From: Junio C Hamano <gitster@pobox.com>
Date: Tue, 30 Apr 2013 18:08:56 GMT
Subject: Re: [PATCH] refs.c: interpret @ as HEAD
Message-ID: <7vwqrjdh6v.fsf@alter.siamese.dyndns.org>
In-Reply-To: <CALkWK0kLZ9WLVcPBWuQZCjOku4A+WQ7=YeooPmKGpk9HuGYQnw@mail.gmail.com>

Ramkumar Ramachandra <artagnon@gmail.com> writes:

> Felipe Contreras wrote:
>> Why would HEAD^0^0~4 work? Because the syntax is recursive.
>
> That's because you can compose with ^ and ^, while you can't with @
> and @.  Does @{0}@{0} resolve?

@{-1}@{0} does.  That means @{0} is a revision and not a ref, but @{-1}
is.

'"@" given alone' has to be a ref if we want @@{5.minutes.ago} to
resolve.