(defclass ccc () ())
(setf (find-class 'ccc1) (find-class 'ccc))
(defmethod zut ((c ccc1)) 123)
+ In sbcl-0.7.1.13, this gives an error,
+ There is no class named CCC1.
DTC's recommended workaround from the mailing list 3 Mar 2000:
(setf (pcl::find-class 'ccc1) (pcl::find-class 'ccc))
ANSI spec, bare 'MEMBER, 'AND, and 'OR are not legal types, CMUCL
(and now SBCL) interpret them as legal types.
-44:
- ANSI specifies DEFINE-SYMBOL-MACRO, but it's not defined in SBCL.
- CMU CL added it ca. Aug 13, 2000, after some discussion on the mailing
- list, and it is probably possible to use substantially the same
- patches to add it to SBCL.
-
45:
a slew of floating-point-related errors reported by Peter Van Eynde
on July 25, 2000:
c: SYMBOL-MACROLET should signal PROGRAM-ERROR if something
it binds is declared SPECIAL inside.
-50:
- type system errors reported by Peter Van Eynde July 25, 2000:
- c: (SUBTYPEP '(INTEGER (0) (0)) 'NIL) dies with nested errors.
- d: In general, the system doesn't like '(INTEGER (0) (0)) -- it
- blows up at the level of SPECIFIER-TYPE with
- "Lower bound (0) is greater than upper bound (0)." Probably
- SPECIFIER-TYPE should return the NIL type instead.
- g: The type system isn't all that smart about relationships
- between hairy types, as shown in the type.erg test results,
- e.g. (SUBTYPEP 'CONS '(NOT ATOM)) => NIL, NIL.
-
51:
miscellaneous errors reported by Peter Van Eynde July 25, 2000:
a: (PROGN
it should probably look at the class name, the way that it does
for STRUCTURE-OBJECTs.
-69:
- As reported by Martin Atzmueller on the sbcl-devel list 2000-11-22,
- > There remains one issue, that is a bug in SBCL:
- > According to my interpretation of the spec, the ":" and "@" modifiers
- > should appear _after_ the comma-seperated arguments.
- > Well, SBCL (and CMUCL for that matter) accept
- > (ASSERT (STRING= (FORMAT NIL "~:8D" 1) " 1"))
- > where the correct way (IMHO) should be
- > (ASSERT (STRING= (FORMAT NIL "~8:D" 1) " 1"))
- Probably SBCL should stop accepting the "~:8D"-style format arguments,
- or at least issue a warning.
-
70:
(probably related to bug #65; maybe related to bug #109)
The compiler doesn't like &OPTIONAL arguments in LABELS and FLET
it would decrease efficiency more than is probably necessary. Perhaps
using some sort of accept/reject method would be better.
-84:
- (SUBTYPEP '(SATISFIES SOME-UNDEFINED-FUN) NIL)=>NIL,T (should be NIL,NIL)
-
85:
Internally the compiler sometimes evaluates
(sb-kernel:type/= (specifier-type '*) (specifier-type t))
arguments in FLET/LABELS: it might be an old Python bug which is
only exercised by the new arrangement of the SBCL compiler.)
-132:
- Trying to compile
- (DEFUN FOO () (CATCH 0 (PRINT 1331)))
- gives an error
- #<SB-C:TN '0!1> is not valid as the second argument to VOP:
- SB-C:MAKE-CATCH-BLOCK,
- since the TN's primitive type SB-VM::POSITIVE-FIXNUM doesn't allow
- any of the SCs allowed by the operand restriction:
- (SB-VM::DESCRIPTOR-REG)
- The (CATCH 0 ...) construct is bad style (because of unportability
- of EQ testing of numbers) but it is legal, and shouldn't cause an
- internal compiler error. (This error occurs in sbcl-0.6.13 and in
- 0.pre7.86.flaky7.14.)
-
135:
Ideally, uninterning a symbol would allow it, and its associated
FDEFINITION and PROCLAIM data, to be reclaimed by the GC. However,
T
T
+ This is probably due to underzealous clearing of the type caches; a
+ brute-force solution in that case would be to make a defclass expand
+ into something that included a call to SB-KERNEL::CLEAR-TYPE-CACHES,
+ but there may be a better solution.
+
141:
Pretty-printing nested backquotes doesn't work right, as
reported by Alexey Dejneka sbcl-devel 2002-01-13:
it with only one entry in LEAF-REFS.
148:
- In sbcl-0.7.1.3 on x86, COMPILE-FILE on this file
+ In sbcl-0.7.1.3 on x86, COMPILE-FILE on the file
(in-package :cl-user)
(defvar *thing*)
(defvar *zoom*)
fails with
debugger invoked on condition of type TYPE-ERROR:
The value NIL is not of type SB-C::NODE.
- in IR1-OPTIMIZE-BLOCK.
-
+ The location of this failure has moved around as various related
+ issues were cleaned up. As of sbcl-0.7.1.9, it occurs in
+ NODE-BLOCK called by LAMBDA-COMPONENT called by IR2-CONVERT-CLOSURE.
+
+151:
+ From the ANSI description of GET-DISPATCH-MACRO-CHARACTER, it
+ should return NIL when there is no definition, e.g.
+ (GET-DISPATCH-MACRO-CHARACTER #\# #\{) => NIL
+ Instead, in sbcl-0.7.1.17 it returns
+ #<FUNCTION "top level local call SB!IMPL::DISPATCH-CHAR-ERROR">
+
+153:
+ (essentially the same problem as a CMU CL bug reported by Martin
+ Cracauer on cmucl-imp 2002-02-19)
+ There is a hole in structure slot type checking. Compiling and LOADing
+ (declaim (optimize safety))
+ (defstruct foo
+ (bla 0 :type fixnum))
+ (defun f ()
+ (let ((foo (make-foo)))
+ (setf (foo-bla foo) '(1 . 1))
+ (format t "Is ~a of type ~a a cons? => ~a~%"
+ (foo-bla foo)
+ (type-of (foo-bla foo))
+ (consp (foo-bla foo)))))
+ (f)
+ should signal an error, but in sbcl-0.7.1.21 instead gives the output
+ Is (1 . 1) of type CONS a cons? => NIL
+ without signalling an error.
+
+154:
+ There's some sort of problem with aborting back out of the debugger
+ after a %DETECT-STACK-EXHAUSTION error in sbcl-0.7.1.38. In some cases
+ telling the debugger to ABORT doesn't get you back to the main REPL,
+ but instead just gives you another stack exhaustion error. The problem
+ doesn't occur in the trivial case
+ * (defun frob () (frob) (frob))
+ FROB
+ * (frob)
+ but it has happened in more complicated cases (which I haven't
+ figured out how to reproduce).
+
+155:
+ Executing
+ (defclass standard-gadget (basic-gadget) ())
+ (defclass basic-gadget () ())
+ gives an error:
+ The slot SB-PCL::DIRECT-SUPERCLASSES is unbound in the
+ object #<SB-PCL::STANDARD-CLASS "unbound">.
+ (reported by Brian Spilsbury sbcl-devel 2002-04-09)
DEFUNCT CATEGORIES OF BUGS
IR1-#:
- These numbers were used for bugs related to the old IR1
- interpreter. The # values reached 6 before the category
- was closed down.
\ No newline at end of file
+ These labels were used for bugs related to the old IR1 interpreter.
+ The # values reached 6 before the category was closed down.
projects / sbcl.git / blobdiff