lj-cdefdb
LjTools
lj-cdefdb | LjTools | |
---|---|---|
1 | 11 | |
16 | 251 | |
- | - | |
10.0 | 0.0 | |
almost 8 years ago | over 1 year ago | |
Lua | C++ | |
MIT License | GNU General Public License v3.0 only |
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lj-cdefdb
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A History of Lua
Yep, pretty much.
I wound up writing a thing for this years ago that worked pretty well for the use cases I had at the time, but it was pretty complicated (implementation wise) and had some potential conflicts with other FFI-written stuff that imported "almost but not quite correct" stdlib definitions - since my thing would always import the exact definitions from the system header files.
Still, it was fun and I thought it worked reasonably well for what it was.
https://github.com/bdowning/lj-cdefdb
LjTools
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LuaJIT decompiler that supports GOTO statements?
I dug a little more and came across this tool which does seem to have the capability to view all LuaJIT Bytecode. https://github.com/rochus-keller/LjTools
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A History of Lua
> a large lua game code base, over 4000 files, 1.5 million lines of code
Interesting; how do you manage to keep consistency? Do you have special tools to e.g. detect inadvertent global variables? I once wrote a Smalltalk VM in Lua (https://github.com/rochus-keller/Smalltalk/blob/master/Inter...) which is a much smaller code base but even with this size I quickly would have lost track of e.g. scopes and names without tools I had to write myself (https://github.com/rochus-keller/LJTools).
- Minimalism in Programming Language Design
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KT/COBOL — Choosing a VM edition — I need to hear your experiences with the VM you're currently using for your project.
Most of my languages have VM backends; see e.g. https://github.com/rochus-keller/Oberon; I implemented different backends generating LuaJIT bytecode; a year ago I switched to Mono which is based on ECMA-335; here is a discussion why I switched: https://github.com/rochus-keller/Oberon/releases/tag/IDEv0.9.0; I implemented utility libraries for both LuaJIT and CIL bytecode; see https://github.com/rochus-keller/LjTools/, https://github.com/rochus-keller/Pelib/ and https://github.com/rochus-keller/MonoTools/. I evaluated many VMs and think the mentioned ones are best suited. There were a lot of challenges with both technologies, what is to be expected, and too much to describe here.
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LuaJIT for backend?
LuaJIT is well suited as a backend/runtime environment for custom languages; I did it several times (see e.g. https://github.com/rochus-keller/Smalltalk, https://github.com/rochus-keller/Som/, https://github.com/rochus-keller/Oberon/). I also implemented a bit of infrastructure to ease the reuse: https://github.com/rochus-keller/LjTools. LuaJIT has some limitations though; if you require closures you have to know that the corresponding LuaJIT FNEW bytecode is not yet supported by the JIT, i.e. switches to the interpreter; as a work-around I implemented my own closures; LuaJIT also doesn't support multi-threading, but co-routines; and there is no debugger, and the infrastructure to implement one has limitations (i.e. performance is low when running to breakpoints). For most of my projects this was no issue. Recently I switched to CIL/Mono for my Oberon+ implementation which was a good move. But still I consider LuaJIT a good choice if you can cope with the mentioned limitations. The major advantage of LuaJIT is the small footprint and impressive performance for dynamic languages.
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Writing a Register Based VM
Implementing a VM is certainly interesting, but if you just need a fast backend you could generate LuaJIT bytecode (see e.g. https://github.com/rochus-keller/ljtools/ LuaJitComposer.h/cpp).
- Finl Is Not LaTeX
- (LuaJIT) How to directly modify strings within LuaJIT Bytecode?
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Bytecode for a Register Machine
If you want to re-use LuaJIT as a backend, have e.g. a look at https://github.com/rochus-keller/ljtools
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Favorite Program for writing LUA?
Recently I mostly use https://github.com/rochus-keller/LjTools#lua-parser-and-ide-features
What are some alternatives?
lua-enumerable - A port of ruby's Enumerable module to Lua
SATySFi - A statically-typed, functional typesetting system
nvim-oxi - :link: Rust bindings to all things Neovim
ubpf - Userspace eBPF VM
port70 - A Gopher server in Lua
Oberon - Oberon parser, code model & browser, compiler and IDE with debugger
hererocks - Python script for installing Lua/LuaJIT and LuaRocks into a local directory
SoarOTX - OpenTX radio programs for model sailplanes
tex-rs - A port of TeX82 to Rust. (WIP)
langs
LuaJIT - Mirror of the LuaJIT git repository