Enum ViewError 

pub enum ViewError {
    BcsError(Error),
    IoError(Error),
    ArithmeticError(ArithmeticError),
    TryLockError(Vec<u8>),
    TokioJoinError(JoinError),
    StoreError {
        backend: &'static str,
        error: Box<dyn Error + Sync + Send>,
        must_reload_view: bool,
    },
    KeyTooLong,
    NotFound(String),
    InconsistentEntries,
    MissingEntries(String),
    PostLoadValuesError,
    HasPendingChanges,
    MalformedContent(&'static str),
}

Main error type for the crate.

Variants

BcsError(Error)

BCS serialization error.

IoError(Error)

Input output error.

ArithmeticError(ArithmeticError)

Arithmetic error

TryLockError(Vec<u8>)

Failed to lock a reentrant collection entry since it is currently being accessed

TokioJoinError(JoinError)

Tokio errors can happen while joining.

StoreError

Errors within the context can occur and are presented as ViewError.

Fields

backend: &'static str

The name of the backend that produced the error

error: Box<dyn Error + Sync + Send>

The inner error

must_reload_view: bool

Whether this error may have left storage in an undetermined state, so the view must be reloaded before being used again.

KeyTooLong

The key must not be too long

NotFound(String)

The entry does not exist in memory

InconsistentEntries

The database is corrupt: Entries don’t have the expected hash.

MissingEntries(String)

The database is corrupt: Some entries are missing

PostLoadValuesError

The values are incoherent.

HasPendingChanges

The operation requires the view to have no pending in-memory changes.

MalformedContent(&'static str)

The canonical byte stream is malformed.

Implementations

impl ViewError

pub fn must_reload_view(&self) -> bool

Returns true if this error may have left storage in an undetermined state, so the view must be reloaded before being used again.

Trait Implementations

impl Debug for ViewError

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

Formats the value using the given formatter.

impl Display for ViewError

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

Formats the value using the given formatter.

impl Error for ViewError

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

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

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

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.

impl From<ArithmeticError> for ViewError

fn from(source: ArithmeticError) -> ViewError

Converts to this type from the input type.

impl<E> From<E> for ViewError

where E: KeyValueStoreError,

fn from(error: E) -> ViewError

Converts to this type from the input type.

impl From<Error> for ViewError

fn from(source: Error) -> ViewError

Converts to this type from the input type.

impl From<Error> for ViewError

fn from(source: Error) -> ViewError

Converts to this type from the input type.

impl From<JoinError> for ViewError

fn from(source: JoinError) -> ViewError

Converts to this type from the input type.

impl From<ViewError> for ChainError

fn from(source: ViewError) -> ChainError

Converts to this type from the input type.

impl From<ViewError> for ExecutionError

fn from(source: ViewError) -> ExecutionError

Converts to this type from the input type.

impl From<ViewError> for WorkerError

fn from(source: ViewError) -> WorkerError

Converts to this type from the input type.