Module wrapper 

Structs

PassthroughWalWrapper

A Wrapper implementation that delegates everything to the wrapped wal

Then

WalRef

WalWrapper

A convenient wrapper struct that implement WAL with a wrapper where the wrapper needs to implement WrapWal instead of Wal, where all methods delegate to wrapped by default.

WrappedWal

Traits

WrapWal

Trait implemented by implementor that only need to wrap around another Wal implementation. By default, all methods delegate to the wrapped wal.