internal void MarkAsUsed(Symbol key)
{
if (optionalColumnUsage.ContainsKey(key))
{
optionalColumnUsage[key].Value = true;
}
}
internal void Add(Symbol sourceSymbol, Symbol symbolToAdd)
{
BoolWrapper wrapper;
if (sourceSymbol == null
|| !optionalColumnUsage.TryGetValue(sourceSymbol, out wrapper))
{
wrapper = new BoolWrapper();
}
optionalColumnUsage.Add(symbolToAdd, wrapper);
}
internal bool TryGetValue(Symbol key, out bool value)
{
BoolWrapper wrapper;
if (optionalColumnUsage.TryGetValue(key, out wrapper))
{
value = wrapper.Value;
return true;
}
value = false;
return false;
}
public SymbolPair(Symbol source, Symbol column)
{
Source = source;
Column = column;
}
internal bool IsUsed(Symbol key)
{
return optionalColumnUsage[key].Value;
}
internal bool ContainsKey(Symbol key)
{
return optionalColumnUsage.ContainsKey(key);
}
internal void Add(string name, Symbol value)
{
symbols[symbols.Count - 1][name] = value;
}