源码快照 @ 2026-09-01 (source-only, 剔除非源码素材)

packages/agent/gui/test/reactRenderLoopConsoleTrap.ts

@@ -0,0 +1,49 @@
+type ConsoleLike = {
+  error: (...args: unknown[]) => void;
+};
+
+const reactRenderLoopErrorPattern =
+  /maximum update depth exceeded|too many re-renders|react limits the number of renders|react limits the number of nested updates/iu;
+
+export function installReactRenderLoopConsoleTrap({
+  console: targetConsole
+}: {
+  console: ConsoleLike;
+}): () => void {
+  const originalError = targetConsole.error;
+
+  targetConsole.error = (...args: unknown[]) => {
+    originalError(...args);
+
+    const message = args.map(formatConsoleArg).join(" ");
+    if (!reactRenderLoopErrorPattern.test(message)) {
+      return;
+    }
+
+    throw new Error(
+      [
+        "React render loop detected from console.error.",
+        "The original React diagnostic was:",
+        message
+      ].join("\n")
+    );
+  };
+
+  return () => {
+    targetConsole.error = originalError;
+  };
+}
+
+function formatConsoleArg(arg: unknown): string {
+  if (arg instanceof Error) {
+    return `${arg.name}: ${arg.message}\n${arg.stack ?? ""}`;
+  }
+  if (typeof arg === "string") {
+    return arg;
+  }
+  try {
+    return JSON.stringify(arg);
+  } catch {
+    return String(arg);
+  }
+}