override fun start()

in reactor/Core/src/jetbrains/mps/logic/reactor/core/internal/EvaluationSessionImpl.kt [105:119]

• 13 lines of code
• 2 McCabe index (conditional complexity)

        override fun start(supervisor: Supervisor): EvaluationResult {
            var session = Backend.ourBackend.ourSession.get()
            if (session != null) throw IllegalStateException("session already active")

            session = EvaluationSessionImpl(program, supervisor, evaluationTrace, profiler, parameters)
            Backend.ourBackend.ourSession.set(session)
            try {
                val main = parameters[ParameterKey.of("main", Constraint::class.java)] as Constraint
                return session.launch(main)
            }
            finally {
                Backend.ourBackend.ourSession.set(null)
            }

        }