[feat]: add primary associated types to more protocols (#188)

- adds `<Rendering, Output>` PAT to `AnyWorkflowConvertible`
- adds `<WorkflowType>` PAT to `WorkflowAction`
- adds `<Output>` to the various definitions of `Worker`

Author: jamieQ

Workflow/Sources/AnyWorkflowConvertible.swift

@@ -16,7 +16,7 @@
 
 /// Conforming types can be converted into `AnyWorkflow` values, allowing them to participate
 /// in a workflow hierarchy.
-public protocol AnyWorkflowConvertible {
+public protocol AnyWorkflowConvertible<Rendering, Output> {
     /// The rendering type of this type's `AnyWorkflow` representation
     associatedtype Rendering
 

Workflow/Sources/WorkflowAction.swift

@@ -16,7 +16,7 @@
 
 /// Conforming types represent an action that advances a workflow. When applied, an action emits the next
 /// state and / or output for the workflow.
-public protocol WorkflowAction {
+public protocol WorkflowAction<WorkflowType> {
     /// The type of workflow that this action can be applied to.
     associatedtype WorkflowType: Workflow
 

WorkflowCombine/Sources/Worker.swift

@@ -28,7 +28,7 @@ import Workflow
 /// If there is, and if the workers are 'equivalent', the context leaves the existing worker running.
 ///
 /// If there is not an existing worker of this type, the context will kick off the new worker (via `run`).
-public protocol Worker: AnyWorkflowConvertible where Rendering == Void {
+public protocol Worker<Output>: AnyWorkflowConvertible where Rendering == Void {
     /// The type of output events returned by this worker.
     associatedtype Output
     associatedtype WorkerPublisher: Publisher where

WorkflowConcurrency/Sources/Worker.swift

@@ -25,7 +25,7 @@ import Workflow
 /// If there is, and if the workers are 'equivalent', the context leaves the existing worker running.
 ///
 /// If there is not an existing worker of this type, the context will kick off the new worker (via `run`).
-public protocol Worker: AnyWorkflowConvertible where Rendering == Void {
+public protocol Worker<Output>: AnyWorkflowConvertible where Rendering == Void {
     /// The type of output events returned by this worker.
     associatedtype Output
 

WorkflowReactiveSwift/Sources/Worker.swift

@@ -26,7 +26,7 @@ import Workflow
 /// If there is, and if the workers are 'equivalent', the context leaves the existing worker running.
 ///
 /// If there is not an existing worker of this type, the context will kick off the new worker (via `run`).
-public protocol Worker: AnyWorkflowConvertible where Rendering == Void {
+public protocol Worker<Output>: AnyWorkflowConvertible where Rendering == Void {
     /// The type of output events returned by this worker.
     associatedtype Output
 

WorkflowRxSwift/Sources/Worker.swift

@@ -26,7 +26,7 @@ import Workflow
 /// If there is, and if the workers are 'equivalent', the context leaves the existing worker running.
 ///
 /// If there is not an existing worker of this type, the context will kick off the new worker (via `run`).
-public protocol Worker: AnyWorkflowConvertible where Rendering == Void {
+public protocol Worker<Output>: AnyWorkflowConvertible where Rendering == Void {
     /// The type of output events returned by this worker.
     associatedtype Output