Store index into AnalysisDriverResolvedUnit and return in AnalysisResult.

pkg/analyzer/test/src/dart/analysis/driver_test.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 analyzer.test.driver;
 
 import 'dart:async';
 import 'dart:convert';
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/error/error.dart';
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer/file_system/memory_file_system.dart';
 import 'package:analyzer/src/dart/analysis/byte_store.dart';
 import 'package:analyzer/src/dart/analysis/driver.dart';
 import 'package:analyzer/src/dart/analysis/file_state.dart';
 import 'package:analyzer/src/dart/analysis/status.dart';
 import 'package:analyzer/src/error/codes.dart';
 import 'package:analyzer/src/generated/engine.dart' show AnalysisOptionsImpl;
 import 'package:analyzer/src/generated/source.dart';
+import 'package:analyzer/src/summary/idl.dart';
 import 'package:convert/convert.dart';
 import 'package:crypto/crypto.dart';
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
 import '../../context/mock_sdk.dart';
 import 'base.dart';
 
 main() {
   defineReflectiveSuite(() {
@@ skipping 398 matching lines @@
     {
       AnalysisError error = result.errors[0];
       expect(error.offset, 13);
       expect(error.length, 2);
       expect(error.errorCode, HintCode.UNUSED_LOCAL_VARIABLE);
       expect(error.message, "The value of the local variable 'vv' isn't used.");
       expect(error.correction, "Try removing the variable, or using it.");
     }
   }
 
+  test_getResult_hasIndex() async {
+    String content = r'''
+foo(int p) {}
+main() {
+  foo(42);
+}
+''';
+    addTestFile(content);
+
+    AnalysisResult result = await driver.getResult(testFile);
+
+    AnalysisDriverUnitIndex index = result.index;
+    int unitId = index.strings.indexOf('package:test/test.dart');
+    int fooId = index.strings.indexOf('foo');
+    expect(unitId, isNonNegative);
+    expect(fooId, isNonNegative);
+  }
+
   test_getResult_inferTypes_finalField() async {
     addTestFile(
         r'''
 class C {
   final f = 42;
 }
 ''',
         priority: true);
     await _waitForIdle();
 
@@ skipping 611 matching lines @@
     await _waitForIdle();
 
     expect(allResults, hasLength(1));
     AnalysisResult result = allResults.single;
     expect(result.path, testFile);
     expect(result.uri.toString(), 'package:test/test.dart');
     expect(result.content, isNull);
     expect(result.contentHash, _md5(content));
     expect(result.unit, isNull);
     expect(result.errors, hasLength(0));
+    expect(result.index, isNotNull);
   }
 
   test_results_status() async {
     addTestFile('int f() => 42;');
     await _waitForIdle();
 
     expect(allStatuses, hasLength(2));
     expect(allStatuses[0].isAnalyzing, isTrue);
     expect(allStatuses[0].isIdle, isFalse);
     expect(allStatuses[1].isAnalyzing, isFalse);
@@ skipping 89 matching lines @@
   String _p(String path) => provider.convertPath(path);
 
   Future<Null> _waitForIdle() async {
     await idleStatusMonitor.signal;
   }
 
   static String _md5(String content) {
     return hex.encode(md5.convert(UTF8.encode(content)).bytes);
   }
 }