Adding #[derive(Debug)] to entity handles when debug_assertions is en…

…abled

src/entity.rs

@@ -30,6 +30,7 @@ pub(crate) const ARCHETYPE_ID_BITS: u32 = ArchetypeId::BITS;
 /// enable the `wrapping_version` crate feature instead. Note that this could
 /// allow invalid entity access, but doing so will not access invalid memory,
 /// and the chances of this happening are infinitesimally small.
+#[cfg_attr(debug_assertions, derive(Debug))]
 pub struct Entity<A: Archetype> {
     inner: EntityAny,
     _type: PhantomData<fn() -> A>,
@@ -52,6 +53,7 @@ pub struct Entity<A: Archetype> {
 /// `wrapping_version` crate feature instead. Note that this could allow
 /// invalid entity access, but doing so will not access invalid memory, and
 /// the chances of this happening are infinitesimally small.
+#[cfg_attr(debug_assertions, derive(Debug))]
 pub struct EntityRaw<A: Archetype> {
     inner: EntityRawAny,
     _type: PhantomData<fn() -> A>,
@@ -64,6 +66,7 @@ pub struct EntityRaw<A: Archetype> {
 /// generated by the `ecs_world!` declaration to convert the `EntityAny` into
 /// an enum with each possible archetype outcome.
 #[derive(Clone, Copy, Eq, PartialEq)]
+#[cfg_attr(debug_assertions, derive(Debug))]
 pub struct EntityAny {
     key: u32, // [ slot_index (u24) | archetype_id (u8) ]
     version: SlotVersion,
@@ -76,6 +79,7 @@ pub struct EntityAny {
 /// generated by the `ecs_world!` declaration to convert the `EntityRawAny` into
 /// an enum with each possible archetype outcome.
 #[derive(Clone, Copy, Eq, PartialEq)]
+#[cfg_attr(debug_assertions, derive(Debug))]
 pub struct EntityRawAny {
     key: u32, // [ dense_index (u24) | archetype_id (u8) ]
     version: ArchetypeVersion,

src/version.rs

@@ -5,12 +5,14 @@ const VERSION_START: NonZeroU32 = NonZeroU32::MIN;
 
 #[repr(transparent)]
 #[derive(Clone, Copy, Eq, PartialEq)]
+#[cfg_attr(debug_assertions, derive(Debug))]
 pub struct SlotVersion {
     version: NonZeroU32,
 }
 
 #[repr(transparent)]
 #[derive(Clone, Copy, Eq, PartialEq)]
+#[cfg_attr(debug_assertions, derive(Debug))]
 pub struct ArchetypeVersion {
     version: NonZeroU32,
 }