/// <summary>
/// Creates a symbol parse node with the specified parse ID.
/// </summary>
/// <param name="id">A parse ID</param>
/// <param name="sym">A symbol entry</param>
public SymbolParseNode(ParseID id, Symbol sym)
: base(id)
{
Symbol = sym;
Type = sym.Type;
}
/// <summary>
/// Creates a binary parse node of the specified type.
/// </summary>
/// <param name="id">The ID of the operator</param>
public BinaryOpParseNode(ParseID id)
: base(id)
{
}
/// <summary>
/// Creates a parse node with the specified parse ID.
/// </summary>
/// <param name="id">A parse ID</param>
protected ParseNode(ParseID id)
{
ID = id;
}