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-rw-r--r--src/optimizer/lister.rs1
1 files changed, 0 insertions, 1 deletions
diff --git a/src/optimizer/lister.rs b/src/optimizer/lister.rs
index e198850..03c9902 100644
--- a/src/optimizer/lister.rs
+++ b/src/optimizer/lister.rs
@@ -15,7 +15,6 @@ pub fn list(rule: Rule) -> Rule {
name,
ty,
expr: expr.map_bottom_up(|expr| {
- // TODO: Use box syntax when it gets stabilized.
match expr {
Expr::Seq(l, r) => match *l {
Expr::Rep(l) => {