| // import 'dart:convert'; |
| // import 'dart:io'; |
| // |
| // import 'package:analyzer/file_system/physical_file_system.dart'; |
| // import 'package:analyzer/src/dart/analysis/analysis_context_collection.dart'; |
| // import 'package:analyzer/src/dart/analysis/byte_store.dart'; |
| // import 'package:analyzer/src/dart/analysis/file_content_cache.dart'; |
| // import 'package:analyzer/src/dart/analysis/unlinked_unit_store.dart'; |
| // import 'package:vm_service/vm_service.dart'; |
| // |
| // import 'heap/analysis.dart'; |
| // import 'heap/format.dart'; |
| // import 'heap/load.dart'; |
| // |
| // void main() async { |
| // var path = '/Users/scheglov/dart/flutter_plugins/packages/camera'; |
| // // var path = '/Users/scheglov/dart/flutter_plugins/packages'; |
| // |
| // while (true) { |
| // var resourceProvider = PhysicalResourceProvider.INSTANCE; |
| // var fileContentCache = FileContentCache(resourceProvider); |
| // var unlinkedUnitStore = UnlinkedUnitStoreImpl(); |
| // |
| // var collection = AnalysisContextCollectionImpl( |
| // byteStore: MemoryByteStore(), |
| // resourceProvider: resourceProvider, |
| // fileContentCache: fileContentCache, |
| // unlinkedUnitStore: unlinkedUnitStore, |
| // sdkPath: '/Users/scheglov/Applications/dart-sdk', |
| // // performanceLog: PerformanceLog(stdout), |
| // includedPaths: [ |
| // path, |
| // ], |
| // // packagesFile: |
| // // '/Users/scheglov/dart/flutter_plugins/packages/camera/camera/.dart_tool/package_config.json', |
| // ); |
| // |
| // // print('[Analysis contexts: ${collection.contexts.length}]'); |
| // |
| // var timer = Stopwatch()..start(); |
| // for (var analysisContext in collection.contexts) { |
| // // print(analysisContext.contextRoot.root.path); |
| // for (var filePath in analysisContext.contextRoot.analyzedFiles()) { |
| // if (filePath.endsWith('.dart')) { |
| // // print(' $filePath'); |
| // var analysisSession = analysisContext.currentSession; |
| // await analysisSession.getResolvedUnit(filePath); |
| // } |
| // } |
| // } |
| // timer.stop(); |
| // print('[time: ${timer.elapsedMilliseconds} ms]'); |
| // |
| // { |
| // var timer = Stopwatch()..start(); |
| // var chunks = await loadFromUri(Uri.parse('http://127.0.0.1:5000')); |
| // // final length = chunks |
| // // .map((e) => e.lengthInBytes) |
| // // .fold<int>(0, (prev, e) => prev + e); |
| // // print( |
| // // ' [${timer.elapsedMilliseconds} ms] ' |
| // // 'Downloaded heap snapshot, ${length / 1024 / 1024} MB.', |
| // // ); |
| // |
| // final graph = HeapSnapshotGraph.fromChunks(chunks); |
| // print(' [${timer.elapsedMilliseconds} ms] Created HeapSnapshotGraph.'); |
| // print(' externalSize: ${graph.externalSize}'); |
| // print(' shallowSize: ${graph.shallowSize}'); |
| // print(' Objects: ${graph.objects.length}'); |
| // |
| // final analysis = Analysis(graph); |
| // print(' [${timer.elapsedMilliseconds} ms] Created Analysis.'); |
| // |
| // { |
| // print('All objects.'); |
| // final objects = analysis.reachableObjects; |
| // final stats = analysis.generateObjectStats(objects); |
| // print(formatHeapStats(stats, maxLines: 20)); |
| // print(''); |
| // } |
| // |
| // { |
| // print('ElementImpl(s)'); |
| // var fileStateList = analysis.filter( |
| // analysis.reachableObjects, |
| // (object) { |
| // return object.klass.name.endsWith('ElementImpl'); |
| // }, |
| // ); |
| // analysis.printObjectStats(fileStateList); |
| // print(''); |
| // // final allObjects = analysis.transitiveGraph(fileStateList); |
| // // analysis.printObjectStats(allObjects); |
| // // print(''); |
| // } |
| // |
| // { |
| // print('Version(s)'); |
| // var objectList = analysis.filter( |
| // analysis.reachableObjects, |
| // (object) { |
| // return object.klass.name == 'Version'; |
| // }, |
| // ); |
| // analysis.printObjectStats(objectList); |
| // print(''); |
| // // final allObjects = analysis.transitiveGraph(fileStateList); |
| // // analysis.printObjectStats(allObjects); |
| // // print(''); |
| // |
| // const maxEntries = 10; |
| // final paths = analysis.retainingPathsOf(objectList, 10); |
| // for (int i = 0; i < paths.length; ++i) { |
| // if (maxEntries != -1 && i >= maxEntries) break; |
| // final path = paths[i]; |
| // print('There are ${path.count} retaining paths of'); |
| // print(formatRetainingPath(analysis.graph, paths[i])); |
| // print(''); |
| // } |
| // } |
| // } |
| // } |
| // |
| // // var analysisContext = collection.contextFor(path); |
| // // var unitResult = await analysisContext.currentSession.getResolvedUnit(path); |
| // // unitResult as ResolvedUnitResult; |
| // |
| // // await Future<void>.delayed(const Duration(days: 1)); |
| // } |
| // |
| // extension on Analysis { |
| // void printObjectStats(IntSet objectIds) { |
| // final stats = generateObjectStats(objectIds); |
| // print(formatHeapStats(stats, maxLines: 20)); |
| // print(''); |
| // } |
| // |
| // void printRetainers( |
| // IntSet objectIds, { |
| // int maxEntries = 3, |
| // }) { |
| // final paths = retainingPathsOf(objectIds, 20); |
| // for (int i = 0; i < paths.length; ++i) { |
| // if (i >= maxEntries) break; |
| // final path = paths[i]; |
| // print('There are ${path.count} retaining paths of'); |
| // print(formatRetainingPath(graph, paths[i])); |
| // print(''); |
| // } |
| // } |
| // |
| // IntSet filterByClass( |
| // IntSet objectIds, { |
| // required Uri libraryUri, |
| // required String name, |
| // }) { |
| // return filter(reachableObjects, (object) { |
| // return object.klass.libraryUri == libraryUri && object.klass.name == name; |
| // }); |
| // } |
| // } |
