Protocol Buffers - Google's data interchange format (grpc依赖)
https://developers.google.com/protocol-buffers/
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79 lines
2.3 KiB
79 lines
2.3 KiB
1 year ago
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// 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 <string>
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#include <vector>
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#include "absl/log/absl_log.h"
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#include "upb/base/status.hpp"
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#include "upb/base/string_view.h"
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#include "upb_generator/common.h"
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#include "upb_generator/file_layout.h"
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#include "upb_generator/plugin.h"
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#include "upb_generator/protoc-gen-upb_minitable.h"
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// Must be last.
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#include "upb/port/def.inc"
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namespace upb {
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namespace generator {
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std::string SourceFilename(upb::FileDefPtr file) {
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return StripExtension(file.name()) + ".upb_minitable.c";
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}
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absl::string_view ToStringView(upb_StringView str) {
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return absl::string_view(str.data, str.size);
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}
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void GenerateFile(const DefPoolPair& pools, upb::FileDefPtr file,
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Plugin* plugin) {
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Output h_output;
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WriteMiniTableHeader(pools, file, h_output);
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plugin->AddOutputFile(MiniTableHeaderFilename(file), h_output.output());
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Output c_output;
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WriteMiniTableSource(pools, file, c_output);
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plugin->AddOutputFile(SourceFilename(file), c_output.output());
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}
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bool ParseOptions(Plugin* plugin) {
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const auto param = ParseGeneratorParameter(plugin->parameter());
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if (!param.empty()) {
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plugin->SetError(absl::Substitute("Unknown parameter: $0", param[0].first));
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return false;
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}
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return true;
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}
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int PluginMain(int argc, char** argv) {
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DefPoolPair pools;
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Plugin plugin;
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if (!ParseOptions(&plugin)) return 0;
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plugin.GenerateFilesRaw(
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[&](const UPB_DESC(FileDescriptorProto) * file_proto, bool generate) {
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upb::Status status;
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upb::FileDefPtr file = pools.AddFile(file_proto, &status);
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if (!file) {
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absl::string_view name =
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ToStringView(UPB_DESC(FileDescriptorProto_name)(file_proto));
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ABSL_LOG(FATAL) << "Couldn't add file " << name
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<< " to DefPool: " << status.error_message();
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}
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if (generate) GenerateFile(pools, file, &plugin);
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});
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return 0;
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}
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} // namespace generator
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} // namespace upb
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int main(int argc, char** argv) {
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return upb::generator::PluginMain(argc, argv);
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}
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