private void InsertVarEntry(string Lexeme, Symbol Token, int Depth)
{
var varEntry = new VarEntry()
{
Lexeme = Lexeme,
Token = Token,
Depth = Depth,
TypeOfEntry = EntryType.variableEntry,
};
var position = Hash(Lexeme);
if (tableEntries[position] == null)
{
tableEntries[position] = new LinkedList <TableEntry>();
tableEntries[position].AddFirst(varEntry);
}
else if (tableEntries[position].First != null && tableEntries[position].First.Value.Lexeme == Lexeme && tableEntries[position].First.Value.Depth == Depth)
{
Console.Write("Error at Line " + LexAnalyzer.LineNo + " : \"" + Lexeme + "\" is already defined. Press any key to exit....");
Console.ReadKey();
Environment.Exit(-1);
}
else
{
tableEntries[position].AddFirst(varEntry);
}
}
public void Insert(string Lexeme, Symbol Token, int Depth, EntryType TypeOfEntry)
{
switch (TypeOfEntry)
{
case EntryType.classEntry: InsertClassEntry(Lexeme, Token, Depth); break;
case EntryType.constEntry: InsertConstEntry(Lexeme, Token, Depth); break;
case EntryType.functionEntry: InsertFuncEntry(Lexeme, Token, Depth); break;
case EntryType.variableEntry: InsertVarEntry(Lexeme, Token, Depth); break;
default: Console.WriteLine("Error! Cannot insert into the symbol table"); break;
}
}