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Re: [PATCH v3 29/30] qapi qga: Elide redundant has_FOO in generated C


From: Philippe Mathieu-Daudé
Subject: Re: [PATCH v3 29/30] qapi qga: Elide redundant has_FOO in generated C
Date: Sat, 5 Nov 2022 18:13:42 +0100
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:102.0) Gecko/20100101 Thunderbird/102.4.1

On 4/11/22 17:07, Markus Armbruster wrote:
The has_FOO for pointer-valued FOO are redundant, except for arrays.
They are also a nuisance to work with.  Recent commit "qapi: Start to
elide redundant has_FOO in generated C" provided the means to elide
them step by step.  This is the step for qga/qapi-schema.json.

Said commit explains the transformation in more detail.  The invariant
violations mentioned there do not occur here.

Cc: Michael Roth <michael.roth@amd.com>
Cc: Konstantin Kostiuk <kkostiuk@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
  qga/commands-posix.c   | 32 ++++++++------------------------
  qga/commands-win32.c   | 40 +++++++---------------------------------
  qga/commands.c         | 11 ++++-------
  scripts/qapi/schema.py |  3 +--
  4 files changed, 20 insertions(+), 66 deletions(-)

-int64_t qmp_guest_file_open(const char *path, bool has_mode, const char *mode,
+int64_t qmp_guest_file_open(const char *path, const char *mode,
                              Error **errp)
  {
      FILE *fh;
      Error *local_err = NULL;
      int64_t handle;
- if (!has_mode) {
+    if (!mode) {
          mode = "r";
      }

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>




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