Struct fj_kernel::partial::Partial

pub struct Partial<T: HasPartial> { /* private fields */ }

Wrapper around a partial object

Controls access to the partial object. Can be cloned, to access the same partial object from multiple locations.

Implementations

impl<T: HasPartial + 'static> Partial<T>

pub fn new() -> Self

Construct a Partial with a default inner partial object

pub fn from_partial(partial: T::Partial) -> Self

Construct a Partial from a partial object

pub fn from_full(full: Handle<T>, cache: &mut FullToPartialCache) -> Self

Construct a partial from a full object

pub fn from_full_entry_point(full: Handle<T>) -> Self

Construct a partial from the entry point to an object graph

This is a convenience wrapper around Self::from_full, passing an empty cache to that method. It it not appropriate to call this method, unless to start a conversion of an object graph by passing its entry point.

pub fn id(&self) -> ObjectId

Access the ID of this partial object

pub fn read(&self) -> impl Deref<Target = T::Partial> + '_

Access the partial object

pub fn write(&mut self) -> impl DerefMut<Target = T::Partial> + '_

Access the partial object mutably

Panics

Panics, if this method is called while the return value from a previous call is still borrowed.

pub fn build(self, objects: &mut Service<Objects>) -> Handle<T>where
    T: Insert,

Build a full object from this partial one

Panics

Panics, if a return value of Self::write is still borrowed.

Trait Implementations

impl<T: HasPartial> Clone for Partial<T>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: HasPartial + 'static> Debug for Partial<T>where
    T::Partial: Debug,

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

Formats the value using the given formatter.

impl<T: HasPartial + 'static> Default for Partial<T>

fn default() -> Self

Returns the “default value” for a type.