/// <summary>
/// Adds the specified symbol to the symbol table and files an error (E0001)
/// if the symbol is already defined.
/// </summary>
/// <param name="name">The symbol name</param>
/// <param name="value">The value</param>
/// <param name="line">The Line in the source code, used for filing errors</param>
/// <param name="column">The Column in the source code, used for filing errors</param>
/// <param name="isLabel">Indicates whether the symbol is an Instruction label</param>
protected void AddSymbol(string name, int value, int line, int column, bool isLabel)
{
try
{
Symbols.Add(name, value);
DebugInformation.AddSymbol(Filename, line, name, value, isLabel);
}
catch (ArgumentException)
{
Error e = new Error();
e.ID = 1;
e.Line = line;
e.Column = column;
e.Description = string.Format(Messages.E0001, name);
Errors.Add(e);
}
}
