Struct dock_core::util::batch_update::OnlyExistent

pub struct OnlyExistent<U>(pub U);

Apply an update to the existing entity.

Tuple Fields

0: U

Trait Implementations

impl<V, U> ApplyUpdate<Option<V>> for OnlyExistent<U>where U: ApplyUpdate<V>,

fn apply_update(self, entity: &mut Option<V>)

Applies update contained in self to the supplied entity.

impl<U: Clone> Clone for OnlyExistent<U>

fn clone(&self) -> OnlyExistent<U>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<U: Debug> Debug for OnlyExistent<U>

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

Formats the value using the given formatter.

impl<U> Decode for OnlyExistent<U>where U: Decode,

fn decode<__CodecInputEdqy: Input>( __codec_input_edqy: &mut __CodecInputEdqy ) -> Result<Self, Error>

Attempt to deserialise the value from input.

fn decode_into<I>( input: &mut I, dst: &mut MaybeUninit<Self> ) -> Result<DecodeFinished, Error>where I: Input,

Attempt to deserialize the value from input into a pre-allocated piece of memory.

fn skip<I>(input: &mut I) -> Result<(), Error>where I: Input,

Attempt to skip the encoded value from input.

fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type.

impl<U: Default> Default for OnlyExistent<U>

fn default() -> OnlyExistent<U>

Returns the “default value” for a type.

impl<'de, U> Deserialize<'de> for OnlyExistent<U>where U: Deserialize<'de>,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<U> Encode for OnlyExistent<U>where U: Encode,

fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding.

fn encode_to<__CodecOutputEdqy: Output + ?Sized>( &self, __codec_dest_edqy: &mut __CodecOutputEdqy )

Convert self to a slice and append it to the destination.

fn encode(&self) -> Vec<u8>

Convert self to an owned vector.

fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R

Convert self to a slice and then invoke the given closure with it.

fn encoded_size(&self) -> usize

Calculates the encoded size.

impl<V, U> GetUpdateKind<Option<V>> for OnlyExistent<U>where U: GetUpdateKind<V>,

fn kind(&self, entity: &Option<V>) -> UpdateKind

Returns the underlying update’s kind.

impl<U> MaxEncodedLen for OnlyExistent<U>where U: MaxEncodedLen,

fn max_encoded_len() -> usize

Upper bound, in bytes, of the maximum encoded size of this item.

impl<U: PartialEq> PartialEq<OnlyExistent<U>> for OnlyExistent<U>

fn eq(&self, other: &OnlyExistent<U>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<U> Serialize for OnlyExistent<U>where U: Serialize,

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<U, UU> TranslateUpdate<OnlyExistent<UU>> for OnlyExistent<U>where U: TranslateUpdate<UU>,

type Error = <U as TranslateUpdate<UU>>::Error

Update translation error.

fn translate_update(self) -> Result<OnlyExistent<UU>, Self::Error>

Attempts to translate underlying update to the ToUpdate.

impl<U> TypeInfo for OnlyExistent<U>where U: TypeInfo + 'static,

type Identity = OnlyExistent<U>

The type identifying for which type info is provided.

fn type_info() -> Type

Returns the static type identifier for Self.

impl<A: CanUpdate<V>, V, U: ValidateUpdate<A, V>> ValidateUpdate<A, Option<V>> for OnlyExistent<U>

fn ensure_valid(&self, actor: &A, entity: &Option<V>) -> Result<(), UpdateError>

Ensures that the underlying update is valid.

impl<U: Copy> Copy for OnlyExistent<U>

impl<U> EncodeLike<OnlyExistent<U>> for OnlyExistent<U>where U: Encode,

impl<U: Eq> Eq for OnlyExistent<U>

impl<U> StructuralEq for OnlyExistent<U>

impl<U> StructuralPartialEq for OnlyExistent<U>