (name)
"Return the coding system for the symbol NAME.
The result is either an element in `slime-net-valid-coding-systems'
of nil."
(let ((probe (assq name slime-net-valid-coding-systems)))
(when (and probe (if (fboundp 'check-coding-system)
(ignore-errors (check-coding-system (car probe)))
(eq (car probe) 'binary)))
probe)))
(defcustom slime-net-coding-system
(car (find-if 'slime-find-coding-system
slime-net-valid-coding-systems :key 'car))
"Coding system used for network connections.
See also `slime-net-valid-coding-systems'."
:type (cons 'choice
(mapcar (lambda (x)
(list 'const (car x)))
slime-net-valid-coding-systems))
:group 'slime-lisp)
;;;;; slime-mode
(defgroup slime-mode nil
"Settings for slime-mode Lisp source buffers."
:prefix "slime-"
:group 'slime)
(defcustom slime-find-definitions-function 'slime-find-definitions-rpc
"Function to find definitions for a name.
The function is called with the definition name, a string, as its
argument."
:type 'function
:group 'slime-mode
:options '(slime-find-definitions-rpc
slime-etags-definitions
(lambda (name)
(append (slime-find-definitions-rpc name)
(slime-etags-definitions name)))
(lambda (name)
(or (slime-find-definitions-rpc name)
(and tags-table-list
(slime-etags-definitions name))))))
(defcustom slime-complete-symbol-function 'slime-simple-complete-symbol
"*Function to perform symbol completion."
:group 'slime-mode
:type '(choice (const :tag "Simple" slime-simple-complete-symbol)
(const :tag "Compound" slime-complete-symbol*)
(const :tag "Fuzzy" slime-fuzzy-complete-symbol)))
;;;;; slime-mode-faces
(defgroup slime-mode-faces nil
"Faces in slime-mode source code buffers."
:prefix "slime-"
:group 'slime-mode)
(defun slime-underline-color (color)
"Return a legal value for the :underline face attribute based on COLOR."
;; In XEmacs the :underline attribute can only be a boolean.
;; In GNU it can be the name of a colour.
(if (featurep 'xemacs)
(if color t nil)
color))
(defface slime-error-face
`((((class color) (background light))
(:underline ,(slime-underline-color "red")))
(((class color) (background dark))
(:underline ,(slime-underline-color "red")))
(t (:underline t)))
"Face for errors from the compiler."
:group 'slime-mode-faces)
(defface slime-warning-face
`((((class color) (background light))
(:underline ,(slime-underline-color "orange")))
(((class color) (background dark))
(:underline ,(slime-underline-color "coral")))
(t (:underline t)))
"Face for warnings from the compiler."
:group 'slime-mode-faces)
(defface slime-style-warning-face
`((((class color) (background light))
(:underline ,(slime-underline-color "brown")))
(((class color) (background dark))
(:underline ,(slime-underline-color "gold")))
(t (:underline t)))
"Face for style-warnings from the compiler."
:group 'slime-mode-faces)
(defface slime-note-face
`((((class color) (background light))
(:underline ,(slime-underline-color "brown4")))
(((class color) (background dark))
(:underline ,(slime-underline-color "light goldenrod")))
(t (:underline t)))
"Face for notes from the compiler."
:group 'slime-mode-faces)
(defun slime-face-inheritance-possible-p ()
"Return true if the :inherit face attribute is supported."
(assq :inherit custom-face-attributes))
(defface slime-highlight-face
(if (slime-face-inheritance-possible-p)
'((t (:inherit highlight :underline nil)))
'((((class color) (background light))
(:background "darkseagreen2"))
(((class color) (background dark))
(:background "darkolivegreen"))
(t (:inverse-video t))))
"Face for compiler notes while selected."
:group 'slime-mode-faces)
;;;;; sldb
(defgroup slime-debugger nil
"Backtrace options and fontification."
:prefix "sldb-"
:group 'slime)
(defmacro define-sldb-faces (&rest faces)
"Define the set of SLDB faces.
Each face specifiation is (NAME DESCRIPTION &optional PROPERTIES).
NAME is a symbol; the face will be called sldb-NAME-face.
DESCRIPTION is a one-liner for the customization buffer.
PROPERTIES specifies any default face properties."
`(progn ,@(loop for face in faces
collect `(define-sldb-face ,@face))))
(defmacro define-sldb-face (name description &optional default)
(let ((facename (intern (format "sldb-%s-face" (symbol-name name)))))
`(defface ,facename
(list (list t ,default))
,(format "Face for %s." description)
:group 'slime-debugger)))
(define-sldb-faces
(topline "the top line describing the error")
(condition "the condition class")
(section "the labels of major sections in the debugger buffer")
(frame-label "backtrace frame numbers")
(restart-type "restart names."
(if (slime-face-inheritance-possible-p)
'(:inherit font-lock-keyword-face)))
(restart "restart descriptions")
(restart-number "restart numbers (correspond to keystrokes to invoke)"
'(:bold t))
(frame-line "function names and arguments in the backtrace")
(restartable-frame-line
"frames which are surely restartable"
'(:foreground "lime green"))
(non-restartable-frame-line
"frames which are surely not restartable")
(detailed-frame-line
"function names and arguments in a detailed (expanded) frame")
(local-name "local variable names")
(local-value "local variable values")
(catch-tag "catch tags"))
;;;; Minor modes
;;;;; slime-mode
(define-minor-mode slime-mode
"\\<slime-mode-map>\
SLIME: The Superior Lisp Interaction Mode for Emacs (minor-mode).
Commands to compile the current buffer's source file and visually
highlight any resulting compiler notes and warnings:
\\[slime-compile-and-load-file] - Compile and load the current buffer's file.
\\[slime-compile-file] - Compile (but not load) the current buffer's file.
\\[slime-compile-defun] - Compile the top-level form at point.
Commands for visiting compiler notes:
\\[slime-next-note] - Goto the next form with a compiler note.
\\[slime-previous-note] - Goto the previous form with a compiler note.
\\[slime-remove-notes] - Remove compiler-note annotations in buffer.
Finding definitions:
\\[slime-edit-definition] - Edit the definition of the function called at point.
\\[slime-pop-find-definition-stack] - Pop the definition stack to go back from a definition.
Documentation commands:
\\[slime-describe-symbol] - Describe symbol.
\\[slime-apropos] - Apropos search.
\\[slime-disassemble-symbol] - Disassemble a function.
Evaluation commands:
\\[slime-eval-defun] - Evaluate top-level from containing point.
\\[slime-eval-last-expression] - Evaluate sexp before point.
\\[slime-pprint-eval-last-expression] - Evaluate sexp before point, pretty-print result.
Full set of commands:
\\{slime-mode-map}"
nil
nil
;; Fake binding to coax `define-minor-mode' to create the keymap
'((" " 'undefined))
(slime-setup-command-hooks))
(make-variable-buffer-local
(defvar slime-modeline-string nil
"The string that should be displayed in the modeline if
`slime-extended-modeline' is true, and which indicates the
current connection, package and state of a Lisp buffer.
The string is periodically updated by an idle timer."))
;;; These are used to keep track of old values, so we can determine
;;; whether the mode line has changed, and should be updated.
(make-variable-buffer-local
(defvar slime-modeline-package nil))
(make-variable-buffer-local
(defvar slime-modeline-connection-name nil))
(make-variable-buffer-local
(defvar slime-modeline-connection-state nil))
(defun slime-compute-modeline-package ()
(when (memq major-mode slime-lisp-modes)
;; WHEN-LET is defined later.
(let ((package (slime-current-package)))
(when package
(slime-pretty-package-name package)))))
(defun slime-pretty-package-name (name)
"Return a pretty version of a package name NAME."
(cond ((string-match "^#?:\\(.*\\)$" name)
(match-string 1 name))
((string-match "^\"\\(.*\\)\"$" name)
(match-string 1 name))
(t name)))
(defun slime-compute-modeline-connection ()
(let ((conn (slime-current-connection)))
(if (or (null conn) (slime-stale-connection-p conn))
nil
(slime-connection-name conn))))
(defun slime-compute-modeline-connection-state ()
(let* ((conn (slime-current-connection))
(new-state (slime-compute-connection-state conn)))
(if (eq new-state :connected)
(let ((rex-cs (length (slime-rex-continuations)))
(sldb-cs (length (sldb-debugged-continuations conn)))
;; There can be SLDB buffers which have no continuations
;; attached to it, e.g. the one resulting from
;; `slime-interrupt'.
(sldbs (length (sldb-buffers conn))))
(cond ((and (= sldbs 0) (zerop rex-cs)) nil)
((= sldbs 0) (format "%s" rex-cs))
(t (format "%s/%s"
(if (= rex-cs 0) 0 (- rex-cs sldb-cs))
sldbs))))
(slime-connection-state-as-string new-state))))
(defun slime-compute-modeline-string (conn state pkg)
(concat (when (or conn pkg) "[")
(when pkg (format "%s" pkg))
(when (and (or conn state) pkg) ", ")
(when conn (format "%s" conn))
(when state (format "{%s}" state))
(when (or conn pkg) "]")))
(defun slime-update-modeline-string ()
(let ((old-pkg slime-modeline-package)
(old-conn slime-modeline-connection-name)
(old-state slime-modeline-connection-state)
(new-pkg (slime-compute-modeline-package))
(new-conn (slime-compute-modeline-connection))
(new-state (slime-compute-modeline-connection-state)))
(when (or (not (equal old-pkg new-pkg))
(not (equal old-conn new-conn))
(not (equal old-state new-state)))
(setq slime-modeline-package new-pkg)
(setq slime-modeline-connection-name new-conn)
(setq slime-modeline-connection-state new-state)
(setq slime-modeline-string
(slime-compute-modeline-string new-conn new-state new-pkg)))))
(defun slime-shall-we-update-modeline-p ()
(and slime-extended-modeline
(or slime-mode slime-popup-buffer-mode)))
(defun slime-update-all-modelines ()
(dolist (window (window-list))
(with-current-buffer (window-buffer window)
(when (slime-shall-we-update-modeline-p)
(slime-update-modeline-string)
(force-mode-line-update)))))
(defvar slime-modeline-update-timer nil)
(defun slime-restart-or-init-modeline-update-timer ()
(when slime-modeline-update-timer
(cancel-timer slime-modeline-update-timer))
(setq slime-modeline-update-timer
(run-with-idle-timer 0.1 nil 'slime-update-all-modelines)))
(slime-restart-or-init-modeline-update-timer)
(defun slime-recompute-modelines (delay)
(cond (delay
;; Minimize flashing of modeline due to short lived
;; requests such as those of autodoc.
(slime-restart-or-init-modeline-update-timer))
(t
;; Must do this ourselves since emacs may have
;; been idling long enough that
;; SLIME-MODELINE-UPDATE-TIMER is not going to
;; trigger by itself.
(slime-update-all-modelines))))
;; Setup the mode-line to say when we're in slime-mode, which
;; connection is active, and which CL package we think the current
;; buffer belongs to.
(add-to-list 'minor-mode-alist
'(slime-mode
(" Slime" slime-modeline-string)))
;;;;; Key bindings
(defvar slime-parent-map (make-sparse-keymap)
"Parent keymap for shared between all Slime related modes.")
(defvar slime-parent-bindings
'(("\M-." slime-edit-definition)
("\M-," slime-pop-find-definition-stack)
("\C-x4." slime-edit-definition-other-window)
("\C-x5." slime-edit-definition-other-frame)
("\C-x\C-e" slime-eval-last-expression)
("\C-\M-x" slime-eval-defun)
;; Include PREFIX keys...
("\C-c" slime-prefix-map)))
(defvar slime-prefix-map (make-sparse-keymap)
"Keymap for commands prefixed with `slime-prefix-key'.")
(defvar slime-prefix-bindings
'(("\C-r" slime-eval-region)
(":" slime-interactive-eval)
("\C-e" slime-interactive-eval)
("E" slime-edit-value)
("\C-l" slime-load-file)
("\C-b" slime-interrupt)
("\M-d" slime-disassemble-symbol)
("\C-t" slime-toggle-trace-fdefinition)
("I" slime-inspect)
("\C-xt" slime-list-threads)
("\C-xc" slime-list-connections)
("<" slime-list-callers)
(">" slime-list-callees)
;; Include DOC keys...
("\C-d" slime-doc-map)
;; Include XREF WHO-FOO keys...
("\C-w" slime-who-map)
))
;;; These keys are useful for buffers where the user can insert and
;;; edit s-exprs, e.g. for source buffers and the REPL.
(defvar slime-editing-keys
'(;; Arglist display & completion
("\M-\t" slime-complete-symbol)
(" " slime-space)
;; Evaluating
;;("\C-x\M-e" slime-eval-last-expression-display-output :inferior t)
("\C-c\C-p" slime-pprint-eval-last-expression)
;; Macroexpand
("\C-c\C-m" slime-macroexpand-1)
("\C-c\M-m" slime-macroexpand-all)
;; Misc
("\C-c\C-u" slime-undefine-function)
([?\C-\M-.] slime-next-location)
;; Obsolete, redundant bindings
("\C-c\C-i" slime-complete-symbol)
;;("\M-*" pop-tag-mark) ; almost to clever
))
(defvar slime-keys
(append slime-editing-keys
'( ;; Compiler notes
("\M-p" slime-previous-note)
("\M-n" slime-next-note)
("\C-c\M-c" slime-remove-notes)
("\C-c\C-k" slime-compile-and-load-file)
("\C-c\M-k" slime-compile-file)
("\C-c\C-c" slime-compile-defun)
)))
(defun slime-nop ()
"The null command. Used to shadow currently-unused keybindings."
(interactive)
(call-interactively 'undefined))
(defvar slime-doc-map (make-sparse-keymap)
"Keymap for documentation commands. Bound to a prefix key.")
(defvar slime-doc-bindings
'((?a slime-apropos)
(?z slime-apropos-all)
(?p slime-apropos-package)
(?d slime-describe-symbol)
(?f slime-describe-function)
(?h slime-hyperspec-lookup)
(?~ common-lisp-hyperspec-format)
(?# common-lisp-hyperspec-lookup-reader-macro)))
(defvar slime-who-map (make-sparse-keymap)
"Keymap for who-xref commands. Bound to a prefix key.")
(defvar slime-who-bindings
'((?c slime-who-calls)
(?w slime-calls-who)
(?r slime-who-references)
(?b slime-who-binds)
(?s slime-who-sets)
(?m slime-who-macroexpands)
(?a slime-who-specializes)))
(defun slime-init-keymaps ()
"(Re)initialize the keymaps for `slime-mode'."
(interactive)
;; Documentation
(define-prefix-command 'slime-doc-map)
(slime-define-both-key-bindings slime-doc-map slime-doc-bindings)
;; Who-xref
(define-prefix-command 'slime-who-map)
(slime-define-both-key-bindings slime-who-map slime-who-bindings)
;; Prefix map
(define-prefix-command 'slime-prefix-map)
(loop for (key binding) in slime-prefix-bindings
do (define-key slime-prefix-map key binding))
;; Parent map
(setq slime-parent-map (make-sparse-keymap))
(loop for (key binding) in slime-parent-bindings
do (define-key slime-parent-map key binding))
;; Slime mode map
(set-keymap-parent slime-mode-map slime-parent-map)
(loop for (key command) in slime-keys
do (define-key slime-mode-map key command)))
(defun slime-define-both-key-bindings (keymap bindings)
(loop for (char command) in bindings do
;; We bind both unmodified and with control.
(define-key keymap `[,char] command)
(unless (equal char ?h) ; But don't bind C-h
(define-key keymap `[(control ,char)] command))))
(slime-init-keymaps)
;;;; Setup initial `slime-mode' hooks
(make-variable-buffer-local
(defvar slime-pre-command-actions nil
"List of functions to execute before the next Emacs command.
This list of flushed between commands."))
(defun slime-pre-command-hook ()
"Execute all functions in `slime-pre-command-actions', then NIL it."
(dolist (undo-fn slime-pre-command-actions)
(funcall undo-fn))
(setq slime-pre-command-actions nil))
(defun slime-post-command-hook ()
(when (null pre-command-hook) ; sometimes this is lost
(add-hook 'pre-command-hook 'slime-pre-command-hook)))
(defun slime-setup-command-hooks ()
"Setup a buffer-local `pre-command-hook' to call `slime-pre-command-hook'."
(slime-add-local-hook 'pre-command-hook 'slime-pre-command-hook)
(slime-add-local-hook 'post-command-hook 'slime-post-command-hook))
;;;; Framework'ey bits
;;;
;;; This section contains some standard SLIME idioms: basic macros,
;;; ways of showing messages to the user, etc. All the code in this
;;; file should use these functions when applicable.
;;;
;;;;; Syntactic sugar
(defmacro* when-let ((var value) &rest body)
"Evaluate VALUE, and if the result is non-nil bind it to VAR and
evaluate BODY.
\(fn (VAR VALUE) &rest BODY)"
`(let ((,var ,value))
(when ,var ,@body)))
(put 'when-let 'lisp-indent-function 1)
(defmacro destructure-case (value &rest patterns)
"Dispatch VALUE to one of PATTERNS.
A cross between `case' and `destructuring-bind'.
The pattern syntax is:
((HEAD . ARGS) . BODY)
The list of patterns is searched for a HEAD `eq' to the car of
VALUE. If one is found, the BODY is executed with ARGS bound to the
corresponding values in the CDR of VALUE."
(let ((operator (gensym "op-"))
(operands (gensym "rand-"))
(tmp (gensym "tmp-")))
`(let* ((,tmp ,value)
(,operator (car ,tmp))
(,operands (cdr ,tmp)))
(case ,operator
,@(mapcar (lambda (clause)
(if (eq (car clause) t)
`(t ,@(cdr clause))
(destructuring-bind ((op &rest rands) &rest body) clause
`(,op (destructuring-bind ,rands ,operands
. ,body)))))
patterns)
,@(if (eq (caar (last patterns)) t)
'()
`((t (error "Elisp destructure-case failed: %S" ,tmp))))))))
(put 'destructure-case 'lisp-indent-function 1)
(defmacro slime-define-keys (keymap &rest key-command)
"Define keys in KEYMAP. Each KEY-COMMAND is a list of (KEY COMMAND)."
`(progn . ,(mapcar (lambda (k-c) `(define-key ,keymap . ,k-c))
key-command)))
(put 'slime-define-keys 'lisp-indent-function 1)
(defmacro* with-struct ((conc-name &rest slots) struct &body body)
"Like with-slots but works only for structs.
\(fn (CONC-NAME &rest SLOTS) STRUCT &body BODY)"
(flet ((reader (slot) (intern (concat (symbol-name conc-name)
(symbol-name slot)))))
(let ((struct-var (gensym "struct")))
`(let ((,struct-var ,struct))
(symbol-macrolet
,(mapcar (lambda (slot)
(etypecase slot
(symbol `(,slot (,(reader slot) ,struct-var)))
(cons `(,(first slot) (,(reader (second slot))
,struct-var)))))
slots)
. ,body)))))
(put 'with-struct 'lisp-indent-function 2)
;;;;; Very-commonly-used functions
(defvar slime-message-function 'message)
;; Interface
(defun slime-message (format &rest args)
"Like `message' but with special support for multi-line messages.
Single-line messages use the echo area."
(apply slime-message-function format args))
(defun slime-display-warning (message &rest args)
(display-warning '(slime warning) (apply #'format message args)))
(when (or (featurep 'xemacs))
(setq slime-message-function 'slime-format-display-message))
(defun slime-format-display-message (format &rest args)
(slime-display-message (apply #'format format args) "*SLIME Note*"))
(defun slime-display-message (message buffer-name)
"Display MESSAGE in the echo area or in BUFFER-NAME.
Use the echo area if MESSAGE needs only a single line. If the MESSAGE
requires more than one line display it in BUFFER-NAME and add a hook
to `slime-pre-command-actions' to remove the window before the next
command."
(when (get-buffer-window buffer-name) (delete-windows-on buffer-name))
(cond ((or (string-match "\n" message)
(> (length message) (1- (frame-width))))
(lexical-let ((buffer (get-buffer-create buffer-name)))
(with-current-buffer buffer
(erase-buffer)
(insert message)
(goto-char (point-min))
(let ((win (slime-create-message-window)))
(set-window-buffer win (current-buffer))
(shrink-window-if-larger-than-buffer
(display-buffer (current-buffer)))))
(push (lambda () (delete-windows-on buffer) (bury-buffer buffer))
slime-pre-command-actions)))
(t (message "%s" message))))
(defun slime-create-message-window ()
"Create a window at the bottom of the frame, above the minibuffer."
(let ((previous (previous-window (minibuffer-window))))
(when (<= (window-height previous) (* 2 window-min-height))
(save-selected-window
(select-window previous)
(enlarge-window (- (1+ (* 2 window-min-height))
(window-height previous)))))
(split-window previous)))
(defvar slime-background-message-function 'slime-display-oneliner)
;; Interface
(defun slime-background-message (format-string &rest format-args)
"Display a message in passing.
This is like `slime-message', but less distracting because it
will never pop up a buffer or display multi-line messages.
It should be used for \"background\" messages such as argument lists."
(apply slime-background-message-function format-string format-args))
(defun slime-display-oneliner (format-string &rest format-args)
(let* ((msg (apply #'format format-string format-args)))
(unless (minibuffer-window-active-p (minibuffer-window))
(message "%s" (slime-oneliner msg)))))
(defun slime-oneliner (string)
"Return STRING truncated to fit in a single echo-area line."
(substring string 0 (min (length string)
(or (position ?\n string) most-positive-fixnum)
(1- (frame-width)))))
(defun slime-bug (message &rest args)
(slime-display-warning
"%S:%d:%d (pt=%d).
%s
This is a bug in Slime itself. Please report this to the
mailinglist slime-devel@common-lisp.net and include your Emacs
version, the guilty Lisp source file, the header of this
message, and the following backtrace.
Backtrace:
%s
--------------------------------------------------------------
"
(buffer-name)
(line-number-at-pos)
(current-column)
(point)
(apply #'format message args)
(with-output-to-string (backtrace))))
;; Interface
(defun slime-set-truncate-lines ()
"Apply `slime-truncate-lines' to the current buffer."
(when slime-truncate-lines
(set (make-local-variable 'truncate-lines) t)))
;; Interface
(defun slime-read-package-name (prompt &optional initial-value)
"Read a package name from the minibuffer, prompting with PROMPT."
(let ((completion-ignore-case t))
(completing-read prompt (slime-bogus-completion-alist
(slime-eval
`(swank:list-all-package-names t)))
nil t initial-value)))
;; Interface
(defun slime-read-symbol-name (prompt &optional query)
"Either read a symbol name or choose the one at point.
The user is prompted if a prefix argument is in effect, if there is no
symbol at point, or if QUERY is non-nil.
This function avoids mistaking the REPL prompt for a symbol."
(cond ((or current-prefix-arg query (not (slime-symbol-at-point)))
(slime-read-from-minibuffer prompt (slime-symbol-at-point)))
(t (slime-symbol-at-point))))
;; Interface
(defmacro slime-propertize-region (props &rest body)
"Execute BODY and add PROPS to all the text it inserts.
More precisely, PROPS are added to the region between the point's
positions before and after executing BODY."
(let ((start (gensym)))
`(let ((,start (point)))
(prog1 (progn ,@body)
(add-text-properties ,start (point) ,props)))))
(put 'slime-propertize-region 'lisp-indent-function 1)
(defun slime-add-face (face string)
(add-text-properties 0 (length string) (list 'face face) string)
string)
(put 'slime-add-face 'lisp-indent-function 1)
;; Interface
(defsubst slime-insert-propertized (props &rest args)
"Insert all ARGS and then add text-PROPS to the inserted text."
(slime-propertize-region props (apply #'insert args)))
(defmacro slime-with-rigid-indentation (level &rest body)
"Execute BODY and then rigidly indent its text insertions.
Assumes all insertions are made at point."
(let ((start (gensym)) (l (gensym)))
`(let ((,start (point)) (,l ,(or level '(current-column))))
(prog1 (progn ,@body)
(slime-indent-rigidly ,start (point) ,l)))))
(put 'slime-with-rigid-indentation 'lisp-indent-function 1)
(defun slime-indent-rigidly (start end column)
;; Similar to `indent-rigidly' but doesn't inherit text props.
(save-excursion
(goto-char end)
(beginning-of-line)
(while (and (<= start (point))
(progn
(save-excursion (insert-char ?\ column))
(zerop (forward-line -1)))))))
(defun slime-insert-indented (&rest strings)
"Insert all arguments rigidly indented."
(slime-with-rigid-indentation nil
(apply #'insert strings)))
(defun slime-property-bounds (prop)
"Return two the positions of the previous and next changes to PROP.
PROP is the name of a text property."
(assert (get-text-property (point) prop))
(let ((end (next-single-char-property-change (point) prop)))
(list (previous-single-char-property-change end prop) end)))
(defun slime-curry (fun &rest args)
`(lambda (&rest more) (apply ',fun (append ',args more))))
(defun slime-rcurry (fun &rest args)
`(lambda (&rest more) (apply ',fun (append more ',args))))
;;;;; Snapshots of current Emacs state
;;; Window configurations do not save (and hence not restore)
;;; any narrowing that could be applied to a buffer.
;;;
;;; For this purpose, we introduce a superset of a window
;;; configuration that does include the necessary information to
;;; properly restore narrowing.
;;;
;;; We call this superset an Emacs Snapshot.
(defstruct (slime-narrowing-configuration
(:conc-name slime-narrowing-configuration.))
narrowedp beg end)
(defstruct (slime-emacs-snapshot (:conc-name slime-emacs-snapshot.))
;; We explicitly store the value of point even though it's implicitly
;; stored in the window-configuration because Emacs provides no
;; way to access the things stored in a window configuration.
window-configuration narrowing-configuration point-marker)
(defun slime-current-narrowing-configuration (&optional buffer)
(with-current-buffer (or buffer (current-buffer))
(make-slime-narrowing-configuration :narrowedp (slime-buffer-narrowed-p)
:beg (point-min-marker)
:end (point-max-marker))))
(defun slime-set-narrowing-configuration (narrowing-cfg)
(when (slime-narrowing-configuration.narrowedp narrowing-cfg)
(narrow-to-region (slime-narrowing-configuration.beg narrowing-cfg)
(slime-narrowing-configuration.end narrowing-cfg))))
(defun slime-current-emacs-snapshot (&optional frame)
"Returns a snapshot of the current state of FRAME, or the
currently active frame if FRAME is not given respectively."
(with-current-buffer
(if frame
(window-buffer (frame-selected-window (selected-frame)))
(current-buffer))
(make-slime-emacs-snapshot
:window-configuration (current-window-configuration frame)
:narrowing-configuration (slime-current-narrowing-configuration)
:point-marker (point-marker))))
(defun slime-set-emacs-snapshot (snapshot)
"Restores the state of Emacs according to the information saved
in SNAPSHOT."
(let ((window-cfg (slime-emacs-snapshot.window-configuration snapshot))
(narrowing-cfg (slime-emacs-snapshot.narrowing-configuration snapshot))
(marker (slime-emacs-snapshot.point-marker snapshot)))
(set-window-configuration window-cfg) ; restores previously current buffer.
(slime-set-narrowing-configuration narrowing-cfg)
(goto-char (marker-position marker))))
(defun slime-current-emacs-snapshot-fingerprint (&optional frame)
"Return a fingerprint of the current emacs snapshot.
Fingerprints are `equalp' if and only if they represent window
configurations that are very similar (same windows and buffers.)
Unlike real window-configuration objects, fingerprints are not
sensitive to the point moving and they can't be restored."
(mapcar (lambda (window) (list window (window-buffer window)))
(slime-frame-windows frame)))