Protocol Buffer runtime library and 'protoc' plugin

lib/protobuf/runtime/FieldInfo.dart

+// Copyright (c) 2012, 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.
+
+/**
+ * An object representing a protobuf message field.
+ */
+class FieldInfo {
+  final String name;
+  final int tagNumber;
+  final int type;
+  final MakeDefaultFunc makeDefault;
+  final CreateBuilderFunc subBuilder;
+  final ValueOfFunc valueOf;
+
+  FieldInfo(String this.name, int this.tagNumber, int type,
+      [MakeDefaultFunc makeDefault, CreateBuilderFunc this.subBuilder = null,
+      ValueOfFunc this.valueOf = null])
+      : this.type = type, this.makeDefault = 
+        makeDefault == null ? Builder._defaultForType(type) : makeDefault;
+
+  String toString() => name;
+}