A categorical programming language
| Rev. | Time | Author | Message |
|---|---|---|---|
| 8b60dc0 | 2024-04-25 10:34:53 | Corbin | master Get 2to3.py to build a v3 hive. I haven't verified that ... |
| 3695ea1 | 2024-04-24 15:50:56 | Corbin | Start hacking up a proper migration for old hives. The s... |
| cca897f | 2024-03-30 02:39:05 | Corbin | Maybe solve the (comp dup nil) problem? |
| 530f14a | 2024-03-12 06:21:52 | Corbin | Include zaha. |
| 5dbcebd | 2023-12-22 15:02:53 | Corbin | jelly: Parallelize recursion and folds. This should be c... |
| 1edc88b | 2023-10-21 13:52:25 | Corbin | Try prototyping type inference for algebras. I'm really ... |
| a7d1038 | 2023-09-29 07:58:20 | Corbin | Enumerate jets for an expr? I don't like this. |
| b79c5eb | 2023-09-26 10:46:18 | Corbin | Successfully insert and fetch a nested AST. What is left... |
| ec13b16 | 2023-09-19 12:57:12 | Corbin | Flesh out a basic tree-insertion tool. This is sufficien... |
| 59169e1 | 2023-09-19 04:03:15 | Corbin | Build a new thing with libgit2 and CHICKEN. |
Fork## Cammy
"[Cammy is] really not a good language for anything." ~ [Me](https://lobste.rs/s/ftqp21/whatever_happened_elm_anyway#c_8fnjr6)
# How to add new primitives/jets
* Jet definitions in jets.json
* New primitive arrows in prims.json
* CAM operations in cammylib/cam.py
* Parser/compiler to CAM in cammylib/arrows.py
* Typechecker in cammyo.scm
* Interpreters in cammyo.scm and cammy.scm
* Algebraic laws (optimizations, jet introduction) in jelly/src/main.rs
# Jelly
The jelly optimizer is a Cammy-to-Cammy optimizer which uses e-graphs to
search for the smallest equivalent expression. The rule engine is from the
`egg` library. The rules are written in a DSL embedded in Rust, along with
comments explaining their provenance and correctness.
To update Cargo dependencies for jelly:
$ ./update-jelly.sh
# Movelist
The movelist is a relational typechecker written in CHICKEN Scheme's dialect
of miniKanren. It can typecheck a Cammy expression, or take a type
representation and synthesize Cammy expressions with the given type.
To update eggs for movelist:
$ egg2nix movelist/eggs.scm > movelist/eggs.nix
# Shell Environment
The environment for developing the Cammy toolchain is contained within
`shell.nix`.
To update eggs for the shell environment:
$ egg2nix eggs.scm > eggs.nix
# Compiling to Categories
The second argument to cammy-frame applies a list of functors. Each functor
corresponds to a path in the hive; functor `foo` corresponds to `cats/foo/`.
The list is comma-separated and applied left-to-right.