Serialize initializers for final fields.

pkg/analyzer/lib/src/summary/summarize_ast.dart

 // Copyright (c) 2016, 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 serialization.summarize_ast;
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/visitor.dart';
 import 'package:analyzer/src/generated/scanner.dart';
 import 'package:analyzer/src/generated/utilities_dart.dart';
@@ skipping 229 matching lines @@
    * (if any).  Otherwise `null`.
    */
   UnlinkedDocumentationCommentBuilder libraryDocumentationComment;
 
   /**
    * The number of slot ids which have been assigned to this compilation unit.
    */
   int numSlots = 0;
 
   /**
+   * A flag indicating whether a variable declaration is in the context of a
+   * field declaration.
+   */
+  bool inFieldContext = false;
+
+  /**
    * Create a slot id for storing a propagated or inferred type.
    */
   int assignTypeSlot() => ++numSlots;
 
   /**
    * Build a [_Scope] object containing the names defined within the body of a
    * class declaration.
    */
   _Scope buildClassMemberScope(NodeList<ClassMember> members) {
     _Scope scope = new _Scope();
@@ skipping 354 matching lines @@
       bool isDeclaredStatic, Comment documentationComment, bool isField) {
     for (VariableDeclaration variable in variables.variables) {
       UnlinkedVariableBuilder b = new UnlinkedVariableBuilder();
       b.isFinal = variables.isFinal;
       b.isConst = variables.isConst;
       b.isStatic = isDeclaredStatic;
       b.name = variable.name.name;
       b.nameOffset = variable.name.offset;
       b.type = serializeTypeName(variables.type);
       b.documentationComment = serializeDocumentation(documentationComment);
-      if (variable.isConst) {
+      if (variable.isConst || variable.isFinal && inFieldContext) {
         Expression initializer = variable.initializer;
         if (initializer != null) {
           b.constExpr = serializeConstExpr(initializer);
         }
       }
       if (variable.initializer != null &&
           (variables.isFinal || variables.isConst)) {
         b.propagatedTypeSlot = assignTypeSlot();
       }
       bool isSemanticallyStatic = !isField || isDeclaredStatic;
@@ skipping 82 matching lines @@
 
   @override
   void visitExportDirective(ExportDirective node) {
     UnlinkedExportNonPublicBuilder b = new UnlinkedExportNonPublicBuilder(
         uriOffset: node.uri.offset, uriEnd: node.uri.end, offset: node.offset);
     exports.add(b);
   }
 
   @override
   void visitFieldDeclaration(FieldDeclaration node) {
-    serializeVariables(node.fields, node.staticKeyword != null,
-        node.documentationComment, true);
+    try {
+      inFieldContext = true;
+      serializeVariables(node.fields, node.staticKeyword != null,
+          node.documentationComment, true);
+    } finally {
+      inFieldContext = false;
+    }
   }
 
   @override
   UnlinkedParamBuilder visitFieldFormalParameter(FieldFormalParameter node) {
     UnlinkedParamBuilder b = serializeParameter(node);
     b.isInitializingFormal = true;
     if (node.type != null || node.parameters != null) {
       b.isFunctionTyped = node.parameters != null;
       if (node.parameters != null) {
         serializeFunctionTypedParameterDetails(b, node.type, node.parameters);
@@ skipping 141 matching lines @@
 /**
  * A [_TypeParameterScope] is a [_Scope] which defines [_ScopedTypeParameter]s.
  */
 class _TypeParameterScope extends _Scope {
   /**
    * Get the number of [_ScopedTypeParameter]s defined in this
    * [_TypeParameterScope].
    */
   int get length => _definedNames.length;
 }