From 56c39838859a6c5b3cd15f2f676bbf304f112b3e Mon Sep 17 00:00:00 2001
From: Chocobo1 <Chocobo1@users.noreply.github.com>
Date: Sat, 12 Feb 2022 00:53:34 +0800
Subject: [PATCH] Improve `Path` constructor performance

---
 src/base/path.cpp | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/src/base/path.cpp b/src/base/path.cpp
index 89e3d3b0e..8f72c97ba 100644
--- a/src/base/path.cpp
+++ b/src/base/path.cpp
@@ -29,6 +29,8 @@
 
 #include "path.h"
 
+#include <algorithm>
+
 #include <QDataStream>
 #include <QDir>
 #include <QFileInfo>
@@ -44,8 +46,20 @@ const Qt::CaseSensitivity CASE_SENSITIVITY = Qt::CaseSensitive;
 
 const int PATHLIST_TYPEID = qRegisterMetaType<PathList>("PathList");
 
+namespace
+{
+    QString cleanPath(const QString &path)
+    {
+        const bool hasSeparator = std::any_of(path.cbegin(), path.cend(), [](const QChar c)
+        {
+            return (c == u'/') || (c == u'\\');
+        });
+        return hasSeparator ? QDir::cleanPath(path) : path;
+    }
+}
+
 Path::Path(const QString &pathStr)
-    : m_pathStr {QDir::cleanPath(pathStr)}
+    : m_pathStr {cleanPath(pathStr)}
 {
 }