Expand description
§BiConsumerOnce Types
Provides one-time bi-consumer interface implementations for operations accepting two input parameters without returning a result.
It is similar to the FnOnce(&T, &U) trait in the standard library.
This module provides a unified BiConsumerOnce trait and one concrete
implementation:
BoxBiConsumerOnce<T, U>: Box-based single ownership implementation
§Why No Arc/Rc Variants?
Unlike reusable BiConsumer
implementations, this module does not provide ArcBiConsumerOnce or
RcBiConsumerOnce implementations. This is a design decision based on the
fundamental incompatibility between FnOnce semantics and shared ownership.
See the design documentation for details.
§Design Philosophy
BiConsumerOnce uses FnOnce(&T, &U) semantics: for truly one-time
consumption operations.
Unlike BiConsumer, BiConsumerOnce consumes itself on first call. Suitable for initialization callbacks, cleanup callbacks, etc.
Structs§
- BoxBi
Consumer Once - BoxBiConsumerOnce struct
- BoxConditional
BiConsumer Once - BoxConditionalBiConsumerOnce struct
Traits§
- BiConsumer
Once - BiConsumerOnce trait - Unified one-time bi-consumer interface
- FnBi
Consumer Once Ops - Extension trait providing one-time bi-consumer composition methods for closures