Enum ParseErrorKind

#[non_exhaustive]
pub enum ParseErrorKind {
    UnknownToken,
    LexErrorWithMessage(LexErrorMsg),
    KeywordAfterLet(String),
    KeywordAfterColon(String),
    NonAsciiIdentAfterColon(char),
    GroupNameTooLong(usize),
    UnexpectedKeyword(String),
    Deprecated(DeprecationError),
    Expected(&'static str),
    LeftoverTokens,
    ExpectedToken(Token),
    RangeIsNotIncreasing,
    RangeLeadingZeroesVariableLength,
    UnallowedNot,
    UnallowedMultiNot(usize),
    LonePipe,
    LetBindingExists,
    MissingLetKeyword,
    InvalidEscapeInStringAt(usize),
    CharString(CharStringError),
    CharClass(CharClassError),
    InvalidCodePoint,
    Number(NumberError),
    Repetition(RepetitionError),
    MultipleStringsInTestCase,
    RecursionLimit,
}

An error kind (without a span) than can occur only during parsing

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

UnknownToken

LexErrorWithMessage(LexErrorMsg)

KeywordAfterLet(String)

KeywordAfterColon(String)

NonAsciiIdentAfterColon(char)

GroupNameTooLong(usize)

UnexpectedKeyword(String)

Deprecated(DeprecationError)

Expected(&'static str)

LeftoverTokens

ExpectedToken(Token)

RangeIsNotIncreasing

RangeLeadingZeroesVariableLength

UnallowedNot

UnallowedMultiNot(usize)

LonePipe

LetBindingExists

MissingLetKeyword

InvalidEscapeInStringAt(usize)

CharString(CharStringError)

CharClass(CharClassError)

InvalidCodePoint

Number(NumberError)

Repetition(RepetitionError)

MultipleStringsInTestCase

RecursionLimit

Implementations

impl ParseErrorKind

pub fn at(self, span: Span) -> ParseError

Creates a ParseError from this error kind, and a Span indicating where the error occurred.

Trait Implementations

impl Clone for ParseErrorKind

fn clone(&self) -> ParseErrorKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParseErrorKind

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

Formats the value using the given formatter.

impl Display for ParseErrorKind

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

Formats the value using the given formatter.

impl Error for ParseErrorKind

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<CharClassError> for ParseErrorKind

fn from(e: CharClassError) -> Self

Converts to this type from the input type.

impl From<DeprecationError> for ParseErrorKind

fn from(e: DeprecationError) -> Self

Converts to this type from the input type.

impl From<NumberError> for ParseErrorKind

fn from(e: NumberError) -> Self

Converts to this type from the input type.

impl From<RepetitionError> for ParseErrorKind

fn from(e: RepetitionError) -> Self

Converts to this type from the input type.

impl PartialEq for ParseErrorKind

fn eq(&self, other: &ParseErrorKind) -> 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 Eq for ParseErrorKind

impl StructuralPartialEq for ParseErrorKind