Enum LinkError 

pub enum LinkError {
    NotFound(u128),
    InvalidFormat(String),
    StorageError(String),
    QueryError(String),
    ParseError(String),
    Io(Error),
    Doublets(String),
    Lock(String),
    Transaction(String),
    AddressOutOfRange(u128),
}

Error types for link operations

Variants

NotFound(u128)

No link exists at the requested address.

The address is widened to u128 so the same error type can be used with every doublets address type (u32, u64, usize).

InvalidFormat(String)

StorageError(String)

QueryError(String)

ParseError(String)

Io(Error)

Filesystem failure while reading or writing a links database.

Doublets(String)

Failure reported by the underlying doublets store.

Lock(String)

Advisory file lock could not be acquired or released.

Transaction(String)

Invalid use of the transactions layer (nested transaction, …).

AddressOutOfRange(u128)

A recorded address does not fit into the configured address type.

Implementations

impl LinkError

pub fn not_found<T: LinkReference>(index: T) -> Self

Builds a LinkError::NotFound from any doublets address type.

Trait Implementations

impl Debug for LinkError

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

Formats the value using the given formatter.

impl Display for LinkError

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

Formats the value using the given formatter.

impl Error for LinkError

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<T: LinkReference> From<Error<T>> for LinkError

fn from(error: Error<T>) -> Self

Converts to this type from the input type.

impl From<Error> for LinkError

fn from(source: Error) -> Self

Converts to this type from the input type.