static MyStringId()
{
m_idByString = new Dictionary <string, MyStringId>(50);
m_stringById = new Dictionary <MyStringId, string>(50, Comparer);
NullOrEmpty = GetOrCompute("");
Debug.Assert(NullOrEmpty == default(MyStringId));
Debug.Assert(NullOrEmpty.m_id == MyUtils.GetHash(null, 0));
Debug.Assert(NullOrEmpty.m_id == MyUtils.GetHash("", 0));
}
static MyStringHash()
{
m_lock = new FastResourceLock();
m_stringToHash = new Dictionary <string, MyStringHash>(50);
m_hashToString = new Dictionary <MyStringHash, string>(50, Comparer);
NullOrEmpty = GetOrCompute("");
Debug.Assert(NullOrEmpty == default(MyStringHash));
Debug.Assert(NullOrEmpty.m_hash == MyUtils.GetHash(null, 0));
Debug.Assert(NullOrEmpty.m_hash == MyUtils.GetHash("", 0));
}
public static MyStringId GetOrCompute(string str)
{
MyStringId result;
if (str == null)
{
result = NullOrEmpty;
}
else if (!m_idByString.TryGetValue(str, out result))
{
result = new MyStringId(MyUtils.GetHash(str, 0));
m_stringById.Add(result, str);
m_idByString.Add(str, result);
}
return(result);
}
public static MyStringHash GetOrCompute(string str)
{
MyStringHash result;
using (m_lock.AcquireExclusiveUsing())
{
if (str == null)
{
result = NullOrEmpty;
}
else if (!m_stringToHash.TryGetValue(str, out result))
{
result = new MyStringHash(MyUtils.GetHash(str, 0));
m_hashToString.Add(result, str);
m_stringToHash.Add(str, result);
}
}
return(result);
}