pub struct Exception(/* private fields */);
Expand description
Implementations§
source§impl Exception
impl Exception
sourcepub fn from_value(val: Value) -> Option<Self>
pub fn from_value(val: Value) -> Option<Self>
Return Some(Exception)
if val
is an Exception
, None
otherwise.
§Examples
use magnus::{eval, Exception};
assert!(Exception::from_value(eval(r#"StandardError.new("example")"#).unwrap()).is_some());
assert!(Exception::from_value(eval("Object.new").unwrap()).is_none());
sourcepub fn exception_class(self) -> ExceptionClass
pub fn exception_class(self) -> ExceptionClass
Returns the class that self
is an instance of, as an
ExceptionClass
.
See also ReprValue::class
.
§Examples
use magnus::{eval, prelude::*, Exception};
let e: Exception = eval(r#"StandardError.new("example")"#).unwrap();
let ec = e.exception_class();
// safe as we immediately create an owned String and drop the reference
assert_eq!(unsafe { ec.name().to_owned() }, "StandardError");
Trait Implementations§
source§impl ReprValue for Exception
impl ReprValue for Exception
source§fn equal<T>(self, other: T) -> Result<bool, Error>where
T: ReprValue,
fn equal<T>(self, other: T) -> Result<bool, Error>where
T: ReprValue,
Checks for equality, delegating to the Ruby method
#==
. Read moresource§fn eql<T>(self, other: T) -> Result<bool, Error>where
T: ReprValue,
fn eql<T>(self, other: T) -> Result<bool, Error>where
T: ReprValue,
Checks for equality, delegating to the Ruby method
#eql?
. Read moresource§fn hash(self) -> Result<Integer, Error>
fn hash(self) -> Result<Integer, Error>
Returns an integer non-uniquely identifying
self
. Read moresource§fn to_bool(self) -> bool
fn to_bool(self) -> bool
Convert
self
to a bool
, following Ruby’s rules of false
and nil
as boolean false
and everything else boolean true
. Read moresource§fn funcall_public<M, A, T>(self, method: M, args: A) -> Result<T, Error>
fn funcall_public<M, A, T>(self, method: M, args: A) -> Result<T, Error>
source§fn block_call<M, A, R, T>(
self,
method: M,
args: A,
block: fn(_: &[Value], _: Option<Proc>) -> R
) -> Result<T, Error>
fn block_call<M, A, R, T>( self, method: M, args: A, block: fn(_: &[Value], _: Option<Proc>) -> R ) -> Result<T, Error>
source§fn respond_to<M>(self, method: M, include_private: bool) -> Result<bool, Error>where
M: IntoId,
fn respond_to<M>(self, method: M, include_private: bool) -> Result<bool, Error>where
M: IntoId,
Check if
self
responds to the given Ruby method. Read moresource§fn is_kind_of<T>(self, class: T) -> bool
fn is_kind_of<T>(self, class: T) -> bool
source§fn enumeratorize<M, A>(self, method: M, args: A) -> Enumerator ⓘwhere
M: IntoSymbol,
A: ArgList,
fn enumeratorize<M, A>(self, method: M, args: A) -> Enumerator ⓘwhere
M: IntoSymbol,
A: ArgList,
source§impl TryConvert for Exception
impl TryConvert for Exception
impl Copy 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> AsRawValue for Twhere
T: ReprValue,
impl<T> AsRawValue for Twhere
T: ReprValue,
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