string getConstantFromSimpleExpression(Dictionary <string, string> input, SimpleExpression expr)
{
string result = NAC;
if (expr.GetType() == typeof(Int32Const))
{
result = (expr as Int32Const).ToString();
}
else if (expr.GetType() == typeof(Identifier))
{
string var = (expr as Identifier).ToString();
if (!input.ContainsKey(var))
{
input[var] = UNDEF;
}
result = input[var];
}
return(result);
}
