diff --git a/td/telegram/MessagesDb.cpp b/td/telegram/MessagesDb.cpp
index 905019e96..125391b79 100644
--- a/td/telegram/MessagesDb.cpp
+++ b/td/telegram/MessagesDb.cpp
@@ -847,16 +847,14 @@ class MessagesDbImpl : public MessagesDbSyncInterface {
         left_cnt++;
       }
 
-      TRY_RESULT(left_tmp, get_messages_inner(stmt.desc_stmt_, dialog_id, left_message_id, left_cnt));
-      left = std::move(left_tmp);
+      TRY_RESULT_ASSIGN(left, get_messages_inner(stmt.desc_stmt_, dialog_id, left_message_id, left_cnt));
 
       if (right_cnt == 1 && !left.empty() && false /*get_message_id(left[0].as_slice()) == message_id*/) {
         right_cnt = 0;
       }
     }
     if (right_cnt != 0) {
-      TRY_RESULT(right_tmp, get_messages_inner(stmt.asc_stmt_, dialog_id, right_message_id, right_cnt));
-      right = std::move(right_tmp);
+      TRY_RESULT_ASSIGN(right, get_messages_inner(stmt.asc_stmt_, dialog_id, right_message_id, right_cnt));
       std::reverse(right.begin(), right.end());
     }
     if (left.empty()) {
diff --git a/td/telegram/NotificationManager.cpp b/td/telegram/NotificationManager.cpp
index b480e2246..f8842f0df 100644
--- a/td/telegram/NotificationManager.cpp
+++ b/td/telegram/NotificationManager.cpp
@@ -3210,8 +3210,7 @@ Status NotificationManager::process_push_notification_payload(string payload, bo
     if (mtpeer.type() != JsonValue::Type::Null) {
       TRY_RESULT(ah, get_json_object_string_field(mtpeer.get_object(), "ah"));
       if (!ah.empty()) {
-        TRY_RESULT(sender_access_hash_safe, to_integer_safe<int64>(ah));
-        sender_access_hash = sender_access_hash_safe;
+        TRY_RESULT_ASSIGN(sender_access_hash, to_integer_safe<int64>(ah));
       }
       TRY_RESULT(ph, get_json_object_field(mtpeer.get_object(), "ph", JsonValue::Type::Object));
       if (ph.type() != JsonValue::Type::Null) {
diff --git a/td/telegram/ReplyMarkup.cpp b/td/telegram/ReplyMarkup.cpp
index 95c6576b6..052832e8c 100644
--- a/td/telegram/ReplyMarkup.cpp
+++ b/td/telegram/ReplyMarkup.cpp
@@ -380,8 +380,8 @@ static Result<InlineKeyboardButton> get_inline_keyboard_button(tl_object_ptr<td_
   switch (button_type_id) {
     case td_api::inlineKeyboardButtonTypeUrl::ID: {
       current_button.type = InlineKeyboardButton::Type::Url;
-      TRY_RESULT(url, check_url(static_cast<const td_api::inlineKeyboardButtonTypeUrl *>(button->type_.get())->url_));
-      current_button.data = std::move(url);
+      TRY_RESULT_ASSIGN(current_button.data,
+                        check_url(static_cast<const td_api::inlineKeyboardButtonTypeUrl *>(button->type_.get())->url_));
       if (!clean_input_string(current_button.data)) {
         return Status::Error(400, "Inline keyboard button url must be encoded in UTF-8");
       }
@@ -420,8 +420,7 @@ static Result<InlineKeyboardButton> get_inline_keyboard_button(tl_object_ptr<td_
     case td_api::inlineKeyboardButtonTypeLoginUrl::ID: {
       current_button.type = InlineKeyboardButton::Type::UrlAuth;
       auto login_url = td_api::move_object_as<td_api::inlineKeyboardButtonTypeLoginUrl>(button->type_);
-      TRY_RESULT(url, check_url(login_url->url_));
-      current_button.data = std::move(url);
+      TRY_RESULT_ASSIGN(current_button.data, check_url(login_url->url_));
       current_button.forward_text = std::move(login_url->forward_text_);
       if (!clean_input_string(current_button.data)) {
         return Status::Error(400, "Inline keyboard button login url must be encoded in UTF-8");
diff --git a/td/telegram/SecureValue.cpp b/td/telegram/SecureValue.cpp
index 528b5286d..d1ca22084 100644
--- a/td/telegram/SecureValue.cpp
+++ b/td/telegram/SecureValue.cpp
@@ -892,19 +892,15 @@ static Result<SecureValue> get_identity_document(SecureValueType type, FileManag
     }
   }
 
-  TRY_RESULT(front_side, get_secure_file(file_manager, std::move(identity_document->front_side_)));
-  res.front_side = std::move(front_side);
+  TRY_RESULT_ASSIGN(res.front_side, get_secure_file(file_manager, std::move(identity_document->front_side_)));
   if (identity_document->reverse_side_ != nullptr) {
-    TRY_RESULT(reverse_side, get_secure_file(file_manager, std::move(identity_document->reverse_side_)));
-    res.reverse_side = std::move(reverse_side);
+    TRY_RESULT_ASSIGN(res.reverse_side, get_secure_file(file_manager, std::move(identity_document->reverse_side_)));
   }
   if (identity_document->selfie_ != nullptr) {
-    TRY_RESULT(selfie, get_secure_file(file_manager, std::move(identity_document->selfie_)));
-    res.selfie = std::move(selfie);
+    TRY_RESULT_ASSIGN(res.selfie, get_secure_file(file_manager, std::move(identity_document->selfie_)));
   }
   if (!identity_document->translation_.empty()) {
-    TRY_RESULT(translations, get_secure_files(file_manager, std::move(identity_document->translation_)));
-    res.translations = std::move(translations);
+    TRY_RESULT_ASSIGN(res.translations, get_secure_files(file_manager, std::move(identity_document->translation_)));
   }
   return res;
 }
@@ -962,11 +958,9 @@ static Result<SecureValue> get_personal_document(
   if (personal_document->files_.empty()) {
     return Status::Error(400, "Document's files are required");
   }
-  TRY_RESULT(files, get_secure_files(file_manager, std::move(personal_document->files_)));
-  res.files = std::move(files);
+  TRY_RESULT_ASSIGN(res.files, get_secure_files(file_manager, std::move(personal_document->files_)));
   if (!personal_document->translation_.empty()) {
-    TRY_RESULT(translations, get_secure_files(file_manager, std::move(personal_document->translation_)));
-    res.translations = std::move(translations);
+    TRY_RESULT_ASSIGN(res.translations, get_secure_files(file_manager, std::move(personal_document->translation_)));
   }
   return res;
 }
@@ -1002,8 +996,7 @@ Result<SecureValue> get_secure_value(FileManager *file_manager,
     case td_api::inputPassportElementPersonalDetails::ID: {
       auto input = td_api::move_object_as<td_api::inputPassportElementPersonalDetails>(input_passport_element);
       res.type = SecureValueType::PersonalDetails;
-      TRY_RESULT(personal_details, get_personal_details(std::move(input->personal_details_)));
-      res.data = std::move(personal_details);
+      TRY_RESULT_ASSIGN(res.data, get_personal_details(std::move(input->personal_details_)));
       break;
     }
     case td_api::inputPassportElementPassport::ID: {
@@ -1455,7 +1448,7 @@ static auto credentials_as_jsonable(const std::vector<SecureValueCredentials> &c
             }));
         }
       }));
-    o(rename_payload_to_nonce ? "nonce" : "payload", nonce);
+    o(rename_payload_to_nonce ? Slice("nonce") : Slice("payload"), nonce);
   });
 }
 
diff --git a/td/telegram/files/FileDownloader.cpp b/td/telegram/files/FileDownloader.cpp
index f77f7af76..094f2d0ce 100644
--- a/td/telegram/files/FileDownloader.cpp
+++ b/td/telegram/files/FileDownloader.cpp
@@ -135,8 +135,7 @@ Status FileDownloader::on_ok(int64 size) {
   if (only_check_) {
     path = path_;
   } else {
-    TRY_RESULT(perm_path, create_from_temp(path_, dir, name_));
-    path = std::move(perm_path);
+    TRY_RESULT_ASSIGN(path, create_from_temp(path_, dir, name_));
   }
   callback_->on_ok(FullLocalFileLocation(remote_.file_type_, std::move(path), 0), size, !only_check_);
   return Status::OK();
@@ -492,11 +491,9 @@ void FileDownloader::try_release_fd() {
 Status FileDownloader::acquire_fd() {
   if (fd_.empty()) {
     if (path_.empty()) {
-      TRY_RESULT(file_path, open_temp_file(remote_.file_type_));
-      std::tie(fd_, path_) = std::move(file_path);
+      TRY_RESULT_ASSIGN(std::tie(fd_, path_), open_temp_file(remote_.file_type_));
     } else {
-      TRY_RESULT(fd, FileFd::open(path_, (only_check_ ? 0 : FileFd::Write) | FileFd::Read));
-      fd_ = std::move(fd);
+      TRY_RESULT_ASSIGN(fd_, FileFd::open(path_, (only_check_ ? 0 : FileFd::Write) | FileFd::Read));
     }
   }
   return Status::OK();
diff --git a/td/telegram/files/FileUploader.cpp b/td/telegram/files/FileUploader.cpp
index cd7519ed4..b8c3be64b 100644
--- a/td/telegram/files/FileUploader.cpp
+++ b/td/telegram/files/FileUploader.cpp
@@ -167,8 +167,7 @@ Result<FileLoader::PrefixInfo> FileUploader::on_update_local_location(const Loca
   }
   if (local_is_ready) {
     CHECK(!fd_.empty());
-    TRY_RESULT(local_file_size, fd_.get_size());
-    local_size = local_file_size;
+    TRY_RESULT_ASSIGN(local_size, fd_.get_size());
     LOG(INFO) << "Set file local_size to " << local_size;
     if (local_size == 0) {
       return Status::Error("Can't upload empty file");
@@ -338,8 +337,7 @@ void FileUploader::try_release_fd() {
 
 Status FileUploader::acquire_fd() {
   if (fd_.empty()) {
-    TRY_RESULT(fd, FileFd::open(fd_path_, FileFd::Read));
-    fd_ = std::move(fd);
+    TRY_RESULT_ASSIGN(fd_, FileFd::open(fd_path_, FileFd::Read));
   }
   return Status::OK();
 }
diff --git a/td/telegram/net/ConnectionCreator.cpp b/td/telegram/net/ConnectionCreator.cpp
index f228e3fe1..040a663ea 100644
--- a/td/telegram/net/ConnectionCreator.cpp
+++ b/td/telegram/net/ConnectionCreator.cpp
@@ -685,8 +685,7 @@ Result<SocketFd> ConnectionCreator::find_connection(const Proxy &proxy, const IP
   TRY_RESULT(info, dc_options_set_.find_connection(
                        dc_id, allow_media_only, proxy.use_proxy() && proxy.use_socks5_proxy(), prefer_ipv6, only_http));
   extra.stat = info.stat;
-  TRY_RESULT(transport_type, get_transport_type(proxy, info));
-  extra.transport_type = std::move(transport_type);
+  TRY_RESULT_ASSIGN(extra.transport_type, get_transport_type(proxy, info));
 
   extra.debug_str = PSTRING() << " to " << (info.option->is_media_only() ? "MEDIA " : "") << dc_id
                               << (info.use_http ? " over HTTP" : "");
diff --git a/td/tl/tl_json.h b/td/tl/tl_json.h
index 1ff559a32..7c5751417 100644
--- a/td/tl/tl_json.h
+++ b/td/tl/tl_json.h
@@ -81,8 +81,7 @@ inline Status from_json(int32 &to, JsonValue &from) {
     return Status::Error(PSLICE() << "Expected Number, got " << from.type());
   }
   Slice number = from.type() == JsonValue::Type::String ? from.get_string() : from.get_number();
-  TRY_RESULT(res, to_integer_safe<int32>(number));
-  to = res;
+  TRY_RESULT_ASSIGN(to, to_integer_safe<int32>(number));
   return Status::OK();
 }
 
@@ -105,8 +104,7 @@ inline Status from_json(int64 &to, JsonValue &from) {
     return Status::Error(PSLICE() << "Expected String or Number, got " << from.type());
   }
   Slice number = from.type() == JsonValue::Type::String ? from.get_string() : from.get_number();
-  TRY_RESULT(res, to_integer_safe<int64>(number));
-  to = res;
+  TRY_RESULT_ASSIGN(to, to_integer_safe<int64>(number));
   return Status::OK();
 }
 
@@ -130,8 +128,7 @@ inline Status from_json_bytes(string &to, JsonValue &from) {
   if (from.type() != JsonValue::Type::String) {
     return Status::Error(PSLICE() << "Expected String, got " << from.type());
   }
-  TRY_RESULT(decoded, base64_decode(from.get_string()));
-  to = std::move(decoded);
+  TRY_RESULT_ASSIGN(to, base64_decode(from.get_string()));
   return Status::OK();
 }
 
@@ -180,8 +177,7 @@ std::enable_if_t<!std::is_constructible<T>::value, Status> from_json(tl_object_p
   if (constructor_value.type() == JsonValue::Type::Number) {
     constructor = to_integer<int32>(constructor_value.get_number());
   } else if (constructor_value.type() == JsonValue::Type::String) {
-    TRY_RESULT(t_constructor, tl_constructor_from_string(to.get(), constructor_value.get_string().str()));
-    constructor = t_constructor;
+    TRY_RESULT_ASSIGN(constructor, tl_constructor_from_string(to.get(), constructor_value.get_string().str()));
   } else {
     return Status::Error(PSLICE() << "Expected String or Integer, got " << constructor_value.type());
   }
diff --git a/tdnet/td/net/Wget.cpp b/tdnet/td/net/Wget.cpp
index bd76d04f6..d8ea8de23 100644
--- a/tdnet/td/net/Wget.cpp
+++ b/tdnet/td/net/Wget.cpp
@@ -38,8 +38,7 @@ Wget::Wget(Promise<unique_ptr<HttpQuery>> promise, string url, std::vector<std::
 
 Status Wget::try_init() {
   TRY_RESULT(url, parse_url(input_url_));
-  TRY_RESULT(ascii_host, idn_to_ascii(url.host_));
-  url.host_ = std::move(ascii_host);
+  TRY_RESULT_ASSIGN(url.host_, idn_to_ascii(url.host_));
 
   HttpHeaderCreator hc;
   if (content_.empty()) {
diff --git a/tdutils/td/utils/FileLog.cpp b/tdutils/td/utils/FileLog.cpp
index 28aa9eae4..fcc50e3c6 100644
--- a/tdutils/td/utils/FileLog.cpp
+++ b/tdutils/td/utils/FileLog.cpp
@@ -40,8 +40,7 @@ Status FileLog::init(string path, int64 rotate_threshold, bool redirect_stderr)
   } else {
     path_ = r_path.move_as_ok();
   }
-  TRY_RESULT(size, fd_.get_size());
-  size_ = size;
+  TRY_RESULT_ASSIGN(size_, fd_.get_size());
   rotate_threshold_ = rotate_threshold;
   redirect_stderr_ = redirect_stderr;
   return Status::OK();
diff --git a/tdutils/td/utils/filesystem.cpp b/tdutils/td/utils/filesystem.cpp
index 071c9a389..cf77441fc 100644
--- a/tdutils/td/utils/filesystem.cpp
+++ b/tdutils/td/utils/filesystem.cpp
@@ -41,8 +41,7 @@ template <class T>
 Result<T> read_file_impl(CSlice path, int64 size, int64 offset) {
   TRY_RESULT(from_file, FileFd::open(path, FileFd::Read));
   if (size == -1) {
-    TRY_RESULT(file_size, from_file.get_size());
-    size = file_size;
+    TRY_RESULT_ASSIGN(size, from_file.get_size());
   }
   if (size < 0) {
     return Status::Error("Failed to read file: invalid size");
diff --git a/tdutils/td/utils/port/IPAddress.cpp b/tdutils/td/utils/port/IPAddress.cpp
index 3cc8aad77..b2727aa96 100644
--- a/tdutils/td/utils/port/IPAddress.cpp
+++ b/tdutils/td/utils/port/IPAddress.cpp
@@ -386,7 +386,7 @@ Status IPAddress::init_host_port(CSlice host, CSlice port, bool prefer_ipv6) {
   }
 #endif
   TRY_RESULT(ascii_host, idn_to_ascii(host));
-  host = ascii_host;
+  host = ascii_host;  // assign string to CSlice
 
   // some getaddrinfo implementations use inet_pton instead of inet_aton and support only decimal-dotted IPv4 form,
   // and so doesn't recognize 0x12.0x34.0x56.0x78, or 0x12345678, or 0x7f.001 as valid IPv4 addresses
diff --git a/tdutils/td/utils/port/path.cpp b/tdutils/td/utils/port/path.cpp
index 8dcbc54f8..6ed127668 100644
--- a/tdutils/td/utils/port/path.cpp
+++ b/tdutils/td/utils/port/path.cpp
@@ -56,8 +56,7 @@ Status set_temporary_dir(CSlice dir) {
     input_dir += TD_DIR_SLASH;
   }
   TRY_STATUS(mkpath(input_dir, 0750));
-  TRY_RESULT(real_dir, realpath(input_dir));
-  temporary_dir = std::move(real_dir);
+  TRY_RESULT_ASSIGN(temporary_dir, realpath(input_dir));
   return Status::OK();
 }
 
@@ -419,8 +418,7 @@ Result<string> realpath(CSlice slice, bool ignore_access_denied) {
       return OS_ERROR(PSLICE() << "GetFullPathNameW failed for \"" << slice << '"');
     }
   } else {
-    TRY_RESULT(t_res, from_wstring(buf));
-    res = std::move(t_res);
+    TRY_RESULT_ASSIGN(res, from_wstring(buf));
   }
   if (res.empty()) {
     return Status::Error("Empty path");