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Rust adopting Ferrocene Language Specification

[Posted March 27, 2025 by daroc]

One recurring criticism of Rust has been that the language has no
official specification. This is a barrier to adoption in some
safety-conscious organizations, as well as to writing alternate
language implementations. Now, the Rust project has announced that it
will be adopting the Ferrocene Language Specification (FLS) developed
by Ferrous Systems and maintaining it as part of the core project.
While this may not satisfy die-hard standardization-process
enthusiasts, it's a step toward removing another barrier to using
Rust in safety-critical systems.

    It's in that light that we're pleased to announce that we'll be
    adopting the FLS into the Rust Project as part of our ongoing
    specification efforts. This adoption is being made possible by
    the gracious donation of the FLS by Ferrous Systems. We're
    grateful to them for the work they've done in assembling the FLS,
    in making it fit for qualification purposes, in promoting its use
    and the use of Rust generally in safety-critical industries, and
    now, for working with us to take the next step and to bring the
    FLS into the Project.


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Next step : shared libraries ?

Posted Mar 27, 2025 21:16 UTC (Thu) by ballombe (subscriber, #9523) [
Link] (2 responses)

Now rust is just missing shared libraries to achieve parity with C++.
[Reply to this comment]
Next step : shared libraries ?

Posted Mar 27, 2025 22:28 UTC (Thu) by firstyear (subscriber, #89081)
[Link] (1 responses)

Shared libraries in rust will not happen. They will never happen.

Please read the following written by a rust developer who knows this
topic deeply.

"How Swift Achieved Dynamic Linking Where Rust Couldn't" - https://
faultlore.com/blah/swift-abi/

[Reply to this comment]
Next step : shared libraries ?

Posted Mar 27, 2025 22:34 UTC (Thu) by Cyberax ( supporter , #
52523) [Link]

Not quite true. There's a push to enable _some_ shared library code
(and also more compact binaries), by using dynamic dispatch and some
pre-monomorphized types.
[Reply to this comment]

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