public override Expression VisitBoolean_literal([NotNull] calculatorParser.Boolean_literalContext context)
{
if (context.children != null)
{
foreach (IParseTree c in context.children)
{
Visit(c);
}
}
var child = context.children[0];
if (!(child is TerminalNodeImpl))
{
return(null);
}
try
{
string str = context.GetText();
bool val = Convert.ToBoolean(str);
Expression result = Expression.Constant(val, typeof(bool));
Results[context] = result;
return(result);
}
catch (Exception)
{
}
return(null);
}
public override bool VisitBoolean_literal([NotNull] calculatorParser.Boolean_literalContext context)
{
if (context.children != null)
{
foreach (var c in context.children)
{
if (!Visit(c))
{
Results[context] = false;
return(false);
}
}
}
Results[context] = true;
return(true);
}
