Module consumer 

Consumer Types

Provides implementations of non-mutating consumer interfaces for executing operations that neither modify their own state nor modify input values.

It is similar to the Fn(&T) trait in the standard library.

This module provides a unified Consumer trait and three concrete implementations based on different ownership models:

• BoxConsumer<T>: Box-based single ownership implementation
• ArcConsumer<T>: Arc-based thread-safe shared ownership implementation
• RcConsumer<T>: Rc-based single-threaded shared ownership implementation

Design Philosophy

Consumer uses Fn(&T) semantics: it is invoked through &self and receives shared references to input values.

Suitable for pure observation, logging, notification and other scenarios. Compared to StatefulConsumer, Consumer does not require wrapper-level interior mutability (Mutex/RefCell), making it more efficient and easier to share.

Author

Haixing Hu

Structs

ArcConditionalConsumer

ArcConditionalConsumer struct

ArcConsumer

ArcConsumer struct

BoxConditionalConsumer

BoxConditionalConsumer struct

BoxConsumer

BoxConsumer struct

RcConditionalConsumer

RcConditionalConsumer struct

RcConsumer

RcConsumer struct

Traits

Consumer

Consumer trait - Unified non-mutating consumer interface

FnConsumerOps

Extension trait providing non-mutating consumer composition methods for closures