Additional instances of ExprType used by parsed commands

3 files changed, 37 insertions, 0 deletions

diff --git a/src/Script/Expr/Class.hs b/src/Script/Expr/Class.hs
index 005b6a8..810b0c8 100644
--- a/src/Script/Expr/Class.hs
+++ b/src/Script/Expr/Class.hs
@@ -79,3 +79,13 @@ instance ExprType a => ExprType [a] where
     textExprValue x = "[" <> T.intercalate ", " (map textExprValue x) <> "]"
 
     exprListUnpacker _ = Just $ ExprListUnpacker id (const Proxy)
+
+instance ExprType a => ExprType (Maybe a) where
+    textExprType _ = textExprType @a Proxy <> "?"
+    textExprValue (Just x) = textExprValue x
+    textExprValue Nothing = "Nothing"
+
+instance (ExprType a, ExprType b) => ExprType (Either a b) where
+    textExprType _ = textExprType @a Proxy <> "|" <> textExprType @b Proxy
+    textExprValue (Left x) = "Left " <> textExprValue x
+    textExprValue (Right x) = "Right " <> textExprValue x
diff --git a/src/Script/Shell.hs b/src/Script/Shell.hs
index 23c3891..cc8d06f 100644
--- a/src/Script/Shell.hs
+++ b/src/Script/Shell.hs
@@ -33,6 +33,7 @@ import Network.Ip
 import Output
 import Process
 import Run.Monad
+import Script.Expr.Class
 import Script.Var
 
 
@@ -54,6 +55,22 @@ data ShellCommand = ShellCommand
     , cmdSourceLine :: SourceLine
     }
 
+instance ExprType ShellScript where
+    textExprType _ = T.pack "ShellScript"
+    textExprValue _ = "<shell-script>"
+
+instance ExprType ShellStatement where
+    textExprType _ = T.pack "ShellStatement"
+    textExprValue _ = "<shell-statement>"
+
+instance ExprType ShellPipeline where
+    textExprType _ = T.pack "ShellPipeline"
+    textExprValue _ = "<shell-pipeline>"
+
+instance ExprType ShellCommand where
+    textExprType _ = T.pack "ShellCommand"
+    textExprValue _ = "<shell-command>"
+
 
 data ShellExecInfo = ShellExecInfo
     { seiNode :: Node
diff --git a/src/Script/Var.hs b/src/Script/Var.hs
index 668060c..2c50101 100644
--- a/src/Script/Var.hs
+++ b/src/Script/Var.hs
@@ -9,6 +9,8 @@ module Script.Var (
 import Data.Text (Text)
 import Data.Text qualified as T
 
+import Script.Expr.Class
+
 
 newtype VarName = VarName Text
     deriving (Eq, Ord)
@@ -40,6 +42,10 @@ unqualifyName (LocalVarName name) = name
 newtype TypedVarName a = TypedVarName { fromTypedVarName :: VarName }
     deriving (Eq, Ord)
 
+instance ExprType a => ExprType (TypedVarName a) where
+    textExprType _ = "TypedVarName"
+    textExprValue = textVarName . fromTypedVarName
+
 
 newtype ModuleName = ModuleName [ Text ]
     deriving (Eq, Ord, Show)
@@ -54,3 +60,7 @@ data SourceLine
 textSourceLine :: SourceLine -> Text
 textSourceLine (SourceLine text) = text
 textSourceLine SourceLineBuiltin = "<builtin>"
+
+instance ExprType SourceLine where
+    textExprType _ = "SourceLine"
+    textExprValue = textSourceLine