Enum lang_util::error::ParseErrorKind

pub enum ParseErrorKind<E: LexicalError> {
    InvalidToken,
    UnrecognizedEof {
        expected: Vec<String>,
    },
    UnrecognizedToken {
        token: TokenDescription,
        expected: Vec<String>,
    },
    ExtraToken {
        token: TokenDescription,
    },
    LexicalError {
        error: E,
    },
}

Parsing error kind

Variants

InvalidToken

An invalid token was encountered during lexical analysis

UnrecognizedEof

Unexpected end of file

Fields

expected: Vec<String>

List of expected token names

UnrecognizedToken

Unexpected token

Fields

token: TokenDescription

The unexpected token

expected: Vec<String>

List of expected token names

ExtraToken

Extra token after input

Fields

token: TokenDescription

The extra token

LexicalError

Lexical analysis error

Fields

error: E

Lexical error

Trait Implementations

impl<E: Clone + LexicalError> Clone for ParseErrorKind<E>

fn clone(&self) -> ParseErrorKind<E>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<E: Debug + LexicalError> Debug for ParseErrorKind<E>

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

Formats the value using the given formatter.

impl<E: LexicalError> Display for ParseErrorKind<E>

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

Formats the value using the given formatter.

impl<E: Error + LexicalError + 'static> Error for ParseErrorKind<E>

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<T: Token, E: LexicalError> From<ParseError<LexerPosition, T, E>> for ParseErrorKind<E>

fn from(error: ParseError<LexerPosition, T, E>) -> Self

Converts to this type from the input type.

impl<E: PartialEq + LexicalError> PartialEq for ParseErrorKind<E>

fn eq(&self, other: &ParseErrorKind<E>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<E: Eq + LexicalError> Eq for ParseErrorKind<E>

impl<E: LexicalError> StructuralPartialEq for ParseErrorKind<E>