Pull new version of protobuf sources.

third_party/protobuf/src/google/protobuf/compiler/javanano/javanano_extension.cc

Index: third_party/protobuf/src/google/protobuf/compiler/javanano/javanano_extension.cc
diff --git a/third_party/protobuf/src/google/protobuf/compiler/javanano/javanano_extension.cc b/third_party/protobuf/src/google/protobuf/compiler/javanano/javanano_extension.cc
new file mode 100644
index 0000000000000000000000000000000000000000..0b9d1d8de7429e4a31ccd41529962c4cff7717a7
--- /dev/null
+++ b/third_party/protobuf/src/google/protobuf/compiler/javanano/javanano_extension.cc
@@ -0,0 +1,150 @@
+// 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: bduff@google.com (Brian Duff)
+
+#include <google/protobuf/compiler/javanano/javanano_extension.h>
+#include <google/protobuf/compiler/javanano/javanano_helpers.h>
+#include <google/protobuf/io/printer.h>
+#include <google/protobuf/stubs/strutil.h>
+#include <google/protobuf/wire_format.h>
+
+namespace google {
+namespace protobuf {
+namespace compiler {
+namespace javanano {
+
+using internal::WireFormat;
+using internal::WireFormatLite;
+
+namespace {
+
+const char* GetTypeConstantName(const FieldDescriptor::Type type) {
+  switch (type) {
+    case FieldDescriptor::TYPE_INT32   : return "TYPE_INT32"   ;
+    case FieldDescriptor::TYPE_UINT32  : return "TYPE_UINT32"  ;
+    case FieldDescriptor::TYPE_SINT32  : return "TYPE_SINT32"  ;
+    case FieldDescriptor::TYPE_FIXED32 : return "TYPE_FIXED32" ;
+    case FieldDescriptor::TYPE_SFIXED32: return "TYPE_SFIXED32";
+    case FieldDescriptor::TYPE_INT64   : return "TYPE_INT64"   ;
+    case FieldDescriptor::TYPE_UINT64  : return "TYPE_UINT64"  ;
+    case FieldDescriptor::TYPE_SINT64  : return "TYPE_SINT64"  ;
+    case FieldDescriptor::TYPE_FIXED64 : return "TYPE_FIXED64" ;
+    case FieldDescriptor::TYPE_SFIXED64: return "TYPE_SFIXED64";
+    case FieldDescriptor::TYPE_FLOAT   : return "TYPE_FLOAT"   ;
+    case FieldDescriptor::TYPE_DOUBLE  : return "TYPE_DOUBLE"  ;
+    case FieldDescriptor::TYPE_BOOL    : return "TYPE_BOOL"    ;
+    case FieldDescriptor::TYPE_STRING  : return "TYPE_STRING"  ;
+    case FieldDescriptor::TYPE_BYTES   : return "TYPE_BYTES"   ;
+    case FieldDescriptor::TYPE_ENUM    : return "TYPE_ENUM"    ;
+    case FieldDescriptor::TYPE_GROUP   : return "TYPE_GROUP"   ;
+    case FieldDescriptor::TYPE_MESSAGE : return "TYPE_MESSAGE" ;
+
+    // No default because we want the compiler to complain if any new
+    // types are added.
+  }
+
+  GOOGLE_LOG(FATAL) << "Can't get here.";
+  return NULL;
+}
+
+}  // namespace
+
+void SetVariables(const FieldDescriptor* descriptor, const Params params,
+                  map<string, string>* variables) {
+  (*variables)["extends"] = ClassName(params, descriptor->containing_type());
+  (*variables)["name"] = RenameJavaKeywords(UnderscoresToCamelCase(descriptor));
+  bool repeated = descriptor->is_repeated();
+  (*variables)["repeated"] = repeated ? "Repeated" : "";
+  (*variables)["type"] = GetTypeConstantName(descriptor->type());
+  JavaType java_type = GetJavaType(descriptor->type());
+  string tag = SimpleItoa(WireFormat::MakeTag(descriptor));
+  if (java_type == JAVATYPE_MESSAGE) {
+    (*variables)["ext_type"] = "MessageTyped";
+    string message_type = ClassName(params, descriptor->message_type());
+    if (repeated) {
+      message_type += "[]";
+    }
+    (*variables)["class"] = message_type;
+    // For message typed extensions, tags_params contains a single tag
+    // for both singular and repeated cases.
+    (*variables)["tag_params"] = tag;
+  } else {
+    (*variables)["ext_type"] = "PrimitiveTyped";
+    if (!repeated) {
+      (*variables)["class"] = BoxedPrimitiveTypeName(java_type);
+      (*variables)["tag_params"] = tag;
+    } else {
+      (*variables)["class"] = PrimitiveTypeName(java_type) + "[]";
+      if (!descriptor->is_packable()) {
+        // Non-packable: nonPackedTag == tag, packedTag == 0
+        (*variables)["tag_params"] = tag + ", " + tag + ", 0";
+      } else if (descriptor->options().packed()) {
+        // Packable and packed: tag == packedTag
+        string non_packed_tag = SimpleItoa(WireFormatLite::MakeTag(
+            descriptor->number(),
+            WireFormat::WireTypeForFieldType(descriptor->type())));
+        (*variables)["tag_params"] = tag + ", " + non_packed_tag + ", " + tag;
+      } else {
+        // Packable and not packed: tag == nonPackedTag
+        string packed_tag = SimpleItoa(WireFormatLite::MakeTag(
+            descriptor->number(), WireFormatLite::WIRETYPE_LENGTH_DELIMITED));
+        (*variables)["tag_params"] = tag + ", " + tag + ", " + packed_tag;
+      }
+    }
+  }
+}
+
+ExtensionGenerator::
+ExtensionGenerator(const FieldDescriptor* descriptor, const Params& params)
+  : params_(params), descriptor_(descriptor) {
+  SetVariables(descriptor, params, &variables_);
+}
+
+ExtensionGenerator::~ExtensionGenerator() {}
+
+void ExtensionGenerator::Generate(io::Printer* printer) const {
+  printer->Print("\n");
+  PrintFieldComment(printer, descriptor_);
+  printer->Print(variables_,
+    "public static final com.google.protobuf.nano.Extension<\n"
+    "    $extends$,\n"
+    "    $class$> $name$ =\n"
+    "        com.google.protobuf.nano.Extension.create$repeated$$ext_type$(\n"
+    "            com.google.protobuf.nano.Extension.$type$,\n"
+    "            $class$.class,\n"
+    "            $tag_params$L);\n");
+}
+
+}  // namespace javanano
+}  // namespace compiler
+}  // namespace protobuf
+}  // namespace google
+