mirror_qemu/qapi
Eric Blake 2c0ef9f411 qapi: Add new visit_free() function
Making each visitor provide its own (awkwardly-named) FOO_cleanup()
is unusual, when we can instead have a polymorphic visit_free()
interface.  Over the next few patches, we can use the polymorphic
functions to eliminate the need for a FOO_get_visitor() function
for accessing specific visitor functionality, once everything can
be accessed directly through the Visitor* interfaces.

The dealloc visitor is the first one converted to completely use
the new entry point, since qapi_dealloc_visitor_cleanup() was the
only reason that qapi_dealloc_get_visitor() existed, and only
generated and testsuite code was even using it.  With the new
visit_free() entry point in place, we no longer need to expose
the QapiDeallocVisitor subtype through qapi_dealloc_visitor_new(),
and can get by with less generated code, with diffs that look like:

| void qapi_free_ACPIOSTInfo(ACPIOSTInfo *obj)
| {
|-    QapiDeallocVisitor *qdv;
|     Visitor *v;
|
|     if (!obj) {
|         return;
|     }
|
|-    qdv = qapi_dealloc_visitor_new();
|-    v = qapi_dealloc_get_visitor(qdv);
|+    v = qapi_dealloc_visitor_new();
|     visit_type_ACPIOSTInfo(v, NULL, &obj, NULL);
|-    qapi_dealloc_visitor_cleanup(qdv);
|+    visit_free(v);
|}

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1465490926-28625-5-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2016-07-06 10:52:04 +02:00
..
Makefile.objs rename parse_enum_option to qapi_enum_parse and make it public 2014-09-08 11:12:43 +01:00
block-core.json qmp: add monitor command to add/remove a child 2016-05-12 15:33:23 +02:00
block.json qmp event: Refactor QUORUM_REPORT_BAD 2016-03-14 16:46:43 +01:00
common.json kvm: add support for -machine kernel_irqchip=split 2015-12-17 17:15:40 +01:00
crypto.json crypto: implement sha224, sha384, sha512 and ripemd160 hashes 2016-07-04 15:52:36 +01:00
event.json qmp event: Refactor QUORUM_REPORT_BAD 2016-03-14 16:46:43 +01:00
introspect.json qapi: Use anonymous bases in QMP flat unions 2016-03-18 10:29:26 +01:00
opts-visitor.c qapi: Add new visit_free() function 2016-07-06 10:52:04 +02:00
qapi-dealloc-visitor.c qapi: Add new visit_free() function 2016-07-06 10:52:04 +02:00
qapi-util.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
qapi-visit-core.c qapi: Add new visit_free() function 2016-07-06 10:52:04 +02:00
qmp-dispatch.c qapi: Improve use of qmp/types.h 2016-07-06 10:52:03 +02:00
qmp-event.c qapi: Clean up includes 2016-02-04 17:41:30 +00:00
qmp-input-visitor.c qapi: Add new visit_free() function 2016-07-06 10:52:04 +02:00
qmp-output-visitor.c qapi: Add new visit_free() function 2016-07-06 10:52:04 +02:00
qmp-registry.c all: Remove unnecessary glib.h includes 2016-06-07 18:19:24 +03:00
rocker.json qmp/hmp: add rocker device support 2015-06-12 13:42:17 +01:00
string-input-visitor.c qapi: Add new visit_free() function 2016-07-06 10:52:04 +02:00
string-output-visitor.c qapi: Add new visit_free() function 2016-07-06 10:52:04 +02:00
trace.json qapi: Use 'struct' instead of 'type' in schema 2015-05-05 18:39:01 +02:00