Gives WorkflowAction access to props.

samples/containers/app-poetry/src/main/java/com/squareup/sample/poetryapp/PoemListWorkflow.kt

@@ -27,7 +27,7 @@ object PoemListWorkflow : StatelessWorkflow<List<Poem>, Int, PoemListRendering>(
 
   override fun render(
     props: List<Poem>,
-    context: RenderContext<Nothing, Int>
+    context: RenderContext<List<Poem>, Nothing, Int>
   ): PoemListRendering {
     // A sink that emits the given index as the result of this workflow.
     val sink = context.makeEventSink { index: Int -> setOutput(index) }

samples/containers/app-poetry/src/main/java/com/squareup/sample/poetryapp/PoemsBrowserWorkflow.kt

@@ -40,7 +40,7 @@ object PoemsBrowserWorkflow :
   override fun render(
     props: List<Poem>,
     state: SelectedPoem,
-    context: RenderContext<SelectedPoem, Nothing>
+    context: RenderContext<List<Poem>, SelectedPoem, Nothing>
   ): OverviewDetailScreen {
     val poems: OverviewDetailScreen =
       context.renderChild(PoemListWorkflow, props) { selected -> choosePoem(selected) }

samples/containers/hello-back-button/src/main/java/com/squareup/sample/hellobackbutton/AreYouSureWorkflow.kt

@@ -52,7 +52,7 @@ object AreYouSureWorkflow : StatefulWorkflow<Unit, State, Finished, AlertContain
   override fun render(
     props: Unit,
     state: State,
-    context: RenderContext<State, Finished>
+    context: RenderContext<Unit, State, Finished>
   ): AlertContainerScreen<*> {
     val ableBakerCharlie = context.renderChild(HelloBackButtonWorkflow, Unit) { noAction() }
 

samples/containers/hello-back-button/src/main/java/com/squareup/sample/hellobackbutton/HelloBackButtonWorkflow.kt

@@ -46,7 +46,7 @@ object HelloBackButtonWorkflow : StatefulWorkflow<Unit, State, Nothing, Renderin
   override fun render(
     props: Unit,
     state: State,
-    context: RenderContext<State, Nothing>
+    context: RenderContext<Unit, State, Nothing>
   ): Rendering {
     return Rendering(
         message = "$state",

samples/containers/poetry/src/main/java/com/squareup/sample/poetry/PoemWorkflow.kt

@@ -56,7 +56,7 @@ object PoemWorkflow : StatefulWorkflow<Poem, Int, ClosePoem, OverviewDetailScree
   override fun render(
     props: Poem,
     state: Int,
-    context: RenderContext<Int, ClosePoem>
+    context: RenderContext<Poem, Int, ClosePoem>
   ): OverviewDetailScreen {
     val previousStanzas: List<StanzaRendering> =
       if (state == -1) emptyList()
@@ -105,7 +105,7 @@ object PoemWorkflow : StatefulWorkflow<Poem, Int, ClosePoem, OverviewDetailScree
     sink.writeInt(state)
   }
 
-  private sealed class Action : WorkflowAction<Int, ClosePoem> {
+  private sealed class Action : WorkflowAction<Poem, Int, ClosePoem> {
     object ClearSelection : Action()
     object SelectPrevious : Action()
     object SelectNext : Action()

samples/containers/poetry/src/main/java/com/squareup/sample/poetry/StanzaListWorkflow.kt

@@ -29,7 +29,7 @@ object StanzaListWorkflow : StatelessWorkflow<Poem, Int, StanzaListRendering>()
 
   override fun render(
     props: Poem,
-    context: RenderContext<Nothing, Int>
+    context: RenderContext<Poem, Nothing, Int>
   ): StanzaListRendering {
     // A sink that emits the given index as the result of this workflow.
     val sink = context.makeEventSink { index: Int -> setOutput(index) }

samples/containers/poetry/src/main/java/com/squareup/sample/poetry/StanzaWorkflow.kt

@@ -41,7 +41,7 @@ object StanzaWorkflow : StatelessWorkflow<Props, Output, StanzaRendering>() {
 
   override fun render(
     props: Props,
-    context: RenderContext<Nothing, Output>
+    context: RenderContext<Props, Nothing, Output>
   ): StanzaRendering {
     with(props) {
       val sink: Sink<Output> = context.makeEventSink { setOutput(it) }

samples/dungeon/app/src/main/java/com/squareup/sample/dungeon/DungeonAppWorkflow.kt

@@ -54,7 +54,7 @@ class DungeonAppWorkflow(
   override fun render(
     props: Props,
     state: State,
-    context: RenderContext<State, Nothing>
+    context: RenderContext<Props, State, Nothing>
   ): AlertContainerScreen<Any> = when (state) {
 
     LoadingBoardList -> {

samples/dungeon/app/src/main/java/com/squareup/sample/dungeon/GameSessionWorkflow.kt

@@ -65,7 +65,7 @@ class GameSessionWorkflow(
   override fun render(
     props: Props,
     state: State,
-    context: RenderContext<State, Nothing>
+    context: RenderContext<Props, State, Nothing>
   ): AlertContainerScreen<Any> = when (state) {
 
     Loading -> {
@@ -98,8 +98,8 @@ class GameSessionWorkflow(
 
   override fun snapshotState(state: State): Snapshot = Snapshot.EMPTY
 
-  private class StartRunning(val board: Board) : WorkflowAction<State, Nothing> {
-    override fun Updater<State, Nothing>.apply() {
+  private class StartRunning(val board: Board) : WorkflowAction<Props, State, Nothing> {
+    override fun Updater<Props, State, Nothing>.apply() {
       state = Running(board)
     }
   }

samples/dungeon/app/src/main/java/com/squareup/sample/dungeon/TimeMachineAppWorkflow.kt

@@ -43,7 +43,7 @@ class TimeMachineAppWorkflow(
 
   override fun render(
     props: BoardPath,
-    context: RenderContext<Nothing, Nothing>
+    context: RenderContext<BoardPath, Nothing, Nothing>
   ): ShakeableTimeMachineRendering {
     val propsFactory = PropsFactory { recording ->
       Props(paused = !recording)

samples/dungeon/common/src/main/java/com/squareup/sample/dungeon/AiWorkflow.kt

@@ -67,7 +67,7 @@ class AiWorkflow(
   override fun render(
     props: ActorProps,
     state: State,
-    context: RenderContext<State, Nothing>
+    context: RenderContext<ActorProps, State, Nothing>
   ): ActorRendering {
     context.runningWorker(state.directionTicker) { updateDirection }
 

samples/dungeon/common/src/main/java/com/squareup/sample/dungeon/GameWorkflow.kt

@@ -105,7 +105,7 @@ class GameWorkflow(
   override fun render(
     props: Props,
     state: State,
-    context: RenderContext<State, Output>
+    context: RenderContext<Props, State, Output>
   ): GameRendering {
     val running = !props.paused && !state.game.isPlayerEaten
     // Stop actors from ticking if the game is paused or finished.

samples/dungeon/common/src/main/java/com/squareup/sample/dungeon/PlayerWorkflow.kt

@@ -35,16 +35,16 @@ class PlayerWorkflow(
   private val cellsPerSecond: Float = 15f
 ) : StatefulWorkflow<ActorProps, Movement, Nothing, Rendering>() {
 
-  sealed class Action : WorkflowAction<Movement, Nothing> {
+  sealed class Action : WorkflowAction<ActorProps, Movement, Nothing> {
 
     class StartMoving(private val direction: Direction) : Action() {
-      override fun Updater<Movement, Nothing>.apply() {
+      override fun Updater<ActorProps, Movement, Nothing>.apply() {
         state += direction
       }
     }
 
     class StopMoving(private val direction: Direction) : Action() {
-      override fun Updater<Movement, Nothing>.apply() {
+      override fun Updater<ActorProps, Movement, Nothing>.apply() {
         state -= direction
       }
     }
@@ -64,7 +64,7 @@ class PlayerWorkflow(
   override fun render(
     props: ActorProps,
     state: Movement,
-    context: RenderContext<Movement, Nothing>
+    context: RenderContext<ActorProps, Movement, Nothing>
   ): Rendering = Rendering(
       actorRendering = ActorRendering(avatar = avatar, movement = state),
       onStartMoving = { context.actionSink.send(StartMoving(it)) },

samples/dungeon/timemachine-shakeable/src/main/java/com/squareup/sample/timemachine/shakeable/ShakeableTimeMachineWorkflow.kt

@@ -69,7 +69,7 @@ class ShakeableTimeMachineWorkflow<in P, O : Any, out R : Any>(
   override fun render(
     props: PropsFactory<P>,
     state: State,
-    context: RenderContext<State, O>
+    context: RenderContext<PropsFactory<P>, State, O>
   ): ShakeableTimeMachineRendering {
     // Only listen to shakes when recording.
     if (state === Recording) context.runningWorker(shakeWorker) { onShake }
@@ -123,14 +123,14 @@ class ShakeableTimeMachineWorkflow<in P, O : Any, out R : Any>(
 
   private inner class SeekAction(
     private val newPosition: Duration
-  ) : WorkflowAction<State, O> {
-    override fun Updater<State, O>.apply() {
+  ) : WorkflowAction<PropsFactory<P>, State, O> {
+    override fun Updater<PropsFactory<P>, State, O>.apply() {
       state = PlayingBack(newPosition)
     }
   }
 
-  private inner class ResumeRecordingAction : WorkflowAction<State, O> {
-    override fun Updater<State, O>.apply() {
+  private inner class ResumeRecordingAction : WorkflowAction<PropsFactory<P>, State, O> {
+    override fun Updater<PropsFactory<P>, State, O>.apply() {
       state = Recording
     }
   }

samples/dungeon/timemachine/src/main/java/com/squareup/sample/timemachine/RecorderWorkflow.kt

@@ -92,7 +92,7 @@ internal class RecorderWorkflow<T>(
   override fun render(
     props: RecorderProps<T>,
     state: Recording<T>,
-    context: RenderContext<Recording<T>, Nothing>
+    context: RenderContext<RecorderProps<T>, Recording<T>, Nothing>
   ): TimeMachineRendering<T> {
     val value = when (props) {
       is RecordValue -> props.value

samples/dungeon/timemachine/src/main/java/com/squareup/sample/timemachine/TimeMachineWorkflow.kt

@@ -38,7 +38,7 @@ import kotlin.time.TimeSource
  *
  * @param delegateWorkflow The [Workflow] whose renderings to record. This workflow will be rendered
  * continuously as long as the `TimeMachineWorkflow` is being rendered.
- * @param clock The [Clock] to use to assign timestamps to recorded values.
+ * @param clock The [TimeSource] to use to assign timestamps to recorded values.
  */
 @ExperimentalTime
 class TimeMachineWorkflow<P, O : Any, out R>(
@@ -84,7 +84,7 @@ class TimeMachineWorkflow<P, O : Any, out R>(
 
   override fun render(
     props: TimeMachineProps<P>,
-    context: RenderContext<Nothing, O>
+    context: RenderContext<TimeMachineProps<P>, Nothing, O>
   ): TimeMachineRendering<R> {
     // Always render the delegate, even if in playback mode, to keep it alive.
     val delegateRendering =

samples/hello-terminal/hello-terminal-app/src/main/java/com/squareup/sample/helloterminal/BlinkingCursorWorkflow.kt

@@ -50,7 +50,7 @@ class BlinkingCursorWorkflow(
   override fun render(
     props: Unit,
     state: Boolean,
-    context: RenderContext<Boolean, Nothing>
+    context: RenderContext<Unit, Boolean, Nothing>
   ): String {
     context.runningWorker(intervalWorker) { setCursorShowing(it) }
     return if (state) cursorString else ""

samples/hello-terminal/hello-terminal-app/src/main/java/com/squareup/sample/helloterminal/HelloTerminalWorkflow.kt

@@ -30,7 +30,7 @@ import com.squareup.workflow.WorkflowAction
 import com.squareup.workflow.action
 import com.squareup.workflow.renderChild
 
-private typealias HelloTerminalAction = WorkflowAction<State, ExitCode>
+private typealias HelloTerminalAction = WorkflowAction<TerminalProps, State, ExitCode>
 
 class HelloTerminalWorkflow : TerminalWorkflow,
     StatefulWorkflow<TerminalProps, State, ExitCode, TerminalRendering>() {
@@ -52,7 +52,7 @@ class HelloTerminalWorkflow : TerminalWorkflow,
   override fun render(
     props: TerminalProps,
     state: State,
-    context: RenderContext<State, ExitCode>
+    context: RenderContext<TerminalProps, State, ExitCode>
   ): TerminalRendering {
     val (rows, columns) = props.size
     val header = """

samples/hello-terminal/todo-terminal-app/src/main/java/com/squareup/sample/hellotodo/EditTextWorkflow.kt

@@ -47,7 +47,7 @@ class EditTextWorkflow : StatefulWorkflow<EditTextProps, EditTextState, String,
   override fun render(
     props: EditTextProps,
     state: EditTextState,
-    context: RenderContext<EditTextState, String>
+    context: RenderContext<EditTextProps, EditTextState, String>
   ): String {
     context.runningWorker(props.terminalProps.keyStrokes) { key -> onKeystroke(props, key) }
 

samples/hello-terminal/todo-terminal-app/src/main/java/com/squareup/sample/hellotodo/TodoWorkflow.kt

@@ -32,7 +32,7 @@ import com.squareup.workflow.StatefulWorkflow
 import com.squareup.workflow.WorkflowAction
 import com.squareup.workflow.action
 
-private typealias TodoAction = WorkflowAction<TodoList, Nothing>
+private typealias TodoAction = WorkflowAction<TerminalProps, TodoList, Nothing>
 
 class TodoWorkflow : TerminalWorkflow,
     StatefulWorkflow<TerminalProps, TodoList, ExitCode, TerminalRendering>() {
@@ -75,14 +75,14 @@ class TodoWorkflow : TerminalWorkflow,
   override fun render(
     props: TerminalProps,
     state: TodoList,
-    context: RenderContext<TodoList, ExitCode>
+    context: RenderContext<TerminalProps, TodoList, ExitCode>
   ): TerminalRendering {
 
     context.runningWorker(props.keyStrokes) { onKeystroke(it) }
 
     return TerminalRendering(buildString {
       @Suppress("UNCHECKED_CAST")
-      appendln(state.renderTitle(props, context as RenderContext<TodoList, Nothing>))
+      appendln(state.renderTitle(props, context as RenderContext<TerminalProps, TodoList, Nothing>))
       appendln(renderSelection(state.titleSeparator, false))
       appendln(state.renderItems(props, context))
     })
@@ -117,7 +117,7 @@ private fun setLabel(
 
 private fun TodoList.renderTitle(
   props: TerminalProps,
-  context: RenderContext<TodoList, Nothing>
+  context: RenderContext<TerminalProps, TodoList, Nothing>
 ): String {
   val isSelected = focusedField == TITLE_FIELD_INDEX
   val titleString = if (isSelected) {
@@ -136,7 +136,7 @@ private val TodoList.titleSeparator get() = "–".repeat(title.length + 1)
 
 private fun TodoList.renderItems(
   props: TerminalProps,
-  context: RenderContext<TodoList, Nothing>
+  context: RenderContext<TerminalProps, TodoList, Nothing>
 ): String =
   items
       .mapIndexed { index, item ->

samples/hello-workflow-fragment/src/main/java/com/squareup/sample/helloworkflowfragment/HelloWorkflow.kt

@@ -45,7 +45,7 @@ object HelloWorkflow : StatefulWorkflow<Unit, State, Nothing, Rendering>() {
   override fun render(
     props: Unit,
     state: State,
-    context: RenderContext<State, Nothing>
+    context: RenderContext<Unit, State, Nothing>
   ): Rendering {
     return Rendering(
         message = state.name,

samples/hello-workflow/src/main/java/com/squareup/sample/helloworkflow/HelloWorkflow.kt

@@ -45,7 +45,7 @@ object HelloWorkflow : StatefulWorkflow<Unit, State, Nothing, Rendering>() {
   override fun render(
     props: Unit,
     state: State,
-    context: RenderContext<State, Nothing>
+    context: RenderContext<Unit, State, Nothing>
   ): Rendering {
     return Rendering(
         message = state.name,

samples/recyclerview/src/main/java/com/squareup/sample/recyclerview/AppWorkflow.kt

@@ -74,11 +74,11 @@ object AppWorkflow : StatefulWorkflow<Unit, State, Nothing, Rendering>() {
       get() = listOfNotNull(popup)
   }
 
-  private sealed class Action : WorkflowAction<State, Nothing> {
+  private sealed class Action : WorkflowAction<Unit, State, Nothing> {
     object ShowAddRowAction : Action()
     data class CommitNewRowAction(val index: Int) : Action()
 
-    override fun Updater<State, Nothing>.apply() {
+    override fun Updater<Unit, State, Nothing>.apply() {
       state = when (this@Action) {
         ShowAddRowAction -> ChooseNewRow(state.rows)
         is CommitNewRowAction -> ShowList(state.rows + allRowTypes[index])
@@ -94,7 +94,7 @@ object AppWorkflow : StatefulWorkflow<Unit, State, Nothing, Rendering>() {
   override fun render(
     props: Unit,
     state: State,
-    context: RenderContext<State, Nothing>
+    context: RenderContext<Unit, State, Nothing>
   ): Rendering {
     val listRendering = context.renderChild(EditableListWorkflow, Props(state.rows))
     val baseScreen = BaseScreen(

samples/recyclerview/src/main/java/com/squareup/sample/recyclerview/editablelistworkflow/EditableListWorkflow.kt

@@ -61,7 +61,7 @@ object EditableListWorkflow : StatefulWorkflow<Props, State, Nothing, Rendering>
   override fun render(
     props: Props,
     state: State,
-    context: RenderContext<State, Nothing>
+    context: RenderContext<Props, State, Nothing>
   ): Rendering {
     return Rendering(
         rowValues = state.rowValues,

samples/tictactoe/common/src/main/java/com/squareup/sample/authworkflow/AuthWorkflow.kt

@@ -69,7 +69,7 @@ sealed class AuthResult {
   object Canceled : AuthResult()
 }
 
-internal sealed class Action : WorkflowAction<AuthState, AuthResult> {
+internal sealed class Action : WorkflowAction<Unit, AuthState, AuthResult> {
   class SubmitLogin(
     val email: String,
     val password: String
@@ -91,7 +91,7 @@ internal sealed class Action : WorkflowAction<AuthState, AuthResult> {
     val response: AuthResponse
   ) : Action()
 
-  final override fun Updater<AuthState, AuthResult>.apply() {
+  final override fun Updater<Unit, AuthState, AuthResult>.apply() {
     when (this@Action) {
       is SubmitLogin -> {
         state = when {
@@ -146,7 +146,7 @@ class RealAuthWorkflow(private val authService: AuthService) : AuthWorkflow,
   override fun render(
     props: Unit,
     state: AuthState,
-    context: RenderContext<AuthState, AuthResult>
+    context: RenderContext<Unit, AuthState, AuthResult>
   ): BackStackScreen<Any> = when (state) {
     is LoginPrompt -> {
       BackStackScreen(

samples/tictactoe/common/src/main/java/com/squareup/sample/gameworkflow/RunGameWorkflow.kt

@@ -68,7 +68,7 @@ typealias RunGameScreen = AlertContainerScreen<PanelContainerScreen<Any, Any>>
  */
 typealias RunGameWorkflow = Workflow<Unit, RunGameResult, RunGameScreen>
 
-sealed class Action : WorkflowAction<RunGameState, RunGameResult> {
+sealed class Action : WorkflowAction<Unit, RunGameState, RunGameResult> {
   object CancelNewGame : Action()
 
   class StartGame(
@@ -99,7 +99,7 @@ sealed class Action : WorkflowAction<RunGameState, RunGameResult> {
   // signal that this workflow is too big, and should be refactored into something
   // like one workflow per screen.
 
-  override fun Updater<RunGameState, RunGameResult>.apply() {
+  override fun Updater<Unit, RunGameState, RunGameResult>.apply() {
 
     when (this@Action) {
       CancelNewGame -> setOutput(CanceledStart)
@@ -178,7 +178,7 @@ class RealRunGameWorkflow(
   override fun render(
     props: Unit,
     state: RunGameState,
-    context: RenderContext<RunGameState, RunGameResult>
+    context: RenderContext<Unit, RunGameState, RunGameResult>
   ): RunGameScreen = when (state) {
     is NewGame -> {
       val emptyGameScreen = GamePlayScreen()