ErrorSource

Enum ErrorSource

#[non_exhaustive]pub enum ErrorSource {
    IoError(Arc<Error>),
    Inaccessible(Error),
    Permissions(Error),
    NoLock,
    Serde(Arc<Error>),
    AlreadyLocked,
    Bug(Bug),
}

Expand description

An underlying error manipulating persistent state.

Since these are more or less orthogonal to what we were doing and where the problem was, this is a separate type.

Variants (Non-exhaustive)§

This enum is marked as non-exhaustive

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

IoError(Arc<Error>)

An IO error occurred.

Inaccessible(Error)

Inaccessible path, or permissions were incorrect

Permissions(Error)

👎Deprecated: use ErrorSource::Inaccessible instead

Inaccessible path, or permissions were incorrect

This variant name is misleading - see the docs for fs_mistrust::Error. Please use ErrorSource::Inaccessible instead.

NoLock

Tried to save without holding an exclusive lock.

Serde(Arc<Error>)

Problem when serializing or deserializing JSON data.

AlreadyLocked

Another task or process holds this persistent state lock, but we need exclusive access

Bug(Bug)

Programming error

Trait Implementations§

impl Clone for ErrorSource

fn clone(&self) -> ErrorSource

Returns a duplicate of the value. Read more

1.0.0 · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

impl Debug for ErrorSource

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

Formats the value using the given formatter. Read more

impl Display for ErrorSource

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

Formats the value using the given formatter. Read more

impl Error for ErrorSource

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

👎Deprecated since 1.42.0: use the Display impl or to_string()

1.0.0 · Source§

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

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

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

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports. Read more

impl From<Arc<Error>> for ErrorSource

fn from(source: Arc<Error>) -> Self

Converts to this type from the input type.

impl From<BadSlug> for ErrorSource

fn from(bs: BadSlug) -> ErrorSource

Converts to this type from the input type.

impl From<Bug> for ErrorSource

fn from(source: Bug) -> Self

Converts to this type from the input type.

impl From<Error> for ErrorSource

fn from(e: Error) -> ErrorSource

Converts to this type from the input type.

impl From<Error> for ErrorSource

fn from(e: Error) -> ErrorSource

Converts to this type from the input type.

impl From<Error> for ErrorSource

fn from(e: Error) -> ErrorSource

Converts to this type from the input type.

Auto Trait Implementations§

impl Freeze for ErrorSource

impl !RefUnwindSafe for ErrorSource

impl Send for ErrorSource

impl Sync for ErrorSource

impl Unpin for ErrorSource

impl !UnwindSafe for ErrorSource

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

impl<E> ErrorReport for E
where E: Error + 'static,

fn report(&self) -> Report<ReportHelper<'_>>

Return an object that displays the error and its causes

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

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

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> IntoEither for T

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

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

fn to_string(&self) -> String

Converts the given value to a String. Read more

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

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

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

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

The type returned in the event of a conversion error.

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

Performs the conversion.

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

fn try_into_slug(&self) -> Result<Slug, BadSlug>

Convert self into a Slug, if it has the right syntax

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

fn vzip(self) -> V

impl<T> WithSubscriber for T

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

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more

Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 56 bytes

Size for each variant:

IoError: 8 bytes
Inaccessible: 48 bytes
Permissions: 48 bytes
NoLock: 0 bytes
Serde: 8 bytes
AlreadyLocked: 0 bytes
Bug: 8 bytes