Enum LexError 

pub enum LexError {
    UnterminatedString {
        span: Span,
    },
    InvalidNumber {
        span: Span,
    },
    UnterminatedComment {
        span: Span,
    },
    InvalidEscape {
        escape: char,
        span: Span,
    },
}

Something went wrong during lexing (tokenization).

These errors happen before parsing even starts. The source text couldn’t be broken into valid tokens.

Variants

UnterminatedString

A string literal was opened but never closed.

Fields

span: Span

InvalidNumber

A number literal couldn’t be understood.

Fields

span: Span

UnterminatedComment

A block comment (--[[ ... ]]) was opened but never closed.

Fields

span: Span

InvalidEscape

A string contains a backslash sequence that isn’t valid.

Fields

escape: char

span: Span

Trait Implementations

impl Clone for LexError

fn clone(&self) -> LexError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LexError

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

Formats the value using the given formatter.

impl Display for LexError

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

Formats the value using the given formatter.

impl Error for LexError

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.