From: Alexis Laferrière <alexis.laf@xymus.net>
Date: Sat, 1 Feb 2014 18:50:33 +0000 (-0500)
Subject: frontend: intro the serialization phase
X-Git-Tag: v0.6.4~16^2~13
X-Git-Url: http://nitlanguage.org

frontend: intro the serialization phase

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

diff --git a/src/frontend.nit b/src/frontend.nit
index 04254a7..a5ebfc6 100644
--- a/src/frontend.nit
+++ b/src/frontend.nit
@@ -25,6 +25,7 @@ import typing
 import auto_super_init
 import div_by_zero
 import cached
+import serialization_phase
 
 redef class ToolContext
 	# FIXME: there is conflict in linex in nitc, so use this trick to force invocation
diff --git a/src/literal.nit b/src/literal.nit
index 668f72a..0e08350 100644
--- a/src/literal.nit
+++ b/src/literal.nit
@@ -20,9 +20,10 @@ module literal
 import parser
 import toolcontext
 import phase
+import serialization_phase
 
 redef class ToolContext
-	var literal_phase: Phase = new LiteralPhase(self, null)
+	var literal_phase: Phase = new LiteralPhase(self, [serialization_phase])
 end
 
 private class LiteralPhase
diff --git a/src/serialization_phase.nit b/src/serialization_phase.nit
new file mode 100644
index 0000000..f129a40
--- /dev/null
+++ b/src/serialization_phase.nit
@@ -0,0 +1,70 @@
+# This file is part of NIT ( http://www.nitlanguage.org ).
+#
+# Copyright 2013 Jean-Philippe Caissy <jpcaissy@piji.ca>
+# Copyright 2013 Guillaume Auger <jeho@resist.ca>
+# Copyright 2014 Alexis Laferrière <alexis.laf@xymus.net>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Phase generating methods to 
+module serialization_phase
+
+import phase
+import parser_util
+
+redef class ToolContext
+	var serialization_phase: Phase = new SerializationPhase(self, null)
+end
+
+# TODO automaticaly add Serializable as a super class
+# TODO Sequences
+# TODO add annotations on attributes (volatile, sensitive or do_not_serialize?)
+private class SerializationPhase
+	super Phase
+
+	redef fun process_annotated_node(nclassdef, nat)
+	do
+		# Skip if we are not interested
+		if nat.n_atid.n_id.text != "auto_serializable" then return
+		if not nclassdef isa AStdClassdef then
+			toolcontext.error(nclassdef.location, "Syntax error: only a concrete class can be automatically serialized.")
+			return
+		end
+
+		generate_serialization_method(nclassdef)
+	end
+
+	private fun generate_serialization_method(nclassdef: AClassdef)
+	do
+		var npropdefs = nclassdef.n_propdefs
+
+		var code = new Array[String]
+		code.add "redef fun core_serialize_to(v)"
+		code.add "do"
+		code.add "	super"
+
+		for attribute in npropdefs do if attribute isa AAttrPropdef then
+			var name
+			if attribute.n_id == null then 
+				name = attribute.n_id2.text
+			else name = attribute.n_id.text
+
+			code.add "	v.serialize_attribute(\"{name}\", {name})"
+		end
+
+		code.add "end"
+
+		# Create method Node and add it to the AST
+		npropdefs.push(toolcontext.parse_propdef(code.join("\n")))
+	end
+end