object: introduce uc_protoref_new()

The new uc_protoref_new() function allows creating array or object values
with prototype references.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

2 files changed, 24 insertions, 0 deletions

diff --git a/object.c b/object.c
index 5841f76..4e49ac4 100644
--- a/object.c
+++ b/object.c
@@ -316,6 +316,29 @@ uc_prototype_new(uc_prototype *parent)
 	return proto;
 }
 
+uc_prototype *
+uc_protoref_new(json_object *value, uc_prototype *proto)
+{
+	uc_prototype *ref;
+
+	if (!json_object_is_type(value, json_type_object) &&
+	    !json_object_is_type(value, json_type_array))
+		return NULL;
+
+	ref = xalloc(sizeof(*ref));
+	ref->header.type = UC_OBJ_PROTOTYPE;
+	ref->header.jso = value;
+
+	if (proto) {
+		ref->parent = proto;
+		uc_value_get(proto->header.jso);
+	}
+
+	json_object_set_serializer(ref->header.jso, NULL, ref, uc_prototype_gc);
+
+	return ref;
+}
+
 
 static uc_ressource_types res_types;
 
diff --git a/object.h b/object.h
index ba08651..069f9ed 100644
--- a/object.h
+++ b/object.h
@@ -118,6 +118,7 @@ uc_closure *uc_closure_new(uc_function *function, bool arrow_fn);
 uc_cfunction *uc_cfunction_new(const char *name, uc_cfn_ptr cfn);
 uc_regexp *uc_regexp_new(const char *pattern, bool icase, bool newline, bool global, char **err);
 uc_prototype *uc_prototype_new(uc_prototype *parent);
+uc_prototype *uc_protoref_new(json_object *value, uc_prototype *proto);
 
 uc_ressource_type *uc_ressource_type_add(const char *name, uc_prototype *proto, void (*freefn)(void *));
 uc_ressource_type *uc_ressource_type_lookup(const char *name);