From b3ff8dec49ee2e8cddd1718da3d8801bccbd9910 Mon Sep 17 00:00:00 2001
From: Eryn Wells <eryn@erynwells.me>
Date: Sat, 12 Jul 2025 17:09:55 -0700
Subject: [PATCH] [core] Make Shape::is_promotable() const

---
 core/src/shapes.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/src/shapes.rs b/core/src/shapes.rs
index 0cedc7c..9edbbb5 100644
--- a/core/src/shapes.rs
+++ b/core/src/shapes.rs
@@ -70,7 +70,7 @@ impl Shape {
     }
 
     #[must_use]
-    pub fn is_promotable(&self) -> bool {
+    pub const fn is_promotable(&self) -> bool {
         matches!(self, Self::Knight | Self::Bishop | Self::Rook | Self::Queen)
     }