Index: trunk/src/third_party/libaddressinput/chromium/trie.h |
=================================================================== |
--- trunk/src/third_party/libaddressinput/chromium/trie.h (revision 282731) |
+++ trunk/src/third_party/libaddressinput/chromium/trie.h (working copy) |
@@ -1,54 +0,0 @@ |
-// Copyright 2014 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 THIRD_PARTY_LIBADDRESSINPUT_CHROMIUM_TRIE_H_ |
-#define THIRD_PARTY_LIBADDRESSINPUT_CHROMIUM_TRIE_H_ |
- |
-#include <stdint.h> |
-#include <map> |
-#include <set> |
-#include <vector> |
- |
-namespace autofill { |
- |
-// A prefix search tree. Can return all objects whose keys start with a prefix |
-// byte sequence. |
-// |
-// Maps keys to multiple objects. This property is useful when mapping region |
-// names to region objects. For example, there's a "St. Petersburg" in Florida, |
-// and there's a "St. Petersburg" in Russia. A lookup for "St. Petersburg" key |
-// should return two distinct objects. |
-template <typename T> |
-class Trie { |
- public: |
- Trie(); |
- ~Trie(); |
- |
- // Returns true if no data was added in AddDataForKey(). |
- bool empty() const { return data_list_.empty() && sub_nodes_.empty(); } |
- |
- // Adds a mapping from the 0 terminated |key| to |data_item|. Can be called |
- // with the same |key| multiple times. |
- void AddDataForKey(const std::vector<uint8_t>& key, const T& data_item); |
- |
- // Adds all objects whose keys start with the 0 terminated |key_prefix| to the |
- // |results| parameter. The |results| parameter should not be NULL. |
- void FindDataForKeyPrefix(const std::vector<uint8_t>& key_prefix, |
- std::set<T>* results) const; |
- |
- private: |
- // All objects for this node in the Trie. This field is a collection to enable |
- // mapping the same key to multiple objects. |
- std::set<T> data_list_; |
- |
- // Trie sub nodes. The root Trie stores the objects for the empty key. The |
- // children of the root Trie store the objects for the one-byte keys. The |
- // grand-children of the root Trie store the objects for the two-byte keys, |
- // and so on. |
- std::map<uint8_t, Trie<T> > sub_nodes_; |
-}; |
- |
-} // namespace autofill |
- |
-#endif // THIRD_PARTY_LIBADDRESSINPUT_CHROMIUM_TRIE_H_ |