Media CAS Proxy SDK release: 16.5.0

ubuntu/google/protobuf/compiler/plugin.cc

@@ -0,0 +1,198 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+// https://developers.google.com/protocol-buffers/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Author: kenton@google.com (Kenton Varda)
+
+#include <google/protobuf/compiler/plugin.h>
+
+#include <iostream>
+#include <set>
+
+#ifdef _WIN32
+#include <fcntl.h>
+#else
+#include <unistd.h>
+#endif
+
+#include <google/protobuf/stubs/logging.h>
+#include <google/protobuf/stubs/common.h>
+#include <google/protobuf/compiler/plugin.pb.h>
+#include <google/protobuf/compiler/code_generator.h>
+#include <google/protobuf/io/zero_copy_stream_impl.h>
+#include <google/protobuf/descriptor.h>
+#include <google/protobuf/io/io_win32.h>
+
+
+namespace google {
+namespace protobuf {
+namespace compiler {
+
+#if defined(_WIN32)
+// DO NOT include <io.h>, instead create functions in io_win32.{h,cc} and import
+// them like we do below.
+using google::protobuf::io::win32::setmode;
+#endif
+
+class GeneratorResponseContext : public GeneratorContext {
+ public:
+  GeneratorResponseContext(
+      const Version& compiler_version, CodeGeneratorResponse* response,
+      const std::vector<const FileDescriptor*>& parsed_files)
+      : compiler_version_(compiler_version),
+        response_(response),
+        parsed_files_(parsed_files) {}
+  virtual ~GeneratorResponseContext() {}
+
+  // implements GeneratorContext --------------------------------------
+
+  virtual io::ZeroCopyOutputStream* Open(const std::string& filename) {
+    CodeGeneratorResponse::File* file = response_->add_file();
+    file->set_name(filename);
+    return new io::StringOutputStream(file->mutable_content());
+  }
+
+  virtual io::ZeroCopyOutputStream* OpenForInsert(
+      const std::string& filename, const std::string& insertion_point) {
+    CodeGeneratorResponse::File* file = response_->add_file();
+    file->set_name(filename);
+    file->set_insertion_point(insertion_point);
+    return new io::StringOutputStream(file->mutable_content());
+  }
+
+  virtual io::ZeroCopyOutputStream* OpenForInsertWithGeneratedCodeInfo(
+      const std::string& filename, const std::string& insertion_point,
+      const google::protobuf::GeneratedCodeInfo& info) {
+    CodeGeneratorResponse::File* file = response_->add_file();
+    file->set_name(filename);
+    file->set_insertion_point(insertion_point);
+    *file->mutable_generated_code_info() = info;
+    return new io::StringOutputStream(file->mutable_content());
+  }
+
+  void ListParsedFiles(std::vector<const FileDescriptor*>* output) {
+    *output = parsed_files_;
+  }
+
+  void GetCompilerVersion(Version* version) const {
+    *version = compiler_version_;
+  }
+
+ private:
+  Version compiler_version_;
+  CodeGeneratorResponse* response_;
+  const std::vector<const FileDescriptor*>& parsed_files_;
+};
+
+bool GenerateCode(const CodeGeneratorRequest& request,
+                  const CodeGenerator& generator,
+                  CodeGeneratorResponse* response, std::string* error_msg) {
+  DescriptorPool pool;
+  for (int i = 0; i < request.proto_file_size(); i++) {
+    const FileDescriptor* file = pool.BuildFile(request.proto_file(i));
+    if (file == NULL) {
+      // BuildFile() already wrote an error message.
+      return false;
+    }
+  }
+
+  std::vector<const FileDescriptor*> parsed_files;
+  for (int i = 0; i < request.file_to_generate_size(); i++) {
+    parsed_files.push_back(pool.FindFileByName(request.file_to_generate(i)));
+    if (parsed_files.back() == NULL) {
+      *error_msg =
+          "protoc asked plugin to generate a file but "
+          "did not provide a descriptor for the file: " +
+          request.file_to_generate(i);
+      return false;
+    }
+  }
+
+  GeneratorResponseContext context(request.compiler_version(), response,
+                                   parsed_files);
+
+
+  std::string error;
+  bool succeeded = generator.GenerateAll(parsed_files, request.parameter(),
+                                         &context, &error);
+
+  response->set_supported_features(generator.GetSupportedFeatures());
+
+  if (!succeeded && error.empty()) {
+    error =
+        "Code generator returned false but provided no error "
+        "description.";
+  }
+  if (!error.empty()) {
+    response->set_error(error);
+  }
+
+  return true;
+}
+
+int PluginMain(int argc, char* argv[], const CodeGenerator* generator) {
+
+  if (argc > 1) {
+    std::cerr << argv[0] << ": Unknown option: " << argv[1] << std::endl;
+    return 1;
+  }
+
+#ifdef _WIN32
+  setmode(STDIN_FILENO, _O_BINARY);
+  setmode(STDOUT_FILENO, _O_BINARY);
+#endif
+
+  CodeGeneratorRequest request;
+  if (!request.ParseFromFileDescriptor(STDIN_FILENO)) {
+    std::cerr << argv[0] << ": protoc sent unparseable request to plugin."
+              << std::endl;
+    return 1;
+  }
+
+  std::string error_msg;
+  CodeGeneratorResponse response;
+
+  if (GenerateCode(request, *generator, &response, &error_msg)) {
+    if (!response.SerializeToFileDescriptor(STDOUT_FILENO)) {
+      std::cerr << argv[0] << ": Error writing to stdout." << std::endl;
+      return 1;
+    }
+  } else {
+    if (!error_msg.empty()) {
+      std::cerr << argv[0] << ": " << error_msg << std::endl;
+    }
+    return 1;
+  }
+
+  return 0;
+}
+
+}  // namespace compiler
+}  // namespace protobuf
+}  // namespace google