public void TreeExtensionVisitor_SwitchSet()
{
Expression<Func<RailwayContainer, IEnumerableExpression<SwitchPosition>>> func =
rc =>
from route in rc.Routes
where route.Entry != null && route.Entry.Signal == Signal.GO
from swP in route.Follows.OfType<SwitchPosition>()
where swP.Switch.CurrentPosition != swP.Position
select swP;
var visitor = new TreeExtensionExpressionVisitor();
var visited = visitor.Visit(func.Body);
Assert.AreSame(func.Body, visited);
var parameters = visitor.ListParameters();
Assert.AreEqual(1, parameters.Count);
CollectionAssert.Contains(parameters, func.Parameters[0]);
}
public void TreeExtensionVisitor_SwitchSet()
{
Expression <Func <RailwayContainer, IEnumerableExpression <SwitchPosition> > > func =
rc =>
from route in rc.Routes
where route.Entry != null && route.Entry.Signal == Signal.GO
from swP in route.Follows.OfType <SwitchPosition>()
where swP.Switch.CurrentPosition != swP.Position
select swP;
var visitor = new TreeExtensionExpressionVisitor();
var visited = visitor.Visit(func.Body);
Assert.AreSame(func.Body, visited);
var parameters = visitor.ListParameters();
Assert.AreEqual(1, parameters.Count);
CollectionAssert.Contains(parameters, func.Parameters[0]);
}