diff options
Diffstat (limited to 'src/HaddockUtil.hs')
| -rw-r--r-- | src/HaddockUtil.hs | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/HaddockUtil.hs b/src/HaddockUtil.hs index 878abeb7..61c40373 100644 --- a/src/HaddockUtil.hs +++ b/src/HaddockUtil.hs @@ -130,8 +130,10 @@ restrictTo :: [HsName] -> HsDecl -> HsDecl restrictTo names decl = case decl of HsDataDecl loc ctxt n xs cons drv doc -> HsDataDecl loc ctxt n xs (restrictCons names cons) drv doc - HsNewTypeDecl loc ctxt n xs con drv doc -> - HsDataDecl loc ctxt n xs (restrictCons names [con]) drv doc + decl@(HsNewTypeDecl loc ctxt n xs con drv doc) -> + case restrictCons names [con] of + [] -> HsDataDecl loc ctxt n xs [] drv doc + _ -> decl HsClassDecl loc ctxt n tys fds decls doc -> HsClassDecl loc ctxt n tys fds (restrictDecls names decls) doc _ -> decl |