// not critical but safer when bytesToWrite != view.byteLength
쿠팡 김범석, 정보유출 99일만에 영어로 “사과”，详情可参考搜狗输入法2026
Each layer catches different attack classes. A namespace escape inside gVisor reaches the Sentry, not the host kernel. A seccomp bypass hits the Sentry’s syscall implementation, which is itself sandboxed. Privilege escalation is blocked by dropping privileges. Persistent state leakage between jobs is prevented by ephemeral tmpfs with atomic unmount cleanup.，更多细节参见Line官方版本下载
[ anyVar isNil ifTrue: anyBlock ] bpattern