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Diffstat (limited to 'compiler/utils/scoped_hashtable.h')
-rw-r--r-- | compiler/utils/scoped_hashtable.h | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/compiler/utils/scoped_hashtable.h b/compiler/utils/scoped_hashtable.h deleted file mode 100644 index bf8dd1fca7..0000000000 --- a/compiler/utils/scoped_hashtable.h +++ /dev/null @@ -1,71 +0,0 @@ -/* - * Copyright (C) 2013 The Android Open Source Project - - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include <stddef.h> -#include <map> -#include <list> - -#ifndef ART_COMPILER_UTILS_SCOPED_HASHTABLE_H_ -#define ART_COMPILER_UTILS_SCOPED_HASHTABLE_H_ - -namespace utils { -template <typename K, typename V> -class ScopedHashtable { - public: - explicit ScopedHashtable():scopes() { - } - - void OpenScope() { - scopes.push_front(std::map<K, V>()); - } - - // Lookups entry K starting from the current (topmost) scope - // and returns its value if found or NULL. - V Lookup(K k) const { - for (typename std::list<std::map<K, V>>::const_iterator scopes_it = scopes.begin(); - scopes_it != scopes.end(); scopes_it++) { - typename std::map<K, V>::const_iterator result_it = (*scopes_it).find(k); - if (result_it != (*scopes_it).end()) { - return (*result_it).second; - } - } - return NULL; - } - - // Adds a new entry in the current (topmost) scope. - void Add(K k, V v) { - scopes.front().erase(k); - scopes.front().insert(std::pair< K, V >(k, v)); - } - - // Removes the topmost scope. - bool CloseScope() { - // Added check to uniformly handle undefined behavior - // when removing scope and the list of scopes is empty. - if (scopes.size() > 0) { - scopes.pop_front(); - return true; - } - return false; - } - - private: - std::list<std::map<K, V>> scopes; -}; -} // namespace utils - -#endif // ART_COMPILER_UTILS_SCOPED_HASHTABLE_H_ |