--- /dev/null
+/*********************************************************************
+ * NAN - Native Abstractions for Node.js
+ *
+ * Copyright (c) 2018 NAN contributors
+ *
+ * MIT License <https://github.com/nodejs/nan/blob/master/LICENSE.md>
+ ********************************************************************/
+
+#ifndef NAN_MAYBE_43_INL_H_
+#define NAN_MAYBE_43_INL_H_
+
+template<typename T>
+using MaybeLocal = v8::MaybeLocal<T>;
+
+inline
+MaybeLocal<v8::String> ToDetailString(v8::Local<v8::Value> val) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::EscapableHandleScope scope(isolate);
+ return scope.Escape(val->ToDetailString(isolate->GetCurrentContext())
+ .FromMaybe(v8::Local<v8::String>()));
+}
+
+inline
+MaybeLocal<v8::Uint32> ToArrayIndex(v8::Local<v8::Value> val) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::EscapableHandleScope scope(isolate);
+ return scope.Escape(val->ToArrayIndex(isolate->GetCurrentContext())
+ .FromMaybe(v8::Local<v8::Uint32>()));
+}
+
+inline
+Maybe<bool> Equals(v8::Local<v8::Value> a, v8::Local<v8::Value>(b)) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::HandleScope scope(isolate);
+ return a->Equals(isolate->GetCurrentContext(), b);
+}
+
+inline
+MaybeLocal<v8::Object> NewInstance(v8::Local<v8::Function> h) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::EscapableHandleScope scope(isolate);
+ return scope.Escape(h->NewInstance(isolate->GetCurrentContext())
+ .FromMaybe(v8::Local<v8::Object>()));
+}
+
+inline
+MaybeLocal<v8::Object> NewInstance(
+ v8::Local<v8::Function> h
+ , int argc
+ , v8::Local<v8::Value> argv[]) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::EscapableHandleScope scope(isolate);
+ return scope.Escape(h->NewInstance(isolate->GetCurrentContext(), argc, argv)
+ .FromMaybe(v8::Local<v8::Object>()));
+}
+
+inline
+MaybeLocal<v8::Object> NewInstance(v8::Local<v8::ObjectTemplate> h) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::EscapableHandleScope scope(isolate);
+ return scope.Escape(h->NewInstance(isolate->GetCurrentContext())
+ .FromMaybe(v8::Local<v8::Object>()));
+}
+
+
+inline MaybeLocal<v8::Function> GetFunction(
+ v8::Local<v8::FunctionTemplate> t) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::EscapableHandleScope scope(isolate);
+ return scope.Escape(t->GetFunction(isolate->GetCurrentContext())
+ .FromMaybe(v8::Local<v8::Function>()));
+}
+
+inline Maybe<bool> Set(
+ v8::Local<v8::Object> obj
+ , v8::Local<v8::Value> key
+ , v8::Local<v8::Value> value) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::HandleScope scope(isolate);
+ return obj->Set(isolate->GetCurrentContext(), key, value);
+}
+
+inline Maybe<bool> Set(
+ v8::Local<v8::Object> obj
+ , uint32_t index
+ , v8::Local<v8::Value> value) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::HandleScope scope(isolate);
+ return obj->Set(isolate->GetCurrentContext(), index, value);
+}
+
+#if NODE_MODULE_VERSION < NODE_4_0_MODULE_VERSION
+#include "nan_define_own_property_helper.h" // NOLINT(build/include)
+#endif
+
+inline Maybe<bool> DefineOwnProperty(
+ v8::Local<v8::Object> obj
+ , v8::Local<v8::String> key
+ , v8::Local<v8::Value> value
+ , v8::PropertyAttribute attribs = v8::None) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::HandleScope scope(isolate);
+#if NODE_MODULE_VERSION >= NODE_4_0_MODULE_VERSION
+ return obj->DefineOwnProperty(isolate->GetCurrentContext(), key, value,
+ attribs);
+#else
+ Maybe<v8::PropertyAttribute> maybeCurrent =
+ obj->GetPropertyAttributes(isolate->GetCurrentContext(), key);
+ if (maybeCurrent.IsNothing()) {
+ return Nothing<bool>();
+ }
+ v8::PropertyAttribute current = maybeCurrent.FromJust();
+ return imp::DefineOwnPropertyHelper(current, obj, key, value, attribs);
+#endif
+}
+
+NAN_DEPRECATED inline Maybe<bool> ForceSet(
+ v8::Local<v8::Object> obj
+ , v8::Local<v8::Value> key
+ , v8::Local<v8::Value> value
+ , v8::PropertyAttribute attribs = v8::None) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::HandleScope scope(isolate);
+#if NODE_MODULE_VERSION >= NODE_9_0_MODULE_VERSION
+ return key->IsName()
+ ? obj->DefineOwnProperty(isolate->GetCurrentContext(),
+ key.As<v8::Name>(), value, attribs)
+ : Nothing<bool>();
+#else
+ return obj->ForceSet(isolate->GetCurrentContext(), key, value, attribs);
+#endif
+}
+
+inline MaybeLocal<v8::Value> Get(
+ v8::Local<v8::Object> obj
+ , v8::Local<v8::Value> key) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::EscapableHandleScope scope(isolate);
+ return scope.Escape(obj->Get(isolate->GetCurrentContext(), key)
+ .FromMaybe(v8::Local<v8::Value>()));
+}
+
+inline
+MaybeLocal<v8::Value> Get(v8::Local<v8::Object> obj, uint32_t index) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::EscapableHandleScope scope(isolate);
+ return scope.Escape(obj->Get(isolate->GetCurrentContext(), index)
+ .FromMaybe(v8::Local<v8::Value>()));
+}
+
+inline v8::PropertyAttribute GetPropertyAttributes(
+ v8::Local<v8::Object> obj
+ , v8::Local<v8::Value> key) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::HandleScope scope(isolate);
+ return obj->GetPropertyAttributes(isolate->GetCurrentContext(), key)
+ .FromJust();
+}
+
+inline Maybe<bool> Has(
+ v8::Local<v8::Object> obj
+ , v8::Local<v8::String> key) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::HandleScope scope(isolate);
+ return obj->Has(isolate->GetCurrentContext(), key);
+}
+
+inline Maybe<bool> Has(v8::Local<v8::Object> obj, uint32_t index) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::HandleScope scope(isolate);
+ return obj->Has(isolate->GetCurrentContext(), index);
+}
+
+inline Maybe<bool> Delete(
+ v8::Local<v8::Object> obj
+ , v8::Local<v8::String> key) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::HandleScope scope(isolate);
+ return obj->Delete(isolate->GetCurrentContext(), key);
+}
+
+inline
+Maybe<bool> Delete(v8::Local<v8::Object> obj, uint32_t index) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::HandleScope scope(isolate);
+ return obj->Delete(isolate->GetCurrentContext(), index);
+}
+
+inline
+MaybeLocal<v8::Array> GetPropertyNames(v8::Local<v8::Object> obj) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::EscapableHandleScope scope(isolate);
+ return scope.Escape(obj->GetPropertyNames(isolate->GetCurrentContext())
+ .FromMaybe(v8::Local<v8::Array>()));
+}
+
+inline
+MaybeLocal<v8::Array> GetOwnPropertyNames(v8::Local<v8::Object> obj) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::EscapableHandleScope scope(isolate);
+ return scope.Escape(obj->GetOwnPropertyNames(isolate->GetCurrentContext())
+ .FromMaybe(v8::Local<v8::Array>()));
+}
+
+inline Maybe<bool> SetPrototype(
+ v8::Local<v8::Object> obj
+ , v8::Local<v8::Value> prototype) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::HandleScope scope(isolate);
+ return obj->SetPrototype(isolate->GetCurrentContext(), prototype);
+}
+
+inline MaybeLocal<v8::String> ObjectProtoToString(
+ v8::Local<v8::Object> obj) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::EscapableHandleScope scope(isolate);
+ return scope.Escape(obj->ObjectProtoToString(isolate->GetCurrentContext())
+ .FromMaybe(v8::Local<v8::String>()));
+}
+
+inline Maybe<bool> HasOwnProperty(
+ v8::Local<v8::Object> obj
+ , v8::Local<v8::String> key) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::HandleScope scope(isolate);
+ return obj->HasOwnProperty(isolate->GetCurrentContext(), key);
+}
+
+inline Maybe<bool> HasRealNamedProperty(
+ v8::Local<v8::Object> obj
+ , v8::Local<v8::String> key) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::HandleScope scope(isolate);
+ return obj->HasRealNamedProperty(isolate->GetCurrentContext(), key);
+}
+
+inline Maybe<bool> HasRealIndexedProperty(
+ v8::Local<v8::Object> obj
+ , uint32_t index) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::HandleScope scope(isolate);
+ return obj->HasRealIndexedProperty(isolate->GetCurrentContext(), index);
+}
+
+inline Maybe<bool> HasRealNamedCallbackProperty(
+ v8::Local<v8::Object> obj
+ , v8::Local<v8::String> key) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::HandleScope scope(isolate);
+ return obj->HasRealNamedCallbackProperty(isolate->GetCurrentContext(), key);
+}
+
+inline MaybeLocal<v8::Value> GetRealNamedPropertyInPrototypeChain(
+ v8::Local<v8::Object> obj
+ , v8::Local<v8::String> key) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::EscapableHandleScope scope(isolate);
+ return scope.Escape(obj->GetRealNamedPropertyInPrototypeChain(
+ isolate->GetCurrentContext(), key)
+ .FromMaybe(v8::Local<v8::Value>()));
+}
+
+inline MaybeLocal<v8::Value> GetRealNamedProperty(
+ v8::Local<v8::Object> obj
+ , v8::Local<v8::String> key) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::EscapableHandleScope scope(isolate);
+ return scope.Escape(
+ obj->GetRealNamedProperty(isolate->GetCurrentContext(), key)
+ .FromMaybe(v8::Local<v8::Value>()));
+}
+
+inline MaybeLocal<v8::Value> CallAsFunction(
+ v8::Local<v8::Object> obj
+ , v8::Local<v8::Object> recv
+ , int argc
+ , v8::Local<v8::Value> argv[]) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::EscapableHandleScope scope(isolate);
+ return scope.Escape(
+ obj->CallAsFunction(isolate->GetCurrentContext(), recv, argc, argv)
+ .FromMaybe(v8::Local<v8::Value>()));
+}
+
+inline MaybeLocal<v8::Value> CallAsConstructor(
+ v8::Local<v8::Object> obj
+ , int argc, v8::Local<v8::Value> argv[]) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::EscapableHandleScope scope(isolate);
+ return scope.Escape(
+ obj->CallAsConstructor(isolate->GetCurrentContext(), argc, argv)
+ .FromMaybe(v8::Local<v8::Value>()));
+}
+
+inline
+MaybeLocal<v8::String> GetSourceLine(v8::Local<v8::Message> msg) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::EscapableHandleScope scope(isolate);
+ return scope.Escape(msg->GetSourceLine(isolate->GetCurrentContext())
+ .FromMaybe(v8::Local<v8::String>()));
+}
+
+inline Maybe<int> GetLineNumber(v8::Local<v8::Message> msg) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::HandleScope scope(isolate);
+ return msg->GetLineNumber(isolate->GetCurrentContext());
+}
+
+inline Maybe<int> GetStartColumn(v8::Local<v8::Message> msg) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::HandleScope scope(isolate);
+ return msg->GetStartColumn(isolate->GetCurrentContext());
+}
+
+inline Maybe<int> GetEndColumn(v8::Local<v8::Message> msg) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::HandleScope scope(isolate);
+ return msg->GetEndColumn(isolate->GetCurrentContext());
+}
+
+inline MaybeLocal<v8::Object> CloneElementAt(
+ v8::Local<v8::Array> array
+ , uint32_t index) {
+#if (NODE_MODULE_VERSION >= NODE_6_0_MODULE_VERSION)
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::EscapableHandleScope scope(isolate);
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+ v8::Local<v8::Value> elem;
+ v8::Local<v8::Object> obj;
+ if (!array->Get(context, index).ToLocal(&elem)) {
+ return scope.Escape(obj);
+ }
+ if (!elem->ToObject(context).ToLocal(&obj)) {
+ return scope.Escape(v8::Local<v8::Object>());
+ }
+ return scope.Escape(obj->Clone());
+#else
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::EscapableHandleScope scope(isolate);
+ return scope.Escape(array->CloneElementAt(isolate->GetCurrentContext(), index)
+ .FromMaybe(v8::Local<v8::Object>()));
+#endif
+}
+
+inline MaybeLocal<v8::Value> Call(
+ v8::Local<v8::Function> fun
+ , v8::Local<v8::Object> recv
+ , int argc
+ , v8::Local<v8::Value> argv[]) {
+ v8::Isolate *isolate = v8::Isolate::GetCurrent();
+ v8::EscapableHandleScope scope(isolate);
+ return scope.Escape(fun->Call(isolate->GetCurrentContext(), recv, argc, argv)
+ .FromMaybe(v8::Local<v8::Value>()));
+}
+
+#endif // NAN_MAYBE_43_INL_H_
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