NOT FOR SUBMIT: Remove NetworkLibrary

chrome/browser/chromeos/cros/enum_mapper.h

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CHROME_BROWSER_CHROMEOS_CROS_ENUM_MAPPER_H_
-#define CHROME_BROWSER_CHROMEOS_CROS_ENUM_MAPPER_H_
-
-#include <map>
-#include <string>
-
-#include "base/basictypes.h"
-
-namespace chromeos {
-
-// This turns an array of string-to-enum-value mappings into a class
-// that can cache the mapping and do quick lookups using an actual map
-// class.  Usage is something like:
-//
-// const char kKey1[] = "key1";
-// const char kKey2[] = "key2";
-//
-// enum EnumFoo {
-//   UNKNOWN = 0,
-//   FOO = 1,
-//   BAR = 2,
-// };
-//
-// const EnumMapper<EnumFoo>::Pair index_table[] = {
-//   { kKey1, FOO },
-//   { kKey2, BAR },
-// };
-//
-// EnumMapper<EnumFoo> mapper(index_table, arraysize(index_table), UNKNOWN);
-// EnumFoo value = mapper.Get(kKey1);  // Returns FOO.
-// EnumFoo value = mapper.Get('boo');  // Returns UNKNOWN.
-template <typename EnumType>
-class EnumMapper {
- public:
-  struct Pair {
-    const char* key;
-    const EnumType value;
-  };
-
-  EnumMapper(const Pair* list, size_t num_entries, EnumType unknown)
-      : unknown_value_(unknown) {
-    for (size_t i = 0; i < num_entries; ++i, ++list) {
-      enum_map_[list->key] = list->value;
-      inverse_enum_map_[list->value] = list->key;
-    }
-  }
-
-  EnumType Get(const std::string& type) const {
-    EnumMapConstIter iter = enum_map_.find(type);
-    if (iter != enum_map_.end())
-      return iter->second;
-    return unknown_value_;
-  }
-
-  std::string GetKey(EnumType type) const {
-    InverseEnumMapConstIter iter = inverse_enum_map_.find(type);
-    if (iter != inverse_enum_map_.end())
-      return iter->second;
-    return std::string();
-  }
-
- private:
-  typedef typename std::map<std::string, EnumType> EnumMap;
-  typedef typename std::map<EnumType, std::string> InverseEnumMap;
-  typedef typename EnumMap::const_iterator EnumMapConstIter;
-  typedef typename InverseEnumMap::const_iterator InverseEnumMapConstIter;
-  EnumMap enum_map_;
-  InverseEnumMap inverse_enum_map_;
-  EnumType unknown_value_;
-  DISALLOW_COPY_AND_ASSIGN(EnumMapper);
-};
-
-}  // namespace chromeos
-
-#endif  // CHROME_BROWSER_CHROMEOS_CROS_ENUM_MAPPER_H_