refactor(tvix/eval): keep globals alive through VM struct r/5715

This forces users to pass the fully constructed set of globals to the
VM, making it harder to accidentally "lose" the set while weak
references to it still exist.

This doesn't modify any functionality, but is laying the foundation
for simplifying some of the builtins behaviour that has grown more
complex again.

Change-Id: I5120f97861c65dc46d90b8a4e2c92ad32cc53e03
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7877
Autosubmit: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>

2 files changed, 42 insertions, 7 deletions

diff --git a/tvix/eval/src/value/attrs/tests.rs b/tvix/eval/src/value/attrs/tests.rs
index 2039c509fd..ccf8dc7c10 100644
--- a/tvix/eval/src/value/attrs/tests.rs
+++ b/tvix/eval/src/value/attrs/tests.rs
@@ -10,7 +10,12 @@ mod nix_eq {
     #[proptest(ProptestConfig { cases: 2, ..Default::default() })]
     fn reflexive(x: NixAttrs) {
         let mut observer = NoOpObserver {};
-        let mut vm = VM::new(Default::default(), Box::new(crate::DummyIO), &mut observer);
+        let mut vm = VM::new(
+            Default::default(),
+            Box::new(crate::DummyIO),
+            &mut observer,
+            Default::default(),
+        );
 
         assert!(x.nix_eq(&x, &mut vm).unwrap())
     }
@@ -18,7 +23,12 @@ mod nix_eq {
     #[proptest(ProptestConfig { cases: 2, ..Default::default() })]
     fn symmetric(x: NixAttrs, y: NixAttrs) {
         let mut observer = NoOpObserver {};
-        let mut vm = VM::new(Default::default(), Box::new(crate::DummyIO), &mut observer);
+        let mut vm = VM::new(
+            Default::default(),
+            Box::new(crate::DummyIO),
+            &mut observer,
+            Default::default(),
+        );
 
         assert_eq!(
             x.nix_eq(&y, &mut vm).unwrap(),
@@ -29,7 +39,12 @@ mod nix_eq {
     #[proptest(ProptestConfig { cases: 2, ..Default::default() })]
     fn transitive(x: NixAttrs, y: NixAttrs, z: NixAttrs) {
         let mut observer = NoOpObserver {};
-        let mut vm = VM::new(Default::default(), Box::new(crate::DummyIO), &mut observer);
+        let mut vm = VM::new(
+            Default::default(),
+            Box::new(crate::DummyIO),
+            &mut observer,
+            Default::default(),
+        );
 
         if x.nix_eq(&y, &mut vm).unwrap() && y.nix_eq(&z, &mut vm).unwrap() {
             assert!(x.nix_eq(&z, &mut vm).unwrap())
diff --git a/tvix/eval/src/value/mod.rs b/tvix/eval/src/value/mod.rs
index 9ab23043c5..7a6bbcafb3 100644
--- a/tvix/eval/src/value/mod.rs
+++ b/tvix/eval/src/value/mod.rs
@@ -578,7 +578,12 @@ mod tests {
         #[proptest(ProptestConfig { cases: 5, ..Default::default() })]
         fn reflexive(x: Value) {
             let mut observer = NoOpObserver {};
-            let mut vm = VM::new(Default::default(), Box::new(crate::DummyIO), &mut observer);
+            let mut vm = VM::new(
+                Default::default(),
+                Box::new(crate::DummyIO),
+                &mut observer,
+                Default::default(),
+            );
 
             assert!(x.nix_eq(&x, &mut vm).unwrap())
         }
@@ -586,7 +591,12 @@ mod tests {
         #[proptest(ProptestConfig { cases: 5, ..Default::default() })]
         fn symmetric(x: Value, y: Value) {
             let mut observer = NoOpObserver {};
-            let mut vm = VM::new(Default::default(), Box::new(crate::DummyIO), &mut observer);
+            let mut vm = VM::new(
+                Default::default(),
+                Box::new(crate::DummyIO),
+                &mut observer,
+                Default::default(),
+            );
 
             assert_eq!(
                 x.nix_eq(&y, &mut vm).unwrap(),
@@ -597,7 +607,12 @@ mod tests {
         #[proptest(ProptestConfig { cases: 5, ..Default::default() })]
         fn transitive(x: Value, y: Value, z: Value) {
             let mut observer = NoOpObserver {};
-            let mut vm = VM::new(Default::default(), Box::new(crate::DummyIO), &mut observer);
+            let mut vm = VM::new(
+                Default::default(),
+                Box::new(crate::DummyIO),
+                &mut observer,
+                Default::default(),
+            );
 
             if x.nix_eq(&y, &mut vm).unwrap() && y.nix_eq(&z, &mut vm).unwrap() {
                 assert!(x.nix_eq(&z, &mut vm).unwrap())
@@ -607,7 +622,12 @@ mod tests {
         #[test]
         fn list_int_float_fungibility() {
             let mut observer = NoOpObserver {};
-            let mut vm = VM::new(Default::default(), Box::new(crate::DummyIO), &mut observer);
+            let mut vm = VM::new(
+                Default::default(),
+                Box::new(crate::DummyIO),
+                &mut observer,
+                Default::default(),
+            );
 
             let v1 = Value::List(NixList::from(vector![Value::Integer(1)]));
             let v2 = Value::List(NixList::from(vector![Value::Float(1.0)]));