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May 2015

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2 discussions

Slime startup sometimes: Undefined function SWANK::SYMBOL-INDENTATION
by Mark H. David 12 Dec '15

12 Dec '15

I frequently see this (see debugger backtrace below) when starting SLIME. Not all the time. I suspect it's a timing issue. Anyone see this? Anyone looked into fixing? Thanks, --Mark Undefined function SWANK::SYMBOL-INDENTATION called with arguments (:BREAK-OPTIONS-STRING) . [Condition of type CCL::UNDEFINED-FUNCTION-CALL] Restarts: 0: [CONTINUE] Retry applying SWANK::SYMBOL-INDENTATION to (:BREAK-OPTIONS-STRING). 1: [USE-VALUE] Apply specified function to (:BREAK-OPTIONS-STRING) this time. 2: [STORE-VALUE] Specify a function to use as the definition of SWANK::SYMBOL-INDENTATION. 3: [ABORT-BREAK] Reset this thread 4: [ABORT] Kill this thread Backtrace: 0: ((:INTERNAL SWANK::CONSIDER SWANK::UPDATE-INDENTATION/DELTA-FOR-EMACS) :BREAK-OPTIONS-STRING) 1: (#<Anonymous Function #x302000BD1E4F> :BREAK-OPTIONS-STRING) 2: (CCL::APPLY-TO-HTAB-SYMS #<COMPILED-LEXICAL-CLOSURE #x2389553F> #(:NFRAMES #<Unbound> :CODE 0 :PAUSE-PERIOD 0 ...)) 3: (CCL::ITERATE-OVER-PRESENT-SYMBOLS #<Package "KEYWORD"> #<COMPILED-LEXICAL-CLOSURE #x2389553F>) 4: (CCL::ITERATE-OVER-ALL-SYMBOLS #<COMPILED-LEXICAL-CLOSURE #x2389553F>) 5: (SWANK::UPDATE-INDENTATION/DELTA-FOR-EMACS #<HASH-TABLE :TEST EQ size 228/305 #x302000AC574D> (#<Package "X86-DARWIN64"> #<Package "X8664"> #<Package "KEYWORD"> #<Package "CCL"> ..) #<Package "COMMON-.. 6: (SWANK::PERFORM-INDENTATION-UPDATE #<MULTITHREADED-CONNECTION #x302000AC56AD> (#<Package "X86-DARWIN64"> #<Package "X8664"> #<Package "KEYWORD"> #<Package "CCL"> #<Package "COMMON-LISP"> ..) #<Package.. 7: ((:INTERNAL SWANK::INDENTATION-CACHE-LOOP)) 8: (SWANK/BACKEND:CALL-WITH-DEBUGGER-HOOK #<Compiled-function SWANK:SWANK-DEBUGGER-HOOK #x302000A414FF> #<COMPILED-LEXICAL-CLOSURE (:INTERNAL SWANK::INDENTATION-CACHE-LOOP) #x302000ACFD1F>) 9: (SWANK::INDENTATION-CACHE-LOOP #<MULTITHREADED-CONNECTION #x302000AC56AD>) 10: (CCL::RUN-PROCESS-INITIAL-FORM #<PROCESS swank-indentation-cache-thread(6) [Active] #x302000AC982D> (#<COMPILED-LEXICAL-CLOSURE (:INTERNAL CCL::%PROCESS-RUN-FUNCTION) #x302000AC95BF>)) 11: ((:INTERNAL (CCL::%PROCESS-PRESET-INTERNAL (PROCESS))) #<PROCESS swank-indentation-cache-thread(6) [Active] #x302000AC982D> (#<COMPILED-LEXICAL-CLOSURE (:INTERNAL ..))) 12: ((:INTERNAL CCL::THREAD-MAKE-STARTUP-FUNCTION))

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Swank-fancy-inspector patch
by Douglas Katzman 01 May '15

01 May '15

The patch inlined below fixes the display of DEFTYPE lambda lists. It's compatible enough with older SBCL - extracting the expander's arglist is just a gensym, not technically wrong but not as useful as the destructuring lambda list. While this could be considered a regression, I don't think it needs conditionalizing on SBCL release. The way to do so, in theory, is check whether (:type :lambda-list) is a kind of info by asking for meta-info ... except that it won't actually fix anything because current SBCL reports that (:type :lambda-list) exists, but it never has data. --- swank-fancy-inspector.lisp~ 2015-04-30 23:24:08.000000000 -0400 +++ swank-fancy-inspector.lisp 2015-04-30 23:34:31.000000000 -0400 @@ -119,10 +119,7 @@ (unless (eq t fun) (append `("Type-specifier lambda-list: " - ,(inspector-princ - (if (eq :primitive kind) - (arglist fun) - (sb-int:info :type :lambda-list symbol))) + ,(inspector-princ (arglist fun)) (:newline)) (multiple-value-bind (expansion ok) (handler-case (sb-ext:typexpand-1 symbol)

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