From afce91219359654b44df29e6ec1b730e2a73a919 Mon Sep 17 00:00:00 2001
From: Ruben Bridgewater <ruben@bridgewater.de>
Date: Wed, 20 Mar 2019 15:48:59 +0100
Subject: assert: improve performance to instantiate errors
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This improves the performance for AssertionError by deactivating
duplicated stack frame creation.

PR-URL: https://github.com/nodejs/node/pull/26738
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
---
 lib/internal/assert/assertion_error.js | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'lib/internal/assert')

diff --git a/lib/internal/assert/assertion_error.js b/lib/internal/assert/assertion_error.js
index c8edf13eca..7c9bace378 100644
--- a/lib/internal/assert/assertion_error.js
+++ b/lib/internal/assert/assertion_error.js
@@ -300,6 +300,9 @@ class AssertionError extends Error {
       stackStartFn
     } = options;
 
+    const limit = Error.stackTraceLimit;
+    Error.stackTraceLimit = 0;
+
     if (message != null) {
       super(String(message));
     } else {
@@ -387,6 +390,8 @@ class AssertionError extends Error {
       }
     }
 
+    Error.stackTraceLimit = limit;
+
     this.generatedMessage = !message;
     Object.defineProperty(this, 'name', {
       value: 'AssertionError [ERR_ASSERTION]',
-- 
cgit v1.2.3