Enum ClosureTreeError 

pub enum ClosureTreeError {
    UnsupportedBackend,
    Database(DbErr),
    Sqlx(Error),
    EmptyPath,
    Invariant(String),
}

Errors returned by the closure-tree helper APIs.

Variants

UnsupportedBackend

Database(DbErr)

Sqlx(Error)

EmptyPath

Invariant(String)

Implementations

impl ClosureTreeError

pub fn invariant(detail: impl Into<String>) -> Self

Trait Implementations

impl Debug for ClosureTreeError

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

Formats the value using the given formatter.

impl Display for ClosureTreeError

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

Formats the value using the given formatter.

impl Error for ClosureTreeError

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<DbErr> for ClosureTreeError

fn from(source: DbErr) -> Self

Converts to this type from the input type.

impl From<Error> for ClosureTreeError

fn from(source: Error) -> Self

Converts to this type from the input type.