WebAssembly System Interface support has been added to Ruby 3.2.0 preview, allowing the CRuby binary to run in web browsers and other WASI embedders.
WebAssembly, the highly acclaimed binary format meant to boost online application performance, will be improved in a future iteration of the Ruby language.
Ruby 3.2.0 Preview 1 was released on April 3 and includes an initial port of WASI-based (WebAssembly System Interface) WebAssembly compatibility. This allows web browsers, serverless edge environments, and other WASI embedders to run CRuby binaries. Developers can use CRuby in a WebAssembly environment thanks to WASI support. The CRuby support in the TryRuby playground is an example of a use case.
The Ruby language website has a preview of Ruby 3.2.0 available for download
The Ruby developers elaborated on the WebAssembly support, saying that WebAssembly, or Wasm, was first designed to run programs safely and quickly in browsers. However, its goal—running programs effectively and securely in a variety of environments—is desired not only by web apps, but also by ordinary applications. WASI was created with these scenarios in mind. While many apps require operating system communication, WebAssembly is launched on a virtual machine that lacks a system interface. This interface is standardized by WASI.
Due to ongoing innovation and security concerns, Ruby’s creators cautioned that WASI and WebAssembly presently lack functionality to implement Fiber, exceptions, and garbage collection. Asyncify, a binary transformation technique used to regulate execution, is employed by CRuby to fill the gap. Ruby’s developers also constructed a virtual file system layer on top of WASI, which allows Ruby apps to be packaged into a single. Wasm file and distributed more easily.
Wasmer Ruby, a WebAssembly runtime for Ruby based on Wasmer, which provides server-side capabilities for WebAssembly, is Ruby’s own WebAssembly endeavor.
Ruby 3.2.0 also improves efficiency, removes the experimental Find pattern, and adds a timeout option for Regexp matching. In circumstances when Regexp matching takes a lengthy time, the timeout function is meant as a security precaution. An attacker may exploit code that attempts to match a potentially wasteful Regexp against an untrusted input, resulting in a denial of service.
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