2 files changed, 9 insertions, 0 deletions
diff --git a/src/Language/SimpleShell/AST/Name.hs b/src/Language/SimpleShell/AST/Name.hs
index 69162db..3ca08f4 100644
--- a/src/Language/SimpleShell/AST/Name.hs
+++ b/src/Language/SimpleShell/AST/Name.hs
@@ -9,6 +9,9 @@ where
 import Data.Text (Text)
 
 
+-- TODO: Replace type aliases by proper types.
+
+
 type VarName = Text
 
 type FunName = Text
diff --git a/src/Language/SimpleShell/AST/SimpleType.hs b/src/Language/SimpleShell/AST/SimpleType.hs
index a919529..6c2f916 100644
--- a/src/Language/SimpleShell/AST/SimpleType.hs
+++ b/src/Language/SimpleShell/AST/SimpleType.hs
@@ -2,10 +2,14 @@ module Language.SimpleShell.AST.SimpleType
   ( SimpleType(..)
   , Typed
   , FunSig
+  , ProcedureSig
   )
 where
 
 
+-- TODO: Replace type aliases by proper types.
+
+
 data SimpleType
   = IntType
   | StrType
@@ -15,3 +19,5 @@ data SimpleType
 type Typed a = (SimpleType, a)
 
 type FunSig = (SimpleType, [SimpleType])
+
+type ProcedureSig = (SimpleType, [SimpleType])