From 31ad011daf24ed4bd32a1ea349042596b22b956a Mon Sep 17 00:00:00 2001
From: arty <art.yerkes@gmail.com>
Date: Thu, 14 Sep 2023 11:29:04 -0700
Subject: [PATCH] Fix rename error which caused clvm ops and callables to be
 renamed

---
 src/compiler/rename.rs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/compiler/rename.rs b/src/compiler/rename.rs
index 833706754..ca47292e5 100644
--- a/src/compiler/rename.rs
+++ b/src/compiler/rename.rs
@@ -234,12 +234,18 @@ fn rename_in_bodyform(
         },
 
         BodyForm::Call(l, vs, tail) => {
-            let new_vs = map_m(
+            let mut new_vs = map_m(
                 &|x: &Rc<BodyForm>| -> Result<Rc<BodyForm>, CompileErr> {
                     Ok(Rc::new(rename_in_bodyform(namemap, x.clone())?))
                 },
                 vs,
             )?;
+            // Ensure that we haven't renamed the 0th element of a call
+            // They exist in a separate (global) namespace of callables
+            // and aren't in the variable scope stack.
+            if !vs.is_empty() {
+                new_vs[0] = vs[0].clone();
+            }
             let new_tail = if let Some(t) = tail.as_ref() {
                 Some(Rc::new(rename_in_bodyform(namemap, t.clone())?))
             } else {