From 021fdf06bb215a6736c45714ce760850c7f81de6 Mon Sep 17 00:00:00 2001
From: Tony Garnock-Jones <tonyg@leastfixedpoint.com>
Date: Sun, 28 May 2023 11:38:05 +0200
Subject: [PATCH] Remove unneeded spawningFacet field; mark StopOnRetract
 entities

---
 packages/core/src/runtime/actor.ts | 5 ++++-
 packages/core/src/runtime/task.ts  | 2 +-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/packages/core/src/runtime/actor.ts b/packages/core/src/runtime/actor.ts
index 14062b1..f781193 100644
--- a/packages/core/src/runtime/actor.ts
+++ b/packages/core/src/runtime/actor.ts
@@ -249,10 +249,13 @@ export class Facet {
     }
 }
 
+export const STOP_ON_RETRACT = Symbol('stop-on-retract'); // NB. NOT A GLOBAL SYMBOL
+
 export class StopOnRetract implements Partial<Entity> {
     retract(_handle: Handle): void {
         Turn.active.stop();
     }
+    data = STOP_ON_RETRACT;
 }
 
 export function _sync_impl(e: Partial<Entity>, peer: Ref): void {
@@ -359,7 +362,7 @@ export class Turn {
                              describe() { return { type: 'bootActor', detail }; },
                          });
                      },
-                     { type: 'spawnActor', detail, spawningFacet, initialAssertions });
+                     { type: 'spawnActor', detail, initialAssertions });
         return newActor;
     }
 
diff --git a/packages/core/src/runtime/task.ts b/packages/core/src/runtime/task.ts
index 5fd1cfb..15fb068 100644
--- a/packages/core/src/runtime/task.ts
+++ b/packages/core/src/runtime/task.ts
@@ -21,7 +21,7 @@ export type TaskDescription =
 export type TaskAction = { targetFacet: Facet, action: ActionDescription };
 
 export type ActionDescription =
-    | { type: 'spawnActor', detail?: AnyValue, spawningFacet: Facet, initialAssertions: IdentitySet<Handle> }
+    | { type: 'spawnActor', detail?: AnyValue, initialAssertions: IdentitySet<Handle> }
     | { type: 'stopActor', err?: AnyValue }
     | { type: 'inertCheck' }