moddable
V7
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moddable | V7 | |
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12 | 3 | |
1,265 | 1,401 | |
1.7% | 0.0% | |
9.8 | 1.8 | |
5 days ago | over 3 years ago | |
C | C | |
- | GNU General Public License v3.0 or later |
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
moddable
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Is there a safe and robust interpreter/scripting language? Or should I write it myself?
Your project might be a good candidate for the Moddable SDK: https://github.com/Moddable-OpenSource/moddable In particular the "mods" feature that allows sandboxed user scripts.
- Moddable Embedded JavaScript SDK 3.5.0
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The Story of Mel, a Real Programmer
> meaning that to deploy those apps requires embedding an entire web browser into every app
It doesn't require it, that's just what they choose, and it has little to do with the language. (Besides, if you actually observe them—and ignore what they tell you about liking JS—then it's clear that most of them hate their preferred language.) Languages and the bindings that a particular runtime exposes are orthogonal. You can have GTK apps written in JS, for example, or you can write a program in JS that compiles into a binary that runs on a microcontroller[2].
This is much more of a problem with the culture of Electron and the adjacent NPM ecosystem than it is anything else. Conflating the source of these problems is a great way to tank any would-be activism meant to solve them.
1. <https://en.wikipedia.org/wiki/GNOME_Shell>
2. <https://github.com/Moddable-OpenSource/moddable/blob/public/...>
- Moddable SDK: Embedded ECMAscript engine supports RasPi, littlefs file system
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Microvium Is Small
I experimented with Moddable some time ago and also contributed a module for Linux. It's written in C and I found the code quite readable, and the entire architecture good too. It's almost ES6 complete too.
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Pikascript: An ultra-lightweight Python engine that can run in 4Kb of RAM
There's JavaScript/ECMAScript via Moddable's XS engine: https://github.com/Moddable-OpenSource/moddable
"A typical microcontroller used with the Moddable SDK has about 45 KB of free memory, 1 MB of Flash ROM, and runs at 80 MHz. The Moddable SDK uses many different techniques, both at build time and at run time, to work efficiently on these devices."
- Moddable JavaScript SDK for Raspberry Pi Pico
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Why is MicroPython a thing
You think that’s bad. How about JavaScript for embedded https://github.com/Moddable-OpenSource/moddable
- Running TypeScript on ESP8266/ESP32 Devices
- Why doesn’t V8 fit on my microcontroller?
V7
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Flattening ASTs (and Other Compiler Data Structures)
I used such a succinct AST structure to implement a JavaScript parser and interpreter for a severely memory constrained environment (embedded): V7 (https://github.com/cesanta/v7)
We later switched to a ast->bytecode compilation step but for a while the implicit AST was directly traversed during interpretation.
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Microvium Is Small
Nice! A few years ago I took a stab at this problem space with https://github.com/cesanta/v7 ; with fun tricks like in-place compacting GC, stdlib JS object graph "frozen" in rom etc
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JavaScript Is Weird
https://github.com/cesanta/v7
Languages are not all equal nor do they all function in the same way, and that's not my opinion.
Javascript syntax itself is one thing, and you can certainly feel free to Javascriptify some C++ libraries and make it all look a certain way for specific tasks, while managing things behind the scenes, up to a point... but there is no getting around the fact that SOMEONE and some languages are needed to implement low level systems functionality.
the power of Cython or the Python C FFI is that it allows you to script/glue modular native code.
You then state "C++14 may have been ratified 7 years ago but it's not the target code your build chain spits out"
no, a C++ COMPILER spits out assembler code that then gets assembled and linked into an executable.
The C++ or C code corresponds directly to a given set of assembler instructions which correspond directly to CPU instructions.
You claim that Python programming of microcontrollers is mainstream, but this is not true nor possible. Python SCRIPTING of code modules (that cannot be written in Python) is certainly one way to assemble a system from pre-built legos.
If you refer to knowing what I'm talking about as gatekeeping and egoism, might I suggest that you insist less forcefully in the correctness of incorrect things you state? we could be done with this spat in short order if YOU would refrain from speaking falsehoods. lies.untrue things.
I look forward to your lisp c compiler. make sure that it's 100% lisp from the bottom up, or I'll consider you're having ceded my point. Consider that the lisp you author in has a garbage collection system that lisp cannot have written originally, nor has any semantics for the underlying memory structures of, but hey, I guess if one is committed to pretending that all languages are equal for all tasks, who am I to question ones self-identification with a given language.
What are some alternatives?
quickjs-esp32 - QuickJS port for ESP32
V8 - The official mirror of the V8 Git repository
Espruino - The Espruino JavaScript interpreter - Official Repo
Duktape - Duktape - embeddable Javascript engine with a focus on portability and compact footprint
circuitpython - CircuitPython - a Python implementation for teaching coding with microcontrollers
Lua - Lua is a powerful, efficient, lightweight, embeddable scripting language. It supports procedural programming, object-oriented programming, functional programming, data-driven programming, and data description.
phpdesktop - Develop desktop GUI applications using PHP, HTML5, JavaScript and SQLite
libffi - A portable foreign-function interface library.
PikaPython - An ultra-lightweight Python interpreter that runs with only 4KB of RAM, zero dependencies. It is ready to use out of the box without any configuration required and easy to extend with C. Similar project: MicroPython, JerryScript.
nelson - The Nelson Programming Language
microvium - A compact, embeddable scripting engine for applications and microcontrollers for executing programs written in a subset of the JavaScript language.
Wren - The Wren Programming Language. Wren is a small, fast, class-based concurrent scripting language.