Nano protobufs.

Like micro protobufs except:

- No setter/getter/hazzer functions.
- Has state is not available. Outputs all fields != their default.
- CodedInputStream can only take byte[] (not InputStream).
- Repeated fields are in arrays, not ArrayList or Vector.
- Unset messages/groups are null, not "defaultInstance()".
- Required fields are always serialized.

To use:

- Link libprotobuf-java-2.3.0-nano runtime.
- Use LOCAL_PROTOC_OPTIMIZE_TYPE := nano

Change-Id: I7429015b3c5f7f38b7be01eb2d4927f7a9999c80

1 files changed, 72 insertions, 0 deletions

diff --git a/src/google/protobuf/compiler/javanano/javanano_generator.h b/src/google/protobuf/compiler/javanano/javanano_generator.h
new file mode 100644
index 00000000..0c1e3a41
--- /dev/null
+++ b/src/google/protobuf/compiler/javanano/javanano_generator.h
@@ -0,0 +1,72 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+// http://code.google.com/p/protobuf/
+//
+// 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)
+//  Based on original Protocol Buffers design by
+//  Sanjay Ghemawat, Jeff Dean, and others.
+//
+// Generates Java nano code for a given .proto file.
+
+#ifndef GOOGLE_PROTOBUF_COMPILER_JAVA_NANO_GENERATOR_H__
+#define GOOGLE_PROTOBUF_COMPILER_JAVA_NANO_GENERATOR_H__
+
+#include <string>
+#include <google/protobuf/compiler/code_generator.h>
+
+namespace google {
+namespace protobuf {
+namespace compiler {
+namespace javanano {
+
+// CodeGenerator implementation which generates Java nano code.  If you create your
+// own protocol compiler binary and you want it to support Java output for the
+// nano runtime, you can do so by registering an instance of this CodeGenerator with
+// the CommandLineInterface in your main() function.
+class LIBPROTOC_EXPORT JavaNanoGenerator : public CodeGenerator {
+ public:
+  JavaNanoGenerator();
+  ~JavaNanoGenerator();
+
+  // implements CodeGenerator ----------------------------------------
+  bool Generate(const FileDescriptor* file,
+                const string& parameter,
+                OutputDirectory* output_directory,
+                string* error) const;
+
+ private:
+  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(JavaNanoGenerator);
+};
+
+}  // namespace javanano
+}  // namespace compiler
+}  // namespace protobuf
+
+}  // namespace google
+#endif  // GOOGLE_PROTOBUF_COMPILER_JAVA_NANO_GENERATOR_H__