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From: "brian m. carlson" <sandals@crustytoothpaste.net>
To: Junio C Hamano <gitster@pobox.com>
Cc: git@vger.kernel.org, Elijah Newren <newren@gmail.com>,
	Stefan Beller <sbeller@google.com>, Jeff King <peff@peff.net>,
	Johannes Sixt <j6t@kdbg.org>
Subject: Re: [PATCH v3 06/11] diff: rename struct diff_filespec's sha1_valid member
Date: Sat, 25 Jun 2016 00:52:35 +0000	[thread overview]
Message-ID: <20160625005235.GB7035@vauxhall.crustytoothpaste.net> (raw)
In-Reply-To: <xmqqfus2dsbl.fsf@gitster.mtv.corp.google.com>

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On Fri, Jun 24, 2016 at 05:29:18PM -0700, Junio C Hamano wrote:
> "brian m. carlson" <sandals@crustytoothpaste.net> writes:
> 
> 
> > @@
> > struct diff_filespec o;
> > @@
> > - o.sha1_valid
> > + o.oid_valid
> >
> > @@
> > struct diff_filespec *p;
> > @@
> > - p->sha1_valid
> > + p->oid_valid
> 
> Totally offtopic (from Git's point of view), but why does Coccinelle
> need both of these?  I recall that between v1 and v2 there were some
> confusing discussions about the order of these equivalent conversions
> mattering and the tool producing an incorrect conversion in v1.

As I understand it, Coccinelle doesn't transform . into ->.  Granted,
the latter is a special case of the former, but it might break workflows
where you're trying to convert an inline struct to a pointer to struct
or such.  It errs on the side of you being more explicit to allow more
flexibility in usage.
-- 
brian m. carlson / brian with sandals: Houston, Texas, US
+1 832 623 2791 | https://www.crustytoothpaste.net/~bmc | My opinion only
OpenPGP: https://keybase.io/bk2204

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  reply	other threads:[~2016-06-25  0:52 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-24 23:09 [PATCH v3 00/11] struct object_id, Part 4 brian m. carlson
2016-06-24 23:09 ` [PATCH v3 01/11] hex: add oid_to_hex_r brian m. carlson
2016-06-24 23:09 ` [PATCH v3 02/11] contrib/coccinelle: add basic Coccinelle transforms brian m. carlson
2016-06-24 23:09 ` [PATCH v3 03/11] Convert hashcpy with null_sha1 to hashclr brian m. carlson
2016-06-24 23:09 ` [PATCH v3 04/11] coccinelle: apply object_id Coccinelle transformations brian m. carlson
2016-06-24 23:09 ` [PATCH v3 05/11] diff: convert struct diff_filespec to struct object_id brian m. carlson
2016-06-24 23:09 ` [PATCH v3 06/11] diff: rename struct diff_filespec's sha1_valid member brian m. carlson
2016-06-25  0:29   ` Junio C Hamano
2016-06-25  0:52     ` brian m. carlson [this message]
2016-06-24 23:09 ` [PATCH v3 07/11] merge-recursive: convert struct stage_data to use object_id brian m. carlson
2016-06-24 23:09 ` [PATCH v3 08/11] merge-recursive: convert struct merge_file_info to object_id brian m. carlson
2016-06-24 23:09 ` [PATCH v3 09/11] merge-recursive: convert leaf functions to use struct object_id brian m. carlson
2016-06-24 23:09 ` [PATCH v3 10/11] merge-recursive: convert merge_recursive_generic to object_id brian m. carlson
2016-06-24 23:09 ` [PATCH v3 11/11] diff: convert prep_temp_blob to struct object_id brian m. carlson

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