From 842cf1e82965ba80ae1e069254499dab4cd0b4be Mon Sep 17 00:00:00 2001
From: Colin Rofls <colin@cmyr.net>
Date: Mon, 3 Mar 2025 16:59:12 -0500
Subject: [PATCH] Add custom Debug impl for Coord<Space>

Specifically so that we when we debug print these types we don't see a
bunch of mentions of PhantomData<fn() -> Space>, which is both an
implementation detail and totally uninformative.
---
 fontdrasil/src/coords.rs | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/fontdrasil/src/coords.rs b/fontdrasil/src/coords.rs
index a539ee2a..3cc01b31 100644
--- a/fontdrasil/src/coords.rs
+++ b/fontdrasil/src/coords.rs
@@ -56,7 +56,7 @@ pub struct UserSpace;
 pub struct NormalizedSpace;
 
 /// A coordinate in some coordinate space.
-#[derive(Serialize, Deserialize, Default, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
+#[derive(Serialize, Deserialize, Default, PartialEq, Eq, PartialOrd, Ord, Hash)]
 pub struct Coord<Space> {
     coord: OrderedFloat<f64>,
     // we want to be covariant but also Send + Sync. See
@@ -64,6 +64,15 @@ pub struct Coord<Space> {
     space: PhantomData<fn() -> Space>,
 }
 
+impl<Space: Debug + Default> Debug for Coord<Space> {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        f.debug_struct("Coord")
+            .field("coord", &self.coord)
+            .field("space", &Space::default())
+            .finish()
+    }
+}
+
 /// A coordinate in design space.
 pub type DesignCoord = Coord<DesignSpace>;
 /// A coordinate in user space