18 Jun
2009
18 Jun
'09
11:09 a.m.
Duncan Coutts wrote:
In practise, since ghc uses MonoPatBinds by default it'd mean that people who want to get back to H98 would need to use:
ghc-options: -XNoMonoPatBinds
Because the extensions field is additive, not subtractive. Using the name MonoPatBinds allows other compilers to implement it without it having to be the default.
hmm, that's annoying. Is it feasible for the extensions field to allow both addition and subtraction that override compiler defaults? (How does it work in LANGUAGE pragmas -- would NoMonoPatBinds still work in one of them?) -Isaac