public void ExpressionTupletizer_IsTuple()
{
AssertEx.ThrowsException <ArgumentNullException>(() => ExpressionTupletizer.IsTuple(type: null), ex => Assert.AreEqual("type", ex.ParamName));
foreach (var t in new[] {
typeof(Tuple <int>),
typeof(Tuple <int, int>),
typeof(Tuple <int, int, int>),
typeof(Tuple <int, int, int, int>),
typeof(Tuple <int, int, int, int, int>),
typeof(Tuple <int, int, int, int, int, int>),
typeof(Tuple <int, int, int, int, int, int, int>),
typeof(Tuple <int, int, int, int, int, int, int, Tuple <int> >),
typeof(Tuple <int, int, int, int, int, int, int, Tuple <int, int> >),
typeof(Tuple <int, int, int, int, int, int, int, Tuple <int, int, int, int, int, int, int, Tuple <int, int, int> > >),
})
{
Assert.IsTrue(IsTuple(t));
}
foreach (var t in new[] {
typeof(int),
typeof(List <int>),
typeof(Tuple <>),
typeof(Tuple <,>),
typeof(Tuple <int, int, int, int, int, int, int, /*TRest*/ int>),
})
{
Assert.IsFalse(IsTuple(t));
}
}
private static bool IsTuple(Expression expression)
{
if (expression.NodeType == ExpressionType.New)
{
// TODO: All of this code really should move up, closer to where we know we're using tuples.
if (ExpressionTupletizer.IsTuple(expression.Type))
{
return(true);
}
}
return(false);
}
private static bool IsTuple(Type type)
{
return(ExpressionTupletizer.IsTuple(type));
}