use new error kinds; track Environment nesting with stack

1 files changed, 2 insertions, 1 deletions

diff --git a/src/lisp/mod.rs b/src/lisp/mod.rs
index a52baa0..87a2720 100644
--- a/src/lisp/mod.rs
+++ b/src/lisp/mod.rs
@@ -4,10 +4,11 @@ pub mod expr;
 pub mod lex;
 pub mod number;
 pub mod parse;
-mod primitives;
+pub mod prelude;
 
 use std::collections::HashMap;
 
 use expr::LispExpr;
 
 pub type Environment = HashMap<String, LispExpr>;
+pub type EnvList = Vec<Environment>;