public int evaluate(Utilities.IDictionary <string, int> dic)
{
int left = this.left.evaluate(dic);
int right = this.right.evaluate(dic);
switch (oper)
{
case "+":
return(left + right);
case "-":
return(left - right);
case "*":
return(left * right);
case "/":
if (right == 0)
{
throw new DivisionByZero("Division by 0 is not allowed!");
}
return(left / right);
}
throw new InvalidOperator("Invalid operator!");
}
public ProgramState(IStack <IStmt> stack, Utilities.IDictionary <string, int> symTable, Utilities.IList <int> list, Utilities.IDictionary <int, StreamReader> file)
{
this.stack = stack;
this.SymTable = symTable;
this.list = list;
this.FileTable = file;
}
public int evaluate(Utilities.IDictionary <string, int> dic)
{
return(number);
}
public int evaluate(Utilities.IDictionary <string, int> dic)
{
return(dic.getValue(id));
}
