Struct LRLexError

pub struct LRLexError { /* private fields */ }

A Lexing error.

Implementations

impl LRLexError

pub fn new(span: Span) -> Self

Construct a new LRLex error covering span.

pub fn new_with_lexing_state(span: Span, lexing_state: StartStateId) -> Self

Construct a new LRLex error covering span for lexing_state.

pub fn lexing_state(&self) -> Option<StartStateId>

Returns the state, if there was one, that the lexer was in when the error was detected.

Trait Implementations

impl Clone for LRLexError

fn clone(&self) -> LRLexError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for LRLexError

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

Formats the value using the given formatter.

impl Display for LRLexError

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

Formats the value using the given formatter.

impl Error for LRLexError

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 LexError for LRLexError

fn span(&self) -> Span

Return the span associated with this error.