feat: add HermesRuntime::createNapiEnv method

Author: DjDeveloperr

API/hermes/hermes.cpp

@@ -6,6 +6,8 @@
  */
 
 #include "hermes.h"
+#include "hermes_win.h"
+#include "ScriptStore.h"
 
 #include "llvh/Support/Compiler.h"
 
@@ -78,6 +80,13 @@ namespace vm = hermes::vm;
 namespace hbc = hermes::hbc;
 using ::hermes::hermesLog;
 
+napi_status hermes_create_napi_env(
+    ::hermes::vm::Runtime &runtime,
+    bool isInspectable,
+    std::shared_ptr<facebook::jsi::PreparedScriptStore> preparedScript,
+    const ::hermes::vm::RuntimeConfig &runtimeConfig,
+    napi_env *env);
+
 namespace facebook {
 namespace hermes {
 namespace detail {
@@ -1068,6 +1077,11 @@ inline const HermesRuntimeImpl *impl(const HermesRuntime *rt) {
 
 } // namespace
 
+napi_status HermesRuntime::createNapiEnv(napi_env *env) {
+  auto imp = impl(this);
+  return hermes_create_napi_env(imp->runtime_, true, nullptr, {}, env);
+}
+
 bool HermesRuntime::isHermesBytecode(const uint8_t *data, size_t len) {
   return hbc::BCProviderFromBuffer::isBytecodeStream(
       llvh::ArrayRef<uint8_t>(data, len));

API/hermes/hermes.h

@@ -20,6 +20,8 @@
 #include <jsi/jsi.h>
 #include <unordered_map>
 
+#include "js_native_api.h"
+
 struct HermesTestHelper;
 
 namespace hermes {
@@ -82,6 +84,8 @@ class HERMES_EXPORT HermesRuntime : public jsi::Runtime {
   /// Dump sampled stack trace to the given stream.
   static void dumpSampledTraceToStream(std::ostream &stream);
 
+  napi_status createNapiEnv(napi_env *env);
+
   /// Serialize the sampled stack to the format expected by DevTools'
   /// Profiler.stop return type.
   void sampledTraceToStreamInDevToolsFormat(std::ostream &stream);