minirust | A precise specification for `` Rust lite / MIR

minirust is a Rust library. minirust has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

You might wonder how this project compares to Niko's a-mir-formality. The obvious answer is that Niko is much better at picking names. ;). On a more serious note, these projects have very a different scope: MiniRust is only about the operational semantics. a-mir-formality is a lot more ambitious; as the inaugural blog post explains, it aims to also formalize traits, type checking, and borrow checking -- all of which I consider out-of-scope for MiniRust. a-mir-formality is machine-readable and written in PLT redex; MiniRust uses pseudo-code that is not currently machine-readable (but I have ideas :). The primary goals of MiniRust are to be precise and human-readable; I would argue that while PLT redex is more precise than the style I use, it does lack in readability when compared with Rust-style pseudo-code. I am willing to sacrifice some precision for the significant gain in readability, in particular since I think we can recover this precision with some amount of work. And finally, the "operational semantics" layer in a-mir-formality is "not even sketched out yet", so as of now, the projects are actually disjoint. If and when a-mir-formality obtains an operational semantics, my hope is that it will be basically the same as MiniRust, just translated into PLT redex. (Niko writes this layer of a-mir-formality is "basically equivalent to Miri"; MiniRust is basically an idealized Miri, so I think this would work well.).