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authorEric Blake <eblake@redhat.com>2015-12-01 22:20:51 -0700
committerMarkus Armbruster <armbru@redhat.com>2015-12-17 08:21:28 +0100
commitd00341af384665d259af475b14c96bb8414df415 (patch)
treeb8b9f5d8f4804d7174fc75538cddc1a935f79260 /scripts/qapi-visit.py
parent9d3f3494c5b941774e2c3e7639332d53bbe6f8be (diff)
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qapi: Fix alternates that accept 'number' but not 'int'
The QMP input visitor allows integral values to be assigned by promotion to a QTYPE_QFLOAT. However, when parsing an alternate, we did not take this into account, such that an alternate that accepts 'number' and some other type, but not 'int', would reject integral values. With this patch, we now have the following desirable table: alternate has case selected for 'int' 'number' QTYPE_QINT QTYPE_QFLOAT no no error error no yes 'number' 'number' yes no 'int' error yes yes 'int' 'number' While it is unlikely that we will ever use 'number' in an alternate other than in the testsuite, it never hurts to be more precise in what we allow. Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <1449033659-25497-8-git-send-email-eblake@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
Diffstat (limited to 'scripts/qapi-visit.py')
-rw-r--r--scripts/qapi-visit.py11
1 files changed, 7 insertions, 4 deletions
diff --git a/scripts/qapi-visit.py b/scripts/qapi-visit.py
index 4797d6e..b93690b 100644
--- a/scripts/qapi-visit.py
+++ b/scripts/qapi-visit.py
@@ -184,6 +184,11 @@ void visit_type_%(c_name)s(Visitor *v, %(c_name)s *obj, const char *name, Error
def gen_visit_alternate(name, variants):
+ promote_int = 'true'
+ for var in variants.variants:
+ if var.type.alternate_qtype() == 'QTYPE_QINT':
+ promote_int = 'false'
+
ret = mcgen('''
void visit_type_%(c_name)s(Visitor *v, %(c_name)s **obj, const char *name, Error **errp)
@@ -194,16 +199,14 @@ void visit_type_%(c_name)s(Visitor *v, %(c_name)s **obj, const char *name, Error
if (err) {
goto out;
}
- visit_get_next_type(v, &(*obj)->type, name, &err);
+ visit_get_next_type(v, &(*obj)->type, %(promote_int)s, name, &err);
if (err) {
goto out_obj;
}
switch ((*obj)->type) {
''',
- c_name=c_name(name))
+ c_name=c_name(name), promote_int=promote_int)
- # FIXME: When 'number' but not 'int' is present in the alternate, we
- # should allow QTYPE_INT to promote to QTYPE_FLOAT.
for var in variants.variants:
ret += mcgen('''
case %(case)s: