private static void TestTuple(Xtensive.Tuples.Tuple tuple)
{
Assert.IsFalse(tuple.GetFieldState(0).IsAvailable());
try {
tuple.GetFieldState(0).IsNull();
throw new AssertionException("Value is not available. No one knows if it is null or not.");
} catch (InvalidOperationException) {
}
tuple.SetValue(0, 1);
Assert.IsTrue(tuple.GetFieldState(0).IsAvailable());
Assert.IsFalse(tuple.GetFieldState(0).IsNull());
Assert.IsTrue(tuple.GetFieldState(0).HasValue());
Assert.AreEqual(1, tuple.GetValue(0));
Assert.AreEqual(1, tuple.GetValue <int>(0));
Assert.AreEqual(new int?(1), tuple.GetValue <int?>(0));
tuple.SetValue(0, null);
Assert.IsTrue(tuple.GetFieldState(0).IsAvailable());
Assert.IsTrue(tuple.GetFieldState(0).IsNull());
Assert.IsFalse(tuple.GetFieldState(0).HasValue());
Assert.AreEqual(null, tuple.GetValue(0));
Assert.AreEqual(null, tuple.GetValue <int?>(0));
tuple.SetValue <int?>(0, null);
Assert.IsTrue(tuple.GetFieldState(0).IsAvailable());
Assert.IsTrue(tuple.GetFieldState(0).IsNull());
Assert.IsFalse(tuple.GetFieldState(0).HasValue());
Assert.AreEqual(null, tuple.GetValue(0));
Assert.AreEqual(null, tuple.GetValue <int?>(0));
Assert.AreEqual(null, tuple.GetValueOrDefault(0));
Assert.AreEqual(null, tuple.GetValueOrDefault <int?>(0));
try {
tuple.GetValue(1);
throw new AssertionException("Value should not be available.");
} catch (InvalidOperationException) {
}
try {
tuple.GetValue <string>(2);
throw new AssertionException("Value should not be available.");
} catch (InvalidOperationException) {
}
try {
tuple.GetValue <byte>(0);
throw new AssertionException("Null reference or Invalid cast exception should be thrown.");
}
catch (NullReferenceException) {}
catch (InvalidCastException) {}
Assert.IsTrue(tuple.Equals(tuple));
}
public static int ExtractTypeId(TypeInfo type, TypeIdRegistry typeIdRegistry, Tuple tuple, int typeIdIndex, out TypeReferenceAccuracy accuracy)
{
accuracy = TypeReferenceAccuracy.Hierarchy;
if (type.IsInterface)
{
accuracy = TypeReferenceAccuracy.BaseType;
}
if (typeIdIndex < 0)
{
if (type.IsLeaf)
{
accuracy = TypeReferenceAccuracy.ExactType;
}
return(typeIdRegistry.GetTypeId(type));
}
accuracy = TypeReferenceAccuracy.ExactType;
TupleFieldState state;
var value = tuple.GetValue <int>(typeIdIndex, out state);
if (type.IsLeaf)
{
return(state.HasValue() ? typeIdRegistry.GetTypeId(type) : TypeInfo.NoTypeId);
}
// Hack here: 0 (default) = TypeInfo.NoTypeId
return(value);
}
public void ProfileIntFieldAccessTest()
{
const int iterationCount = 10000000;
TupleDescriptor descriptor = TupleDescriptor.Create(shortFieldTypes);
Tuple tuple = Tuple.Create(descriptor);
using (new Measurement("Tuple.SetValue", iterationCount))
for (int i = 0; i < iterationCount; i++)
{
tuple.SetValue(0, (object)i);
}
using (new Measurement("Tuple.GetValue(_,_)", iterationCount))
for (int i = 0; i < iterationCount; i++)
{
TupleFieldState state;
tuple.GetValue(0, out state);
}
using (new Measurement("Tuple.SetValue<T>", iterationCount))
for (int i = 0; i < iterationCount; i++)
{
tuple.SetValue(0, i);
}
using (new Measurement("Tuple.SetValue<T?>", iterationCount))
for (int i = 0; i < iterationCount; i++)
{
tuple.SetValue <int?>(0, i);
}
using (new Measurement("Tuple.GetValue<T>", iterationCount))
for (int i = 0; i < iterationCount; i++)
{
tuple.GetValue <int>(0);
}
using (new Measurement("Tuple.GetValue<T>(_,_)", iterationCount))
for (int i = 0; i < iterationCount; i++)
{
TupleFieldState state;
tuple.GetValue <int>(0, out state);
}
using (new Measurement("Tuple.GetValue<T?>(_,_)", iterationCount))
for (int i = 0; i < iterationCount; i++)
{
TupleFieldState state;
tuple.GetValue <int?>(0, out state);
}
}
public void ProfileGuidFieldAccessTest()
{
const int iterationCount = 10000000;
TupleDescriptor descriptor = TupleDescriptor.Create <Guid>();
Tuple tuple = Tuple.Create(descriptor);
using (new Measurement("Tuple.SetValue", iterationCount))
for (int i = 0; i < iterationCount; i++)
{
tuple.SetValue(0, Guid.Empty);
}
using (new Measurement("Tuple.GetValue(_,_)", iterationCount))
for (int i = 0; i < iterationCount; i++)
{
TupleFieldState state;
tuple.GetValue(0, out state);
}
using (new Measurement("Tuple.SetValue<T>", iterationCount))
for (int i = 0; i < iterationCount; i++)
{
tuple.SetValue(0, Guid.Empty);
}
using (new Measurement("Tuple.SetValue<T?>", iterationCount))
for (int i = 0; i < iterationCount; i++)
{
tuple.SetValue <Guid?>(0, Guid.Empty);
}
using (new Measurement("Tuple.GetValue<T>", iterationCount))
for (int i = 0; i < iterationCount; i++)
{
tuple.GetValue <Guid>(0);
}
using (new Measurement("Tuple.GetValue<T>(_,_)", iterationCount))
for (int i = 0; i < iterationCount; i++)
{
TupleFieldState state;
tuple.GetValue <Guid>(0, out state);
}
using (new Measurement("Tuple.GetValue<T?>(_,_)", iterationCount))
for (int i = 0; i < iterationCount; i++)
{
TupleFieldState state;
tuple.GetValue <Guid?>(0, out state);
}
}
private static void CopyValue(Tuple source, int sourceIndex, Tuple target, int targetIndex)
{
TupleFieldState fieldState;
var value = source.GetValue(sourceIndex, out fieldState);
if (!fieldState.IsAvailable())
{
return;
}
target.SetValue(targetIndex, fieldState.IsAvailableAndNull() ? null : value);
}
// Constructors
/// <summary>
/// Initializes new instance of this type.
/// </summary>
/// <param name="source">The tuple to create the fast read-only tuple from.</param>
public FastReadOnlyTuple(Tuple source)
{
descriptor = source.Descriptor;
int count = descriptor.Count;
values = new object[count];
states = new TupleFieldState[count];
for (int i = 0; i < count; i++)
{
TupleFieldState state;
values[i] = source.GetValue(i, out state);
states[i] = state;
}
}
/// <inheritdoc/>
public override object GetValue(int fieldIndex, out TupleFieldState fieldState)
{
return(InnerTuple.GetValue(fieldIndex, out fieldState));
}