Add RuntimeConfig through to WorkflowSession in Interceptor

workflow-runtime/api/workflow-runtime.api

@@ -101,6 +101,7 @@ public abstract interface class com/squareup/workflow1/WorkflowInterceptor$Workf
 	public abstract fun getIdentifier ()Lcom/squareup/workflow1/WorkflowIdentifier;
 	public abstract fun getParent ()Lcom/squareup/workflow1/WorkflowInterceptor$WorkflowSession;
 	public abstract fun getRenderKey ()Ljava/lang/String;
+	public abstract fun getRuntimeConfig ()Ljava/util/Set;
 	public abstract fun getSessionId ()J
 }
 

workflow-runtime/src/commonMain/kotlin/com/squareup/workflow1/WorkflowInterceptor.kt

@@ -150,6 +150,9 @@ public interface WorkflowInterceptor {
 
     /** The parent [WorkflowSession] of this workflow, or null if this is the root workflow. */
     public val parent: WorkflowSession?
+
+    /** The [RuntimeConfig] of the runtime this session is executing in. */
+    public val runtimeConfig: RuntimeConfig
   }
 
   /**

workflow-runtime/src/commonMain/kotlin/com/squareup/workflow1/internal/SubtreeManager.kt

@@ -3,6 +3,7 @@ package com.squareup.workflow1.internal
 import com.squareup.workflow1.ActionApplied
 import com.squareup.workflow1.ActionProcessingResult
 import com.squareup.workflow1.NoopWorkflowInterceptor
+import com.squareup.workflow1.RuntimeConfig
 import com.squareup.workflow1.TreeSnapshot
 import com.squareup.workflow1.Workflow
 import com.squareup.workflow1.WorkflowAction
@@ -89,6 +90,7 @@ internal class SubtreeManager<PropsT, StateT, OutputT>(
     action: WorkflowAction<PropsT, StateT, OutputT>,
     childResult: ActionApplied<*>
   ) -> ActionProcessingResult,
+  private val runtimeConfig: RuntimeConfig,
   private val workflowSession: WorkflowSession? = null,
   private val interceptor: WorkflowInterceptor = NoopWorkflowInterceptor,
   private val idCounter: IdCounter? = null
@@ -180,14 +182,15 @@ internal class SubtreeManager<PropsT, StateT, OutputT>(
     val childTreeSnapshots = snapshotCache?.get(id)
 
     val workflowNode = WorkflowNode(
-      id,
-      child.asStatefulWorkflow(),
-      initialProps,
-      childTreeSnapshots,
-      contextForChildren,
-      ::acceptChildActionResult,
-      workflowSession,
-      interceptor,
+      id = id,
+      workflow = child.asStatefulWorkflow(),
+      initialProps = initialProps,
+      snapshot = childTreeSnapshots,
+      baseContext = contextForChildren,
+      runtimeConfig = runtimeConfig,
+      emitAppliedActionToParent = ::acceptChildActionResult,
+      parent = workflowSession,
+      interceptor = interceptor,
       idCounter = idCounter
     )
     return WorkflowChildNode(child, handler, workflowNode)

workflow-runtime/src/commonMain/kotlin/com/squareup/workflow1/internal/WorkflowNode.kt

@@ -4,6 +4,8 @@ import com.squareup.workflow1.ActionApplied
 import com.squareup.workflow1.ActionProcessingResult
 import com.squareup.workflow1.NoopWorkflowInterceptor
 import com.squareup.workflow1.RenderContext
+import com.squareup.workflow1.RuntimeConfig
+import com.squareup.workflow1.RuntimeConfigOptions
 import com.squareup.workflow1.StatefulWorkflow
 import com.squareup.workflow1.TreeSnapshot
 import com.squareup.workflow1.Workflow
@@ -44,6 +46,8 @@ internal class WorkflowNode<PropsT, StateT, OutputT, RenderingT>(
   initialProps: PropsT,
   snapshot: TreeSnapshot?,
   baseContext: CoroutineContext,
+  // Providing default value so we don't need to specify in test.
+  override val runtimeConfig: RuntimeConfig = RuntimeConfigOptions.DEFAULT_CONFIG,
   private val emitAppliedActionToParent: (ActionApplied<OutputT>) -> ActionProcessingResult =
     { it },
   override val parent: WorkflowSession? = null,
@@ -66,6 +70,7 @@ internal class WorkflowNode<PropsT, StateT, OutputT, RenderingT>(
     snapshotCache = snapshot?.childTreeSnapshots,
     contextForChildren = coroutineContext,
     emitActionToParent = ::applyAction,
+    runtimeConfig = runtimeConfig,
     workflowSession = this,
     interceptor = interceptor,
     idCounter = idCounter

workflow-runtime/src/commonMain/kotlin/com/squareup/workflow1/internal/WorkflowRunner.kt

@@ -54,6 +54,7 @@ internal class WorkflowRunner<PropsT, OutputT, RenderingT>(
     initialProps = currentProps,
     snapshot = snapshot,
     baseContext = scope.coroutineContext,
+    runtimeConfig = runtimeConfig,
     interceptor = interceptor,
     idCounter = idCounter
   )

workflow-runtime/src/commonTest/kotlin/com/squareup/workflow1/SimpleLoggingWorkflowInterceptorTest.kt

@@ -82,6 +82,7 @@ internal class SimpleLoggingWorkflowInterceptorTest {
     override val renderKey: String get() = "key"
     override val sessionId: Long get() = 42
     override val parent: WorkflowSession? get() = null
+    override val runtimeConfig: RuntimeConfig = RuntimeConfigOptions.DEFAULT_CONFIG
   }
 
   private object FakeRenderContext : BaseRenderContext<Unit, Unit, Unit> {

workflow-runtime/src/commonTest/kotlin/com/squareup/workflow1/WorkflowInterceptorTest.kt

@@ -216,6 +216,7 @@ internal class WorkflowInterceptorTest {
       override val renderKey: String = ""
       override val sessionId: Long = 0
       override val parent: WorkflowSession? = null
+      override val runtimeConfig: RuntimeConfig = RuntimeConfigOptions.DEFAULT_CONFIG
     }
 
   private object TestWorkflow : StatefulWorkflow<String, String, String, String>() {

workflow-runtime/src/commonTest/kotlin/com/squareup/workflow1/internal/ChainedWorkflowInterceptorTest.kt

@@ -4,6 +4,8 @@ package com.squareup.workflow1.internal
 
 import com.squareup.workflow1.BaseRenderContext
 import com.squareup.workflow1.NoopWorkflowInterceptor
+import com.squareup.workflow1.RuntimeConfig
+import com.squareup.workflow1.RuntimeConfigOptions
 import com.squareup.workflow1.Sink
 import com.squareup.workflow1.Snapshot
 import com.squareup.workflow1.Workflow
@@ -331,5 +333,6 @@ internal class ChainedWorkflowInterceptorTest {
     override val renderKey: String = ""
     override val sessionId: Long = 0
     override val parent: WorkflowSession? = null
+    override val runtimeConfig: RuntimeConfig = RuntimeConfigOptions.DEFAULT_CONFIG
   }
 }

workflow-runtime/src/commonTest/kotlin/com/squareup/workflow1/internal/SubtreeManagerTest.kt

@@ -4,6 +4,7 @@ package com.squareup.workflow1.internal
 
 import com.squareup.workflow1.ActionApplied
 import com.squareup.workflow1.ActionProcessingResult
+import com.squareup.workflow1.RuntimeConfigOptions
 import com.squareup.workflow1.Snapshot
 import com.squareup.workflow1.StatefulWorkflow
 import com.squareup.workflow1.TreeSnapshot
@@ -307,7 +308,12 @@ internal class SubtreeManagerTest {
 
   private fun <P, S, O : Any> subtreeManagerForTest(
     snapshotCache: Map<WorkflowNodeId, TreeSnapshot>? = null
-  ) = SubtreeManager<P, S, O>(snapshotCache, context, emitActionToParent = { action, childResult ->
-    ActionApplied(WorkflowOutput(action), childResult.stateChanged)
-  })
+  ) = SubtreeManager<P, S, O>(
+    snapshotCache = snapshotCache,
+    contextForChildren = context,
+    runtimeConfig = RuntimeConfigOptions.DEFAULT_CONFIG,
+    emitActionToParent = { action, childResult ->
+      ActionApplied(WorkflowOutput(action), childResult.stateChanged)
+    }
+  )
 }

workflow-runtime/src/commonTest/kotlin/com/squareup/workflow1/internal/WorkflowNodeTest.kt

@@ -5,12 +5,16 @@ package com.squareup.workflow1.internal
 
 import com.squareup.workflow1.ActionApplied
 import com.squareup.workflow1.BaseRenderContext
+import com.squareup.workflow1.RuntimeConfig
+import com.squareup.workflow1.RuntimeConfigOptions
+import com.squareup.workflow1.RuntimeConfigOptions.RENDER_ONLY_WHEN_STATE_CHANGES
 import com.squareup.workflow1.Sink
 import com.squareup.workflow1.Snapshot
 import com.squareup.workflow1.StatefulWorkflow
 import com.squareup.workflow1.TreeSnapshot
 import com.squareup.workflow1.Workflow
 import com.squareup.workflow1.WorkflowAction
+import com.squareup.workflow1.WorkflowExperimentalRuntime
 import com.squareup.workflow1.WorkflowIdentifier
 import com.squareup.workflow1.WorkflowInterceptor
 import com.squareup.workflow1.WorkflowInterceptor.RenderContextInterceptor
@@ -818,6 +822,49 @@ internal class WorkflowNodeTest {
     assertEquals(0, interceptedSession.sessionId)
     assertEquals("foo", interceptedSession.renderKey)
     assertEquals(42, interceptedSession.parent!!.sessionId)
+    assertEquals(RuntimeConfigOptions.DEFAULT_CONFIG, interceptedSession.runtimeConfig)
+
+    val cause = CancellationException("stop")
+    node.cancel(cause)
+    assertSame(cause, cancellationException)
+  }
+
+  @OptIn(WorkflowExperimentalRuntime::class)
+  @Test
+  fun interceptor_handles_scope_start_and_cancellation_with_config() {
+    lateinit var interceptedScope: CoroutineScope
+    lateinit var interceptedSession: WorkflowSession
+    lateinit var cancellationException: Throwable
+    val interceptor = object : WorkflowInterceptor {
+      override fun onSessionStarted(
+        workflowScope: CoroutineScope,
+        session: WorkflowSession
+      ) {
+        interceptedScope = workflowScope
+        interceptedSession = session
+        workflowScope.coroutineContext[Job]!!.invokeOnCompletion {
+          cancellationException = it!!
+        }
+      }
+    }
+    val workflow = Workflow.rendering(Unit)
+    val node = WorkflowNode(
+      id = workflow.id(key = "foo"),
+      workflow = workflow.asStatefulWorkflow(),
+      initialProps = Unit,
+      snapshot = null,
+      interceptor = interceptor,
+      baseContext = Unconfined,
+      runtimeConfig = setOf(RENDER_ONLY_WHEN_STATE_CHANGES),
+      parent = TestSession(42)
+    )
+
+    assertSame(node.coroutineContext, interceptedScope.coroutineContext)
+    assertEquals(workflow.identifier, interceptedSession.identifier)
+    assertEquals(0, interceptedSession.sessionId)
+    assertEquals("foo", interceptedSession.renderKey)
+    assertEquals(42, interceptedSession.parent!!.sessionId)
+    assertEquals(setOf(RENDER_ONLY_WHEN_STATE_CHANGES), interceptedSession.runtimeConfig)
 
     val cause = CancellationException("stop")
     node.cancel(cause)
@@ -1292,5 +1339,6 @@ internal class WorkflowNodeTest {
     override val identifier: WorkflowIdentifier = Workflow.rendering(Unit).identifier
     override val renderKey: String = ""
     override val parent: WorkflowSession? = null
+    override val runtimeConfig: RuntimeConfig = RuntimeConfigOptions.DEFAULT_CONFIG
   }
 }