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-rw-r--r--src/optimizer/factorizer.rs1
1 files changed, 0 insertions, 1 deletions
diff --git a/src/optimizer/factorizer.rs b/src/optimizer/factorizer.rs
index cff018b..e6fd8ff 100644
--- a/src/optimizer/factorizer.rs
+++ b/src/optimizer/factorizer.rs
@@ -15,7 +15,6 @@ pub fn factor(rule: Rule) -> Rule {
name,
ty,
expr: expr.map_top_down(|expr| {
- // TODO: Use box syntax when it gets stabilized.
match expr {
Expr::Choice(lhs, rhs) => match (*lhs, *rhs) {
(Expr::Seq(l1, r1), Expr::Seq(l2, r2)) => {