Pure Rust implementation of mimalloc

[enum-class]

Hello mimalloc team and community,

First of all, thank you for creating and maintaining such a robust and well-designed allocator. It's an incredibly valuable piece of technology.
We’ve developed an LLM-powered C-to-Rust transpiler that goes far beyond mechanical translation (e.g., C2Rust).

We’ve already run our end-to-end pipeline on the full mimalloc codebase and are currently in active testing.

Early Metrics vs. C2Rust (on mimalloc core):

Tool	RP decl	RP deref	RP arithmetic	Unsafe Line
Our tool	44	41	38	51
c2rust	478	1274	477	9903

RP = Raw Pointer

Key advantages of our tool output:

• Minimal unsafe: Only in well-encapsulated, reviewed modules (e.g., intrusive lists)

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We’d love your feedback:

1. Are you open to reviewing a preview of the generated mimalloc port?
   (We can share a public repo or draft PR with CI running C test equivalence.)

2. Initial thoughts on LLM-assisted transpilation for allocator code?

3. Would a PR be welcome at this stage?
   Even as an experimental, parallel implementation (e.g., mimalloc-rs), not to replace C, but to explore the design space.

Looking forward to your thoughts, happy to hop on a call or share early artifacts.

Thanks again for the thoughtful discussion and for building such a solid foundation in mimalloc

Thanks
Saman

[daanx]

Very cool! Sorry I did not have time yet to review. I think using the dev3 branch would actually be best for a Rust translation as it has less complicated atomic invariants and should lend itself better to a "safe" version.