pub struct StandardError { /* private fields */ }
Expand description
Ruby StandardError
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 StandardError
impl StandardError
sourcepub const fn new() -> Self
pub const fn new() -> Self
Construct a new, default StandardError
Ruby exception.
This constructor sets the exception message to StandardError
.
§Examples
let exception = StandardError::new();
assert_eq!(exception.message(), b"StandardError");
sourcepub const fn with_message(message: &'static str) -> Self
pub const fn with_message(message: &'static str) -> Self
Construct a new, StandardError
Ruby exception with the given
message.
§Examples
let exception = StandardError::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 = StandardError::new();
assert_eq!(exception.message(), b"StandardError");
let exception = StandardError::from("something went wrong");
assert_eq!(exception.message(), b"something went wrong");
Trait Implementations§
source§impl Clone for StandardError
impl Clone for StandardError
source§fn clone(&self) -> StandardError
fn clone(&self) -> StandardError
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresource§impl Debug for StandardError
impl Debug for StandardError
source§impl Default for StandardError
impl Default for StandardError
source§fn default() -> StandardError
fn default() -> StandardError
Returns the “default value” for a type. Read more
source§impl Display for StandardError
impl Display for StandardError
source§impl Error for StandardError
impl Error for StandardError
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 From<&'static [u8]> for StandardError
impl From<&'static [u8]> for StandardError
source§impl From<&'static str> for StandardError
impl From<&'static str> for StandardError
source§impl From<String> for StandardError
impl From<String> for StandardError
source§impl Hash for StandardError
impl Hash for StandardError
source§impl Ord for StandardError
impl Ord for StandardError
source§fn cmp(&self, other: &StandardError) -> Ordering
fn cmp(&self, other: &StandardError) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
Compares and returns the maximum of two values. Read more
source§impl PartialEq for StandardError
impl PartialEq for StandardError
source§impl PartialOrd for StandardError
impl PartialOrd for StandardError
source§impl RubyException for StandardError
impl RubyException for StandardError
impl Eq for StandardError
impl StructuralPartialEq for StandardError
Auto Trait Implementations§
impl Freeze for StandardError
impl RefUnwindSafe for StandardError
impl Send for StandardError
impl Sync for StandardError
impl Unpin for StandardError
impl UnwindSafe for StandardError
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
)