Enum lambda_calculus::parser::ParseError

pub enum ParseError {
    InvalidCharacter((usize, char)),
    InvalidExpression,
    EmptyExpression,
}

An error returned by parse() when a parsing issue is encountered.

Variants

InvalidCharacter((usize, char))

lexical error; contains the invalid character and its index

InvalidExpression

syntax error; the expression is invalid

EmptyExpression

syntax error; the expression is empty

Trait Implementations

impl Debug for ParseError

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl PartialEq for ParseError

fn eq(&self, __arg_0: &ParseError) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, __arg_0: &ParseError) -> bool

This method tests for !=.