qemu: qapi: Implement worker for introspecting builtin types

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Peter Krempa 2019-04-11 14:54:41 +02:00
parent 8bfb615b4b
commit b82f2d837a
2 changed files with 32 additions and 1 deletions

View File

@ -121,7 +121,7 @@ virQEMUQAPISchemaTraverseObject(virJSONValuePtr cur,
query++;
/* exit on modifers for other types */
if (modifier == '^')
if (modifier == '^' || modifier == '!')
return 0;
if (modifier == '+') {
@ -203,6 +203,31 @@ virQEMUQAPISchemaTraverseEnum(virJSONValuePtr cur,
}
static int
virQEMUQAPISchemaTraverseBuiltin(virJSONValuePtr cur,
struct virQEMUQAPISchemaTraverseContext *ctxt)
{
const char *query = virQEMUQAPISchemaTraverseContextNextQuery(ctxt);
const char *jsontype;
if (query[0] != '!')
return 0;
if (virQEMUQAPISchemaTraverseContextHasNextQuery(ctxt))
return -3;
query++;
if (!(jsontype = virJSONValueObjectGetString(cur, "json-type")))
return -1;
if (STREQ(jsontype, query))
return 1;
return 0;
}
/* The function must return 1 on successful query, 0 if the query was not found
* -1 when a libvirt error is reported, -2 if the schema is invalid and -3 if
* the query component is malformed. */
@ -221,6 +246,7 @@ static const struct virQEMUQAPISchemaTraverseMetaType traverseMetaType[] = {
{ "command", virQEMUQAPISchemaTraverseCommand },
{ "event", virQEMUQAPISchemaTraverseCommand },
{ "enum", virQEMUQAPISchemaTraverseEnum },
{ "builtin", virQEMUQAPISchemaTraverseBuiltin },
};
@ -280,6 +306,9 @@ virQEMUQAPISchemaTraverse(const char *baseName,
*
* - Boolean queries - @entry remains NULL, return value indicates success:
* '^enumval': returns true if the previously selected enum contains 'enumval'
* '!basictype': returns true if previously selected type is of 'basictype'
* JSON type. Spported are 'null', 'string', 'number', 'value',
* 'int' and 'boolean.
*
* If the name of any (sub)attribute starts with non-alphabetical symbols it
* needs to be prefixed by a single space.

View File

@ -3092,12 +3092,14 @@ mymain(void)
DO_TEST_QAPI_QUERY("variant", "blockdev-add/arg-type/+file", 1, true);
DO_TEST_QAPI_QUERY("variant property", "blockdev-add/arg-type/+file/filename", 1, true);
DO_TEST_QAPI_QUERY("enum value", "query-status/ret-type/status/^debug", 1, false);
DO_TEST_QAPI_QUERY("builtin type", "query-qmp-schema/ret-type/name/!string", 1, false);
DO_TEST_QAPI_QUERY("nonexistent command", "nonexistent", 0, false);
DO_TEST_QAPI_QUERY("nonexistent attr", "screendump/arg-type/nonexistent", 0, false);
DO_TEST_QAPI_QUERY("nonexistent variant", "blockdev-add/arg-type/+nonexistent", 0, false);
DO_TEST_QAPI_QUERY("nonexistent enum value", "query-status/ret-type/status/^nonexistentdebug", 0, false);
DO_TEST_QAPI_QUERY("broken query for enum value", "query-status/ret-type/status/^debug/test", -1, false);
DO_TEST_QAPI_QUERY("builtin type", "query-qmp-schema/ret-type/name/!number", 0, false);
#undef DO_TEST_QAPI_QUERY