public override object Walk(ConditionalExpression node)
{
var cond = node.Condition.Accept(this);
return(InterpreterHelper.IsTrue(cond)
? node.TrueExpression.Accept(this)
: node.FalseExpression.Accept(this));
}
public override object Walk(IfStatement node)
{
var cond = node.Condition.Accept(this);
if (InterpreterHelper.IsTrue(cond))
{
return(node.Body.Accept(this));
}
return(node.Else != null?node.Else.Accept(this) : null);
}
public override object Walk(WhileStatement node)
{
object result = null;
while (InterpreterHelper.IsTrue(node.Condition.Accept(this)))
{
try
{
result = node.Body.Accept(this);
}
catch (Break)
{
break;
}
catch (Next)
{
continue;
}
}
return(result);
}
public BikeBoolean OpNot(object value)
{
return(new BikeBoolean(!InterpreterHelper.IsTrue(value)));
}
public object OpOr(object lv, Func <object> rvThunk)
{
return(InterpreterHelper.IsTrue(lv) ? lv : rvThunk());
}
public object OpAnd(object lv, Func <object> rvThunk)
{
return(InterpreterHelper.IsTrue(lv) ? rvThunk() : lv);
}