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Implement Debug for Res and ResMut (#2050)

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This commit adds blanket implementations of Debug for Res and ResMut, as discussed in https://github.com/bevyengine/bevy/issues/2048.
This commit is contained in:
forbjok 2021-05-01 02:32:32 +00:00
parent c9b33e15f8
commit 1e0c950004
1 changed files with 38 additions and 1 deletions
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39
crates/bevy_ecs/src/system/system_param.rs
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@ -10,6 +10,7 @@ use crate::{
pub use bevy_ecs_macros::SystemParam;
use bevy_ecs_macros::{all_tuples, impl_query_set};
use std::{
fmt::Debug,
marker::PhantomData,
ops::{Deref, DerefMut},
};
@ -174,6 +175,15 @@ pub struct Res<'w, T: Component> {
change_tick: u32,
}
impl<'w, T: Component> Debug for Res<'w, T>
where
T: Debug,
{
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
f.debug_tuple("Res").field(&self.value).finish()
}
}
impl<'w, T: Component> Res<'w, T> {
/// Returns true if (and only if) this resource been added since the last execution of this
/// system.
@ -318,6 +328,15 @@ pub struct ResMut<'w, T: Component> {
change_tick: u32,
}
impl<'w, T: Component> Debug for ResMut<'w, T>
where
T: Debug,
{
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
f.debug_tuple("ResMut").field(&self.value).finish()
}
}
impl<'w, T: Component> ResMut<'w, T> {
/// Returns true if (and only if) this resource been added since the last execution of this
/// system.
@ -520,6 +539,15 @@ impl<'a> SystemParamFetch<'a> for CommandQueue {
/// ```
pub struct Local<'a, T: Component>(&'a mut T);
impl<'a, T: Component> Debug for Local<'a, T>
where
T: Debug,
{
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
f.debug_tuple("Local").field(&self.0).finish()
}
}
impl<'a, T: Component> Deref for Local<'a, T> {
type Target = T;
@ -661,6 +689,15 @@ pub struct NonSend<'w, T> {
change_tick: u32,
}
impl<'w, T> Debug for NonSend<'w, T>
where
T: Debug,
{
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
f.debug_tuple("NonSend").field(&self.value).finish()
}
}
impl<'w, T: Component> NonSend<'w, T> {
/// Returns true if (and only if) this resource been added since the last execution of this
/// system.
@ -807,7 +844,7 @@ impl<'a, T: 'static> DerefMut for NonSendMut<'a, T> {
impl<'a, T: 'static + core::fmt::Debug> core::fmt::Debug for NonSendMut<'a, T> {
fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
self.value.fmt(f)
f.debug_tuple("NonSendMut").field(&self.value).finish()
}
}