macro_operator_derive

Helper macro to implement a few traits required for an operator.

Traits you still have to implement to get an operator

• Operator or ComposableOperator

Traits Implemented

• WithPrimaryCategory: Sets the associated type to PrimaryCategoryOperator
• ObserverInput: Sets the associated type In to the value of the #[rx_in(...)] attribute, or to Never (Infallible) if missing. Also sets the associated InError type to the value of the #[rx_in_error(...)] attribute, or to Never if missing.
• ObservableOutput: Sets the associated type Out to the value of the #[rx_out(...)] attribute, or to Never (Infallible) if missing. Also sets the associated OutError type to the value of the #[rx_out_error(...)] attribute, or to Never if missing.

Attributes

All attributes are prefixed with rx_ for easy auto-complete access.

• #[rx_in(...)] (optional, default: Never): Defines the input type of the operator
• #[rx_in_error(...)] (optional, default: Never): Defines the input error type of the operator
• #[rx_out(...)] (optional, default: Never): Defines the output type of the operator; usually it's the same as the input type
• #[rx_out_error(...)] (optional, default: Never): Defines the output error type of the operator; usually it's the same as the input error type

See Also

• RxExecutor - Derive macro for Executors.
• RxObservable - Derive macro for Observables.
• RxObserver - Derive macro for RxObservers.
• RxScheduler - Derive macro for Schedulers.
• RxSubject - Derive macro for Subjects.
• RxSubscriber - Derive macro for Subscribers.
• RxSubscription - Derive macro for Subscriptions.
• RxWork - Derive macro for schedulable work.

Expanding the proc macro

In case you want to inspect the output of the proc macro.

If you haven't installed cargo-expand yet, install it first:

cargo install cargo-expand

Then expand the macro output:

cargo expand -p rx_core_observable_interval