public void NullNodesCallVisitNullNode()
{
foreach (Type type in typeof(AstNode).Assembly.GetExportedTypes()) {
if (type.IsSubclassOf(typeof(AstNode))) {
var nullField = type.GetField("Null");
if (nullField != null) {
AstNode nullNode = (AstNode)nullField.GetValue(null);
Assert.IsTrue(nullNode.IsNull, nullNode.GetType().Name + " should be a null node");
var v1 = new VisitNullNodeTest();
var v2 = new VisitNullNodeTest<string>();
var v3 = new VisitNullNodeTest<string, string>();
nullNode.AcceptVisitor(v1);
nullNode.AcceptVisitor(v2);
nullNode.AcceptVisitor(v3, null);
Assert.IsTrue(v1.called, nullNode.GetType().Name + " should call 'void VisitNullNode();'");
Assert.IsTrue(v2.called, nullNode.GetType().Name + " should call 'T VisitNullNode();'");
Assert.IsTrue(v3.called, nullNode.GetType().Name + " should call 'S VisitNullNode(T data);'");
}
}
}
}
public void NullNodesCallVisitNullNode()
{
foreach (Type type in typeof(AstNode).Assembly.GetExportedTypes())
{
if (type.IsSubclassOf(typeof(AstNode)))
{
var nullField = type.GetField("Null");
if (nullField != null)
{
AstNode nullNode = (AstNode)nullField.GetValue(null);
Assert.IsTrue(nullNode.IsNull, nullNode.GetType().Name + " should be a null node");
var v1 = new VisitNullNodeTest();
var v2 = new VisitNullNodeTest <string>();
var v3 = new VisitNullNodeTest <string, string>();
nullNode.AcceptVisitor(v1);
nullNode.AcceptVisitor(v2);
nullNode.AcceptVisitor(v3, null);
Assert.IsTrue(v1.called, nullNode.GetType().Name + " should call 'void VisitNullNode();'");
Assert.IsTrue(v2.called, nullNode.GetType().Name + " should call 'T VisitNullNode();'");
Assert.IsTrue(v3.called, nullNode.GetType().Name + " should call 'S VisitNullNode(T data);'");
}
}
}
}
