public override bool VisitPrimary_expression([NotNull] calculatorParser.Primary_expressionContext context)
{
if (context.children != null)
{
foreach (var c in context.children)
{
if (!Visit(c))
{
Results[context] = false;
return(false);
}
}
}
if (context.ChildCount == 1)
{
bool lhs = Results[context.GetChild(0)];
Results[context] = lhs;
return(lhs);
}
if (context.ChildCount == 2 && context.GetChild(1) as calculatorParser.Method_invocation2Context != null)
{
bool res = false;
calculatorParser.Method_invocation2Context mi =
context.GetChild(1) as calculatorParser.Method_invocation2Context;
string fun = context.GetChild(0).GetText();
if (fun == "sin" ||
fun == "cos" ||
fun == "tan" ||
fun == "arcsin" ||
fun == "arccos" ||
fun == "arctan" ||
fun == "exp" ||
fun == "ln")
{
if (mi.ChildCount == 3)
{
bool rhs = Results[mi.GetChild(1)];
res = rhs;
Results[context] = res;
return(res);
}
else if (mi.ChildCount == 1)
{
bool rhs = Results[mi.GetChild(0)];
res = rhs;
Results[context] = res;
return(res);
}
}
}
{
Results[context] = false;
return(false);
}
}
public override Expression VisitPrimary_expression([NotNull] calculatorParser.Primary_expressionContext context)
{
if (context.children != null)
{
foreach (IParseTree c in context.children)
{
Visit(c);
}
}
if (_completeness.Results[context])
{
if (context.ChildCount == 1)
{
Expression lhs = Results[context.GetChild(0)];
Results[context] = lhs;
return(lhs);
}
if (context.ChildCount == 2 && context.GetChild(1) as calculatorParser.Method_invocation2Context != null)
{
calculatorParser.Method_invocation2Context mi =
context.GetChild(1) as calculatorParser.Method_invocation2Context;
string fun = context.GetChild(0).GetText();
if (fun == "Sin" ||
fun == "Cos" ||
fun == "Tan" ||
fun == "Asin" ||
fun == "Acos" ||
fun == "Atan"
)
{
Expression rhs = null;
if (mi.ChildCount == 3)
{
rhs = Results[mi.children[1]];
}
else if (mi.ChildCount == 1)
{
rhs = Results[mi.children[0]];
}
return(Expression.Call(typeof(Math).GetTypeInfo().GetDeclaredMethod(fun), rhs));
}
}
}
Results[context] = null;
return(null);
}
