From 62bf25cb0931e761e8b2ff082a703d79386fc8bc Mon Sep 17 00:00:00 2001 From: Krzysztof Gogolewski Date: Wed, 16 Dec 2020 20:03:14 +0100 Subject: Display linear/multiplicity arrows correctly (#1238) Previously we were ignoring multiplicity and displayed a %1 -> b as a -> b. (cherry picked from commit b4b4d896d2d68d6c48e7db7bfe95c185ca0709cb) --- haddock-api/src/Haddock/Backends/Xhtml/Decl.hs | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'haddock-api/src/Haddock/Backends/Xhtml/Decl.hs') diff --git a/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs b/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs index eeb9fa94..0b0050df 100644 --- a/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs +++ b/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs @@ -1213,10 +1213,15 @@ ppr_mono_ty (HsTyVar _ prom (L _ name)) _ q _ | otherwise = ppDocName q Prefix True name ppr_mono_ty (HsStarTy _ isUni) u _ _ = toHtml (if u || isUni then "★" else "*") -ppr_mono_ty (HsFunTy _ _ ty1 ty2) u q e = +ppr_mono_ty (HsFunTy _ mult ty1 ty2) u q e = hsep [ ppr_mono_lty ty1 u q HideEmptyContexts - , arrow u <+> ppr_mono_lty ty2 u q e + , arr <+> ppr_mono_lty ty2 u q e ] + where arr = case mult of + HsLinearArrow _ -> lollipop u + HsUnrestrictedArrow _ -> arrow u + HsExplicitMult _ m -> multAnnotation <> ppr_mono_lty m u q e <+> arrow u + ppr_mono_ty (HsTupleTy _ con tys) u q _ = tupleParens con (map (ppLType u q HideEmptyContexts) tys) ppr_mono_ty (HsSumTy _ tys) u q _ = -- cgit v1.2.3