X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Ftypes%2FFunDeps.lhs;h=170304c59f70c424aa5c3e5750028b7923e272a4;hb=63179a7b10069d8f69f5bceef27008c9c7fb0aa8;hp=7f9f0509e2f2a14f58a6d4a817dd9622fa38746b;hpb=37cc35d23202c9846e68e4c0a279fa75273f6f1c;p=ghc-hetmet.git diff --git a/compiler/types/FunDeps.lhs b/compiler/types/FunDeps.lhs index 7f9f050..170304c 100644 --- a/compiler/types/FunDeps.lhs +++ b/compiler/types/FunDeps.lhs @@ -203,7 +203,7 @@ type Equation = (TyVarSet, [(Type, Type)]) pprEquation :: Equation -> SDoc pprEquation (qtvs, pairs) = vcat [ptext (sLit "forall") <+> braces (pprWithCommas ppr (varSetElems qtvs)), - nest 2 (vcat [ ppr t1 <+> ptext (sLit ":=:") <+> ppr t2 | (t1,t2) <- pairs])] + nest 2 (vcat [ ppr t1 <+> ptext (sLit "~") <+> ppr t2 | (t1,t2) <- pairs])] \end{code} Given a bunch of predicates that must hold, such as @@ -320,7 +320,7 @@ checkClsFD qtvs fd clas_tvs tys1 tys2 -- tys2 = [Maybe t1, t2] -- -- We can instantiate x to t1, and then we want to force --- (Tree x) [t1/x] :=: t2 +-- (Tree x) [t1/x] ~ t2 -- -- This function is also used when matching two Insts (rather than an Inst -- against an instance decl. In that case, qtvs is empty, and we are doing