static ItemIndexExpression()
{
var zero = Constant(0);
First = new ItemIndexExpression(zero);
Last = new ItemIndexExpression(zero, true);
}
private static Expression MakeIndex(Expression collection, PropertyInfo count, Expression index) => ItemIndexExpression.GetOffset(index, Property(collection, count));
private static Expression ArrayAccess(Expression array, Expression index) => ArrayIndex(array, ItemIndexExpression.GetOffset(index, ArrayLength(array)));