Struct FromValueError 

pub struct FromValueError { /* private fields */ }

Error raised when a value cannot be converted to the expected type when using FnWrapper.

Implementations

impl FromValueError

pub fn kind(&self) -> &FromValueErrorKind

Returns the error kind.

pub fn arg_index(&self) -> usize

Returns the zero-based index of the argument where the error has occurred.

pub fn location(&self) -> &[FromValueErrorLocation]

Returns the error location, starting from the outermost one.

Trait Implementations

impl Clone for FromValueError

fn clone(&self) -> FromValueError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FromValueError

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

Formats the value using the given formatter.

impl Display for FromValueError

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

Formats the value using the given formatter.

impl Error for FromValueError

Available on crate feature std only.

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.