7 Nov
2011
7 Nov
'11
10 a.m.
On 7 Nov 2011, at 01:19, Duncan Coutts wrote:
The concrete example is in ghc:
ptext (sLit "In module") <+> quotes (ppr (is_mod decl_spec)) <+> source_import <> colon
BTW, I should note that it looks like this is the only instance of this problem in the whole of ghc
So let's just fix ghc here. It looks to me like whoever wrote that code was relying on a non-obvious consequence of the precedence. At a glance, it looks like there is intended to be a space before the source_import and colon. And that is exactly what the proposed fixities for <> and <+> will give. I find it hard to believe that many people would consciously have relied on the older behaviour. Regards, Malcolm