Throw error if N-API call fails

ced.cpp

@@ -10,12 +10,18 @@ napi_value Method(napi_env env, napi_callback_info info) {
   size_t argc = 1;
   napi_value args[1];
   status = napi_get_cb_info(env, info, &argc, args, nullptr, nullptr);
-  if (status != napi_ok) return nullptr;
+  if (status != napi_ok) {
+    napi_throw_error(env, NULL, "N-API call failed");
+    return nullptr;
+  }
 
   void* buf;
   size_t buf_length;
   status = napi_get_buffer_info(env, args[0], &buf, &buf_length);
-  if (status != napi_ok) return nullptr;
+  if (status != napi_ok) {
+    napi_throw_error(env, NULL, "N-API call failed");
+    return nullptr;
+  }
 
   const char* text = static_cast<const char*>(buf);
   size_t text_length = buf_length;
@@ -32,7 +38,10 @@ napi_value Method(napi_env env, napi_callback_info info) {
   napi_value encodingName;
   status = napi_create_string_utf8(env, encoding_name, NAPI_AUTO_LENGTH,
                                    &encodingName);
-  if (status != napi_ok) return nullptr;
+  if (status != napi_ok) {
+    napi_throw_error(env, NULL, "N-API call failed");
+    return nullptr;
+  }
 
   return encodingName;
 }
@@ -42,10 +51,16 @@ napi_value init(napi_env env, napi_value exports) {
   napi_value fn;
 
   status = napi_create_function(env, nullptr, 0, Method, nullptr, &fn);
-  if (status != napi_ok) return nullptr;
+  if (status != napi_ok) {
+    napi_throw_error(env, NULL, "N-API call failed");
+    return nullptr;
+  }
 
   status = napi_set_named_property(env, exports, "detectEncoding", fn);
-  if (status != napi_ok) return nullptr;
+  if (status != napi_ok) {
+    napi_throw_error(env, NULL, "N-API call failed");
+    return nullptr;
+  }
 
   return exports;
 }