feat(js_native_api): Add more missing js functions

Author: abhisekp

js_native_api.go

@@ -110,12 +110,19 @@ func CreateSymbol(env Env, description Value) (Value, Status) {
 }
 
 func CreateFunction(env Env, name string, cb Callback) (Value, Status) {
-	provider, status := getInstanceData(env)
-	if status != StatusOK || provider == nil {
-		return nil, status
-	}
+	cname := C.CString(name)
+	defer C.free(unsafe.Pointer(cname))
 
-	return provider.GetCallbackData().CreateCallback(env, name, cb)
+	var result Value
+	status := Status(C.napi_create_function(
+		C.napi_env(env),
+		cname,
+		C.size_t(len(name)),
+		C.napi_callback(cb),
+		unsafe.Pointer(nil),
+		(*C.napi_value)(unsafe.Pointer(&result)),
+	))
+	return result, status
 }
 
 func CreateError(env Env, code, msg Value) (Value, Status) {
@@ -235,45 +242,17 @@ type GetCbInfoResult struct {
 	This Value
 }
 
-func GetCbInfo(env Env, info CallbackInfo) (GetCbInfoResult, Status) {
-	// call napi_get_cb_info twice
-	// first is to get total number of arguments
-	// second is to populate the actual arguments
-	argc := C.size_t(0)
+func GetCbInfo(env Env, info CallbackInfo, argc int, argv []Value, thisArg *Value) Status {
+	cArgv := (*C.napi_value)(unsafe.Pointer(&argv[0]))
 	status := Status(C.napi_get_cb_info(
 		C.napi_env(env),
 		C.napi_callback_info(info),
-		&argc,
-		nil,
-		nil,
-		nil,
-	))
-
-	if status != StatusOK {
-		return GetCbInfoResult{}, status
-	}
-
-	argv := make([]Value, int(argc))
-	var cArgv unsafe.Pointer
-	if argc > 0 {
-		cArgv = unsafe.Pointer(&argv[0]) // must pass element pointer
-	}
-
-	var thisArg Value
-
-	status = Status(C.napi_get_cb_info(
-		C.napi_env(env),
-		C.napi_callback_info(info),
-		&argc,
-		(*C.napi_value)(cArgv),
-		(*C.napi_value)(unsafe.Pointer(&thisArg)),
-		nil,
+		(*C.size_t)(unsafe.Pointer(&argc)),
+		cArgv,
+		(*C.napi_value)(unsafe.Pointer(thisArg)),
+		unsafe.Pointer(nil),
 	))
-
-	return GetCbInfoResult{
-		Args: argv,
-		This: thisArg,
-	}, status
+	return status
 }
 
 func Throw(env Env, err Value) Status {
@@ -1163,3 +1142,38 @@ func CreateStringUtf16(env Env, str []uint16) (Value, Status) {
 	))
 	return result, status
 }
+
+func CallFunction(env Env, recv Value, fn Value, argc int, argv []Value) (Value, Status) {
+	var result Value
+	status := Status(C.napi_call_function(
+		C.napi_env(env),
+		C.napi_value(recv),
+		C.napi_value(fn),
+		C.size_t(argc),
+		(*C.napi_value)(unsafe.Pointer(&argv[0])),
+		(*C.napi_value)(unsafe.Pointer(&result)),
+	))
+	return result, status
+}
+
+func GetNewTarget(env Env, info CallbackInfo) (Value, Status) {
+	var result Value
+	status := Status(C.napi_get_new_target(
+		C.napi_env(env),
+		C.napi_callback_info(info),
+		(*C.napi_value)(unsafe.Pointer(&result)),
+	))
+	return result, status
+}
+
+func NewInstance(env Env, constructor Value, argc int, argv []Value) (Value, Status) {
+	var result Value
+	status := Status(C.napi_new_instance(
+		C.napi_env(env),
+		C.napi_value(constructor),
+		C.size_t(argc),
+		(*C.napi_value)(unsafe.Pointer(&argv[0])),
+		(*C.napi_value)(unsafe.Pointer(&result)),
+	))
+	return result, status
+}