diff --git a/editor/src/lang/mod.rs b/editor/src/lang/mod.rs
index 61dadbcbd5..a2de563db0 100644
--- a/editor/src/lang/mod.rs
+++ b/editor/src/lang/mod.rs
@@ -1,9 +1,9 @@
 pub mod ast;
 mod def;
-mod expr;
+pub mod expr;
 mod module;
 mod pattern;
 pub mod pool;
 pub mod roc_file;
-mod scope;
+pub mod scope;
 mod types;
diff --git a/editor/src/lib.rs b/editor/src/lib.rs
index 1ef6f18eab..4bddda7a60 100644
--- a/editor/src/lib.rs
+++ b/editor/src/lib.rs
@@ -31,7 +31,12 @@ use crate::vec_result::get_res;
 use bumpalo::Bump;
 use cgmath::Vector2;
 use ed_model::Position;
+use lang::{ast::Expr2, pool::Pool, scope::Scope};
 use pipelines::RectResources;
+use roc_collections::all::MutMap;
+use roc_module::symbol::{IdentIds, ModuleId, ModuleIds};
+use roc_region::all::Region;
+use roc_types::subs::VarStore;
 use std::error::Error;
 use std::io;
 use std::path::Path;
@@ -266,7 +271,33 @@ fn run_event_loop(file_path_opt: Option<&Path>) -> Result<(), Box<dyn Error>> {
                     );
                 } else {
                     queue_no_file_text(&size, NOTHING_OPENED, CODE_TXT_XY.into(), &mut glyph_brush);
-                    let ast = crate::lang::expr::str_to_expr2();
+
+                    let mut pool = Pool::with_capacity(12);
+                    let mut var_store = VarStore::default();
+                    let dep_idents = MutMap::default();
+                    let mut module_ids = ModuleIds::default();
+                    let exposed_ident_ids = IdentIds::default();
+
+                    let home = module_ids.get_or_insert(&"Home".into());
+
+                    let mut env = crate::lang::expr::Env::new(
+                        home,
+                        &arena,
+                        &mut pool,
+                        &mut var_store,
+                        dep_idents,
+                        &module_ids,
+                        exposed_ident_ids,
+                    );
+
+                    let mut scope = Scope::new(home, env.pool, env.var_store);
+
+                    let region = Region::new(0, 0, 0, 0);
+
+                    let (ast, _) =
+                        crate::lang::expr::str_to_expr2(&arena, "1", &mut env, &mut scope, region)
+                            .unwrap();
+
                     render_node(&size, ast, CODE_TXT_XY.into(), &mut glyph_brush);
                 }
 
@@ -388,14 +419,14 @@ fn render_node(
                 position,
                 area_bounds,
                 color: CODE_COLOR.into(),
-                text: number.into(),
+                text: String::from("1"),
                 size: CODE_FONT_SIZE,
                 ..Default::default()
             };
 
             queue_code_text_draw(&code_text, glyph_brush);
         }
-        _ => 
+        rest => panic!("implement {:?} render", rest)
     };
 }