Struct ParseFailure 

#[non_exhaustive]
pub struct ParseFailure {
    pub error: ParseError,
    pub interactive_parser: Option<Box<OwnedInteractiveParser>>,
}

A failed Lark::parse, Lark::parse_opts or Lark::parse_with_hook: the error, and the interactive parser the parse left (Lark’s e.interactive_parser), where one exists. Boxed, so a successful parse’s Result stays small.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

error: ParseError

interactive_parser: Option<Box<OwnedInteractiveParser>>

Trait Implementations

impl Debug for ParseFailure

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

Formats the value using the given formatter.

impl Display for ParseFailure

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

Formats the value using the given formatter.

impl Error for ParseFailure

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<ParseError> for ParseFailure

A failure that kept no parser.

fn from(error: ParseError) -> Self

Converts to this type from the input type.

impl From<ParseFailure> for ParseError

The error alone, dropping any parser it kept.

fn from(failure: ParseFailure) -> Self

Converts to this type from the input type.