Faster interpreters in Go: Catching up with C++

1. gomacro

   1 14 2,254 2.3 Go

   Interactive Go interpreter and debugger with REPL, Eval, generics and Lisp-like macros

   

   Compiling an expression to a tree of closures, and a list of statements to a slice of closures, is exactly how I optimized [gomacro](https://github.com/cosmos72/gomacro) my Go interpreter written in go.

   There are more tricks available there, as for example unrolling the loop that calls the list of closures, and having a `nop` closure that is executed when there's nothing to run but execution is not yet at the end of the the unrolled loop.

2. InfluxDB

   www.influxdata.com featured

   InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.

   

3. closure-based-brainfuck-vm

   2 3 13 7.7 Go

   An understandable fast brainfuck interpreter using closures rather than bytecode

   

   For optimal speed, you should move as much code as possible outside the closures.

   In particular, you should do the `switch op` at https://github.com/skx/simple-vm/blob/b3917aef0bd6c4178eed0c...

4. wirefilter

   3 2 1,027 8.2 Rust

   An execution engine for Wireshark-like filters

   

   The resulting VM implementation reminds me of this post from cloudflare where they similarly use closures to build their interpreter.

   https://blog.cloudflare.com/building-fast-interpreters-in-ru...

5. expr

   4 10 7,169 8.7 Go

   Expression language and expression evaluation for Go

   

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