Add a few trait impls for AccessError

Stjepan Glavina · Stjepan Glavina · commit d6c3196d02c8 · 2019-06-20T09:30:45.000+02:00
diff --git a/src/libstd/thread/local.rs b/src/libstd/thread/local.rs
@@ -2,6 +2,7 @@
 
 #![unstable(feature = "thread_local_internals", issue = "0")]
 
+use crate::error::Error;
 use crate::fmt;
 
 /// A thread local storage key which owns its contents.
@@ -189,6 +190,7 @@ macro_rules! __thread_local_inner {
 
 /// An error returned by [`LocalKey::try_with`](struct.LocalKey.html#method.try_with).
 #[stable(feature = "thread_local_try_with", since = "1.26.0")]
+#[derive(Clone, Copy, Eq, PartialEq)]
 pub struct AccessError {
     _private: (),
 }
@@ -207,6 +209,8 @@ impl fmt::Display for AccessError {
     }
 }
 
+impl Error for AccessError {}
+
 impl<T: 'static> LocalKey<T> {
     #[doc(hidden)]
     #[unstable(feature = "thread_local_internals",

Original file line number	Diff line number	Diff line change
`@@ -2,6 +2,7 @@`
`2`	`2`
`3`	`3`	`#![unstable(feature = "thread_local_internals", issue = "0")]`
`4`	`4`
	`5`	`+use crate::error::Error;`
`5`	`6`	`use crate::fmt;`
`6`	`7`
`7`	`8`	`/// A thread local storage key which owns its contents.`
`@@ -189,6 +190,7 @@ macro_rules! __thread_local_inner {`
`189`	`190`
`190`	`191`	/// An error returned by [`LocalKey::try_with`](struct.LocalKey.html#method.try_with).
`191`	`192`	`#[stable(feature = "thread_local_try_with", since = "1.26.0")]`
	`193`	`+#[derive(Clone, Copy, Eq, PartialEq)]`
`192`	`194`	`pub struct AccessError {`
`193`	`195`	`_private: (),`
`194`	`196`	`}`
`@@ -207,6 +209,8 @@ impl fmt::Display for AccessError {`
`207`	`209`	`}`
`208`	`210`	`}`
`209`	`211`
	`212`	`+impl Error for AccessError {}`
	`213`	`+`
`210`	`214`	`impl<T: 'static> LocalKey<T> {`
`211`	`215`	`#[doc(hidden)]`
`212`	`216`	`#[unstable(feature = "thread_local_internals",`