public UsingsSorter(StyleCopSettings settings, SemanticModel semanticModel, CompilationUnitSyntax compilationUnit, ImmutableArray <SyntaxTrivia> fileHeader) { this.separateSystemDirectives = settings.OrderingRules.SystemUsingDirectivesFirst; this.insertBlankLinesBetweenGroups = settings.OrderingRules.BlankLinesBetweenUsingGroups == OptionSetting.Require; this.semanticModel = semanticModel; this.fileHeader = fileHeader; this.sourceMap = SourceMap.FromCompilationUnit(compilationUnit); this.ProcessUsingDirectives(compilationUnit.Usings); this.ProcessMembers(compilationUnit.Members); }