Trait generic_json::MetaValue[−][src]

pub trait MetaValue<T: Json> {
    fn new(value: Value<T>, metadata: T::MetaData) -> Self;
    fn value(&self) -> ValueRef<'_, T>;
    fn value_mut(&mut self) -> ValueMut<'_, T>;
    fn metadata(&self) -> &T::MetaData;
    fn as_pair(&self) -> (ValueRef<'_, T>, &T::MetaData);
    fn as_pair_mut(&mut self) -> (ValueMut<'_, T>, &T::MetaData);
}

Expand description

JSON value attached to some metadata.

Required methods

fn new(value: Value<T>, metadata: T::MetaData) -> Self

Creates a new “meta value” from a Value and its associated metadata.

fn value(&self) -> ValueRef<'_, T>

Returns a reference to the actual JSON value (without the metadata).

fn value_mut(&mut self) -> ValueMut<'_, T>

Returns a mutable reference to the actual JSON value (without the metadata).

fn metadata(&self) -> &T::MetaData

Returns a reference to the metadata associated to the JSON value.

fn as_pair(&self) -> (ValueRef<'_, T>, &T::MetaData )

Returns a pair containing a reference to the JSON value and a reference to its metadata.

fn as_pair_mut(&mut self) -> (ValueMut<'_, T>, &T::MetaData )

Returns a pair containing a mutable reference to the JSON value and a reference to its metadata.

Implementors