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| 1 | +// Protocol Buffers - Google's data interchange format |
| 2 | +// Copyright 2024 Google LLC. All rights reserved. |
| 3 | +// |
| 4 | +// Use of this source code is governed by a BSD-style |
| 5 | +// license that can be found in the LICENSE file or at |
| 6 | +// https://developers.google.com/open-source/licenses/bsd |
| 7 | + |
| 8 | +#include "upb/mini_table/extension.h" |
| 9 | + |
| 10 | +#include "absl/log/absl_check.h" |
| 11 | +#include "absl/status/status.h" |
| 12 | +#include "hpb/backend/upb/extension.h" |
| 13 | +#include "hpb/internal/message_lock.h" |
| 14 | +#include "hpb/status.h" |
| 15 | +#include "upb/mem/arena.h" |
| 16 | +#include "upb/message/accessors.h" |
| 17 | +#include "upb/message/message.h" |
| 18 | + |
| 19 | +namespace hpb::internal { |
| 20 | + |
| 21 | +absl::Status MoveExtension(upb_Message* message, upb_Arena* message_arena, |
| 22 | + const upb_MiniTableExtension* ext, |
| 23 | + upb_Message* extension, upb_Arena* extension_arena) { |
| 24 | + if (message_arena != extension_arena && |
| 25 | + // Try fuse, if fusing is not allowed or fails, create copy of extension. |
| 26 | + !upb_Arena_Fuse(message_arena, extension_arena)) { |
| 27 | + extension = DeepClone(extension, upb_MiniTableExtension_GetSubMessage(ext), |
| 28 | + message_arena); |
| 29 | + } |
| 30 | + return upb_Message_SetExtension(message, ext, &extension, message_arena) |
| 31 | + ? absl::OkStatus() |
| 32 | + : MessageAllocationError(); |
| 33 | +} |
| 34 | + |
| 35 | +absl::Status SetExtension(upb_Message* message, upb_Arena* message_arena, |
| 36 | + const upb_MiniTableExtension* ext, |
| 37 | + const upb_Message* extension) { |
| 38 | + // Clone extension into target message arena. |
| 39 | + extension = DeepClone(extension, upb_MiniTableExtension_GetSubMessage(ext), |
| 40 | + message_arena); |
| 41 | + return upb_Message_SetExtension(message, ext, &extension, message_arena) |
| 42 | + ? absl::OkStatus() |
| 43 | + : MessageAllocationError(); |
| 44 | +} |
| 45 | + |
| 46 | +void SetAliasExtension(upb_Message* message, upb_Arena* message_arena, |
| 47 | + const upb_MiniTableExtension* ext, |
| 48 | + upb_Message* extension, upb_Arena* extension_arena) { |
| 49 | + ABSL_CHECK(upb_Arena_IsFused(message_arena, extension_arena)); |
| 50 | + upb_Message_SetExtension(message, ext, &extension, message_arena); |
| 51 | +} |
| 52 | +} // namespace hpb::internal |
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