Function createRuntimeCacheEntry

tools/decoration-runtime.ts:2263–2370

(
  snapshot: WaylandWindowSnapshot,
  composition: WindowCompositionFunction,
  context: WindowCompositionContext = RENDER_COMPOSITION_CONTEXT,
)

  forceFullReevaluation = false,
): {
  serialized?: unknown;
  treeUpdate: "full" | "patches" | "uniforms" | "none";
  uniformPatches?: NativeShaderUniformPatch[];
  transform: WindowTransform;
  managedWindow: ManagedWindowState;
  windowEffects: WindowEffectAssignment | null;
  dirtyNodeIds?: string[];
  managedWindowOnly?: boolean;
  nextPollInMs?: number;
} {
  let entry = cacheByWindowId.get(windowId);
  if (!entry) {
    if (!snapshot) {
      throw new Error(`missing cache entry for closing window ${windowId}`);
    }
    if (snapshot.id !== windowId) {
      throw new Error(
        `cached window snapshot id mismatch: ${windowId} != ${snapshot.id}`,
      );
    }
    debugHotReload("evaluate-cached-recreate-cache", {
      windowId,
      snapshot: snapshotForDebug(snapshot),
    });
    entry = createRuntimeCacheEntry(
      snapshot,
      composition,
      RENDER_COMPOSITION_CONTEXT,
    );
    cacheByWindowId.set(windowId, entry);
    openedWindowIds.add(windowId);
    dirtyWindowIds.delete(windowId);
    takeDirtyWindowNodeIds(windowId);
    takeDirtyWindowShaderUniformBindingKeys(windowId);
    takeManagedWindowOnlyDirty(windowId);
    events.emitFocus(entry.cache.window, snapshot.isFocused);
    if (!firstCommittedWindowIds.has(windowId)) {
      firstCommittedWindowIds.add(windowId);
      debugHotReload("evaluate-cached-recreate-first-commit", {
        windowId,
        snapshot: snapshotForDebug(snapshot),
      });
      events.emitFirstCommit(entry.cache.window);
    }
  }

  let updated: ReturnType<CompositionEvaluationCache["update"]> = null;
  if (snapshot !== undefined) {
    if (snapshot.id !== windowId) {
      throw new Error(
        `cached window snapshot id mismatch: ${windowId} != ${snapshot.id}`,
      );
    }
    debugSSD("runtime-evaluate-cached-update-snapshot", {
      windowId,
      snapshot: snapshotForDebug(snapshot),
    });
    // Mirror the focus-diff handling of the other snapshot-update paths