Merge: modelize: ask that attributes in refinements are either noautoninit or have...

[nit.git] / lib / json / serialization.nit

diff --git a/lib/json/serialization.nit b/lib/json/serialization.nit
index 813c094..359acf5 100644 (file)
--- a/lib/json/serialization.nit
+++ b/lib/json/serialization.nit
@@ -39,7 +39,7 @@
 # import json::serialization
 #
 # class Person
-#     auto_serializable
+#     serialize
 #
 #     var name: String
 #     var year_of_birth: Int
@@ -57,13 +57,13 @@
 # ~~~
 module serialization
 
-import ::serialization
+import ::serialization::caching
 private import ::serialization::engine_tools
 private import static
 
 # Serializer of Nit objects to Json string.
 class JsonSerializer
-       super Serializer
+       super CachingSerializer
 
        # Target writing stream
        var stream: Writer
@@ -143,9 +143,9 @@ class JsonSerializer
 
        redef fun serialize_reference(object)
        do
-               if not plain_json and refs_map.has_key(object) then
+               if not plain_json and cache.has_object(object) then
                        # if already serialized, add local reference
-                       var id = ref_id_for(object)
+                       var id = cache.id_for(object)
                        stream.write "\{\"__kind\": \"ref\", \"__id\": "
                        stream.write id.to_s
                        stream.write "\}"
@@ -154,26 +154,11 @@ class JsonSerializer
                        serialize object
                end
        end
-
-       # Map of references to already serialized objects.
-       private var refs_map = new StrictHashMap[Serializable,Int]
-
-       # Get the internal serialized reference for this `object`.
-       private fun ref_id_for(object: Serializable): Int
-       do
-               if refs_map.has_key(object) then
-                       return refs_map[object]
-               else
-                       var id = refs_map.length
-                       refs_map[object] = id
-                       return id
-               end
-       end
 end
 
 # Deserializer from a Json string.
 class JsonDeserializer
-       super Deserializer
+       super CachingDeserializer
 
        # Json text to deserialize from.
        private var text: Text
@@ -184,9 +169,6 @@ class JsonDeserializer
        # Depth-first path in the serialized object tree.
        private var path = new Array[JsonObject]
 
-       # Map of references to already deserialized objects.
-       private var id_to_object = new StrictHashMap[Int, Object]
-
        # Last encountered object reference id.
        #
        # See `id_to_object`.
@@ -215,7 +197,7 @@ class JsonDeserializer
        do
                var id = just_opened_id
                if id == null then return # Register `new_object` only once
-               id_to_object[id] = new_object
+               cache[id] = new_object
        end
 
        # Convert from simple Json object to Nit object
@@ -231,8 +213,8 @@ class JsonDeserializer
                                var id = object["__id"]
                                assert id isa Int
 
-                               assert id_to_object.has_key(id)
-                               return id_to_object[id]
+                               assert cache.has_id(id)
+                               return cache.object_for(id)
                        end
 
                        # obj?
@@ -245,7 +227,7 @@ class JsonDeserializer
                                var class_name = object["__class"]
                                assert class_name isa String
 
-                               assert not id_to_object.has_key(id) else print "Error: Object with id '{id}' of {class_name} is deserialized twice."
+                               assert not cache.has_id(id) else print "Error: Object with id '{id}' of {class_name} is deserialized twice."
 
                                # advance on path
                                path.push object
@@ -291,7 +273,7 @@ end
 redef class Serializable
        private fun serialize_to_json(v: JsonSerializer)
        do
-               var id = v.ref_id_for(self)
+               var id = v.cache.new_id_for(self)
                v.stream.write "\{"
                if not v.plain_json then
                        v.stream.write "\"__kind\": \"obj\", \"__id\": "
@@ -376,7 +358,7 @@ redef class SimpleCollection[E]
        do
                # Register as pseudo object
                if not v.plain_json then
-                       var id = v.ref_id_for(self)
+                       var id = v.cache.new_id_for(self)
                        v.stream.write """{"__kind": "obj", "__id": """
                        v.stream.write id.to_s
                        v.stream.write """, "__class": """"
@@ -426,7 +408,7 @@ redef class Map[K, V]
        redef fun serialize_to_json(v)
        do
                # Register as pseudo object
-               var id = v.ref_id_for(self)
+               var id = v.cache.new_id_for(self)
 
                if v.plain_json then
                        v.stream.write "\{"