pub struct Exception { /* private fields */ }
Expand description
Ruby Exception
error type.
Descendants of class Exception
are used to communicate between
Kernel#raise
and rescue
statements in begin ... end
blocks.
Exception objects carry information about the exception – its type (the
exception’s class name), an optional descriptive string, and optional
traceback information. Exception
subclasses may add additional information
like NameError#name
.
Implementations§
source§impl Exception
impl Exception
sourcepub const fn new() -> Self
pub const fn new() -> Self
Construct a new, default Exception
Ruby exception.
This constructor sets the exception message to Exception
.
§Examples
let exception = Exception::new();
assert_eq!(exception.message(), b"Exception");
sourcepub const fn with_message(message: &'static str) -> Self
pub const fn with_message(message: &'static str) -> Self
Construct a new, Exception
Ruby exception with the given
message.
§Examples
let exception = Exception::with_message("an error occurred");
assert_eq!(exception.message(), b"an error occurred");
sourcepub fn message(&self) -> &[u8] ⓘ
pub fn message(&self) -> &[u8] ⓘ
Return the message this Ruby exception was constructed with.
§Examples
let exception = Exception::new();
assert_eq!(exception.message(), b"Exception");
let exception = Exception::from("something went wrong");
assert_eq!(exception.message(), b"something went wrong");
Trait Implementations§
source§impl Error for Exception
impl Error for Exception
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()
source§impl Ord for Exception
impl Ord for Exception
source§impl PartialOrd for Exception
impl PartialOrd for Exception
source§impl RubyException for Exception
impl RubyException for Exception
impl Eq for Exception
impl StructuralPartialEq for Exception
Auto Trait Implementations§
impl Freeze for Exception
impl RefUnwindSafe for Exception
impl Send for Exception
impl Sync for Exception
impl Unpin for Exception
impl UnwindSafe for Exception
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit
)