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-rw-r--r--node_modules/node-addon-api/src/node_api.cc3649
-rw-r--r--node_modules/node-addon-api/src/node_api.gyp21
-rw-r--r--node_modules/node-addon-api/src/node_api.h588
-rw-r--r--node_modules/node-addon-api/src/node_api_types.h115
-rw-r--r--node_modules/node-addon-api/src/node_internals.cc142
-rw-r--r--node_modules/node-addon-api/src/node_internals.h157
-rw-r--r--node_modules/node-addon-api/src/nothing.c0
-rw-r--r--node_modules/node-addon-api/src/util-inl.h38
-rw-r--r--node_modules/node-addon-api/src/util.h7
9 files changed, 4717 insertions, 0 deletions
diff --git a/node_modules/node-addon-api/src/node_api.cc b/node_modules/node-addon-api/src/node_api.cc
new file mode 100644
index 0000000..dd16016
--- /dev/null
+++ b/node_modules/node-addon-api/src/node_api.cc
@@ -0,0 +1,3649 @@
+/******************************************************************************
+ * Experimental prototype for demonstrating VM agnostic and ABI stable API
+ * for native modules to use instead of using Nan and V8 APIs directly.
+ *
+ * The current status is "Experimental" and should not be used for
+ * production applications. The API is still subject to change
+ * and as an experimental feature is NOT subject to semver.
+ *
+ ******************************************************************************/
+
+#include <node_buffer.h>
+#include <node_object_wrap.h>
+#include <limits.h> // INT_MAX
+#include <string.h>
+#include <algorithm>
+#include <cmath>
+#include <vector>
+#include "node_api.h"
+#include "node_internals.h"
+
+#define NAPI_VERSION 1
+
+static
+napi_status napi_set_last_error(napi_env env, napi_status error_code,
+ uint32_t engine_error_code = 0,
+ void* engine_reserved = nullptr);
+static
+napi_status napi_clear_last_error(napi_env env);
+
+struct napi_env__ {
+ explicit napi_env__(v8::Isolate* _isolate): isolate(_isolate),
+ has_instance_available(true), last_error() {}
+ ~napi_env__() {
+ last_exception.Reset();
+ has_instance.Reset();
+ wrap_template.Reset();
+ }
+ v8::Isolate* isolate;
+ v8::Persistent<v8::Value> last_exception;
+ v8::Persistent<v8::Value> has_instance;
+ v8::Persistent<v8::ObjectTemplate> wrap_template;
+ bool has_instance_available;
+ napi_extended_error_info last_error;
+ int open_handle_scopes = 0;
+};
+
+#define ENV_OBJECT_TEMPLATE(env, prefix, destination, field_count) \
+ do { \
+ if ((env)->prefix ## _template.IsEmpty()) { \
+ (destination) = v8::ObjectTemplate::New(isolate); \
+ (destination)->SetInternalFieldCount((field_count)); \
+ (env)->prefix ## _template.Reset(isolate, (destination)); \
+ } else { \
+ (destination) = v8::Local<v8::ObjectTemplate>::New( \
+ isolate, env->prefix ## _template); \
+ } \
+ } while (0)
+
+#define RETURN_STATUS_IF_FALSE(env, condition, status) \
+ do { \
+ if (!(condition)) { \
+ return napi_set_last_error((env), (status)); \
+ } \
+ } while (0)
+
+#define CHECK_ENV(env) \
+ if ((env) == nullptr) { \
+ return napi_invalid_arg; \
+ }
+
+#define CHECK_ARG(env, arg) \
+ RETURN_STATUS_IF_FALSE((env), ((arg) != nullptr), napi_invalid_arg)
+
+#define CHECK_MAYBE_EMPTY(env, maybe, status) \
+ RETURN_STATUS_IF_FALSE((env), !((maybe).IsEmpty()), (status))
+
+#define CHECK_MAYBE_NOTHING(env, maybe, status) \
+ RETURN_STATUS_IF_FALSE((env), !((maybe).IsNothing()), (status))
+
+// NAPI_PREAMBLE is not wrapped in do..while: try_catch must have function scope
+#define NAPI_PREAMBLE(env) \
+ CHECK_ENV((env)); \
+ RETURN_STATUS_IF_FALSE((env), (env)->last_exception.IsEmpty(), \
+ napi_pending_exception); \
+ napi_clear_last_error((env)); \
+ v8impl::TryCatch try_catch((env))
+
+#define CHECK_TO_TYPE(env, type, context, result, src, status) \
+ do { \
+ CHECK_ARG((env), (src)); \
+ auto maybe = v8impl::V8LocalValueFromJsValue((src))->To##type((context)); \
+ CHECK_MAYBE_EMPTY((env), maybe, (status)); \
+ (result) = maybe.ToLocalChecked(); \
+ } while (0)
+
+#define CHECK_TO_FUNCTION(env, result, src) \
+ do { \
+ CHECK_ARG((env), (src)); \
+ v8::Local<v8::Value> v8value = v8impl::V8LocalValueFromJsValue((src)); \
+ RETURN_STATUS_IF_FALSE((env), v8value->IsFunction(), napi_invalid_arg); \
+ (result) = v8value.As<v8::Function>(); \
+ } while (0)
+
+#define CHECK_TO_OBJECT(env, context, result, src) \
+ CHECK_TO_TYPE((env), Object, (context), (result), (src), napi_object_expected)
+
+#define CHECK_TO_STRING(env, context, result, src) \
+ CHECK_TO_TYPE((env), String, (context), (result), (src), napi_string_expected)
+
+#define CHECK_TO_NUMBER(env, context, result, src) \
+ CHECK_TO_TYPE((env), Number, (context), (result), (src), napi_number_expected)
+
+#define CHECK_TO_BOOL(env, context, result, src) \
+ CHECK_TO_TYPE((env), Boolean, (context), (result), (src), \
+ napi_boolean_expected)
+
+// n-api defines NAPI_AUTO_LENGHTH as the indicator that a string
+// is null terminated. For V8 the equivalent is -1. The assert
+// validates that our cast of NAPI_AUTO_LENGTH results in -1 as
+// needed by V8.
+#define CHECK_NEW_FROM_UTF8_LEN(env, result, str, len) \
+ do { \
+ static_assert(static_cast<int>(NAPI_AUTO_LENGTH) == -1, \
+ "Casting NAPI_AUTO_LENGTH to int must result in -1"); \
+ RETURN_STATUS_IF_FALSE((env), \
+ (len == NAPI_AUTO_LENGTH) || len <= INT_MAX, \
+ napi_invalid_arg); \
+ auto str_maybe = v8::String::NewFromUtf8( \
+ (env)->isolate, (str), v8::NewStringType::kInternalized, \
+ static_cast<int>(len)); \
+ CHECK_MAYBE_EMPTY((env), str_maybe, napi_generic_failure); \
+ (result) = str_maybe.ToLocalChecked(); \
+ } while (0)
+
+#define CHECK_NEW_FROM_UTF8(env, result, str) \
+ CHECK_NEW_FROM_UTF8_LEN((env), (result), (str), NAPI_AUTO_LENGTH)
+
+#define GET_RETURN_STATUS(env) \
+ (!try_catch.HasCaught() ? napi_ok \
+ : napi_set_last_error((env), napi_pending_exception))
+
+#define THROW_RANGE_ERROR_IF_FALSE(env, condition, error, message) \
+ do { \
+ if (!(condition)) { \
+ napi_throw_range_error((env), (error), (message)); \
+ return napi_set_last_error((env), napi_generic_failure); \
+ } \
+ } while (0)
+
+#define CREATE_TYPED_ARRAY( \
+ env, type, size_of_element, buffer, byte_offset, length, out) \
+ do { \
+ if ((size_of_element) > 1) { \
+ THROW_RANGE_ERROR_IF_FALSE( \
+ (env), (byte_offset) % (size_of_element) == 0, \
+ "ERR_NAPI_INVALID_TYPEDARRAY_ALIGNMENT", \
+ "start offset of "#type" should be a multiple of "#size_of_element); \
+ } \
+ THROW_RANGE_ERROR_IF_FALSE((env), (length) * (size_of_element) + \
+ (byte_offset) <= buffer->ByteLength(), \
+ "ERR_NAPI_INVALID_TYPEDARRAY_LENGTH", \
+ "Invalid typed array length"); \
+ (out) = v8::type::New((buffer), (byte_offset), (length)); \
+ } while (0)
+
+#define NAPI_CALL_INTO_MODULE(env, call, handle_exception) \
+ do { \
+ int open_handle_scopes = (env)->open_handle_scopes; \
+ napi_clear_last_error((env)); \
+ call; \
+ CHECK_EQ((env)->open_handle_scopes, open_handle_scopes); \
+ if (!(env)->last_exception.IsEmpty()) { \
+ handle_exception( \
+ v8::Local<v8::Value>::New((env)->isolate, (env)->last_exception)); \
+ (env)->last_exception.Reset(); \
+ } \
+ } while (0)
+
+#define NAPI_CALL_INTO_MODULE_THROW(env, call) \
+ NAPI_CALL_INTO_MODULE((env), call, (env)->isolate->ThrowException)
+
+namespace {
+namespace v8impl {
+
+// convert from n-api property attributes to v8::PropertyAttribute
+static inline v8::PropertyAttribute V8PropertyAttributesFromDescriptor(
+ const napi_property_descriptor* descriptor) {
+ unsigned int attribute_flags = v8::PropertyAttribute::None;
+
+ if (descriptor->getter != nullptr || descriptor->setter != nullptr) {
+ // The napi_writable attribute is ignored for accessor descriptors, but
+ // V8 requires the ReadOnly attribute to match nonexistence of a setter.
+ attribute_flags |= (descriptor->setter == nullptr ?
+ v8::PropertyAttribute::ReadOnly : v8::PropertyAttribute::None);
+ } else if ((descriptor->attributes & napi_writable) == 0) {
+ attribute_flags |= v8::PropertyAttribute::ReadOnly;
+ }
+
+ if ((descriptor->attributes & napi_enumerable) == 0) {
+ attribute_flags |= v8::PropertyAttribute::DontEnum;
+ }
+ if ((descriptor->attributes & napi_configurable) == 0) {
+ attribute_flags |= v8::PropertyAttribute::DontDelete;
+ }
+
+ return static_cast<v8::PropertyAttribute>(attribute_flags);
+}
+
+class HandleScopeWrapper {
+ public:
+ explicit HandleScopeWrapper(v8::Isolate* isolate) : scope(isolate) {}
+
+ private:
+ v8::HandleScope scope;
+};
+
+// In node v0.10 version of v8, there is no EscapableHandleScope and the
+// node v0.10 port use HandleScope::Close(Local<T> v) to mimic the behavior
+// of a EscapableHandleScope::Escape(Local<T> v), but it is not the same
+// semantics. This is an example of where the api abstraction fail to work
+// across different versions.
+class EscapableHandleScopeWrapper {
+ public:
+ explicit EscapableHandleScopeWrapper(v8::Isolate* isolate)
+ : scope(isolate), escape_called_(false) {}
+ bool escape_called() const {
+ return escape_called_;
+ }
+ template <typename T>
+ v8::Local<T> Escape(v8::Local<T> handle) {
+ escape_called_ = true;
+ return scope.Escape(handle);
+ }
+
+ private:
+ v8::EscapableHandleScope scope;
+ bool escape_called_;
+};
+
+static
+napi_handle_scope JsHandleScopeFromV8HandleScope(HandleScopeWrapper* s) {
+ return reinterpret_cast<napi_handle_scope>(s);
+}
+
+static
+HandleScopeWrapper* V8HandleScopeFromJsHandleScope(napi_handle_scope s) {
+ return reinterpret_cast<HandleScopeWrapper*>(s);
+}
+
+static
+napi_escapable_handle_scope JsEscapableHandleScopeFromV8EscapableHandleScope(
+ EscapableHandleScopeWrapper* s) {
+ return reinterpret_cast<napi_escapable_handle_scope>(s);
+}
+
+static
+EscapableHandleScopeWrapper*
+V8EscapableHandleScopeFromJsEscapableHandleScope(
+ napi_escapable_handle_scope s) {
+ return reinterpret_cast<EscapableHandleScopeWrapper*>(s);
+}
+
+//=== Conversion between V8 Handles and napi_value ========================
+
+// This asserts v8::Local<> will always be implemented with a single
+// pointer field so that we can pass it around as a void*.
+static_assert(sizeof(v8::Local<v8::Value>) == sizeof(napi_value),
+ "Cannot convert between v8::Local<v8::Value> and napi_value");
+
+static
+napi_deferred JsDeferredFromV8Persistent(v8::Persistent<v8::Value>* local) {
+ return reinterpret_cast<napi_deferred>(local);
+}
+
+static
+v8::Persistent<v8::Value>* V8PersistentFromJsDeferred(napi_deferred local) {
+ return reinterpret_cast<v8::Persistent<v8::Value>*>(local);
+}
+
+static
+napi_value JsValueFromV8LocalValue(v8::Local<v8::Value> local) {
+ return reinterpret_cast<napi_value>(*local);
+}
+
+static
+v8::Local<v8::Value> V8LocalValueFromJsValue(napi_value v) {
+ v8::Local<v8::Value> local;
+ memcpy(&local, &v, sizeof(v));
+ return local;
+}
+
+static inline void trigger_fatal_exception(
+ napi_env env, v8::Local<v8::Value> local_err) {
+ v8::TryCatch try_catch(env->isolate);
+ env->isolate->ThrowException(local_err);
+ node::FatalException(env->isolate, try_catch);
+}
+
+static inline napi_status V8NameFromPropertyDescriptor(napi_env env,
+ const napi_property_descriptor* p,
+ v8::Local<v8::Name>* result) {
+ if (p->utf8name != nullptr) {
+ CHECK_NEW_FROM_UTF8(env, *result, p->utf8name);
+ } else {
+ v8::Local<v8::Value> property_value =
+ v8impl::V8LocalValueFromJsValue(p->name);
+
+ RETURN_STATUS_IF_FALSE(env, property_value->IsName(), napi_name_expected);
+ *result = property_value.As<v8::Name>();
+ }
+
+ return napi_ok;
+}
+
+// Adapter for napi_finalize callbacks.
+class Finalizer {
+ protected:
+ Finalizer(napi_env env,
+ napi_finalize finalize_callback,
+ void* finalize_data,
+ void* finalize_hint)
+ : _env(env),
+ _finalize_callback(finalize_callback),
+ _finalize_data(finalize_data),
+ _finalize_hint(finalize_hint) {
+ }
+
+ ~Finalizer() {
+ }
+
+ public:
+ static Finalizer* New(napi_env env,
+ napi_finalize finalize_callback = nullptr,
+ void* finalize_data = nullptr,
+ void* finalize_hint = nullptr) {
+ return new Finalizer(
+ env, finalize_callback, finalize_data, finalize_hint);
+ }
+
+ static void Delete(Finalizer* finalizer) {
+ delete finalizer;
+ }
+
+ // node::Buffer::FreeCallback
+ static void FinalizeBufferCallback(char* data, void* hint) {
+ Finalizer* finalizer = static_cast<Finalizer*>(hint);
+ if (finalizer->_finalize_callback != nullptr) {
+ NAPI_CALL_INTO_MODULE_THROW(finalizer->_env,
+ finalizer->_finalize_callback(
+ finalizer->_env,
+ data,
+ finalizer->_finalize_hint));
+ }
+
+ Delete(finalizer);
+ }
+
+ protected:
+ napi_env _env;
+ napi_finalize _finalize_callback;
+ void* _finalize_data;
+ void* _finalize_hint;
+};
+
+// Wrapper around v8::Persistent that implements reference counting.
+class Reference : private Finalizer {
+ private:
+ Reference(napi_env env,
+ v8::Local<v8::Value> value,
+ uint32_t initial_refcount,
+ bool delete_self,
+ napi_finalize finalize_callback,
+ void* finalize_data,
+ void* finalize_hint)
+ : Finalizer(env, finalize_callback, finalize_data, finalize_hint),
+ _persistent(env->isolate, value),
+ _refcount(initial_refcount),
+ _delete_self(delete_self) {
+ if (initial_refcount == 0) {
+ _persistent.SetWeak(
+ this, FinalizeCallback, v8::WeakCallbackType::kParameter);
+ _persistent.MarkIndependent();
+ }
+ }
+
+ ~Reference() {
+ // The V8 Persistent class currently does not reset in its destructor:
+ // see NonCopyablePersistentTraits::kResetInDestructor = false.
+ // (Comments there claim that might change in the future.)
+ // To avoid memory leaks, it is better to reset at this time, however
+ // care must be taken to avoid attempting this after the Isolate has
+ // shut down, for example via a static (atexit) destructor.
+ _persistent.Reset();
+ }
+
+ public:
+ static Reference* New(napi_env env,
+ v8::Local<v8::Value> value,
+ uint32_t initial_refcount,
+ bool delete_self,
+ napi_finalize finalize_callback = nullptr,
+ void* finalize_data = nullptr,
+ void* finalize_hint = nullptr) {
+ return new Reference(env,
+ value,
+ initial_refcount,
+ delete_self,
+ finalize_callback,
+ finalize_data,
+ finalize_hint);
+ }
+
+ static void Delete(Reference* reference) {
+ delete reference;
+ }
+
+ uint32_t Ref() {
+ if (++_refcount == 1) {
+ _persistent.ClearWeak();
+ }
+
+ return _refcount;
+ }
+
+ uint32_t Unref() {
+ if (_refcount == 0) {
+ return 0;
+ }
+ if (--_refcount == 0) {
+ _persistent.SetWeak(
+ this, FinalizeCallback, v8::WeakCallbackType::kParameter);
+ _persistent.MarkIndependent();
+ }
+
+ return _refcount;
+ }
+
+ uint32_t RefCount() {
+ return _refcount;
+ }
+
+ v8::Local<v8::Value> Get() {
+ if (_persistent.IsEmpty()) {
+ return v8::Local<v8::Value>();
+ } else {
+ return v8::Local<v8::Value>::New(_env->isolate, _persistent);
+ }
+ }
+
+ private:
+ static void FinalizeCallback(const v8::WeakCallbackInfo<Reference>& data) {
+ Reference* reference = data.GetParameter();
+ reference->_persistent.Reset();
+
+ // Check before calling the finalize callback, because the callback might
+ // delete it.
+ bool delete_self = reference->_delete_self;
+ napi_env env = reference->_env;
+
+ if (reference->_finalize_callback != nullptr) {
+ NAPI_CALL_INTO_MODULE_THROW(env,
+ reference->_finalize_callback(
+ reference->_env,
+ reference->_finalize_data,
+ reference->_finalize_hint));
+ }
+
+ if (delete_self) {
+ Delete(reference);
+ }
+ }
+
+ v8::Persistent<v8::Value> _persistent;
+ uint32_t _refcount;
+ bool _delete_self;
+};
+
+class TryCatch : public v8::TryCatch {
+ public:
+ explicit TryCatch(napi_env env)
+ : v8::TryCatch(env->isolate), _env(env) {}
+
+ ~TryCatch() {
+ if (HasCaught()) {
+ _env->last_exception.Reset(_env->isolate, Exception());
+ }
+ }
+
+ private:
+ napi_env _env;
+};
+
+//=== Function napi_callback wrapper =================================
+
+// Use this data structure to associate callback data with each N-API function
+// exposed to JavaScript. The structure is stored in a v8::External which gets
+// passed into our callback wrapper. This reduces the performance impact of
+// calling through N-API.
+// Ref: benchmark/misc/function_call
+// Discussion (incl. perf. data): https://github.com/nodejs/node/pull/21072
+struct CallbackBundle {
+ // Bind the lifecycle of `this` C++ object to a JavaScript object.
+ // We never delete a CallbackBundle C++ object directly.
+ void BindLifecycleTo(v8::Isolate* isolate, v8::Local<v8::Value> target) {
+ handle.Reset(isolate, target);
+ handle.SetWeak(this, WeakCallback, v8::WeakCallbackType::kParameter);
+ }
+
+ napi_env env; // Necessary to invoke C++ NAPI callback
+ void* cb_data; // The user provided callback data
+ napi_callback function_or_getter;
+ napi_callback setter;
+ node::Persistent<v8::Value> handle; // Die with this JavaScript object
+
+ private:
+ static void WeakCallback(v8::WeakCallbackInfo<CallbackBundle> const& info) {
+ // Use the "WeakCallback mechanism" to delete the C++ `bundle` object.
+ // This will be called when the v8::External containing `this` pointer
+ // is being GC-ed.
+ CallbackBundle* bundle = info.GetParameter();
+ if (bundle != nullptr) {
+ delete bundle;
+ }
+ }
+};
+
+// Base class extended by classes that wrap V8 function and property callback
+// info.
+class CallbackWrapper {
+ public:
+ CallbackWrapper(napi_value this_arg, size_t args_length, void* data)
+ : _this(this_arg), _args_length(args_length), _data(data) {}
+
+ virtual napi_value GetNewTarget() = 0;
+ virtual void Args(napi_value* buffer, size_t bufferlength) = 0;
+ virtual void SetReturnValue(napi_value value) = 0;
+
+ napi_value This() { return _this; }
+
+ size_t ArgsLength() { return _args_length; }
+
+ void* Data() { return _data; }
+
+ protected:
+ const napi_value _this;
+ const size_t _args_length;
+ void* _data;
+};
+
+template <typename Info, napi_callback CallbackBundle::*FunctionField>
+class CallbackWrapperBase : public CallbackWrapper {
+ public:
+ CallbackWrapperBase(const Info& cbinfo, const size_t args_length)
+ : CallbackWrapper(JsValueFromV8LocalValue(cbinfo.This()),
+ args_length,
+ nullptr),
+ _cbinfo(cbinfo) {
+ _bundle = reinterpret_cast<CallbackBundle*>(
+ v8::Local<v8::External>::Cast(cbinfo.Data())->Value());
+ _data = _bundle->cb_data;
+ }
+
+ napi_value GetNewTarget() override { return nullptr; }
+
+ protected:
+ void InvokeCallback() {
+ napi_callback_info cbinfo_wrapper = reinterpret_cast<napi_callback_info>(
+ static_cast<CallbackWrapper*>(this));
+
+ // All other pointers we need are stored in `_bundle`
+ napi_env env = _bundle->env;
+ napi_callback cb = _bundle->*FunctionField;
+
+ napi_value result;
+ NAPI_CALL_INTO_MODULE_THROW(env, result = cb(env, cbinfo_wrapper));
+
+ if (result != nullptr) {
+ this->SetReturnValue(result);
+ }
+ }
+
+ const Info& _cbinfo;
+ CallbackBundle* _bundle;
+};
+
+class FunctionCallbackWrapper
+ : public CallbackWrapperBase<v8::FunctionCallbackInfo<v8::Value>,
+ &CallbackBundle::function_or_getter> {
+ public:
+ static void Invoke(const v8::FunctionCallbackInfo<v8::Value>& info) {
+ FunctionCallbackWrapper cbwrapper(info);
+ cbwrapper.InvokeCallback();
+ }
+
+ explicit FunctionCallbackWrapper(
+ const v8::FunctionCallbackInfo<v8::Value>& cbinfo)
+ : CallbackWrapperBase(cbinfo, cbinfo.Length()) {}
+
+ napi_value GetNewTarget() override {
+ if (_cbinfo.IsConstructCall()) {
+ return v8impl::JsValueFromV8LocalValue(_cbinfo.NewTarget());
+ } else {
+ return nullptr;
+ }
+ }
+
+ /*virtual*/
+ void Args(napi_value* buffer, size_t buffer_length) override {
+ size_t i = 0;
+ size_t min = std::min(buffer_length, _args_length);
+
+ for (; i < min; i += 1) {
+ buffer[i] = v8impl::JsValueFromV8LocalValue(_cbinfo[i]);
+ }
+
+ if (i < buffer_length) {
+ napi_value undefined =
+ v8impl::JsValueFromV8LocalValue(v8::Undefined(_cbinfo.GetIsolate()));
+ for (; i < buffer_length; i += 1) {
+ buffer[i] = undefined;
+ }
+ }
+ }
+
+ /*virtual*/
+ void SetReturnValue(napi_value value) override {
+ v8::Local<v8::Value> val = v8impl::V8LocalValueFromJsValue(value);
+ _cbinfo.GetReturnValue().Set(val);
+ }
+};
+
+class GetterCallbackWrapper
+ : public CallbackWrapperBase<v8::PropertyCallbackInfo<v8::Value>,
+ &CallbackBundle::function_or_getter> {
+ public:
+ static void Invoke(v8::Local<v8::Name> property,
+ const v8::PropertyCallbackInfo<v8::Value>& info) {
+ GetterCallbackWrapper cbwrapper(info);
+ cbwrapper.InvokeCallback();
+ }
+
+ explicit GetterCallbackWrapper(
+ const v8::PropertyCallbackInfo<v8::Value>& cbinfo)
+ : CallbackWrapperBase(cbinfo, 0) {}
+
+ /*virtual*/
+ void Args(napi_value* buffer, size_t buffer_length) override {
+ if (buffer_length > 0) {
+ napi_value undefined =
+ v8impl::JsValueFromV8LocalValue(v8::Undefined(_cbinfo.GetIsolate()));
+ for (size_t i = 0; i < buffer_length; i += 1) {
+ buffer[i] = undefined;
+ }
+ }
+ }
+
+ /*virtual*/
+ void SetReturnValue(napi_value value) override {
+ v8::Local<v8::Value> val = v8impl::V8LocalValueFromJsValue(value);
+ _cbinfo.GetReturnValue().Set(val);
+ }
+};
+
+class SetterCallbackWrapper
+ : public CallbackWrapperBase<v8::PropertyCallbackInfo<void>,
+ &CallbackBundle::setter> {
+ public:
+ static void Invoke(v8::Local<v8::Name> property,
+ v8::Local<v8::Value> value,
+ const v8::PropertyCallbackInfo<void>& info) {
+ SetterCallbackWrapper cbwrapper(info, value);
+ cbwrapper.InvokeCallback();
+ }
+
+ SetterCallbackWrapper(const v8::PropertyCallbackInfo<void>& cbinfo,
+ const v8::Local<v8::Value>& value)
+ : CallbackWrapperBase(cbinfo, 1), _value(value) {}
+
+ /*virtual*/
+ void Args(napi_value* buffer, size_t buffer_length) override {
+ if (buffer_length > 0) {
+ buffer[0] = v8impl::JsValueFromV8LocalValue(_value);
+
+ if (buffer_length > 1) {
+ napi_value undefined = v8impl::JsValueFromV8LocalValue(
+ v8::Undefined(_cbinfo.GetIsolate()));
+ for (size_t i = 1; i < buffer_length; i += 1) {
+ buffer[i] = undefined;
+ }
+ }
+ }
+ }
+
+ /*virtual*/
+ void SetReturnValue(napi_value value) override {
+ // Ignore any value returned from a setter callback.
+ }
+
+ private:
+ const v8::Local<v8::Value>& _value;
+};
+
+// Creates an object to be made available to the static function callback
+// wrapper, used to retrieve the native callback function and data pointer.
+static
+v8::Local<v8::Value> CreateFunctionCallbackData(napi_env env,
+ napi_callback cb,
+ void* data) {
+ CallbackBundle* bundle = new CallbackBundle();
+ bundle->function_or_getter = cb;
+ bundle->cb_data = data;
+ bundle->env = env;
+ v8::Local<v8::Value> cbdata = v8::External::New(env->isolate, bundle);
+ bundle->BindLifecycleTo(env->isolate, cbdata);
+
+ return cbdata;
+}
+
+// Creates an object to be made available to the static getter/setter
+// callback wrapper, used to retrieve the native getter/setter callback
+// function and data pointer.
+static
+v8::Local<v8::Value> CreateAccessorCallbackData(napi_env env,
+ napi_callback getter,
+ napi_callback setter,
+ void* data) {
+ CallbackBundle* bundle = new CallbackBundle();
+ bundle->function_or_getter = getter;
+ bundle->setter = setter;
+ bundle->cb_data = data;
+ bundle->env = env;
+ v8::Local<v8::Value> cbdata = v8::External::New(env->isolate, bundle);
+ bundle->BindLifecycleTo(env->isolate, cbdata);
+
+ return cbdata;
+}
+
+int kWrapperFields = 3;
+
+// Pointer used to identify items wrapped by N-API. Used by FindWrapper and
+// napi_wrap().
+const char napi_wrap_name[] = "N-API Wrapper";
+
+// Search the object's prototype chain for the wrapper object. Usually the
+// wrapper would be the first in the chain, but it is OK for other objects to
+// be inserted in the prototype chain.
+static
+bool FindWrapper(v8::Local<v8::Object> obj,
+ v8::Local<v8::Object>* result = nullptr,
+ v8::Local<v8::Object>* parent = nullptr) {
+ v8::Local<v8::Object> wrapper = obj;
+
+ do {
+ v8::Local<v8::Value> proto = wrapper->GetPrototype();
+ if (proto.IsEmpty() || !proto->IsObject()) {
+ return false;
+ }
+ if (parent != nullptr) {
+ *parent = wrapper;
+ }
+ wrapper = proto.As<v8::Object>();
+ if (wrapper->InternalFieldCount() == kWrapperFields) {
+ v8::Local<v8::Value> external = wrapper->GetInternalField(1);
+ if (external->IsExternal() &&
+ external.As<v8::External>()->Value() == v8impl::napi_wrap_name) {
+ break;
+ }
+ }
+ } while (true);
+
+ if (result != nullptr) {
+ *result = wrapper;
+ }
+ return true;
+}
+
+static void DeleteEnv(napi_env env, void* data, void* hint) {
+ delete env;
+}
+
+static
+napi_env GetEnv(v8::Local<v8::Context> context) {
+ napi_env result;
+
+ auto isolate = context->GetIsolate();
+ auto global = context->Global();
+
+ // In the case of the string for which we grab the private and the value of
+ // the private on the global object we can call .ToLocalChecked() directly
+ // because we need to stop hard if either of them is empty.
+ //
+ // Re https://github.com/nodejs/node/pull/14217#discussion_r128775149
+ auto key = v8::Private::ForApi(isolate,
+ v8::String::NewFromOneByte(isolate,
+ reinterpret_cast<const uint8_t*>("N-API Environment"),
+ v8::NewStringType::kInternalized).ToLocalChecked());
+ auto value = global->GetPrivate(context, key).ToLocalChecked();
+
+ if (value->IsExternal()) {
+ result = static_cast<napi_env>(value.As<v8::External>()->Value());
+ } else {
+ result = new napi_env__(isolate);
+ auto external = v8::External::New(isolate, result);
+
+ // We must also stop hard if the result of assigning the env to the global
+ // is either nothing or false.
+ CHECK(global->SetPrivate(context, key, external).FromJust());
+
+ // Create a self-destructing reference to external that will get rid of the
+ // napi_env when external goes out of scope.
+ Reference::New(result, external, 0, true, DeleteEnv, nullptr, nullptr);
+ }
+
+ return result;
+}
+
+static
+napi_status Unwrap(napi_env env,
+ napi_value js_object,
+ void** result,
+ v8::Local<v8::Object>* wrapper,
+ v8::Local<v8::Object>* parent = nullptr) {
+ CHECK_ARG(env, js_object);
+ CHECK_ARG(env, result);
+
+ v8::Local<v8::Value> value = v8impl::V8LocalValueFromJsValue(js_object);
+ RETURN_STATUS_IF_FALSE(env, value->IsObject(), napi_invalid_arg);
+ v8::Local<v8::Object> obj = value.As<v8::Object>();
+
+ RETURN_STATUS_IF_FALSE(
+ env, v8impl::FindWrapper(obj, wrapper, parent), napi_invalid_arg);
+
+ v8::Local<v8::Value> unwrappedValue = (*wrapper)->GetInternalField(0);
+ RETURN_STATUS_IF_FALSE(env, unwrappedValue->IsExternal(), napi_invalid_arg);
+
+ *result = unwrappedValue.As<v8::External>()->Value();
+
+ return napi_ok;
+}
+
+static
+napi_status ConcludeDeferred(napi_env env,
+ napi_deferred deferred,
+ napi_value result,
+ bool is_resolved) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, result);
+
+ v8::Local<v8::Context> context = env->isolate->GetCurrentContext();
+ v8::Persistent<v8::Value>* deferred_ref =
+ V8PersistentFromJsDeferred(deferred);
+ v8::Local<v8::Value> v8_deferred =
+ v8::Local<v8::Value>::New(env->isolate, *deferred_ref);
+
+ auto v8_resolver = v8::Local<v8::Promise::Resolver>::Cast(v8_deferred);
+
+ v8::Maybe<bool> success = is_resolved ?
+ v8_resolver->Resolve(context, v8impl::V8LocalValueFromJsValue(result)) :
+ v8_resolver->Reject(context, v8impl::V8LocalValueFromJsValue(result));
+
+ deferred_ref->Reset();
+ delete deferred_ref;
+
+ RETURN_STATUS_IF_FALSE(env, success.FromMaybe(false), napi_generic_failure);
+
+ return GET_RETURN_STATUS(env);
+}
+
+} // end of namespace v8impl
+
+// Intercepts the Node-V8 module registration callback. Converts parameters
+// to NAPI equivalents and then calls the registration callback specified
+// by the NAPI module.
+void napi_module_register_cb(v8::Local<v8::Object> exports,
+ v8::Local<v8::Value> module,
+ v8::Local<v8::Context> context,
+ void* priv) {
+ napi_module* mod = static_cast<napi_module*>(priv);
+
+ // Create a new napi_env for this module or reference one if a pre-existing
+ // one is found.
+ napi_env env = v8impl::GetEnv(context);
+
+ napi_value _exports;
+ NAPI_CALL_INTO_MODULE_THROW(env,
+ _exports = mod->nm_register_func(env,
+ v8impl::JsValueFromV8LocalValue(exports)));
+
+ // If register function returned a non-null exports object different from
+ // the exports object we passed it, set that as the "exports" property of
+ // the module.
+ if (_exports != nullptr &&
+ _exports != v8impl::JsValueFromV8LocalValue(exports)) {
+ napi_value _module = v8impl::JsValueFromV8LocalValue(module);
+ napi_set_named_property(env, _module, "exports", _exports);
+ }
+}
+
+} // end of anonymous namespace
+
+// Registers a NAPI module.
+void napi_module_register(napi_module* mod) {
+ node::node_module* nm = new node::node_module {
+ NODE_MODULE_VERSION,
+ mod->nm_flags,
+ nullptr,
+ mod->nm_filename,
+ nullptr,
+ napi_module_register_cb,
+ mod->nm_modname,
+ mod, // priv
+ nullptr,
+ };
+ node::node_module_register(nm);
+}
+
+// Warning: Keep in-sync with napi_status enum
+static
+const char* error_messages[] = {nullptr,
+ "Invalid argument",
+ "An object was expected",
+ "A string was expected",
+ "A string or symbol was expected",
+ "A function was expected",
+ "A number was expected",
+ "A boolean was expected",
+ "An array was expected",
+ "Unknown failure",
+ "An exception is pending",
+ "The async work item was cancelled",
+ "napi_escape_handle already called on scope"};
+
+static inline napi_status napi_clear_last_error(napi_env env) {
+ env->last_error.error_code = napi_ok;
+
+ // TODO(boingoing): Should this be a callback?
+ env->last_error.engine_error_code = 0;
+ env->last_error.engine_reserved = nullptr;
+ return napi_ok;
+}
+
+static inline
+napi_status napi_set_last_error(napi_env env, napi_status error_code,
+ uint32_t engine_error_code,
+ void* engine_reserved) {
+ env->last_error.error_code = error_code;
+ env->last_error.engine_error_code = engine_error_code;
+ env->last_error.engine_reserved = engine_reserved;
+ return error_code;
+}
+
+napi_status napi_get_last_error_info(napi_env env,
+ const napi_extended_error_info** result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, result);
+
+ // you must update this assert to reference the last message
+ // in the napi_status enum each time a new error message is added.
+ // We don't have a napi_status_last as this would result in an ABI
+ // change each time a message was added.
+ static_assert(
+ node::arraysize(error_messages) == napi_escape_called_twice + 1,
+ "Count of error messages must match count of error values");
+ CHECK_LE(env->last_error.error_code, napi_escape_called_twice);
+
+ // Wait until someone requests the last error information to fetch the error
+ // message string
+ env->last_error.error_message =
+ error_messages[env->last_error.error_code];
+
+ *result = &(env->last_error);
+ return napi_ok;
+}
+
+napi_status napi_fatal_exception(napi_env env, napi_value err) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, err);
+
+ v8::Local<v8::Value> local_err = v8impl::V8LocalValueFromJsValue(err);
+ v8impl::trigger_fatal_exception(env, local_err);
+
+ return napi_clear_last_error(env);
+}
+
+NAPI_NO_RETURN void napi_fatal_error(const char* location,
+ size_t location_len,
+ const char* message,
+ size_t message_len) {
+ std::string location_string;
+ std::string message_string;
+
+ if (location_len != NAPI_AUTO_LENGTH) {
+ location_string.assign(
+ const_cast<char*>(location), location_len);
+ } else {
+ location_string.assign(
+ const_cast<char*>(location), strlen(location));
+ }
+
+ if (message_len != NAPI_AUTO_LENGTH) {
+ message_string.assign(
+ const_cast<char*>(message), message_len);
+ } else {
+ message_string.assign(
+ const_cast<char*>(message), strlen(message));
+ }
+
+ node::FatalError(location_string.c_str(), message_string.c_str());
+}
+
+napi_status napi_create_function(napi_env env,
+ const char* utf8name,
+ size_t length,
+ napi_callback cb,
+ void* callback_data,
+ napi_value* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, result);
+ CHECK_ARG(env, cb);
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::Function> return_value;
+ v8::EscapableHandleScope scope(isolate);
+ v8::Local<v8::Value> cbdata =
+ v8impl::CreateFunctionCallbackData(env, cb, callback_data);
+
+ RETURN_STATUS_IF_FALSE(env, !cbdata.IsEmpty(), napi_generic_failure);
+
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+ v8::MaybeLocal<v8::Function> maybe_function =
+ v8::Function::New(context,
+ v8impl::FunctionCallbackWrapper::Invoke,
+ cbdata);
+ CHECK_MAYBE_EMPTY(env, maybe_function, napi_generic_failure);
+
+ return_value = scope.Escape(maybe_function.ToLocalChecked());
+
+ if (utf8name != nullptr) {
+ v8::Local<v8::String> name_string;
+ CHECK_NEW_FROM_UTF8_LEN(env, name_string, utf8name, length);
+ return_value->SetName(name_string);
+ }
+
+ *result = v8impl::JsValueFromV8LocalValue(return_value);
+
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_define_class(napi_env env,
+ const char* utf8name,
+ size_t length,
+ napi_callback constructor,
+ void* callback_data,
+ size_t property_count,
+ const napi_property_descriptor* properties,
+ napi_value* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, result);
+ CHECK_ARG(env, constructor);
+
+ v8::Isolate* isolate = env->isolate;
+
+ v8::EscapableHandleScope scope(isolate);
+ v8::Local<v8::Value> cbdata =
+ v8impl::CreateFunctionCallbackData(env, constructor, callback_data);
+
+ RETURN_STATUS_IF_FALSE(env, !cbdata.IsEmpty(), napi_generic_failure);
+
+ v8::Local<v8::FunctionTemplate> tpl = v8::FunctionTemplate::New(
+ isolate, v8impl::FunctionCallbackWrapper::Invoke, cbdata);
+
+ v8::Local<v8::String> name_string;
+ CHECK_NEW_FROM_UTF8_LEN(env, name_string, utf8name, length);
+ tpl->SetClassName(name_string);
+
+ size_t static_property_count = 0;
+ for (size_t i = 0; i < property_count; i++) {
+ const napi_property_descriptor* p = properties + i;
+
+ if ((p->attributes & napi_static) != 0) {
+ // Static properties are handled separately below.
+ static_property_count++;
+ continue;
+ }
+
+ v8::Local<v8::Name> property_name;
+ napi_status status =
+ v8impl::V8NameFromPropertyDescriptor(env, p, &property_name);
+
+ if (status != napi_ok) {
+ return napi_set_last_error(env, status);
+ }
+
+ v8::PropertyAttribute attributes =
+ v8impl::V8PropertyAttributesFromDescriptor(p);
+
+ // This code is similar to that in napi_define_properties(); the
+ // difference is it applies to a template instead of an object.
+ if (p->getter != nullptr || p->setter != nullptr) {
+ v8::Local<v8::Value> cbdata = v8impl::CreateAccessorCallbackData(
+ env, p->getter, p->setter, p->data);
+
+ tpl->PrototypeTemplate()->SetAccessor(
+ property_name,
+ p->getter ? v8impl::GetterCallbackWrapper::Invoke : nullptr,
+ p->setter ? v8impl::SetterCallbackWrapper::Invoke : nullptr,
+ cbdata,
+ v8::AccessControl::DEFAULT,
+ attributes);
+ } else if (p->method != nullptr) {
+ v8::Local<v8::Value> cbdata =
+ v8impl::CreateFunctionCallbackData(env, p->method, p->data);
+
+ RETURN_STATUS_IF_FALSE(env, !cbdata.IsEmpty(), napi_generic_failure);
+
+ v8::Local<v8::FunctionTemplate> t =
+ v8::FunctionTemplate::New(isolate,
+ v8impl::FunctionCallbackWrapper::Invoke,
+ cbdata,
+ v8::Signature::New(isolate, tpl));
+
+ tpl->PrototypeTemplate()->Set(property_name, t, attributes);
+ } else {
+ v8::Local<v8::Value> value = v8impl::V8LocalValueFromJsValue(p->value);
+ tpl->PrototypeTemplate()->Set(property_name, value, attributes);
+ }
+ }
+
+ *result = v8impl::JsValueFromV8LocalValue(scope.Escape(tpl->GetFunction()));
+
+ if (static_property_count > 0) {
+ std::vector<napi_property_descriptor> static_descriptors;
+ static_descriptors.reserve(static_property_count);
+
+ for (size_t i = 0; i < property_count; i++) {
+ const napi_property_descriptor* p = properties + i;
+ if ((p->attributes & napi_static) != 0) {
+ static_descriptors.push_back(*p);
+ }
+ }
+
+ napi_status status =
+ napi_define_properties(env,
+ *result,
+ static_descriptors.size(),
+ static_descriptors.data());
+ if (status != napi_ok) return status;
+ }
+
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_get_property_names(napi_env env,
+ napi_value object,
+ napi_value* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, result);
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+ v8::Local<v8::Object> obj;
+ CHECK_TO_OBJECT(env, context, obj, object);
+
+ auto maybe_propertynames = obj->GetPropertyNames(context);
+
+ CHECK_MAYBE_EMPTY(env, maybe_propertynames, napi_generic_failure);
+
+ *result = v8impl::JsValueFromV8LocalValue(
+ maybe_propertynames.ToLocalChecked());
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_set_property(napi_env env,
+ napi_value object,
+ napi_value key,
+ napi_value value) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, key);
+ CHECK_ARG(env, value);
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+ v8::Local<v8::Object> obj;
+
+ CHECK_TO_OBJECT(env, context, obj, object);
+
+ v8::Local<v8::Value> k = v8impl::V8LocalValueFromJsValue(key);
+ v8::Local<v8::Value> val = v8impl::V8LocalValueFromJsValue(value);
+
+ v8::Maybe<bool> set_maybe = obj->Set(context, k, val);
+
+ RETURN_STATUS_IF_FALSE(env, set_maybe.FromMaybe(false), napi_generic_failure);
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_has_property(napi_env env,
+ napi_value object,
+ napi_value key,
+ bool* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, result);
+ CHECK_ARG(env, key);
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+ v8::Local<v8::Object> obj;
+
+ CHECK_TO_OBJECT(env, context, obj, object);
+
+ v8::Local<v8::Value> k = v8impl::V8LocalValueFromJsValue(key);
+ v8::Maybe<bool> has_maybe = obj->Has(context, k);
+
+ CHECK_MAYBE_NOTHING(env, has_maybe, napi_generic_failure);
+
+ *result = has_maybe.FromMaybe(false);
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_get_property(napi_env env,
+ napi_value object,
+ napi_value key,
+ napi_value* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, key);
+ CHECK_ARG(env, result);
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+ v8::Local<v8::Value> k = v8impl::V8LocalValueFromJsValue(key);
+ v8::Local<v8::Object> obj;
+
+ CHECK_TO_OBJECT(env, context, obj, object);
+
+ auto get_maybe = obj->Get(context, k);
+
+ CHECK_MAYBE_EMPTY(env, get_maybe, napi_generic_failure);
+
+ v8::Local<v8::Value> val = get_maybe.ToLocalChecked();
+ *result = v8impl::JsValueFromV8LocalValue(val);
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_delete_property(napi_env env,
+ napi_value object,
+ napi_value key,
+ bool* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, key);
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+ v8::Local<v8::Value> k = v8impl::V8LocalValueFromJsValue(key);
+ v8::Local<v8::Object> obj;
+
+ CHECK_TO_OBJECT(env, context, obj, object);
+ v8::Maybe<bool> delete_maybe = obj->Delete(context, k);
+ CHECK_MAYBE_NOTHING(env, delete_maybe, napi_generic_failure);
+
+ if (result != NULL)
+ *result = delete_maybe.FromMaybe(false);
+
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_has_own_property(napi_env env,
+ napi_value object,
+ napi_value key,
+ bool* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, key);
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+ v8::Local<v8::Object> obj;
+
+ CHECK_TO_OBJECT(env, context, obj, object);
+ v8::Local<v8::Value> k = v8impl::V8LocalValueFromJsValue(key);
+ RETURN_STATUS_IF_FALSE(env, k->IsName(), napi_name_expected);
+ v8::Maybe<bool> has_maybe = obj->HasOwnProperty(context, k.As<v8::Name>());
+ CHECK_MAYBE_NOTHING(env, has_maybe, napi_generic_failure);
+ *result = has_maybe.FromMaybe(false);
+
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_set_named_property(napi_env env,
+ napi_value object,
+ const char* utf8name,
+ napi_value value) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, value);
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+ v8::Local<v8::Object> obj;
+
+ CHECK_TO_OBJECT(env, context, obj, object);
+
+ v8::Local<v8::Name> key;
+ CHECK_NEW_FROM_UTF8(env, key, utf8name);
+
+ v8::Local<v8::Value> val = v8impl::V8LocalValueFromJsValue(value);
+
+ v8::Maybe<bool> set_maybe = obj->Set(context, key, val);
+
+ RETURN_STATUS_IF_FALSE(env, set_maybe.FromMaybe(false), napi_generic_failure);
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_has_named_property(napi_env env,
+ napi_value object,
+ const char* utf8name,
+ bool* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, result);
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+ v8::Local<v8::Object> obj;
+
+ CHECK_TO_OBJECT(env, context, obj, object);
+
+ v8::Local<v8::Name> key;
+ CHECK_NEW_FROM_UTF8(env, key, utf8name);
+
+ v8::Maybe<bool> has_maybe = obj->Has(context, key);
+
+ CHECK_MAYBE_NOTHING(env, has_maybe, napi_generic_failure);
+
+ *result = has_maybe.FromMaybe(false);
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_get_named_property(napi_env env,
+ napi_value object,
+ const char* utf8name,
+ napi_value* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, result);
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+
+ v8::Local<v8::Name> key;
+ CHECK_NEW_FROM_UTF8(env, key, utf8name);
+
+ v8::Local<v8::Object> obj;
+
+ CHECK_TO_OBJECT(env, context, obj, object);
+
+ auto get_maybe = obj->Get(context, key);
+
+ CHECK_MAYBE_EMPTY(env, get_maybe, napi_generic_failure);
+
+ v8::Local<v8::Value> val = get_maybe.ToLocalChecked();
+ *result = v8impl::JsValueFromV8LocalValue(val);
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_set_element(napi_env env,
+ napi_value object,
+ uint32_t index,
+ napi_value value) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, value);
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+ v8::Local<v8::Object> obj;
+
+ CHECK_TO_OBJECT(env, context, obj, object);
+
+ v8::Local<v8::Value> val = v8impl::V8LocalValueFromJsValue(value);
+ auto set_maybe = obj->Set(context, index, val);
+
+ RETURN_STATUS_IF_FALSE(env, set_maybe.FromMaybe(false), napi_generic_failure);
+
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_has_element(napi_env env,
+ napi_value object,
+ uint32_t index,
+ bool* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, result);
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+ v8::Local<v8::Object> obj;
+
+ CHECK_TO_OBJECT(env, context, obj, object);
+
+ v8::Maybe<bool> has_maybe = obj->Has(context, index);
+
+ CHECK_MAYBE_NOTHING(env, has_maybe, napi_generic_failure);
+
+ *result = has_maybe.FromMaybe(false);
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_get_element(napi_env env,
+ napi_value object,
+ uint32_t index,
+ napi_value* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, result);
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+ v8::Local<v8::Object> obj;
+
+ CHECK_TO_OBJECT(env, context, obj, object);
+
+ auto get_maybe = obj->Get(context, index);
+
+ CHECK_MAYBE_EMPTY(env, get_maybe, napi_generic_failure);
+
+ *result = v8impl::JsValueFromV8LocalValue(get_maybe.ToLocalChecked());
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_delete_element(napi_env env,
+ napi_value object,
+ uint32_t index,
+ bool* result) {
+ NAPI_PREAMBLE(env);
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+ v8::Local<v8::Object> obj;
+
+ CHECK_TO_OBJECT(env, context, obj, object);
+ v8::Maybe<bool> delete_maybe = obj->Delete(context, index);
+ CHECK_MAYBE_NOTHING(env, delete_maybe, napi_generic_failure);
+
+ if (result != NULL)
+ *result = delete_maybe.FromMaybe(false);
+
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_define_properties(napi_env env,
+ napi_value object,
+ size_t property_count,
+ const napi_property_descriptor* properties) {
+ NAPI_PREAMBLE(env);
+ if (property_count > 0) {
+ CHECK_ARG(env, properties);
+ }
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+
+ v8::Local<v8::Object> obj;
+ CHECK_TO_OBJECT(env, context, obj, object);
+
+ for (size_t i = 0; i < property_count; i++) {
+ const napi_property_descriptor* p = &properties[i];
+
+ v8::Local<v8::Name> property_name;
+ napi_status status =
+ v8impl::V8NameFromPropertyDescriptor(env, p, &property_name);
+
+ if (status != napi_ok) {
+ return napi_set_last_error(env, status);
+ }
+
+ v8::PropertyAttribute attributes =
+ v8impl::V8PropertyAttributesFromDescriptor(p);
+
+ if (p->getter != nullptr || p->setter != nullptr) {
+ v8::Local<v8::Value> cbdata = v8impl::CreateAccessorCallbackData(
+ env,
+ p->getter,
+ p->setter,
+ p->data);
+
+ auto set_maybe = obj->SetAccessor(
+ context,
+ property_name,
+ p->getter ? v8impl::GetterCallbackWrapper::Invoke : nullptr,
+ p->setter ? v8impl::SetterCallbackWrapper::Invoke : nullptr,
+ cbdata,
+ v8::AccessControl::DEFAULT,
+ attributes);
+
+ if (!set_maybe.FromMaybe(false)) {
+ return napi_set_last_error(env, napi_invalid_arg);
+ }
+ } else if (p->method != nullptr) {
+ v8::Local<v8::Value> cbdata =
+ v8impl::CreateFunctionCallbackData(env, p->method, p->data);
+
+ CHECK_MAYBE_EMPTY(env, cbdata, napi_generic_failure);
+
+ v8::MaybeLocal<v8::Function> maybe_fn =
+ v8::Function::New(context,
+ v8impl::FunctionCallbackWrapper::Invoke,
+ cbdata);
+
+ CHECK_MAYBE_EMPTY(env, maybe_fn, napi_generic_failure);
+
+ auto define_maybe = obj->DefineOwnProperty(
+ context, property_name, maybe_fn.ToLocalChecked(), attributes);
+
+ if (!define_maybe.FromMaybe(false)) {
+ return napi_set_last_error(env, napi_generic_failure);
+ }
+ } else {
+ v8::Local<v8::Value> value = v8impl::V8LocalValueFromJsValue(p->value);
+
+ auto define_maybe =
+ obj->DefineOwnProperty(context, property_name, value, attributes);
+
+ if (!define_maybe.FromMaybe(false)) {
+ return napi_set_last_error(env, napi_invalid_arg);
+ }
+ }
+ }
+
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_is_array(napi_env env, napi_value value, bool* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, value);
+ CHECK_ARG(env, result);
+
+ v8::Local<v8::Value> val = v8impl::V8LocalValueFromJsValue(value);
+
+ *result = val->IsArray();
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_get_array_length(napi_env env,
+ napi_value value,
+ uint32_t* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, value);
+ CHECK_ARG(env, result);
+
+ v8::Local<v8::Value> val = v8impl::V8LocalValueFromJsValue(value);
+ RETURN_STATUS_IF_FALSE(env, val->IsArray(), napi_array_expected);
+
+ v8::Local<v8::Array> arr = val.As<v8::Array>();
+ *result = arr->Length();
+
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_strict_equals(napi_env env,
+ napi_value lhs,
+ napi_value rhs,
+ bool* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, lhs);
+ CHECK_ARG(env, rhs);
+ CHECK_ARG(env, result);
+
+ v8::Local<v8::Value> a = v8impl::V8LocalValueFromJsValue(lhs);
+ v8::Local<v8::Value> b = v8impl::V8LocalValueFromJsValue(rhs);
+
+ *result = a->StrictEquals(b);
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_get_prototype(napi_env env,
+ napi_value object,
+ napi_value* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, result);
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+
+ v8::Local<v8::Object> obj;
+ CHECK_TO_OBJECT(env, context, obj, object);
+
+ v8::Local<v8::Value> val = obj->GetPrototype();
+ *result = v8impl::JsValueFromV8LocalValue(val);
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_create_object(napi_env env, napi_value* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, result);
+
+ *result = v8impl::JsValueFromV8LocalValue(
+ v8::Object::New(env->isolate));
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_create_array(napi_env env, napi_value* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, result);
+
+ *result = v8impl::JsValueFromV8LocalValue(
+ v8::Array::New(env->isolate));
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_create_array_with_length(napi_env env,
+ size_t length,
+ napi_value* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, result);
+
+ *result = v8impl::JsValueFromV8LocalValue(
+ v8::Array::New(env->isolate, length));
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_create_string_latin1(napi_env env,
+ const char* str,
+ size_t length,
+ napi_value* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, result);
+
+ auto isolate = env->isolate;
+ auto str_maybe =
+ v8::String::NewFromOneByte(isolate,
+ reinterpret_cast<const uint8_t*>(str),
+ v8::NewStringType::kInternalized,
+ length);
+ CHECK_MAYBE_EMPTY(env, str_maybe, napi_generic_failure);
+
+ *result = v8impl::JsValueFromV8LocalValue(str_maybe.ToLocalChecked());
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_create_string_utf8(napi_env env,
+ const char* str,
+ size_t length,
+ napi_value* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, result);
+
+ v8::Local<v8::String> s;
+ CHECK_NEW_FROM_UTF8_LEN(env, s, str, length);
+
+ *result = v8impl::JsValueFromV8LocalValue(s);
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_create_string_utf16(napi_env env,
+ const char16_t* str,
+ size_t length,
+ napi_value* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, result);
+
+ auto isolate = env->isolate;
+ auto str_maybe =
+ v8::String::NewFromTwoByte(isolate,
+ reinterpret_cast<const uint16_t*>(str),
+ v8::NewStringType::kInternalized,
+ length);
+ CHECK_MAYBE_EMPTY(env, str_maybe, napi_generic_failure);
+
+ *result = v8impl::JsValueFromV8LocalValue(str_maybe.ToLocalChecked());
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_create_double(napi_env env,
+ double value,
+ napi_value* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, result);
+
+ *result = v8impl::JsValueFromV8LocalValue(
+ v8::Number::New(env->isolate, value));
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_create_int32(napi_env env,
+ int32_t value,
+ napi_value* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, result);
+
+ *result = v8impl::JsValueFromV8LocalValue(
+ v8::Integer::New(env->isolate, value));
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_create_uint32(napi_env env,
+ uint32_t value,
+ napi_value* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, result);
+
+ *result = v8impl::JsValueFromV8LocalValue(
+ v8::Integer::NewFromUnsigned(env->isolate, value));
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_create_int64(napi_env env,
+ int64_t value,
+ napi_value* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, result);
+
+ *result = v8impl::JsValueFromV8LocalValue(
+ v8::Number::New(env->isolate, static_cast<double>(value)));
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_get_boolean(napi_env env, bool value, napi_value* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, result);
+
+ v8::Isolate* isolate = env->isolate;
+
+ if (value) {
+ *result = v8impl::JsValueFromV8LocalValue(v8::True(isolate));
+ } else {
+ *result = v8impl::JsValueFromV8LocalValue(v8::False(isolate));
+ }
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_create_symbol(napi_env env,
+ napi_value description,
+ napi_value* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, result);
+
+ v8::Isolate* isolate = env->isolate;
+
+ if (description == nullptr) {
+ *result = v8impl::JsValueFromV8LocalValue(v8::Symbol::New(isolate));
+ } else {
+ v8::Local<v8::Value> desc = v8impl::V8LocalValueFromJsValue(description);
+ RETURN_STATUS_IF_FALSE(env, desc->IsString(), napi_string_expected);
+
+ *result = v8impl::JsValueFromV8LocalValue(
+ v8::Symbol::New(isolate, desc.As<v8::String>()));
+ }
+
+ return napi_clear_last_error(env);
+}
+
+static napi_status set_error_code(napi_env env,
+ v8::Local<v8::Value> error,
+ napi_value code,
+ const char* code_cstring) {
+ if ((code != nullptr) || (code_cstring != nullptr)) {
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+ v8::Local<v8::Object> err_object = error.As<v8::Object>();
+
+ v8::Local<v8::Value> code_value = v8impl::V8LocalValueFromJsValue(code);
+ if (code != nullptr) {
+ code_value = v8impl::V8LocalValueFromJsValue(code);
+ RETURN_STATUS_IF_FALSE(env, code_value->IsString(), napi_string_expected);
+ } else {
+ CHECK_NEW_FROM_UTF8(env, code_value, code_cstring);
+ }
+
+ v8::Local<v8::Name> code_key;
+ CHECK_NEW_FROM_UTF8(env, code_key, "code");
+
+ v8::Maybe<bool> set_maybe = err_object->Set(context, code_key, code_value);
+ RETURN_STATUS_IF_FALSE(env,
+ set_maybe.FromMaybe(false),
+ napi_generic_failure);
+
+ // now update the name to be "name [code]" where name is the
+ // original name and code is the code associated with the Error
+ v8::Local<v8::String> name_string;
+ CHECK_NEW_FROM_UTF8(env, name_string, "");
+ v8::Local<v8::Name> name_key;
+ CHECK_NEW_FROM_UTF8(env, name_key, "name");
+
+ auto maybe_name = err_object->Get(context, name_key);
+ if (!maybe_name.IsEmpty()) {
+ v8::Local<v8::Value> name = maybe_name.ToLocalChecked();
+ if (name->IsString()) {
+ name_string = v8::String::Concat(name_string, name.As<v8::String>());
+ }
+ }
+ name_string = v8::String::Concat(name_string,
+ FIXED_ONE_BYTE_STRING(isolate, " ["));
+ name_string = v8::String::Concat(name_string, code_value.As<v8::String>());
+ name_string = v8::String::Concat(name_string,
+ FIXED_ONE_BYTE_STRING(isolate, "]"));
+
+ set_maybe = err_object->Set(context, name_key, name_string);
+ RETURN_STATUS_IF_FALSE(env,
+ set_maybe.FromMaybe(false),
+ napi_generic_failure);
+ }
+ return napi_ok;
+}
+
+napi_status napi_create_error(napi_env env,
+ napi_value code,
+ napi_value msg,
+ napi_value* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, msg);
+ CHECK_ARG(env, result);
+
+ v8::Local<v8::Value> message_value = v8impl::V8LocalValueFromJsValue(msg);
+ RETURN_STATUS_IF_FALSE(env, message_value->IsString(), napi_string_expected);
+
+ v8::Local<v8::Value> error_obj =
+ v8::Exception::Error(message_value.As<v8::String>());
+ napi_status status = set_error_code(env, error_obj, code, nullptr);
+ if (status != napi_ok) return status;
+
+ *result = v8impl::JsValueFromV8LocalValue(error_obj);
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_create_type_error(napi_env env,
+ napi_value code,
+ napi_value msg,
+ napi_value* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, msg);
+ CHECK_ARG(env, result);
+
+ v8::Local<v8::Value> message_value = v8impl::V8LocalValueFromJsValue(msg);
+ RETURN_STATUS_IF_FALSE(env, message_value->IsString(), napi_string_expected);
+
+ v8::Local<v8::Value> error_obj =
+ v8::Exception::TypeError(message_value.As<v8::String>());
+ napi_status status = set_error_code(env, error_obj, code, nullptr);
+ if (status != napi_ok) return status;
+
+ *result = v8impl::JsValueFromV8LocalValue(error_obj);
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_create_range_error(napi_env env,
+ napi_value code,
+ napi_value msg,
+ napi_value* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, msg);
+ CHECK_ARG(env, result);
+
+ v8::Local<v8::Value> message_value = v8impl::V8LocalValueFromJsValue(msg);
+ RETURN_STATUS_IF_FALSE(env, message_value->IsString(), napi_string_expected);
+
+ v8::Local<v8::Value> error_obj =
+ v8::Exception::RangeError(message_value.As<v8::String>());
+ napi_status status = set_error_code(env, error_obj, code, nullptr);
+ if (status != napi_ok) return status;
+
+ *result = v8impl::JsValueFromV8LocalValue(error_obj);
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_typeof(napi_env env,
+ napi_value value,
+ napi_valuetype* result) {
+ // Omit NAPI_PREAMBLE and GET_RETURN_STATUS because V8 calls here cannot throw
+ // JS exceptions.
+ CHECK_ENV(env);
+ CHECK_ARG(env, value);
+ CHECK_ARG(env, result);
+
+ v8::Local<v8::Value> v = v8impl::V8LocalValueFromJsValue(value);
+
+ if (v->IsNumber()) {
+ *result = napi_number;
+ } else if (v->IsString()) {
+ *result = napi_string;
+ } else if (v->IsFunction()) {
+ // This test has to come before IsObject because IsFunction
+ // implies IsObject
+ *result = napi_function;
+ } else if (v->IsExternal()) {
+ // This test has to come before IsObject because IsExternal
+ // implies IsObject
+ *result = napi_external;
+ } else if (v->IsObject()) {
+ *result = napi_object;
+ } else if (v->IsBoolean()) {
+ *result = napi_boolean;
+ } else if (v->IsUndefined()) {
+ *result = napi_undefined;
+ } else if (v->IsSymbol()) {
+ *result = napi_symbol;
+ } else if (v->IsNull()) {
+ *result = napi_null;
+ } else {
+ // Should not get here unless V8 has added some new kind of value.
+ return napi_set_last_error(env, napi_invalid_arg);
+ }
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_get_undefined(napi_env env, napi_value* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, result);
+
+ *result = v8impl::JsValueFromV8LocalValue(
+ v8::Undefined(env->isolate));
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_get_null(napi_env env, napi_value* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, result);
+
+ *result = v8impl::JsValueFromV8LocalValue(
+ v8::Null(env->isolate));
+
+ return napi_clear_last_error(env);
+}
+
+// Gets all callback info in a single call. (Ugly, but faster.)
+napi_status napi_get_cb_info(
+ napi_env env, // [in] NAPI environment handle
+ napi_callback_info cbinfo, // [in] Opaque callback-info handle
+ size_t* argc, // [in-out] Specifies the size of the provided argv array
+ // and receives the actual count of args.
+ napi_value* argv, // [out] Array of values
+ napi_value* this_arg, // [out] Receives the JS 'this' arg for the call
+ void** data) { // [out] Receives the data pointer for the callback.
+ CHECK_ENV(env);
+ CHECK_ARG(env, cbinfo);
+
+ v8impl::CallbackWrapper* info =
+ reinterpret_cast<v8impl::CallbackWrapper*>(cbinfo);
+
+ if (argv != nullptr) {
+ CHECK_ARG(env, argc);
+ info->Args(argv, *argc);
+ }
+ if (argc != nullptr) {
+ *argc = info->ArgsLength();
+ }
+ if (this_arg != nullptr) {
+ *this_arg = info->This();
+ }
+ if (data != nullptr) {
+ *data = info->Data();
+ }
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_get_new_target(napi_env env,
+ napi_callback_info cbinfo,
+ napi_value* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, cbinfo);
+ CHECK_ARG(env, result);
+
+ v8impl::CallbackWrapper* info =
+ reinterpret_cast<v8impl::CallbackWrapper*>(cbinfo);
+
+ *result = info->GetNewTarget();
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_call_function(napi_env env,
+ napi_value recv,
+ napi_value func,
+ size_t argc,
+ const napi_value* argv,
+ napi_value* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, recv);
+ if (argc > 0) {
+ CHECK_ARG(env, argv);
+ }
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+
+ v8::Local<v8::Value> v8recv = v8impl::V8LocalValueFromJsValue(recv);
+
+ v8::Local<v8::Function> v8func;
+ CHECK_TO_FUNCTION(env, v8func, func);
+
+ auto maybe = v8func->Call(context, v8recv, argc,
+ reinterpret_cast<v8::Local<v8::Value>*>(const_cast<napi_value*>(argv)));
+
+ if (try_catch.HasCaught()) {
+ return napi_set_last_error(env, napi_pending_exception);
+ } else {
+ if (result != nullptr) {
+ CHECK_MAYBE_EMPTY(env, maybe, napi_generic_failure);
+ *result = v8impl::JsValueFromV8LocalValue(maybe.ToLocalChecked());
+ }
+ return napi_clear_last_error(env);
+ }
+}
+
+napi_status napi_get_global(napi_env env, napi_value* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, result);
+
+ v8::Isolate* isolate = env->isolate;
+ // TODO(ianhall): what if we need the global object from a different
+ // context in the same isolate?
+ // Should napi_env be the current context rather than the current isolate?
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+ *result = v8impl::JsValueFromV8LocalValue(context->Global());
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_throw(napi_env env, napi_value error) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, error);
+
+ v8::Isolate* isolate = env->isolate;
+
+ isolate->ThrowException(v8impl::V8LocalValueFromJsValue(error));
+ // any VM calls after this point and before returning
+ // to the javascript invoker will fail
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_throw_error(napi_env env,
+ const char* code,
+ const char* msg) {
+ NAPI_PREAMBLE(env);
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::String> str;
+ CHECK_NEW_FROM_UTF8(env, str, msg);
+
+ v8::Local<v8::Value> error_obj = v8::Exception::Error(str);
+ napi_status status = set_error_code(env, error_obj, nullptr, code);
+ if (status != napi_ok) return status;
+
+ isolate->ThrowException(error_obj);
+ // any VM calls after this point and before returning
+ // to the javascript invoker will fail
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_throw_type_error(napi_env env,
+ const char* code,
+ const char* msg) {
+ NAPI_PREAMBLE(env);
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::String> str;
+ CHECK_NEW_FROM_UTF8(env, str, msg);
+
+ v8::Local<v8::Value> error_obj = v8::Exception::TypeError(str);
+ napi_status status = set_error_code(env, error_obj, nullptr, code);
+ if (status != napi_ok) return status;
+
+ isolate->ThrowException(error_obj);
+ // any VM calls after this point and before returning
+ // to the javascript invoker will fail
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_throw_range_error(napi_env env,
+ const char* code,
+ const char* msg) {
+ NAPI_PREAMBLE(env);
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::String> str;
+ CHECK_NEW_FROM_UTF8(env, str, msg);
+
+ v8::Local<v8::Value> error_obj = v8::Exception::RangeError(str);
+ napi_status status = set_error_code(env, error_obj, nullptr, code);
+ if (status != napi_ok) return status;
+
+ isolate->ThrowException(error_obj);
+ // any VM calls after this point and before returning
+ // to the javascript invoker will fail
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_is_error(napi_env env, napi_value value, bool* result) {
+ // Omit NAPI_PREAMBLE and GET_RETURN_STATUS because V8 calls here cannot
+ // throw JS exceptions.
+ CHECK_ENV(env);
+ CHECK_ARG(env, value);
+ CHECK_ARG(env, result);
+
+ v8::Local<v8::Value> val = v8impl::V8LocalValueFromJsValue(value);
+ *result = val->IsNativeError();
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_get_value_double(napi_env env,
+ napi_value value,
+ double* result) {
+ // Omit NAPI_PREAMBLE and GET_RETURN_STATUS because V8 calls here cannot throw
+ // JS exceptions.
+ CHECK_ENV(env);
+ CHECK_ARG(env, value);
+ CHECK_ARG(env, result);
+
+ v8::Local<v8::Value> val = v8impl::V8LocalValueFromJsValue(value);
+ RETURN_STATUS_IF_FALSE(env, val->IsNumber(), napi_number_expected);
+
+ *result = val.As<v8::Number>()->Value();
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_get_value_int32(napi_env env,
+ napi_value value,
+ int32_t* result) {
+ // Omit NAPI_PREAMBLE and GET_RETURN_STATUS because V8 calls here cannot throw
+ // JS exceptions.
+ CHECK_ENV(env);
+ CHECK_ARG(env, value);
+ CHECK_ARG(env, result);
+
+ v8::Local<v8::Value> val = v8impl::V8LocalValueFromJsValue(value);
+
+ if (val->IsInt32()) {
+ *result = val.As<v8::Int32>()->Value();
+ } else {
+ RETURN_STATUS_IF_FALSE(env, val->IsNumber(), napi_number_expected);
+
+ // Empty context: https://github.com/nodejs/node/issues/14379
+ v8::Local<v8::Context> context;
+ *result = val->Int32Value(context).FromJust();
+ }
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_get_value_uint32(napi_env env,
+ napi_value value,
+ uint32_t* result) {
+ // Omit NAPI_PREAMBLE and GET_RETURN_STATUS because V8 calls here cannot throw
+ // JS exceptions.
+ CHECK_ENV(env);
+ CHECK_ARG(env, value);
+ CHECK_ARG(env, result);
+
+ v8::Local<v8::Value> val = v8impl::V8LocalValueFromJsValue(value);
+
+ if (val->IsUint32()) {
+ *result = val.As<v8::Uint32>()->Value();
+ } else {
+ RETURN_STATUS_IF_FALSE(env, val->IsNumber(), napi_number_expected);
+
+ // Empty context: https://github.com/nodejs/node/issues/14379
+ v8::Local<v8::Context> context;
+ *result = val->Uint32Value(context).FromJust();
+ }
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_get_value_int64(napi_env env,
+ napi_value value,
+ int64_t* result) {
+ // Omit NAPI_PREAMBLE and GET_RETURN_STATUS because V8 calls here cannot throw
+ // JS exceptions.
+ CHECK_ENV(env);
+ CHECK_ARG(env, value);
+ CHECK_ARG(env, result);
+
+ v8::Local<v8::Value> val = v8impl::V8LocalValueFromJsValue(value);
+
+ // This is still a fast path very likely to be taken.
+ if (val->IsInt32()) {
+ *result = val.As<v8::Int32>()->Value();
+ return napi_clear_last_error(env);
+ }
+
+ RETURN_STATUS_IF_FALSE(env, val->IsNumber(), napi_number_expected);
+
+ // v8::Value::IntegerValue() converts NaN to INT64_MIN, inconsistent with
+ // v8::Value::Int32Value() that converts NaN to 0. So special-case NaN here.
+ double doubleValue = val.As<v8::Number>()->Value();
+ if (std::isnan(doubleValue)) {
+ *result = 0;
+ } else {
+ // Empty context: https://github.com/nodejs/node/issues/14379
+ v8::Local<v8::Context> context;
+ *result = val->IntegerValue(context).FromJust();
+ }
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_get_value_bool(napi_env env, napi_value value, bool* result) {
+ // Omit NAPI_PREAMBLE and GET_RETURN_STATUS because V8 calls here cannot throw
+ // JS exceptions.
+ CHECK_ENV(env);
+ CHECK_ARG(env, value);
+ CHECK_ARG(env, result);
+
+ v8::Local<v8::Value> val = v8impl::V8LocalValueFromJsValue(value);
+ RETURN_STATUS_IF_FALSE(env, val->IsBoolean(), napi_boolean_expected);
+
+ *result = val.As<v8::Boolean>()->Value();
+
+ return napi_clear_last_error(env);
+}
+
+// Copies a JavaScript string into a LATIN-1 string buffer. The result is the
+// number of bytes (excluding the null terminator) copied into buf.
+// A sufficient buffer size should be greater than the length of string,
+// reserving space for null terminator.
+// If bufsize is insufficient, the string will be truncated and null terminated.
+// If buf is NULL, this method returns the length of the string (in bytes)
+// via the result parameter.
+// The result argument is optional unless buf is NULL.
+napi_status napi_get_value_string_latin1(napi_env env,
+ napi_value value,
+ char* buf,
+ size_t bufsize,
+ size_t* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, value);
+
+ v8::Local<v8::Value> val = v8impl::V8LocalValueFromJsValue(value);
+ RETURN_STATUS_IF_FALSE(env, val->IsString(), napi_string_expected);
+
+ if (!buf) {
+ CHECK_ARG(env, result);
+ *result = val.As<v8::String>()->Length();
+ } else {
+ int copied = val.As<v8::String>()->WriteOneByte(
+ reinterpret_cast<uint8_t*>(buf), 0, bufsize - 1,
+ v8::String::NO_NULL_TERMINATION);
+
+ buf[copied] = '\0';
+ if (result != nullptr) {
+ *result = copied;
+ }
+ }
+
+ return napi_clear_last_error(env);
+}
+
+// Copies a JavaScript string into a UTF-8 string buffer. The result is the
+// number of bytes (excluding the null terminator) copied into buf.
+// A sufficient buffer size should be greater than the length of string,
+// reserving space for null terminator.
+// If bufsize is insufficient, the string will be truncated and null terminated.
+// If buf is NULL, this method returns the length of the string (in bytes)
+// via the result parameter.
+// The result argument is optional unless buf is NULL.
+napi_status napi_get_value_string_utf8(napi_env env,
+ napi_value value,
+ char* buf,
+ size_t bufsize,
+ size_t* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, value);
+
+ v8::Local<v8::Value> val = v8impl::V8LocalValueFromJsValue(value);
+ RETURN_STATUS_IF_FALSE(env, val->IsString(), napi_string_expected);
+
+ if (!buf) {
+ CHECK_ARG(env, result);
+ *result = val.As<v8::String>()->Utf8Length();
+ } else {
+ int copied = val.As<v8::String>()->WriteUtf8(
+ buf, bufsize - 1, nullptr, v8::String::REPLACE_INVALID_UTF8 |
+ v8::String::NO_NULL_TERMINATION);
+
+ buf[copied] = '\0';
+ if (result != nullptr) {
+ *result = copied;
+ }
+ }
+
+ return napi_clear_last_error(env);
+}
+
+// Copies a JavaScript string into a UTF-16 string buffer. The result is the
+// number of 2-byte code units (excluding the null terminator) copied into buf.
+// A sufficient buffer size should be greater than the length of string,
+// reserving space for null terminator.
+// If bufsize is insufficient, the string will be truncated and null terminated.
+// If buf is NULL, this method returns the length of the string (in 2-byte
+// code units) via the result parameter.
+// The result argument is optional unless buf is NULL.
+napi_status napi_get_value_string_utf16(napi_env env,
+ napi_value value,
+ char16_t* buf,
+ size_t bufsize,
+ size_t* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, value);
+
+ v8::Local<v8::Value> val = v8impl::V8LocalValueFromJsValue(value);
+ RETURN_STATUS_IF_FALSE(env, val->IsString(), napi_string_expected);
+
+ if (!buf) {
+ CHECK_ARG(env, result);
+ // V8 assumes UTF-16 length is the same as the number of characters.
+ *result = val.As<v8::String>()->Length();
+ } else {
+ int copied = val.As<v8::String>()->Write(
+ reinterpret_cast<uint16_t*>(buf), 0, bufsize - 1,
+ v8::String::NO_NULL_TERMINATION);
+
+ buf[copied] = '\0';
+ if (result != nullptr) {
+ *result = copied;
+ }
+ }
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_coerce_to_object(napi_env env,
+ napi_value value,
+ napi_value* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, value);
+ CHECK_ARG(env, result);
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+ v8::Local<v8::Object> obj;
+ CHECK_TO_OBJECT(env, context, obj, value);
+
+ *result = v8impl::JsValueFromV8LocalValue(obj);
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_coerce_to_bool(napi_env env,
+ napi_value value,
+ napi_value* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, value);
+ CHECK_ARG(env, result);
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+ v8::Local<v8::Boolean> b;
+
+ CHECK_TO_BOOL(env, context, b, value);
+
+ *result = v8impl::JsValueFromV8LocalValue(b);
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_coerce_to_number(napi_env env,
+ napi_value value,
+ napi_value* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, value);
+ CHECK_ARG(env, result);
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+ v8::Local<v8::Number> num;
+
+ CHECK_TO_NUMBER(env, context, num, value);
+
+ *result = v8impl::JsValueFromV8LocalValue(num);
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_coerce_to_string(napi_env env,
+ napi_value value,
+ napi_value* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, value);
+ CHECK_ARG(env, result);
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+ v8::Local<v8::String> str;
+
+ CHECK_TO_STRING(env, context, str, value);
+
+ *result = v8impl::JsValueFromV8LocalValue(str);
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_wrap(napi_env env,
+ napi_value js_object,
+ void* native_object,
+ napi_finalize finalize_cb,
+ void* finalize_hint,
+ napi_ref* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, js_object);
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+
+ v8::Local<v8::Value> value = v8impl::V8LocalValueFromJsValue(js_object);
+ RETURN_STATUS_IF_FALSE(env, value->IsObject(), napi_invalid_arg);
+ v8::Local<v8::Object> obj = value.As<v8::Object>();
+
+ // If we've already wrapped this object, we error out.
+ RETURN_STATUS_IF_FALSE(env, !v8impl::FindWrapper(obj), napi_invalid_arg);
+
+ // Create a wrapper object with an internal field to hold the wrapped pointer
+ // and a second internal field to identify the owner as N-API.
+ v8::Local<v8::ObjectTemplate> wrapper_template;
+ ENV_OBJECT_TEMPLATE(env, wrap, wrapper_template, v8impl::kWrapperFields);
+
+ auto maybe_object = wrapper_template->NewInstance(context);
+ CHECK_MAYBE_EMPTY(env, maybe_object, napi_generic_failure);
+ v8::Local<v8::Object> wrapper = maybe_object.ToLocalChecked();
+
+ // Store the pointer as an external in the wrapper.
+ wrapper->SetInternalField(0, v8::External::New(isolate, native_object));
+ wrapper->SetInternalField(1, v8::External::New(isolate,
+ reinterpret_cast<void*>(const_cast<char*>(v8impl::napi_wrap_name))));
+
+ // Insert the wrapper into the object's prototype chain.
+ v8::Local<v8::Value> proto = obj->GetPrototype();
+ CHECK(wrapper->SetPrototype(context, proto).FromJust());
+ CHECK(obj->SetPrototype(context, wrapper).FromJust());
+
+ v8impl::Reference* reference = nullptr;
+ if (result != nullptr) {
+ // The returned reference should be deleted via napi_delete_reference()
+ // ONLY in response to the finalize callback invocation. (If it is deleted
+ // before then, then the finalize callback will never be invoked.)
+ // Therefore a finalize callback is required when returning a reference.
+ CHECK_ARG(env, finalize_cb);
+ reference = v8impl::Reference::New(
+ env, obj, 0, false, finalize_cb, native_object, finalize_hint);
+ *result = reinterpret_cast<napi_ref>(reference);
+ } else if (finalize_cb != nullptr) {
+ // Create a self-deleting reference just for the finalize callback.
+ reference = v8impl::Reference::New(
+ env, obj, 0, true, finalize_cb, native_object, finalize_hint);
+ }
+
+ if (reference != nullptr) {
+ wrapper->SetInternalField(2, v8::External::New(isolate, reference));
+ }
+
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_unwrap(napi_env env, napi_value obj, void** result) {
+ // Omit NAPI_PREAMBLE and GET_RETURN_STATUS because V8 calls here cannot throw
+ // JS exceptions.
+ CHECK_ENV(env);
+ v8::Local<v8::Object> wrapper;
+ return napi_set_last_error(env, v8impl::Unwrap(env, obj, result, &wrapper));
+}
+
+napi_status napi_remove_wrap(napi_env env, napi_value obj, void** result) {
+ NAPI_PREAMBLE(env);
+ v8::Local<v8::Object> wrapper;
+ v8::Local<v8::Object> parent;
+ napi_status status = v8impl::Unwrap(env, obj, result, &wrapper, &parent);
+ if (status != napi_ok) {
+ return napi_set_last_error(env, status);
+ }
+
+ v8::Local<v8::Value> external = wrapper->GetInternalField(2);
+ if (external->IsExternal()) {
+ v8impl::Reference::Delete(
+ static_cast<v8impl::Reference*>(external.As<v8::External>()->Value()));
+ }
+
+ if (!parent.IsEmpty()) {
+ v8::Maybe<bool> maybe = parent->SetPrototype(
+ env->isolate->GetCurrentContext(), wrapper->GetPrototype());
+ CHECK_MAYBE_NOTHING(env, maybe, napi_generic_failure);
+ if (!maybe.FromMaybe(false)) {
+ return napi_set_last_error(env, napi_generic_failure);
+ }
+ }
+
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_create_external(napi_env env,
+ void* data,
+ napi_finalize finalize_cb,
+ void* finalize_hint,
+ napi_value* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, result);
+
+ v8::Isolate* isolate = env->isolate;
+
+ v8::Local<v8::Value> external_value = v8::External::New(isolate, data);
+
+ // The Reference object will delete itself after invoking the finalizer
+ // callback.
+ v8impl::Reference::New(env,
+ external_value,
+ 0,
+ true,
+ finalize_cb,
+ data,
+ finalize_hint);
+
+ *result = v8impl::JsValueFromV8LocalValue(external_value);
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_get_value_external(napi_env env,
+ napi_value value,
+ void** result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, value);
+ CHECK_ARG(env, result);
+
+ v8::Local<v8::Value> val = v8impl::V8LocalValueFromJsValue(value);
+ RETURN_STATUS_IF_FALSE(env, val->IsExternal(), napi_invalid_arg);
+
+ v8::Local<v8::External> external_value = val.As<v8::External>();
+ *result = external_value->Value();
+
+ return napi_clear_last_error(env);
+}
+
+// Set initial_refcount to 0 for a weak reference, >0 for a strong reference.
+napi_status napi_create_reference(napi_env env,
+ napi_value value,
+ uint32_t initial_refcount,
+ napi_ref* result) {
+ // Omit NAPI_PREAMBLE and GET_RETURN_STATUS because V8 calls here cannot throw
+ // JS exceptions.
+ CHECK_ENV(env);
+ CHECK_ARG(env, value);
+ CHECK_ARG(env, result);
+
+ v8::Local<v8::Value> v8_value = v8impl::V8LocalValueFromJsValue(value);
+
+ if (!(v8_value->IsObject() || v8_value->IsFunction())) {
+ return napi_set_last_error(env, napi_object_expected);
+ }
+
+ v8impl::Reference* reference =
+ v8impl::Reference::New(env, v8_value, initial_refcount, false);
+
+ *result = reinterpret_cast<napi_ref>(reference);
+ return napi_clear_last_error(env);
+}
+
+// Deletes a reference. The referenced value is released, and may be GC'd unless
+// there are other references to it.
+napi_status napi_delete_reference(napi_env env, napi_ref ref) {
+ // Omit NAPI_PREAMBLE and GET_RETURN_STATUS because V8 calls here cannot throw
+ // JS exceptions.
+ CHECK_ENV(env);
+ CHECK_ARG(env, ref);
+
+ v8impl::Reference::Delete(reinterpret_cast<v8impl::Reference*>(ref));
+
+ return napi_clear_last_error(env);
+}
+
+// Increments the reference count, optionally returning the resulting count.
+// After this call the reference will be a strong reference because its
+// refcount is >0, and the referenced object is effectively "pinned".
+// Calling this when the refcount is 0 and the object is unavailable
+// results in an error.
+napi_status napi_reference_ref(napi_env env, napi_ref ref, uint32_t* result) {
+ // Omit NAPI_PREAMBLE and GET_RETURN_STATUS because V8 calls here cannot throw
+ // JS exceptions.
+ CHECK_ENV(env);
+ CHECK_ARG(env, ref);
+
+ v8impl::Reference* reference = reinterpret_cast<v8impl::Reference*>(ref);
+ uint32_t count = reference->Ref();
+
+ if (result != nullptr) {
+ *result = count;
+ }
+
+ return napi_clear_last_error(env);
+}
+
+// Decrements the reference count, optionally returning the resulting count. If
+// the result is 0 the reference is now weak and the object may be GC'd at any
+// time if there are no other references. Calling this when the refcount is
+// already 0 results in an error.
+napi_status napi_reference_unref(napi_env env, napi_ref ref, uint32_t* result) {
+ // Omit NAPI_PREAMBLE and GET_RETURN_STATUS because V8 calls here cannot throw
+ // JS exceptions.
+ CHECK_ENV(env);
+ CHECK_ARG(env, ref);
+
+ v8impl::Reference* reference = reinterpret_cast<v8impl::Reference*>(ref);
+
+ if (reference->RefCount() == 0) {
+ return napi_set_last_error(env, napi_generic_failure);
+ }
+
+ uint32_t count = reference->Unref();
+
+ if (result != nullptr) {
+ *result = count;
+ }
+
+ return napi_clear_last_error(env);
+}
+
+// Attempts to get a referenced value. If the reference is weak, the value might
+// no longer be available, in that case the call is still successful but the
+// result is NULL.
+napi_status napi_get_reference_value(napi_env env,
+ napi_ref ref,
+ napi_value* result) {
+ // Omit NAPI_PREAMBLE and GET_RETURN_STATUS because V8 calls here cannot throw
+ // JS exceptions.
+ CHECK_ENV(env);
+ CHECK_ARG(env, ref);
+ CHECK_ARG(env, result);
+
+ v8impl::Reference* reference = reinterpret_cast<v8impl::Reference*>(ref);
+ *result = v8impl::JsValueFromV8LocalValue(reference->Get());
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_open_handle_scope(napi_env env, napi_handle_scope* result) {
+ // Omit NAPI_PREAMBLE and GET_RETURN_STATUS because V8 calls here cannot throw
+ // JS exceptions.
+ CHECK_ENV(env);
+ CHECK_ARG(env, result);
+
+ *result = v8impl::JsHandleScopeFromV8HandleScope(
+ new v8impl::HandleScopeWrapper(env->isolate));
+ env->open_handle_scopes++;
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_close_handle_scope(napi_env env, napi_handle_scope scope) {
+ // Omit NAPI_PREAMBLE and GET_RETURN_STATUS because V8 calls here cannot throw
+ // JS exceptions.
+ CHECK_ENV(env);
+ CHECK_ARG(env, scope);
+ if (env->open_handle_scopes == 0) {
+ return napi_handle_scope_mismatch;
+ }
+
+ env->open_handle_scopes--;
+ delete v8impl::V8HandleScopeFromJsHandleScope(scope);
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_open_escapable_handle_scope(
+ napi_env env,
+ napi_escapable_handle_scope* result) {
+ // Omit NAPI_PREAMBLE and GET_RETURN_STATUS because V8 calls here cannot throw
+ // JS exceptions.
+ CHECK_ENV(env);
+ CHECK_ARG(env, result);
+
+ *result = v8impl::JsEscapableHandleScopeFromV8EscapableHandleScope(
+ new v8impl::EscapableHandleScopeWrapper(env->isolate));
+ env->open_handle_scopes++;
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_close_escapable_handle_scope(
+ napi_env env,
+ napi_escapable_handle_scope scope) {
+ // Omit NAPI_PREAMBLE and GET_RETURN_STATUS because V8 calls here cannot throw
+ // JS exceptions.
+ CHECK_ENV(env);
+ CHECK_ARG(env, scope);
+ if (env->open_handle_scopes == 0) {
+ return napi_handle_scope_mismatch;
+ }
+
+ delete v8impl::V8EscapableHandleScopeFromJsEscapableHandleScope(scope);
+ env->open_handle_scopes--;
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_escape_handle(napi_env env,
+ napi_escapable_handle_scope scope,
+ napi_value escapee,
+ napi_value* result) {
+ // Omit NAPI_PREAMBLE and GET_RETURN_STATUS because V8 calls here cannot throw
+ // JS exceptions.
+ CHECK_ENV(env);
+ CHECK_ARG(env, scope);
+ CHECK_ARG(env, escapee);
+ CHECK_ARG(env, result);
+
+ v8impl::EscapableHandleScopeWrapper* s =
+ v8impl::V8EscapableHandleScopeFromJsEscapableHandleScope(scope);
+ if (!s->escape_called()) {
+ *result = v8impl::JsValueFromV8LocalValue(
+ s->Escape(v8impl::V8LocalValueFromJsValue(escapee)));
+ return napi_clear_last_error(env);
+ }
+ return napi_set_last_error(env, napi_escape_called_twice);
+}
+
+napi_status napi_new_instance(napi_env env,
+ napi_value constructor,
+ size_t argc,
+ const napi_value* argv,
+ napi_value* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, constructor);
+ if (argc > 0) {
+ CHECK_ARG(env, argv);
+ }
+ CHECK_ARG(env, result);
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+
+ v8::Local<v8::Function> ctor;
+ CHECK_TO_FUNCTION(env, ctor, constructor);
+
+ auto maybe = ctor->NewInstance(context, argc,
+ reinterpret_cast<v8::Local<v8::Value>*>(const_cast<napi_value*>(argv)));
+
+ CHECK_MAYBE_EMPTY(env, maybe, napi_generic_failure);
+
+ *result = v8impl::JsValueFromV8LocalValue(maybe.ToLocalChecked());
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_instanceof(napi_env env,
+ napi_value object,
+ napi_value constructor,
+ bool* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, object);
+ CHECK_ARG(env, result);
+
+ *result = false;
+
+ v8::Local<v8::Object> ctor;
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+
+ CHECK_TO_OBJECT(env, context, ctor, constructor);
+
+ if (!ctor->IsFunction()) {
+ napi_throw_type_error(env,
+ "ERR_NAPI_CONS_FUNCTION",
+ "Constructor must be a function");
+
+ return napi_set_last_error(env, napi_function_expected);
+ }
+
+ if (env->has_instance_available) {
+ napi_value value, js_result = nullptr, has_instance = nullptr;
+ napi_status status = napi_generic_failure;
+ napi_valuetype value_type;
+
+ // Get "Symbol" from the global object
+ if (env->has_instance.IsEmpty()) {
+ status = napi_get_global(env, &value);
+ if (status != napi_ok) return status;
+ status = napi_get_named_property(env, value, "Symbol", &value);
+ if (status != napi_ok) return status;
+ status = napi_typeof(env, value, &value_type);
+ if (status != napi_ok) return status;
+
+ // Get "hasInstance" from Symbol
+ if (value_type == napi_function) {
+ status = napi_get_named_property(env, value, "hasInstance", &value);
+ if (status != napi_ok) return status;
+ status = napi_typeof(env, value, &value_type);
+ if (status != napi_ok) return status;
+
+ // Store Symbol.hasInstance in a global persistent reference
+ if (value_type == napi_symbol) {
+ env->has_instance.Reset(env->isolate,
+ v8impl::V8LocalValueFromJsValue(value));
+ has_instance = value;
+ }
+ }
+ } else {
+ has_instance = v8impl::JsValueFromV8LocalValue(
+ v8::Local<v8::Value>::New(env->isolate, env->has_instance));
+ }
+
+ if (has_instance) {
+ status = napi_get_property(env, constructor, has_instance, &value);
+ if (status != napi_ok) return status;
+ status = napi_typeof(env, value, &value_type);
+ if (status != napi_ok) return status;
+
+ // Call the function to determine whether the object is an instance of the
+ // constructor
+ if (value_type == napi_function) {
+ status = napi_call_function(env, constructor, value, 1, &object,
+ &js_result);
+ if (status != napi_ok) return status;
+ return napi_get_value_bool(env, js_result, result);
+ }
+ }
+
+ env->has_instance_available = false;
+ }
+
+ // If running constructor[Symbol.hasInstance](object) did not work, we perform
+ // a traditional instanceof (early Node.js 6.x).
+
+ v8::Local<v8::String> prototype_string;
+ CHECK_NEW_FROM_UTF8(env, prototype_string, "prototype");
+
+ auto maybe_prototype = ctor->Get(context, prototype_string);
+ CHECK_MAYBE_EMPTY(env, maybe_prototype, napi_generic_failure);
+
+ v8::Local<v8::Value> prototype_property = maybe_prototype.ToLocalChecked();
+ if (!prototype_property->IsObject()) {
+ napi_throw_type_error(
+ env,
+ "ERR_NAPI_CONS_PROTOTYPE_OBJECT",
+ "Constructor.prototype must be an object");
+
+ return napi_set_last_error(env, napi_object_expected);
+ }
+
+ auto maybe_ctor = prototype_property->ToObject(context);
+ CHECK_MAYBE_EMPTY(env, maybe_ctor, napi_generic_failure);
+ ctor = maybe_ctor.ToLocalChecked();
+
+ v8::Local<v8::Value> current_obj = v8impl::V8LocalValueFromJsValue(object);
+ if (!current_obj->StrictEquals(ctor)) {
+ for (v8::Local<v8::Value> original_obj = current_obj;
+ !(current_obj->IsNull() || current_obj->IsUndefined());) {
+ if (current_obj->StrictEquals(ctor)) {
+ *result = !(original_obj->IsNumber() ||
+ original_obj->IsBoolean() ||
+ original_obj->IsString());
+ break;
+ }
+ v8::Local<v8::Object> obj;
+ CHECK_TO_OBJECT(env, context, obj, v8impl::JsValueFromV8LocalValue(
+ current_obj));
+ current_obj = obj->GetPrototype();
+ }
+ }
+
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_async_init(napi_env env,
+ napi_value async_resource,
+ napi_value async_resource_name,
+ napi_async_context* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, async_resource_name);
+ CHECK_ARG(env, result);
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+
+ v8::Local<v8::Object> v8_resource;
+ if (async_resource != nullptr) {
+ CHECK_TO_OBJECT(env, context, v8_resource, async_resource);
+ } else {
+ v8_resource = v8::Object::New(isolate);
+ }
+
+ v8::Local<v8::String> v8_resource_name;
+ CHECK_TO_STRING(env, context, v8_resource_name, async_resource_name);
+
+ // TODO(jasongin): Consider avoiding allocation here by using
+ // a tagged pointer with 2×31 bit fields instead.
+ node::async_context* async_context = new node::async_context();
+
+ *async_context = node::EmitAsyncInit(isolate, v8_resource, v8_resource_name);
+ *result = reinterpret_cast<napi_async_context>(async_context);
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_async_destroy(napi_env env,
+ napi_async_context async_context) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, async_context);
+
+ v8::Isolate* isolate = env->isolate;
+ node::async_context* node_async_context =
+ reinterpret_cast<node::async_context*>(async_context);
+ node::EmitAsyncDestroy(isolate, *node_async_context);
+
+ delete node_async_context;
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_make_callback(napi_env env,
+ napi_async_context async_context,
+ napi_value recv,
+ napi_value func,
+ size_t argc,
+ const napi_value* argv,
+ napi_value* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, recv);
+ if (argc > 0) {
+ CHECK_ARG(env, argv);
+ }
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::Context> context = isolate->GetCurrentContext();
+
+ v8::Local<v8::Object> v8recv;
+ CHECK_TO_OBJECT(env, context, v8recv, recv);
+
+ v8::Local<v8::Function> v8func;
+ CHECK_TO_FUNCTION(env, v8func, func);
+
+ node::async_context* node_async_context =
+ reinterpret_cast<node::async_context*>(async_context);
+ if (node_async_context == nullptr) {
+ static node::async_context empty_context = { 0, 0 };
+ node_async_context = &empty_context;
+ }
+
+ v8::MaybeLocal<v8::Value> callback_result = node::MakeCallback(
+ isolate, v8recv, v8func, argc,
+ reinterpret_cast<v8::Local<v8::Value>*>(const_cast<napi_value*>(argv)),
+ *node_async_context);
+ CHECK_MAYBE_EMPTY(env, callback_result, napi_generic_failure);
+
+ if (result != nullptr) {
+ *result = v8impl::JsValueFromV8LocalValue(
+ callback_result.ToLocalChecked());
+ }
+
+ return GET_RETURN_STATUS(env);
+}
+
+// Methods to support catching exceptions
+napi_status napi_is_exception_pending(napi_env env, bool* result) {
+ // NAPI_PREAMBLE is not used here: this function must execute when there is a
+ // pending exception.
+ CHECK_ENV(env);
+ CHECK_ARG(env, result);
+
+ *result = !env->last_exception.IsEmpty();
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_get_and_clear_last_exception(napi_env env,
+ napi_value* result) {
+ // NAPI_PREAMBLE is not used here: this function must execute when there is a
+ // pending exception.
+ CHECK_ENV(env);
+ CHECK_ARG(env, result);
+
+ if (env->last_exception.IsEmpty()) {
+ return napi_get_undefined(env, result);
+ } else {
+ *result = v8impl::JsValueFromV8LocalValue(
+ v8::Local<v8::Value>::New(env->isolate, env->last_exception));
+ env->last_exception.Reset();
+ }
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_create_buffer(napi_env env,
+ size_t length,
+ void** data,
+ napi_value* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, result);
+
+ auto maybe = node::Buffer::New(env->isolate, length);
+
+ CHECK_MAYBE_EMPTY(env, maybe, napi_generic_failure);
+
+ v8::Local<v8::Object> buffer = maybe.ToLocalChecked();
+
+ *result = v8impl::JsValueFromV8LocalValue(buffer);
+
+ if (data != nullptr) {
+ *data = node::Buffer::Data(buffer);
+ }
+
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_create_external_buffer(napi_env env,
+ size_t length,
+ void* data,
+ napi_finalize finalize_cb,
+ void* finalize_hint,
+ napi_value* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, result);
+
+ v8::Isolate* isolate = env->isolate;
+
+ // The finalizer object will delete itself after invoking the callback.
+ v8impl::Finalizer* finalizer = v8impl::Finalizer::New(
+ env, finalize_cb, nullptr, finalize_hint);
+
+ auto maybe = node::Buffer::New(isolate,
+ static_cast<char*>(data),
+ length,
+ v8impl::Finalizer::FinalizeBufferCallback,
+ finalizer);
+
+ CHECK_MAYBE_EMPTY(env, maybe, napi_generic_failure);
+
+ *result = v8impl::JsValueFromV8LocalValue(maybe.ToLocalChecked());
+ return GET_RETURN_STATUS(env);
+ // Tell coverity that 'finalizer' should not be freed when we return
+ // as it will be deleted when the buffer to which it is associated
+ // is finalized.
+ // coverity[leaked_storage]
+}
+
+napi_status napi_create_buffer_copy(napi_env env,
+ size_t length,
+ const void* data,
+ void** result_data,
+ napi_value* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, result);
+
+ auto maybe = node::Buffer::Copy(env->isolate,
+ static_cast<const char*>(data), length);
+
+ CHECK_MAYBE_EMPTY(env, maybe, napi_generic_failure);
+
+ v8::Local<v8::Object> buffer = maybe.ToLocalChecked();
+ *result = v8impl::JsValueFromV8LocalValue(buffer);
+
+ if (result_data != nullptr) {
+ *result_data = node::Buffer::Data(buffer);
+ }
+
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_is_buffer(napi_env env, napi_value value, bool* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, value);
+ CHECK_ARG(env, result);
+
+ *result = node::Buffer::HasInstance(v8impl::V8LocalValueFromJsValue(value));
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_get_buffer_info(napi_env env,
+ napi_value value,
+ void** data,
+ size_t* length) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, value);
+
+ v8::Local<v8::Value> buffer = v8impl::V8LocalValueFromJsValue(value);
+
+ if (data != nullptr) {
+ *data = node::Buffer::Data(buffer);
+ }
+ if (length != nullptr) {
+ *length = node::Buffer::Length(buffer);
+ }
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_is_arraybuffer(napi_env env, napi_value value, bool* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, value);
+ CHECK_ARG(env, result);
+
+ v8::Local<v8::Value> val = v8impl::V8LocalValueFromJsValue(value);
+ *result = val->IsArrayBuffer();
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_create_arraybuffer(napi_env env,
+ size_t byte_length,
+ void** data,
+ napi_value* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, result);
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::ArrayBuffer> buffer =
+ v8::ArrayBuffer::New(isolate, byte_length);
+
+ // Optionally return a pointer to the buffer's data, to avoid another call to
+ // retrieve it.
+ if (data != nullptr) {
+ *data = buffer->GetContents().Data();
+ }
+
+ *result = v8impl::JsValueFromV8LocalValue(buffer);
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_create_external_arraybuffer(napi_env env,
+ void* external_data,
+ size_t byte_length,
+ napi_finalize finalize_cb,
+ void* finalize_hint,
+ napi_value* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, result);
+
+ v8::Isolate* isolate = env->isolate;
+ v8::Local<v8::ArrayBuffer> buffer =
+ v8::ArrayBuffer::New(isolate, external_data, byte_length);
+
+ if (finalize_cb != nullptr) {
+ // Create a self-deleting weak reference that invokes the finalizer
+ // callback.
+ v8impl::Reference::New(env,
+ buffer,
+ 0,
+ true,
+ finalize_cb,
+ external_data,
+ finalize_hint);
+ }
+
+ *result = v8impl::JsValueFromV8LocalValue(buffer);
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_get_arraybuffer_info(napi_env env,
+ napi_value arraybuffer,
+ void** data,
+ size_t* byte_length) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, arraybuffer);
+
+ v8::Local<v8::Value> value = v8impl::V8LocalValueFromJsValue(arraybuffer);
+ RETURN_STATUS_IF_FALSE(env, value->IsArrayBuffer(), napi_invalid_arg);
+
+ v8::ArrayBuffer::Contents contents =
+ value.As<v8::ArrayBuffer>()->GetContents();
+
+ if (data != nullptr) {
+ *data = contents.Data();
+ }
+
+ if (byte_length != nullptr) {
+ *byte_length = contents.ByteLength();
+ }
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_is_typedarray(napi_env env, napi_value value, bool* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, value);
+ CHECK_ARG(env, result);
+
+ v8::Local<v8::Value> val = v8impl::V8LocalValueFromJsValue(value);
+ *result = val->IsTypedArray();
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_create_typedarray(napi_env env,
+ napi_typedarray_type type,
+ size_t length,
+ napi_value arraybuffer,
+ size_t byte_offset,
+ napi_value* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, arraybuffer);
+ CHECK_ARG(env, result);
+
+ v8::Local<v8::Value> value = v8impl::V8LocalValueFromJsValue(arraybuffer);
+ RETURN_STATUS_IF_FALSE(env, value->IsArrayBuffer(), napi_invalid_arg);
+
+ v8::Local<v8::ArrayBuffer> buffer = value.As<v8::ArrayBuffer>();
+ v8::Local<v8::TypedArray> typedArray;
+
+ switch (type) {
+ case napi_int8_array:
+ CREATE_TYPED_ARRAY(
+ env, Int8Array, 1, buffer, byte_offset, length, typedArray);
+ break;
+ case napi_uint8_array:
+ CREATE_TYPED_ARRAY(
+ env, Uint8Array, 1, buffer, byte_offset, length, typedArray);
+ break;
+ case napi_uint8_clamped_array:
+ CREATE_TYPED_ARRAY(
+ env, Uint8ClampedArray, 1, buffer, byte_offset, length, typedArray);
+ break;
+ case napi_int16_array:
+ CREATE_TYPED_ARRAY(
+ env, Int16Array, 2, buffer, byte_offset, length, typedArray);
+ break;
+ case napi_uint16_array:
+ CREATE_TYPED_ARRAY(
+ env, Uint16Array, 2, buffer, byte_offset, length, typedArray);
+ break;
+ case napi_int32_array:
+ CREATE_TYPED_ARRAY(
+ env, Int32Array, 4, buffer, byte_offset, length, typedArray);
+ break;
+ case napi_uint32_array:
+ CREATE_TYPED_ARRAY(
+ env, Uint32Array, 4, buffer, byte_offset, length, typedArray);
+ break;
+ case napi_float32_array:
+ CREATE_TYPED_ARRAY(
+ env, Float32Array, 4, buffer, byte_offset, length, typedArray);
+ break;
+ case napi_float64_array:
+ CREATE_TYPED_ARRAY(
+ env, Float64Array, 8, buffer, byte_offset, length, typedArray);
+ break;
+ default:
+ return napi_set_last_error(env, napi_invalid_arg);
+ }
+
+ *result = v8impl::JsValueFromV8LocalValue(typedArray);
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_get_typedarray_info(napi_env env,
+ napi_value typedarray,
+ napi_typedarray_type* type,
+ size_t* length,
+ void** data,
+ napi_value* arraybuffer,
+ size_t* byte_offset) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, typedarray);
+
+ v8::Local<v8::Value> value = v8impl::V8LocalValueFromJsValue(typedarray);
+ RETURN_STATUS_IF_FALSE(env, value->IsTypedArray(), napi_invalid_arg);
+
+ v8::Local<v8::TypedArray> array = value.As<v8::TypedArray>();
+
+ if (type != nullptr) {
+ if (value->IsInt8Array()) {
+ *type = napi_int8_array;
+ } else if (value->IsUint8Array()) {
+ *type = napi_uint8_array;
+ } else if (value->IsUint8ClampedArray()) {
+ *type = napi_uint8_clamped_array;
+ } else if (value->IsInt16Array()) {
+ *type = napi_int16_array;
+ } else if (value->IsUint16Array()) {
+ *type = napi_uint16_array;
+ } else if (value->IsInt32Array()) {
+ *type = napi_int32_array;
+ } else if (value->IsUint32Array()) {
+ *type = napi_uint32_array;
+ } else if (value->IsFloat32Array()) {
+ *type = napi_float32_array;
+ } else if (value->IsFloat64Array()) {
+ *type = napi_float64_array;
+ }
+ }
+
+ if (length != nullptr) {
+ *length = array->Length();
+ }
+
+ v8::Local<v8::ArrayBuffer> buffer = array->Buffer();
+ if (data != nullptr) {
+ *data = static_cast<uint8_t*>(buffer->GetContents().Data()) +
+ array->ByteOffset();
+ }
+
+ if (arraybuffer != nullptr) {
+ *arraybuffer = v8impl::JsValueFromV8LocalValue(buffer);
+ }
+
+ if (byte_offset != nullptr) {
+ *byte_offset = array->ByteOffset();
+ }
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_create_dataview(napi_env env,
+ size_t byte_length,
+ napi_value arraybuffer,
+ size_t byte_offset,
+ napi_value* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, arraybuffer);
+ CHECK_ARG(env, result);
+
+ v8::Local<v8::Value> value = v8impl::V8LocalValueFromJsValue(arraybuffer);
+ RETURN_STATUS_IF_FALSE(env, value->IsArrayBuffer(), napi_invalid_arg);
+
+ v8::Local<v8::ArrayBuffer> buffer = value.As<v8::ArrayBuffer>();
+ if (byte_length + byte_offset > buffer->ByteLength()) {
+ napi_throw_range_error(
+ env,
+ "ERR_NAPI_INVALID_DATAVIEW_ARGS",
+ "byte_offset + byte_length should be less than or "
+ "equal to the size in bytes of the array passed in");
+ return napi_set_last_error(env, napi_generic_failure);
+ }
+ v8::Local<v8::DataView> DataView = v8::DataView::New(buffer, byte_offset,
+ byte_length);
+
+ *result = v8impl::JsValueFromV8LocalValue(DataView);
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_is_dataview(napi_env env, napi_value value, bool* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, value);
+ CHECK_ARG(env, result);
+
+ v8::Local<v8::Value> val = v8impl::V8LocalValueFromJsValue(value);
+ *result = val->IsDataView();
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_get_dataview_info(napi_env env,
+ napi_value dataview,
+ size_t* byte_length,
+ void** data,
+ napi_value* arraybuffer,
+ size_t* byte_offset) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, dataview);
+
+ v8::Local<v8::Value> value = v8impl::V8LocalValueFromJsValue(dataview);
+ RETURN_STATUS_IF_FALSE(env, value->IsDataView(), napi_invalid_arg);
+
+ v8::Local<v8::DataView> array = value.As<v8::DataView>();
+
+ if (byte_length != nullptr) {
+ *byte_length = array->ByteLength();
+ }
+
+ v8::Local<v8::ArrayBuffer> buffer = array->Buffer();
+ if (data != nullptr) {
+ *data = static_cast<uint8_t*>(buffer->GetContents().Data()) +
+ array->ByteOffset();
+ }
+
+ if (arraybuffer != nullptr) {
+ *arraybuffer = v8impl::JsValueFromV8LocalValue(buffer);
+ }
+
+ if (byte_offset != nullptr) {
+ *byte_offset = array->ByteOffset();
+ }
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_get_version(napi_env env, uint32_t* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, result);
+ *result = NAPI_VERSION;
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_get_node_version(napi_env env,
+ const napi_node_version** result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, result);
+ static const napi_node_version version = {
+ NODE_MAJOR_VERSION,
+ NODE_MINOR_VERSION,
+ NODE_PATCH_VERSION,
+ NODE_RELEASE
+ };
+ *result = &version;
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_adjust_external_memory(napi_env env,
+ int64_t change_in_bytes,
+ int64_t* adjusted_value) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, adjusted_value);
+
+ *adjusted_value = env->isolate->AdjustAmountOfExternalAllocatedMemory(
+ change_in_bytes);
+
+ return napi_clear_last_error(env);
+}
+
+namespace {
+namespace uvimpl {
+
+static napi_status ConvertUVErrorCode(int code) {
+ switch (code) {
+ case 0:
+ return napi_ok;
+ case UV_EINVAL:
+ return napi_invalid_arg;
+ case UV_ECANCELED:
+ return napi_cancelled;
+ }
+
+ return napi_generic_failure;
+}
+
+// Wrapper around uv_work_t which calls user-provided callbacks.
+class Work : public node::AsyncResource {
+ private:
+ explicit Work(napi_env env,
+ v8::Local<v8::Object> async_resource,
+ v8::Local<v8::String> async_resource_name,
+ napi_async_execute_callback execute,
+ napi_async_complete_callback complete = nullptr,
+ void* data = nullptr)
+ : AsyncResource(env->isolate,
+ async_resource,
+ *v8::String::Utf8Value(async_resource_name)),
+ _env(env),
+ _data(data),
+ _execute(execute),
+ _complete(complete) {
+ memset(&_request, 0, sizeof(_request));
+ _request.data = this;
+ }
+
+ ~Work() { }
+
+ public:
+ static Work* New(napi_env env,
+ v8::Local<v8::Object> async_resource,
+ v8::Local<v8::String> async_resource_name,
+ napi_async_execute_callback execute,
+ napi_async_complete_callback complete,
+ void* data) {
+ return new Work(env, async_resource, async_resource_name,
+ execute, complete, data);
+ }
+
+ static void Delete(Work* work) {
+ delete work;
+ }
+
+ static void ExecuteCallback(uv_work_t* req) {
+ Work* work = static_cast<Work*>(req->data);
+ work->_execute(work->_env, work->_data);
+ }
+
+ static void CompleteCallback(uv_work_t* req, int status) {
+ Work* work = static_cast<Work*>(req->data);
+
+ if (work->_complete != nullptr) {
+ napi_env env = work->_env;
+
+ // 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);
+ CallbackScope callback_scope(work);
+
+ NAPI_CALL_INTO_MODULE(env,
+ work->_complete(env, ConvertUVErrorCode(status), work->_data),
+ [env] (v8::Local<v8::Value> local_err) {
+ // If there was an unhandled exception in the complete callback,
+ // report it as a fatal exception. (There is no JavaScript on the
+ // callstack that can possibly handle it.)
+ v8impl::trigger_fatal_exception(env, local_err);
+ });
+
+ // Note: Don't access `work` after this point because it was
+ // likely deleted by the complete callback.
+ }
+ }
+
+ uv_work_t* Request() {
+ return &_request;
+ }
+
+ private:
+ napi_env _env;
+ void* _data;
+ uv_work_t _request;
+ napi_async_execute_callback _execute;
+ napi_async_complete_callback _complete;
+};
+
+} // end of namespace uvimpl
+} // end of anonymous namespace
+
+#define CALL_UV(env, condition) \
+ do { \
+ int result = (condition); \
+ napi_status status = uvimpl::ConvertUVErrorCode(result); \
+ if (status != napi_ok) { \
+ return napi_set_last_error(env, status, result); \
+ } \
+ } while (0)
+
+napi_status napi_create_async_work(napi_env env,
+ napi_value async_resource,
+ napi_value async_resource_name,
+ napi_async_execute_callback execute,
+ napi_async_complete_callback complete,
+ void* data,
+ napi_async_work* result) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, execute);
+ CHECK_ARG(env, result);
+
+ v8::Local<v8::Context> context = env->isolate->GetCurrentContext();
+
+ v8::Local<v8::Object> resource;
+ if (async_resource != nullptr) {
+ CHECK_TO_OBJECT(env, context, resource, async_resource);
+ } else {
+ resource = v8::Object::New(env->isolate);
+ }
+
+ v8::Local<v8::String> resource_name;
+ CHECK_TO_STRING(env, context, resource_name, async_resource_name);
+
+ uvimpl::Work* work =
+ uvimpl::Work::New(env, resource, resource_name,
+ execute, complete, data);
+
+ *result = reinterpret_cast<napi_async_work>(work);
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_delete_async_work(napi_env env, napi_async_work work) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, work);
+
+ uvimpl::Work::Delete(reinterpret_cast<uvimpl::Work*>(work));
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_queue_async_work(napi_env env, napi_async_work work) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, work);
+
+ // Consider: Encapsulate the uv_loop_t into an opaque pointer parameter.
+ // Currently the environment event loop is the same as the UV default loop.
+ // Someday (if node ever supports multiple isolates), it may be better to get
+ // the loop from node::Environment::GetCurrent(env->isolate)->event_loop();
+ uv_loop_t* event_loop = uv_default_loop();
+
+ uvimpl::Work* w = reinterpret_cast<uvimpl::Work*>(work);
+
+ CALL_UV(env, uv_queue_work(event_loop,
+ w->Request(),
+ uvimpl::Work::ExecuteCallback,
+ uvimpl::Work::CompleteCallback));
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_cancel_async_work(napi_env env, napi_async_work work) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, work);
+
+ uvimpl::Work* w = reinterpret_cast<uvimpl::Work*>(work);
+
+ CALL_UV(env, uv_cancel(reinterpret_cast<uv_req_t*>(w->Request())));
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_create_promise(napi_env env,
+ napi_deferred* deferred,
+ napi_value* promise) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, deferred);
+ CHECK_ARG(env, promise);
+
+ auto maybe = v8::Promise::Resolver::New(env->isolate->GetCurrentContext());
+ CHECK_MAYBE_EMPTY(env, maybe, napi_generic_failure);
+
+ auto v8_resolver = maybe.ToLocalChecked();
+ auto v8_deferred = new v8::Persistent<v8::Value>();
+ v8_deferred->Reset(env->isolate, v8_resolver);
+
+ *deferred = v8impl::JsDeferredFromV8Persistent(v8_deferred);
+ *promise = v8impl::JsValueFromV8LocalValue(v8_resolver->GetPromise());
+ return GET_RETURN_STATUS(env);
+}
+
+napi_status napi_resolve_deferred(napi_env env,
+ napi_deferred deferred,
+ napi_value resolution) {
+ return v8impl::ConcludeDeferred(env, deferred, resolution, true);
+}
+
+napi_status napi_reject_deferred(napi_env env,
+ napi_deferred deferred,
+ napi_value resolution) {
+ return v8impl::ConcludeDeferred(env, deferred, resolution, false);
+}
+
+napi_status napi_is_promise(napi_env env,
+ napi_value promise,
+ bool* is_promise) {
+ CHECK_ENV(env);
+ CHECK_ARG(env, promise);
+ CHECK_ARG(env, is_promise);
+
+ *is_promise = v8impl::V8LocalValueFromJsValue(promise)->IsPromise();
+
+ return napi_clear_last_error(env);
+}
+
+napi_status napi_run_script(napi_env env,
+ napi_value script,
+ napi_value* result) {
+ NAPI_PREAMBLE(env);
+ CHECK_ARG(env, script);
+ CHECK_ARG(env, result);
+
+ v8::Local<v8::Value> v8_script = v8impl::V8LocalValueFromJsValue(script);
+
+ if (!v8_script->IsString()) {
+ return napi_set_last_error(env, napi_string_expected);
+ }
+
+ v8::Local<v8::Context> context = env->isolate->GetCurrentContext();
+
+ auto maybe_script = v8::Script::Compile(context,
+ v8::Local<v8::String>::Cast(v8_script));
+ CHECK_MAYBE_EMPTY(env, maybe_script, napi_generic_failure);
+
+ auto script_result =
+ maybe_script.ToLocalChecked()->Run(context);
+ CHECK_MAYBE_EMPTY(env, script_result, napi_generic_failure);
+
+ *result = v8impl::JsValueFromV8LocalValue(script_result.ToLocalChecked());
+ return GET_RETURN_STATUS(env);
+}
diff --git a/node_modules/node-addon-api/src/node_api.gyp b/node_modules/node-addon-api/src/node_api.gyp
new file mode 100644
index 0000000..3de7da1
--- /dev/null
+++ b/node_modules/node-addon-api/src/node_api.gyp
@@ -0,0 +1,21 @@
+{
+ 'targets': [
+ {
+ 'target_name': 'nothing',
+ 'type': 'static_library',
+ 'sources': [ 'nothing.c' ]
+ },
+ {
+ 'target_name': 'node-api',
+ 'type': 'static_library',
+ 'sources': [
+ 'node_api.cc',
+ 'node_internals.cc',
+ ],
+ 'defines': [
+ 'EXTERNAL_NAPI',
+ ],
+ 'cflags_cc': ['-fvisibility=hidden']
+ }
+ ]
+}
diff --git a/node_modules/node-addon-api/src/node_api.h b/node_modules/node-addon-api/src/node_api.h
new file mode 100644
index 0000000..27028f7
--- /dev/null
+++ b/node_modules/node-addon-api/src/node_api.h
@@ -0,0 +1,588 @@
+/******************************************************************************
+ * Experimental prototype for demonstrating VM agnostic and ABI stable API
+ * for native modules to use instead of using Nan and V8 APIs directly.
+ *
+ * The current status is "Experimental" and should not be used for
+ * production applications. The API is still subject to change
+ * and as an experimental feature is NOT subject to semver.
+ *
+ ******************************************************************************/
+#ifndef SRC_NODE_API_H_
+#define SRC_NODE_API_H_
+
+#include <stddef.h>
+#include <stdbool.h>
+#include "node_api_types.h"
+
+#ifdef _WIN32
+ #ifdef BUILDING_NODE_EXTENSION
+ #ifdef EXTERNAL_NAPI
+ // Building external N-API, or native module against external N-API
+ #define NAPI_EXTERN /* nothing */
+ #else
+ // Building native module against node with built-in N-API
+ #define NAPI_EXTERN __declspec(dllimport)
+ #endif
+ #else
+ // Building node with built-in N-API
+ #define NAPI_EXTERN __declspec(dllexport)
+ #endif
+#else
+ #define NAPI_EXTERN /* nothing */
+#endif
+
+#ifdef _WIN32
+# define NAPI_MODULE_EXPORT __declspec(dllexport)
+#else
+# define NAPI_MODULE_EXPORT __attribute__((visibility("default")))
+#endif
+
+#ifdef __GNUC__
+#define NAPI_NO_RETURN __attribute__((noreturn))
+#else
+#define NAPI_NO_RETURN
+#endif
+
+
+typedef napi_value (*napi_addon_register_func)(napi_env env,
+ napi_value exports);
+
+typedef struct {
+ int nm_version;
+ unsigned int nm_flags;
+ const char* nm_filename;
+ napi_addon_register_func nm_register_func;
+ const char* nm_modname;
+ void* nm_priv;
+ void* reserved[4];
+} napi_module;
+
+#define NAPI_MODULE_VERSION 1
+
+#if defined(_MSC_VER)
+#pragma section(".CRT$XCU", read)
+#define NAPI_C_CTOR(fn) \
+ static void __cdecl fn(void); \
+ __declspec(dllexport, allocate(".CRT$XCU")) void(__cdecl * fn##_)(void) = \
+ fn; \
+ static void __cdecl fn(void)
+#else
+#define NAPI_C_CTOR(fn) \
+ static void fn(void) __attribute__((constructor)); \
+ static void fn(void)
+#endif
+
+#ifdef __cplusplus
+#define EXTERN_C_START extern "C" {
+#define EXTERN_C_END }
+#else
+#define EXTERN_C_START
+#define EXTERN_C_END
+#endif
+
+#define NAPI_MODULE_X(modname, regfunc, priv, flags) \
+ EXTERN_C_START \
+ static napi_module _module = \
+ { \
+ NAPI_MODULE_VERSION, \
+ flags, \
+ __FILE__, \
+ regfunc, \
+ #modname, \
+ priv, \
+ {0}, \
+ }; \
+ NAPI_C_CTOR(_register_ ## modname) { \
+ napi_module_register(&_module); \
+ } \
+ EXTERN_C_END
+
+#define NAPI_MODULE(modname, regfunc) \
+ NAPI_MODULE_X(modname, regfunc, NULL, 0)
+
+#define NAPI_AUTO_LENGTH SIZE_MAX
+
+EXTERN_C_START
+
+NAPI_EXTERN void napi_module_register(napi_module* mod);
+
+NAPI_EXTERN napi_status
+napi_get_last_error_info(napi_env env,
+ const napi_extended_error_info** result);
+
+NAPI_EXTERN napi_status napi_fatal_exception(napi_env env, napi_value err);
+
+NAPI_EXTERN NAPI_NO_RETURN void napi_fatal_error(const char* location,
+ size_t location_len,
+ const char* message,
+ size_t message_len);
+
+// Getters for defined singletons
+NAPI_EXTERN napi_status napi_get_undefined(napi_env env, napi_value* result);
+NAPI_EXTERN napi_status napi_get_null(napi_env env, napi_value* result);
+NAPI_EXTERN napi_status napi_get_global(napi_env env, napi_value* result);
+NAPI_EXTERN napi_status napi_get_boolean(napi_env env,
+ bool value,
+ napi_value* result);
+
+// Methods to create Primitive types/Objects
+NAPI_EXTERN napi_status napi_create_object(napi_env env, napi_value* result);
+NAPI_EXTERN napi_status napi_create_array(napi_env env, napi_value* result);
+NAPI_EXTERN napi_status napi_create_array_with_length(napi_env env,
+ size_t length,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_create_double(napi_env env,
+ double value,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_create_int32(napi_env env,
+ int32_t value,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_create_uint32(napi_env env,
+ uint32_t value,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_create_int64(napi_env env,
+ int64_t value,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_create_string_latin1(napi_env env,
+ const char* str,
+ size_t length,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_create_string_utf8(napi_env env,
+ const char* str,
+ size_t length,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_create_string_utf16(napi_env env,
+ const char16_t* str,
+ size_t length,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_create_symbol(napi_env env,
+ napi_value description,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_create_function(napi_env env,
+ const char* utf8name,
+ size_t length,
+ napi_callback cb,
+ void* data,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_create_error(napi_env env,
+ napi_value code,
+ napi_value msg,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_create_type_error(napi_env env,
+ napi_value code,
+ napi_value msg,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_create_range_error(napi_env env,
+ napi_value code,
+ napi_value msg,
+ napi_value* result);
+
+// Methods to get the the native napi_value from Primitive type
+NAPI_EXTERN napi_status napi_typeof(napi_env env,
+ napi_value value,
+ napi_valuetype* result);
+NAPI_EXTERN napi_status napi_get_value_double(napi_env env,
+ napi_value value,
+ double* result);
+NAPI_EXTERN napi_status napi_get_value_int32(napi_env env,
+ napi_value value,
+ int32_t* result);
+NAPI_EXTERN napi_status napi_get_value_uint32(napi_env env,
+ napi_value value,
+ uint32_t* result);
+NAPI_EXTERN napi_status napi_get_value_int64(napi_env env,
+ napi_value value,
+ int64_t* result);
+NAPI_EXTERN napi_status napi_get_value_bool(napi_env env,
+ napi_value value,
+ bool* result);
+
+// Copies LATIN-1 encoded bytes from a string into a buffer.
+NAPI_EXTERN napi_status napi_get_value_string_latin1(napi_env env,
+ napi_value value,
+ char* buf,
+ size_t bufsize,
+ size_t* result);
+
+// Copies UTF-8 encoded bytes from a string into a buffer.
+NAPI_EXTERN napi_status napi_get_value_string_utf8(napi_env env,
+ napi_value value,
+ char* buf,
+ size_t bufsize,
+ size_t* result);
+
+// Copies UTF-16 encoded bytes from a string into a buffer.
+NAPI_EXTERN napi_status napi_get_value_string_utf16(napi_env env,
+ napi_value value,
+ char16_t* buf,
+ size_t bufsize,
+ size_t* result);
+
+// Methods to coerce values
+// These APIs may execute user scripts
+NAPI_EXTERN napi_status napi_coerce_to_bool(napi_env env,
+ napi_value value,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_coerce_to_number(napi_env env,
+ napi_value value,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_coerce_to_object(napi_env env,
+ napi_value value,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_coerce_to_string(napi_env env,
+ napi_value value,
+ napi_value* result);
+
+// Methods to work with Objects
+NAPI_EXTERN napi_status napi_get_prototype(napi_env env,
+ napi_value object,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_get_property_names(napi_env env,
+ napi_value object,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_set_property(napi_env env,
+ napi_value object,
+ napi_value key,
+ napi_value value);
+NAPI_EXTERN napi_status napi_has_property(napi_env env,
+ napi_value object,
+ napi_value key,
+ bool* result);
+NAPI_EXTERN napi_status napi_get_property(napi_env env,
+ napi_value object,
+ napi_value key,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_delete_property(napi_env env,
+ napi_value object,
+ napi_value key,
+ bool* result);
+NAPI_EXTERN napi_status napi_has_own_property(napi_env env,
+ napi_value object,
+ napi_value key,
+ bool* result);
+NAPI_EXTERN napi_status napi_set_named_property(napi_env env,
+ napi_value object,
+ const char* utf8name,
+ napi_value value);
+NAPI_EXTERN napi_status napi_has_named_property(napi_env env,
+ napi_value object,
+ const char* utf8name,
+ bool* result);
+NAPI_EXTERN napi_status napi_get_named_property(napi_env env,
+ napi_value object,
+ const char* utf8name,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_set_element(napi_env env,
+ napi_value object,
+ uint32_t index,
+ napi_value value);
+NAPI_EXTERN napi_status napi_has_element(napi_env env,
+ napi_value object,
+ uint32_t index,
+ bool* result);
+NAPI_EXTERN napi_status napi_get_element(napi_env env,
+ napi_value object,
+ uint32_t index,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_delete_element(napi_env env,
+ napi_value object,
+ uint32_t index,
+ bool* result);
+NAPI_EXTERN napi_status
+napi_define_properties(napi_env env,
+ napi_value object,
+ size_t property_count,
+ const napi_property_descriptor* properties);
+
+// Methods to work with Arrays
+NAPI_EXTERN napi_status napi_is_array(napi_env env,
+ napi_value value,
+ bool* result);
+NAPI_EXTERN napi_status napi_get_array_length(napi_env env,
+ napi_value value,
+ uint32_t* result);
+
+// Methods to compare values
+NAPI_EXTERN napi_status napi_strict_equals(napi_env env,
+ napi_value lhs,
+ napi_value rhs,
+ bool* result);
+
+// Methods to work with Functions
+NAPI_EXTERN napi_status napi_call_function(napi_env env,
+ napi_value recv,
+ napi_value func,
+ size_t argc,
+ const napi_value* argv,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_new_instance(napi_env env,
+ napi_value constructor,
+ size_t argc,
+ const napi_value* argv,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_instanceof(napi_env env,
+ napi_value object,
+ napi_value constructor,
+ bool* result);
+
+// Methods to work with napi_callbacks
+
+// Gets all callback info in a single call. (Ugly, but faster.)
+NAPI_EXTERN napi_status napi_get_cb_info(
+ napi_env env, // [in] NAPI environment handle
+ napi_callback_info cbinfo, // [in] Opaque callback-info handle
+ size_t* argc, // [in-out] Specifies the size of the provided argv array
+ // and receives the actual count of args.
+ napi_value* argv, // [out] Array of values
+ napi_value* this_arg, // [out] Receives the JS 'this' arg for the call
+ void** data); // [out] Receives the data pointer for the callback.
+
+NAPI_EXTERN napi_status napi_get_new_target(napi_env env,
+ napi_callback_info cbinfo,
+ napi_value* result);
+NAPI_EXTERN napi_status
+napi_define_class(napi_env env,
+ const char* utf8name,
+ size_t length,
+ napi_callback constructor,
+ void* data,
+ size_t property_count,
+ const napi_property_descriptor* properties,
+ napi_value* result);
+
+// Methods to work with external data objects
+NAPI_EXTERN napi_status napi_wrap(napi_env env,
+ napi_value js_object,
+ void* native_object,
+ napi_finalize finalize_cb,
+ void* finalize_hint,
+ napi_ref* result);
+NAPI_EXTERN napi_status napi_unwrap(napi_env env,
+ napi_value js_object,
+ void** result);
+NAPI_EXTERN napi_status napi_remove_wrap(napi_env env,
+ napi_value js_object,
+ void** result);
+NAPI_EXTERN napi_status napi_create_external(napi_env env,
+ void* data,
+ napi_finalize finalize_cb,
+ void* finalize_hint,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_get_value_external(napi_env env,
+ napi_value value,
+ void** result);
+
+// Methods to control object lifespan
+
+// Set initial_refcount to 0 for a weak reference, >0 for a strong reference.
+NAPI_EXTERN napi_status napi_create_reference(napi_env env,
+ napi_value value,
+ uint32_t initial_refcount,
+ napi_ref* result);
+
+// Deletes a reference. The referenced value is released, and may
+// be GC'd unless there are other references to it.
+NAPI_EXTERN napi_status napi_delete_reference(napi_env env, napi_ref ref);
+
+// Increments the reference count, optionally returning the resulting count.
+// After this call the reference will be a strong reference because its
+// refcount is >0, and the referenced object is effectively "pinned".
+// Calling this when the refcount is 0 and the object is unavailable
+// results in an error.
+NAPI_EXTERN napi_status napi_reference_ref(napi_env env,
+ napi_ref ref,
+ uint32_t* result);
+
+// Decrements the reference count, optionally returning the resulting count.
+// If the result is 0 the reference is now weak and the object may be GC'd
+// at any time if there are no other references. Calling this when the
+// refcount is already 0 results in an error.
+NAPI_EXTERN napi_status napi_reference_unref(napi_env env,
+ napi_ref ref,
+ uint32_t* result);
+
+// Attempts to get a referenced value. If the reference is weak,
+// the value might no longer be available, in that case the call
+// is still successful but the result is NULL.
+NAPI_EXTERN napi_status napi_get_reference_value(napi_env env,
+ napi_ref ref,
+ napi_value* result);
+
+NAPI_EXTERN napi_status napi_open_handle_scope(napi_env env,
+ napi_handle_scope* result);
+NAPI_EXTERN napi_status napi_close_handle_scope(napi_env env,
+ napi_handle_scope scope);
+NAPI_EXTERN napi_status
+napi_open_escapable_handle_scope(napi_env env,
+ napi_escapable_handle_scope* result);
+NAPI_EXTERN napi_status
+napi_close_escapable_handle_scope(napi_env env,
+ napi_escapable_handle_scope scope);
+
+NAPI_EXTERN napi_status napi_escape_handle(napi_env env,
+ napi_escapable_handle_scope scope,
+ napi_value escapee,
+ napi_value* result);
+
+// Methods to support error handling
+NAPI_EXTERN napi_status napi_throw(napi_env env, napi_value error);
+NAPI_EXTERN napi_status napi_throw_error(napi_env env,
+ const char* code,
+ const char* msg);
+NAPI_EXTERN napi_status napi_throw_type_error(napi_env env,
+ const char* code,
+ const char* msg);
+NAPI_EXTERN napi_status napi_throw_range_error(napi_env env,
+ const char* code,
+ const char* msg);
+NAPI_EXTERN napi_status napi_is_error(napi_env env,
+ napi_value value,
+ bool* result);
+
+// Methods to support catching exceptions
+NAPI_EXTERN napi_status napi_is_exception_pending(napi_env env, bool* result);
+NAPI_EXTERN napi_status napi_get_and_clear_last_exception(napi_env env,
+ napi_value* result);
+
+// Methods to provide node::Buffer functionality with napi types
+NAPI_EXTERN napi_status napi_create_buffer(napi_env env,
+ size_t length,
+ void** data,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_create_external_buffer(napi_env env,
+ size_t length,
+ void* data,
+ napi_finalize finalize_cb,
+ void* finalize_hint,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_create_buffer_copy(napi_env env,
+ size_t length,
+ const void* data,
+ void** result_data,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_is_buffer(napi_env env,
+ napi_value value,
+ bool* result);
+NAPI_EXTERN napi_status napi_get_buffer_info(napi_env env,
+ napi_value value,
+ void** data,
+ size_t* length);
+
+// Methods to work with array buffers and typed arrays
+NAPI_EXTERN napi_status napi_is_arraybuffer(napi_env env,
+ napi_value value,
+ bool* result);
+NAPI_EXTERN napi_status napi_create_arraybuffer(napi_env env,
+ size_t byte_length,
+ void** data,
+ napi_value* result);
+NAPI_EXTERN napi_status
+napi_create_external_arraybuffer(napi_env env,
+ void* external_data,
+ size_t byte_length,
+ napi_finalize finalize_cb,
+ void* finalize_hint,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_get_arraybuffer_info(napi_env env,
+ napi_value arraybuffer,
+ void** data,
+ size_t* byte_length);
+NAPI_EXTERN napi_status napi_is_typedarray(napi_env env,
+ napi_value value,
+ bool* result);
+NAPI_EXTERN napi_status napi_create_typedarray(napi_env env,
+ napi_typedarray_type type,
+ size_t length,
+ napi_value arraybuffer,
+ size_t byte_offset,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_get_typedarray_info(napi_env env,
+ napi_value typedarray,
+ napi_typedarray_type* type,
+ size_t* length,
+ void** data,
+ napi_value* arraybuffer,
+ size_t* byte_offset);
+
+NAPI_EXTERN napi_status napi_create_dataview(napi_env env,
+ size_t length,
+ napi_value arraybuffer,
+ size_t byte_offset,
+ napi_value* result);
+NAPI_EXTERN napi_status napi_is_dataview(napi_env env,
+ napi_value value,
+ bool* result);
+NAPI_EXTERN napi_status napi_get_dataview_info(napi_env env,
+ napi_value dataview,
+ size_t* bytelength,
+ void** data,
+ napi_value* arraybuffer,
+ size_t* byte_offset);
+
+// Methods to manage simple async operations
+NAPI_EXTERN
+napi_status napi_create_async_work(napi_env env,
+ napi_value async_resource,
+ napi_value async_resource_name,
+ napi_async_execute_callback execute,
+ napi_async_complete_callback complete,
+ void* data,
+ napi_async_work* result);
+NAPI_EXTERN napi_status napi_delete_async_work(napi_env env,
+ napi_async_work work);
+NAPI_EXTERN napi_status napi_queue_async_work(napi_env env,
+ napi_async_work work);
+NAPI_EXTERN napi_status napi_cancel_async_work(napi_env env,
+ napi_async_work work);
+
+// Methods for custom handling of async operations
+NAPI_EXTERN napi_status napi_async_init(napi_env env,
+ napi_value async_resource,
+ napi_value async_resource_name,
+ napi_async_context* result);
+
+NAPI_EXTERN napi_status napi_async_destroy(napi_env env,
+ napi_async_context async_context);
+
+NAPI_EXTERN napi_status napi_make_callback(napi_env env,
+ napi_async_context async_context,
+ napi_value recv,
+ napi_value func,
+ size_t argc,
+ const napi_value* argv,
+ napi_value* result);
+
+// version management
+NAPI_EXTERN napi_status napi_get_version(napi_env env, uint32_t* result);
+
+NAPI_EXTERN
+napi_status napi_get_node_version(napi_env env,
+ const napi_node_version** version);
+
+// Promises
+NAPI_EXTERN napi_status napi_create_promise(napi_env env,
+ napi_deferred* deferred,
+ napi_value* promise);
+NAPI_EXTERN napi_status napi_resolve_deferred(napi_env env,
+ napi_deferred deferred,
+ napi_value resolution);
+NAPI_EXTERN napi_status napi_reject_deferred(napi_env env,
+ napi_deferred deferred,
+ napi_value rejection);
+NAPI_EXTERN napi_status napi_is_promise(napi_env env,
+ napi_value promise,
+ bool* is_promise);
+
+// Memory management
+NAPI_EXTERN napi_status napi_adjust_external_memory(napi_env env,
+ int64_t change_in_bytes,
+ int64_t* adjusted_value);
+
+// Runnig a script
+NAPI_EXTERN napi_status napi_run_script(napi_env env,
+ napi_value script,
+ napi_value* result);
+
+EXTERN_C_END
+
+#endif // SRC_NODE_API_H_
diff --git a/node_modules/node-addon-api/src/node_api_types.h b/node_modules/node-addon-api/src/node_api_types.h
new file mode 100644
index 0000000..230c1f4
--- /dev/null
+++ b/node_modules/node-addon-api/src/node_api_types.h
@@ -0,0 +1,115 @@
+#ifndef SRC_NODE_API_TYPES_H_
+#define SRC_NODE_API_TYPES_H_
+
+#include <stddef.h>
+#include <stdint.h>
+
+#if !defined __cplusplus || (defined(_MSC_VER) && _MSC_VER < 1900)
+ typedef uint16_t char16_t;
+#endif
+
+// JSVM API types are all opaque pointers for ABI stability
+// typedef undefined structs instead of void* for compile time type safety
+typedef struct napi_env__ *napi_env;
+typedef struct napi_value__ *napi_value;
+typedef struct napi_ref__ *napi_ref;
+typedef struct napi_handle_scope__ *napi_handle_scope;
+typedef struct napi_escapable_handle_scope__ *napi_escapable_handle_scope;
+typedef struct napi_callback_info__ *napi_callback_info;
+typedef struct napi_async_context__ *napi_async_context;
+typedef struct napi_async_work__ *napi_async_work;
+typedef struct napi_deferred__ *napi_deferred;
+
+typedef enum {
+ napi_default = 0,
+ napi_writable = 1 << 0,
+ napi_enumerable = 1 << 1,
+ napi_configurable = 1 << 2,
+
+ // Used with napi_define_class to distinguish static properties
+ // from instance properties. Ignored by napi_define_properties.
+ napi_static = 1 << 10,
+} napi_property_attributes;
+
+typedef enum {
+ // ES6 types (corresponds to typeof)
+ napi_undefined,
+ napi_null,
+ napi_boolean,
+ napi_number,
+ napi_string,
+ napi_symbol,
+ napi_object,
+ napi_function,
+ napi_external,
+} napi_valuetype;
+
+typedef enum {
+ napi_int8_array,
+ napi_uint8_array,
+ napi_uint8_clamped_array,
+ napi_int16_array,
+ napi_uint16_array,
+ napi_int32_array,
+ napi_uint32_array,
+ napi_float32_array,
+ napi_float64_array,
+} napi_typedarray_type;
+
+typedef enum {
+ napi_ok,
+ napi_invalid_arg,
+ napi_object_expected,
+ napi_string_expected,
+ napi_name_expected,
+ napi_function_expected,
+ napi_number_expected,
+ napi_boolean_expected,
+ napi_array_expected,
+ napi_generic_failure,
+ napi_pending_exception,
+ napi_cancelled,
+ napi_escape_called_twice,
+ napi_handle_scope_mismatch
+} napi_status;
+
+typedef napi_value (*napi_callback)(napi_env env,
+ napi_callback_info info);
+typedef void (*napi_finalize)(napi_env env,
+ void* finalize_data,
+ void* finalize_hint);
+typedef void (*napi_async_execute_callback)(napi_env env,
+ void* data);
+typedef void (*napi_async_complete_callback)(napi_env env,
+ napi_status status,
+ void* data);
+
+typedef struct {
+ // One of utf8name or name should be NULL.
+ const char* utf8name;
+ napi_value name;
+
+ napi_callback method;
+ napi_callback getter;
+ napi_callback setter;
+ napi_value value;
+
+ napi_property_attributes attributes;
+ void* data;
+} napi_property_descriptor;
+
+typedef struct {
+ const char* error_message;
+ void* engine_reserved;
+ uint32_t engine_error_code;
+ napi_status error_code;
+} napi_extended_error_info;
+
+typedef struct {
+ uint32_t major;
+ uint32_t minor;
+ uint32_t patch;
+ const char* release;
+} napi_node_version;
+
+#endif // SRC_NODE_API_TYPES_H_
diff --git a/node_modules/node-addon-api/src/node_internals.cc b/node_modules/node-addon-api/src/node_internals.cc
new file mode 100644
index 0000000..c4a7dd8
--- /dev/null
+++ b/node_modules/node-addon-api/src/node_internals.cc
@@ -0,0 +1,142 @@
+#include "node_internals.h"
+#include <stdlib.h>
+#include <cstdarg>
+#include <vector>
+#include "uv.h"
+
+#if defined(_MSC_VER)
+#define getpid GetCurrentProcessId
+#else
+#include <unistd.h> // getpid
+#endif
+
+#if NODE_MAJOR_VERSION < 8 || NODE_MAJOR_VERSION == 8 && NODE_MINOR_VERSION < 6
+CallbackScope::CallbackScope(void *work) {
+}
+#endif // NODE_MAJOR_VERSION < 8
+
+namespace node {
+
+#if NODE_MAJOR_VERSION < 8
+
+async_context EmitAsyncInit(v8::Isolate* isolate,
+ v8::Local<v8::Object> resource,
+ v8::Local<v8::String> name,
+ async_id trigger_async_id) {
+ return async_context();
+}
+
+void EmitAsyncDestroy(v8::Isolate* isolate,
+ async_context asyncContext) {
+}
+
+AsyncResource::AsyncResource(v8::Isolate* isolate,
+ v8::Local<v8::Object> object,
+ const char *name) {
+}
+
+#endif // NODE_MAJOR_VERSION < 8
+
+#if NODE_MAJOR_VERSION < 8 || NODE_MAJOR_VERSION == 8 && NODE_MINOR_VERSION < 6
+
+v8::MaybeLocal<v8::Value> MakeCallback(v8::Isolate* isolate,
+ v8::Local<v8::Object> recv,
+ v8::Local<v8::Function> callback,
+ int argc,
+ v8::Local<v8::Value>* argv,
+ async_context asyncContext) {
+ return node::MakeCallback(isolate, recv, callback, argc, argv);
+}
+
+#endif // NODE_MAJOR_VERSION < 8 || NODE_MAJOR_VERSION == 8 && NODE_MINOR_VERSION < 6
+
+static void PrintErrorString(const char* format, ...) {
+ va_list ap;
+ va_start(ap, format);
+#ifdef _WIN32
+ HANDLE stderr_handle = GetStdHandle(STD_ERROR_HANDLE);
+
+ // Check if stderr is something other than a tty/console
+ if (stderr_handle == INVALID_HANDLE_VALUE ||
+ stderr_handle == nullptr ||
+ uv_guess_handle(_fileno(stderr)) != UV_TTY) {
+ vfprintf(stderr, format, ap);
+ va_end(ap);
+ return;
+ }
+
+ // Fill in any placeholders
+ int n = _vscprintf(format, ap);
+ std::vector<char> out(n + 1);
+ vsprintf(out.data(), format, ap);
+
+ // Get required wide buffer size
+ n = MultiByteToWideChar(CP_UTF8, 0, out.data(), -1, nullptr, 0);
+
+ std::vector<wchar_t> wbuf(n);
+ MultiByteToWideChar(CP_UTF8, 0, out.data(), -1, wbuf.data(), n);
+
+ // Don't include the null character in the output
+ CHECK_GT(n, 0);
+ WriteConsoleW(stderr_handle, wbuf.data(), n - 1, nullptr, nullptr);
+#else
+ vfprintf(stderr, format, ap);
+#endif
+ va_end(ap);
+}
+
+void DumpBacktrace(FILE* fp) {
+}
+
+NO_RETURN void Abort() {
+ DumpBacktrace(stderr);
+ fflush(stderr);
+ ABORT_NO_BACKTRACE();
+}
+
+NO_RETURN void Assert(const char* const (*args)[4]) {
+ auto filename = (*args)[0];
+ auto linenum = (*args)[1];
+ auto message = (*args)[2];
+ auto function = (*args)[3];
+
+ char exepath[256];
+ size_t exepath_size = sizeof(exepath);
+ if (uv_exepath(exepath, &exepath_size))
+ snprintf(exepath, sizeof(exepath), "node");
+
+ char pid[12] = {0};
+ snprintf(pid, sizeof(pid), "[%u]", getpid());
+
+ fprintf(stderr, "%s%s: %s:%s:%s%s Assertion `%s' failed.\n",
+ exepath, pid, filename, linenum,
+ function, *function ? ":" : "", message);
+ fflush(stderr);
+
+ Abort();
+}
+
+static void OnFatalError(const char* location, const char* message) {
+ if (location) {
+ PrintErrorString("FATAL ERROR: %s %s\n", location, message);
+ } else {
+ PrintErrorString("FATAL ERROR: %s\n", message);
+ }
+ fflush(stderr);
+ ABORT();
+}
+
+NO_RETURN void FatalError(const char* location, const char* message) {
+ OnFatalError(location, message);
+ // to suppress compiler warning
+ ABORT();
+}
+
+} // namespace node
+
+#if NODE_MAJOR_VERSION < 6
+v8::Local<v8::Name> v8::Private::ForApi(v8::Isolate* isolate,
+ v8::Local<v8::String> key) {
+ return v8::Symbol::ForApi(isolate, key);
+}
+#endif // NODE_MAJOR_VERSION < 6
diff --git a/node_modules/node-addon-api/src/node_internals.h b/node_modules/node-addon-api/src/node_internals.h
new file mode 100644
index 0000000..bacccff
--- /dev/null
+++ b/node_modules/node-addon-api/src/node_internals.h
@@ -0,0 +1,157 @@
+#ifndef SRC_NODE_INTERNALS_H_
+#define SRC_NODE_INTERNALS_H_
+
+//
+// This is a stripped down shim to allow node_api.cc to build outside of the node source tree.
+//
+
+#include "node_version.h"
+#include "util-inl.h"
+#include <stdio.h>
+#include <stdint.h>
+#include "uv.h"
+#include "node.h"
+#include <string>
+
+// Windows 8+ does not like abort() in Release mode
+#ifdef _WIN32
+#define ABORT_NO_BACKTRACE() raise(SIGABRT)
+#else
+#define ABORT_NO_BACKTRACE() abort()
+#endif
+
+#define ABORT() node::Abort()
+
+#ifdef __GNUC__
+#define LIKELY(expr) __builtin_expect(!!(expr), 1)
+#define UNLIKELY(expr) __builtin_expect(!!(expr), 0)
+#define PRETTY_FUNCTION_NAME __PRETTY_FUNCTION__
+#else
+#define LIKELY(expr) expr
+#define UNLIKELY(expr) expr
+#define PRETTY_FUNCTION_NAME ""
+#endif
+
+#define STRINGIFY_(x) #x
+#define STRINGIFY(x) STRINGIFY_(x)
+
+#define CHECK(expr) \
+ do { \
+ if (UNLIKELY(!(expr))) { \
+ static const char* const args[] = { __FILE__, STRINGIFY(__LINE__), \
+ #expr, PRETTY_FUNCTION_NAME }; \
+ node::Assert(&args); \
+ } \
+ } while (0)
+
+#define CHECK_EQ(a, b) CHECK((a) == (b))
+#define CHECK_GE(a, b) CHECK((a) >= (b))
+#define CHECK_GT(a, b) CHECK((a) > (b))
+#define CHECK_LE(a, b) CHECK((a) <= (b))
+#define CHECK_LT(a, b) CHECK((a) < (b))
+#define CHECK_NE(a, b) CHECK((a) != (b))
+
+#ifdef __GNUC__
+#define NO_RETURN __attribute__((noreturn))
+#else
+#define NO_RETURN
+#endif
+
+#ifndef NODE_RELEASE
+#define NODE_RELEASE "node"
+#endif
+
+#if NODE_MAJOR_VERSION < 8 || NODE_MAJOR_VERSION == 8 && NODE_MINOR_VERSION < 6
+class CallbackScope {
+ public:
+ CallbackScope(void *work);
+};
+#endif // NODE_MAJOR_VERSION < 8
+
+namespace node {
+
+// Copied from Node.js' src/node_persistent.h
+template <typename T>
+struct ResetInDestructorPersistentTraits {
+ static const bool kResetInDestructor = true;
+ template <typename S, typename M>
+ // Disallow copy semantics by leaving this unimplemented.
+ inline static void Copy(
+ const v8::Persistent<S, M>&,
+ v8::Persistent<T, ResetInDestructorPersistentTraits<T>>*);
+};
+
+// v8::Persistent does not reset the object slot in its destructor. That is
+// acknowledged as a flaw in the V8 API and expected to change in the future
+// but for now node::Persistent is the easier and safer alternative.
+template <typename T>
+using Persistent = v8::Persistent<T, ResetInDestructorPersistentTraits<T>>;
+
+#if NODE_MAJOR_VERSION < 8 || NODE_MAJOR_VERSION == 8 && NODE_MINOR_VERSION < 2
+typedef int async_id;
+
+typedef struct async_context {
+ node::async_id async_id;
+ node::async_id trigger_async_id;
+} async_context;
+#endif // NODE_MAJOR_VERSION < 8.2
+
+#if NODE_MAJOR_VERSION < 8 || NODE_MAJOR_VERSION == 8 && NODE_MINOR_VERSION < 6
+NODE_EXTERN async_context EmitAsyncInit(v8::Isolate* isolate,
+ v8::Local<v8::Object> resource,
+ v8::Local<v8::String> name,
+ async_id trigger_async_id = -1);
+
+NODE_EXTERN void EmitAsyncDestroy(v8::Isolate* isolate,
+ async_context asyncContext);
+
+v8::MaybeLocal<v8::Value> MakeCallback(v8::Isolate* isolate,
+ v8::Local<v8::Object> recv,
+ v8::Local<v8::Function> callback,
+ int argc,
+ v8::Local<v8::Value>* argv,
+ async_context asyncContext);
+
+#if NODE_MAJOR_VERSION < 8
+class AsyncResource {
+ public:
+ AsyncResource(v8::Isolate* isolate,
+ v8::Local<v8::Object> object,
+ const char *name);
+};
+#endif // node version below 8
+
+#endif // node version below 8.6
+
+// The slightly odd function signature for Assert() is to ease
+// instruction cache pressure in calls from ASSERT and CHECK.
+NO_RETURN void Abort();
+NO_RETURN void Assert(const char* const (*args)[4]);
+void DumpBacktrace(FILE* fp);
+
+template <typename T, size_t N>
+constexpr size_t arraysize(const T(&)[N]) { return N; }
+
+NO_RETURN void FatalError(const char* location, const char* message);
+
+} // namespace node
+
+#if NODE_MAJOR_VERSION < 8
+#define NewTarget This
+#endif // NODE_MAJOR_VERSION < 8
+
+#if NODE_MAJOR_VERSION < 6
+namespace v8 {
+ namespace Private {
+ v8::Local<v8::Name> ForApi(v8::Isolate* isolate, v8::Local<v8::String> key);
+ }
+}
+#define GetPrivate(context, key) Get((context), (key))
+#define SetPrivate(context, key, value) \
+ DefineOwnProperty((context), (key), (value), \
+ static_cast<v8::PropertyAttribute>(v8::DontEnum | \
+ v8::DontDelete | \
+ v8::ReadOnly))
+#endif // NODE_MAJOR_VERSION < 6
+
+#endif // SRC_NODE_INTERNALS_H_
diff --git a/node_modules/node-addon-api/src/nothing.c b/node_modules/node-addon-api/src/nothing.c
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/node_modules/node-addon-api/src/nothing.c
diff --git a/node_modules/node-addon-api/src/util-inl.h b/node_modules/node-addon-api/src/util-inl.h
new file mode 100644
index 0000000..30aad16
--- /dev/null
+++ b/node_modules/node-addon-api/src/util-inl.h
@@ -0,0 +1,38 @@
+#ifndef SRC_UTIL_INL_H_
+#define SRC_UTIL_INL_H_
+
+#include "util.h"
+#include "v8.h"
+
+namespace node {
+
+inline v8::Local<v8::String> OneByteString(v8::Isolate* isolate,
+ const char* data,
+ int length) {
+ return v8::String::NewFromOneByte(isolate,
+ reinterpret_cast<const uint8_t*>(data),
+ v8::NewStringType::kNormal,
+ length).ToLocalChecked();
+}
+
+inline v8::Local<v8::String> OneByteString(v8::Isolate* isolate,
+ const signed char* data,
+ int length) {
+ return v8::String::NewFromOneByte(isolate,
+ reinterpret_cast<const uint8_t*>(data),
+ v8::NewStringType::kNormal,
+ length).ToLocalChecked();
+}
+
+inline v8::Local<v8::String> OneByteString(v8::Isolate* isolate,
+ const unsigned char* data,
+ int length) {
+ return v8::String::NewFromOneByte(isolate,
+ reinterpret_cast<const uint8_t*>(data),
+ v8::NewStringType::kNormal,
+ length).ToLocalChecked();
+}
+
+} // namespace node
+
+#endif // SRC_UTIL_INL_H_
diff --git a/node_modules/node-addon-api/src/util.h b/node_modules/node-addon-api/src/util.h
new file mode 100644
index 0000000..6765bc1
--- /dev/null
+++ b/node_modules/node-addon-api/src/util.h
@@ -0,0 +1,7 @@
+#ifndef SRC_UTIL_H_
+#define SRC_UTIL_H_
+
+#define FIXED_ONE_BYTE_STRING(isolate, string) \
+ (node::OneByteString((isolate), (string), sizeof(string) - 1))
+
+#endif // SRC_UTIL_H_
generated by cgit v1.2.3 (git 2.25.1) at 2026-03-11 11:47:03 +0000