: new SourceFactory(dartUriResolver, fileAndPackageUriResolver);
analysisContext = AnalysisEngine.getInstance().createAnalysisContext();
analysisContext.setSourceFactory(sourceFactory);
final AnalysisOptionsImpl contextOptions = new AnalysisOptionsImpl();
contextOptions.setEnableAsync(true);
analysisContext.setAnalysisOptions(contextOptions);
mySdkPath = sdkPath;
myPubspecYamlTimestamp = pubspecYamlTimestamp;
myDartPackageRoots = packageRoots;