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qapi: add 'if' to union members

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Add 'if' key to union members:

{ 'union': 'TestIfUnion', 'data':
    'mem': { 'type': 'str', 'if': 'COND'} }

The generated code remains unconditional for now. Later patches
generate the conditionals.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20181213123724.4866-16-marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
This commit is contained in:
Marc-André Lureau 2018-12-13 16:37:17 +04:00 • committed by Markus Armbruster
parent ccadd6bcba
commit a2724280fb
5 changed files with 17 additions and 9 deletions
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2
docs/devel/qapi-code-gen.txt
View file

@ -754,7 +754,7 @@ gets its generated code guarded like this:
Where a member can be defined with a single string value for its type,
it is also possible to supply a dictionary instead with both 'type'
and 'if' keys. (TODO: union and alternate)
and 'if' keys. (TODO: alternate)
Example: a conditional 'bar' member