Struct Error 

pub struct Error {
    pub kind: ErrorKind,
    /* private fields */
}

Error type for parsing.

Fields

kind: ErrorKind

Kind of the error.

Implementations

impl Error

pub const fn no_error() -> Error

Create a ErrorKind::NoError error.

pub fn upgrade<T>(&mut self, r: Result<T, Error>) -> Result<T, Error>

Upgrade an error to one with greater pos value.

pub fn set_pos(&mut self, pos: impl TokenCount)

Set the position of the error.

Sometimes the position of the error is not known at the time of creation. This allows to adjust it later.

pub const fn pos(&self) -> usize

Get the position of the error.

pub fn unexpected_token<T>( at: &ShadowCountedIter<'_, <TokenStream as IntoIterator>::IntoIter>, ) -> Result<T, Error>

Create a Result<T>::Err(Error{ kind: ErrorKind::Unexpected }) error.

pub fn unexpected_end<T>() -> Result<T, Error>

Create a Result<T>::Err(Error{ kind: ErrorKind::UnexpectedEnd }) error.

pub fn other<T>(pos: impl TokenCount, reason: String) -> Result<T, Error>

Create a Result<T>::Err(Error{ kind: ErrorKind::Other }) error.

pub fn dynamic(pos: impl TokenCount, err: impl Error + 'static) -> Error

Create a Error::Dynamic error.

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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.