Jos Visser <[EMAIL PROTECTED]> writes: > There are a number of ops that could fail. Examples are find_lex but > also the various load and lookup ops. Options for handling failure are: > > - Abort parrot > - Throw an exception > - Return a default (null) value > > I think it is hard for the parrot designers to decide what language > implementors want (given the vast array of languages out there for which > parrot is a godsend). I am currently extending my OpenComal interpreter > with a parrot code generator and since Comal is a somewhat awkward > language I need different things than the average perl/python/hq9 > implementor. > > I would therefore vote for a feature where I (as language designer) > could indicate whether for instance a find_lex (but others too) fails > silently (null return value) or with an exception. > > Maybe this should be a global something...
Not global. Or, if it is global, it needs to be dynamically scoped since you could possibly have different modules implemented in different languages. -- Piers
