Trait AsPair

pub trait AsPair {
    type Key: AsRef<str>;
    type Value: ProcessValue;

    // Required methods
    fn from_pair(pair: (Annotated<Self::Key>, Annotated<Self::Value>)) -> Self;
    fn into_pair(self) -> (Annotated<Self::Key>, Annotated<Self::Value>);
    fn as_pair(&self) -> (&Annotated<Self::Key>, &Annotated<Self::Value>);
    fn as_pair_mut(
        &mut self,
    ) -> (&mut Annotated<Self::Key>, &mut Annotated<Self::Value>);

    // Provided methods
    fn key(&self) -> Option<&str> { ... }
    fn value(&self) -> Option<&Self::Value> { ... }
}

A trait to abstract over pairs.

Required Associated Types

type Key: AsRef<str>

type Value: ProcessValue

Required Methods

fn from_pair(pair: (Annotated<Self::Key>, Annotated<Self::Value>)) -> Self

Constructs this value from a raw tuple.

fn into_pair(self) -> (Annotated<Self::Key>, Annotated<Self::Value>)

Converts this pair into a raw tuple.

fn as_pair(&self) -> (&Annotated<Self::Key>, &Annotated<Self::Value>)

Extracts a key and value pair from the object.

fn as_pair_mut( &mut self, ) -> (&mut Annotated<Self::Key>, &mut Annotated<Self::Value>)

Extracts the mutable key and value pair from the object.

Provided Methods

fn key(&self) -> Option<&str>

Returns a reference to the string representation of the key.

fn value(&self) -> Option<&Self::Value>

Returns a reference to the value.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<K, V> AsPair for (Annotated<K>, Annotated<V>)

where K: AsRef<str>, V: ProcessValue,

type Key = K

type Value = V

fn from_pair(pair: (Annotated<Self::Key>, Annotated<Self::Value>)) -> Self

fn into_pair(self) -> (Annotated<Self::Key>, Annotated<Self::Value>)

fn as_pair(&self) -> (&Annotated<Self::Key>, &Annotated<Self::Value>)

fn as_pair_mut( &mut self, ) -> (&mut Annotated<Self::Key>, &mut Annotated<Self::Value>)

Implementors

impl AsPair for TagEntry

type Key = String

type Value = String