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qapi: Document intended use of @name within alternate visits

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Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1493282486-28338-4-git-send-email-armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
This commit is contained in:
Markus Armbruster 2017-04-27 10:41:25 +02:00
parent 6c02258e14
commit ed0ba0f47e
1 changed files with 4 additions and 2 deletions
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6
include/qapi/visitor.h
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@ -63,8 +63,10 @@
* The @name parameter of visit_type_FOO() describes the relation
* between this QAPI value and its parent container. When visiting
* the root of a tree, @name is ignored; when visiting a member of an
* object, @name is the key associated with the value; and when
* visiting a member of a list, @name is NULL.
* object, @name is the key associated with the value; when visiting a
* member of a list, @name is NULL; and when visiting the member of an
* alternate, @name should equal the name used for visiting the
* alternate.
*
* The visit_type_FOO() functions expect a non-null @obj argument;
* they allocate *@obj during input visits, leave it unchanged on