Add a QObject JSON wrapper

This provides a QObject interface for creating QObjects from a JSON expression.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 60 insertions, 0 deletions

diff --git a/qjson.c b/qjson.c
new file mode 100644
index 0000000000..45207f2433
--- /dev/null
+++ b/qjson.c
@@ -0,0 +1,60 @@
+/*
+ * QObject JSON integration
+ *
+ * Copyright IBM, Corp. 2009
+ *
+ * Authors:
+ *  Anthony Liguori   <aliguori@us.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
+ * See the COPYING.LIB file in the top-level directory.
+ *
+ */
+
+#include "json-lexer.h"
+#include "json-parser.h"
+#include "json-streamer.h"
+#include "qjson.h"
+
+typedef struct JSONParsingState
+{
+    JSONMessageParser parser;
+    va_list *ap;
+    QObject *result;
+} JSONParsingState;
+
+static void parse_json(JSONMessageParser *parser, QList *tokens)
+{
+    JSONParsingState *s = container_of(parser, JSONParsingState, parser);
+    s->result = json_parser_parse(tokens, s->ap);
+}
+
+QObject *qobject_from_json(const char *string)
+{
+    JSONParsingState state = {};
+
+    json_message_parser_init(&state.parser, parse_json);
+    json_message_parser_feed(&state.parser, string, strlen(string));
+    json_message_parser_flush(&state.parser);
+    json_message_parser_destroy(&state.parser);
+
+    return state.result;
+}
+
+QObject *qobject_from_jsonf(const char *string, ...)
+{
+    JSONParsingState state = {};
+    va_list ap;
+
+    va_start(ap, string);
+    state.ap = &ap;
+
+    json_message_parser_init(&state.parser, parse_json);
+    json_message_parser_feed(&state.parser, string, strlen(string));
+    json_message_parser_flush(&state.parser);
+    json_message_parser_destroy(&state.parser);
+
+    va_end(ap);
+
+    return state.result;
+}