+ pp_nonnull xs = vcat (map ppr xs)
+
+hsModuleName (HsModule mod_name _ _ _ _ _ _) = mod_name
+hsModuleImports (HsModule mod_name vers exports imports decls deprec src_loc) = imports
+\end{code}
+
+
+%************************************************************************
+%* *
+\subsection{Collecting binders from @HsBinds@}
+%* *
+%************************************************************************
+
+Get all the binders in some @MonoBinds@, IN THE ORDER OF APPEARANCE.
+
+These functions are here, rather than in HsBinds, to avoid a loop between HsPat and HsBinds.
+
+\begin{verbatim}
+...
+where
+ (x, y) = ...
+ f i j = ...
+ [a, b] = ...
+\end{verbatim}
+it should return @[x, y, f, a, b]@ (remember, order important).
+
+\begin{code}
+collectLocatedHsBinders :: HsBinds name (InPat name) -> [(name,SrcLoc)]
+collectLocatedHsBinders EmptyBinds = []
+collectLocatedHsBinders (MonoBind b _ _)
+ = collectLocatedMonoBinders b
+collectLocatedHsBinders (ThenBinds b1 b2)
+ = collectLocatedHsBinders b1 ++ collectLocatedHsBinders b2
+
+collectHsBinders :: HsBinds name (InPat name) -> [name]
+collectHsBinders EmptyBinds = []
+collectHsBinders (MonoBind b _ _)
+ = collectMonoBinders b
+collectHsBinders (ThenBinds b1 b2)
+ = collectHsBinders b1 ++ collectHsBinders b2
+
+collectLocatedMonoBinders :: MonoBinds name (InPat name) -> [(name,SrcLoc)]
+collectLocatedMonoBinders binds
+ = go binds []
+ where
+ go EmptyMonoBinds acc = acc
+ go (PatMonoBind pat _ loc) acc = map (\v->(v,loc)) (collectPatBinders pat) ++ acc
+ go (FunMonoBind f _ _ loc) acc = (f,loc) : acc
+ go (AndMonoBinds bs1 bs2) acc = go bs1 (go bs2 acc)