Enum LexerError 

pub enum LexerError {
    UnexpectedCharacter,
    UnterminatedString,
    UnterminatedVarRef,
    InvalidEscape,
    InvalidNumber,
    AmbiguousBoolean(String),
    AmbiguousBooleanLike(String),
    InvalidFloatNoLeading,
    InvalidFloatNoTrailing,
    NestingTooDeep,
    UnterminatedHeredoc {
        delimiter: String,
    },
    BackticksNotSupported,
}

Lexer error types.

Variants

UnexpectedCharacter

UnterminatedString

UnterminatedVarRef

InvalidEscape

InvalidNumber

AmbiguousBoolean(String)

AmbiguousBooleanLike(String)

InvalidFloatNoLeading

InvalidFloatNoTrailing

NestingTooDeep

Nesting depth exceeded (too many nested parentheses in arithmetic).

UnterminatedHeredoc

Heredoc body ended without seeing the closing delimiter on its own line. The user almost certainly meant to type the delimiter — silently using whatever was collected up to EOF would mask missing data.

Fields

delimiter: String

BackticksNotSupported

Backtick command substitution. Kaish drops backticks intentionally — they’re listed in docs/LANGUAGE.md and the help system as not supported. We surface this as a dedicated error (rather than UnexpectedCharacter) so the message can point users at the $(cmd) replacement.

Trait Implementations

impl Clone for LexerError

fn clone(&self) -> LexerError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LexerError

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

Formats the value using the given formatter.

impl Default for LexerError

fn default() -> LexerError

Returns the “default value” for a type.

impl Display for LexerError

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

Formats the value using the given formatter.

impl PartialEq for LexerError

fn eq(&self, other: &LexerError) -> 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 StructuralPartialEq for LexerError