From 1817d86aece1599208ab10e7fd21ac828f63e45c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Olivier=20Mengu=C3=A9?= <dolmen@cpan.org>
Date: Mon, 16 Jun 2025 16:06:59 +0200
Subject: [PATCH] assert.CallerInfo: micro optimization by using LastIndexByte

Use strings.LastIndexByte instead of strings.Split to extract the
function name in CallerInfo. This reduces memory allocations.
---
 assert/assertions.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/assert/assertions.go b/assert/assertions.go
index 0514a154e..5e9cb6e5d 100644
--- a/assert/assertions.go
+++ b/assert/assertions.go
@@ -266,8 +266,8 @@ func CallerInfo() []string {
 			}
 
 			// Drop the package
-			segments := strings.Split(name, ".")
-			name = segments[len(segments)-1]
+			dotPos := strings.LastIndexByte(name, '.')
+			name = name[dotPos+1:]
 			if isTest(name, "Test") ||
 				isTest(name, "Benchmark") ||
 				isTest(name, "Example") {