qlit: add qobject_from_qlit()

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 <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180305172951.2150-4-marcandre.lureau@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>

1 files changed, 37 insertions, 0 deletions

diff --git a/qobject/qlit.c b/qobject/qlit.c
index 948e0b860c..d0e1b72fd0 100644
--- a/qobject/qlit.c
+++ b/qobject/qlit.c
@@ -21,6 +21,7 @@
 #include "qapi/qmp/qnum.h"
 #include "qapi/qmp/qdict.h"
 #include "qapi/qmp/qstring.h"
+#include "qapi/qmp/qnull.h"
 
 static bool qlit_equal_qdict(const QLitObject *lhs, const QDict *qdict)
 {
@@ -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;
+}