The most recent model of the programming language Rust is now accessible. Rust 1.54 introduces a couple of new secure options.

One new replace is that attributes can invoke function-like macros. An instance use case of is together with documentation from different recordsdata into feedback. “For instance, in case your challenge’s README represents a great documentation remark, you should utilize include_str! to instantly incorporate the contents,” the Rust staff defined in a submit. 

Based on the staff, there have been beforehand some workarounds that may permit for this performance, however this makes it extra ergonomic. 

One other new addition is the transfer to secure for a number of intrinsics for the wasm32 platform. Not like the x86 and x86_64 intrinsics which are already stabilized, these don’t have a security requirement the place they’ll solely be referred to as if the suitable goal function is enabled. It is because WebAssembly validates code safely earlier than it’s executed so directions are assured to both be decoded appropriately or under no circumstances. 

As well as, incremental compilation has been re-enabled by default in Rust 1.54 after beforehand being turned off by default in Rust 1.52.1. In Rust 1.52, further validation was added when loading incremental compilation information, leading to numerous points being uncovered, resulting in the staff deciding to depart it disabled by default within the 1.52.1 patch. 

Since that point, the staff and contributors have labored to resolve a few of these points. Some fixes had been launched in Rust 1.53 and the bulk are actually accessible in Rust 1.54. There are nonetheless two identified points, however as a result of there’s a lack of automated crash reporting the staff is uncertain of the total extent of the affect of these remaining points.  “Nonetheless, primarily based on the suggestions we acquired from customers affected by the 1.52 launch, we imagine the remaining points to be uncommon in follow. Subsequently, incremental compilation has been re-enabled on this launch,” the staff wrote. 

Rust 1.54 is prematurely of the upcoming launch of Rust 2021, which is the third main version of the language and which is scheduled for launch in October.