src: add missing context scopes

Add scopes that ensure that the context associated with the
current Environment is always entered when working with it.

PR-URL: #36413
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>

Author: addaleax

src/env.cc

@@ -539,6 +539,8 @@ void Environment::InitializeLibuv() {
       [](uv_async_t* async) {
         Environment* env = ContainerOf(
             &Environment::task_queues_async_, async);
+        HandleScope handle_scope(env->isolate());
+        Context::Scope context_scope(env->context());
         env->RunAndClearNativeImmediates();
       });
   uv_unref(reinterpret_cast<uv_handle_t*>(&task_queues_async_));

src/node_file.cc

@@ -288,6 +288,7 @@ inline void FileHandle::Close() {
 void FileHandle::CloseReq::Resolve() {
   Isolate* isolate = env()->isolate();
   HandleScope scope(isolate);
+  Context::Scope context_scope(env()->context());
   InternalCallbackScope callback_scope(this);
   Local<Promise> promise = promise_.Get(isolate);
   Local<Promise::Resolver> resolver = promise.As<Promise::Resolver>();
@@ -297,6 +298,7 @@ void FileHandle::CloseReq::Resolve() {
 void FileHandle::CloseReq::Reject(Local<Value> reason) {
   Isolate* isolate = env()->isolate();
   HandleScope scope(isolate);
+  Context::Scope context_scope(env()->context());
   InternalCallbackScope callback_scope(this);
   Local<Promise> promise = promise_.Get(isolate);
   Local<Promise::Resolver> resolver = promise.As<Promise::Resolver>();