Introduce with-inspector-handler to turn an exception into a value for the inspector

part of darcs patch Thu Sep 22 14:13:30 EEST 2005  Martin Gasbichler <gasbichl@informatik.uni-tuebingen.de>

scheme/eval-environment.scm

@@ -17,17 +17,13 @@
     (read string-port)))
 
 (define (eval-string str)
-  (with-fatal-and-capturing-error-handler
+  (with-inspector-handler
-   (lambda (condition raw-continuation continuation decline)
-     raw-continuation)
    (lambda ()
      (eval (read-sexp-from-string str)
            (evaluation-environment)))))
 
 (define (eval-s-expr s-expr)
-  (with-fatal-and-capturing-error-handler
+  (with-inspector-handler
-   (lambda (condition raw-continuation continuation decline)
-     raw-continuation)
    (lambda ()
      (eval s-expr (evaluation-environment)))))
 

scheme/inspector.scm

@@ -207,9 +207,6 @@
         (else
          (debug-message "inspector did not handle message " message))))))
 
-(register-plugin! 
- (make-view-plugin make-inspector 
-                   exception-continuation?))
 
 (define-record-type inspection-object :inspection-object
   (make-inspection-object val)
@@ -219,4 +216,10 @@
 (register-plugin! 
  (make-view-plugin (lambda (iv buffer)
                      (make-inspector (inspection-object-val iv) buffer))
-                  inspection-object?))
+                  inspection-object?))
+
+(define (with-inspector-handler thunk)
+  (with-fatal-and-capturing-error-handler
+   (lambda (condition raw-continuation continuation decline)
+     (make-inspection-object (cons condition raw-continuation)))
+   thunk))

scheme/nuit-engine.scm

@@ -288,9 +288,7 @@
     
 
 (define (eval-command-in-scheme-mode command-line)
-  (with-fatal-and-capturing-error-handler
+  (with-inspector-handler
-   (lambda (condition raw-continuation continuation decline)
-     raw-continuation)
    (lambda ()
      (if (scheme-command-line? command-line)
          (process-scheme-command command-line)

scheme/nuit-packages.scm

@@ -433,7 +433,8 @@
 ;;; inspector
 
 (define-interface inspection-objects-interface
-  (export make-inspection-object
+  (export with-inspector-handler
+          make-inspection-object
           inspection-object?))
 
 (define-structures 
@@ -451,6 +452,7 @@
         (subset srfi-13 (string-join))
         debug-data 
         (subset disclosers (template-debug-data))
+        inspect-exception
 
         focus-table
 	ncurses
@@ -499,7 +501,7 @@
   (open scheme
         srfi-6
 
-	inspect-exception
+	inspection-objects
         rt-modules)
   (files eval-environment))
 
@@ -912,7 +914,7 @@
         srfi-8
 	srfi-13
 	debugging
-        inspect-exception
+        inspection-objects
         tty-debug
 	threads
 	rendezvous
@@ -928,6 +930,7 @@
 	initial-tty
 	nuit-windows 
         modal-window
+        inspect-exception
 
 	configuration
 	command-line-parser