Enum Error

pub enum Error {
    InvalidToken {
        location: usize,
    },
    UnrecognizedEof {
        location: usize,
        expected: Vec<String>,
    },
    UnrecognizedToken {
        token: (usize, String, usize),
        expected: Vec<String>,
    },
    ExtraToken {
        token: (usize, String, usize),
    },
    Lexical(LexicalError),
    MalformedStringLiteral(MalformedStringError),
    MalformedDirectiveLocation(usize, String, usize),
    VariableInConstPosition(usize, String, usize),
}

Variants

InvalidToken

Generated by the parser when it encounters a token (or EOF) it did not expect.

Fields

location: usize

UnrecognizedEof

Generated by the parser when it encounters an EOF it did not expect.

Fields

location: usize

The end of the final token

expected: Vec<String>

The set of expected tokens: these names are taken from the grammar and hence may not necessarily be suitable for presenting to the user.

UnrecognizedToken

Generated by the parser when it encounters a token it did not expect.

Fields

token: (usize, String, usize)

The unexpected token of type T with a span given by the two L values.

expected: Vec<String>

The set of expected tokens: these names are taken from the grammar and hence may not necessarily be suitable for presenting to the user.

ExtraToken

Generated by the parser when it encounters additional, unexpected tokens.

Fields

token: (usize, String, usize)

Lexical(LexicalError)

Lexing errors

MalformedStringLiteral(MalformedStringError)

Malformed string literal

MalformedDirectiveLocation(usize, String, usize)

Malformed directive location

VariableInConstPosition(usize, String, usize)

Variable found in const position

Implementations

impl Error

pub fn span(&self) -> Span

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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<usize, Token<'_>, AdditionalErrors>> for Error

fn from(value: ParseError<usize, Token<'_>, AdditionalErrors>) -> Self

Converts to this type from the input type.

impl PartialEq for Error

fn eq(&self, other: &Error) -> 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 Error

impl StructuralPartialEq for Error