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Revision 50f2bdc7

ID50f2bdc75c5ee00617ad874c9ceac2cea660aa1e

Added by Kevin Wolf over 10 years ago

qapi: Flat unions with arbitrary discriminator

Instead of the rather verbose syntax that distinguishes base and
subclass fields...

{ "type": "file",
    "read-only": true,
    "data": {
        "filename": "test" 
    } }

...we can now have both in the same namespace, allowing a more direct
mapping of the command line, and moving fields between the common base
and subclasses without breaking the API:

{ "driver": "file",
    "read-only": true,
    "filename": "test" }

Signed-off-by: Kevin Wolf <>
Reviewed-by: Eric Blake <>

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