mangle

I made some progress porting mangle datalog to Rust https://github.com/google/mangle/tree/main/rust - it is in the same repo as the golang implementation. It is slow going, partly since it is not a priority, partly because I suffer from second system syndrome. Mangle Rust should deal with any size data through getting and writing facts to disk via memory mapping. The golang implementation is in-memory. This post is nice because it parses datalog and mentions the LSM tree, and much easier to follow than the data frog stuff. There are very many datalog implementations in Rust (ascent, crepe) that use proc-macros. The downside is that they won't handle getting queries at runtime. For the static analysis use case where queries/programs are fixed, the proc macro approach might be better.