/// <summary>
/// Compute a hash code for the current object.
/// </summary>
/// <returns>A hash code for the current object.</returns>
public override int GetHashCode()
{
if (_hash == -1)
{
int hash = 0;
for (int i = 0; i < count(); i++)
{
hash = Util.HashCombine(hash, Util.Hash(nth(i)));
}
this._hash = hash;
}
return(_hash);
}
/// <summary>
/// Get the hash code for the current object.
/// </summary>
/// <returns>The hash code.</returns>
/// <remarks>Result is cached.</remarks>
public override int GetHashCode()
{
if (_hash == -1)
{
int hash = 0;
for (ISeq s = seq(); s != null; s = s.next())
{
hash = Util.HashCombine(hash, Util.Hash(s.first()));
}
_hash = hash;
}
return(_hash);
}
/// <summary>
/// Compute the hash code for the symbol.
/// </summary>
/// <returns>The hash code.</returns>
private int ComputeHashCode()
{
return(Util.HashCombine(_name.GetHashCode(), Util.Hash(_ns)));
}