Update //third_party/protobuf to version 3.

third_party/protobuf/src/google/protobuf/util/json_util.cc

+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+// https://developers.google.com/protocol-buffers/
+//
+// 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.
+
+#include <google/protobuf/util/json_util.h>
+
+#include <google/protobuf/stubs/common.h>
+#include <google/protobuf/io/coded_stream.h>
+#include <google/protobuf/io/zero_copy_stream.h>
+#include <google/protobuf/util/internal/default_value_objectwriter.h>
+#include <google/protobuf/util/internal/error_listener.h>
+#include <google/protobuf/util/internal/json_objectwriter.h>
+#include <google/protobuf/util/internal/json_stream_parser.h>
+#include <google/protobuf/util/internal/protostream_objectsource.h>
+#include <google/protobuf/util/internal/protostream_objectwriter.h>
+#include <google/protobuf/util/type_resolver.h>
+#include <google/protobuf/util/type_resolver_util.h>
+#include <google/protobuf/stubs/bytestream.h>
+#include <google/protobuf/stubs/status_macros.h>
+
+namespace google {
+namespace protobuf {
+namespace util {
+
+namespace internal {
+void ZeroCopyStreamByteSink::Append(const char* bytes, size_t len) {
+  while (len > 0) {
+    void* buffer;
+    int length;
+    if (!stream_->Next(&buffer, &length)) {
+      // There isn't a way for ByteSink to report errors.
+      return;
+    }
+    if (len < length) {
+      memcpy(buffer, bytes, len);
+      stream_->BackUp(length - len);
+      break;
+    } else {
+      memcpy(buffer, bytes, length);
+      bytes += length;
+      len -= length;
+    }
+  }
+}
+}  // namespace internal
+
+util::Status BinaryToJsonStream(TypeResolver* resolver,
+                                  const string& type_url,
+                                  io::ZeroCopyInputStream* binary_input,
+                                  io::ZeroCopyOutputStream* json_output,
+                                  const JsonOptions& options) {
+  io::CodedInputStream in_stream(binary_input);
+  google::protobuf::Type type;
+  RETURN_IF_ERROR(resolver->ResolveMessageType(type_url, &type));
+  converter::ProtoStreamObjectSource proto_source(&in_stream, resolver, type);
+  io::CodedOutputStream out_stream(json_output);
+  converter::JsonObjectWriter json_writer(options.add_whitespace ? " " : "",
+                                          &out_stream);
+  if (options.always_print_primitive_fields) {
+    converter::DefaultValueObjectWriter default_value_writer(
+        resolver, type, &json_writer);
+    return proto_source.WriteTo(&default_value_writer);
+  } else {
+    return proto_source.WriteTo(&json_writer);
+  }
+}
+
+util::Status BinaryToJsonString(TypeResolver* resolver,
+                                  const string& type_url,
+                                  const string& binary_input,
+                                  string* json_output,
+                                  const JsonOptions& options) {
+  io::ArrayInputStream input_stream(binary_input.data(), binary_input.size());
+  io::StringOutputStream output_stream(json_output);
+  return BinaryToJsonStream(resolver, type_url, &input_stream, &output_stream,
+                            options);
+}
+
+util::Status JsonToBinaryStream(TypeResolver* resolver,
+                                  const string& type_url,
+                                  io::ZeroCopyInputStream* json_input,
+                                  io::ZeroCopyOutputStream* binary_output) {
+  google::protobuf::Type type;
+  RETURN_IF_ERROR(resolver->ResolveMessageType(type_url, &type));
+  internal::ZeroCopyStreamByteSink sink(binary_output);
+  converter::NoopErrorListener listener;
+  converter::ProtoStreamObjectWriter proto_writer(resolver, type, &sink,
+                                                  &listener);
+
+  converter::JsonStreamParser parser(&proto_writer);
+  const void* buffer;
+  int length;
+  while (json_input->Next(&buffer, &length)) {
+    if (length == 0) continue;
+    RETURN_IF_ERROR(
+        parser.Parse(StringPiece(static_cast<const char*>(buffer), length)));
+  }
+  RETURN_IF_ERROR(parser.FinishParse());
+
+  return util::Status::OK;
+}
+
+util::Status JsonToBinaryString(TypeResolver* resolver,
+                                  const string& type_url,
+                                  const string& json_input,
+                                  string* binary_output) {
+  io::ArrayInputStream input_stream(json_input.data(), json_input.size());
+  io::StringOutputStream output_stream(binary_output);
+  return JsonToBinaryStream(resolver, type_url, &input_stream, &output_stream);
+}
+
+}  // namespace util
+}  // namespace protobuf
+}  // namespace google