fix crash with async workers in napi addons

Author: vektor

.github/workflows/build.yml

@@ -55,6 +55,23 @@ jobs:
         uses: ilammy/setup-nasm@v1
         if: runner.os == 'Windows'
 
+      - name: Ensure MSVC Toolset 14.36.32532 is installed
+        if: runner.os == 'Windows'
+        shell: powershell
+        run: |
+          $vsPath = & '"C:\Program Files (x86)\Microsoft Visual Studio\Installer\vswhere.exe"' -latest -property installationPath
+          if (-not $vsPath) {
+            Write-Error "Visual Studio installation not found."
+            exit 1
+          }
+          $msvcDir = Join-Path $vsPath "VC\Tools\MSVC\14.36.32532"
+          if (-Not (Test-Path $msvcDir)) {
+            Write-Host "MSVC toolset 14.36.32532 not found. Attempting installation..."
+            & "C:\Program Files (x86)\Microsoft Visual Studio\Installer\vs_installer.exe" modify --installPath $vsPath --add Microsoft.VisualStudio.Component.VC.14.36.17.6.x86.x64 --quiet --wait
+          } else {
+            Write-Host "MSVC toolset 14.36.32532 is already installed."
+          }
+
       - name: Build
         if: runner.os == 'Windows'
         shell: bash

patches/async_addon.patch

@@ -0,0 +1,13 @@
+diff --git forkSrcPrefix/src/node_api.cc forkDstPrefix/src/node_api.cc
+index a019a1826c6ce72a5f05d0bee01ece2089126b09..4694d3ad271a7a46e28f4c9bf4b8266bb0eca56e 100644
+--- forkSrcPrefix/src/node_api.cc
++++ forkDstPrefix/src/node_api.cc
+@@ -1201,7 +1201,7 @@ class Work : public node::AsyncResource, public node::ThreadPoolWork {
+     // Establish a handle scope here so that every callback doesn't have to.
+     // Also it is needed for the exception-handling below.
+     v8::HandleScope scope(_env->isolate);
+-
++    v8::Context::Scope context_scope(_env->context());
+     CallbackScope callback_scope(this);
+ 
+     _env->CallbackIntoModule<true>([&](napi_env env) {