Protocol Buffer runtime library and 'protoc' plugin

lib/protobuf/plugin/CodeGenerator.dart

+// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+interface ProtobufContainer {
+  String get fqname();
+  String get classname();
+  GoogleProtobuf_FileOptions_OptimizeMode get optimizeFor();
+}
+
+class CodeGenerator implements ProtobufContainer {
+  CodeGenerator(ProtocGenDartConfig this._config, InputStream this._streamIn,
+      OutputStream this._streamOut, OutputStream this._streamErr);
+
+  void generate() {
+    PbInputStreamReader reader = new PbInputStreamReader(_streamIn);
+    Future<List<int>> futureBytes = reader.readBytes();
+    futureBytes.then(_(List<int> bytes) {
+      _streamIn.close();
+      GoogleProtobufCompiler_CodeGeneratorRequest request =
+          GoogleProtobufCompiler_CodeGeneratorRequest.parseFromBuffer(bytes);
+
+      GoogleProtobufCompiler_CodeGeneratorResponse_Builder responseBuilder =
+          new GoogleProtobufCompiler_CodeGeneratorResponse_Builder();
+
+      GenerationContext ctx =
+          new GenerationContext(new OutputStreamWriter(_streamErr));
+
+      List<FileGenerator> generators = new List<FileGenerator>();
+      for (GoogleProtobuf_FileDescriptorProto file in request.protoFile) {
+        FileGenerator generator = new FileGenerator(file, this, ctx);
+        if (request.fileToGenerate.indexOf(file.name) >= 0) {
+          generators.add(generator);
+        }
+      }
+
+      for (FileGenerator filegen in generators) {
+        GoogleProtobufCompiler_CodeGeneratorResponse_File file = filegen.generate();
+        responseBuilder.file.add(file);
+      }
+
+      List<int> buffer = responseBuilder.build().writeToBuffer();
+      _streamOut.write(buffer);
+    });
+  }
+
+  ProtocGenDartConfig _config;
+  InputStream _streamIn;
+  OutputStream _streamOut;
+  OutputStream _streamErr;
+  GoogleProtobuf_FileOptions_OptimizeMode get optimizeFor() => null;
+  String get fqname() => "";
+  String get classname() => null;
+}