Enum DeferredReadOrOwn

pub enum DeferredReadOrOwn<T>
where
    T: ReadFrom,
{
    Own(T),
    Deferred(DeferredRead<T>),
}

A wrapper that defers the reading of a file until it is actually needed.

It can also store the value.

Variants

Own(T)

Deferred(DeferredRead<T>)

Implementations

impl<T> DeferredReadOrOwn<T>

where T: ReadFrom,

pub fn get(&self) -> Result<T>

where T: Clone,

Gets the value. If it is not already read, it will read it, but without saving it.

pub fn perform_and_store_read(&mut self) -> Result<&T>

Performs the read and stores the value. If the value is already read, it will just return a reference to it.

Trait Implementations

impl<T> Clone for DeferredReadOrOwn<T>

where T: ReadFrom + Clone,

fn clone(&self) -> DeferredReadOrOwn<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T> Debug for DeferredReadOrOwn<T>

where T: ReadFrom + Debug,

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

Formats the value using the given formatter.

impl<T> Hash for DeferredReadOrOwn<T>

where T: ReadFrom + Hash,

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

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

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<T> ReadFrom for DeferredReadOrOwn<T>

where T: ReadFrom,

fn read_from(path: &Path) -> Result<Self>

where Self: Sized,

Reads the structure from the specified path, which can be either a file or a directory.

impl<T> WriteTo for DeferredReadOrOwn<T>

where T: ReadFrom + WriteTo,

fn write_to(&self, path: &Path) -> Result<()>

Writes the structure to the specified path.