Revert https://codereview.chromium.org/1291903002 (protobuf roll).

third_party/protobuf/src/google/protobuf/compiler/objectivec/objectivec_map_field.cc

Index: third_party/protobuf/src/google/protobuf/compiler/objectivec/objectivec_map_field.cc
diff --git a/third_party/protobuf/src/google/protobuf/compiler/objectivec/objectivec_map_field.cc b/third_party/protobuf/src/google/protobuf/compiler/objectivec/objectivec_map_field.cc
deleted file mode 100644
index 2987f3db88d01b02c51907d69dd5a89ff2863a8a..0000000000000000000000000000000000000000
--- a/third_party/protobuf/src/google/protobuf/compiler/objectivec/objectivec_map_field.cc
+++ /dev/null
@@ -1,163 +0,0 @@
-// Protocol Buffers - Google's data interchange format
-// Copyright 2015 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 <map>
-#include <string>
-
-#include <google/protobuf/compiler/objectivec/objectivec_map_field.h>
-#include <google/protobuf/stubs/common.h>
-#include <google/protobuf/compiler/objectivec/objectivec_helpers.h>
-#include <google/protobuf/io/printer.h>
-#include <google/protobuf/stubs/strutil.h>
-#include <google/protobuf/stubs/substitute.h>
-
-namespace google {
-namespace protobuf {
-namespace compiler {
-namespace objectivec {
-
-// MapFieldGenerator uses RepeatedFieldGenerator as the parent because it
-// provides a bunch of things (no has* methods, comments for contained type,
-// etc.).
-
-namespace {
-
-const char* MapEntryTypeName(const FieldDescriptor* descriptor, bool isKey) {
-  ObjectiveCType type = GetObjectiveCType(descriptor);
-  switch (type) {
-    case OBJECTIVECTYPE_INT32:
-      return "Int32";
-    case OBJECTIVECTYPE_UINT32:
-      return "UInt32";
-    case OBJECTIVECTYPE_INT64:
-      return "Int64";
-    case OBJECTIVECTYPE_UINT64:
-      return "UInt64";
-    case OBJECTIVECTYPE_FLOAT:
-      return "Float";
-    case OBJECTIVECTYPE_DOUBLE:
-      return "Double";
-    case OBJECTIVECTYPE_BOOLEAN:
-      return "Bool";
-    case OBJECTIVECTYPE_STRING:
-      return (isKey ? "String" : "Object");
-    case OBJECTIVECTYPE_DATA:
-      return "Object";
-    case OBJECTIVECTYPE_ENUM:
-      return "Enum";
-    case OBJECTIVECTYPE_MESSAGE:
-      return "Object";
-  }
-
-  // Some compilers report reaching end of function even though all cases of
-  // the enum are handed in the switch.
-  GOOGLE_LOG(FATAL) << "Can't get here.";
-  return NULL;
-}
-
-}  // namespace
-
-MapFieldGenerator::MapFieldGenerator(const FieldDescriptor* descriptor)
-    : RepeatedFieldGenerator(descriptor) {
-  const FieldDescriptor* key_descriptor =
-      descriptor->message_type()->FindFieldByName("key");
-  const FieldDescriptor* value_descriptor =
-      descriptor->message_type()->FindFieldByName("value");
-  value_field_generator_.reset(FieldGenerator::Make(value_descriptor));
-
-  // Pull over some variables_ from the value.
-  variables_["field_type"] = value_field_generator_->variable("field_type");
-  variables_["default"] = value_field_generator_->variable("default");
-  variables_["default_name"] = value_field_generator_->variable("default_name");
-
-  // Build custom field flags.
-  std::vector<string> field_flags;
-  field_flags.push_back("GPBFieldMapKey" + GetCapitalizedType(key_descriptor));
-  // Pull over the current text format custom name values that was calculated.
-  if (variables_["fieldflags"].find("GPBFieldTextFormatNameCustom") !=
-      string::npos) {
-    field_flags.push_back("GPBFieldTextFormatNameCustom");
-  }
-  // Pull over some info from the value's flags.
-  const string& value_field_flags =
-      value_field_generator_->variable("fieldflags");
-  if (value_field_flags.find("GPBFieldHasDefaultValue") != string::npos) {
-    field_flags.push_back("GPBFieldHasDefaultValue");
-  }
-  if (value_field_flags.find("GPBFieldHasEnumDescriptor") != string::npos) {
-    field_flags.push_back("GPBFieldHasEnumDescriptor");
-  }
-  variables_["fieldflags"] = BuildFlagsString(field_flags);
-
-  ObjectiveCType value_objc_type = GetObjectiveCType(value_descriptor);
-  if ((GetObjectiveCType(key_descriptor) == OBJECTIVECTYPE_STRING) &&
-      ((value_objc_type == OBJECTIVECTYPE_STRING) ||
-       (value_objc_type == OBJECTIVECTYPE_DATA) ||
-       (value_objc_type == OBJECTIVECTYPE_MESSAGE))) {
-    variables_["array_storage_type"] = "NSMutableDictionary";
-  } else {
-    string base_name = MapEntryTypeName(key_descriptor, true);
-    base_name += MapEntryTypeName(value_descriptor, false);
-    base_name += "Dictionary";
-    variables_["array_storage_type"] = "GPB" + base_name;
-  }
-}
-
-MapFieldGenerator::~MapFieldGenerator() {}
-
-void MapFieldGenerator::FinishInitialization(void) {
-  RepeatedFieldGenerator::FinishInitialization();
-  // Use the array_comment suport in RepeatedFieldGenerator to output what the
-  // values in the map are.
-  const FieldDescriptor* value_descriptor =
-      descriptor_->message_type()->FindFieldByName("value");
-  ObjectiveCType value_objc_type = GetObjectiveCType(value_descriptor);
-  if ((value_objc_type == OBJECTIVECTYPE_MESSAGE) ||
-      (value_objc_type == OBJECTIVECTYPE_DATA) ||
-      (value_objc_type == OBJECTIVECTYPE_STRING) ||
-      (value_objc_type == OBJECTIVECTYPE_ENUM)) {
-    variables_["array_comment"] =
-        "// |" + variables_["name"] + "| values are |" + value_field_generator_->variable("storage_type") + "|\n";
-  } else {
-    variables_["array_comment"] = "";
-  }
-}
-
-void MapFieldGenerator::GenerateFieldDescriptionTypeSpecific(
-    io::Printer* printer) const {
-  // Relay it to the value generator to provide enum validator, message
-  // class, etc.
-  value_field_generator_->GenerateFieldDescriptionTypeSpecific(printer);
-}
-
-}  // namespace objectivec
-}  // namespace compiler
-}  // namespace protobuf
-}  // namespace google