2018-10-10 09:53:07 +00:00
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#pragma once
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#include "HashTable.h"
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2018-10-17 08:55:43 +00:00
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#include "StdLib.h"
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#include "kstdio.h"
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2018-10-10 09:53:07 +00:00
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namespace AK {
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template<typename K, typename V>
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class HashMap {
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private:
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struct Entry {
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K key;
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V value;
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bool operator==(const Entry& other)
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{
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return key == other.key;
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}
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};
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struct EntryTraits {
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static unsigned hash(const Entry& entry) { return Traits<K>::hash(entry.key); }
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static void dump(const Entry& entry)
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{
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2018-10-17 08:55:43 +00:00
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kprintf("key=");
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2018-10-10 09:53:07 +00:00
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Traits<K>::dump(entry.key);
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2018-10-17 08:55:43 +00:00
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kprintf(" value=");
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2018-10-10 09:53:07 +00:00
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Traits<V>::dump(entry.value);
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}
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};
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public:
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HashMap() { }
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HashMap(HashMap&& other)
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2018-10-17 08:55:43 +00:00
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: m_table(move(other.m_table))
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2018-10-10 09:53:07 +00:00
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{
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}
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HashMap& operator=(HashMap&& other)
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{
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if (this != &other) {
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2018-10-17 08:55:43 +00:00
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m_table = move(other.m_table);
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2018-10-10 09:53:07 +00:00
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}
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return *this;
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}
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bool isEmpty() const { return m_table.isEmpty(); }
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unsigned size() const { return m_table.size(); }
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unsigned capacity() const { return m_table.capacity(); }
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2018-10-25 10:35:49 +00:00
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void clear() { m_table.clear(); }
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2018-10-10 09:53:07 +00:00
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2018-10-25 10:35:49 +00:00
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void set(const K&, const V&);
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2018-10-10 09:53:07 +00:00
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void set(const K&, V&&);
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2018-10-13 12:23:47 +00:00
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void remove(const K&);
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2018-10-25 10:35:49 +00:00
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void removeOneRandomly() { m_table.remove(m_table.begin()); }
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2018-10-10 09:53:07 +00:00
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typedef HashTable<Entry, EntryTraits> HashTableType;
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typedef typename HashTableType::Iterator IteratorType;
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typedef typename HashTableType::ConstIterator ConstIteratorType;
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IteratorType begin() { return m_table.begin(); }
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IteratorType end() { return m_table.end(); }
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IteratorType find(const K&);
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ConstIteratorType begin() const { return m_table.begin(); }
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ConstIteratorType end() const { return m_table.end(); }
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ConstIteratorType find(const K&) const;
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void dump() const { m_table.dump(); }
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private:
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HashTable<Entry, EntryTraits> m_table;
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};
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template<typename K, typename V>
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void HashMap<K, V>::set(const K& key, V&& value)
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{
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2018-10-17 08:55:43 +00:00
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m_table.set(Entry{key, move(value)});
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2018-10-10 09:53:07 +00:00
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}
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2018-10-25 10:35:49 +00:00
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template<typename K, typename V>
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void HashMap<K, V>::set(const K& key, const V& value)
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{
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m_table.set(Entry{key, value});
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}
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2018-10-13 12:23:47 +00:00
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template<typename K, typename V>
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void HashMap<K, V>::remove(const K& key)
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{
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Entry dummy { key, V() };
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m_table.remove(dummy);
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}
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2018-10-10 09:53:07 +00:00
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template<typename K, typename V>
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auto HashMap<K, V>::find(const K& key) -> IteratorType
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{
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Entry dummy { key, V() };
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return m_table.find(dummy);
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}
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template<typename K, typename V>
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auto HashMap<K, V>::find(const K& key) const -> ConstIteratorType
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{
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Entry dummy { key, V() };
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return m_table.find(dummy);
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}
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}
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using AK::HashMap;
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