Improve path splitting speed

2 files changed, 4 insertions, 12 deletions

diff --git a/src/core/file_sys/vfs.cpp b/src/core/file_sys/vfs.cpp
index 639842401..b7105c8ff 100644
--- a/src/core/file_sys/vfs.cpp
+++ b/src/core/file_sys/vfs.cpp
@@ -201,8 +201,6 @@ std::string VfsFile::GetFullPath() const {
 
 VirtualFile VfsDirectory::GetFileRelative(std::string_view path) const {
     auto vec = Common::FS::SplitPathComponents(path);
-    vec.erase(std::remove_if(vec.begin(), vec.end(), [](const auto& str) { return str.empty(); }),
-              vec.end());
     if (vec.empty()) {
         return nullptr;
     }
@@ -237,8 +235,6 @@ VirtualFile VfsDirectory::GetFileAbsolute(std::string_view path) const {
 
 VirtualDir VfsDirectory::GetDirectoryRelative(std::string_view path) const {
     auto vec = Common::FS::SplitPathComponents(path);
-    vec.erase(std::remove_if(vec.begin(), vec.end(), [](const auto& str) { return str.empty(); }),
-              vec.end());
     if (vec.empty()) {
         // TODO(DarkLordZach): Return this directory if path is '/' or similar. Can't currently
         // because of const-ness
@@ -303,8 +299,6 @@ std::size_t VfsDirectory::GetSize() const {
 
 VirtualFile VfsDirectory::CreateFileRelative(std::string_view path) {
     auto vec = Common::FS::SplitPathComponents(path);
-    vec.erase(std::remove_if(vec.begin(), vec.end(), [](const auto& str) { return str.empty(); }),
-              vec.end());
     if (vec.empty()) {
         return nullptr;
     }
@@ -334,8 +328,6 @@ VirtualFile VfsDirectory::CreateFileAbsolute(std::string_view path) {
 
 VirtualDir VfsDirectory::CreateDirectoryRelative(std::string_view path) {
     auto vec = Common::FS::SplitPathComponents(path);
-    vec.erase(std::remove_if(vec.begin(), vec.end(), [](const auto& str) { return str.empty(); }),
-              vec.end());
     if (vec.empty()) {
         return nullptr;
     }
diff --git a/src/core/file_sys/vfs_real.cpp b/src/core/file_sys/vfs_real.cpp
index 1c706e4d8..cd9b79786 100644
--- a/src/core/file_sys/vfs_real.cpp
+++ b/src/core/file_sys/vfs_real.cpp
@@ -268,7 +268,7 @@ void RealVfsFilesystem::RemoveReferenceFromListLocked(FileReference& reference)
 RealVfsFile::RealVfsFile(RealVfsFilesystem& base_, std::unique_ptr<FileReference> reference_,
                          const std::string& path_, Mode perms_, std::optional<u64> size_)
     : base(base_), reference(std::move(reference_)), path(path_),
-      parent_path(FS::GetParentPath(path_)), path_components(FS::SplitPathComponents(path_)),
+      parent_path(FS::GetParentPath(path_)), path_components(FS::SplitPathComponentsCopy(path_)),
       size(size_), perms(perms_) {}
 
 RealVfsFile::~RealVfsFile() {
@@ -276,7 +276,7 @@ RealVfsFile::~RealVfsFile() {
 }
 
 std::string RealVfsFile::GetName() const {
-    return path_components.back();
+    return path_components.empty() ? "" : std::string(path_components.back());
 }
 
 std::size_t RealVfsFile::GetSize() const {
@@ -375,7 +375,7 @@ std::vector<VirtualDir> RealVfsDirectory::IterateEntries<RealVfsDirectory, VfsDi
 
 RealVfsDirectory::RealVfsDirectory(RealVfsFilesystem& base_, const std::string& path_, Mode perms_)
     : base(base_), path(FS::RemoveTrailingSlash(path_)), parent_path(FS::GetParentPath(path)),
-      path_components(FS::SplitPathComponents(path)), perms(perms_) {
+      path_components(FS::SplitPathComponentsCopy(path)), perms(perms_) {
     if (!FS::Exists(path) && True(perms & Mode::Write)) {
         void(FS::CreateDirs(path));
     }
@@ -464,7 +464,7 @@ bool RealVfsDirectory::IsReadable() const {
 }
 
 std::string RealVfsDirectory::GetName() const {
-    return path_components.back();
+    return path_components.empty() ? "" : std::string(path_components.back());
 }
 
 VirtualDir RealVfsDirectory::GetParentDirectory() const {