From: Phillip Wood <phillip.wood123@gmail•com>
To: Ezekiel Newren via GitGitGadget <gitgitgadget@gmail•com>,
git@vger•kernel.org
Cc: Elijah Newren <newren@gmail•com>,
Ben Knoble <ben.knoble@gmail•com>,
Ezekiel Newren <ezekielnewren@gmail•com>
Subject: Re: [PATCH v3 04/10] xdiff: delete xdl_get_rec() in xemit
Date: Sun, 21 Sep 2025 14:06:10 +0100 [thread overview]
Message-ID: <cd39a321-a6c4-4126-a716-dc0b0cffa68d@gmail.com> (raw)
In-Reply-To: <ddfee67e06bb56cfa8f11187dc27135bfce63647.1758294992.git.gitgitgadget@gmail.com>
Hi Ezekiel
On 19/09/2025 16:16, Ezekiel Newren via GitGitGadget wrote:
> From: Ezekiel Newren <ezekielnewren@gmail•com>
>
> This function aliases the fields of xrecord_t, which makes it harder
> to track the usages of those fields. Delete it.
Patch 6 goes the other way and introduces a getter function that hides
the field accesses so I'm not sure why this one is so bad that it needs
to be removed.
Thanks
Phillip
> Signed-off-by: Ezekiel Newren <ezekielnewren@gmail•com>
> ---
> xdiff/xemit.c | 38 +++++++++++++-------------------------
> 1 file changed, 13 insertions(+), 25 deletions(-)
>
> diff --git a/xdiff/xemit.c b/xdiff/xemit.c
> index 1d40c9cb40..b3793e81e2 100644
> --- a/xdiff/xemit.c
> +++ b/xdiff/xemit.c
> @@ -22,21 +22,11 @@
>
> #include "xinclude.h"
>
> -static long xdl_get_rec(xdfile_t *xdf, long ri, char const **rec) {
> -
> - *rec = xdf->recs[ri]->ptr;
> -
> - return xdf->recs[ri]->size;
> -}
> -
> -
> -static int xdl_emit_record(xdfile_t *xdf, long ri, char const *pre, xdemitcb_t *ecb) {
> - long size, psize = strlen(pre);
> - char const *rec;
> -
> - size = xdl_get_rec(xdf, ri, &rec);
> - if (xdl_emit_diffrec(rec, size, pre, psize, ecb) < 0) {
> +static int xdl_emit_record(xdfile_t *xdf, long ri, char const *pre, xdemitcb_t *ecb)
> +{
> + xrecord_t *rec = xdf->recs[ri];
>
> + if (xdl_emit_diffrec(rec->ptr, rec->size, pre, strlen(pre), ecb) < 0) {
> return -1;
> }
>
> @@ -120,11 +110,11 @@ static long def_ff(const char *rec, long len, char *buf, long sz)
> static long match_func_rec(xdfile_t *xdf, xdemitconf_t const *xecfg, long ri,
> char *buf, long sz)
> {
> - const char *rec;
> - long len = xdl_get_rec(xdf, ri, &rec);
> + xrecord_t *rec = xdf->recs[ri];
> +
> if (!xecfg->find_func)
> - return def_ff(rec, len, buf, sz);
> - return xecfg->find_func(rec, len, buf, sz, xecfg->find_func_priv);
> + return def_ff(rec->ptr, rec->size, buf, sz);
> + return xecfg->find_func(rec->ptr, rec->size, buf, sz, xecfg->find_func_priv);
> }
>
> static int is_func_rec(xdfile_t *xdf, xdemitconf_t const *xecfg, long ri)
> @@ -160,14 +150,12 @@ static long get_func_line(xdfenv_t *xe, xdemitconf_t const *xecfg,
>
> static int is_empty_rec(xdfile_t *xdf, long ri)
> {
> - const char *rec;
> - long len = xdl_get_rec(xdf, ri, &rec);
> + xrecord_t *rec = xdf->recs[ri];
> + long i = 0;
>
> - while (len > 0 && XDL_ISSPACE(*rec)) {
> - rec++;
> - len--;
> - }
> - return !len;
> + for (; i < rec->size && XDL_ISSPACE(rec->ptr[i]); i++);
> +
> + return i == rec->size;
> }
>
> int xdl_emit_diff(xdfenv_t *xe, xdchange_t *xscr, xdemitcb_t *ecb,
next prev parent reply other threads:[~2025-09-21 13:06 UTC|newest]
Thread overview: 158+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-07 19:45 [PATCH 00/17] Use rust types in xdiff Ezekiel Newren via GitGitGadget
2025-09-07 19:45 ` [PATCH 01/17] xdiff: delete static forward declarations in xprepare Ezekiel Newren via GitGitGadget
2025-09-09 8:55 ` Elijah Newren
2025-09-07 19:45 ` [PATCH 02/17] xdiff: delete local variables and initialize/free xdfile_t directly Ezekiel Newren via GitGitGadget
2025-09-09 8:56 ` Elijah Newren
2025-09-07 19:45 ` [PATCH 03/17] xdiff: delete unnecessary fields from xrecord_t and xdfile_t Ezekiel Newren via GitGitGadget
2025-09-09 8:56 ` Elijah Newren
2025-09-07 19:45 ` [PATCH 04/17] xdiff: delete xdl_get_rec() in xemit Ezekiel Newren via GitGitGadget
2025-09-09 8:56 ` Elijah Newren
2025-09-07 19:45 ` [PATCH 05/17] xdiff: delete struct diffdata_t Ezekiel Newren via GitGitGadget
2025-09-09 8:56 ` Elijah Newren
2025-09-07 19:45 ` [PATCH 06/17] xdiff: delete redundant array xdfile_t.ha Ezekiel Newren via GitGitGadget
2025-09-09 8:57 ` Elijah Newren
2025-09-07 19:45 ` [PATCH 07/17] xdiff: delete fields ha, line, size in xdlclass_t in favor of an xrecord_t Ezekiel Newren via GitGitGadget
2025-09-09 8:57 ` Elijah Newren
2025-09-07 19:45 ` [PATCH 08/17] xdiff: delete chastore from xdfile_t, view with --color-words Ezekiel Newren via GitGitGadget
2025-09-09 8:58 ` Elijah Newren
2025-09-09 13:50 ` Phillip Wood
2025-09-09 20:33 ` Junio C Hamano
2025-09-10 22:02 ` Ben Knoble
2025-09-07 19:45 ` [PATCH 09/17] xdiff: treat xdfile_t.rchg like an enum Ezekiel Newren via GitGitGadget
2025-09-09 8:58 ` Elijah Newren
2025-09-07 19:45 ` [PATCH 10/17] compat/rust_types.h: define rust primitive types Ezekiel Newren via GitGitGadget
2025-09-08 15:08 ` Junio C Hamano
2025-09-08 16:15 ` Ezekiel Newren
2025-09-07 19:45 ` [PATCH 11/17] xdiff: include compat/rust_types.h Ezekiel Newren via GitGitGadget
2025-09-07 19:45 ` [PATCH 12/17] xdiff: make xrecord_t.ptr a u8 instead of char Ezekiel Newren via GitGitGadget
2025-09-07 19:45 ` [PATCH 13/17] xdiff: make xrecord_t.size a usize instead of long Ezekiel Newren via GitGitGadget
2025-09-07 19:45 ` [PATCH 14/17] xdiff: split xrecord_t.ha into line_hash and minimal_perfect_hash Ezekiel Newren via GitGitGadget
2025-09-07 19:45 ` [PATCH 15/17] xdiff: make xdfile_t.nrec a usize instead of long Ezekiel Newren via GitGitGadget
2025-09-07 19:45 ` [PATCH 16/17] xdiff: make xdfile_t.nreff " Ezekiel Newren via GitGitGadget
2025-09-07 19:45 ` [PATCH 17/17] xdiff: change the types of dstart, dend, rchg, and rindex in xdfile_t Ezekiel Newren via GitGitGadget
2025-09-16 21:56 ` [PATCH 00/17] Use rust types in xdiff Junio C Hamano
2025-09-16 22:01 ` Ezekiel Newren
2025-09-17 2:16 ` Elijah Newren
2025-09-17 13:53 ` Junio C Hamano
2025-09-17 6:22 ` Junio C Hamano
2025-09-18 23:56 ` [PATCH v2 00/10] " Ezekiel Newren via GitGitGadget
2025-09-18 23:56 ` [PATCH v2 01/10] xdiff: delete static forward declarations in xprepare Ezekiel Newren via GitGitGadget
2025-09-18 23:56 ` [PATCH v2 02/10] xdiff: delete local variables and initialize/free xdfile_t directly Ezekiel Newren via GitGitGadget
2025-09-18 23:56 ` [PATCH v2 03/10] xdiff: delete unnecessary fields from xrecord_t and xdfile_t Ezekiel Newren via GitGitGadget
2025-09-18 23:56 ` [PATCH v2 04/10] xdiff: delete xdl_get_rec() in xemit Ezekiel Newren via GitGitGadget
2025-09-18 23:56 ` [PATCH v2 05/10] xdiff: delete struct diffdata_t Ezekiel Newren via GitGitGadget
2025-09-18 23:56 ` [PATCH v2 06/10] xdiff: delete redundant array xdfile_t.ha Ezekiel Newren via GitGitGadget
2025-09-18 23:56 ` [PATCH v2 07/10] xdiff: delete fields ha, line, size in xdlclass_t in favor of an xrecord_t Ezekiel Newren via GitGitGadget
2025-09-18 23:56 ` [PATCH v2 08/10] xdiff: delete chastore from xdfile_t Ezekiel Newren via GitGitGadget
2025-09-18 23:56 ` [PATCH v2 10/10] xdiff: treat xdfile_t.rchg like an enum Ezekiel Newren via GitGitGadget
2025-09-19 0:33 ` [PATCH v2 00/10] Use rust types in xdiff Junio C Hamano
2025-09-19 0:41 ` Ezekiel Newren
2025-09-19 15:15 ` Ezekiel Newren
2025-09-19 15:16 ` [PATCH v3 00/10] Cleanup xdfile_t and xrecord_t " Ezekiel Newren via GitGitGadget
2025-09-19 15:16 ` [PATCH v3 01/10] xdiff: delete static forward declarations in xprepare Ezekiel Newren via GitGitGadget
2025-09-20 17:16 ` Junio C Hamano
2025-09-20 17:41 ` Ezekiel Newren
2025-09-20 18:31 ` Elijah Newren
2025-09-20 22:25 ` Ben Knoble
2025-09-20 22:43 ` Junio C Hamano
2025-09-20 17:46 ` Ben Knoble
2025-09-20 18:46 ` Jeff King
2025-09-20 22:25 ` Ben Knoble
2025-09-20 22:52 ` Junio C Hamano
2025-09-20 23:15 ` Jeff King
2025-09-19 15:16 ` [PATCH v3 02/10] xdiff: delete local variables and initialize/free xdfile_t directly Ezekiel Newren via GitGitGadget
2025-09-20 17:36 ` Junio C Hamano
2025-09-19 15:16 ` [PATCH v3 03/10] xdiff: delete unnecessary fields from xrecord_t and xdfile_t Ezekiel Newren via GitGitGadget
2025-09-19 15:16 ` [PATCH v3 04/10] xdiff: delete xdl_get_rec() in xemit Ezekiel Newren via GitGitGadget
2025-09-20 17:48 ` Junio C Hamano
2025-09-21 13:06 ` Phillip Wood [this message]
2025-09-21 15:07 ` Ezekiel Newren
2025-09-19 15:16 ` [PATCH v3 05/10] xdiff: delete struct diffdata_t Ezekiel Newren via GitGitGadget
2025-09-21 13:06 ` Phillip Wood
2025-09-21 16:03 ` Ezekiel Newren
2025-09-19 15:16 ` [PATCH v3 06/10] xdiff: delete redundant array xdfile_t.ha Ezekiel Newren via GitGitGadget
2025-09-19 15:16 ` [PATCH v3 07/10] xdiff: delete fields ha, line, size in xdlclass_t in favor of an xrecord_t Ezekiel Newren via GitGitGadget
2025-09-21 13:06 ` Phillip Wood
2025-09-21 16:07 ` Ezekiel Newren
2025-09-19 15:16 ` [PATCH v3 08/10] xdiff: delete chastore from xdfile_t Ezekiel Newren via GitGitGadget
2025-09-19 15:16 ` [PATCH v3 09/10] xdiff: delete rchg aliasing Ezekiel Newren via GitGitGadget
2025-09-21 13:07 ` Phillip Wood
2025-09-21 16:37 ` Ezekiel Newren
2025-09-19 15:16 ` [PATCH v3 10/10] xdiff: treat xdfile_t.rchg like an enum Ezekiel Newren via GitGitGadget
2025-09-21 0:00 ` Junio C Hamano
2025-09-21 0:38 ` Ezekiel Newren
2025-09-21 9:19 ` Phillip Wood
2025-09-21 16:11 ` Ezekiel Newren
2025-09-19 23:30 ` [PATCH v3 00/10] Cleanup xdfile_t and xrecord_t in xdiff Elijah Newren
2025-09-19 23:37 ` Ezekiel Newren
2025-09-22 19:51 ` [PATCH v4 00/12] " Ezekiel Newren via GitGitGadget
2025-09-22 19:51 ` [PATCH v4 01/12] xdiff: delete static forward declarations in xprepare Ezekiel Newren via GitGitGadget
2025-09-22 19:51 ` [PATCH v4 02/12] xdiff: delete local variables and initialize/free xdfile_t directly Ezekiel Newren via GitGitGadget
2025-09-22 19:51 ` [PATCH v4 03/12] xdiff: delete unnecessary fields from xrecord_t and xdfile_t Ezekiel Newren via GitGitGadget
2025-09-22 19:51 ` [PATCH v4 04/12] xdiff: delete superfluous function xdl_get_rec() in xemit Ezekiel Newren via GitGitGadget
2025-09-22 19:51 ` [PATCH v4 05/12] xdiff: delete superfluous local variables that alias fields in xrecord_t Ezekiel Newren via GitGitGadget
2025-09-22 19:51 ` [PATCH v4 06/12] xdiff: delete struct diffdata_t Ezekiel Newren via GitGitGadget
2025-09-22 19:51 ` [PATCH v4 07/12] xdiff: delete redundant array xdfile_t.ha Ezekiel Newren via GitGitGadget
2025-09-22 19:51 ` [PATCH v4 08/12] xdiff: delete fields ha, line, size in xdlclass_t in favor of an xrecord_t Ezekiel Newren via GitGitGadget
2025-09-22 19:51 ` [PATCH v4 09/12] xdiff: delete chastore from xdfile_t Ezekiel Newren via GitGitGadget
2025-09-22 19:51 ` [PATCH v4 10/12] xdiff: delete rchg aliasing Ezekiel Newren via GitGitGadget
2025-09-22 19:51 ` [PATCH v4 11/12] xdiff: use bool literals for xdfile_t.rchg Ezekiel Newren via GitGitGadget
2025-09-22 19:51 ` [PATCH v4 12/12] xdiff: refactor 'char *rchg' to 'bool *changed' in xdfile_t Ezekiel Newren via GitGitGadget
2025-09-22 22:39 ` [PATCH v4 00/12] Cleanup xdfile_t and xrecord_t in xdiff Junio C Hamano
2025-09-23 0:13 ` Ezekiel Newren
2025-09-23 1:06 ` Junio C Hamano
2025-09-23 1:30 ` Ezekiel Newren
2025-09-23 14:12 ` Junio C Hamano
2025-09-23 16:50 ` Ezekiel Newren
2025-09-23 21:24 ` [PATCH v5 00/13] " Ezekiel Newren via GitGitGadget
2025-09-23 21:24 ` [PATCH v5 01/13] xdiff: delete static forward declarations in xprepare Ezekiel Newren via GitGitGadget
2025-09-23 21:24 ` [PATCH v5 02/13] xdiff: delete local variables and initialize/free xdfile_t directly Ezekiel Newren via GitGitGadget
2025-09-23 21:24 ` [PATCH v5 03/13] xdiff: delete unnecessary fields from xrecord_t and xdfile_t Ezekiel Newren via GitGitGadget
2025-09-23 21:24 ` [PATCH v5 04/13] xdiff: delete superfluous function xdl_get_rec() in xemit Ezekiel Newren via GitGitGadget
2025-09-30 13:31 ` Kristoffer Haugsbakk
2025-09-30 19:35 ` Ezekiel Newren
2025-09-30 20:05 ` Junio C Hamano
2025-09-23 21:24 ` [PATCH v5 05/13] xdiff: delete superfluous local variables that alias fields in xrecord_t Ezekiel Newren via GitGitGadget
2025-09-24 10:22 ` Phillip Wood
2025-09-24 14:52 ` Ezekiel Newren
2025-09-23 21:24 ` [PATCH v5 06/13] xdiff: delete struct diffdata_t Ezekiel Newren via GitGitGadget
2025-09-23 21:24 ` [PATCH v5 07/13] xdiff: delete redundant array xdfile_t.ha Ezekiel Newren via GitGitGadget
2025-09-23 21:24 ` [PATCH v5 08/13] xdiff: delete fields ha, line, size in xdlclass_t in favor of an xrecord_t Ezekiel Newren via GitGitGadget
2025-09-23 21:24 ` [PATCH v5 09/13] xdiff: delete chastore from xdfile_t Ezekiel Newren via GitGitGadget
2025-09-23 21:24 ` [PATCH v5 10/13] xdiff: delete rchg aliasing Ezekiel Newren via GitGitGadget
2025-09-24 10:22 ` Phillip Wood
2025-09-24 15:01 ` Ezekiel Newren
2025-09-24 15:34 ` Junio C Hamano
2025-09-24 15:58 ` Ezekiel Newren
2025-09-24 21:31 ` Junio C Hamano
2025-09-24 22:46 ` Ezekiel Newren
2025-09-25 7:09 ` Junio C Hamano
2025-09-25 22:02 ` Ezekiel Newren
2025-09-23 21:24 ` [PATCH v5 11/13] xdiff: rename rchg -> changed in xdfile_t Ezekiel Newren via GitGitGadget
2025-09-24 10:22 ` Phillip Wood
2025-09-24 15:10 ` Ezekiel Newren
2025-09-24 15:18 ` Phillip Wood
2025-09-23 21:24 ` [PATCH v5 12/13] xdiff: use enum macros NONE(0), SOME(1), TOO_MANY(2) in xprepare.c Ezekiel Newren via GitGitGadget
2025-09-24 10:21 ` Phillip Wood
2025-09-24 14:46 ` Ezekiel Newren
2025-09-24 15:18 ` Phillip Wood
2025-09-24 17:29 ` Junio C Hamano
2025-09-25 18:40 ` Ezekiel Newren
2025-09-26 2:29 ` Ezekiel Newren
2025-09-23 21:24 ` [PATCH v5 13/13] xdiff: change type of xdfile_t.changed from char to bool Ezekiel Newren via GitGitGadget
2025-09-24 10:21 ` Phillip Wood
2025-09-24 15:14 ` Ezekiel Newren
2025-09-26 22:41 ` [PATCH v6 00/12] Cleanup xdfile_t and xrecord_t in xdiff Ezekiel Newren via GitGitGadget
2025-09-26 22:41 ` [PATCH v6 01/12] xdiff: delete static forward declarations in xprepare Ezekiel Newren via GitGitGadget
2025-09-26 22:41 ` [PATCH v6 02/12] xdiff: delete local variables and initialize/free xdfile_t directly Ezekiel Newren via GitGitGadget
2025-09-26 22:41 ` [PATCH v6 03/12] xdiff: delete unnecessary fields from xrecord_t and xdfile_t Ezekiel Newren via GitGitGadget
2025-09-26 22:41 ` [PATCH v6 04/12] xdiff: delete superfluous function xdl_get_rec() in xemit Ezekiel Newren via GitGitGadget
2025-09-26 22:41 ` [PATCH v6 05/12] xdiff: delete local variables that alias fields in xrecord_t Ezekiel Newren via GitGitGadget
2025-09-26 22:41 ` [PATCH v6 06/12] xdiff: delete struct diffdata_t Ezekiel Newren via GitGitGadget
2025-09-26 22:41 ` [PATCH v6 07/12] xdiff: delete redundant array xdfile_t.ha Ezekiel Newren via GitGitGadget
2025-09-26 22:41 ` [PATCH v6 08/12] xdiff: delete fields ha, line, size in xdlclass_t in favor of an xrecord_t Ezekiel Newren via GitGitGadget
2025-09-26 22:41 ` [PATCH v6 09/12] xdiff: delete chastore from xdfile_t Ezekiel Newren via GitGitGadget
2025-09-26 22:41 ` [PATCH v6 10/12] xdiff: rename rchg -> changed in xdfile_t Ezekiel Newren via GitGitGadget
2025-09-26 22:41 ` [PATCH v6 11/12] xdiff: add macros DISCARD(0), KEEP(1), INVESTIGATE(2) in xprepare.c Ezekiel Newren via GitGitGadget
2025-09-26 22:41 ` [PATCH v6 12/12] xdiff: change type of xdfile_t.changed from char to bool Ezekiel Newren via GitGitGadget
2025-10-03 13:47 ` [PATCH v6 00/12] Cleanup xdfile_t and xrecord_t in xdiff Phillip Wood
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