From cd0e4c32635cf648f70153f0a25974e687ccd197 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Linus=20F=C3=A4rnstrand?= <faern@faern.net>
Date: Sun, 13 Oct 2019 11:43:26 +0200
Subject: [PATCH 1/2] Implement Error::source on IntoStringError
IntoStringError only implemented Error::cause, which is
deprecated. This implemements Error::source instead.
Error::cause will still work as before, thanks to the default
implementation.
---
src/libstd/ffi/c_str.rs | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/libstd/ffi/c_str.rs b/src/libstd/ffi/c_str.rs
index d7f4cc5d1fdaa..483f2ba52eca6 100644
--- a/src/libstd/ffi/c_str.rs
+++ b/src/libstd/ffi/c_str.rs
@@ -919,7 +919,7 @@ impl Error for IntoStringError {
"C string contained non-utf8 bytes"
}
- fn cause(&self) -> Option<&dyn Error> {
+ fn source(&self) -> Option<&(dyn Error + 'static)> {
Some(&self.error)
}
}
From b8e7f761819da1e50171f79e6de95122eef816a0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Linus=20F=C3=A4rnstrand?= <faern@faern.net>
Date: Sun, 13 Oct 2019 12:26:45 +0200
Subject: [PATCH 2/2] Remove Error::cause impls equal to deafult impl
---
src/libstd/sync/mpsc/mod.rs | 20 --------------------
1 file changed, 20 deletions(-)
diff --git a/src/libstd/sync/mpsc/mod.rs b/src/libstd/sync/mpsc/mod.rs
index 69ecd201063b0..c2884a28f3ccd 100644
--- a/src/libstd/sync/mpsc/mod.rs
+++ b/src/libstd/sync/mpsc/mod.rs
@@ -1581,10 +1581,6 @@ impl<T: Send> error::Error for SendError<T> {
fn description(&self) -> &str {
"sending on a closed channel"
}
-
- fn cause(&self) -> Option<&dyn error::Error> {
- None
- }
}
#[stable(feature = "rust1", since = "1.0.0")]
@@ -1624,10 +1620,6 @@ impl<T: Send> error::Error for TrySendError<T> {
}
}
}
-
- fn cause(&self) -> Option<&dyn error::Error> {
- None
- }
}
#[stable(feature = "mpsc_error_conversions", since = "1.24.0")]
@@ -1652,10 +1644,6 @@ impl error::Error for RecvError {
fn description(&self) -> &str {
"receiving on a closed channel"
}
-
- fn cause(&self) -> Option<&dyn error::Error> {
- None
- }
}
#[stable(feature = "rust1", since = "1.0.0")]
@@ -1685,10 +1673,6 @@ impl error::Error for TryRecvError {
}
}
}
-
- fn cause(&self) -> Option<&dyn error::Error> {
- None
- }
}
#[stable(feature = "mpsc_error_conversions", since = "1.24.0")]
@@ -1726,10 +1710,6 @@ impl error::Error for RecvTimeoutError {
}
}
}
-
- fn cause(&self) -> Option<&dyn error::Error> {
- None
- }
}
#[stable(feature = "mpsc_error_conversions", since = "1.24.0")]