starlark-go
gopher-lua
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starlark-go | gopher-lua | |
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21 | 7 | |
2,196 | 6,005 | |
1.4% | - | |
6.9 | 4.9 | |
5 days ago | 16 days ago | |
Go | Go | |
BSD 3-clause "New" or "Revised" License | MIT License |
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starlark-go
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Python Is Easy. Go Is Simple. Simple = Easy
Starlark in go https://github.com/google/starlark-go is a great way to combine the best of both, the ease of use of Python and the simplicity of go.
I have been building a platform for deploying internal web applications using this approach https://github.com/claceio/clace. Use Starlark to configure the application, the platform itself is built in go.
- Show HN: Clace – Platform for secure internal web applications
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Examples of using task scheduler with Go?
The big unknown is your task definition: what does user-defined logic look like? If you're expecting go code, that's gonna need some cleverness because of the compiled nature of it. There's a node runtime implemented in go if you want to provide sandboxed javascript (check the source of k6.io, it's the main one I know that uses it). If you want to provide building blocks and let them compose them, starlark might be a good choice.
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Show HN: Gsubpy, an interpreter for subset of Python, written in Go
Another one of those (with broader language support) is the Starlark language, which has a Go implementation: https://github.com/google/starlark-go
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Looking for library to build composable actions from config file
Every config format gets as complex to be touring complete in the end. We had similar problems and eventually got rid of that complexity and switched to starlark (the bazel config language), was a huge benefit for the tools. https://github.com/google/starlark-go "Starlark is a dialect of Python intended for use as a configuration language. Like Python, it is an untyped dynamic language with high-level data types, first-class functions with lexical scope, and garbage collection."
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Looking for programming languages created with Go
Direct link to the Go implementation of Starlark: https://github.com/google/starlark-go
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Change go code behaviour at runtime
For a Python-like syntax, https://github.com/google/starlark-go is the language used in Babel. It's very mature, but since it is used in a massive mature project with a specific purpose, it doesn't move fast or drift from the spec of its Java-based sibling. It doesn't have exception try except blocks or some other features you might expect, but for short extension logic, it might be exactly what you want with the stability you can depend upon.
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Reserve 4 gigabytes and treat any pointer in that range as an integer value
Context: https://github.com/google/starlark-go/blob/cfacd890221418a2dc2c736f7b5e3476c38709b1/starlark/int_posix64.go
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A command-line tool to create development environments for AI/ML, based on Docker and buildkit
Thus envd is more like Dockerfile, while it uses a simplified python dialect starlark https://github.com/google/starlark-go as the build language.
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I'm building an experimental successor to Bazel™
Use Go (mostly for starlark-go)
gopher-lua
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Go performance from version 1.0 to 1.22
Would be neat to see graph of recent versions with linear scale
I checked, they use switch on opcodes in vm.go. So would expect a recent improvement, but probably only <5%, & I didn't look close enough to see if awk is one of those languages where instruction dispatch matters less (like how APL tends to avoid issues since array ops avoid having dispatch in tight loops, or how Python avoids instruction dispatch overhead when using numpy)
For VMs Go had a problem for large switch statements: it would always use binary search instead of a jump table. This caused gopher-lua & go-lua to both take the route of having an array of functions which they call on to dispatch instead
A couple years ago this was fixed: https://go-review.googlesource.com/c/go/+/357330
I measured a small perf improvement switching gopher-lua to switch: https://github.com/yuin/gopher-lua/pull/479
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Jacobin: Minimal JVM written in Go and capable of running Java 17 classes
Not the parent but there are several high quality native (meaning no CGO) Lua implementations for Go and it's a great choice if you want an embedded scripting language:
https://github.com/yuin/gopher-lua
- Are there any Golang Lua VMs that support snapshotting/serializationi?
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Using external Lua libraries in an app with embedded Lua
The "game" was just an example, what I'm exactly trying to do is creating a plugin system for my go app using gopher-lua. The thing is the app will be used by end users and I can't ask them to install libraries. ATM, I don't care about libs with external dependencies like openssl, zlib etc. supporting just the pure Lua ones is enough
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Show HN: Supershields.io – smart, Lua-powered SVG status badges
I'm generally using Visual Studio Code for all my development. Really like it.
I chose https://github.com/yuin/gopher-lua as the Lua engine because it is Golang-based, while the Nginx Lua VM is C, unless I'm mistaken. Using gopher-lua is just easier when I'm working in a Golang project. I only have to work in a single language and dev environment for all the backend work. Makes both development and testing easier.
Moonscript I might have heard of, but I have no experience with it. I did not consider it here, and I would rarely consider any niche scripting language for a solution I want others to use. It just introduces an unnecessary barrier to adoption.
- Lua: Good, Bad, and Ugly Parts
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Show HN: LadyLua, batteries-included static Lua 5.1 interpreter
GopherLua [0] is a Lua implementation written in Go, not just a wrapper around the C implementation.
The main alternative seems to be Shopify’s go-lua [1], given that Microsoft’s golua [2] is no longer being developed. The main difference between these three implementations seems to be the supported Lua version - 5.1, 5.2 and 5.3 respectively.
[0] https://github.com/yuin/gopher-lua
[1] https://github.com/Shopify/go-lua
[2] https://github.com/Azure/golua
What are some alternatives?
cue - The home of the CUE language! Validate and define text-based and dynamic configuration
go-lua - A Lua VM in Go
cue - CUE has moved to https://github.com/cue-lang/cue
golua - Go bindings for Lua C API - in progress
strictyaml - Type-safe YAML parser and validator.
otto - A JavaScript interpreter in Go (golang)
jsonnet-libs - Grafana Labs' Jsonnet libraries
goja - ECMAScript/JavaScript engine in pure Go
go-jsonnet
tengo - A fast script language for Go
starlark - Starlark Language
go-python - naive go bindings to the CPython2 C-API