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neon.cc
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#include <new>
#include <nan.h>
#include <stdint.h>
#include <stdio.h>
#include "node.h"
#include "node_version.h"
#include "neon.h"
#include "neon_string.h"
#include "neon_class_metadata.h"
#include "neon_task.h"
#include "neon_event.h"
extern "C" void Neon_Call_SetReturn(v8::FunctionCallbackInfo<v8::Value> *info, v8::Local<v8::Value> value) {
info->GetReturnValue().Set(value);
}
extern "C" void *Neon_Call_GetIsolate(v8::FunctionCallbackInfo<v8::Value> *info) {
return (void *)info->GetIsolate();
}
extern "C" void *Neon_Call_CurrentIsolate() {
return (void *)v8::Isolate::GetCurrent();
}
extern "C" bool Neon_Call_IsConstruct(v8::FunctionCallbackInfo<v8::Value> *info) {
return info->IsConstructCall();
}
extern "C" void Neon_Call_This(v8::FunctionCallbackInfo<v8::Value> *info, v8::Local<v8::Object> *out) {
*out = info->This();
}
extern "C" void Neon_Call_Data(v8::FunctionCallbackInfo<v8::Value> *info, v8::Local<v8::Value> *out) {
/*
printf("Call_Data: v8 info = %p\n", *(void **)info);
dump((void *)info, 3);
printf("Call_Data: v8 info implicit:\n");
dump_implicit((void *)info);
*/
*out = info->Data();
}
extern "C" int32_t Neon_Call_Length(v8::FunctionCallbackInfo<v8::Value> *info) {
return info->Length();
}
extern "C" void Neon_Call_Get(v8::FunctionCallbackInfo<v8::Value> *info, int32_t i, v8::Local<v8::Value> *out) {
*out = (*info)[i];
}
extern "C" void Neon_Object_New(v8::Local<v8::Object> *out, v8::Isolate *isolate) {
*out = Nan::New<v8::Object>();
}
extern "C" bool Neon_Object_GetOwnPropertyNames(v8::Local<v8::Array> *out, v8::Isolate *isolate, v8::Local<v8::Object> obj) {
Nan::MaybeLocal<v8::Array> maybe = Nan::GetOwnPropertyNames(obj);
return maybe.ToLocal(out);
}
extern "C" void *Neon_Object_GetIsolate(v8::Local<v8::Object> obj) {
return obj->GetIsolate();
}
extern "C" void Neon_Primitive_Undefined(v8::Local<v8::Primitive> *out, v8::Isolate *isolate) {
*out = Nan::Undefined();
}
extern "C" void Neon_Primitive_Null(v8::Local<v8::Primitive> *out, v8::Isolate *isolate) {
*out = Nan::Null();
}
extern "C" void Neon_Primitive_Boolean(v8::Local<v8::Boolean> *out, v8::Isolate *isolate, bool b) {
*out = b ? Nan::True() : Nan::False();
}
extern "C" bool Neon_Primitive_BooleanValue(v8::Local<v8::Boolean> p) {
return p->Value();
}
extern "C" void Neon_Primitive_Number(v8::Local<v8::Number> *out, v8::Isolate *isolate, double value) {
*out = v8::Number::New(isolate, value);
}
extern "C" double Neon_Primitive_NumberValue(v8::Local<v8::Number> n) {
return n->Value();
}
extern "C" bool Neon_Primitive_IsUint32(v8::Local<v8::Primitive> p) {
return p->IsUint32();
}
extern "C" bool Neon_Primitive_IsInt32(v8::Local<v8::Primitive> p) {
return p->IsInt32();
}
extern "C" bool Neon_Object_Get_Index(v8::Local<v8::Value> *out, v8::Local<v8::Object> obj, uint32_t index) {
Nan::MaybeLocal<v8::Value> maybe = Nan::Get(obj, index);
return maybe.ToLocal(out);
}
extern "C" bool Neon_Object_Set_Index(bool *out, v8::Local<v8::Object> object, uint32_t index, v8::Local<v8::Value> val) {
Nan::Maybe<bool> maybe = Nan::Set(object, index, val);
return maybe.IsJust() && (*out = maybe.FromJust(), true);
}
bool Neon_ASCII_Key(v8::Local<v8::String> *key, const uint8_t *data, int32_t len) {
Nan::MaybeLocal<v8::String> maybe_key = v8::String::NewFromUtf8(v8::Isolate::GetCurrent(), (const char*)data, v8::NewStringType::kNormal, len);
return maybe_key.ToLocal(key);
}
extern "C" bool Neon_Object_Get_String(v8::Local<v8::Value> *out, v8::Local<v8::Object> obj, const uint8_t *data, int32_t len) {
Nan::EscapableHandleScope scope;
v8::Local<v8::String> key;
if (!Neon_ASCII_Key(&key, data, len)) {
return false;
}
Nan::MaybeLocal<v8::Value> maybe = Nan::Get(obj, key);
v8::Local<v8::Value> result;
if (!maybe.ToLocal(&result)) {
return false;
}
*out = scope.Escape(result);
return true;
}
extern "C" bool Neon_Object_Set_String(bool *out, v8::Local<v8::Object> obj, const uint8_t *data, int32_t len, v8::Local<v8::Value> val) {
Nan::HandleScope scope;
v8::Local<v8::String> key;
if (!Neon_ASCII_Key(&key, data, len)) {
return false;
}
Nan::Maybe<bool> maybe = Nan::Set(obj, key, val);
return maybe.IsJust() && (*out = maybe.FromJust(), true);
}
extern "C" bool Neon_Object_Get(v8::Local<v8::Value> *out, v8::Local<v8::Object> obj, v8::Local<v8::Value> key) {
Nan::MaybeLocal<v8::Value> maybe = Nan::Get(obj, key);
return maybe.ToLocal(out);
}
extern "C" bool Neon_Object_Set(bool *out, v8::Local<v8::Object> obj, v8::Local<v8::Value> key, v8::Local<v8::Value> val) {
// Only returns `Just(true)` or `Empty()`.
Nan::Maybe<bool> maybe = Nan::Set(obj, key, val);
if (maybe.IsJust()) {
*out = maybe.FromJust();
return true;
}
return false;
}
extern "C" void Neon_Array_New(v8::Local<v8::Array> *out, v8::Isolate *isolate, uint32_t length) {
*out = v8::Array::New(isolate, length);
}
extern "C" uint32_t Neon_Array_Length(v8::Isolate *isolate, v8::Local<v8::Array> array) {
return array->Length();
}
extern "C" bool Neon_String_New(v8::Local<v8::String> *out, v8::Isolate *isolate, const uint8_t *data, int32_t len) {
Nan::MaybeLocal<v8::String> maybe = v8::String::NewFromUtf8(isolate, (const char*)data, v8::NewStringType::kNormal, len);
return maybe.ToLocal(out);
}
extern "C" int32_t Neon_String_Utf8Length(v8::Local<v8::String> str) {
#if NODE_MODULE_VERSION >= NODE_11_0_MODULE_VERSION
return str->Utf8Length(v8::Isolate::GetCurrent());
#else
return str->Utf8Length();
#endif
}
extern "C" size_t Neon_String_Data(char *out, size_t len, v8::Local<v8::Value> str) {
return Nan::DecodeWrite(out, len, str, Nan::UTF8);
}
extern "C" bool Neon_Convert_ToString(v8::Local<v8::String> *out, v8::Local<v8::Value> value) {
Nan::MaybeLocal<v8::String> maybe = Nan::To<v8::String>(value);
return maybe.ToLocal(out);
}
extern "C" bool Neon_Convert_ToObject(v8::Local<v8::Object> *out, v8::Local<v8::Value> *value) {
Nan::MaybeLocal<v8::Object> maybe = Nan::To<v8::Object>(*value);
return maybe.ToLocal(out);
}
extern "C" bool Neon_Buffer_New(v8::Local<v8::Object> *out, uint32_t size) {
Nan::MaybeLocal<v8::Object> maybe = Nan::NewBuffer(size);
if (!maybe.ToLocal(out)) {
return false;
}
void *data = node::Buffer::Data(*out);
memset(data, 0, size);
return true;
}
extern "C" bool Neon_Buffer_Uninitialized(v8::Local<v8::Object> *out, uint32_t size) {
Nan::MaybeLocal<v8::Object> maybe = Nan::NewBuffer(size);
return maybe.ToLocal(out);
}
extern "C" size_t Neon_Buffer_Data(void **base_out, v8::Local<v8::Object> obj) {
*base_out = node::Buffer::Data(obj);
return node::Buffer::Length(obj);
}
extern "C" bool Neon_Tag_IsBuffer(v8::Isolate *isolate, v8::Local<v8::Value> obj) {
return node::Buffer::HasInstance(obj);
}
extern "C" bool Neon_ArrayBuffer_New(v8::Local<v8::ArrayBuffer> *out, v8::Isolate *isolate, uint32_t size) {
*out = v8::ArrayBuffer::New(isolate, size);
return true;
}
extern "C" size_t Neon_ArrayBuffer_Data(void **base_out, v8::Local<v8::ArrayBuffer> buffer) {
v8::ArrayBuffer::Contents contents = buffer->GetContents();
*base_out = contents.Data();
return contents.ByteLength();
}
extern "C" bool Neon_Tag_IsArrayBuffer(v8::Isolate *isolate, v8::Local<v8::Value> value) {
return value->IsArrayBuffer();
}
extern "C" void Neon_Scope_Escape(v8::Local<v8::Value> *out, Nan::EscapableHandleScope *scope, v8::Local<v8::Value> value) {
*out = scope->Escape(value);
}
extern "C" void Neon_Scope_Chained(void *out, void *closure, Neon_ChainedScopeCallback callback, void *parent_scope) {
Nan::EscapableHandleScope v8_scope;
callback(out, parent_scope, &v8_scope, closure);
}
extern "C" void Neon_Scope_Nested(void *out, void *closure, Neon_NestedScopeCallback callback, void *realm) {
Nan::HandleScope v8_scope;
callback(out, realm, closure);
}
extern "C" void Neon_Scope_Enter(v8::HandleScope *scope, v8::Isolate *isolate) {
void *p = scope;
::new (p) v8::HandleScope(isolate);
}
extern "C" void Neon_Scope_Exit(v8::HandleScope *scope) {
scope->HandleScope::~HandleScope();
}
extern "C" void Neon_Scope_Enter_Escapable(v8::EscapableHandleScope *scope, v8::Isolate *isolate) {
void *p = scope;
::new (p) v8::EscapableHandleScope(isolate);
}
extern "C" void Neon_Scope_Exit_Escapable(v8::EscapableHandleScope *scope) {
scope->EscapableHandleScope::~EscapableHandleScope();
}
extern "C" size_t Neon_Scope_Sizeof() {
return sizeof(v8::HandleScope);
}
extern "C" size_t Neon_Scope_Alignof() {
return alignof(v8::HandleScope);
}
extern "C" size_t Neon_Scope_SizeofEscapable() {
return sizeof(v8::EscapableHandleScope);
}
extern "C" size_t Neon_Scope_AlignofEscapable() {
return alignof(v8::EscapableHandleScope);
}
extern "C" void Neon_Scope_GetGlobal(v8::Isolate *isolate, v8::Local<v8::Value> *out) {
auto ctx = isolate->GetCurrentContext();
*out = ctx->Global();
}
extern "C" uint32_t Neon_Module_GetVersion() {
return NODE_MODULE_VERSION;
}
extern "C" void Neon_Class_ConstructBaseCallback(const v8::FunctionCallbackInfo<v8::Value>& info) {
Nan::HandleScope scope;
v8::Local<v8::External> wrapper = v8::Local<v8::External>::Cast(info.Data());
neon::BaseClassMetadata *metadata = static_cast<neon::BaseClassMetadata *>(wrapper->Value());
if (info.IsConstructCall()) {
metadata->construct(info);
} else {
metadata->call(info);
}
}
extern "C" void *Neon_Class_CreateBase(v8::Isolate *isolate,
callback_t allocate,
callback_t construct,
callback_t call,
Neon_DropCallback drop)
{
Neon_AllocateCallback allocate_callback = reinterpret_cast<Neon_AllocateCallback>(allocate.static_callback);
Neon_ConstructCallback construct_callback = reinterpret_cast<Neon_ConstructCallback>(construct.static_callback);
v8::FunctionCallback call_callback = reinterpret_cast<v8::FunctionCallback>(call.static_callback);
neon::BaseClassMetadata *metadata = new neon::BaseClassMetadata(construct_callback, construct.dynamic_callback, call_callback, call.dynamic_callback, allocate_callback, allocate.dynamic_callback, drop);
v8::Local<v8::External> data = v8::External::New(isolate, metadata);
v8::Local<v8::FunctionTemplate> constructor_template = v8::FunctionTemplate::New(isolate, Neon_Class_ConstructBaseCallback, data);
metadata->SetTemplate(isolate, constructor_template);
v8::Local<v8::ObjectTemplate> instance_template = constructor_template->InstanceTemplate();
instance_template->SetInternalFieldCount(1); // index 0: an aligned, owned pointer to the internals (a user-defined Rust data structure)
return metadata;
}
extern "C" void *Neon_Class_GetClassMap(v8::Isolate *isolate) {
neon::ClassMapHolder *holder = static_cast<neon::ClassMapHolder *>(isolate->GetData(NEON_ISOLATE_SLOT));
return (holder == nullptr)
? nullptr
: holder->GetMap();
}
void cleanup_class_map(void *arg) {
neon::ClassMapHolder *holder = static_cast<neon::ClassMapHolder *>(arg);
delete holder;
}
extern "C" void Neon_Class_SetClassMap(v8::Isolate *isolate, void *map, Neon_DropCallback drop_map) {
neon::ClassMapHolder *holder = new neon::ClassMapHolder(map, drop_map);
isolate->SetData(NEON_ISOLATE_SLOT, holder);
// ISSUE(#77): When workers land in node, this will need to be generalized to a per-worker version.
node::AtExit(cleanup_class_map, holder);
}
extern "C" void *Neon_Class_GetCallKernel(v8::Local<v8::External> wrapper) {
neon::ClassMetadata *metadata = static_cast<neon::ClassMetadata *>(wrapper->Value());
return metadata->GetCallKernel();
}
extern "C" void *Neon_Class_GetConstructKernel(v8::Local<v8::External> wrapper) {
neon::ClassMetadata *metadata = static_cast<neon::ClassMetadata *>(wrapper->Value());
return metadata->GetConstructKernel();
}
extern "C" void *Neon_Class_GetAllocateKernel(v8::Local<v8::External> wrapper) {
neon::BaseClassMetadata *metadata = static_cast<neon::BaseClassMetadata *>(wrapper->Value());
return metadata->GetAllocateKernel();
}
extern "C" bool Neon_Class_Constructor(v8::Local<v8::Function> *out, v8::Local<v8::FunctionTemplate> ft) {
v8::MaybeLocal<v8::Function> maybe = Nan::GetFunction(ft);
return maybe.ToLocal(out);
}
extern "C" bool Neon_Class_HasInstance(void *metadata_pointer, v8::Local<v8::Value> v) {
neon::ClassMetadata *metadata = static_cast<neon::ClassMetadata *>(metadata_pointer);
return metadata->GetTemplate(v8::Isolate::GetCurrent())->HasInstance(v);
}
extern "C" bool Neon_Class_SetName(v8::Isolate *isolate, void *metadata_pointer, const char *name, uint32_t byte_length) {
neon::ClassMetadata *metadata = static_cast<neon::ClassMetadata *>(metadata_pointer);
v8::Local<v8::FunctionTemplate> ft = metadata->GetTemplate(isolate);
v8::MaybeLocal<v8::String> maybe_class_name = v8::String::NewFromUtf8(isolate, name, v8::NewStringType::kNormal, byte_length);
v8::Local<v8::String> class_name;
if (!maybe_class_name.ToLocal(&class_name)) {
return false;
}
ft->SetClassName(class_name);
metadata->SetName(neon::Slice(name, byte_length));
return true;
}
extern "C" size_t Neon_Class_GetName(const char **chars_out, v8::Isolate *isolate, void *metadata_pointer) {
neon::ClassMetadata *metadata = static_cast<neon::ClassMetadata *>(metadata_pointer);
neon::Slice name = metadata->GetName();
*chars_out = name.GetBuffer();
return name.GetLength();
}
extern "C" void Neon_Class_ThrowCallError(v8::Isolate *isolate, void *metadata_pointer) {
neon::ClassMetadata *metadata = static_cast<neon::ClassMetadata *>(metadata_pointer);
Nan::ThrowTypeError(metadata->GetCallError().ToJsString(isolate, "constructor called without new."));
}
extern "C" void Neon_Class_ThrowThisError(v8::Isolate *isolate, void *metadata_pointer) {
neon::ClassMetadata *metadata = static_cast<neon::ClassMetadata *>(metadata_pointer);
Nan::ThrowTypeError(metadata->GetThisError().ToJsString(isolate, "this is not an object of the expected type."));
}
extern "C" bool Neon_Class_AddMethod(v8::Isolate *isolate, void *metadata_pointer, const char *name, uint32_t byte_length, v8::Local<v8::FunctionTemplate> method) {
neon::ClassMetadata *metadata = static_cast<neon::ClassMetadata *>(metadata_pointer);
v8::Local<v8::FunctionTemplate> ft = metadata->GetTemplate(isolate);
v8::Local<v8::ObjectTemplate> pt = ft->PrototypeTemplate();
Nan::HandleScope scope;
v8::MaybeLocal<v8::String> maybe_key = v8::String::NewFromUtf8(isolate, name, v8::NewStringType::kNormal, byte_length);
v8::Local<v8::String> key;
if (!maybe_key.ToLocal(&key)) {
return false;
}
pt->Set(key, method);
return true;
}
extern "C" bool Neon_Class_MetadataToConstructor(v8::Local<v8::Function> *out, v8::Isolate *isolate, void *metadata) {
v8::Local<v8::FunctionTemplate> ft = static_cast<neon::ClassMetadata *>(metadata)->GetTemplate(isolate);
v8::MaybeLocal<v8::Function> maybe = Nan::GetFunction(ft);
return maybe.ToLocal(out);
}
extern "C" void *Neon_Class_GetInstanceInternals(v8::Local<v8::Object> obj) {
return static_cast<neon::BaseClassInstanceMetadata *>(obj->GetAlignedPointerFromInternalField(0))->GetInternals();
}
extern "C" bool Neon_Fun_Template_New(v8::Local<v8::FunctionTemplate> *out, v8::Isolate *isolate, callback_t callback) {
v8::Local<v8::External> wrapper = v8::External::New(isolate, callback.dynamic_callback);
if (wrapper.IsEmpty()) {
return false;
}
v8::FunctionCallback static_callback = reinterpret_cast<v8::FunctionCallback>(callback.static_callback);
v8::MaybeLocal<v8::FunctionTemplate> maybe_result = v8::FunctionTemplate::New(isolate, static_callback, wrapper);
return maybe_result.ToLocal(out);
}
extern "C" bool Neon_Fun_New(v8::Local<v8::Function> *out, v8::Isolate *isolate, callback_t callback) {
v8::Local<v8::External> wrapper = v8::External::New(isolate, callback.dynamic_callback);
if (wrapper.IsEmpty()) {
return false;
}
v8::FunctionCallback static_callback = reinterpret_cast<v8::FunctionCallback>(callback.static_callback);
v8::MaybeLocal<v8::Function> maybe_result = v8::Function::New(isolate->GetCurrentContext(), static_callback, wrapper);
return maybe_result.ToLocal(out);
}
extern "C" void *Neon_Fun_GetDynamicCallback(v8::Local<v8::External> data) {
return data->Value();
}
extern "C" bool Neon_Fun_Call(v8::Local<v8::Value> *out, v8::Isolate *isolate, v8::Local<v8::Function> fun, v8::Local<v8::Value> self, int32_t argc, v8::Local<v8::Value> argv[]) {
v8::MaybeLocal<v8::Value> maybe_result = fun->Call(isolate->GetCurrentContext(), self, argc, argv);
return maybe_result.ToLocal(out);
}
extern "C" bool Neon_Fun_Construct(v8::Local<v8::Object> *out, v8::Isolate *isolate, v8::Local<v8::Function> fun, int32_t argc, v8::Local<v8::Value> argv[]) {
v8::MaybeLocal<v8::Object> maybe_result = fun->NewInstance(isolate->GetCurrentContext(), argc, argv);
return maybe_result.ToLocal(out);
}
extern "C" bool Neon_Tag_IsUndefined(v8::Isolate *isolate, v8::Local<v8::Value> val) {
return val->IsUndefined();
}
extern "C" bool Neon_Tag_IsNull(v8::Isolate *isolate, v8::Local<v8::Value> val) {
return val->IsNull();
}
extern "C" bool Neon_Tag_IsNumber(v8::Isolate *isolate, v8::Local<v8::Value> val) {
return val->IsNumber();
}
extern "C" bool Neon_Tag_IsBoolean(v8::Isolate *isolate, v8::Local<v8::Value> val) {
return val->IsBoolean();
}
extern "C" bool Neon_Tag_IsString(v8::Isolate *isolate, v8::Local<v8::Value> val) {
return val->IsString();
}
extern "C" bool Neon_Tag_IsObject(v8::Isolate *isolate, v8::Local<v8::Value> val) {
return val->IsObject();
}
extern "C" bool Neon_Tag_IsArray(v8::Isolate *isolate, v8::Local<v8::Value> val) {
return val->IsArray();
}
extern "C" bool Neon_Tag_IsFunction(v8::Isolate *isolate, v8::Local<v8::Value> val) {
return val->IsFunction();
}
extern "C" bool Neon_Tag_IsError(v8::Isolate *isolate, v8::Local<v8::Value> val) {
return val->IsNativeError();
}
extern "C" void Neon_Error_Throw(v8::Local<v8::Value> val) {
Nan::ThrowError(val);
}
extern "C" void Neon_Error_NewError(v8::Local<v8::Value> *out, v8::Local<v8::String> msg) {
*out = v8::Exception::Error(msg);
}
extern "C" void Neon_Error_NewTypeError(v8::Local<v8::Value> *out, v8::Local<v8::String> msg) {
*out = v8::Exception::TypeError(msg);
}
extern "C" void Neon_Error_NewRangeError(v8::Local<v8::Value> *out, v8::Local<v8::String> msg) {
*out = v8::Exception::RangeError(msg);
}
extern "C" void Neon_Error_ThrowErrorFromUtf8(const uint8_t *data, int32_t len) {
v8::Isolate *isolate = v8::Isolate::GetCurrent();
Nan::MaybeLocal<v8::String> maybe = v8::String::NewFromUtf8(isolate, (const char*)data, v8::NewStringType::kNormal, len);
v8::Local<v8::String> msg;
if (!maybe.ToLocal(&msg)) {
Nan::ThrowError("an unknown Neon error occurred");
return;
}
v8::Local<v8::Value> err = v8::Exception::Error(msg);
Nan::ThrowError(err);
}
extern "C" bool Neon_Mem_SameHandle(v8::Local<v8::Value> v1, v8::Local<v8::Value> v2) {
return v1 == v2;
}
extern "C" void Neon_Task_Schedule(void *task, Neon_TaskPerformCallback perform, Neon_TaskCompleteCallback complete, v8::Local<v8::Function> callback) {
v8::Isolate *isolate = v8::Isolate::GetCurrent();
neon::Task *internal_task = new neon::Task(isolate, task, perform, complete, callback);
neon::queue_task(internal_task);
}
extern "C" void* Neon_EventHandler_New(v8::Isolate *isolate, v8::Local<v8::Value> self, v8::Local<v8::Function> callback) {
return new neon::EventHandler(isolate, self, callback);
}
extern "C" void Neon_EventHandler_Schedule(void *thread_safe_cb, void *rust_callback, Neon_EventHandler handler) {
neon::EventHandler *cb = static_cast<neon::EventHandler*>(thread_safe_cb);
cb->schedule(rust_callback, handler);
}
extern "C" void Neon_EventHandler_Delete(void * thread_safe_cb) {
neon::EventHandler *cb = static_cast<neon::EventHandler*>(thread_safe_cb);
cb->close();
}