Trait DecoderHooks 

pub trait DecoderHooks: Send + Sync {
    // Required methods
    fn on_chunk(&mut self, signal: ReaderChunkSignal);
    fn on_seek(&mut self, signal: ReaderSeekSignal);
}

Reader-side hooks invoked by the decoder layer’s HookedDecoder right before it forwards the inner decoder’s typed outcome to the caller.

One call per next_chunk / seek — granularity is decoder operations, not byte-level reads.

Required Methods

fn on_chunk(&mut self, signal: ReaderChunkSignal)

Called once per next_chunk after the inner decoder produced an outcome.

fn on_seek(&mut self, signal: ReaderSeekSignal)

Called once per seek after the inner decoder parked at the destination (or signalled PastEof).

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors