Struct MissingValueError

Source

pub struct MissingValueError(pub String);

Expand description

Marker for a host failure that should surface to the guest as the built-in MissingValueError subclass: a read found no value (an index out of range, an absent record key, or a regex group that did not take part). Same contract as QuotaExceededError.

Tuple Fields§

§0: String

MissingValueError

Struct MissingValueError Copy item path

Tuple Fields§

Trait Implementations§

impl Debug for MissingValueError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl Display for MissingValueError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl Error for MissingValueError

fn source(&self) -> Option<&(dyn Error + 'static)>

fn description(&self) -> &str

fn cause(&self) -> Option<&dyn Error>

fn provide<'a>(&'a self, request: &mut Request<'a>)

Auto Trait Implementations§

impl Forget for MissingValueError

impl Freeze for MissingValueError

impl RefUnwindSafe for MissingValueError

impl Send for MissingValueError

impl Sync for MissingValueError

impl Unpin for MissingValueError

impl UnsafeUnpin for MissingValueError

impl UnwindSafe for MissingValueError

Blanket Implementations§

impl<T> Any for Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> ErrorExt for Twhere T: Error + Send + Sync + 'static,

fn raise(self) -> Exn<Self>where Self: Sized,

fn and_raise<T>(self, context: T) -> Exn<T>where T: Error + Send + Sync + 'static, Self: Sized,

fn raise_erased(self) -> Exnwhere Self: Sized,

fn raise_all<T, I>(self, sources: I) -> Exn<Self>where Self: Sized, T: Error + Send + Sync + 'static, I: IntoIterator, <I as IntoIterator>::Item: Into<Exn<T>>,

impl<T> From<T> for T

fn from(t: T) -> T

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

fn in_current_span(self) -> Instrumented<Self> ⓘ

impl<T, U> Into<U> for Twhere U: From<T>,

fn into(self) -> U

impl<T> Pointable for T

const ALIGN: usize

type Init = T

unsafe fn init(init: <T as Pointable>::Init) -> usize

unsafe fn deref<'a>(ptr: usize) -> &'a T

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

unsafe fn drop(ptr: usize)

impl<T> PolicyExt for Twhere T: ?Sized,

fn and<P, B, E>(self, other: P) -> And<T, P>where T: Sized + Policy<B, E>, P: Policy<B, E>,

fn or<P, B, E>(self, other: P) -> Or<T, P>where T: Sized + Policy<B, E>, P: Policy<B, E>,

impl<T> Same for T

type Output = T

impl<T> ToString for Twhere T: Display + ?Sized,

fn to_string(&self) -> String

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = !

fn try_from(value: U) -> Result<T, !>

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘwhere S: Into<Dispatch>,

fn with_current_subscriber(self) -> WithDispatch<Self> ⓘ

Struct MissingValueError

impl<T> Any for T
where T: 'static + ?Sized,

impl<T> Borrow<T> for T
where T: ?Sized,

impl<T> BorrowMut<T> for T
where T: ?Sized,

impl<T> ErrorExt for T
where T: Error + Send + Sync + 'static,

fn raise(self) -> Exn<Self>
where Self: Sized,

fn and_raise<T>(self, context: T) -> Exn<T>
where T: Error + Send + Sync + 'static, Self: Sized,

fn raise_erased(self) -> Exn
where Self: Sized,

fn raise_all<T, I>(self, sources: I) -> Exn<Self>
where Self: Sized, T: Error + Send + Sync + 'static, I: IntoIterator, <I as IntoIterator>::Item: Into<Exn<T>>,

impl<T, U> Into<U> for T
where U: From<T>,

impl<T> PolicyExt for T
where T: ?Sized,

fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

impl<T> ToString for T
where T: Display + ?Sized,

impl<T, U> TryFrom<U> for T
where U: Into<T>,

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘ
where S: Into<Dispatch>,