qemu-e2k/tests/qapi-schema/alternate-empty.json

# alternates cannot be empty
{ 'alternate': 'Alt', 'data': { } }
qapi: Permit alternates with just one branch A union or alternate without branches makes no sense and doesn't work: it can't be instantiated. A union or alternate with just one branch works, but is degenerate. We accept the former, but reject the latter. Weird. docs/devel/qapi-code-gen.txt doesn't mention the difference. It claims an alternate definition is "is similar to a simple union type". Permit degenerate alternates to make them consistent with unions. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190913201349.24332-10-armbru@redhat.com> 2019-09-13 22:13:42 +02:00			`# alternates cannot be empty`
			`{ 'alternate': 'Alt', 'data': { } }`