-dsExpr (SectionL expr op)
- = dsLExpr op `thenDs` \ core_op ->
- -- for the type of y, we need the type of op's 2nd argument
- let
- (x_ty:y_ty:_, _) = splitFunTys (exprType core_op)
- -- Must look through an implicit-parameter type;
- -- newtype impossible; hence Type.splitFunTys
- in
- dsLExpr expr `thenDs` \ x_core ->
- newSysLocalDs x_ty `thenDs` \ x_id ->
- newSysLocalDs y_ty `thenDs` \ y_id ->
-
- returnDs (bindNonRec x_id x_core $
- Lam y_id (mkApps core_op [Var x_id, Var y_id]))
+dsExpr (SectionL expr op) -- Desugar (e !) to ((!) e)
+ = dsLExpr op `thenDs` \ core_op ->
+ dsLExpr expr `thenDs` \ x_core ->
+ returnDs (App core_op x_core)