1 files changed, 31 insertions, 0 deletions
diff --git a/bench/emitter/implementations.mjs b/bench/emitter/implementations.mjs
new file mode 100644
index 000000000..2050ac38e
--- /dev/null
+++ b/bench/emitter/implementations.mjs
@@ -0,0 +1,31 @@
+import EventEmitter3 from "eventemitter3";
+import { group } from "mitata";
+import EventEmitterNative from "node:events";
+
+export const implementations = [
+  {
+    EventEmitter: EventEmitterNative,
+    name: process.isBun ? (EventEmitterNative.init ? "bun" : "C++") : "node:events",
+    monkey: true,
+  },
+  // { EventEmitter: EventEmitter3, name: "EventEmitter3" },
+].filter(Boolean);
+
+for (const impl of implementations) {
+  impl.EventEmitter?.setMaxListeners?.(Infinity);
+}
+
+export function groupForEmitter(name, cb) {
+  if (implementations.length === 1) {
+    return cb({
+      ...implementations[0],
+      name: `${name}: ${implementations[0].name}`,
+    });
+  } else {
+    return group(name, () => {
+      for (let impl of implementations) {
+        cb(impl);
+      }
+    });
+  }
+}