Enum Info

pub enum Info<T, R> {
    Token(T),
    Range(R),
    Owned(String),
    Static(&'static str),
}

Enum holding error information. Variants are defined for Stream::Token and Stream::Range as well as string variants holding easy descriptions.

As there is implementations of From for String and &'static str the constructor need not be used directly as calling msg.into() should turn a message into the correct Info variant.

Variants

Token(T)

Range(R)

Owned(String)

Static(&'static str)

Implementations

impl<T, R> Info<T, R>

pub fn map_token<F, U>(self, f: F) -> Info<U, R>

where F: FnOnce(T) -> U,

pub fn map_range<F, S>(self, f: F) -> Info<T, S>

where F: FnOnce(R) -> S,

Trait Implementations

impl<T: Clone, R: Clone> Clone for Info<T, R>

fn clone(&self) -> Info<T, R>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug, R: Debug> Debug for Info<T, R>

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

Formats the value using the given formatter.

impl<T: Display, R: Display> Display for Info<T, R>

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

Formats the value using the given formatter.

impl<T, R> From<&'static str> for Info<T, R>

fn from(s: &'static str) -> Info<T, R>

Converts to this type from the input type.

impl<T, R, F> From<Info<T, R, F>> for Info<T, R>

where F: Display,

fn from(info: PrimitiveInfo<T, R, F>) -> Self

Converts to this type from the input type.

impl<T, R> From<String> for Info<T, R>

fn from(s: String) -> Info<T, R>

Converts to this type from the input type.

impl<R> From<char> for Info<char, R>

fn from(s: char) -> Info<char, R>

Converts to this type from the input type.

impl<R> From<u8> for Info<u8, R>

fn from(s: u8) -> Info<u8, R>

Converts to this type from the input type.

impl<T: PartialEq, R: PartialEq> PartialEq for Info<T, R>

fn eq(&self, other: &Info<T, R>) -> 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.