qapi: shortcut visits on errors

We can exit very soon if we enter a visitor with a preexisting error.
This simplifies some cases because we will not have to deal with
obj being non-NULL while *obj is NULL.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
This commit is contained in:
Paolo Bonzini 2012-03-22 12:51:06 +01:00 committed by Luiz Capitulino
parent 8b714d3747
commit b6f0474fc0

View File

@ -61,6 +61,9 @@ def generate_visit_struct(name, members):
void visit_type_%(name)s(Visitor *m, %(name)s ** obj, const char *name, Error **errp)
{
if (error_is_set(errp)) {
return;
}
visit_start_struct(m, (void **)obj, "%(name)s", name, sizeof(%(name)s), errp);
''',
name=name)
@ -81,6 +84,9 @@ void visit_type_%(name)sList(Visitor *m, %(name)sList ** obj, const char *name,
{
GenericList *i, **head = (GenericList **)obj;
if (error_is_set(errp)) {
return;
}
visit_start_list(m, name, errp);
for (*head = i = visit_next_list(m, head, errp); i; i = visit_next_list(m, &i, errp)) {
@ -112,6 +118,9 @@ void visit_type_%(name)s(Visitor *m, %(name)s ** obj, const char *name, Error **
{
Error *err = NULL;
if (error_is_set(errp)) {
return;
}
visit_start_struct(m, (void **)obj, "%(name)s", name, sizeof(%(name)s), &err);
visit_type_%(name)sKind(m, &(*obj)->kind, "type", &err);
if (err) {