Rust 1.2 穩定版發布，Mozilla 編程語言

Rust 1.2 穩定版發布了，該版本對編譯器進行改進，包含兩方面主要的性能提升：

• An across-the-board improvementto real-world compiler performance. Representative crates include hyper (compiles 1.16x faster), html5ever (1.62x faster), regex (1.32x faster) and rust-encoding (1.35x faster). You can explore some of this performance data at Nick Cameron’s preliminary tracking site , using dates 2015-05-15 to 2015-06-25.

• Parallel codegenis now working , and produces a 33% speedup when bootstrapping on a 4 core machine. Parallel codegen is particularly useful for debug builds, since it prevents some optimizations; but it can also be used with optimizations as an effective-O1flag. It can be activated by passing-C codegen-units=Ntorustc, whereNis the desired number of threads.

Cargo 的性能也得到提升：

• Builds that do not require any recompilation (“no-op builds”) for large projects are much faster: for Servo, build time went from 5 seconds to 0.5 seconds.

• Cargo now supports shared target directories that cache dependencies across multiple packages, which results in significant build-time reduction for complex projects.

同時 Rust 1.2 支持 MSVC (Microsoft Visual C) 工具鏈。在語言方面 Rust 1.2 完成了 dynamically-sized type (DST) 工作。詳細介紹請看 發行說明 。

Rust 是 Mozilla 的一個新的編程語言，由web語言的領軍人物Brendan Eich（js之父），Dave Herman以及Mozilla公司的Graydon Hoare 合力開發。