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qapi: Introduce a first class 'null' type

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I expect the 'null' type to be useful mostly for members of alternate
types.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
This commit is contained in:
Markus Armbruster 2017-06-26 19:25:14 +02:00
parent d2f95f4d48
commit 4d2d5c41a9
8 changed files with 31 additions and 8 deletions
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3
tests/qapi-schema/qapi-schema-test.json
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@ -93,7 +93,8 @@
{ 'struct': 'WrapAlternate',
'data': { 'alt': 'UserDefAlternate' } }
{ 'alternate': 'UserDefAlternate',
'data': { 'udfu': 'UserDefFlatUnion', 'e': 'EnumOne', 'i': 'int' } }
'data': { 'udfu': 'UserDefFlatUnion', 'e': 'EnumOne', 'i': 'int',
'n': 'null' } }
{ 'struct': 'UserDefC',
'data': { 'string1': 'str', 'string2': 'str' } }

1
tests/qapi-schema/qapi-schema-test.out
View file

@ -64,6 +64,7 @@ alternate UserDefAlternate
case udfu: UserDefFlatUnion
case e: EnumOne
case i: int
case n: null
object UserDefB
member intb: int optional=False
member a-b: bool optional=True