Enum wagon_parser::parser::WagParseError

pub enum WagParseError {
    Unexpected {
        span: Span,
        offender: Tokens,
        expected: Vec<String>,
    },
    Fatal((Span, String)),
    CheckError(WagCheckError),
    LexError(LexingError),
    FloatError(FloatIsNan, Span),
    RegexError(Box<BuildError>, Span, String),
}

Any of the various errors that can occur during parsing.

Variants

Unexpected

Fields

span: Span

The span info for this character.

offender: Tokens

The token we found.

expected: Vec<String>

String representations for the tokens we expected to see.

An unexpected character was encountered.

Fatal((Span, String))

Something horrible happened that we do not have a specific error for.

CheckError(WagCheckError)

A wrapper around WagCheckError.

LexError(LexingError)

A wrapper around LexingError.

FloatError(FloatIsNan, Span)

Expected a float but got a NaN

RegexError(Box<BuildError>, Span, String)

Non-valid regex

Trait Implementations

impl Debug for WagParseError

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

Formats the value using the given formatter.

impl Display for WagParseError

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

Formats the value using the given formatter.

impl Error for WagParseError

fn source(&self) -> Option<&(dyn Error + 'static)>

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 ErrorReport for WagParseError

fn span(self) -> Span

Return span information for this error.

fn msg(&self) -> (String, String)

Return a tuple description of the error message.

fn report(self) -> ((String, String), Range<usize>, Option<String>)

where Self: Sized,

Return the full error report

fn source(&self) -> Option<String>

Return the text source for this error message.

impl From<LexingError> for WagParseError

fn from(value: LexingError) -> Self

Converts to this type from the input type.

impl From<WagCheckError> for WagParseError

fn from(value: WagCheckError) -> Self

Converts to this type from the input type.

impl PartialEq for WagParseError

fn eq(&self, other: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==.

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

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