private ArithmExprEvaluator GetArithmExpr()
{
var ret = new ArithmExprEvaluator();
ret.expr = GetAdditionSubtractionExpr();
return(ret);
}
public IfStatement(ArithmExprEvaluator e1, RelationEvalutator relOp, ArithmExprEvaluator e2, Queue <Statement> stat, Queue <Statement> elseStat)
{
expr1 = e1;
relationOp = relOp;
expr2 = e2;
statements = stat;
elseStatements = elseStat;
}
private ArithmExprEvaluator AcceptNestedArithmExpr()
{
if (Accept(TokenType.ParenthesisLeft))
{
ArithmExprEvaluator expr = GetArithmExpr();
Expect(TokenType.ParenthesisRight);
return(expr);
}
return(null);
}
public bool eval(ArithmExprEvaluator expr1, ArithmExprEvaluator expr2)
{
switch (relationOp)
{
case "==":
if (expr1.eval() == expr2.eval())
{
return(true);
}
break;
case "!=":
if (expr1.eval() != expr2.eval())
{
return(true);
}
break;
case ">=":
if (expr1.eval() >= expr2.eval())
{
return(true);
}
break;
case ">":
if (expr1.eval() > expr2.eval())
{
return(true);
}
break;
case "<=":
if (expr1.eval() <= expr2.eval())
{
return(true);
}
break;
case "<":
if (expr1.eval() < expr2.eval())
{
return(true);
}
break;
default:
throw new UnexpectedException("Bad relation operator! CRITICAL ERROR!!!");
}
return(false);
}
public AssignmentStatement(ValueEvaluator idd, ArithmExprEvaluator arguments)
{
ids = idd;
arithmeticExpression = arguments;
}
public ArithmValueEvaluator(ArithmExprEvaluator val)
{
simpleVal = null;
arithmVal = val;
}
