private BigInteger EvaluateExpression(miranaParser.EnumFieldExpContext context)
{
if (context.enumFieldExp() == null)
{
return(EvaluateExpression(context.enumFieldExp1()));
}
else
{
BigInteger var1 = EvaluateExpression(context.enumFieldExp());
BigInteger var2 = EvaluateExpression(context.enumFieldExp1());
var op = context.operatorBitwise1();
int p = 0;
try {
p = (int)var2;
}
catch (OverflowException) {
compileUnit.AddError(context, 8, $"Cannot shift left of a value over 60.");
return(0);
}
if (p > 60)
{
compileUnit.AddError(context, 8, $"Cannot shift left of a value over 60.");
return(0);
}
if (op !.OpGreater() != null)
{
return(var1 << p);
}
private static bool IsSingleExpression(miranaParser.EnumFieldExpContext context)
{
if (context.enumFieldExp() != null)
{
return(false);
}
var c1 = context.enumFieldExp1();
if (c1.enumFieldExp1() != null)
{
return(false);
}
var c2 = c1.enumFieldExp2();
if (c2.enumFieldExp2() != null)
{
return(false);
}
var c3 = c2.enumFieldExp4();
if (c3.enumFieldExp4() != null)
{
return(false);
}
var c4 = c3.enumFieldExp5().enumFieldExpPrimary();
return(c4.integerNumber() != null || c4.enumField() != null);
}