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-rw-r--r--src/AST/Env.hs10
1 files changed, 10 insertions, 0 deletions
diff --git a/src/AST/Env.hs b/src/AST/Env.hs
index 422f0f7..85faba3 100644
--- a/src/AST/Env.hs
+++ b/src/AST/Env.hs
@@ -64,6 +64,16 @@ subenvConcat sub1 SETop = sub1
subenvConcat sub1 (SEYes s sub2) = SEYes s (subenvConcat sub1 sub2)
subenvConcat sub1 (SENo sub2) = SENo (subenvConcat sub1 sub2)
+-- subenvSplit :: SList f env1a -> Subenv' s (Append env1a env1b) env2
+-- -> (forall env2a env2b. Subenv' s env1a env2a -> Subenv' s env1b env2b -> r) -> r
+-- subenvSplit SNil sub k = k SETop sub
+-- subenvSplit (SCons _ list) (SENo sub) k =
+-- subenvSplit list sub $ \sub1 sub2 ->
+-- k (SENo sub1) sub2
+-- subenvSplit (SCons _ list) (SEYes s sub) k =
+-- subenvSplit list sub $ \sub1 sub2 ->
+-- k (SEYes s sub1) sub2
+
sinkWithSubenv :: Subenv' s env env' -> env0 :> Append env' env0
sinkWithSubenv SETop = WId
sinkWithSubenv (SEYes _ sub) = WSink .> sinkWithSubenv sub