Add support for external summaries bundle in AnalysisDriver.

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/ast/standard_resolution_map.dart';
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/dart/element/type.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/dart/analysis/top_level_declaration.dart';
 import 'package:analyzer/src/dart/constant/evaluation.dart';
 import 'package:analyzer/src/dart/element/element.dart';
 import 'package:analyzer/src/error/codes.dart';
 import 'package:analyzer/src/generated/engine.dart' show AnalysisOptionsImpl;
 import 'package:analyzer/src/generated/resolver.dart' show ResolverErrorCode;
 import 'package:analyzer/src/generated/sdk.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/summary/idl.dart';
+import 'package:analyzer/src/summary/package_bundle_reader.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 'package:typed_mock/typed_mock.dart';
 
 import '../../../utils.dart';
 import '../../context/mock_sdk.dart';
 import 'base.dart';
 
@@ skipping 941 matching lines @@
 library lib;
 part 'foo.dart';
 ''');
 
     AnalysisResult result = await driver.getResult(testFile);
     List<AnalysisError> errors = result.errors;
     expect(errors, hasLength(1));
     expect(errors[0].errorCode, CompileTimeErrorCode.URI_DOES_NOT_EXIST);
   }
 
+  solo_test_externalSummaries() async {

[Brian Wilkerson, 2017/04/21 16:19:39]

Remove "solo_"

+    var a = _p('/a.dart');
+    var b = _p('/b.dart');
+    provider.newFile(
+        a,
+        r'''
+class A {}
+''');
+    provider.newFile(
+        b,
+        r'''
+import 'a.dart';
+var a = new A();
+''');
+
+    // Prepare the store with a.dart and everything it needs.
+    SummaryDataStore summaryStore =
+        createAnalysisDriver().test.getSummaryStore(a);
+
+    // There are at least a.dart and dart:core libraries.
+    String aUri = 'file://$a';
+    expect(summaryStore.unlinkedMap.keys, contains(aUri));
+    expect(summaryStore.linkedMap.keys, contains(aUri));
+    expect(summaryStore.unlinkedMap.keys, contains('dart:core'));
+    expect(summaryStore.linkedMap.keys, contains('dart:core'));
+
+    // Remove a.dart from the file system.
+    provider.deleteFile(a);
+
+    // We don't need a.dart file when we analyze with the summary store.
+    // Still no analysis errors.
+    AnalysisDriver driver =
+        createAnalysisDriver(externalSummaries: summaryStore);
+    AnalysisResult result = await driver.getResult(b);
+    expect(result.errors, isEmpty);
+  }
+
   test_generatedFile() async {
     Uri uri = Uri.parse('package:aaa/foo.dart');
     String templatePath = _p('/aaa/lib/foo.dart');
     String generatedPath = _p('/generated/aaa/lib/foo.dart');
 
     provider.newFile(
         templatePath,
         r'''
 a() {}
 b() {}
@@ skipping 1704 matching lines @@
     var path = _p('/test.dart');
     expect(() {
       driver.removeFile(path);
     }, throwsStateError);
   }
 
   String _p(String path) => provider.convertPath(path);
 }
 
 class _SourceMock extends TypedMock implements Source {}