Enum knightrs::ParseError

pub enum ParseError {
    NothingToParse,
    UnknownTokenStart {
        chr: char,
        line: usize,
    },
    UnterminatedQuote {
        line: usize,
    },
    MissingFunctionArgument {
        func: char,
        number: usize,
        line: usize,
    },
    InvalidString {
        line: usize,
        err: InvalidChar,
    },
}

The error type used to indicate an error whilst parsing Knight source code.

Variants

NothingToParse

Indicates that the end of stream was reached before a value could be parsed.

UnknownTokenStart

Indicates that an invalid character was encountered.

Fields of UnknownTokenStart

chr: char

The invalid character that was encountered.

line: usize

The line that the invalid character occurred on.

UnterminatedQuote

A starting quote was found without an associated ending quote.

Fields of UnterminatedQuote

line: usize

The line number the string started on.

MissingFunctionArgument

A function was parsed, but one of its arguments was not able to be parsed.

Fields of MissingFunctionArgument

func: char

The function whose argument is missing.

number: usize

The argument number.

line: usize

The line number the function started on.

InvalidString

An invalid character was encountered in a RcString literal.

Fields of InvalidString

line: usize

The line whence the string started.

err: InvalidChar

The error itself.

Trait Implementations

impl Debug for ParseError

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

Formats the value using the given formatter.

impl Display for ParseError

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

Formats the value using the given formatter.

impl Error for ParseError

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

The lower-level source of this error, if any.

pub fn backtrace(&self) -> Option<&Backtrace>

🔬 This is a nightly-only experimental API. (backtrace)

Returns a stack backtrace, if available, of where this error occurred.

pub fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

pub fn cause(&self) -> Option<&dyn Error>

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

impl From<ParseError> for Error

fn from(err: ParseError) -> Self

Performs the conversion.