public CodeRunnersController(CourseCodesContext context, IMapper mapper, ICodeExecutionService codeExecutionService) { _context = context ?? throw new System.ArgumentNullException(nameof(context)); _mapper = mapper ?? throw new System.ArgumentNullException(nameof(mapper)); _codeExecutionService = codeExecutionService ?? throw new System.ArgumentNullException(nameof(codeExecutionService)); }