From 0a2f06f5985568170aeb36c0475b79df5bac80c1 Mon Sep 17 00:00:00 2001
From: Greg Shuflin <greg.shuflin@protonmail.com>
Date: Mon, 25 Oct 2021 19:34:05 -0700
Subject: [PATCH] Introduce notion of RuntimeValue

---
 schala-lang/language/src/tree_walk_eval/mod.rs | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/schala-lang/language/src/tree_walk_eval/mod.rs b/schala-lang/language/src/tree_walk_eval/mod.rs
index d0f376a..cb8c899 100644
--- a/schala-lang/language/src/tree_walk_eval/mod.rs
+++ b/schala-lang/language/src/tree_walk_eval/mod.rs
@@ -127,6 +127,24 @@ impl MemoryValue {
     }
 }
 
+#[derive(Debug)]
+enum RuntimeValue {
+    Expression(Expression),
+    Evaluated(Primitive),
+}
+
+impl From<Expression> for RuntimeValue {
+    fn from(expr: Expression) -> Self {
+        Self::Expression(expr)
+    }
+}
+
+impl From<Primitive> for RuntimeValue {
+    fn from(prim: Primitive) -> Self {
+        Self::Evaluated(prim)
+    }
+}
+
 /// A fully-reduced value
 #[derive(Debug, Clone)]
 enum Primitive {