Enum ScanningError

pub enum ScanningError {
    UnterminatedString(usize),
    InvalidNumber(usize),
    InvalidFloat(usize),
    UnknownToken(usize, char),
    UnknownEscape(usize, char),
    Unknown,
}

Errors for the crate::frontend::lexer module.

Variants

UnterminatedString(usize)

When a string was started but jingo reached the end of the file without it being closed.

Examples

fn awesome(input) {
    return input * 2;
}

var x = "following string never closes

fn broken_func(fix_string) {
    print fix_string;
}

InvalidNumber(usize)

A number was given that was not valid, possibly looking like 0-2-30.

InvalidFloat(usize)

A float was given that was not valid, possibly looking like 0...3221..

UnknownToken(usize, char)

An unknown token was given, user error (usize is line num, char is bad token).

UnknownEscape(usize, char)

Unknown escape sequence (e.g. \9 isn’t an escape sequence like \n).

Unknown

See crate::error documentation for more on this.

Trait Implementations

impl Clone for ScanningError

fn clone(&self) -> ScanningError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ScanningError

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

Formats the value using the given formatter.

impl PartialEq for ScanningError

fn eq(&self, other: &ScanningError) -> 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 PartialOrd for ScanningError

fn partial_cmp(&self, other: &ScanningError) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for ScanningError