gut ice-9 debug

* module/ice-9/debug.scm: Gut, though we keep the module around for code
  Out There that uses it.

* module/ice-9/top-repl.scm (top-repl): Don't import (ice-9 debug)

* module/ice-9/debugger/commands.scm:
* module/ice-9/debugging/trace.scm:
* module/ice-9/emacs.scm: Remove ice-9 debug includes.

module/ice-9/debug.scm

@@ -19,117 +19,7 @@
 ;;;;
 
 
-(define-module (ice-9 debug)
-  #:use-module (ice-9 save-stack)
-  #:export (frame-number->index trace untrace trace-stack untrace-stack))
+(define-module (ice-9 debug))
 
-
-;;; {Misc}
-;;;
-(define (frame-number->index n . stack)
-  (let ((stack (if (null? stack)
-		   (fluid-ref the-last-stack)
-		   (car stack))))
-    (if (memq 'backwards (debug-options))
-	n
-	(- (stack-length stack) n 1))))
-
-
-;;; {Trace}
-;;;
-;;; This code is just an experimental prototype (e. g., it is not
-;;; thread safe), but since it's at the same time useful, it's
-;;; included anyway.
-;;;
-(define traced-procedures '())
-
-(define (trace . args)
-  (if (null? args)
-      (nameify traced-procedures)
-      (begin
-	(for-each (lambda (proc)
-		    (if (not (procedure? proc))
-			(error "trace: Wrong type argument:" proc))
-		    (set-procedure-property! proc 'trace #t)
-		    (if (not (memq proc traced-procedures))
-			(set! traced-procedures
-			      (cons proc traced-procedures))))
-		  args)
-	(trap-set! apply-frame-handler trace-entry)
-	(trap-set! exit-frame-handler trace-exit)
-	;; We used to reset `trace-level' here to 0, but this is wrong
-	;; if `trace' itself is being traced, since `trace-exit' will
-	;; then decrement `trace-level' to -1!  It shouldn't actually
-	;; be necessary to set `trace-level' here at all.
-	(debug-enable 'trace)
-	(nameify args))))
-
-(define (untrace . args)
-  (if (and (null? args)
-	   (not (null? traced-procedures)))
-      (apply untrace traced-procedures)
-      (begin
-	(for-each (lambda (proc)
-		    (set-procedure-property! proc 'trace #f)
-		    (set! traced-procedures (delq! proc traced-procedures)))
-		  args)
-	(if (null? traced-procedures)
-	    (debug-disable 'trace))
-	(nameify args))))
-
-(define (nameify ls)
-  (map (lambda (proc)
-	 (let ((name (procedure-name proc)))
-	   (or name proc)))
-       ls))
-
-(define trace-level 0)
-(add-hook! abort-hook (lambda () (set! trace-level 0)))
-
-(define traced-stack-ids (list 'repl-stack))
-(define trace-all-stacks? #f)
-
-(define (trace-stack id)
-  "Add ID to the set of stack ids for which tracing is active.
-If `#t' is in this set, tracing is active regardless of stack context.
-To remove ID again, use `untrace-stack'.  If you add the same ID twice
-using `trace-stack', you will need to remove it twice."
-  (set! traced-stack-ids (cons id traced-stack-ids))
-  (set! trace-all-stacks? (memq #t traced-stack-ids)))
-
-(define (untrace-stack id)
-  "Remove ID from the set of stack ids for which tracing is active."
-  (set! traced-stack-ids (delq1! id traced-stack-ids))
-  (set! trace-all-stacks? (memq #t traced-stack-ids)))
-
-(define (trace-entry key cont tail)
-  (if (or trace-all-stacks?
-	  (memq (stack-id cont) traced-stack-ids))
-      (let ((cep (current-error-port))
-	    (frame (last-stack-frame cont)))
-	(if (not tail)
-	    (set! trace-level (+ trace-level 1)))
-	(let indent ((n trace-level))
-	  (cond ((> n 1) (display "|  " cep) (indent (- n 1)))))
-	(display-application frame cep)
-	(newline cep)))
-  ;; It's not necessary to call the continuation since
-  ;; execution will continue if the handler returns
-  ;(cont #f)
-  )
-
-(define (trace-exit key cont retval)
-  (if (or trace-all-stacks?
-	  (memq (stack-id cont) traced-stack-ids))
-      (let ((cep (current-error-port)))
-	(set! trace-level (- trace-level 1))
-	(let indent ((n trace-level))
-	  (cond ((> n 0) (display "|  " cep) (indent (- n 1)))))
-	(write retval cep)
-	(newline cep))))
-
-
-;;; A fix to get the error handling working together with the module system.
-;;;
-;;; XXX - Still needed?
-(module-set! the-root-module 'debug-options debug-options)
+(issue-deprecation-warning
+ "(ice-9 debug) is deprecated. Use (system vm trace) for tracing.")

module/ice-9/debugger/commands.scm

@@ -17,7 +17,6 @@
 ;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
 (define-module (ice-9 debugger commands)
-  #:use-module (ice-9 debug)
   #:use-module ((ice-9 scm-style-repl) #:select (bad-throw))
   #:use-module (ice-9 debugger)
   #:use-module (ice-9 debugger state)

module/ice-9/debugging/trace.scm

@@ -1,6 +1,6 @@
 ;;;; (ice-9 debugging trace) -- breakpoint trace behaviour
 
-;;; Copyright (C) 2002 Free Software Foundation, Inc.
+;;; Copyright (C) 2002, 2010 Free Software Foundation, Inc.
 ;;;
 ;;;; This library is free software; you can redistribute it and/or
 ;;;; modify it under the terms of the GNU Lesser General Public
@@ -17,7 +17,6 @@
 ;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
 (define-module (ice-9 debugging trace)
-  #:use-module (ice-9 debug)
   #:use-module (ice-9 debugger)
   #:use-module (ice-9 debugger utils)
   #:use-module (ice-9 debugging steps)

module/ice-9/emacs.scm

@@ -29,7 +29,6 @@
 ;;;
 
 (define-module (ice-9 emacs)
-  :use-module (ice-9 debug)
   :use-module (ice-9 threads)
   :use-module (ice-9 session)
   :use-module (ice-9 save-stack)

module/ice-9/top-repl.scm

@@ -54,16 +54,13 @@
     (process-use-modules 
      (append
       '(((ice-9 r5rs))
-        ((ice-9 session))
-        ((ice-9 debug)))
+        ((ice-9 session)))
       (if (provided? 'regex)
           '(((ice-9 regex)))
           '())
       (if (provided? 'threads)
           '(((ice-9 threads)))
           '())))
-    ;; load debugger on demand
-    (module-autoload! guile-user-module '(system vm debug) '(debug))
 
     (call-with-sigint
      (lambda ()