Issue 26629. Detect cache inconsistency in GetContentTask.

pkg/analyzer/lib/src/task/dart.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 analyzer.src.task.dart;
 
 import 'dart:collection';
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/token.dart';
@@ skipping 850 matching lines @@
  * In addition to what is true of a [RESOLVED_UNIT8], tasks that use this value
  * as an input can assume that the types of static variables have been inferred.
  *
  * The result is only available for [LibrarySpecificUnit]s.
  */
 final ResultDescriptor<CompilationUnit> RESOLVED_UNIT9 =
     new ResultDescriptor<CompilationUnit>('RESOLVED_UNIT9', null,
         cachingPolicy: AST_CACHING_POLICY);
 
 /**
+ * List of all `RESOLVED_UNITx` results.
+ */
+final List<ResultDescriptor<CompilationUnit>> RESOLVED_UNIT_RESULTS =
+    <ResultDescriptor<CompilationUnit>>[
+  RESOLVED_UNIT1,
+  RESOLVED_UNIT2,
+  RESOLVED_UNIT3,
+  RESOLVED_UNIT4,
+  RESOLVED_UNIT5,
+  RESOLVED_UNIT6,
+  RESOLVED_UNIT7,
+  RESOLVED_UNIT8,
+  RESOLVED_UNIT9,
+  RESOLVED_UNIT10,
+  RESOLVED_UNIT11,
+  RESOLVED_UNIT12,
+  RESOLVED_UNIT13,
+  RESOLVED_UNIT
+];
+
+/**
  * The errors produced while scanning a compilation unit.
  *
  * The list will be empty if there were no errors, but will not be `null`.
  *
  * The result is only available for [Source]s representing a compilation unit.
  */
 final ListResultDescriptor<AnalysisError> SCAN_ERRORS =
     new ListResultDescriptor<AnalysisError>(
         'SCAN_ERRORS', AnalysisError.NO_ERRORS);
 
@@ skipping 4690 matching lines @@
   }
 
   /**
    * Return a map from the names of the inputs of this kind of task to the task
    * input descriptors describing those inputs for a task with the given
    * [target].
    */
   static Map<String, TaskInput> buildInputs(AnalysisTarget target) {
     if (target is Source) {
       return <String, TaskInput>{
-        CONTENT_INPUT_NAME: CONTENT.of(target),
+        CONTENT_INPUT_NAME: CONTENT.of(target, flushOnAccess: true),
         MODIFICATION_TIME_INPUT: MODIFICATION_TIME.of(target)
       };
     } else if (target is DartScript) {
       // This task does not use the following input; it is included only to add
       // a dependency between this value and the containing source so that when
       // the containing source is modified these results will be invalidated.
       Source source = target.source;
       return <String, TaskInput>{
         '-': DART_SCRIPTS.of(source),
         MODIFICATION_TIME_INPUT: MODIFICATION_TIME.of(source)
@@ skipping 375 matching lines @@
 
   @override
   bool moveNext() {
     if (_newSources.isEmpty) {
       return false;
     }
     currentTarget = _newSources.removeLast();
     return true;
   }
 }