feat(plugin-api): add display impl for uuid (#2497)

pumpkin-plugin-api/src/ext/mod.rs

@@ -0,0 +1,3 @@
+//! WIT-generated plugin type extensions belong in here. For example [Display](std::fmt::Display) implementations.
+
+mod uuid;

pumpkin-plugin-api/src/ext/uuid.rs

@@ -0,0 +1,32 @@
+use std::fmt;
+
+use crate::wit::pumpkin::plugin::uuid::Uuid;
+
+impl fmt::Display for Uuid {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(
+            f,
+            "{:08x}-{:04x}-{:04x}-{:04x}-{:012x}",
+            (self.high >> 32) as u32,
+            ((self.high >> 16) & 0xffff) as u16,
+            (self.high & 0xffff) as u16,
+            (self.low >> 48) as u16,
+            self.low & 0x0000_ffff_ffff_ffff,
+        )
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn formats_uuid_correctly() {
+        let uuid = Uuid {
+            high: 0x0011223344556677,
+            low: 0x8899aabbccddeeff,
+        };
+
+        assert_eq!(uuid.to_string(), "00112233-4455-6677-8899-aabbccddeeff");
+    }
+}

pumpkin-plugin-api/src/lib.rs

@@ -35,6 +35,7 @@ use crate::{
 
 pub mod commands;
 pub mod events;
+mod ext;
 pub mod forms;
 /// Constants for plugin permissions.
 ///