Detect source files generated by the Protocol Buffer compiler

README.md

@@ -58,13 +58,13 @@ See [Linguist::BlobHelper#vendored?](https://github.com/github/linguist/blob/mas
 
 #### Generated file detection
 
-Not all plain text files are true source files. Generated files like minified js and compiled CoffeeScript can be detected and excluded from language stats. As an extra bonus, these files are suppressed in Diffs.
+Not all plain text files are true source files. Generated files like minified js and compiled CoffeeScript can be detected and excluded from language stats. As an extra bonus, these files are suppressed in diffs.
 
 ```ruby
 Linguist::FileBlob.new("underscore.min.js").generated? # => true
 ```
 
-See [Linguist::BlobHelper#generated?](https://github.com/github/linguist/blob/master/lib/linguist/blob_helper.rb).
+See [Linguist::Generated#generated?](https://github.com/github/linguist/blob/master/lib/linguist/generated.rb).
 
 ## Installation
 

lib/linguist/generated.rb

@@ -56,7 +56,8 @@ module Linguist
         compiled_coffeescript? ||
         xcode_project_file? ||
         generated_net_docfile? ||
-        generated_parser?
+        generated_parser? ||
+        generated_protocol_buffer?
     end
 
     # Internal: Is the blob an XCode project file?
@@ -158,5 +159,16 @@ module Linguist
 
       false
     end
+
+    # Internal: Is the blob a C++, Java or Python source file generated by the
+    # Protocol Buffer compiler?
+    #
+    # Returns true of false.
+    def generated_protocol_buffer?
+      return false unless ['.py', '.java', '.h', '.cc', '.cpp'].include?(extname)
+      return false unless lines.count > 1
+
+      return lines[0].include?("Generated by the protocol buffer compiler.  DO NOT EDIT!")
+    end
   end
 end

samples/C++/protocol-buffer.pb.cc

@@ -0,0 +1,327 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: protocol-buffer.proto
+
+#define INTERNAL_SUPPRESS_PROTOBUF_FIELD_DEPRECATION
+#include "protocol-buffer.pb.h"
+
+#include <algorithm>
+
+#include <google/protobuf/stubs/common.h>
+#include <google/protobuf/stubs/once.h>
+#include <google/protobuf/io/coded_stream.h>
+#include <google/protobuf/wire_format_lite_inl.h>
+#include <google/protobuf/descriptor.h>
+#include <google/protobuf/generated_message_reflection.h>
+#include <google/protobuf/reflection_ops.h>
+#include <google/protobuf/wire_format.h>
+// @@protoc_insertion_point(includes)
+
+namespace persons {
+
+namespace {
+
+const ::google::protobuf::Descriptor* Person_descriptor_ = NULL;
+const ::google::protobuf::internal::GeneratedMessageReflection*
+  Person_reflection_ = NULL;
+
+}  // namespace
+
+
+void protobuf_AssignDesc_protocol_2dbuffer_2eproto() {
+  protobuf_AddDesc_protocol_2dbuffer_2eproto();
+  const ::google::protobuf::FileDescriptor* file =
+    ::google::protobuf::DescriptorPool::generated_pool()->FindFileByName(
+      "protocol-buffer.proto");
+  GOOGLE_CHECK(file != NULL);
+  Person_descriptor_ = file->message_type(0);
+  static const int Person_offsets_[1] = {
+    GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET(Person, name_),
+  };
+  Person_reflection_ =
+    new ::google::protobuf::internal::GeneratedMessageReflection(
+      Person_descriptor_,
+      Person::default_instance_,
+      Person_offsets_,
+      GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET(Person, _has_bits_[0]),
+      GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET(Person, _unknown_fields_),
+      -1,
+      ::google::protobuf::DescriptorPool::generated_pool(),
+      ::google::protobuf::MessageFactory::generated_factory(),
+      sizeof(Person));
+}
+
+namespace {
+
+GOOGLE_PROTOBUF_DECLARE_ONCE(protobuf_AssignDescriptors_once_);
+inline void protobuf_AssignDescriptorsOnce() {
+  ::google::protobuf::GoogleOnceInit(&protobuf_AssignDescriptors_once_,
+                 &protobuf_AssignDesc_protocol_2dbuffer_2eproto);
+}
+
+void protobuf_RegisterTypes(const ::std::string&) {
+  protobuf_AssignDescriptorsOnce();
+  ::google::protobuf::MessageFactory::InternalRegisterGeneratedMessage(
+    Person_descriptor_, &Person::default_instance());
+}
+
+}  // namespace
+
+void protobuf_ShutdownFile_protocol_2dbuffer_2eproto() {
+  delete Person::default_instance_;
+  delete Person_reflection_;
+}
+
+void protobuf_AddDesc_protocol_2dbuffer_2eproto() {
+  static bool already_here = false;
+  if (already_here) return;
+  already_here = true;
+  GOOGLE_PROTOBUF_VERIFY_VERSION;
+
+  ::google::protobuf::DescriptorPool::InternalAddGeneratedFile(
+    "\n\025protocol-buffer.proto\022\007persons\"\026\n\006Pers"
+    "on\022\014\n\004name\030\001 \002(\t", 56);
+  ::google::protobuf::MessageFactory::InternalRegisterGeneratedFile(
+    "protocol-buffer.proto", &protobuf_RegisterTypes);
+  Person::default_instance_ = new Person();
+  Person::default_instance_->InitAsDefaultInstance();
+  ::google::protobuf::internal::OnShutdown(&protobuf_ShutdownFile_protocol_2dbuffer_2eproto);
+}
+
+// Force AddDescriptors() to be called at static initialization time.
+struct StaticDescriptorInitializer_protocol_2dbuffer_2eproto {
+  StaticDescriptorInitializer_protocol_2dbuffer_2eproto() {
+    protobuf_AddDesc_protocol_2dbuffer_2eproto();
+  }
+} static_descriptor_initializer_protocol_2dbuffer_2eproto_;
+
+// ===================================================================
+
+#ifndef _MSC_VER
+const int Person::kNameFieldNumber;
+#endif  // !_MSC_VER
+
+Person::Person()
+  : ::google::protobuf::Message() {
+  SharedCtor();
+}
+
+void Person::InitAsDefaultInstance() {
+}
+
+Person::Person(const Person& from)
+  : ::google::protobuf::Message() {
+  SharedCtor();
+  MergeFrom(from);
+}
+
+void Person::SharedCtor() {
+  _cached_size_ = 0;
+  name_ = const_cast< ::std::string*>(&::google::protobuf::internal::kEmptyString);
+  ::memset(_has_bits_, 0, sizeof(_has_bits_));
+}
+
+Person::~Person() {
+  SharedDtor();
+}
+
+void Person::SharedDtor() {
+  if (name_ != &::google::protobuf::internal::kEmptyString) {
+    delete name_;
+  }
+  if (this != default_instance_) {
+  }
+}
+
+void Person::SetCachedSize(int size) const {
+  GOOGLE_SAFE_CONCURRENT_WRITES_BEGIN();
+  _cached_size_ = size;
+  GOOGLE_SAFE_CONCURRENT_WRITES_END();
+}
+const ::google::protobuf::Descriptor* Person::descriptor() {
+  protobuf_AssignDescriptorsOnce();
+  return Person_descriptor_;
+}
+
+const Person& Person::default_instance() {
+  if (default_instance_ == NULL) protobuf_AddDesc_protocol_2dbuffer_2eproto();
+  return *default_instance_;
+}
+
+Person* Person::default_instance_ = NULL;
+
+Person* Person::New() const {
+  return new Person;
+}
+
+void Person::Clear() {
+  if (_has_bits_[0 / 32] & (0xffu << (0 % 32))) {
+    if (has_name()) {
+      if (name_ != &::google::protobuf::internal::kEmptyString) {
+        name_->clear();
+      }
+    }
+  }
+  ::memset(_has_bits_, 0, sizeof(_has_bits_));
+  mutable_unknown_fields()->Clear();
+}
+
+bool Person::MergePartialFromCodedStream(
+    ::google::protobuf::io::CodedInputStream* input) {
+#define DO_(EXPRESSION) if (!(EXPRESSION)) return false
+  ::google::protobuf::uint32 tag;
+  while ((tag = input->ReadTag()) != 0) {
+    switch (::google::protobuf::internal::WireFormatLite::GetTagFieldNumber(tag)) {
+      // required string name = 1;
+      case 1: {
+        if (::google::protobuf::internal::WireFormatLite::GetTagWireType(tag) ==
+            ::google::protobuf::internal::WireFormatLite::WIRETYPE_LENGTH_DELIMITED) {
+          DO_(::google::protobuf::internal::WireFormatLite::ReadString(
+                input, this->mutable_name()));
+          ::google::protobuf::internal::WireFormat::VerifyUTF8String(
+            this->name().data(), this->name().length(),
+            ::google::protobuf::internal::WireFormat::PARSE);
+        } else {
+          goto handle_uninterpreted;
+        }
+        if (input->ExpectAtEnd()) return true;
+        break;
+      }
+
+      default: {
+      handle_uninterpreted:
+        if (::google::protobuf::internal::WireFormatLite::GetTagWireType(tag) ==
+            ::google::protobuf::internal::WireFormatLite::WIRETYPE_END_GROUP) {
+          return true;
+        }
+        DO_(::google::protobuf::internal::WireFormat::SkipField(
+              input, tag, mutable_unknown_fields()));
+        break;
+      }
+    }
+  }
+  return true;
+#undef DO_
+}
+
+void Person::SerializeWithCachedSizes(
+    ::google::protobuf::io::CodedOutputStream* output) const {
+  // required string name = 1;
+  if (has_name()) {
+    ::google::protobuf::internal::WireFormat::VerifyUTF8String(
+      this->name().data(), this->name().length(),
+      ::google::protobuf::internal::WireFormat::SERIALIZE);
+    ::google::protobuf::internal::WireFormatLite::WriteString(
+      1, this->name(), output);
+  }
+
+  if (!unknown_fields().empty()) {
+    ::google::protobuf::internal::WireFormat::SerializeUnknownFields(
+        unknown_fields(), output);
+  }
+}
+
+::google::protobuf::uint8* Person::SerializeWithCachedSizesToArray(
+    ::google::protobuf::uint8* target) const {
+  // required string name = 1;
+  if (has_name()) {
+    ::google::protobuf::internal::WireFormat::VerifyUTF8String(
+      this->name().data(), this->name().length(),
+      ::google::protobuf::internal::WireFormat::SERIALIZE);
+    target =
+      ::google::protobuf::internal::WireFormatLite::WriteStringToArray(
+        1, this->name(), target);
+  }
+
+  if (!unknown_fields().empty()) {
+    target = ::google::protobuf::internal::WireFormat::SerializeUnknownFieldsToArray(
+        unknown_fields(), target);
+  }
+  return target;
+}
+
+int Person::ByteSize() const {
+  int total_size = 0;
+
+  if (_has_bits_[0 / 32] & (0xffu << (0 % 32))) {
+    // required string name = 1;
+    if (has_name()) {
+      total_size += 1 +
+        ::google::protobuf::internal::WireFormatLite::StringSize(
+          this->name());
+    }
+
+  }
+  if (!unknown_fields().empty()) {
+    total_size +=
+      ::google::protobuf::internal::WireFormat::ComputeUnknownFieldsSize(
+        unknown_fields());
+  }
+  GOOGLE_SAFE_CONCURRENT_WRITES_BEGIN();
+  _cached_size_ = total_size;
+  GOOGLE_SAFE_CONCURRENT_WRITES_END();
+  return total_size;
+}
+
+void Person::MergeFrom(const ::google::protobuf::Message& from) {
+  GOOGLE_CHECK_NE(&from, this);
+  const Person* source =
+    ::google::protobuf::internal::dynamic_cast_if_available<const Person*>(
+      &from);
+  if (source == NULL) {
+    ::google::protobuf::internal::ReflectionOps::Merge(from, this);
+  } else {
+    MergeFrom(*source);
+  }
+}
+
+void Person::MergeFrom(const Person& from) {
+  GOOGLE_CHECK_NE(&from, this);
+  if (from._has_bits_[0 / 32] & (0xffu << (0 % 32))) {
+    if (from.has_name()) {
+      set_name(from.name());
+    }
+  }
+  mutable_unknown_fields()->MergeFrom(from.unknown_fields());
+}
+
+void Person::CopyFrom(const ::google::protobuf::Message& from) {
+  if (&from == this) return;
+  Clear();
+  MergeFrom(from);
+}
+
+void Person::CopyFrom(const Person& from) {
+  if (&from == this) return;
+  Clear();
+  MergeFrom(from);
+}
+
+bool Person::IsInitialized() const {
+  if ((_has_bits_[0] & 0x00000001) != 0x00000001) return false;
+
+  return true;
+}
+
+void Person::Swap(Person* other) {
+  if (other != this) {
+    std::swap(name_, other->name_);
+    std::swap(_has_bits_[0], other->_has_bits_[0]);
+    _unknown_fields_.Swap(&other->_unknown_fields_);
+    std::swap(_cached_size_, other->_cached_size_);
+  }
+}
+
+::google::protobuf::Metadata Person::GetMetadata() const {
+  protobuf_AssignDescriptorsOnce();
+  ::google::protobuf::Metadata metadata;
+  metadata.descriptor = Person_descriptor_;
+  metadata.reflection = Person_reflection_;
+  return metadata;
+}
+
+
+// @@protoc_insertion_point(namespace_scope)
+
+}  // namespace persons
+
+// @@protoc_insertion_point(global_scope)

samples/C++/protocol-buffer.pb.h

@@ -0,0 +1,218 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: protocol-buffer.proto
+
+#ifndef PROTOBUF_protocol_2dbuffer_2eproto__INCLUDED
+#define PROTOBUF_protocol_2dbuffer_2eproto__INCLUDED
+
+#include <string>
+
+#include <google/protobuf/stubs/common.h>
+
+#if GOOGLE_PROTOBUF_VERSION < 2005000
+#error This file was generated by a newer version of protoc which is
+#error incompatible with your Protocol Buffer headers.  Please update
+#error your headers.
+#endif
+#if 2005000 < GOOGLE_PROTOBUF_MIN_PROTOC_VERSION
+#error This file was generated by an older version of protoc which is
+#error incompatible with your Protocol Buffer headers.  Please
+#error regenerate this file with a newer version of protoc.
+#endif
+
+#include <google/protobuf/generated_message_util.h>
+#include <google/protobuf/message.h>
+#include <google/protobuf/repeated_field.h>
+#include <google/protobuf/extension_set.h>
+#include <google/protobuf/unknown_field_set.h>
+// @@protoc_insertion_point(includes)
+
+namespace persons {
+
+// Internal implementation detail -- do not call these.
+void  protobuf_AddDesc_protocol_2dbuffer_2eproto();
+void protobuf_AssignDesc_protocol_2dbuffer_2eproto();
+void protobuf_ShutdownFile_protocol_2dbuffer_2eproto();
+
+class Person;
+
+// ===================================================================
+
+class Person : public ::google::protobuf::Message {
+ public:
+  Person();
+  virtual ~Person();
+
+  Person(const Person& from);
+
+  inline Person& operator=(const Person& from) {
+    CopyFrom(from);
+    return *this;
+  }
+
+  inline const ::google::protobuf::UnknownFieldSet& unknown_fields() const {
+    return _unknown_fields_;
+  }
+
+  inline ::google::protobuf::UnknownFieldSet* mutable_unknown_fields() {
+    return &_unknown_fields_;
+  }
+
+  static const ::google::protobuf::Descriptor* descriptor();
+  static const Person& default_instance();
+
+  void Swap(Person* other);
+
+  // implements Message ----------------------------------------------
+
+  Person* New() const;
+  void CopyFrom(const ::google::protobuf::Message& from);
+  void MergeFrom(const ::google::protobuf::Message& from);
+  void CopyFrom(const Person& from);
+  void MergeFrom(const Person& from);
+  void Clear();
+  bool IsInitialized() const;
+
+  int ByteSize() const;
+  bool MergePartialFromCodedStream(
+      ::google::protobuf::io::CodedInputStream* input);
+  void SerializeWithCachedSizes(
+      ::google::protobuf::io::CodedOutputStream* output) const;
+  ::google::protobuf::uint8* SerializeWithCachedSizesToArray(::google::protobuf::uint8* output) const;
+  int GetCachedSize() const { return _cached_size_; }
+  private:
+  void SharedCtor();
+  void SharedDtor();
+  void SetCachedSize(int size) const;
+  public:
+
+  ::google::protobuf::Metadata GetMetadata() const;
+
+  // nested types ----------------------------------------------------
+
+  // accessors -------------------------------------------------------
+
+  // required string name = 1;
+  inline bool has_name() const;
+  inline void clear_name();
+  static const int kNameFieldNumber = 1;
+  inline const ::std::string& name() const;
+  inline void set_name(const ::std::string& value);
+  inline void set_name(const char* value);
+  inline void set_name(const char* value, size_t size);
+  inline ::std::string* mutable_name();
+  inline ::std::string* release_name();
+  inline void set_allocated_name(::std::string* name);
+
+  // @@protoc_insertion_point(class_scope:persons.Person)
+ private:
+  inline void set_has_name();
+  inline void clear_has_name();
+
+  ::google::protobuf::UnknownFieldSet _unknown_fields_;
+
+  ::std::string* name_;
+
+  mutable int _cached_size_;
+  ::google::protobuf::uint32 _has_bits_[(1 + 31) / 32];
+
+  friend void  protobuf_AddDesc_protocol_2dbuffer_2eproto();
+  friend void protobuf_AssignDesc_protocol_2dbuffer_2eproto();
+  friend void protobuf_ShutdownFile_protocol_2dbuffer_2eproto();
+
+  void InitAsDefaultInstance();
+  static Person* default_instance_;
+};
+// ===================================================================
+
+
+// ===================================================================
+
+// Person
+
+// required string name = 1;
+inline bool Person::has_name() const {
+  return (_has_bits_[0] & 0x00000001u) != 0;
+}
+inline void Person::set_has_name() {
+  _has_bits_[0] |= 0x00000001u;
+}
+inline void Person::clear_has_name() {
+  _has_bits_[0] &= ~0x00000001u;
+}
+inline void Person::clear_name() {
+  if (name_ != &::google::protobuf::internal::kEmptyString) {
+    name_->clear();
+  }
+  clear_has_name();
+}
+inline const ::std::string& Person::name() const {
+  return *name_;
+}
+inline void Person::set_name(const ::std::string& value) {
+  set_has_name();
+  if (name_ == &::google::protobuf::internal::kEmptyString) {
+    name_ = new ::std::string;
+  }
+  name_->assign(value);
+}
+inline void Person::set_name(const char* value) {
+  set_has_name();
+  if (name_ == &::google::protobuf::internal::kEmptyString) {
+    name_ = new ::std::string;
+  }
+  name_->assign(value);
+}
+inline void Person::set_name(const char* value, size_t size) {
+  set_has_name();
+  if (name_ == &::google::protobuf::internal::kEmptyString) {
+    name_ = new ::std::string;
+  }
+  name_->assign(reinterpret_cast<const char*>(value), size);
+}
+inline ::std::string* Person::mutable_name() {
+  set_has_name();
+  if (name_ == &::google::protobuf::internal::kEmptyString) {
+    name_ = new ::std::string;
+  }
+  return name_;
+}
+inline ::std::string* Person::release_name() {
+  clear_has_name();
+  if (name_ == &::google::protobuf::internal::kEmptyString) {
+    return NULL;
+  } else {
+    ::std::string* temp = name_;
+    name_ = const_cast< ::std::string*>(&::google::protobuf::internal::kEmptyString);
+    return temp;
+  }
+}
+inline void Person::set_allocated_name(::std::string* name) {
+  if (name_ != &::google::protobuf::internal::kEmptyString) {
+    delete name_;
+  }
+  if (name) {
+    set_has_name();
+    name_ = name;
+  } else {
+    clear_has_name();
+    name_ = const_cast< ::std::string*>(&::google::protobuf::internal::kEmptyString);
+  }
+}
+
+
+// @@protoc_insertion_point(namespace_scope)
+
+}  // namespace persons
+
+#ifndef SWIG
+namespace google {
+namespace protobuf {
+
+
+}  // namespace google
+}  // namespace protobuf
+#endif  // SWIG
+
+// @@protoc_insertion_point(global_scope)
+
+#endif  // PROTOBUF_protocol_2dbuffer_2eproto__INCLUDED

samples/Java/ProtocolBuffer.java

@@ -0,0 +1,528 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: protocol-buffer.proto
+
+package persons;
+
+public final class ProtocolBuffer {
+  private ProtocolBuffer() {}
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistry registry) {
+  }
+  public interface PersonOrBuilder
+      extends com.google.protobuf.MessageOrBuilder {
+
+    // required string name = 1;
+    /**
+     * <code>required string name = 1;</code>
+     */
+    boolean hasName();
+    /**
+     * <code>required string name = 1;</code>
+     */
+    java.lang.String getName();
+    /**
+     * <code>required string name = 1;</code>
+     */
+    com.google.protobuf.ByteString
+        getNameBytes();
+  }
+  /**
+   * Protobuf type {@code persons.Person}
+   */
+  public static final class Person extends
+      com.google.protobuf.GeneratedMessage
+      implements PersonOrBuilder {
+    // Use Person.newBuilder() to construct.
+    private Person(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
+      super(builder);
+      this.unknownFields = builder.getUnknownFields();
+    }
+    private Person(boolean noInit) { this.unknownFields = com.google.protobuf.UnknownFieldSet.getDefaultInstance(); }
+
+    private static final Person defaultInstance;
+    public static Person getDefaultInstance() {
+      return defaultInstance;
+    }
+
+    public Person getDefaultInstanceForType() {
+      return defaultInstance;
+    }
+
+    private final com.google.protobuf.UnknownFieldSet unknownFields;
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet
+        getUnknownFields() {
+      return this.unknownFields;
+    }
+    private Person(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      initFields();
+      int mutable_bitField0_ = 0;
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            default: {
+              if (!parseUnknownField(input, unknownFields,
+                                     extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+            case 10: {
+              bitField0_ |= 0x00000001;
+              name_ = input.readBytes();
+              break;
+            }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(
+            e.getMessage()).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return persons.ProtocolBuffer.internal_static_persons_Person_descriptor;
+    }
+
+    protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return persons.ProtocolBuffer.internal_static_persons_Person_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              persons.ProtocolBuffer.Person.class, persons.ProtocolBuffer.Person.Builder.class);
+    }
+
+    public static com.google.protobuf.Parser<Person> PARSER =
+        new com.google.protobuf.AbstractParser<Person>() {
+      public Person parsePartialFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return new Person(input, extensionRegistry);
+      }
+    };
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<Person> getParserForType() {
+      return PARSER;
+    }
+
+    private int bitField0_;
+    // required string name = 1;
+    public static final int NAME_FIELD_NUMBER = 1;
+    private java.lang.Object name_;
+    /**
+     * <code>required string name = 1;</code>
+     */
+    public boolean hasName() {
+      return ((bitField0_ & 0x00000001) == 0x00000001);
+    }
+    /**
+     * <code>required string name = 1;</code>
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = 
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        if (bs.isValidUtf8()) {
+          name_ = s;
+        }
+        return s;
+      }
+    }
+    /**
+     * <code>required string name = 1;</code>
+     */
+    public com.google.protobuf.ByteString
+        getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    private void initFields() {
+      name_ = "";
+    }
+    private byte memoizedIsInitialized = -1;
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized != -1) return isInitialized == 1;
+
+      if (!hasName()) {
+        memoizedIsInitialized = 0;
+        return false;
+      }
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    public void writeTo(com.google.protobuf.CodedOutputStream output)
+                        throws java.io.IOException {
+      getSerializedSize();
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+        output.writeBytes(1, getNameBytes());
+      }
+      getUnknownFields().writeTo(output);
+    }
+
+    private int memoizedSerializedSize = -1;
+    public int getSerializedSize() {
+      int size = memoizedSerializedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeBytesSize(1, getNameBytes());
+      }
+      size += getUnknownFields().getSerializedSize();
+      memoizedSerializedSize = size;
+      return size;
+    }
+
+    private static final long serialVersionUID = 0L;
+    @java.lang.Override
+    protected java.lang.Object writeReplace()
+        throws java.io.ObjectStreamException {
+      return super.writeReplace();
+    }
+
+    public static persons.ProtocolBuffer.Person parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static persons.ProtocolBuffer.Person parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static persons.ProtocolBuffer.Person parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static persons.ProtocolBuffer.Person parseFrom(
+        byte[] data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static persons.ProtocolBuffer.Person parseFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return PARSER.parseFrom(input);
+    }
+    public static persons.ProtocolBuffer.Person parseFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return PARSER.parseFrom(input, extensionRegistry);
+    }
+    public static persons.ProtocolBuffer.Person parseDelimitedFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return PARSER.parseDelimitedFrom(input);
+    }
+    public static persons.ProtocolBuffer.Person parseDelimitedFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return PARSER.parseDelimitedFrom(input, extensionRegistry);
+    }
+    public static persons.ProtocolBuffer.Person parseFrom(
+        com.google.protobuf.CodedInputStream input)
+        throws java.io.IOException {
+      return PARSER.parseFrom(input);
+    }
+    public static persons.ProtocolBuffer.Person parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return PARSER.parseFrom(input, extensionRegistry);
+    }
+
+    public static Builder newBuilder() { return Builder.create(); }
+    public Builder newBuilderForType() { return newBuilder(); }
+    public static Builder newBuilder(persons.ProtocolBuffer.Person prototype) {
+      return newBuilder().mergeFrom(prototype);
+    }
+    public Builder toBuilder() { return newBuilder(this); }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessage.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     * Protobuf type {@code persons.Person}
+     */
+    public static final class Builder extends
+        com.google.protobuf.GeneratedMessage.Builder<Builder>
+       implements persons.ProtocolBuffer.PersonOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor
+          getDescriptor() {
+        return persons.ProtocolBuffer.internal_static_persons_Person_descriptor;
+      }
+
+      protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return persons.ProtocolBuffer.internal_static_persons_Person_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                persons.ProtocolBuffer.Person.class, persons.ProtocolBuffer.Person.Builder.class);
+      }
+
+      // Construct using persons.ProtocolBuffer.Person.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(
+          com.google.protobuf.GeneratedMessage.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessage.alwaysUseFieldBuilders) {
+        }
+      }
+      private static Builder create() {
+        return new Builder();
+      }
+
+      public Builder clear() {
+        super.clear();
+        name_ = "";
+        bitField0_ = (bitField0_ & ~0x00000001);
+        return this;
+      }
+
+      public Builder clone() {
+        return create().mergeFrom(buildPartial());
+      }
+
+      public com.google.protobuf.Descriptors.Descriptor
+          getDescriptorForType() {
+        return persons.ProtocolBuffer.internal_static_persons_Person_descriptor;
+      }
+
+      public persons.ProtocolBuffer.Person getDefaultInstanceForType() {
+        return persons.ProtocolBuffer.Person.getDefaultInstance();
+      }
+
+      public persons.ProtocolBuffer.Person build() {
+        persons.ProtocolBuffer.Person result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      public persons.ProtocolBuffer.Person buildPartial() {
+        persons.ProtocolBuffer.Person result = new persons.ProtocolBuffer.Person(this);
+        int from_bitField0_ = bitField0_;
+        int to_bitField0_ = 0;
+        if (((from_bitField0_ & 0x00000001) == 0x00000001)) {
+          to_bitField0_ |= 0x00000001;
+        }
+        result.name_ = name_;
+        result.bitField0_ = to_bitField0_;
+        onBuilt();
+        return result;
+      }
+
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof persons.ProtocolBuffer.Person) {
+          return mergeFrom((persons.ProtocolBuffer.Person)other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(persons.ProtocolBuffer.Person other) {
+        if (other == persons.ProtocolBuffer.Person.getDefaultInstance()) return this;
+        if (other.hasName()) {
+          bitField0_ |= 0x00000001;
+          name_ = other.name_;
+          onChanged();
+        }
+        this.mergeUnknownFields(other.getUnknownFields());
+        return this;
+      }
+
+      public final boolean isInitialized() {
+        if (!hasName()) {
+          
+          return false;
+        }
+        return true;
+      }
+
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        persons.ProtocolBuffer.Person parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (persons.ProtocolBuffer.Person) e.getUnfinishedMessage();
+          throw e;
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+      private int bitField0_;
+
+      // required string name = 1;
+      private java.lang.Object name_ = "";
+      /**
+       * <code>required string name = 1;</code>
+       */
+      public boolean hasName() {
+        return ((bitField0_ & 0x00000001) == 0x00000001);
+      }
+      /**
+       * <code>required string name = 1;</code>
+       */
+      public java.lang.String getName() {
+        java.lang.Object ref = name_;
+        if (!(ref instanceof java.lang.String)) {
+          java.lang.String s = ((com.google.protobuf.ByteString) ref)
+              .toStringUtf8();
+          name_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       * <code>required string name = 1;</code>
+       */
+      public com.google.protobuf.ByteString
+          getNameBytes() {
+        java.lang.Object ref = name_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b = 
+              com.google.protobuf.ByteString.copyFromUtf8(
+                  (java.lang.String) ref);
+          name_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       * <code>required string name = 1;</code>
+       */
+      public Builder setName(
+          java.lang.String value) {
+        if (value == null) {
+    throw new NullPointerException();
+  }
+  bitField0_ |= 0x00000001;
+        name_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>required string name = 1;</code>
+       */
+      public Builder clearName() {
+        bitField0_ = (bitField0_ & ~0x00000001);
+        name_ = getDefaultInstance().getName();
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>required string name = 1;</code>
+       */
+      public Builder setNameBytes(
+          com.google.protobuf.ByteString value) {
+        if (value == null) {
+    throw new NullPointerException();
+  }
+  bitField0_ |= 0x00000001;
+        name_ = value;
+        onChanged();
+        return this;
+      }
+
+      // @@protoc_insertion_point(builder_scope:persons.Person)
+    }
+
+    static {
+      defaultInstance = new Person(true);
+      defaultInstance.initFields();
+    }
+
+    // @@protoc_insertion_point(class_scope:persons.Person)
+  }
+
+  private static com.google.protobuf.Descriptors.Descriptor
+    internal_static_persons_Person_descriptor;
+  private static
+    com.google.protobuf.GeneratedMessage.FieldAccessorTable
+      internal_static_persons_Person_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor
+      getDescriptor() {
+    return descriptor;
+  }
+  private static com.google.protobuf.Descriptors.FileDescriptor
+      descriptor;
+  static {
+    java.lang.String[] descriptorData = {
+      "\n\025protocol-buffer.proto\022\007persons\"\026\n\006Pers" +
+      "on\022\014\n\004name\030\001 \002(\t"
+    };
+    com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner assigner =
+      new com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner() {
+        public com.google.protobuf.ExtensionRegistry assignDescriptors(
+            com.google.protobuf.Descriptors.FileDescriptor root) {
+          descriptor = root;
+          internal_static_persons_Person_descriptor =
+            getDescriptor().getMessageTypes().get(0);
+          internal_static_persons_Person_fieldAccessorTable = new
+            com.google.protobuf.GeneratedMessage.FieldAccessorTable(
+              internal_static_persons_Person_descriptor,
+              new java.lang.String[] { "Name", });
+          return null;
+        }
+      };
+    com.google.protobuf.Descriptors.FileDescriptor
+      .internalBuildGeneratedFileFrom(descriptorData,
+        new com.google.protobuf.Descriptors.FileDescriptor[] {
+        }, assigner);
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}

samples/Python/protocol_buffer_pb2.py

@@ -0,0 +1,57 @@
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: protocol-buffer.proto
+
+from google.protobuf import descriptor as _descriptor
+from google.protobuf import message as _message
+from google.protobuf import reflection as _reflection
+from google.protobuf import descriptor_pb2
+# @@protoc_insertion_point(imports)
+
+
+
+
+DESCRIPTOR = _descriptor.FileDescriptor(
+  name='protocol-buffer.proto',
+  package='persons',
+  serialized_pb='\n\x15protocol-buffer.proto\x12\x07persons\"\x16\n\x06Person\x12\x0c\n\x04name\x18\x01 \x02(\t')
+
+
+
+
+_PERSON = _descriptor.Descriptor(
+  name='Person',
+  full_name='persons.Person',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='name', full_name='persons.Person.name', index=0,
+      number=1, type=9, cpp_type=9, label=2,
+      has_default_value=False, default_value=unicode("", "utf-8"),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=34,
+  serialized_end=56,
+)
+
+DESCRIPTOR.message_types_by_name['Person'] = _PERSON
+
+class Person(_message.Message):
+  __metaclass__ = _reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _PERSON
+
+  # @@protoc_insertion_point(class_scope:persons.Person)
+
+
+# @@protoc_insertion_point(module_scope)

test/test_blob.rb

@@ -197,6 +197,12 @@ class TestBlob < Test::Unit::TestCase
 
     assert blob("JavaScript/intro.js").generated?
     assert blob("JavaScript/classes.js").generated?
+
+    # Protocol Buffer generated code
+    assert blob("C++/protocol-buffer.pb.h").generated?
+    assert blob("C++/protocol-buffer.pb.cc").generated?
+    assert blob("Java/ProtocolBuffer.java").generated?
+    assert blob("Python/protocol_buffer_pb2.py").generated?
   end
 
   def test_vendored