X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcode%2Ftarget-misc.lisp;h=04b1012b8999ea4fcb6bc090be5b98e75e509125;hb=0f3a5f2e8886d18d0b4f6485c38a42be629422ae;hp=946c682e7ee338aa5bd3af27c230ad996defa9c6;hpb=a530bbe337109d898d5b4a001fc8f1afa3b5dc39;p=sbcl.git diff --git a/src/code/target-misc.lisp b/src/code/target-misc.lisp index 946c682..04b1012 100644 --- a/src/code/target-misc.lisp +++ b/src/code/target-misc.lisp @@ -13,46 +13,102 @@ ;;;; files for more information. (in-package "SB!IMPL") +;;;; Generalizing over SIMPLE-FUN, CLOSURE, and FUNCALLABLE-INSTANCEs -(file-comment - "$Header$") - -;;; cobbled from stuff in describe.lisp. -(defun function-doc (x) - (let ((name - (case (get-type x) - (#.sb!vm:closure-header-type - (%function-name (%closure-function x))) - ((#.sb!vm:function-header-type #.sb!vm:closure-function-header-type) - (%function-name x)) - (#.sb!vm:funcallable-instance-header-type - (typecase x - (byte-function - (sb!c::byte-function-name x)) - (byte-closure - (sb!c::byte-function-name (byte-closure-function x))) - (sb!eval:interpreted-function - (multiple-value-bind (exp closure-p dname) - (sb!eval:interpreted-function-lambda-expression x) - (declare (ignore exp closure-p)) - dname)) - (t ;; funcallable-instance - (%function-name - (funcallable-instance-function x)))))))) - (when (and name (typep name '(or symbol cons))) - (values (info :function :documentation name))))) - -(defvar *features* '#.sb-cold:*shebang-features* +;;; Underlying SIMPLE-FUN +(defun %fun-fun (function) + (declare (function function)) + (typecase function + (simple-fun + function) + (closure + (%closure-fun function)) + (funcallable-instance + (%fun-fun (funcallable-instance-fun function))))) + +(defun %fun-lambda-list (function) + (typecase function + #!+sb-eval + (sb!eval:interpreted-function + (sb!eval:interpreted-function-debug-lambda-list function)) + (t + (%simple-fun-arglist (%fun-fun function))))) + +(defun (setf %fun-lambda-list) (new-value function) + (typecase function + #!+sb-eval + (sb!eval:interpreted-function + (setf (sb!eval:interpreted-function-debug-lambda-list function) new-value)) + ;; FIXME: Eliding general funcallable-instances for now. + ((or simple-fun closure) + (setf (%simple-fun-arglist (%fun-fun function)) new-value))) + new-value) + +(defun %fun-type (function) + (%simple-fun-type (%fun-fun function))) + +;;; a SETFable function to return the associated debug name for FUN +;;; (i.e., the third value returned from CL:FUNCTION-LAMBDA-EXPRESSION), +;;; or NIL if there's none +(defun %fun-name (function) + (typecase function + #!+sb-eval + (sb!eval:interpreted-function + (sb!eval:interpreted-function-debug-name function)) + (t + (%simple-fun-name (%fun-fun function))))) + +(defun (setf %fun-name) (new-value function) + (typecase function + #!+sb-eval + (sb!eval:interpreted-function + (setf (sb!eval:interpreted-function-debug-name function) new-value)) + ;; FIXME: Eliding general funcallable-instances for now. + ((or simple-fun closure) + (setf (%simple-fun-name (%fun-fun function)) new-value))) + new-value) + +(defun %fun-doc (function) + (typecase function + #!+sb-eval + (sb!eval:interpreted-function + (sb!eval:interpreted-function-documentation function)) + (t + (%simple-fun-doc (%fun-fun function))))) + +(defun (setf %fun-doc) (new-value function) + (declare (type (or null string) new-value)) + (typecase function + #!+sb-eval + (sb!eval:interpreted-function + (setf (sb!eval:interpreted-function-documentation function) new-value)) + ((or simple-fun closure) + (setf (%simple-fun-doc (%fun-fun function)) new-value))) + new-value) + +;;; various environment inquiries + +(defvar *features* + '#.(sort (copy-list sb-cold:*shebang-features*) #'string<) #!+sb-doc "a list of symbols that describe features provided by the implementation") - -;;; various environment inquiries (defun machine-instance () #!+sb-doc "Return a string giving the name of the local machine." - (sb!unix:unix-gethostname)) + #!+win32 (sb!win32::get-computer-name) + #!-win32 (sb!unix:unix-gethostname)) + +(defvar *machine-version*) + +(defun machine-version () + #!+sb-doc + "Return a string describing the version of the computer hardware we +are running on, or NIL if we can't find any useful information." + (unless (boundp '*machine-version*) + (setf *machine-version* (get-machine-version))) + *machine-version*) ;;; FIXME: Don't forget to set these in a sample site-init file. ;;; FIXME: Perhaps the functions could be SETFable instead of having the @@ -67,13 +123,31 @@ #!+sb-doc "the value of LONG-SITE-NAME") (defun short-site-name () #!+sb-doc - "Returns a string with the abbreviated site name, or NIL if not known." + "Return a string with the abbreviated site name, or NIL if not known." *short-site-name*) (defun long-site-name () #!+sb-doc - "Returns a string with the long form of the site name, or NIL if not known." + "Return a string with the long form of the site name, or NIL if not known." *long-site-name*) +;;;; ED +(defvar *ed-functions* nil + "See function documentation for ED.") + +(defun ed (&optional x) + "Starts the editor (on a file or a function if named). Functions +from the list *ED-FUNCTIONS* are called in order with X as an argument +until one of them returns non-NIL; these functions are responsible for +signalling a FILE-ERROR to indicate failure to perform an operation on +the file system." + (dolist (fun *ed-functions* + (error 'extension-failure + :format-control "Don't know how to ~S ~A" + :format-arguments (list 'ed x) + :references (list '(:sbcl :variable *ed-functions*)))) + (when (funcall fun x) + (return t)))) + ;;;; dribble stuff ;;; Each time we start dribbling to a new stream, we put it in @@ -97,31 +171,47 @@ record of further I/O to that file. Without an argument, it closes the dribble file, and quits logging." (cond (pathname - (let* ((new-dribble-stream - (open pathname - :direction :output - :if-exists if-exists - :if-does-not-exist :create)) - (new-standard-output - (make-broadcast-stream *standard-output* new-dribble-stream)) - (new-error-output - (make-broadcast-stream *error-output* new-dribble-stream)) - (new-standard-input - (make-echo-stream *standard-input* new-dribble-stream))) - (push (list *dribble-stream* *standard-input* *standard-output* - *error-output*) - *previous-dribble-streams*) - (setf *dribble-stream* new-dribble-stream) - (setf *standard-input* new-standard-input) - (setf *standard-output* new-standard-output) - (setf *error-output* new-error-output))) - ((null *dribble-stream*) - (error "not currently dribbling")) - (t - (let ((old-streams (pop *previous-dribble-streams*))) - (close *dribble-stream*) - (setf *dribble-stream* (first old-streams)) - (setf *standard-input* (second old-streams)) - (setf *standard-output* (third old-streams)) - (setf *error-output* (fourth old-streams))))) + (let* ((new-dribble-stream + (open pathname + :direction :output + :if-exists if-exists + :if-does-not-exist :create)) + (new-standard-output + (make-broadcast-stream *standard-output* new-dribble-stream)) + (new-error-output + (make-broadcast-stream *error-output* new-dribble-stream)) + (new-standard-input + (make-echo-stream *standard-input* new-dribble-stream))) + (push (list *dribble-stream* *standard-input* *standard-output* + *error-output*) + *previous-dribble-streams*) + (setf *dribble-stream* new-dribble-stream) + (setf *standard-input* new-standard-input) + (setf *standard-output* new-standard-output) + (setf *error-output* new-error-output))) + ((null *dribble-stream*) + (error "not currently dribbling")) + (t + (let ((old-streams (pop *previous-dribble-streams*))) + (close *dribble-stream*) + (setf *dribble-stream* (first old-streams)) + (setf *standard-input* (second old-streams)) + (setf *standard-output* (third old-streams)) + (setf *error-output* (fourth old-streams))))) (values)) + +(defun %byte-blt (src src-start dst dst-start dst-end) + (%byte-blt src src-start dst dst-start dst-end)) + +;;;; some *LOAD-FOO* variables + +(defvar *load-print* nil + #!+sb-doc + "the default for the :PRINT argument to LOAD") + +(defvar *load-verbose* nil + ;; Note that CMU CL's default for this was T, and ANSI says it's + ;; implementation-dependent. We choose NIL on the theory that it's + ;; a nicer default behavior for Unix programs. + #!+sb-doc + "the default for the :VERBOSE argument to LOAD")