Serialize WarnOnUseElement

pkg/compiler/lib/src/serialization/element_serialization.dart

 // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library dart2js.serialization.elements;
 
 import '../common.dart';
 import '../common/names.dart';
 import '../constants/constructors.dart';
 import '../constants/expressions.dart';
 import '../dart_types.dart';
 import '../diagnostics/messages.dart';
 import '../elements/elements.dart';
 import '../elements/modelx.dart'
-    show DeferredLoaderGetterElementX, ErroneousElementX;
+    show
+        DeferredLoaderGetterElementX,
+        ErroneousElementX,
+        WarnOnUseElementX,
+        WrappedMessage;
 import 'constant_serialization.dart';
 import 'keys.dart';
 import 'modelz.dart';
 import 'serialization.dart';
 import 'serialization_util.dart';
 
 /// Enum kinds used for encoding [Element]s.
 enum SerializedElementKind {
   ERROR,
   LIBRARY,
@@ skipping 22 matching lines @@
   LOCAL_FUNCTION,
   TYPEDEF,
   TYPEVARIABLE,
   PARAMETER,
   INITIALIZING_FORMAL,
   IMPORT,
   EXPORT,
   PREFIX,
   DEFERRED_LOAD_LIBRARY,
   LOCAL_VARIABLE,
+  WARN_ON_USE,
   EXTERNAL_LIBRARY,
   EXTERNAL_LIBRARY_MEMBER,
   EXTERNAL_CLASS_MEMBER,
   EXTERNAL_CONSTRUCTOR,
 }
 
 /// Set of serializers used to serialize different kinds of elements by
 /// encoding into them into [ObjectEncoder]s.
 ///
 /// This class is called from the [Serializer] when an [Element] needs
 /// serialization. The [ObjectEncoder] ensures that any [Element], [DartType],
 /// and [ConstantExpression] that the serialized [Element] depends upon are also
 /// serialized.
 const List<ElementSerializer> ELEMENT_SERIALIZERS = const [
   const ErrorSerializer(),
   const LibrarySerializer(),
   const CompilationUnitSerializer(),
   const PrefixSerializer(),
   const DeferredLoadLibrarySerializer(),
   const ClassSerializer(),
   const ConstructorSerializer(),
   const FieldSerializer(),
   const FunctionSerializer(),
   const TypedefSerializer(),
   const TypeVariableSerializer(),
   const ParameterSerializer(),
   const ImportSerializer(),
   const ExportSerializer(),
   const LocalVariableSerializer(),
+  const WarnOnUseSerializer(),
 ];
 
 /// Interface for a function that can serialize a set of element kinds.
 abstract class ElementSerializer {
   /// Returns the [SerializedElementKind] for [element] if this serializer
   /// supports serialization of [element] or `null` otherwise.
   SerializedElementKind getSerializedKind(Element element);
 
   /// Serializes [element] into the [encoder] using the [kind] computed
   /// by [getSerializedKind].
@@ skipping 112 matching lines @@
       return SerializedElementKind.ERROR;
     }
     return null;
   }
 
   void serialize(ErroneousElement element, ObjectEncoder encoder,
       SerializedElementKind kind) {
     encoder.setElement(Key.ENCLOSING, element.enclosingElement);
     encoder.setString(Key.NAME, element.name);
     encoder.setEnum(Key.MESSAGE_KIND, element.messageKind);
-    if (element.messageArguments.isNotEmpty) {
-      MapEncoder mapEncoder = encoder.createMap(Key.ARGUMENTS);
-      element.messageArguments.forEach((String key, var value) {
-        mapEncoder.setString(key, Message.convertToString(value));
-      });
-    }
+    serializeMessageArguments(encoder, Key.ARGUMENTS, element.messageArguments);
   }
 }
 
 class LibrarySerializer implements ElementSerializer {
   const LibrarySerializer();
 
   SerializedElementKind getSerializedKind(Element element) {
     if (element.isLibrary) {
       return SerializedElementKind.LIBRARY;
     }
@@ skipping 507 matching lines @@
     }
     return null;
   }
 
   void serialize(GetterElement element, ObjectEncoder encoder,
       SerializedElementKind kind) {
     encoder.setElement(Key.PREFIX, element.enclosingElement);
   }
 }
 
+class WarnOnUseSerializer implements ElementSerializer {
+  const WarnOnUseSerializer();
+
+  SerializedElementKind getSerializedKind(Element element) {
+    if (element.isWarnOnUse) {
+      return SerializedElementKind.WARN_ON_USE;
+    }
+    return null;
+  }
+
+  void serialize(WarnOnUseElementX element, ObjectEncoder encoder,
+      SerializedElementKind kind) {
+    encoder.setElement(Key.ENCLOSING, element.enclosingElement);
+    encoder.setElement(Key.ELEMENT, element.wrappedElement);
+    serializeWrappedMessage(encoder, Key.WARNING, element.warning);
+    serializeWrappedMessage(encoder, Key.INFO, element.info);
+  }
+}
+
 /// Utility class for deserializing [Element]s.
 ///
 /// This is used by the [Deserializer].
 class ElementDeserializer {
   /// Deserializes an [Element] from an [ObjectDecoder].
   ///
   /// The class is called from the [Deserializer] when an [Element]
   /// needs deserialization. The [ObjectDecoder] ensures that any [Element],
   /// [DartType], and [ConstantExpression] that the deserialized [Element]
   /// depends upon are available.
   static Element deserialize(
       ObjectDecoder decoder, SerializedElementKind elementKind) {
     switch (elementKind) {
       case SerializedElementKind.ERROR:
         Element enclosing = decoder.getElement(Key.ENCLOSING);
         String name = decoder.getString(Key.NAME);
         MessageKind messageKind =
             decoder.getEnum(Key.MESSAGE_KIND, MessageKind.values);
-        Map<String, String> arguments = <String, String>{};
-        MapDecoder mapDecoder = decoder.getMap(Key.ARGUMENTS, isOptional: true);
-        if (mapDecoder != null) {
-          mapDecoder.forEachKey((String key) {
-            arguments[key] = mapDecoder.getString(key);
-          });
-        }
+        Map<String, String> arguments =
+            deserializeMessageArguments(decoder, Key.ARGUMENTS);
         return new ErroneousElementX(messageKind, arguments, name, enclosing);
       case SerializedElementKind.LIBRARY:
         return new LibraryElementZ(decoder);
       case SerializedElementKind.COMPILATION_UNIT:
         return new CompilationUnitElementZ(decoder);
       case SerializedElementKind.CLASS:
         return new ClassElementZ(decoder);
       case SerializedElementKind.ENUM:
         return new EnumClassElementZ(decoder);
       case SerializedElementKind.NAMED_MIXIN_APPLICATION:
@@ skipping 50 matching lines @@
       case SerializedElementKind.IMPORT:
         return new ImportElementZ(decoder);
       case SerializedElementKind.EXPORT:
         return new ExportElementZ(decoder);
       case SerializedElementKind.PREFIX:
         return new PrefixElementZ(decoder);
       case SerializedElementKind.DEFERRED_LOAD_LIBRARY:
         return new DeferredLoaderGetterElementX(decoder.getElement(Key.PREFIX));
       case SerializedElementKind.LOCAL_VARIABLE:
         return new LocalVariableElementZ(decoder);
+      case SerializedElementKind.WARN_ON_USE:
+        Element enclosing = decoder.getElement(Key.ENCLOSING);
+        Element element = decoder.getElement(Key.ELEMENT);
+        WrappedMessage warning =
+            deserializeWrappedMessage(decoder, Key.WARNING);
+        WrappedMessage info = deserializeWrappedMessage(decoder, Key.INFO);
+        return new WarnOnUseElementX(warning, info, enclosing, element);
       case SerializedElementKind.EXTERNAL_LIBRARY:
       case SerializedElementKind.EXTERNAL_LIBRARY_MEMBER:
       case SerializedElementKind.EXTERNAL_CLASS_MEMBER:
       case SerializedElementKind.EXTERNAL_CONSTRUCTOR:
         break;
     }
     throw new UnsupportedError("Unexpected element kind '${elementKind}.");
   }
 }