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Implement Debug for arena and handle

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Dzmitry Malyshau 2021-02-19 23:15:12 -05:00 committed by Dzmitry Malyshau
parent 26e6c2bdac
commit f03a99d6a3
1 changed files with 6 additions and 2 deletions
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8
src/arena.rs
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@ -45,7 +45,7 @@ impl<T> Ord for Handle<T> {
}
impl<T> fmt::Debug for Handle<T> {
fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
write!(formatter, "Handle({})", self.index)
write!(formatter, "[{}]", self.index)
}
}
impl<T> hash::Hash for Handle<T> {
@ -81,7 +81,6 @@ impl<T> Handle<T> {
/// Adding new items to the arena produces a strongly-typed [`Handle`].
/// The arena can be indexed using the given handle to obtain
/// a reference to the stored item.
#[derive(Debug)]
#[cfg_attr(feature = "serialize", derive(serde::Serialize))]
#[cfg_attr(feature = "deserialize", derive(serde::Deserialize))]
#[cfg_attr(
@ -99,6 +98,11 @@ impl<T> Default for Arena<T> {
Self::new()
}
}
impl<T: fmt::Debug> fmt::Debug for Arena<T> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.debug_map().entries(self.iter()).finish()
}
}
impl<T> Arena<T> {
/// Create a new arena with no initial capacity allocated.