illegalStateFor("append")

        open fun <T> resolveScriptsForProject(identityPath: Path, action: () -> T): T =
            illegalStateFor("resolveScriptsForProject")

        open fun <T> runCollectingFingerprintForProject(identityPath: Path, action: () -> T): T =
            illegalStateFor("collectFingerprintForProject")

        abstract fun dispose(): WritingState

        private