1 files changed, 4 insertions, 1 deletions
diff --git a/tvix/eval/src/vm.rs b/tvix/eval/src/vm.rs
index f6605940a38c..b5f948a96a55 100644
--- a/tvix/eval/src/vm.rs
+++ b/tvix/eval/src/vm.rs
@@ -2,7 +2,7 @@
 //! Tvix bytecode.
 
 use serde_json::json;
-use std::{cmp::Ordering, ops::DerefMut, path::PathBuf, rc::Rc};
+use std::{cmp::Ordering, collections::BTreeMap, ops::DerefMut, path::PathBuf, rc::Rc};
 
 use crate::{
     chunk::Chunk,
@@ -60,6 +60,8 @@ pub struct VM<'o> {
     /// Runtime warnings collected during evaluation.
     warnings: Vec<EvalWarning>,
 
+    pub import_cache: Box<BTreeMap<PathBuf, Value>>,
+
     nix_search_path: NixSearchPath,
 
     observer: &'o mut dyn RuntimeObserver,
@@ -164,6 +166,7 @@ impl<'o> VM<'o> {
             stack: vec![],
             with_stack: vec![],
             warnings: vec![],
+            import_cache: Default::default(),
         }
     }