pub trait Error: Debug {
// Provided method
fn source(&self) -> Option<&(dyn Error + 'static)> { ... }
}
Expand description
Generic Error type. Similar to std::error::Error
but supports no_std
. If the std
feature
is enabled, Error
will implement std::error::Error
. Automatically implements fmt::Display
by using the Debug
implementation ("{:?}"
).
Provided Methods§
Trait Implementations§
Source§impl Error for Box<dyn Error>
impl Error for Box<dyn Error>
1.30.0 · Source§fn source(&self) -> Option<&(dyn Error + 'static)>
fn source(&self) -> Option<&(dyn Error + 'static)>
Returns the lower-level source of this error, if any. Read more
1.0.0 · Source§fn description(&self) -> &str
fn description(&self) -> &str
👎Deprecated since 1.42.0: use the Display impl or to_string()