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qapi: Support downstream flat unions 

Enhance the testsuite to cover downstream flat unions, including
the base type, discriminator name and type, and branch name and
type.  Update the generator to mangle the union names in the
appropriate places.

Signed-off-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
This commit is contained in:
Eric Blake 2015-05-14 06:50:59 -06:00 committed by Markus Armbruster
parent bb33729043
commit 857af5f06c
4 changed files with 13 additions and 5 deletions
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2
scripts/qapi-types.py
View File

@ -213,7 +213,7 @@ struct %(name)s
void *data;
''',
name=name,
discriminator_type_name=discriminator_type_name)
discriminator_type_name=c_name(discriminator_type_name))
for key in typeinfo:
ret += mcgen('''

4
scripts/qapi-visit.py
View File

@ -252,7 +252,7 @@ def generate_visit_union(expr):
if enum_define:
# Use the enum type as discriminator
ret = ""
disc_type = enum_define['enum_name']
disc_type = c_name(enum_define['enum_name'])
else:
# There will always be a discriminator in the C switch code, by default
# it is an enum type generated silently
@ -290,7 +290,7 @@ void visit_type_%(name)s(Visitor *m, %(name)s **obj, const char *name, Error **e
goto out_obj;
}
''',
name=name)
name=c_name(name))
if not discriminator:
disc_key = "type"

5
tests/qapi-schema/qapi-schema-test.json
View File

@ -115,3 +115,8 @@
{ 'struct': '__org.qemu_x-Struct', 'base': '__org.qemu_x-Base',
'data': { '__org.qemu_x-member2': 'str' } }
{ 'union': '__org.qemu_x-Union1', 'data': { '__org.qemu_x-branch': 'str' } }
{ 'struct': '__org.qemu_x-Struct2',
'data': { 'array': ['__org.qemu_x-Union1'] } }
{ 'union': '__org.qemu_x-Union2', 'base': '__org.qemu_x-Base',
'discriminator': '__org.qemu_x-member1',
'data': { '__org.qemu_x-value': '__org.qemu_x-Struct2' } }

7
tests/qapi-schema/qapi-schema-test.out
View File

@ -26,7 +26,9 @@
OrderedDict([('enum', '__org.qemu_x-Enum'), ('data', ['__org.qemu_x-value'])]),
OrderedDict([('struct', '__org.qemu_x-Base'), ('data', OrderedDict([('__org.qemu_x-member1', '__org.qemu_x-Enum')]))]),
OrderedDict([('struct', '__org.qemu_x-Struct'), ('base', '__org.qemu_x-Base'), ('data', OrderedDict([('__org.qemu_x-member2', 'str')]))]),
OrderedDict([('union', '__org.qemu_x-Union1'), ('data', OrderedDict([('__org.qemu_x-branch', 'str')]))])]
OrderedDict([('union', '__org.qemu_x-Union1'), ('data', OrderedDict([('__org.qemu_x-branch', 'str')]))]),
OrderedDict([('struct', '__org.qemu_x-Struct2'), ('data', OrderedDict([('array', ['__org.qemu_x-Union1'])]))]),
OrderedDict([('union', '__org.qemu_x-Union2'), ('base', '__org.qemu_x-Base'), ('discriminator', '__org.qemu_x-member1'), ('data', OrderedDict([('__org.qemu_x-value', '__org.qemu_x-Struct2')]))])]
[{'enum_name': 'EnumOne', 'enum_values': ['value1', 'value2', 'value3']},
{'enum_name': '__org.qemu_x-Enum', 'enum_values': ['__org.qemu_x-value']},
{'enum_name': 'UserDefAlternateKind', 'enum_values': None},
@ -45,4 +47,5 @@
OrderedDict([('struct', 'UserDefOptions'), ('data', OrderedDict([('*i64', ['int']), ('*u64', ['uint64']), ('*u16', ['uint16']), ('*i64x', 'int'), ('*u64x', 'uint64')]))]),
OrderedDict([('struct', 'EventStructOne'), ('data', OrderedDict([('struct1', 'UserDefOne'), ('string', 'str'), ('*enum2', 'EnumOne')]))]),
OrderedDict([('struct', '__org.qemu_x-Base'), ('data', OrderedDict([('__org.qemu_x-member1', '__org.qemu_x-Enum')]))]),
OrderedDict([('struct', '__org.qemu_x-Struct'), ('base', '__org.qemu_x-Base'), ('data', OrderedDict([('__org.qemu_x-member2', 'str')]))])]
OrderedDict([('struct', '__org.qemu_x-Struct'), ('base', '__org.qemu_x-Base'), ('data', OrderedDict([('__org.qemu_x-member2', 'str')]))]),
OrderedDict([('struct', '__org.qemu_x-Struct2'), ('data', OrderedDict([('array', ['__org.qemu_x-Union1'])]))])]