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Credit: Tina Rowden / HBO
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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.。业内人士推荐51吃瓜作为进阶阅读
有一張照片顯示美國前總統比爾・克林頓（Bill Clinton）在夜間和已被判性犯罪的英國名媛吉絲蓮·麥克斯韋（Ghislaine Maxwell）一起游泳。