Struct CacheCodec 

pub struct CacheCodec { /* private fields */ }

Type-erased codec for serializing and deserializing cache entries.

CacheCodec is two plain function pointers — it is Copy and has no heap allocation. Construct one via CacheCodec::from_impl for types that implement CacheCodecImpl, or CacheCodec::new for custom cases (e.g. when the orphan rule prevents a direct impl).

Implementations

impl CacheCodec

pub fn new( serialize: fn(&Arc<dyn Any + Send + Sync>, &mut dyn Write) -> Result<()>, deserialize: fn(&Bytes) -> Result<Arc<dyn Any + Send + Sync>>, ) -> Self

Create a CacheCodec from plain function pointers.

Prefer from_impl when the value type implements CacheCodecImpl. Use this for types where a direct impl isn’t possible (e.g. orphan rule prevents it).

pub fn from_impl<T: CacheCodecImpl + 'static>() -> Self

Create a CacheCodec from a CacheCodecImpl implementation.

For sized types stored directly in the cache. The codec downcasts &dyn Any to &T for serialization and returns Arc<T> from deserialization.

pub fn serialize( &self, value: &Arc<dyn Any + Send + Sync>, writer: &mut dyn Write, ) -> Result<()>

pub fn deserialize(&self, data: &Bytes) -> Result<Arc<dyn Any + Send + Sync>>

Trait Implementations

impl Clone for CacheCodec

fn clone(&self) -> CacheCodec

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CacheCodec

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

Formats the value using the given formatter.

impl Copy for CacheCodec