From abf684c94c124242bade74d61be7a05308b50f22 Mon Sep 17 00:00:00 2001
From: Momtchil Momtchev <momtchil@momtchev.com>
Date: Wed, 14 Oct 2020 22:17:35 +0200
Subject: [PATCH] errors: add a benchmark for hidestackframes

Add @puzpuzpuz's benchmark for the new
implementation of hideStackFrames

Refs: https://github.com/nodejs/node/issues/35386
Refs: https://github.com/nodejs/node/pull/35644
---
 benchmark/misc/hidestackframes.js | 50 +++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 benchmark/misc/hidestackframes.js

diff --git a/benchmark/misc/hidestackframes.js b/benchmark/misc/hidestackframes.js
new file mode 100644
index 00000000000000..58699f98d2ee5c
--- /dev/null
+++ b/benchmark/misc/hidestackframes.js
@@ -0,0 +1,50 @@
+'use strict';
+
+const common = require('../common.js');
+
+/* there should be no significant performance differences
+ * between the hideStackFrames version and the direct
+ * call version
+ */
+const bench = common.createBenchmark(main, {
+  type: ['hide-stackframes-throw', 'direct-call-throw',
+         'hide-stackframes-noerr', 'direct-call-noerr'],
+  n: [10e4]
+}, {
+  flags: ['--expose-internals']
+});
+
+function main({ n, type }) {
+  const {
+    hideStackFrames,
+    codes: {
+      ERR_INVALID_ARG_TYPE,
+    },
+  } = require('internal/errors');
+
+  const testfn = (value) => {
+    if (typeof value !== 'number') {
+      throw new ERR_INVALID_ARG_TYPE('Benchmark', 'number', value);
+    }
+  };
+
+  let fn = testfn;
+  if (type.startsWith('hide-stackframe'))
+    fn = hideStackFrames(testfn);
+  let value = 42;
+  if (type.endsWith('-throw'))
+    value = 'err';
+
+  bench.start();
+
+  for (let i = 0; i < n; i++) {
+    try {
+      fn(value);
+    // eslint-disable-next-line no-unused-vars
+    } catch (e) {
+      // No-op
+    }
+  }
+
+  bench.end(n);
+}