Struct ValueCodecDescriptor 

pub struct ValueCodecDescriptor { /* private fields */ }

An immutable, safely erased bidirectional string codec for one value type.

Implementations

impl ValueCodecDescriptor

pub const fn of<C, V>() -> Self

where C: Default + ValueEncoder<V, Output = String> + ValueDecoder<str, Output = V> + 'static, <C as ValueEncoder<V>>::Error: Error + 'static, <C as ValueDecoder<str>>::Error: Error + 'static, V: 'static,

Creates a descriptor for codec C and value type V.

pub fn codec_type_id(&self) -> TypeId

Returns the process-local codec type identity.

pub fn codec_type_name(&self) -> &'static str

Returns the diagnostic codec type name.

pub fn value_type_id(&self) -> TypeId

Returns the process-local value type identity.

pub fn value_type_name(&self) -> &'static str

Returns the diagnostic value type name.

pub fn encode( &self, value: &dyn Any, ) -> Result<String, ValueCodecExecutionError>

Encodes one erased value after checking its concrete type.

Errors

Returns a type mismatch or the typed encoder source error.

pub fn decode( &self, input: &str, ) -> Result<Box<dyn Any>, ValueCodecExecutionError>

Decodes one string into a safely erased value of the declared type.

Errors

Returns the typed decoder source error.

Trait Implementations

impl Clone for ValueCodecDescriptor

fn clone(&self) -> ValueCodecDescriptor

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ValueCodecDescriptor

impl Debug for ValueCodecDescriptor

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

Formats descriptor metadata without invoking either codec function.