I do not know whether this is helpful, but report this for any occasion.
For the program of kind
...
parseUMons(R : SetCategory, lexemes : LexList) : DPair Any ==
empty? lexemes => error "parseUMons(R, )"
lx := first lexemes
lexs := rest lexemes
lx = "]" =>
empty? lexs => error ".."
rPar := first lexs
remLexs := coerce(rest lexs) $ANY1(LexList)
rPar ~= ")" => error "parseUMons(R, ] _ ) :
no closing ) after monimial list."
[coerce([]) $ANY1(List Pair(R, Integer)), remLexs]
...
(having wrong indentation in the last line)
the compiler returns the following full report
(which I format a bit and remove `Time:' ) :
-------------------
Compiling FriCAS source code from file
/home/mechvel/ghc/axiomInterface/fromA-aim/dParse.spad using old
system compiler.
DPARSE1 abbreviates package DParse1
initializing NRLIB DPARSE1 for DParse1
compiling into NRLIB DPARSE1
processing macro definition ANY1 ==> AnyFunctions1
importing DChar1
compiling exported dParse : (Union(SetCategory,failed),String) -> Any
compiling exported dParse : String -> Any
compiling exported dParseL : List String -> List Any
compiling exported dParseL : (Union(SetCategory,failed),List String) ->
List Any
compiling exported parseUMon : (SetCategory,List String) -> List Any
compiling exported parseUMons : (SetCategory,List String) -> List Any
Internal Error
Unexpected error in call to system function canReturn
-------------------
-- no info about the line number, etc.
Probably `error' is a system call (?)
But if parseUMons has many lines and many system calls, then it is
difficult to find which one is responsible.
Regards,
------
Sergei
[email protected]
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