Enum chomp::parsers::Error

pub enum Error<I> {
    Expected(I),
    Unexpected,
    String(Vec<I>),
}

Common error for the basic Chomp parsers, verbose version.

This is a verbose version of the common error for the basic Chomp parsers. It will contain information about what a parser expected or if it encountered something unexpected (in the case of user supplied predicates, eg. satisfy).

This is coupled with the state found in the error state of the ParseResult type.

Variants

Expected(I)

Expected a specific token

Unexpected

Did not expect the token present in the input stream

String(Vec<I>)

Expected a specific string of tokens

Methods

impl<I> Error<I>

fn new() -> Self

Creates a new Unexpected error.

Should be used when the error value is not important.

Trait Implementations

impl<I: Hash> Hash for Error<I>

fn hash<__HI: Hasher>(&self, __arg_0: &mut __HI)

Feeds this value into the state given, updating the hasher as necessary.

fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher

Feeds a slice of this type into the state provided.

impl<I: PartialOrd> PartialOrd for Error<I>

fn partial_cmp(&self, __arg_0: &Error<I>) -> Option<Ordering>

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

fn lt(&self, __arg_0: &Error<I>) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, __arg_0: &Error<I>) -> bool

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

fn gt(&self, __arg_0: &Error<I>) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, __arg_0: &Error<I>) -> bool

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

impl<I: Ord> Ord for Error<I>

fn cmp(&self, __arg_0: &Error<I>) -> Ordering

This method returns an Ordering between self and other.

impl<I: PartialEq> PartialEq for Error<I>

fn eq(&self, __arg_0: &Error<I>) -> bool

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

fn ne(&self, __arg_0: &Error<I>) -> bool

This method tests for !=.

impl<I: Eq> Eq for Error<I>

impl<I: Debug> Debug for Error<I>

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

Formats the value using the given formatter.

impl<I: Clone> Clone for Error<I>

fn clone(&self) -> Error<I>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<I> Display for Error<I> where I: Debug

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

Formats the value using the given formatter.

impl<I: Any + Debug> Error for Error<I>

fn description(&self) -> &str

A short description of the error.

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

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