Protocol Buffers - Google's data interchange format (grpc依赖)
https://developers.google.com/protocol-buffers/
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73 lines
2.3 KiB
73 lines
2.3 KiB
// Protocol Buffers - Google's data interchange format |
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// Copyright 2023 Google LLC. All rights reserved. |
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// |
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// Use of this source code is governed by a BSD-style |
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// license that can be found in the LICENSE file or at |
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// https://developers.google.com/open-source/licenses/bsd |
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#include "google/protobuf/compiler/hpb/gen_extensions.h" |
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#include <cassert> |
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#include <string> |
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#include <vector> |
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#include "absl/strings/str_cat.h" |
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#include "google/protobuf/compiler/hpb/names.h" |
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#include "google/protobuf/compiler/hpb/output.h" |
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#include "google/protobuf/descriptor.h" |
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namespace google::protobuf::hpb_generator { |
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namespace protobuf = ::proto2; |
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std::string ExtensionIdentifierBase(const protobuf::FieldDescriptor* ext) { |
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assert(ext->is_extension()); |
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std::string ext_scope; |
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if (ext->extension_scope()) { |
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return MessageName(ext->extension_scope()); |
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} else { |
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return ToCIdent(ext->file()->package()); |
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} |
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} |
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std::string ContainingTypeName(const protobuf::FieldDescriptor* ext) { |
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return ext->containing_type()->file() != ext->file() |
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? QualifiedClassName(ext->containing_type()) |
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: ClassName(ext->containing_type()); |
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} |
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void WriteExtensionIdentifierHeader(const protobuf::FieldDescriptor* ext, |
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Output& output) { |
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std::string mini_table_name = |
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absl::StrCat(ExtensionIdentifierBase(ext), "_", ext->name(), "_ext"); |
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if (ext->extension_scope()) { |
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output( |
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R"cc( |
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static constexpr ::hpb::internal::ExtensionIdentifier<$0, $3> $2{$4, |
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&$1}; |
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)cc", |
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ContainingTypeName(ext), mini_table_name, ext->name(), |
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CppTypeParameterName(ext), ext->number()); |
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} else { |
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output( |
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R"cc( |
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inline constexpr ::hpb::internal::ExtensionIdentifier<$0, $3> $2{$4, |
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&$1}; |
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)cc", |
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ContainingTypeName(ext), mini_table_name, ext->name(), |
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CppTypeParameterName(ext), ext->number()); |
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} |
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} |
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void WriteExtensionIdentifiersHeader( |
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const std::vector<const protobuf::FieldDescriptor*>& extensions, |
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Output& output) { |
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for (const auto* ext : extensions) { |
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if (!ext->extension_scope()) { |
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WriteExtensionIdentifierHeader(ext, output); |
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} |
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} |
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} |
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} // namespace protobuf |
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} // namespace google::hpb_generator
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