TapTechNews July 29th news, the 1.80.0 version of the Rust language was released on July 25th, and this version has seen significant upgrades in terms of efficiency, code security, and flexibility.
TapTechNews learned that this version has added two types, LazyCell and LazyLock, which can delay the initialization of data until the first access, allowing the software to load resources on demand for immediate calculation, thereby significantly improving the start-up speed and operating efficiency of large applications, and also helping to reduce the overall RAM usage of the software.
Specifically, the LazyLock type is suitable for multi-threaded environments with greater performance overhead; LazyCell can only be used in a single-threaded environment, but with less performance overhead. Compared to the same type of delayed initialization such as OnceCell/OnceLock added in Rust 1.70, LazyCell/LazyLock itself comes with an initialization logic, so it no longer needs to be initialized through external methods, and it is relatively more convenient to use.
In addition, Rust 1.80 can also enhance the correctness and reliability of the code by checking the cfg name and value, and the relevant functions can detect and warn developers of misspelling the cfg name/value, avoiding compilation errors due to such simple mistakes, thereby improving the overall quality of the code and development efficiency.
TapTechNews also noticed that Rust 1.80 has also introduced a new feature called Exclusive Range Mode (ExclusiveRange). Developers can now use the a..b or..b syntax to handle consecutive ranges, somewhat similar to the Range and RangeTo expressions, allowing no gaps/overlaps between the ranges, so that the code is clearer and maintains the consistency of the writing logic.