/// <summary>
/// Takes the base items of a Table Entry, hashes and insert it into the symbol table
/// </summary>
/// <param name="lexeme"></param>
/// <param name="symbol"></param>
/// <param name="depth"></param>
public void insert(string lexeme, Globals.Symbol symbol, int depth)
{
TableEntry found = lookup(lexeme);
if (found == null)
{
LinkedList <TableEntry> lexemeList = new LinkedList <TableEntry>();
lexemeList.AddFirst(new VariableEntry()
{
lexeme = lexeme,
tokenType = symbol,
depth = depth,
variableType = TableEntry.VariableType.intType,
Offset = 0,
size = 4
});
table.Add(hash(lexeme), lexemeList);
}
else if (found != null)
{
table[hash(lexeme)].AddFirst(new VariableEntry()
{
lexeme = lexeme,
tokenType = symbol,
depth = depth,
variableType = TableEntry.VariableType.intType,
Offset = 0,
size = 4
});
}
}
/// <summary>
/// Match() Matches the current token to which is expected in the grammar
/// </summary>
/// <param name="token"></param>
private void Match(Globals.Symbol token)
{
if (token == Globals.Token)
{
l.GetNextToken();
}
else
{
Console.WriteLine($"Error: Line {Globals.LineNumber+1}: Expecting {token.ToString()}. Received {Globals.Token.ToString()}");
Environment.Exit(-1);
}
}
