11 Nov
2012
11 Nov
'12
2:22 p.m.
On 11 November 2012 15:34, Herbert Valerio Riedel
I'd argue that there is no harm in allowing this kind of compile-time conditional APIs using the DefaultSignature language extension.
I agree. There's one minor issue: Say some client does not intend to rely on DefaultSignatures but forgets to write a definition for the method. He will then not get a "No explicit method or default declaration" warning. However, in this case I think the benefits outweigh this disadvantage. FWIW I prefer that deepseq and hashable both use the DefaultSignatures extension to provide generic default definitions. Bas