Merge: examples/fibonacci: fix off-by-one fibonacci

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

diff --git a/lib/serialization/serialization.nit b/lib/serialization/serialization.nit
index e3ca6b3..8ae8d2f 100644 (file)
--- a/lib/serialization/serialization.nit
+++ b/lib/serialization/serialization.nit
@@ -46,6 +46,7 @@ module serialization is
        new_annotation auto_serializable
        new_annotation serialize
        new_annotation noserialize
+       new_annotation serialize_as
 end
 
 # Abstract serialization service to be sub-classed by specialized services.
@@ -107,6 +108,7 @@ abstract class Deserializer
        # All refinement should look for a precise `class_name` and call super
        # on unsupported classes.
        protected fun deserialize_class(class_name: String): nullable Object do
+               if class_name == "Error" then return new Error.from_deserializer(self)
                return deserialize_class_intern(class_name)
        end
 
@@ -191,7 +193,7 @@ interface Serializable
        # Create an instance of this class from the `deserializer`
        #
        # This constructor is refined by subclasses to correctly build their instances.
-       init from_deserializer(deserializer: Deserializer) do end
+       init from_deserializer(deserializer: Deserializer) is nosuper do end
 end
 
 redef interface Object
@@ -220,7 +222,7 @@ redef class Char super DirectSerializable end
 redef class Int super DirectSerializable end
 redef class Float super DirectSerializable end
 redef class NativeString super DirectSerializable end
-redef class String super DirectSerializable end
+redef class Text super DirectSerializable end
 redef class SimpleCollection[E] super Serializable end
 redef class Map[K, V] super Serializable end
 
@@ -257,3 +259,25 @@ redef class Ref[E]
                v.serialize_attribute("item", first)
        end
 end
+
+redef class Error
+       super Serializable
+
+       redef init from_deserializer(v)
+       do
+               v.notify_of_creation self
+
+               var message = v.deserialize_attribute("message")
+               if not message isa String then message = ""
+               init message
+
+               var cause = v.deserialize_attribute("cause")
+               if cause isa nullable Error then self.cause = cause
+       end
+
+       redef fun core_serialize_to(v)
+       do
+               v.serialize_attribute("message", message)
+               v.serialize_attribute("cause", cause)
+       end
+end