Make PhotoSizeSource constructors named.

td/telegram/DocumentsManager.cpp

@@ -270,9 +270,9 @@ Document DocumentsManager::on_get_document(RemoteDocument remote_document, Dialo
 
     if (document_type != Document::Type::VoiceNote) {
       for (auto &thumb : document->thumbs_) {
-        auto photo_size =
-            get_photo_size(td_->file_manager_.get(), {FileType::Thumbnail, 0}, id, access_hash, file_reference,
-                           DcId::create(dc_id), owner_dialog_id, std::move(thumb), thumbnail_format);
+        auto photo_size = get_photo_size(td_->file_manager_.get(), PhotoSizeSource::thumbnail(FileType::Thumbnail, 0),
+                                         id, access_hash, file_reference, DcId::create(dc_id), owner_dialog_id,
+                                         std::move(thumb), thumbnail_format);
         if (photo_size.get_offset() == 0) {
           if (!thumbnail.file_id.is_valid()) {
             thumbnail = std::move(photo_size.get<0>());
@@ -284,8 +284,9 @@ Document DocumentsManager::on_get_document(RemoteDocument remote_document, Dialo
     }
     for (auto &thumb : document->video_thumbs_) {
       if (thumb->type_ == "v") {
-        animated_thumbnail = get_animation_size(td_->file_manager_.get(), {FileType::Thumbnail, 0}, id, access_hash,
-                                                file_reference, DcId::create(dc_id), owner_dialog_id, std::move(thumb));
+        animated_thumbnail =
+            get_animation_size(td_->file_manager_.get(), PhotoSizeSource::thumbnail(FileType::Thumbnail, 0), id,
+                               access_hash, file_reference, DcId::create(dc_id), owner_dialog_id, std::move(thumb));
         if (animated_thumbnail.file_id.is_valid()) {
           break;
         }

td/telegram/MessageContent.cpp

@@ -3159,7 +3159,8 @@ void merge_message_contents(Td *td, const MessageContent *old_content, MessageCo
                      old_file_view.main_remote_location().get_access_hash() !=
                          new_file_view.remote_location().get_access_hash()) {
             FileId file_id = td->file_manager_->register_remote(
-                FullRemoteFileLocation({FileType::Photo, 'i'}, new_file_view.remote_location().get_id(),
+                FullRemoteFileLocation(PhotoSizeSource::thumbnail(FileType::Photo, 'i'),
+                                       new_file_view.remote_location().get_id(),
                                        new_file_view.remote_location().get_access_hash(), DcId::invalid(),
                                        new_file_view.remote_location().get_file_reference().str()),
                 FileLocationSource::FromServer, dialog_id, old_photo->photos.back().size, 0, "");

td/telegram/Photo.cpp

@@ -162,12 +162,12 @@ ProfilePhoto get_profile_photo(FileManager *file_manager, UserId user_id, int64
       result.has_animation = (profile_photo->flags_ & telegram_api::userProfilePhoto::HAS_VIDEO_MASK) != 0;
       result.id = profile_photo->photo_id_;
       result.minithumbnail = profile_photo->stripped_thumb_.as_slice().str();
-      result.small_file_id =
-          register_photo(file_manager, {DialogId(user_id), user_access_hash, false}, result.id, 0 /*access_hash*/,
-                         "" /*file_reference*/, DialogId(), 0 /*file_size*/, dc_id, PhotoFormat::Jpeg);
-      result.big_file_id =
-          register_photo(file_manager, {DialogId(user_id), user_access_hash, true}, result.id, 0 /*access_hash*/,
-                         "" /*file_reference*/, DialogId(), 0 /*file_size*/, dc_id, PhotoFormat::Jpeg);
+      result.small_file_id = register_photo(
+          file_manager, PhotoSizeSource::dialog_photo(DialogId(user_id), user_access_hash, false), result.id,
+          0 /*access_hash*/, "" /*file_reference*/, DialogId(), 0 /*file_size*/, dc_id, PhotoFormat::Jpeg);
+      result.big_file_id = register_photo(
+          file_manager, PhotoSizeSource::dialog_photo(DialogId(user_id), user_access_hash, true), result.id,
+          0 /*access_hash*/, "" /*file_reference*/, DialogId(), 0 /*file_size*/, dc_id, PhotoFormat::Jpeg);
       break;
     }
     default:
@@ -223,10 +223,12 @@ DialogPhoto get_dialog_photo(FileManager *file_manager, DialogId dialog_id, int6
       auto dc_id = DcId::create(chat_photo->dc_id_);
       result.has_animation = (chat_photo->flags_ & telegram_api::chatPhoto::HAS_VIDEO_MASK) != 0;
       result.minithumbnail = chat_photo->stripped_thumb_.as_slice().str();
-      result.small_file_id = register_photo(file_manager, {dialog_id, dialog_access_hash, false}, chat_photo->photo_id_,
-                                            0, "", DialogId(), 0, dc_id, PhotoFormat::Jpeg);
-      result.big_file_id = register_photo(file_manager, {dialog_id, dialog_access_hash, true}, chat_photo->photo_id_, 0,
-                                          "", DialogId(), 0, dc_id, PhotoFormat::Jpeg);
+      result.small_file_id =
+          register_photo(file_manager, PhotoSizeSource::dialog_photo(dialog_id, dialog_access_hash, false),
+                         chat_photo->photo_id_, 0, "", DialogId(), 0, dc_id, PhotoFormat::Jpeg);
+      result.big_file_id =
+          register_photo(file_manager, PhotoSizeSource::dialog_photo(dialog_id, dialog_access_hash, true),
+                         chat_photo->photo_id_, 0, "", DialogId(), 0, dc_id, PhotoFormat::Jpeg);
 
       break;
     }
@@ -293,7 +295,7 @@ ProfilePhoto as_profile_photo(FileManager *file_manager, UserId user_id, int64 u
     auto remote = file_view.remote_location();
     CHECK(remote.is_photo());
     CHECK(!remote.is_web());
-    remote.set_source({DialogId(user_id), user_access_hash, is_big});
+    remote.set_source(PhotoSizeSource::dialog_photo(DialogId(user_id), user_access_hash, is_big));
     return file_manager->register_remote(std::move(remote), FileLocationSource::FromServer, DialogId(),
                                          file_view.size(), file_view.expected_size(), file_view.remote_name());
   };
@@ -335,7 +337,8 @@ PhotoSize get_secret_thumbnail_photo_size(FileManager *file_manager, BufferSlice
   auto photo_id = -(Random::secure_int64() & std::numeric_limits<int64>::max());
 
   res.file_id = file_manager->register_remote(
-      FullRemoteFileLocation(PhotoSizeSource(FileType::EncryptedThumbnail, 't'), photo_id, 0, dc_id, string()),
+      FullRemoteFileLocation(PhotoSizeSource::thumbnail(FileType::EncryptedThumbnail, 't'), photo_id, 0, dc_id,
+                             string()),
       FileLocationSource::FromServer, owner_dialog_id, res.size, 0,
       PSTRING() << static_cast<uint64>(photo_id) << ".jpg");
   file_manager->set_content(res.file_id, std::move(bytes));
@@ -708,9 +711,9 @@ Photo get_photo(FileManager *file_manager, tl_object_ptr<telegram_api::photo> &&
 
   DcId dc_id = DcId::create(photo->dc_id_);
   for (auto &size_ptr : photo->sizes_) {
-    auto photo_size = get_photo_size(file_manager, {FileType::Photo, 0}, photo->id_, photo->access_hash_,
-                                     photo->file_reference_.as_slice().str(), dc_id, owner_dialog_id,
-                                     std::move(size_ptr), PhotoFormat::Jpeg);
+    auto photo_size = get_photo_size(file_manager, PhotoSizeSource::thumbnail(FileType::Photo, 0), photo->id_,
+                                     photo->access_hash_, photo->file_reference_.as_slice().str(), dc_id,
+                                     owner_dialog_id, std::move(size_ptr), PhotoFormat::Jpeg);
     if (photo_size.get_offset() == 0) {
       PhotoSize &size = photo_size.get<0>();
       if (size.type == 0 || size.type == 't' || size.type == 'i' || size.type == 'u' || size.type == 'v') {
@@ -724,9 +727,9 @@ Photo get_photo(FileManager *file_manager, tl_object_ptr<telegram_api::photo> &&
   }
 
   for (auto &size_ptr : photo->video_sizes_) {
-    auto animation =
-        get_animation_size(file_manager, {FileType::Photo, 0}, photo->id_, photo->access_hash_,
-                           photo->file_reference_.as_slice().str(), dc_id, owner_dialog_id, std::move(size_ptr));
+    auto animation = get_animation_size(file_manager, PhotoSizeSource::thumbnail(FileType::Photo, 0), photo->id_,
+                                        photo->access_hash_, photo->file_reference_.as_slice().str(), dc_id,
+                                        owner_dialog_id, std::move(size_ptr));
     if (animation.type != 0 && animation.dimensions.width == animation.dimensions.height) {
       res.animations.push_back(std::move(animation));
     }

td/telegram/PhotoSizeSource.cpp

@@ -218,7 +218,7 @@ static bool operator==(const PhotoSizeSource::StickerSetThumbnailVersion &lhs,
 }
 
 bool operator==(const PhotoSizeSource &lhs, const PhotoSizeSource &rhs) {
-  return lhs.variant == rhs.variant;
+  return lhs.variant_ == rhs.variant_;
 }
 
 bool operator!=(const PhotoSizeSource &lhs, const PhotoSizeSource &rhs) {

td/telegram/PhotoSizeSource.h

@@ -8,15 +8,12 @@
 
 #include "td/telegram/DialogId.h"
 #include "td/telegram/files/FileType.h"
-
 #include "td/telegram/telegram_api.h"
 
 #include "td/utils/common.h"
 #include "td/utils/StringBuilder.h"
 #include "td/utils/Variant.h"
 
-#include <cstddef>
-
 namespace td {
 
 struct PhotoSizeSource {
@@ -141,37 +138,47 @@ struct PhotoSizeSource {
   };
 
   PhotoSizeSource() = default;
-  PhotoSizeSource(FileType file_type, int32 thumbnail_type) : variant(Thumbnail(file_type, thumbnail_type)) {
+
+  static PhotoSizeSource thumbnail(FileType file_type, int32 thumbnail_type) {
+    return PhotoSizeSource(Thumbnail(file_type, thumbnail_type));
   }
-  PhotoSizeSource(DialogId dialog_id, int64 dialog_access_hash, bool is_big) {
+
+  static PhotoSizeSource dialog_photo(DialogId dialog_id, int64 dialog_access_hash, bool is_big) {
     if (is_big) {
-      variant = DialogPhotoBig(dialog_id, dialog_access_hash);
+      return PhotoSizeSource(DialogPhotoBig(dialog_id, dialog_access_hash));
     } else {
-      variant = DialogPhotoSmall(dialog_id, dialog_access_hash);
+      return PhotoSizeSource(DialogPhotoSmall(dialog_id, dialog_access_hash));
     }
   }
-  PhotoSizeSource(int64 sticker_set_id, int64 sticker_set_access_hash)
-      : variant(StickerSetThumbnail(sticker_set_id, sticker_set_access_hash)) {
+
+  static PhotoSizeSource sticker_set_thumbnail(int64 sticker_set_id, int64 sticker_set_access_hash) {
+    return PhotoSizeSource(StickerSetThumbnail(sticker_set_id, sticker_set_access_hash));
   }
-  PhotoSizeSource(std::nullptr_t, int64 volume_id, int32 local_id, int64 secret)
-      : variant(FullLegacy(volume_id, local_id, secret)) {
+
+  static PhotoSizeSource full_legacy(int64 volume_id, int32 local_id, int64 secret) {
+    return PhotoSizeSource(FullLegacy(volume_id, local_id, secret));
   }
-  PhotoSizeSource(DialogId dialog_id, int64 dialog_access_hash, bool is_big, int64 volume_id, int32 local_id) {
+
+  static PhotoSizeSource dialog_photo_legacy(DialogId dialog_id, int64 dialog_access_hash, bool is_big, int64 volume_id,
+                                             int32 local_id) {
     if (is_big) {
-      variant = DialogPhotoBigLegacy(dialog_id, dialog_access_hash, volume_id, local_id);
+      return PhotoSizeSource(DialogPhotoBigLegacy(dialog_id, dialog_access_hash, volume_id, local_id));
     } else {
-      variant = DialogPhotoSmallLegacy(dialog_id, dialog_access_hash, volume_id, local_id);
+      return PhotoSizeSource(DialogPhotoSmallLegacy(dialog_id, dialog_access_hash, volume_id, local_id));
     }
   }
-  PhotoSizeSource(int64 sticker_set_id, int64 sticker_set_access_hash, int64 volume_id, int32 local_id)
-      : variant(StickerSetThumbnailLegacy(sticker_set_id, sticker_set_access_hash, volume_id, local_id)) {
+
+  static PhotoSizeSource sticker_set_thumbnail_legacy(int64 sticker_set_id, int64 sticker_set_access_hash,
+                                                      int64 volume_id, int32 local_id) {
+    return PhotoSizeSource(StickerSetThumbnailLegacy(sticker_set_id, sticker_set_access_hash, volume_id, local_id));
   }
-  PhotoSizeSource(int64 sticker_set_id, int64 sticker_set_access_hash, int32 version)
-      : variant(StickerSetThumbnailVersion(sticker_set_id, sticker_set_access_hash, version)) {
+
+  static PhotoSizeSource sticker_set_thumbnail(int64 sticker_set_id, int64 sticker_set_access_hash, int32 version) {
+    return PhotoSizeSource(StickerSetThumbnailVersion(sticker_set_id, sticker_set_access_hash, version));
   }
 
   Type get_type() const {
-    auto offset = variant.get_offset();
+    auto offset = variant_.get_offset();
     CHECK(offset >= 0);
     return static_cast<Type>(offset);
   }
@@ -179,58 +186,58 @@ struct PhotoSizeSource {
   FileType get_file_type() const;
 
   Thumbnail &thumbnail() {
-    return variant.get<Thumbnail>();
+    return variant_.get<Thumbnail>();
   }
 
   const Legacy &legacy() const {
-    return variant.get<Legacy>();
+    return variant_.get<Legacy>();
   }
   const Thumbnail &thumbnail() const {
-    return variant.get<Thumbnail>();
+    return variant_.get<Thumbnail>();
   }
   const DialogPhoto &dialog_photo() const {
-    switch (variant.get_offset()) {
+    switch (variant_.get_offset()) {
       case 2:
-        return variant.get<DialogPhotoSmall>();
+        return variant_.get<DialogPhotoSmall>();
       case 3:
-        return variant.get<DialogPhotoBig>();
+        return variant_.get<DialogPhotoBig>();
       case 6:
-        return variant.get<DialogPhotoSmallLegacy>();
+        return variant_.get<DialogPhotoSmallLegacy>();
       case 7:
-        return variant.get<DialogPhotoBigLegacy>();
+        return variant_.get<DialogPhotoBigLegacy>();
       default:
         UNREACHABLE();
-        return variant.get<DialogPhotoSmall>();
+        return variant_.get<DialogPhotoSmall>();
     }
   }
   const StickerSetThumbnail &sticker_set_thumbnail() const {
-    switch (variant.get_offset()) {
+    switch (variant_.get_offset()) {
       case 4:
-        return variant.get<StickerSetThumbnail>();
+        return variant_.get<StickerSetThumbnail>();
       case 8:
-        return variant.get<StickerSetThumbnailLegacy>();
+        return variant_.get<StickerSetThumbnailLegacy>();
       case 9:
-        return variant.get<StickerSetThumbnailVersion>();
+        return variant_.get<StickerSetThumbnailVersion>();
       default:
         UNREACHABLE();
-        return variant.get<StickerSetThumbnail>();
+        return variant_.get<StickerSetThumbnail>();
     }
   }
   const FullLegacy &full_legacy() const {
-    return variant.get<FullLegacy>();
+    return variant_.get<FullLegacy>();
   }
   const DialogPhotoLegacy &dialog_photo_legacy() const {
-    if (variant.get_offset() == 6) {
-      return variant.get<DialogPhotoSmallLegacy>();
+    if (variant_.get_offset() == 6) {
+      return variant_.get<DialogPhotoSmallLegacy>();
     } else {
-      return variant.get<DialogPhotoBigLegacy>();
+      return variant_.get<DialogPhotoBigLegacy>();
     }
   }
   const StickerSetThumbnailLegacy &sticker_set_thumbnail_legacy() const {
-    return variant.get<StickerSetThumbnailLegacy>();
+    return variant_.get<StickerSetThumbnailLegacy>();
   }
   const StickerSetThumbnailVersion &sticker_set_thumbnail_version() const {
-    return variant.get<StickerSetThumbnailVersion>();
+    return variant_.get<StickerSetThumbnailVersion>();
   }
 
   // returns unique representation of the source
@@ -249,7 +256,11 @@ struct PhotoSizeSource {
  private:
   Variant<Legacy, Thumbnail, DialogPhotoSmall, DialogPhotoBig, StickerSetThumbnail, FullLegacy, DialogPhotoSmallLegacy,
           DialogPhotoBigLegacy, StickerSetThumbnailLegacy, StickerSetThumbnailVersion>
-      variant;
+      variant_;
+
+  template <class T>
+  explicit PhotoSizeSource(const T &variant) : variant_(variant) {
+  }
 };
 
 bool operator==(const PhotoSizeSource &lhs, const PhotoSizeSource &rhs);

td/telegram/PhotoSizeSource.hpp

@@ -180,12 +180,12 @@ void parse(PhotoSizeSource::StickerSetThumbnailVersion &source, ParserT &parser)
 
 template <class StorerT>
 void PhotoSizeSource::store(StorerT &storer) const {
-  td::store(variant, storer);
+  td::store(variant_, storer);
 }
 
 template <class ParserT>
 void PhotoSizeSource::parse(ParserT &parser) {
-  td::parse(variant, parser);
+  td::parse(variant_, parser);
 }
 
 }  // namespace td

td/telegram/StickersManager.cpp

@@ -2164,9 +2164,9 @@ std::pair<int64, FileId> StickersManager::on_get_sticker_document(
   string minithumbnail;
   auto thumbnail_format = has_webp_thumbnail(document->thumbs_) ? PhotoFormat::Webp : PhotoFormat::Jpeg;
   for (auto &thumb : document->thumbs_) {
-    auto photo_size = get_photo_size(td_->file_manager_.get(), {FileType::Thumbnail, 0}, document_id,
-                                     document->access_hash_, document->file_reference_.as_slice().str(), dc_id,
-                                     DialogId(), std::move(thumb), thumbnail_format);
+    auto photo_size = get_photo_size(td_->file_manager_.get(), PhotoSizeSource::thumbnail(FileType::Thumbnail, 0),
+                                     document_id, document->access_hash_, document->file_reference_.as_slice().str(),
+                                     dc_id, DialogId(), std::move(thumb), thumbnail_format);
     if (photo_size.get_offset() == 0) {
       if (!thumbnail.file_id.is_valid()) {
         thumbnail = std::move(photo_size.get<0>());
@@ -2698,9 +2698,11 @@ StickerSetId StickersManager::on_get_sticker_set(tl_object_ptr<telegram_api::sti
   PhotoSize thumbnail;
   string minithumbnail;
   for (auto &thumb : set->thumbs_) {
-    auto photo_size = get_photo_size(td_->file_manager_.get(), {set_id.get(), s->access_hash, set->thumb_version_}, 0,
-                                     0, "", DcId::create(set->thumb_dc_id_), DialogId(), std::move(thumb),
-                                     is_animated ? PhotoFormat::Tgs : PhotoFormat::Webp);
+    auto photo_size =
+        get_photo_size(td_->file_manager_.get(),
+                       PhotoSizeSource::sticker_set_thumbnail(set_id.get(), s->access_hash, set->thumb_version_), 0, 0,
+                       "", DcId::create(set->thumb_dc_id_), DialogId(), std::move(thumb),
+                       is_animated ? PhotoFormat::Tgs : PhotoFormat::Webp);
     if (photo_size.get_offset() == 0) {
       if (!thumbnail.file_id.is_valid()) {
         thumbnail = std::move(photo_size.get<0>());

td/telegram/files/FileLocation.h

@@ -325,11 +325,11 @@ class FullRemoteFileLocation {
         return photo().source_;
       case LocationType::Common:
       case LocationType::Web:
-        return PhotoSizeSource(nullptr, 0, 0, 0);
+        return PhotoSizeSource::full_legacy(0, 0, 0);
       case LocationType::None:
       default:
         UNREACHABLE();
-        return PhotoSizeSource(nullptr, 0, 0, 0);
+        return PhotoSizeSource::full_legacy(0, 0, 0);
     }
   }
 

td/telegram/files/FileLocation.hpp

@@ -66,7 +66,7 @@ void PhotoRemoteFileLocation::parse(ParserT &parser) {
       int64 secret;
       parse(secret, parser);
       parse(local_id, parser);
-      source = PhotoSizeSource(nullptr, volume_id, local_id, secret);
+      source = PhotoSizeSource::full_legacy(volume_id, local_id, secret);
     }
 
     if (parser.get_error() != nullptr) {
@@ -75,7 +75,7 @@ void PhotoRemoteFileLocation::parse(ParserT &parser) {
 
     switch (source.get_type()) {
       case PhotoSizeSource::Type::Legacy:
-        source_ = PhotoSizeSource(nullptr, volume_id, local_id, source.legacy().secret);
+        source_ = PhotoSizeSource::full_legacy(volume_id, local_id, source.legacy().secret);
         break;
       case PhotoSizeSource::Type::FullLegacy:
       case PhotoSizeSource::Type::Thumbnail:
@@ -85,13 +85,14 @@ void PhotoRemoteFileLocation::parse(ParserT &parser) {
       case PhotoSizeSource::Type::DialogPhotoBig: {
         auto &dialog_photo = source.dialog_photo();
         bool is_big = source.get_type() == PhotoSizeSource::Type::DialogPhotoBig;
-        source_ = PhotoSizeSource(dialog_photo.dialog_id, dialog_photo.dialog_access_hash, is_big, volume_id, local_id);
+        source_ = PhotoSizeSource::dialog_photo_legacy(dialog_photo.dialog_id, dialog_photo.dialog_access_hash, is_big,
+                                                       volume_id, local_id);
         break;
       }
       case PhotoSizeSource::Type::StickerSetThumbnail: {
         auto &sticker_set_thumbnail = source.sticker_set_thumbnail();
-        source_ = PhotoSizeSource(sticker_set_thumbnail.sticker_set_id, sticker_set_thumbnail.sticker_set_access_hash,
-                                  volume_id, local_id);
+        source_ = PhotoSizeSource::sticker_set_thumbnail_legacy(
+            sticker_set_thumbnail.sticker_set_id, sticker_set_thumbnail.sticker_set_access_hash, volume_id, local_id);
         break;
       }
       default: