Resynthesize enum constant field evaluation results.

pkg/analyzer/test/src/summary/resynthesize_test.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 test.src.serialization.elements_test;
 
 import 'dart:convert';
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/dart/element/type.dart';
 import 'package:analyzer/src/dart/ast/ast.dart';
 import 'package:analyzer/src/dart/element/element.dart';
 import 'package:analyzer/src/dart/element/member.dart';
 import 'package:analyzer/src/dart/element/type.dart';
+import 'package:analyzer/src/generated/constant.dart' show DartObject;
 import 'package:analyzer/src/generated/element_handle.dart';
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/resolver.dart'
     show Namespace, TypeProvider;
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/summary/idl.dart';
 import 'package:analyzer/src/summary/resynthesize.dart';
 import 'package:analyzer/src/summary/summarize_elements.dart';
 import 'package:unittest/unittest.dart';
 
@@ skipping 464 matching lines @@
     }
     if (original.redirectedConstructor == null) {
       expect(resynthesized.redirectedConstructor, isNull, reason: desc);
     } else {
       compareConstructorElements(resynthesized.redirectedConstructor,
           original.redirectedConstructor, '$desc redirectedConstructor');
     }
     checkPossibleMember(resynthesized, original, desc);
   }
 
+  void compareConstValues(
+      DartObject resynthesized, DartObject original, String desc) {
+    if (original == null) {
+      expect(resynthesized, isNull, reason: desc);
+    } else {
+      expect(resynthesized, isNotNull, reason: desc);
+      compareTypes(resynthesized.type, original.type, desc);
+      expect(resynthesized.hasKnownValue, original.hasKnownValue, reason: desc);
+      if (original.isNull) {
+        expect(resynthesized.isNull, isTrue, reason: desc);
+      } else if (original.toBoolValue() != null) {
+        expect(resynthesized.toBoolValue(), original.toBoolValue(),
+            reason: desc);
+      } else if (original.toIntValue() != null) {
+        expect(resynthesized.toIntValue(), original.toIntValue(), reason: desc);
+      } else if (original.toDoubleValue() != null) {
+        expect(resynthesized.toDoubleValue(), original.toDoubleValue(),
+            reason: desc);
+      } else if (original.toListValue() != null) {
+        List<DartObject> resynthesizedList = resynthesized.toListValue();
+        List<DartObject> originalList = original.toListValue();
+        expect(resynthesizedList, hasLength(originalList.length));
+        for (int i = 0; i < originalList.length; i++) {
+          compareConstValues(resynthesizedList[i], originalList[i], desc);
+        }
+      } else if (original.toMapValue() != null) {
+        Map<DartObject, DartObject> resynthesizedMap =
+            resynthesized.toMapValue();
+        Map<DartObject, DartObject> originalMap = original.toMapValue();
+        expect(resynthesizedMap, hasLength(originalMap.length));
+        List<DartObject> resynthesizedKeys = resynthesizedMap.keys.toList();
+        List<DartObject> originalKeys = originalMap.keys.toList();
+        for (int i = 0; i < originalKeys.length; i++) {
+          DartObject resynthesizedKey = resynthesizedKeys[i];
+          DartObject originalKey = originalKeys[i];
+          compareConstValues(resynthesizedKey, originalKey, desc);
+          DartObject resynthesizedValue = resynthesizedMap[resynthesizedKey];
+          DartObject originalValue = originalMap[originalKey];
+          compareConstValues(resynthesizedValue, originalValue, desc);
+        }
+      } else if (original.toStringValue() != null) {
+        expect(resynthesized.toStringValue(), original.toStringValue(),
+            reason: desc);
+      } else if (original.toSymbolValue() != null) {
+        expect(resynthesized.toSymbolValue(), original.toSymbolValue(),
+            reason: desc);
+      } else if (original.toTypeValue() != null) {
+        fail('Not implemented');
+      }
+    }
+  }
+
   void compareElementAnnotations(ElementAnnotationImpl resynthesized,
       ElementAnnotationImpl original, String desc) {
     expect(resynthesized.element, isNotNull, reason: desc);
     expect(resynthesized.element.kind, original.element.kind, reason: desc);
     expect(resynthesized.element.location, original.element.location,
         reason: desc);
     expect(resynthesized.compilationUnit, isNotNull, reason: desc);
     expect(resynthesized.compilationUnit.location,
         original.compilationUnit.location,
         reason: desc);
@@ skipping 377 matching lines @@
       VariableElement resynthesized, VariableElement original, String desc) {
     compareElements(resynthesized, original, desc);
     compareTypes(resynthesized.type, original.type, desc);
     // TODO(scheglov) VariableMember.initializer is not implemented
     if (original is! VariableMember) {
       compareFunctionElements(
           resynthesized.initializer, original.initializer, desc);
     }
     VariableElementImpl originalActual = getActualElement(original, desc);
     if (originalActual is ConstVariableElement) {
-      VariableElementImpl resynthesizedActual =
-          getActualElement(resynthesized, desc);
-      Expression initializer = resynthesizedActual.constantInitializer;
-      if (constantInitializersAreInvalid) {
-        _assertUnresolvedIdentifier(initializer, desc);
+      Element oEnclosing = original.enclosingElement;
+      if (oEnclosing is ClassElement && oEnclosing.isEnum) {
+        compareConstValues(
+            resynthesized.constantValue, original.constantValue, desc);
       } else {
-        compareConstAsts(initializer, originalActual.constantInitializer,
-            '$desc initializer');
+        VariableElementImpl resynthesizedActual =
+            getActualElement(resynthesized, desc);
+        Expression initializer = resynthesizedActual.constantInitializer;
+        if (constantInitializersAreInvalid) {
+          _assertUnresolvedIdentifier(initializer, desc);
+        } else {
+          compareConstAsts(initializer, originalActual.constantInitializer,
+              '$desc initializer');
+        }
       }
     }
     checkPossibleMember(resynthesized, original, desc);
     checkPossibleLocalElements(resynthesized, original);
   }
 
   /**
    * Serialize the given [library] into a summary.  Then create a
    * [_TestSummaryResynthesizer] which can deserialize it, along with any
    * references it makes to `dart:core`.
@@ skipping 2837 matching lines @@
       fail('Unexpectedly tried to get unlinked summary for $uri');
     }
     return serializedUnit;
   }
 
   @override
   bool hasLibrarySummary(String uri) {
     return true;
   }
 }