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support template-haskell 2.16, build with GHC 8.10

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This commit is contained in:
Simon Michael 2019-12-14 16:09:18 -08:00
parent 873bee0cfa
commit dd649bf238
1 changed files with 17 additions and 3 deletions
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20
yesod-core/src/Yesod/Routes/TH/RenderRoute.hs
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@ -84,7 +84,12 @@ mkRenderRouteClauses =
let cons y ys = InfixE (Just y) colon (Just ys)
let pieces' = foldr cons (VarE a) piecesSingle
let body = LamE [TupP [VarP a, VarP b]] (TupE [pieces', VarE b]) `AppE` (rr `AppE` VarE child)
let body = LamE [TupP [VarP a, VarP b]] (TupE
#if MIN_VERSION_template_haskell(2,16,0)
$ map Just
#endif
[pieces', VarE b]
) `AppE` (rr `AppE` VarE child)
return $ Clause [pat] (NormalB body) [FunD childRender childClauses]
@ -119,11 +124,20 @@ mkRenderRouteClauses =
let cons y ys = InfixE (Just y) colon (Just ys)
let pieces = foldr cons (VarE a) piecesSingle
return $ LamE [TupP [VarP a, VarP b]] (TupE [pieces, VarE b]) `AppE` (rr `AppE` VarE x)
return $ LamE [TupP [VarP a, VarP b]] (TupE
#if MIN_VERSION_template_haskell(2,16,0)
$ map Just
#endif
[pieces, VarE b]
) `AppE` (rr `AppE` VarE x)
_ -> do
colon <- [|(:)|]
let cons a b = InfixE (Just a) colon (Just b)
return $ TupE [foldr cons piecesMulti piecesSingle, ListE []]
return $ TupE
#if MIN_VERSION_template_haskell(2,16,0)
$ map Just
#endif
[foldr cons piecesMulti piecesSingle, ListE []]
return $ Clause [pat] (NormalB body) []