每日英语(2019-03-11)

每日短语 Smomobie(看手机的怪物)
A smombie is a person who walks around with their head bown down,writing messages or playing games on their phone and not paying any attention to the world around them.
Eg1: I am too terrified to drive past the college these days.You never know when a smombie’s going step into the road in front of the car.
每日名言 There you will stand ten feet’s tall, I will say I knew it all along. 你会站在成功之巅峰,而我会告诉你我早就预料到了
每日新闻 Oxide: The Essence of Rust
Rust is a major advancement in industrial programming languages(工业编程语言的一大进步) due in large part to its success in bridging(弥合) the gap between low-level systems programming and high-level application programming. This success has ultimately empowered(最终可以使) programmers to more easily build reliable and efficient software, and at its heart lies a novel approach to ownership that balances type system expressivity with usability(其核心是一种新颖的所有权方法).
【每日英语(2019-03-11)】In this work, we set out to capture the essence of this model of ownership by developing a type systems account of Rust's borrow checker. To that end, we present(提出了) Oxide, a formalized programming language close to source-level Rust (but with fully-annotated types(注释类型)). This presentation takes a new view of lifetimes as approximate provenances of references, and our type system is able to automatically compute this information through a flow-sensitive substructural typing judgment for which we prove syntactic type safety using progress and preservation. The result is a simpler formulation of borrow checking(借阅检查) - including recent features such as non-lexical(非词汇) lifetimes - that we hope researchers will be able to use as the basis for work on Rust.

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