remove `description` from `Error` impls in docs

diff --git a/src/libstd/error.rs b/src/libstd/error.rs
index d4c4cb9c3b997f40773c76af7ec5f971fe200fdf..f62c05c4441150985f3195fa90225cb7ecdee359 100644 (file)
--- a/src/libstd/error.rs
+++ b/src/libstd/error.rs
@@ -91,10 +91,6 @@ fn description(&self) -> &str {
     /// }
     ///
     /// impl Error for SuperError {
-    ///     fn description(&self) -> &str {
-    ///         "I'm the superhero of errors"
-    ///     }
-    ///
     ///     fn cause(&self) -> Option<&dyn Error> {
     ///         Some(&self.side)
     ///     }
@@ -109,11 +105,7 @@ fn description(&self) -> &str {
     ///     }
     /// }
     ///
-    /// impl Error for SuperErrorSideKick {
-    ///     fn description(&self) -> &str {
-    ///         "I'm SuperError side kick"
-    ///     }
-    /// }
+    /// impl Error for SuperErrorSideKick {}
     ///
     /// fn get_super_error() -> Result<(), SuperError> {
     ///     Err(SuperError { side: SuperErrorSideKick })
@@ -156,10 +148,6 @@ fn cause(&self) -> Option<&dyn Error> {
     /// }
     ///
     /// impl Error for SuperError {
-    ///     fn description(&self) -> &str {
-    ///         "I'm the superhero of errors"
-    ///     }
-    ///
     ///     fn source(&self) -> Option<&(dyn Error + 'static)> {
     ///         Some(&self.side)
     ///     }
@@ -174,11 +162,7 @@ fn cause(&self) -> Option<&dyn Error> {
     ///     }
     /// }
     ///
-    /// impl Error for SuperErrorSideKick {
-    ///     fn description(&self) -> &str {
-    ///         "I'm SuperError side kick"
-    ///     }
-    /// }
+    /// impl Error for SuperErrorSideKick {}
     ///
     /// fn get_super_error() -> Result<(), SuperError> {
     ///     Err(SuperError { side: SuperErrorSideKick })
@@ -251,11 +235,7 @@ impl<'a, E: Error + 'a> From<E> for Box<dyn Error + 'a> {
     ///     }
     /// }
     ///
-    /// impl Error for AnError {
-    ///     fn description(&self) -> &str {
-    ///         "Description of an error"
-    ///     }
-    /// }
+    /// impl Error for AnError {}
     ///
     /// let an_error = AnError;
     /// assert!(0 == mem::size_of_val(&an_error));
@@ -290,11 +270,7 @@ impl<'a, E: Error + Send + Sync + 'a> From<E> for Box<dyn Error + Send + Sync +
     ///     }
     /// }
     ///
-    /// impl Error for AnError {
-    ///     fn description(&self) -> &str {
-    ///         "Description of an error"
-    ///     }
-    /// }
+    /// impl Error for AnError {}
     ///
     /// unsafe impl Send for AnError {}
     ///

diff --git a/src/libstd/io/error.rs b/src/libstd/io/error.rs
index c20bd3097b27dea93720d637d91db3a814ac85e1..efe839d1302fe4b6f6955e4b079a8a284d3450c8 100644 (file)
--- a/src/libstd/io/error.rs
+++ b/src/libstd/io/error.rs
@@ -402,9 +402,7 @@ pub fn get_ref(&self) -> Option<&(dyn error::Error + Send + Sync + 'static)> {
     ///     }
     /// }
     ///
-    /// impl error::Error for MyError {
-    ///     fn description(&self) -> &str { &self.v }
-    /// }
+    /// impl error::Error for MyError {}
     ///
     /// impl Display for MyError {
     ///     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {