Struct Update 

pub struct Update<K: Key, V: ValueEncoding> {
    pub key: K,
    pub value: V::Value,
    pub next_key: K,
}

Fields

key: K

value: V::Value

next_key: K

Trait Implementations

impl<K: Clone + Key, V: Clone + ValueEncoding> Clone for Update<K, V>

where V::Value: Clone,

fn clone(&self) -> Update<K, V>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<K: Debug + Key, V: Debug + ValueEncoding> Debug for Update<K, V>

where V::Value: Debug,

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

Formats the value using the given formatter.

impl<K, V> EncodeSize for Update<K, VariableEncoding<V>>

where K: Key + EncodeSize, V: VariableValue,

fn encode_size(&self) -> usize

Returns the encoded size of this value (in bytes).

fn encode_inline_size(&self) -> usize

Returns the encoded size excluding bytes passed to BufsMut::push during Write::write_bufs. Used to size the working buffer for inline writes. Override alongside Write::write_bufs for types where large Bytes fields go via push; failing to do so will over-allocate.

impl<K: Array, V: FixedValue> FixedSize for Update<K, FixedEncoding<V>>

const SIZE: usize

The size of the encoded value (in bytes).

impl<K: PartialEq + Key, V: PartialEq + ValueEncoding> PartialEq for Update<K, V>

where V::Value: PartialEq,

fn eq(&self, other: &Update<K, V>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

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

impl<K: Array, V: FixedValue> Read for Update<K, FixedEncoding<V>>

type Cfg = ()

The Cfg type parameter allows passing configuration during the read process. This is crucial for safely decoding untrusted data, for example, by providing size limits for collections or strings.

fn read_cfg(buf: &mut impl Buf, cfg: &Self::Cfg) -> Result<Self, CodecError>

Reads a value from the buffer using the provided configuration cfg.

impl<K, V> Read for Update<K, VariableEncoding<V>>

where K: Key + Read, V: VariableValue,

type Cfg = (<K as Read>::Cfg, <V as Read>::Cfg)

The Cfg type parameter allows passing configuration during the read process. This is crucial for safely decoding untrusted data, for example, by providing size limits for collections or strings.

fn read_cfg(buf: &mut impl Buf, cfg: &Self::Cfg) -> Result<Self, CodecError>

Reads a value from the buffer using the provided configuration cfg.

impl<K: Key, V: ValueEncoding> Update for Update<K, V>

type Key = K

The key type.

type Value = <V as ValueEncoding>::Value

The value type.

type ValueEncoding = V

The value encoding (fixed or variable).

fn key(&self) -> &K

The updated key.

fn value(&self) -> &V::Value

The updated value.

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

Format the update for display.

impl<K, V> Write for Update<K, V>

where K: Key + Write, V: ValueEncoding, V::Value: Write,

fn write(&self, buf: &mut impl BufMut)

Writes the binary representation of self to the provided buffer buf.

fn write_bufs(&self, buf: &mut impl BufsMut)

Writes to a BufsMut, allowing existing Bytes chunks to be appended via BufsMut::push instead of written inline. Must encode to the same format as Write::write. Defaults to Write::write.

impl<K: Eq + Key, V: Eq + ValueEncoding> Eq for Update<K, V>

where V::Value: Eq,

impl<K: Key, V: ValueEncoding> StructuralPartialEq for Update<K, V>