astexplorer
Carp
astexplorer | Carp | |
---|---|---|
43 | 84 | |
5,953 | 5,393 | |
- | 0.0% | |
6.0 | 0.7 | |
9 days ago | about 1 year ago | |
JavaScript | Haskell | |
MIT License | Apache License 2.0 |
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astexplorer
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Understanding Code Structure: A Beginner's Guide to Tree-sitter
You can play with your code here, and visualise ASTs for the same.
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What is an Abstract Syntax Tree in Programming?
Website
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How to create your own Eslint rule with tests, boosting the DX, and code-review
To understand this syntax, I recommend exploring AST Explorer. You will have a better view of how the AST of JavaScript works and how to correlate it with the Eslint syntaxy:
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Programming from Top to Bottom - Parsing
You can never mistake type_declaration with an identifier, otherwise the program will not work. Aside from that constraint, you are free to name them whatever you like, there is no one standard, and each parser has it own naming conventions, unless you are planning to use something like LLVM. If you are interested, you can see examples of naming in different language parsers in the AST Explorer.
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ESLint: under the hood
The rule that I want to write will be called not-allows-underscore: the idea is to abolish the use of underscores when declaring variables or functions. It's a real dummy rule, but it should be enough to see in action the concepts that we have discussed earlier. The first thing that I would do is to go to AST Explorer, write down a code that declares variables and functions (both standard and arrows one) and take a look at what type of node is the one that encodes the identifier. Doing that, I found out that the node type of my interest is Identifier, what a surprise! 🤣. In particular, the structure of the node holds the string used as identifier in the name property.
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😱 ESlint over Conventions - You have Not unlocked the power of ESlint 😱
All the information about the API, AST node names, AST Explorer, etc. you can read in the official documentation. I’m just going to show examples of how to automate the check-up of our created conventions.
- AST Exploret
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200 Web-Based, Must-Try Web Design and Development Tools
AST Viewer
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Building a JSON Parser from scratch with JS 🤯
If you want to see how the AST of popular languages looks, I recommend the AST Explorer. It supports various languages, and you can view the complete AST and navigate through the nodes. If you want to go further, you can try to copy some logic from an existing parser and implement it in your own, such as calculating an expression according to precedence order, for example: 1 + 2 * 3 (which is 7, not 9).
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Creating my own typescript compiler
https://astexplorer.net/ is a good resource/playground for understanding ASTs and transpilers.
Carp
- Carp: A statically typed Lisp, without a GC, for real-time applications
- How to Write a (Lisp) Interpreter (In Python)
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Roc – A fast, friendly, functional language
Carp - https://github.com/carp-lang/Carp - "A statically typed lisp, without a GC, for real-time applications." where it's "Ownership tracking enables a functional programming style while still using mutation of cache-friendly data structures under the hood".
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Ask HN: Looking for statically typed, No-GC and compiled Lisp/scheme
Looking for a personal project so open-source would be great, but maturity/production readiness is not really a factor.
The only significant thing i can find so far is https://github.com/carp-lang/Carp.
Anything notable that i might have missed ?
- NASA just sent a software update to a spacecraft 12B miles away
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Lisp in Space
Not CL, but there is ulisp (http://www.ulisp.com/) for microcontrollers, supposed to be really tiny, and there is Carp (https://github.com/carp-lang/Carp) which is without a GC so seems suitable for real-time stuff.
- Carp
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Yet nobody questions ABAP, Lua, Julia, Groovy or Scala, both of them are under Lisp in TIOBE Index
by their powers combined
- Good languages for writing compilers in?
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Emerging Rust GUI libraries in a WASM world
Everybody is trying to make a more user-friendly Rust. The problem is that it is not clear yet whether that's possible, and if it is, how it may look. I know Vale and have tried it, though it's extremely early to judge anything so far. It does have a much stronger theoretical background than V, but even the theory is not completely clear at this point.
There is also Carp by the way: https://github.com/carp-lang/Carp
What are some alternatives?
deno_swc - The SWC compiler for Deno.
awesome-lisp-companies - Awesome Lisp Companies
gogocode - GoGoCode is a transformer for JavaScript/Typescript/HTML based on AST but providing a more intuitive API.
sectorlisp - Bootstrapping LISP in a Boot Sector
vscode-language-tree - VSCode tree format support
ferret - Ferret is a free software lisp implementation for real time embedded control systems.
ChakraCore - ChakraCore is an open source Javascript engine with a C API.
Fennel - Lua Lisp Language
Acorn - A small, fast, JavaScript-based JavaScript parser
femtolisp - a lightweight, robust, scheme-like lisp implementation
proposal-type-annotations - ECMAScript proposal for type syntax that is erased - Stage 1
hy - A dialect of Lisp that's embedded in Python