Rebuild core around render graph AST and shared memory

Amp-Thread-ID: https://ampcode.com/threads/T-01a01380-b478-77d0-84a0-102880a5c5ae Co-authored-by: Heaust Azure <heaust.azure@gmail.com>
2026-08-18 11:58:31 +00:00
parent a23ef37b4d
commit 0e44917f9e
101 changed files with 4409 additions and 2610 deletions
@@ -0,0 +1,42 @@
+/** Allocates an example-local bounded FXNode ID, reserving candidates for this session. */
+export function createNodeIdAllocator(randomUUID = () => crypto.randomUUID()) {
+  const reserved = new Set();
+  return (existingIds) => {
+    const existing = new Set(existingIds);
+    for (let attempt = 0; attempt < 64; attempt++) {
+      const id = `node_${randomUUID().replaceAll("-", "")}`;
+      if (/^node_[A-Za-z0-9_]+$/.test(id) && id.length <= 128 && !existing.has(id) && !reserved.has(id)) {
+        reserved.add(id);
+        return id;
+      }
+    }
+    throw new Error("Unable to allocate a unique node ID");
+  };
+}
+
+/** Adds exactly one node when the request still targets the loaded composition. */
+export async function spawnRequestedNode(root, view, request, typeId, allocateId, isCurrent = () => true) {
+  const current = () =>
+    isCurrent() && request.compositionRevision === view.getHostSnapshot().compositionRevision;
+  if (!typeId || !current()) return false;
+  let state;
+  try {
+    state = await root.getState();
+  } catch (error) {
+    if (!isCurrent()) return false;
+    throw error;
+  }
+  if (!current()) return false;
+  const nodeId = allocateId(state.nodes.map((node) => node.id));
+  if (!current()) return false;
+  try {
+    await view.addNode(
+      { typeId, nodeId, viewPosition: request.viewPosition },
+      { expectedVersion: state.version },
+    );
+  } catch (error) {
+    if (!isCurrent()) return false;
+    throw error;
+  }
+  return true;
+}