Rollup merge of #36995 - nrc:stable, r=@nikomatsakis

stabilise ?, attributes on stmts, deprecate Reflect

r? @nikomatsakis

5 files changed, 7 insertions, 12 deletions

diff --git a/src/libstd/error.rs b/src/libstd/error.rs
index f1f62bc24c5..398bb55ea1b 100644
--- a/src/libstd/error.rs
+++ b/src/libstd/error.rs
@@ -55,7 +55,6 @@ use any::TypeId;
 use cell;
 use char;
 use fmt::{self, Debug, Display};
-use marker::Reflect;
 use mem::transmute;
 use num;
 use str;
@@ -63,7 +62,7 @@ use string;
 
 /// Base functionality for all errors in Rust.
 #[stable(feature = "rust1", since = "1.0.0")]
-pub trait Error: Debug + Display + Reflect {
+pub trait Error: Debug + Display {
     /// A short description of the error.
     ///
     /// The description should not contain newlines or sentence-ending
diff --git a/src/libstd/io/buffered.rs b/src/libstd/io/buffered.rs
index 93b2d34e27f..39b64e72393 100644
--- a/src/libstd/io/buffered.rs
+++ b/src/libstd/io/buffered.rs
@@ -12,7 +12,6 @@
 
 use io::prelude::*;
 
-use marker::Reflect;
 use cmp;
 use error;
 use fmt;
@@ -578,7 +577,7 @@ impl<W> From<IntoInnerError<W>> for Error {
 }
 
 #[stable(feature = "rust1", since = "1.0.0")]
-impl<W: Reflect + Send + fmt::Debug> error::Error for IntoInnerError<W> {
+impl<W: Send + fmt::Debug> error::Error for IntoInnerError<W> {
     fn description(&self) -> &str {
         error::Error::description(self.error())
     }
diff --git a/src/libstd/lib.rs b/src/libstd/lib.rs
index eee85798841..c2f6a6f660c 100644
--- a/src/libstd/lib.rs
+++ b/src/libstd/lib.rs
@@ -255,10 +255,9 @@
 #![feature(panic_unwind)]
 #![feature(placement_in_syntax)]
 #![feature(prelude_import)]
-#![feature(question_mark)]
+#![cfg_attr(stage0, feature(question_mark))]
 #![feature(rand)]
 #![feature(raw)]
-#![feature(reflect_marker)]
 #![feature(repr_simd)]
 #![feature(rustc_attrs)]
 #![feature(shared)]
diff --git a/src/libstd/sync/mpsc/mod.rs b/src/libstd/sync/mpsc/mod.rs
index 6d37f160590..fce640e7c7a 100644
--- a/src/libstd/sync/mpsc/mod.rs
+++ b/src/libstd/sync/mpsc/mod.rs
@@ -270,7 +270,6 @@ use error;
 use fmt;
 use mem;
 use cell::UnsafeCell;
-use marker::Reflect;
 use time::{Duration, Instant};
 
 #[unstable(feature = "mpsc_select", issue = "27800")]
@@ -1163,7 +1162,7 @@ impl<T> fmt::Display for SendError<T> {
 }
 
 #[stable(feature = "rust1", since = "1.0.0")]
-impl<T: Send + Reflect> error::Error for SendError<T> {
+impl<T: Send> error::Error for SendError<T> {
     fn description(&self) -> &str {
         "sending on a closed channel"
     }
@@ -1198,7 +1197,7 @@ impl<T> fmt::Display for TrySendError<T> {
 }
 
 #[stable(feature = "rust1", since = "1.0.0")]
-impl<T: Send + Reflect> error::Error for TrySendError<T> {
+impl<T: Send> error::Error for TrySendError<T> {
 
     fn description(&self) -> &str {
         match *self {
diff --git a/src/libstd/sys/common/poison.rs b/src/libstd/sys/common/poison.rs
index 55212bf35d6..bdc727f1dfc 100644
--- a/src/libstd/sys/common/poison.rs
+++ b/src/libstd/sys/common/poison.rs
@@ -10,7 +10,6 @@
 
 use error::{Error};
 use fmt;
-use marker::Reflect;
 use sync::atomic::{AtomicBool, Ordering};
 use thread;
 
@@ -117,7 +116,7 @@ impl<T> fmt::Display for PoisonError<T> {
 }
 
 #[stable(feature = "rust1", since = "1.0.0")]
-impl<T: Reflect> Error for PoisonError<T> {
+impl<T> Error for PoisonError<T> {
     fn description(&self) -> &str {
         "poisoned lock: another task failed inside"
     }
@@ -174,7 +173,7 @@ impl<T> fmt::Display for TryLockError<T> {
 }
 
 #[stable(feature = "rust1", since = "1.0.0")]
-impl<T: Reflect> Error for TryLockError<T> {
+impl<T> Error for TryLockError<T> {
     fn description(&self) -> &str {
         match *self {
             TryLockError::Poisoned(ref p) => p.description(),