1.0.36.1: Improve backtrace from THROW to unknown tag on x86oids.

[sbcl.git] / src / code / condition.lisp

diff --git a/src/code/condition.lisp b/src/code/condition.lisp
index 7592df6..f9909cb 100644 (file)
--- a/src/code/condition.lisp
+++ b/src/code/condition.lisp
@@ -576,20 +576,6 @@
                               ',(all-writers)
                               (sb!c:source-location)))))))
 \f
-;;;; DESCRIBE on CONDITIONs
-
-;;; a function to be used as the guts of DESCRIBE-OBJECT (CONDITION T)
-;;; eventually (once we get CLOS up and running so that we can define
-;;; methods)
-(defun describe-condition (condition stream)
-  (format stream
-          "~&~@<~S ~_is a ~S. ~_Its slot values are ~_~S.~:>~%"
-          condition
-          (type-of condition)
-          (concatenate 'list
-                       (condition-actual-initargs condition)
-                       (condition-assigned-slots condition))))
-\f
 ;;;; various CONDITIONs specified by ANSI
 
 (define-condition serious-condition (condition) ())
@@ -1217,6 +1203,17 @@ SB-EXT:PACKAGE-LOCKED-ERROR-SYMBOL."))
   (:default-initargs :references `((:ansi-cl :section (2 1 1 2))
                                    (:ansi-cl :glossary "standard readtable"))))
 
+(define-condition standard-pprint-dispatch-table-modified-error
+    (reference-condition error)
+  ((operation :initarg :operation
+              :reader standard-pprint-dispatch-table-modified-operation))
+  (:report (lambda (condition stream)
+             (format stream "~S would modify the standard pprint dispatch table."
+                     (standard-pprint-dispatch-table-modified-operation
+                      condition))))
+  (:default-initargs
+      :references `((:ansi-cl :glossary "standard pprint dispatch table"))))
+
 (define-condition timeout (serious-condition)
   ((seconds :initarg :seconds :initform nil :reader timeout-seconds))
   (:report (lambda (condition stream)