From 8b8baf5ca92c137d6afd1512508f077fc307f3bd Mon Sep 17 00:00:00 2001
From: jazelly <xzha4350@gmail.com>
Date: Sun, 1 Sep 2024 10:09:05 +0930
Subject: [PATCH] fix: let filesystem api to handle polymorphism

---
 src/node_file.cc | 31 ++++++++++++++++++++++++++++---
 src/util.h       | 18 ------------------
 2 files changed, 28 insertions(+), 21 deletions(-)

diff --git a/src/node_file.cc b/src/node_file.cc
index acf0ed2d8e83bf..ed23f0f17018bf 100644
--- a/src/node_file.cc
+++ b/src/node_file.cc
@@ -3130,15 +3130,40 @@ static void CpSyncCheckPaths(const FunctionCallbackInfo<Value>& args) {
   ToNamespacedPath(env, &src);
   THROW_IF_INSUFFICIENT_PERMISSIONS(
       env, permission::PermissionScope::kFileSystemRead, src.ToStringView());
-  auto src_path = std::filesystem::path(src.ToWString());
+#ifdef _WIN32
+  auto src_size_needed = MultiByteToWideChar(
+      CP_UTF8, 0, src.out(), static_cast<int>(src.length()), nullptr, 0);
+  std::wstring src_wstr(src_size_needed, 0);
+  MultiByteToWideChar(CP_UTF8,
+                      0,
+                      src.out(),
+                      static_cast<int>(src.length()),
+                      &src_wstr[0],
+                      src_size_needed);
+  auto src_path = std::filesystem::path(src_wstr);
+#else
+  auto src_path = std::filesystem::path(src.ToStringView());
+#endif
 
   BufferValue dest(isolate, args[1]);
   CHECK_NOT_NULL(*dest);
   ToNamespacedPath(env, &dest);
   THROW_IF_INSUFFICIENT_PERMISSIONS(
       env, permission::PermissionScope::kFileSystemWrite, dest.ToStringView());
-  auto dest_path = std::filesystem::path(dest.ToWString());
-
+#ifdef _WIN32
+  auto dest_size_needed = MultiByteToWideChar(
+      CP_UTF8, 0, dest.out(), static_cast<int>(dest.length()), nullptr, 0);
+  std::wstring dest_wstr(dest_size_needed, 0);
+  MultiByteToWideChar(CP_UTF8,
+                      0,
+                      dest.out(),
+                      static_cast<int>(dest.length()),
+                      &dest_wstr[0],
+                      dest_size_needed);
+  auto dest_path = std::filesystem::path(dest_wstr);
+#else
+  auto dest_path = std::filesystem::path(dest.ToStringView());
+#endif
   bool dereference = args[2]->IsTrue();
   bool recursive = args[3]->IsTrue();
 
diff --git a/src/util.h b/src/util.h
index 66d951e0336de5..a6da8720c499df 100644
--- a/src/util.h
+++ b/src/util.h
@@ -126,10 +126,6 @@ void DumpJavaScriptBacktrace(FILE* fp);
 #define ABORT_NO_BACKTRACE() abort()
 #endif
 
-#ifdef _WIN32
-#include <windows.h>
-#endif
-
 // Caller of this macro must not be marked as [[noreturn]]. Printing of
 // backtraces may not work correctly in [[noreturn]] functions because
 // when generating code for them the compiler can choose not to
@@ -566,20 +562,6 @@ class BufferValue : public MaybeStackBuffer<char> {
   inline std::string_view ToStringView() const {
     return std::string_view(out(), length());
   }
-  inline std::wstring ToWString() const {
-#ifdef _WIN32
-    auto size_needed = MultiByteToWideChar(
-        CP_UTF8, 0, out(), static_cast<int>(length()), nullptr, 0);
-    std::wstring wstrTo(length(), 0);
-    MultiByteToWideChar(
-        CP_UTF8, 0, out(), static_cast<int>(length()), &wstrTo[0], size_needed);
-#else
-    auto size_needed = std::mbstowcs(nullptr, out(), 0);
-    std::wstring wstrTo(size_needed, L'\0');
-    std::mbstowcs(&wstrTo[0], out(), length());
-#endif
-    return wstrTo;
-  }
 };
 
 #define SPREAD_BUFFER_ARG(val, name)                                           \