From 901b327f46dc4bd70cd310ae2c6339aa9ce572bb Mon Sep 17 00:00:00 2001 From: Bartosz Nitka Date: Sun, 2 Jul 2017 11:12:01 +0100 Subject: Fix haddock: internal error: links: UnhelpfulSpan (#561) * Fix haddock: internal error: links: UnhelpfulSpan This fixes #554 for me. I believe this is another fall out of `wildcard-refactor`, like #549. * Comment to clarify why we take the methods name location --- haddock-api/src/Haddock/Backends/Xhtml/Decl.hs | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'haddock-api/src/Haddock/Backends/Xhtml') diff --git a/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs b/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs index 716050fa..cda0611a 100644 --- a/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs +++ b/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs @@ -635,8 +635,10 @@ ppInstanceSigs :: LinksInfo -> Splice -> Unicode -> Qualification ppInstanceSigs links splice unicode qual sigs = do TypeSig lnames typ <- sigs let names = map unLoc lnames - L loc rtyp = hsSigWcType typ - return $ ppSimpleSig links splice unicode qual loc names rtyp + L _ rtyp = hsSigWcType typ + -- Instance methods signatures are synified and thus don't have a useful + -- SrcSpan value. Use the methods name location instead. + return $ ppSimpleSig links splice unicode qual (getLoc $ head $ lnames) names rtyp lookupAnySubdoc :: Eq id1 => id1 -> [(id1, DocForDecl id2)] -> DocForDecl id2 -- cgit v1.2.3