public void TupleKeyInfoHelper_KeyFactoryLarge()
{
TupleKeyInfoHelper builder =
new TupleKeyInfoHelper(typeof(Tuple<int, int, int, int, int, int, int, Tuple<int, int>>));
Expression factory = builder.CreateKeyFactoryExpression(
Enumerable
.Range(1, 9)
.Select(x => Expression.Constant(x, typeof(int)))
.ToArray());
var result = Expression.Lambda(factory).Compile().DynamicInvoke()
as Tuple<int, int, int, int, int, int, int, Tuple<int, int>>;
Assert.IsNotNull(result);
Assert.AreEqual(1, result.Item1);
Assert.AreEqual(2, result.Item2);
Assert.AreEqual(8, result.Rest.Item1);
Assert.AreEqual(9, result.Rest.Item2);
}
private static Expression CreateTupleSelector(
Expression body,
Expression[] memberSelectors)
{
Type[] memberTypes = memberSelectors.Select(e => e.Type).ToArray();
Type tupleType = TupleTypeHelper.CreateTupleType(memberTypes);
var helper = new TupleKeyInfoHelper(tupleType);
body = helper.CreateKeyFactoryExpression(memberSelectors);
return body;
}
public void TupleKeyInfoHelper_KeyFactory()
{
TupleKeyInfoHelper builder = new TupleKeyInfoHelper(typeof(Tuple<int, string>));
Expression factory = builder.CreateKeyFactoryExpression(
Expression.Constant(1, typeof(int)),
Expression.Constant("2", typeof(string)));
var result = Expression.Lambda(factory).Compile().DynamicInvoke() as Tuple<int, string>;
Assert.IsNotNull(result);
Assert.AreEqual(1, result.Item1);
Assert.AreEqual("2", result.Item2);
}