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[Qemu-devel] [PATCH RFC 02/14] qlit: add qobject_from_qlit()


From: Markus Armbruster
Subject: [Qemu-devel] [PATCH RFC 02/14] qlit: add qobject_from_qlit()
Date: Mon, 12 Feb 2018 08:21:55 +0100

From: Marc-André Lureau <address@hidden>

Instantiate a QObject* from a literal QLitObject.

LitObject only supports int64_t for now.  uint64_t and double aren't
implemented.

Signed-off-by: Marc-André Lureau <address@hidden>
Reviewed-by: Markus Armbruster <address@hidden>
---
 include/qapi/qmp/qlit.h |  2 ++
 qobject/qlit.c          | 37 +++++++++++++++++++++++++++++++++++++
 tests/check-qlit.c      | 28 ++++++++++++++++++++++++++++
 3 files changed, 67 insertions(+)

diff --git a/include/qapi/qmp/qlit.h b/include/qapi/qmp/qlit.h
index f1ed082df8..c0676d5daf 100644
--- a/include/qapi/qmp/qlit.h
+++ b/include/qapi/qmp/qlit.h
@@ -50,4 +50,6 @@ struct QLitDictEntry {
 
 bool qlit_equal_qobject(const QLitObject *lhs, const QObject *rhs);
 
+QObject *qobject_from_qlit(const QLitObject *qlit);
+
 #endif /* QLIT_H */
diff --git a/qobject/qlit.c b/qobject/qlit.c
index 948e0b860c..a921abf84a 100644
--- a/qobject/qlit.c
+++ b/qobject/qlit.c
@@ -18,6 +18,7 @@
 #include "qapi/qmp/qlit.h"
 #include "qapi/qmp/qbool.h"
 #include "qapi/qmp/qlist.h"
+#include "qapi/qmp/qnull.h"
 #include "qapi/qmp/qnum.h"
 #include "qapi/qmp/qdict.h"
 #include "qapi/qmp/qstring.h"
@@ -86,3 +87,39 @@ bool qlit_equal_qobject(const QLitObject *lhs, const QObject 
*rhs)
 
     return false;
 }
+
+QObject *qobject_from_qlit(const QLitObject *qlit)
+{
+    switch (qlit->type) {
+    case QTYPE_QNULL:
+        return QOBJECT(qnull());
+    case QTYPE_QNUM:
+        return QOBJECT(qnum_from_int(qlit->value.qnum));
+    case QTYPE_QSTRING:
+        return QOBJECT(qstring_from_str(qlit->value.qstr));
+    case QTYPE_QDICT: {
+        QDict *qdict = qdict_new();
+        QLitDictEntry *e;
+
+        for (e = qlit->value.qdict; e->key; e++) {
+            qdict_put_obj(qdict, e->key, qobject_from_qlit(&e->value));
+        }
+        return QOBJECT(qdict);
+    }
+    case QTYPE_QLIST: {
+        QList *qlist = qlist_new();
+        QLitObject *e;
+
+        for (e = qlit->value.qlist; e->type != QTYPE_NONE; e++) {
+            qlist_append_obj(qlist, qobject_from_qlit(e));
+        }
+        return QOBJECT(qlist);
+    }
+    case QTYPE_QBOOL:
+        return QOBJECT(qbool_from_bool(qlit->value.qbool));
+    default:
+        assert(0);
+    }
+
+    return NULL;
+}
diff --git a/tests/check-qlit.c b/tests/check-qlit.c
index 5d0f65b9c7..836f4a3090 100644
--- a/tests/check-qlit.c
+++ b/tests/check-qlit.c
@@ -9,9 +9,11 @@
 
 #include "qemu/osdep.h"
 
+#include "qapi/qmp/qbool.h"
 #include "qapi/qmp/qdict.h"
 #include "qapi/qmp/qlist.h"
 #include "qapi/qmp/qlit.h"
+#include "qapi/qmp/qnum.h"
 #include "qapi/qmp/qstring.h"
 
 static QLitObject qlit = QLIT_QDICT(((QLitDictEntry[]) {
@@ -63,11 +65,37 @@ static void qlit_equal_qobject_test(void)
     qobject_decref(qobj);
 }
 
+static void qobject_from_qlit_test(void)
+{
+    QObject *obj, *qobj = qobject_from_qlit(&qlit);
+    QDict *qdict;
+    QList *bee;
+
+    qdict = qobject_to_qdict(qobj);
+    g_assert_cmpint(qdict_get_int(qdict, "foo"), ==, 42);
+    g_assert_cmpstr(qdict_get_str(qdict, "bar"), ==, "hello world");
+    g_assert(qobject_type(qdict_get(qdict, "baz")) == QTYPE_QNULL);
+
+    bee = qdict_get_qlist(qdict, "bee");
+    obj = qlist_pop(bee);
+    g_assert_cmpint(qnum_get_int(qobject_to_qnum(obj)), ==, 43);
+    qobject_decref(obj);
+    obj = qlist_pop(bee);
+    g_assert_cmpint(qnum_get_int(qobject_to_qnum(obj)), ==, 44);
+    qobject_decref(obj);
+    obj = qlist_pop(bee);
+    g_assert(qbool_get_bool(qobject_to_qbool(obj)));
+    qobject_decref(obj);
+
+    qobject_decref(qobj);
+}
+
 int main(int argc, char **argv)
 {
     g_test_init(&argc, &argv, NULL);
 
     g_test_add_func("/qlit/equal_qobject", qlit_equal_qobject_test);
+    g_test_add_func("/qlit/qobject_from_qlit", qobject_from_qlit_test);
 
     return g_test_run();
 }
-- 
2.13.6




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