Starting visitor again

schala-lang/language/src/lib.rs

@@ -34,6 +34,7 @@ mod symbol_table;
 mod builtin;
 mod reduced_ast;
 mod eval;
+mod visitor;
 
 mod schala;
 

schala-lang/language/src/visitor.rs

@@ -0,0 +1,7 @@
+use std::error::Error;
+
+pub type VResult<T> = Result<T, Box<dyn Error>>;
+
+pub trait Visitor {
+
+}