lib/json: add a reference to `serialize_to_json` in `to_json`

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>

diff --git a/lib/json/static.nit b/lib/json/static.nit
index 565da1f..e333b85 100644 (file)
--- a/lib/json/static.nit
+++ b/lib/json/static.nit
@@ -31,6 +31,9 @@ private import json_lexer
 interface Jsonable
        # Encode `self` in JSON.
        #
+       # This is a recursive method which can be refined by any subclasses.
+       # To write any `Serializable` object to JSON, see `serialize_to_json`.
+       #
        # SEE: `append_json`
        fun to_json: String is abstract