17:15, 27 февраля 2026Мир
Abstract:Package managers are legion. Every programming language and operating system has its own solution, each with subtly different semantics for dependency resolution. This fragmentation prevents multilingual projects from expressing precise dependencies across language ecosystems; it leaves external system and hardware dependencies implicit and unversioned; it obscures security vulnerabilities that lie in the full dependency graph. We present the \textit{Package Calculus}, a formalism for dependency resolution that unifies the core semantics of diverse package managers. Through a series of formal reductions, we show how this core is expressive enough to model the diversity that real-world package managers employ in their dependency expression languages. By using the Package Calculus as the intermediate representation of dependencies, we enable translation between distinct package managers and resolution across ecosystems.
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当古老的套色工艺遇上现代商业IP，这种“反差萌”瞬间击穿了年轻人的审美壁垒。
另外，主管食環署的環境及生態局局長謝展寰接受官方香港電台採訪時說，一些餐廳環境狹窄，便不一定適合申請加註。局方將在申請餐廳的面積要求方面加以考慮。
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