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1
.envrc
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use flake . --impure use flake . --impure
export TYPST_ROOT="$(pwd)/docs"

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.gitignore vendored
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.direnv/ .direnv/
/target /target
.pre-commit-config.yaml .pre-commit-config.yaml
*.pdf
/docs/*.png
/testfiles/gen/*
!/testfiles/gen/.gitkeep

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CODE_OF_CONDUCT.md
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See https://www.rust-lang.org/policies/code-of-conduct.
The current maintainers, that is,
- [@Schrottkatze](https://forge.katzen.cafe/schrottkatze)
- [@multisamplednight](https://forge.katzen.cafe/multisamplednight)
are the entities to email, message or talk to if you feel like any interaction in the context of
iOwO is not okay. We'll try to answer as soon as we can.
Please do **not** open an issue. Notify the maintainers privately instead.

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CONTRIBUTING.md
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# Contributing to iOwO
Before we get started, thank you for thinking about doing so!
## Through an issue
- Be excellent to each other. Adhere to the [code of conduct].
- About the title: If you had 5 seconds to tell someone the essence of the issue, what would it be?
### Bugs
- Write out in detail which steps in which order are necessary to reproduce the bug.
- Include environmental information as well, in specific:
- How did you install iOwO?
- What version of iOwO are you running?
- What operating system are you running?
In the case of a Linux distro, mention the specific distro and when you last updated as well.
- If the bug causes a crash, try to get a backtrace or in worse cases, a coredump.
### Feature requests
- Be sure to include a motivation in which case your intended feature would be used
even if it seems obvious to you.
- Estimate what would be needed to implement the feature:
- Is it an addition to the language itself?
- Is it just a new command?
- Does it ground-breakingly change how iOwO works?
## Through a PR
1. Clone the repo.
2. Switch to a new appropiately named branch for what you want to do, using `git switch -c`.
3. Implement your code changes with your favorite code editor.
4. Try them with `cargo run`.
5. If there are errors or warnings, go to step 3. Commit occasionally.
6. Otherwise,
- if you have an account at https://forge.katzen.cafe,
1. fork the repo
2. set it up as a remote using `git remote add`
3. push using `git push @ -u`
- if you don't,
1. combine your patches using `git diff --patch` and throw them in a file
2. send that file to one of the maintainers per email
- alongside with a description of what it does
3. also mention in the mail that we should consider GitHub and GitLab mirrors,
referring to this line
### Tech stack
The techstack we operate on is
- [typst] for documents and concrete proposals
- [Rust] for the actual code
So if you want to contribute functionality, take a look at [The Rust Programming Language book]!
If you want to contribute thoughts and technical designs, then consider taking a ride through
[typst's excellent tutorial]!
For creative things, we suggest using whatever **you** are comfortable with.
Otherwise, we suggest these:
- [Inkscape], [GIMP] and [Blender] for promotional material like logos and posters
- [Penpot] for layouting prototypes and the like
[typst]: https://typst.app
[Rust]: https://www.rust-lang.org
[The Rust Programming Language book]: https://doc.rust-lang.org/book/
[typst's excellent tutorial]: https://typst.app/docs/tutorial
[Inkscape]: https://inkscape.org/
[GIMP]: https://www.gimp.org/
[Blender]: https://www.blender.org/
[Penpot]: https://penpot.app/
## Politics
- Current maintainers are defined as the entities listed in the [code of conduct]
### PRs
- Every PR requires an approving review from a maintainer (that is not the author) before merge
- Maintainers can merge their own PRs
- But only after approval
### Major decisions
- All current maintainers have to agree **unanimously**.
- Agreement must be based on [informed consent].
- In effect, a maintainer has to understand what they agree to.
# Interacting with PRs
Remember, be respectful.
Entities invest their free time and motivation into making these changes,
treat them appropiately.
- Since we mostly work based on forks, [git's remotes] work fairly good.
- Replace things in pointy brackets (`<>`) respectively (and remove the pointy brackets).
## Initial steps for a new contributor or new local checkout
```sh
git remote add <contributor-name> https://forge.katzen.cafe/<contributor-account>/iowo.git
git remote update <contributor-name>
```
## After setting up the remote
- You can repeat this step anytime you want to switch branches or update your local checkout.
- The PR branch is visible just below the PR title on Forgejo, after the colon (`:`).
```sh
git switch <pr-branch>
git pull
```
[code of conduct]: ./CODE_OF_CONDUCT.md
[informed consent]: https://en.wikipedia.org/wiki/Informed_consent
[git's remotes]: https://git-scm.com/docs/git-remote

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Cargo.lock generated
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Cargo.toml
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[workspace] [workspace]
members = [ members = [
"crates/app", "crates/executor",
"crates/eval", "crates/pl-cli",
"crates/ir", "crates/rpl"
"crates/lang",
"crates/svg-filters",
"crates/prowocessing",
"crates/executor-poc",
"crates/pawarser",
"crates/json-pawarser",
] ]
resolver = "2" resolver = "2"
[workspace.dependencies] [workspace.dependencies]
clap = { version = "4", features = ["derive"] } clap = { version = "4", features = [ "derive" ] }
serde = { version = "1.0", features = ["derive"] }
petgraph = "0.6.4"
# to enable all the lints below, this must be present in a workspace member's Cargo.toml: [lints.rust]
# [lints]
# workspace = true
[workspace.lints.rust]
unsafe_code = "deny" unsafe_code = "deny"
variant_size_differences = "warn" variant_size_differences = "warn"
[workspace.lints.clippy] [lints.clippy]
branches_sharing_code = "warn" branches_sharing_code = "warn"
clone_on_ref_ptr = "warn" clone_on_ref_ptr = "warn"
cognitive_complexity = "warn" cognitive_complexity = "warn"

676
LICENSE
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The main program and its libraries are licensed under the AGPL 3.0
as listed below the separator line.
Media samples in the testfiles folder are licensed under CC BY-SA 4.0.
To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/4.0/
The appropiate authors are given below, in the format of
`- file/path: author (link to author)`
- testfiles/rails.png: Schrottkatze (https://forge.katzen.cafe/schrottkatze)
===============================================================================
iOwO: media pipeline toolset
Copyright (C) 2024 Schrottkatze, MultisampledNight and iOwO contributors
GNU AFFERO GENERAL PUBLIC LICENSE
Version 3, 19 November 2007
Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
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Nothing in this License shall be construed as excluding or limiting
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otherwise be available to you under applicable patent law.
12. No Surrender of Others' Freedom.
If conditions are imposed on you (whether by court order, agreement or
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the Program, the only way you could satisfy both those terms and this
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13. Remote Network Interaction; Use with the GNU General Public License.
Notwithstanding any other provision of this License, if you modify the
Program, your modified version must prominently offer all users
interacting with it remotely through a computer network (if your version
supports such interaction) an opportunity to receive the Corresponding
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Also add information on how to contact you by electronic and paper mail.
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<https://www.gnu.org/licenses/>.

16
README.md
View file

@ -1,16 +0,0 @@
# iOwO
Tired of remembering if the argument order matters on this ImageMagick command?
Tired of having shell parsing interfere with what you actually want to do?
Fear no more, with iOwO (pronounced iowo (
we believe at least (we don't know what we're doing [please help]!)
)) you can just write a plain pipeline with [nushell]-ish syntax!
Or that's what we want it to be at least.
So, uh, grab a seat and a beverage, sit down, and maybe take a look around.
Although there's not much here — _yet_.
[please help]: ./CONTRIBUTING.md
[nushell]: https://www.nushell.sh/

23
crates/app/Cargo.toml
View file

@ -1,23 +0,0 @@
[package]
name = "app"
version = "0.1.0"
edition = "2021"
default-run = "app"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
ariadne = "0.4"
clap = { workspace = true, features = [ "derive", "env" ] }
dirs = "5"
eval = { path = "../eval" }
ir = { path = "../ir" }
prowocessing = { path = "../prowocessing"}
owo-colors = "4"
ron = "0.8"
serde = { workspace = true, features = [ "derive" ] }
serde_json = "1.0"
time = { version = "0.3", features = [ "local-offset" ] }
[lints]
workspace = true

93
crates/app/src/config.rs
View file

@ -1,93 +0,0 @@
use self::config_file::{find_config_file, Configs};
pub(crate) use cli::CliConfigs;
mod cli;
mod config_file;
/// this struct may hold all configuration
pub struct Config {
pub evaluator: eval::Available,
pub startup_msg: bool,
}
impl Config {
/// Get the configs from all possible places (args, file, env...)
pub fn read(args: &CliConfigs) -> Self {
// let config = if let Some(config) = &args.config_path {
// Ok(config.clone())
// } else {
// find_config_file()
// };
let config = args
.config_path
.clone()
.ok_or(())
.or_else(|()| find_config_file());
// try to read a maybe existing config file
let config = config.ok().and_then(|path| {
Configs::read(path).map_or_else(
|e| {
eprintln!("Config error: {e:?}");
eprintln!("Proceeding with defaults or cli args...");
None
},
Some,
)
});
if let Some(file) = config {
Self {
evaluator: args.evaluator.and(file.evaluator).unwrap_or_default(),
// this is negated because to an outward api, the negative is more intuitive,
// while in the source the other way around is more intuitive
startup_msg: !(args.no_startup_message || file.no_startup_message),
}
} else {
Self {
startup_msg: !args.no_startup_message,
evaluator: args.evaluator.unwrap_or_default(),
}
}
}
}
pub mod error {
/// Errors that can occur when reading configs
#[derive(Debug)]
pub enum Config {
/// The config dir doesn't exist
NoConfigDir,
/// We didn't find a config file in the config dir
NoConfigFileFound,
/// An io error happened while reading/opening it!
IoError(std::io::Error),
/// The given extension (via an argument) isn't known.
///
/// Occurs if the extension is neither `.json` nor `.ron` (including if there is no extension, in which case this will be `None`).
UnknownExtension(Option<String>),
/// Wrapper around an `Error` from `serde_json`
SerdeJsonError(serde_json::Error),
/// Wrapper around a `SpannedError` from `ron`
SerdeRonError(ron::error::SpannedError),
}
impl From<std::io::Error> for Config {
fn from(value: std::io::Error) -> Self {
Self::IoError(value)
}
}
impl From<serde_json::Error> for Config {
fn from(value: serde_json::Error) -> Self {
Self::SerdeJsonError(value)
}
}
impl From<ron::error::SpannedError> for Config {
fn from(value: ron::error::SpannedError) -> Self {
Self::SerdeRonError(value)
}
}
}

20
crates/app/src/config/cli.rs
View file

@ -1,20 +0,0 @@
use std::path::PathBuf;
use clap::{builder::BoolishValueParser, ArgAction, Args};
#[derive(Args)]
pub(crate) struct CliConfigs {
/// How to actually run the pipeline.
/// Overrides the config file. Defaults to the debug evaluator.
#[arg(short, long)]
pub evaluator: Option<eval::Available>,
/// Read this config file.
#[arg(short, long)]
pub config_path: Option<PathBuf>,
/// Turn off the startup message.
///
/// The startup message is not constant and depends on the time.
#[arg(long, env = "NO_STARTUP_MESSAGE", action = ArgAction::SetTrue, value_parser = BoolishValueParser::new())]
pub no_startup_message: bool,
}

61
crates/app/src/config/config_file.rs
View file

@ -1,61 +0,0 @@
use std::{
fs,
path::{Path, PathBuf},
};
use serde::{Deserialize, Serialize};
use crate::error_reporting::{report_serde_json_err, report_serde_ron_err};
use super::error::{self, Config};
#[derive(Debug, Serialize, Deserialize)]
pub struct Configs {
#[serde(default = "default_example_value")]
pub example_value: i32,
#[serde(default)]
pub no_startup_message: bool,
pub evaluator: Option<eval::Available>,
}
/// what the fuck serde why do i need this
fn default_example_value() -> i32 {
43
}
/// Find the location of a config file and check if there is, in fact, a file
pub(super) fn find_config_file() -> Result<PathBuf, Config> {
let Some(config_path) = dirs::config_dir() else {
return Err(Config::NoConfigDir);
};
let ron_path = config_path.with_file_name("config.ron");
let json_path = config_path.with_file_name("config.json");
if Path::new(&ron_path).exists() {
Ok(ron_path)
} else if Path::new(&json_path).exists() {
Ok(json_path)
} else {
Err(Config::NoConfigFileFound)
}
}
impl Configs {
pub fn read(p: PathBuf) -> Result<Self, error::Config> {
match p
.extension()
.map(|v| v.to_str().expect("config path to be UTF-8"))
{
Some("ron") => {
let f = fs::read_to_string(p)?;
ron::from_str(&f).or_else(|e| report_serde_ron_err(&f, &e))
}
Some("json") => {
let f = fs::read_to_string(p)?;
serde_json::from_str(&f).or_else(|e| report_serde_json_err(&f, &e))
}
e => Err(error::Config::UnknownExtension(e.map(str::to_owned))),
}
}
}

42
crates/app/src/error_reporting.rs
View file

@ -1,42 +0,0 @@
use std::process;
use ron::error::Position;
/// Report an `Error` from the `serde_json` crate
pub fn report_serde_json_err(src: &str, err: &serde_json::Error) -> ! {
report_serde_err(src, err.line(), err.column(), err.to_string())
}
/// Report a `SpannedError` from the `ron` crate
pub fn report_serde_ron_err(src: &str, err: &ron::error::SpannedError) -> ! {
let Position { line, col } = err.position;
report_serde_err(src, line, col, err.to_string())
}
/// Basic function for reporting serde type of errors
fn report_serde_err(src: &str, line: usize, col: usize, msg: String) -> ! {
use ariadne::{Label, Report, Source};
let offset = try_reconstruct_loc(src, line, col);
Report::build(ariadne::ReportKind::Error, "test", offset)
.with_label(Label::new(("test", offset..offset)).with_message("Something went wrong here!"))
.with_message(msg)
.with_note("We'd like to give better errors, but serde errors are horrible to work with...")
.finish()
.eprint(("test", Source::from(src)))
.expect("writing error to stderr failed");
process::exit(1)
}
/// Reconstruct a byte offset from the line + column numbers typical from serde crates
fn try_reconstruct_loc(src: &str, line_nr: usize, col_nr: usize) -> usize {
let (line_nr, col_nr) = (line_nr - 1, col_nr - 1);
src.lines()
.enumerate()
.fold(0, |acc, (i, line)| match i.cmp(&line_nr) {
std::cmp::Ordering::Less => acc + line.len() + 1,
std::cmp::Ordering::Equal => acc + col_nr,
std::cmp::Ordering::Greater => acc,
})
}

70
crates/app/src/main.rs
View file

@ -1,70 +0,0 @@
use std::{fs, path::PathBuf};
use clap::{Parser, Subcommand};
use config::{CliConfigs, Config};
use dev::DevCommands;
use welcome_msg::print_startup_msg;
mod config;
#[allow(unused)]
mod error_reporting;
mod welcome_msg;
#[derive(Parser)]
struct Args {
#[command(flatten)]
configs: CliConfigs,
#[command(subcommand)]
command: Commands,
}
#[derive(Subcommand)]
enum Commands {
Run {
/// What file contains the pipeline to evaluate.
source: PathBuf,
},
Dev {
#[command(subcommand)]
command: DevCommands,
},
}
fn main() {
// TODO: proper error handling across the whole function
// don't forget to also look inside `Config`
let args = Args::parse();
let cfg = Config::read(&args.configs);
if cfg.startup_msg {
print_startup_msg();
}
match args.command {
Commands::Run { source } => {
let source = fs::read_to_string(source).expect("can't find source file");
let ir = ir::from_ron(&source).expect("failed to parse source to graph ir");
let mut machine = cfg.evaluator.pick();
machine.feed(ir);
machine.eval_full();
}
Commands::Dev {
command: dev_command,
} => dev_command.run(),
}
}
mod dev {
use clap::Subcommand;
#[derive(Subcommand)]
pub(crate) enum DevCommands {}
impl DevCommands {
pub fn run(self) {
println!("There are currently no dev commands.");
}
}
}

16
crates/app/src/welcome_msg.rs
View file

@ -1,16 +0,0 @@
use time::{Month, OffsetDateTime};
/// Print the startup message which changes depending on system time.
pub fn print_startup_msg() {
// now or fallback to utc
let now = OffsetDateTime::now_local().unwrap_or_else(|_| OffsetDateTime::now_utc());
if now.month() == Month::June {
// pride startup message
println!("Hello, thanks for using iOwO and happy pride month!");
// TODO: proper link with explaination
println!("Why pride month is important in {}", now.year());
} else {
println!("Hello, thanks for using iOwO! :3");
}
}

45
crates/eval/src/kind/debug/instr/mod.rs
View file

@ -1,45 +0,0 @@
pub mod read {
use image::{io::Reader as ImageReader, DynamicImage};
use ir::instruction::read::{Read, SourceType};
pub fn read(Read { source }: Read) -> DynamicImage {
// TODO: actual error handling
let img = ImageReader::open(match source {
SourceType::File(path) => path,
})
.expect("something went wrong :(((");
img.decode().expect("couldn't decode image")
}
}
pub mod write {
use image::{DynamicImage, ImageFormat};
use ir::instruction::write::{TargetFormat, TargetType, Write};
pub fn write(Write { target, format }: Write, input_data: &DynamicImage) {
// TODO: actual error handling
input_data
.save_with_format(
match target {
TargetType::File(path) => path,
},
match format {
TargetFormat::Jpeg => ImageFormat::Jpeg,
TargetFormat::Png => ImageFormat::Png,
},
)
.expect("couldn't save file");
}
}
pub mod filters {
pub mod invert {
use image::DynamicImage;
pub fn invert(mut input_data: DynamicImage) -> DynamicImage {
input_data.invert();
input_data
}
}
}

105
crates/eval/src/kind/debug/mod.rs
View file

@ -1,105 +0,0 @@
use ir::{
id,
instruction::{Filter, Kind},
GraphIr, Instruction, Map,
};
use crate::value::Variant;
mod instr;
#[derive(Debug, Default)]
pub struct Evaluator {
ir: GraphIr,
/// What the output of each individual streamer, and as result its output sockets, is.
/// Grows larger as evaluation continues,
/// as there's no mechanism for purging never-to-be-used-anymore instructions yet.
evaluated: Map<id::Output, Variant>,
}
impl crate::Evaluator for Evaluator {
fn feed(&mut self, ir: GraphIr) {
self.ir = ir;
self.evaluated.clear();
}
fn eval_full(&mut self) {
// GraphIr::topological_sort returns InstructionRefs, which are mostly cool
// but we'd like to have them owned, so we can call Self::step without lifetime hassle
let queue: Vec<Instruction> = self
.ir
.topological_sort()
.into_iter()
.map(Into::into)
.collect();
for instr in queue {
self.step(instr);
}
}
}
impl Evaluator {
#[allow(clippy::needless_pass_by_value)]
fn step(&mut self, instr: Instruction) {
// what inputs does this instr need? fetch them
let inputs: Vec<_> = instr
.input_sources()
.iter()
.map(|source| {
let source_socket = source
.as_ref()
.expect("all inputs to be connected when an instruction is ran");
self.evaluated
.get(source_socket)
.expect("toposort to yield later instrs only after previous ones")
})
.collect();
// then actually do whatever the instruction should do
// NOTE: makes heavy use of index slicing,
// on the basis that ir::instruction::Kind::socket_count is correct
// TODO: make this a more flexible dispatch-ish arch
let output = match instr.kind {
Kind::Read(details) => Some(Variant::Image(instr::read::read(details))),
Kind::Write(details) => {
#[allow(irrefutable_let_patterns)] // will necessarily change
let Variant::Image(input) = inputs[0] else {
panic!("cannot only write images, but received: `{:?}`", inputs[0]);
};
instr::write::write(details, input);
None
}
Kind::Math(_) => todo!(),
Kind::Blend(_) => todo!(),
Kind::Noise(_) => todo!(),
Kind::Filter(filter_instruction) => match filter_instruction {
Filter::Invert => {
#[allow(irrefutable_let_patterns)]
let Variant::Image(input) = inputs[0] else {
panic!(
"cannot only filter invert images, but received: `{:?}`",
inputs[0]
);
};
Some(Variant::Image(instr::filters::invert::invert(
input.clone(),
)))
}
},
};
if let Some(output) = output {
// TODO: very inaccurate, actually respect individual instructions.
// should be implied by a different arch
// TODO: all of those should not be public, offer some methods to get this on
// `Instruction` instead (can infer short-term based on Kind::socket_count)
let socket = id::Output(id::Socket {
belongs_to: instr.id,
idx: id::SocketIdx(0),
});
self.evaluated.insert(socket, output);
}
}
}

1
crates/eval/src/kind/mod.rs
View file

@ -1 +0,0 @@
pub mod debug;

43
crates/eval/src/lib.rs
View file

@ -1,43 +0,0 @@
use ir::GraphIr;
mod kind;
mod value;
/// Can collapse a [`GraphIr`] in meaningful ways and do interesting work on it.
///
/// It's surprisingly difficult to find a fitting description for this.
pub trait Evaluator {
/// Take some [`GraphIr`] which will then be processed later.
/// May be called multiple times, in which the [`GraphIr`]s should add up.
// TODO: atm they definitely don't add up -- add some functionality to GraphIr to
// make it combine two graphs into one
fn feed(&mut self, ir: GraphIr);
/// Walk through the _whole_ [`GraphIr`] and run through each instruction.
fn eval_full(&mut self);
// TODO: for an LSP or the like, eval_single which starts at a given instr
}
/// The available [`Evaluator`]s.
///
/// Checklist for adding new ones:
///
/// 1. Create a new module under the [`kind`] module.
/// 2. Add a struct and implement [`Evaluator`] for it.
#[derive(Clone, Copy, Debug, Default, clap::ValueEnum, serde::Deserialize, serde::Serialize)]
pub enum Available {
/// Runs fully on the CPU. Single-threaded, debug-friendly and quick to implement.
#[default]
Debug,
}
impl Available {
/// Selects the [`Evaluator`] corresponding to this label.
#[must_use]
pub fn pick(&self) -> Box<dyn Evaluator> {
match self {
Self::Debug => Box::<kind::debug::Evaluator>::default(),
}
}
}

12
crates/eval/src/value/mod.rs
View file

@ -1,12 +0,0 @@
use image::DynamicImage;
/// Any runtime value that an instruction can input or output.
///
/// The name is taken from [Godot's `Variant` type],
/// which is very similar to this one.
///
/// [Godot's `Variant` type]: https://docs.godotengine.org/en/stable/classes/class_variant.html
#[derive(Clone, Debug)]
pub enum Variant {
Image(DynamicImage),
}

13
crates/executor-poc/Cargo.toml
View file

@ -1,13 +0,0 @@
[package]
name = "executor-poc"
version = "0.1.0"
edition = "2021"
[dependencies]
image = "0.25.1"
indexmap = "2.2.6"
nalgebra = "0.33.0"
petgraph.workspace = true
[lints]
workspace = true

128
crates/executor-poc/src/lib.rs
View file

@ -1,128 +0,0 @@
use indexmap::IndexMap;
use instructions::Instruction;
use petgraph::graph::DiGraph;
use types::Type;
trait Node {
fn inputs() -> IndexMap<String, Type>;
fn outputs() -> IndexMap<String, Type>;
}
struct NodeGraph {
graph: DiGraph<Instruction, TypedEdge>,
}
struct TypedEdge {
from: String,
to: String,
typ: Type,
}
mod instructions {
//! This is the lowest level of the IR, the one the executor will use.
use std::path::Path;
use indexmap::{indexmap, IndexMap};
pub enum Instruction {
// File handling
LoadFile,
SaveFile,
ColorMatrix,
PosMatrix,
Blend,
SplitChannels,
}
impl Instruction {
fn inputs(&self) -> IndexMap<String, Type> {
match self {
Instruction::LoadFile => indexmap! {
"path" => Type::Path
},
Instruction::SaveFile => indexmap! {
"path" => Type::Path
},
Instruction::ColorMatrix => indexmap! {
"image" => Type::ImageData,
"matrix" => Type::Mat(4,5)
},
Instruction::PosMatrix => indexmap! {
"image" => Type::ImageData,
"matrix" => Type::Mat(2, 3),
},
Instruction::Blend => todo!(),
Instruction::SplitChannels => todo!(),
}
}
fn outputs(&self) -> IndexMap<String, Type> {
match self {
Instruction::LoadFile => indexmap! {
"image" => Type::ImageData
},
Instruction::SaveFile => indexmap! {},
Instruction::ColorMatrix => indexmap! {
"resut" => Type::ImageData
},
Instruction::PosMatrix => todo!(),
Instruction::Blend => todo!(),
Instruction::SplitChannels => todo!(),
}
}
}
}
mod types {
pub enum Type {
// TODO: later do lower level type system for this stuff?
// Image(Size, PixelType),
// // image data for processing.
// // always PixelType::Rgba32F
// ImageData(Size),
// // stuff that's still to be generated, not sized and no pixeltype
// ProceduralImage,
ImageData,
Text,
Integer,
Float,
Double,
Path,
Bool,
Vec(
// length,
u8,
),
Mat(
// Rows
u8,
// Columns
u8,
),
}
// pub struct Size {
// width: u16,
// height: u16,
// }
// Pixel types. Taken from variants [here](https://docs.rs/image/latest/image/pub enum.DynamicImage.html).
// pub enum PixelType {
// Luma8,
// LumaA8,
// Rgb8,
// Rgba8,
// Luma16,
// LumaA16,
// Rgb16,
// Rgba16,
// Rgb32F,
// #[default]
// Rgba32F,
// }
}

8
crates/eval/Cargo.toml → crates/executor/Cargo.toml
View file

@ -1,5 +1,5 @@
[package] [package]
name = "eval" name = "executor"
version = "0.1.0" version = "0.1.0"
edition = "2021" edition = "2021"
@ -8,8 +8,4 @@ edition = "2021"
[dependencies] [dependencies]
clap = { workspace = true, features = [ "derive" ] } clap = { workspace = true, features = [ "derive" ] }
image = "0.24" image = "0.24"
ir = { path = "../ir" } rpl = { path = "../rpl" }
serde = { workspace = true }
[lints]
workspace = true

1
crates/executor/src/cpu/mod.rs Normal file
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@ -0,0 +1 @@
pub(crate) struct CpuExecutor;

41
crates/executor/src/debug/instructions/mod.rs Normal file
View file

@ -0,0 +1,41 @@
pub mod read {
use image::{io::Reader as ImageReader, DynamicImage};
use rpl::instructions::read::{Read, SourceType};
pub fn read(Read { source, format }: Read) -> DynamicImage {
let mut img = ImageReader::open(match source {
SourceType::File(path) => path,
})
.expect("something went wrong :(((");
img.decode().expect("couldn't decode image")
}
}
pub mod write {
use image::{io::Reader as ImageReader, DynamicImage, ImageFormat};
use rpl::instructions::write::{TargetFormat, TargetType, Write};
pub fn write(Write { target, format }: Write, input_data: DynamicImage) {
input_data.save_with_format(
match target {
TargetType::File(path) => path,
},
match format {
TargetFormat::Jpeg => ImageFormat::Jpeg,
TargetFormat::Png => ImageFormat::Png,
},
);
}
}
pub mod filters {
pub mod invert {
use image::DynamicImage;
pub fn invert(mut input_data: DynamicImage) -> DynamicImage {
input_data.invert();
input_data
}
}
}

37
crates/executor/src/debug/mod.rs Normal file
View file

@ -0,0 +1,37 @@
use rpl::instructions::{FilterInstruction, Instruction};
use crate::{value::DynamicValue, Executor};
mod instructions;
pub struct DebugExecutor;
impl Executor for DebugExecutor {
fn execute(instruction: Instruction, input: Option<DynamicValue>) -> Option<DynamicValue> {
match instruction {
Instruction::Read(read_instruction) => Some(DynamicValue::Image(
instructions::read::read(read_instruction),
)),
Instruction::Write(write_instruction) => {
instructions::write::write(
write_instruction,
match input {
Some(DynamicValue::Image(img)) => img,
_ => panic!("awawwawwa"),
},
);
None
}
Instruction::Math(_) => todo!(),
Instruction::Blend(_) => todo!(),
Instruction::Noise(_) => todo!(),
Instruction::Filter(filter_instruction) => match filter_instruction {
FilterInstruction::Invert => Some(DynamicValue::Image(
instructions::filters::invert::invert(match input {
Some(DynamicValue::Image(img)) => img,
_ => panic!("invalid value type for invert"),
}),
)),
},
}
}
}

38
crates/executor/src/lib.rs Normal file
View file

@ -0,0 +1,38 @@
use rpl::instructions::Instruction;
use value::DynamicValue;
mod debug;
mod value;
/// The available executors
/// unused in early dev.
#[derive(Debug, Clone, Copy, clap::ValueEnum)]
pub enum Executors {
/// the debug executor is single threaded and really, *really* slow. And unstable. Don't use. Unless you're a dev working on this.
Debug,
/// the CPU executor primarily uses the CPU. Most likely most feature complete, and the fallback.
Cpu,
/// the Vulkan executor (obviously) uses vulkan. there's a good chance this isn't implemented yet as you're reading this.
Vulkan,
}
trait Executor {
fn execute(instruction: Instruction, input: Option<DynamicValue>) -> Option<DynamicValue>;
}
pub fn execute_all(instructions: Vec<Instruction>) {
let mut tmp = None;
for instruction in instructions {
tmp = debug::DebugExecutor::execute(instruction, tmp);
}
}
// scratchpad lol:
// execution structure:
// 1. take in rpl
// 2. analyse/validate structure against allowed executors
// 3. assign executors to instructions
// 4. optimize
// 5. prepare memory management patterns
// 6. run

5
crates/executor/src/value/mod.rs Normal file
View file

@ -0,0 +1,5 @@
use image::DynamicImage;
pub enum DynamicValue {
Image(DynamicImage),
}

84
crates/ir/src/id.rs
View file

@ -1,84 +0,0 @@
//! Instance identification for instructions and their glue.
//!
//! Instructions as defined in [`crate::instruction::Kind`] and descendants are very useful,
//! but they cannot be directly used as vertices in the graph IR,
//! as there may easily be multiple instructions of the same kind in the same program.
//!
//! Instead, this module offers an alternative way to refer to specific instances:
//!
//! - [`Instruction`]s are effectively just a number floating in space,
//! incremented each time a new instruction is referred to.
//! - [`Socket`]s contain
//! - what [`Instruction`] they belong to
//! - which index they occupy on it
//!
//! The distinction between [`Input`] and [`Output`] is implemented
//! as them being different types.
use std::fmt;
use serde::{Deserialize, Serialize};
/// One specific instruction.
///
/// It does **not** contain what kind of instruction this is.
/// Refer to [`crate::instruction::Kind`] for this instead.
#[derive(Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
pub struct Instruction(pub(super) u64);
impl fmt::Debug for Instruction {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "InstrId {}", self.0)
}
}
/// On an **instruction**, accepts incoming data.
///
/// An **instruction** cannot run if any of these are not connected.
#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
pub struct Input(pub(super) Socket);
impl Input {
#[must_use]
pub fn socket(&self) -> &Socket {
&self.0
}
}
/// On an **instruction**, returns outgoing data to be fed to [`Input`]s.
///
/// In contrast to [`Input`]s, [`Output`]s may be used or unused.
#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
pub struct Output(pub Socket); // TODO: Restrict publicness to super
impl Output {
#[must_use]
pub fn socket(&self) -> &Socket {
&self.0
}
}
/// An unspecified socket on a specific **instruction**,
/// and where it is on that **instruction**.
#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
pub struct Socket {
pub belongs_to: Instruction,
pub idx: SocketIdx,
}
/// Where a [`Socket`] is on one **instruction**.
///
/// Note that this does **not** identify a [`Socket`] globally.
/// There may be multiple [`Socket`]s sharing the same [`SocketIdx`],
/// but on different [`Instruction`]s.
///
/// This really only serves for denoting where a socket is,
/// when it's already clear which instruction is referred to.
#[derive(Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
pub struct SocketIdx(pub u16); // TODO: Restrict publicness to super
impl fmt::Debug for SocketIdx {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
self.0.fmt(f)
}
}

81
crates/ir/src/instruction/mod.rs
View file

@ -1,81 +0,0 @@
use serde::{Deserialize, Serialize};
pub mod read;
pub mod write;
#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
pub enum Kind {
// TODO: `read::Read` and `write::Write` hold real values atm -- they should actually
// point to `Const` instructions instead (which are... yet to be done...)
Read(read::Read),
Write(write::Write),
Math(Math),
Blend(Blend),
Noise(Noise),
Filter(Filter),
}
#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
pub enum Math {
Add,
Subtract,
Multiply,
Divide,
}
#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
pub enum Blend {
Normal,
Multiply,
Additive,
Overlay,
Screen,
Subtractive,
Difference,
Darken,
Lighten,
}
#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
pub enum Noise {
Perlin,
Simplex,
Voronoi,
}
#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
pub enum Filter {
Invert,
}
// TODO: given that this basically matches on all instructions, we may need to use
// the visitor pattern in future here, or at least get them behind traits
// which should allow far more nuanced description
impl Kind {
/// Returns how many sockets this kind of instruction has.
#[must_use]
pub fn socket_count(&self) -> SocketCount {
match self {
Self::Read(_) => (0, 1),
Self::Write(_) => (1, 0),
Self::Math(_) | Self::Blend(_) => (2, 1),
Self::Noise(_) => {
todo!("how many arguments does noise take? how many outputs does it have?")
}
Self::Filter(Filter::Invert) => (1, 1),
}
.into()
}
}
/// How many sockets are on an instruction?
pub struct SocketCount {
pub inputs: u16,
pub outputs: u16,
}
impl From<(u16, u16)> for SocketCount {
fn from((inputs, outputs): (u16, u16)) -> Self {
Self { inputs, outputs }
}
}

12
crates/ir/src/instruction/read.rs
View file

@ -1,12 +0,0 @@
use serde::{Deserialize, Serialize};
use std::path::PathBuf;
#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
pub struct Read {
pub source: SourceType,
}
#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
pub enum SourceType {
File(PathBuf),
}

19
crates/ir/src/instruction/write.rs
View file

@ -1,19 +0,0 @@
use serde::{Deserialize, Serialize};
use std::path::PathBuf;
#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
pub struct Write {
pub target: TargetType,
pub format: TargetFormat,
}
#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
pub enum TargetType {
File(PathBuf),
}
#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
pub enum TargetFormat {
Jpeg,
Png,
}

353
crates/ir/src/lib.rs
View file

@ -1,353 +0,0 @@
use std::num::NonZeroUsize;
use instruction::SocketCount;
use serde::{Deserialize, Serialize};
pub mod id;
pub mod instruction;
pub mod semi_human;
pub type Map<K, V> = std::collections::BTreeMap<K, V>;
pub type Set<T> = std::collections::BTreeSet<T>;
/// Gives you a super well typed graph IR for a given human-readable repr.
///
/// Look at [`semi_human::GraphIr`] and the test files in the repo at `testfiles/`
/// to see what the RON should look like.
/// No, we don't want you to write out [`GraphIr`] in full by hand.
/// That's something for the machines to do.
///
/// # Errors
///
/// Returns an error if the parsed source is not a valid human-readable graph IR.
pub fn from_ron(source: &str) -> ron::error::SpannedResult<GraphIr> {
let human_repr: semi_human::GraphIr = ron::from_str(source)?;
Ok(human_repr.into())
}
/// The toplevel representation of a whole pipeline.
///
/// # DAGs
///
/// Pipelines may not be fully linear. They may branch out and recombine later on.
/// As such, the representation for them which is currently used is a
/// [**D**irected **A**cyclic **G**raph](https://en.wikipedia.org/wiki/Directed_acyclic_graph).
///
/// For those who are already familiar with graphs, a DAG is one, except that:
///
/// - It is **directed**: Edges have a direction they point to.
/// In this case, edges point from the outputs of streamers to inputs of consumers.
/// - It is **acyclic**: Those directed edges may not form loops.
/// In other words, if one follows edges only in their direction, it must be impossible
/// to come back to an already visited node.
///
/// Here, if an edge points from _A_ to _B_ (`A --> B`),
/// then _A_ is called a **dependency** or an **input source** of _B_,
/// and _B_ is called a **dependent** or an **output target** of _A_.
///
/// The DAG also enables another neat operation:
/// [Topological sorting](https://en.wikipedia.org/wiki/Topological_sorting).
/// This allows to put the entire graph into a linear list,
/// where it's guaranteed that once a vertex is visited,
/// all dependencies of it will have been visited already as well.
///
/// The representation used here in specific is a bit more complicated,
/// since **instructions** directly aren't just connected to one another,
/// but their **sockets** are instead.
///
/// So the vertices of the DAG are the **sockets**
/// (which are either [`id::Input`] or [`id::Output`] depending on the direction),
/// and each **socket** in turn belongs to an **instruction**.
///
/// # Usage
///
/// - If you want to build one from scratch,
/// add a few helper methods like
/// constructing an empty one,
/// adding instructions and
/// adding edges
/// - If you want to construct one from an existing repr,
/// maybe you want to use [`semi_human::GraphIr`].
///
/// # Storing additional data
///
/// Chances are the graph IR seems somewhat fit to put metadata in it.
/// However, most likely you're interacting in context of some other system,
/// and also want to manage and index that data on your own.
///
/// As such, consider using _secondary_ maps instead.
/// That is, store in a data structure _you_ own a mapping
/// from [`id`]s
/// to whatever data you need.
#[derive(Clone, Debug, Default, PartialEq, Eq, Deserialize, Serialize)]
pub struct GraphIr {
/// "Backbone" storage of all **instruction** IDs to
/// what **kind of instruction** they are.
instructions: Map<id::Instruction, instruction::Kind>,
/// How the data flows forward. **Dependencies** map to **dependents** here.
edges: Map<id::Output, Set<id::Input>>,
/// How the data flows backward. **Dependents** map to **dependencies** here.
rev_edges: Map<id::Input, id::Output>,
}
// TODO: this impl block, but actually the whole module, screams for tests
impl GraphIr {
/// Look "backwards" in the graph,
/// and find out what instructions need to be done before this one.
/// The input slots are visited in order.
///
/// - The iterator returns individually [`Some`]`(`[`None`]`)` if the corresponding slot is
/// not connected.
///
/// The same caveats as for [`GraphIr::resolve`] apply.
#[must_use]
pub fn input_sources(
&self,
subject: &id::Instruction,
) -> Option<impl Iterator<Item = Option<&id::Output>> + '_> {
let (subject, kind) = self.instructions.get_key_value(subject)?;
let SocketCount { inputs, .. } = kind.socket_count();
Some((0..inputs).map(|idx| {
let input = id::Input(socket(subject, idx));
self.rev_edges.get(&input)
}))
}
/// Look "forwards" in the graph to see what other instructions this instruction feeds into.
///
/// The output slots represent the top-level iterator,
/// and each one's connections are emitted one level below.
///
/// Just [`Iterator::flatten`] if you are not interested in the slots.
///
/// The same caveats as for [`GraphIr::resolve`] apply.
#[must_use]
pub fn output_targets(
&self,
subject: &id::Instruction,
) -> Option<impl Iterator<Item = Option<&Set<id::Input>>> + '_> {
let (subject, kind) = self.instructions.get_key_value(subject)?;
let SocketCount { outputs, .. } = kind.socket_count();
Some((0..outputs).map(|idx| {
let output = id::Output(socket(subject, idx));
self.edges.get(&output)
}))
}
/// Returns the instruction corresponding to the given ID.
/// Returns [`None`] if there is no such instruction in this graph IR.
///
/// Theoretically this could be fixed easily at the expense of some memory
/// by just incrementing and storing some global counter,
/// however, at the moment there's no compelling reason
/// to actually have multiple [`GraphIr`]s at one point in time.
/// Open an issue if that poses a problem for you.
#[must_use]
pub fn resolve<'ir>(&'ir self, subject: &id::Instruction) -> Option<InstructionRef<'ir>> {
let (id, kind) = self.instructions.get_key_value(subject)?;
let input_sources = self.input_sources(subject)?.collect();
let output_targets = self.output_targets(subject)?.collect();
Some(InstructionRef {
id,
kind,
input_sources,
output_targets,
})
}
/// Returns the instruction this input belongs to.
///
/// The same caveats as for [`GraphIr::resolve`] apply.
#[must_use]
pub fn owner_of_input<'ir>(&'ir self, input: &id::Input) -> Option<InstructionRef<'ir>> {
self.resolve(&input.socket().belongs_to)
}
/// Returns the instruction this output belongs to.
///
/// The same caveats as for [`GraphIr::resolve`] apply.
#[must_use]
pub fn owner_of_output<'ir>(&'ir self, output: &id::Output) -> Option<InstructionRef<'ir>> {
self.resolve(&output.socket().belongs_to)
}
/// Returns the order in which the instructions could be visited
/// in order to ensure that all dependencies are resolved
/// before a vertex is visited.
///
/// # Panics
///
/// Panics if there are any cycles in the IR, as it needs to be a DAG.
#[must_use]
// yes, this function could probably return an iterator and be lazy
// no, not today
pub fn topological_sort(&self) -> Vec<InstructionRef> {
// count how many incoming edges each vertex has
let mut nonzero_input_counts: Map<_, NonZeroUsize> =
self.rev_edges
.iter()
.fold(Map::new(), |mut count, (input, _)| {
let _ = *count
.entry(input.socket().belongs_to.clone())
.and_modify(|count| *count = count.saturating_add(1))
.or_insert(NonZeroUsize::MIN);
count
});
// are there any unconnected ones we could start with?
// TODO: experiment if a VecDeque with some ordering fun is digested better by the executor
let no_inputs: Vec<_> = {
let nonzero: Set<_> = nonzero_input_counts.keys().collect();
let all: Set<_> = self.instructions.keys().collect();
all.difference(&nonzero).copied().cloned().collect()
};
// then let's find the order!
let mut order = Vec::new();
let mut active_queue = no_inputs;
while let Some(current) = active_queue.pop() {
// now that this vertex is visited and resolved,
// make sure all dependents notice that
let dependents = self
.output_targets(&current)
.expect("graph to be consistent")
.flatten()
.flatten();
for dependent_input in dependents {
let dependent = &dependent_input.socket().belongs_to;
// how many inputs are connected to this dependent without us?
let count = nonzero_input_counts
.get_mut(dependent)
.expect("connected output must refer to non-zero input");
let new = NonZeroUsize::new(count.get() - 1);
if let Some(new) = new {
// aww, still some
*count = new;
continue;
}
// none, that means this one is free now! let's throw it onto the active queue then
let (now_active, _) = nonzero_input_counts
.remove_entry(dependent)
.expect("connected output must refer to non-zero input");
active_queue.push(now_active);
}
// TODO: check if this instruction is "well-fed", that is, has all the inputs it needs,
// and if not, panic
order.push(self.resolve(&current).expect("graph to be consistent"));
}
assert!(
nonzero_input_counts.is_empty(),
concat!(
"topological sort didn't cover all instructions\n",
"either there are unconnected inputs, or there is a cycle\n",
"unresolved instructions:\n",
"{:#?}"
),
nonzero_input_counts,
);
order
}
}
/// Constructs an [`id::Socket`] a bit more tersely.
fn socket(id: &id::Instruction, idx: u16) -> id::Socket {
id::Socket {
belongs_to: id.clone(),
idx: id::SocketIdx(idx),
}
}
/// A full instruction bundeled in context, with its inputs and outputs.
#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
pub struct Instruction {
pub id: id::Instruction,
pub kind: instruction::Kind,
// can't have these two public since then a user might corrupt their length
input_sources: Vec<Option<id::Output>>,
output_targets: Vec<Set<id::Input>>,
}
impl Instruction {
/// Where this instruction gets its inputs from.
///
/// [`None`] means that this input is unfilled,
/// and must be filled before the instruction can be ran.
#[must_use]
pub fn input_sources(&self) -> &[Option<id::Output>] {
&self.input_sources
}
/// To whom outputs are sent.
#[must_use]
pub fn output_targets(&self) -> &[Set<id::Input>] {
&self.output_targets
}
}
/// [`Instruction`], but every single field is borrowed instead.
/// See its docs.
///
/// Use the [`From`] impl to handily convert into an [`Instruction`].
/// The other way around is unlikely to be wanted — since you already have an [`Instruction`],
/// chances are you just want to take a reference (`&`) of it.
#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
pub struct InstructionRef<'ir> {
pub id: &'ir id::Instruction,
pub kind: &'ir instruction::Kind,
input_sources: Vec<Option<&'ir id::Output>>,
output_targets: Vec<Option<&'ir Set<id::Input>>>,
}
impl<'ir> InstructionRef<'ir> {
/// Where this instruction gets its inputs from.
///
/// [`None`] means that this input is unfilled,
/// and must be filled before the instruction can be ran.
#[must_use]
pub fn input_sources(&self) -> &[Option<&'ir id::Output>] {
&self.input_sources
}
/// To whom outputs are sent.
#[must_use]
pub fn output_targets(&self) -> &[Option<&'ir Set<id::Input>>] {
&self.output_targets
}
}
// would love to use ToOwned but Rust has no specialization yet
// and it'd hurt a blanket impl of ToOwned otherwise
impl From<InstructionRef<'_>> for Instruction {
fn from(source: InstructionRef<'_>) -> Self {
Self {
id: source.id.clone(),
kind: source.kind.clone(),
input_sources: source
.input_sources
.into_iter()
.map(Option::<&_>::cloned)
.collect(),
output_targets: source
.output_targets
.into_iter()
.map(|outputs| outputs.map(Clone::clone).unwrap_or_default())
.collect(),
}
}
}

87
crates/ir/src/semi_human.rs
View file

@ -1,87 +0,0 @@
//! The midterm solution for source representation, until we've got a nice source frontend.
//!
//! Sacrifices type expressivity for the sake of typability in [RON] files.
//!
//! **If you want to construct a graph IR programmatically,
//! use [`crate::GraphIr`] directly instead,
//! as it gives you more control to specify where your instructions came from.**
//!
//! [RON]: https://docs.rs/ron/latest/ron/
use serde::{Deserialize, Serialize};
use crate::{id, instruction, Map, Set};
/// Semi-human-{read,writ}able [`crate::GraphIr`] with far less useful types.
///
/// **Do not use this if you want to programatically construct IR.**
/// Instead, directly use [`crate::GraphIr`].
#[derive(Clone, Debug, PartialEq, Eq, Deserialize, Serialize)]
pub struct GraphIr {
/// See [`crate::GraphIr::instructions`], just that a simple number is used for the ID instead
pub(crate) instructions: Map<u64, instruction::Kind>,
/// See [`crate::GraphIr::edges`], the forward edges.
/// RON wants you to type the set as if it were a list.
pub(crate) edges: Map<Socket, Set<Socket>>,
}
#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Deserialize, Serialize)]
pub struct Socket {
/// ID of the instruction this socket is on.
pub(crate) on: u64,
pub(crate) idx: u16,
}
impl From<Socket> for id::Socket {
fn from(source: Socket) -> Self {
Self {
belongs_to: id::Instruction(source.on),
idx: id::SocketIdx(source.idx),
}
}
}
impl From<GraphIr> for crate::GraphIr {
fn from(source: GraphIr) -> Self {
let edges = source.edges.clone();
Self {
instructions: source
.instructions
.into_iter()
.map(|(id, kind)| (id::Instruction(id), kind))
.collect(),
edges: type_edges(source.edges),
rev_edges: reverse_and_type_edges(edges),
}
}
}
fn type_edges(edges: Map<Socket, Set<Socket>>) -> Map<id::Output, Set<id::Input>> {
edges
.into_iter()
.map(|(output, inputs)| {
let output = id::Output(output.into());
let inputs = inputs.into_iter().map(Into::into).map(id::Input).collect();
(output, inputs)
})
.collect()
}
fn reverse_and_type_edges(edges: Map<Socket, Set<Socket>>) -> Map<id::Input, id::Output> {
edges
.into_iter()
.fold(Map::new(), |mut rev_edges, (output, inputs)| {
let output = id::Output(output.into());
for input in inputs {
let input = id::Input(input.into());
let previous = rev_edges.insert(input, output.clone());
if let Some(previous) = previous {
// TODO: handle this with a TryFrom impl
panic!("two or more outputs referred to the same input {previous:#?}");
}
}
rev_edges
})
}

13
crates/json-pawarser/Cargo.toml
View file

@ -1,13 +0,0 @@
[package]
name = "json-pawarser"
version = "0.1.0"
edition = "2021"
[dependencies]
logos = "0.14.2"
enumset = "1.1.3"
rowan = "0.15.15"
pawarser = { path = "../pawarser" }
[lints]
workspace = true

78
crates/json-pawarser/src/grammar.rs
View file

@ -1,78 +0,0 @@
use array::array;
use enumset::{enum_set, EnumSet};
use pawarser::parser::ParserBuilder;
use crate::{
syntax_error::SyntaxError,
syntax_kind::{lex, SyntaxKind},
};
use self::object::object;
mod array;
mod object;
pub(crate) type Parser<'src> = pawarser::Parser<'src, SyntaxKind, SyntaxError>;
pub(crate) type CompletedMarker = pawarser::CompletedMarker<SyntaxKind, SyntaxError>;
const BASIC_VALUE_TOKENS: EnumSet<SyntaxKind> =
enum_set!(SyntaxKind::BOOL | SyntaxKind::NULL | SyntaxKind::NUMBER | SyntaxKind::STRING);
pub fn value(p: &mut Parser) -> bool {
if BASIC_VALUE_TOKENS.contains(p.current()) {
p.do_bump();
return true;
} else {
object(p).or_else(|| array(p)).is_some()
}
}
#[cfg(test)]
mod tests {
use super::{
test_utils::{check_parser, gen_checks},
value,
};
#[test]
fn value_lit() {
gen_checks! {value;
r#""helo world""# => r#"ROOT { STRING "\"helo world\""; }"#,
"42" => r#"ROOT { NUMBER "42"; }"#,
"null" => r#"ROOT { NULL "null"; }"#,
"true" => r#"ROOT { BOOL "true"; }"#,
"false" => r#"ROOT { BOOL "false"; }"#
};
}
}
#[cfg(test)]
mod test_utils {
use pawarser::parser::ParserBuilder;
use crate::syntax_kind::{lex, SyntaxKind};
use super::Parser;
macro_rules! gen_checks {
($fn_to_test:ident; $($in:literal => $out:literal),+) => {
$(crate::grammar::test_utils::check_parser($in, |p| { $fn_to_test(p); }, $out);)+
}
}
pub(super) use gen_checks;
pub(super) fn check_parser(input: &str, parser_fn: fn(&mut Parser), expected_output: &str) {
let toks = lex(input);
let mut p: Parser = ParserBuilder::new(toks)
.add_meaningless(SyntaxKind::WHITESPACE)
.add_meaningless(SyntaxKind::NEWLINE)
.build();
parser_fn(&mut p);
let out = p.finish();
assert_eq!(format!("{out:?}").trim_end(), expected_output);
}
}

36
crates/json-pawarser/src/grammar/array.rs
View file

@ -1,36 +0,0 @@
use crate::{syntax_error::SyntaxError, syntax_kind::SyntaxKind};
use super::{value, CompletedMarker, Parser};
pub(super) fn array(p: &mut Parser) -> Option<CompletedMarker> {
let array_start = p.start("array");
if !p.eat(SyntaxKind::BRACKET_OPEN) {
array_start.abandon(p);
return None;
}
let el = p.start("arr_el");
value(p);
el.complete(p, SyntaxKind::ELEMENT);
while p.at(SyntaxKind::COMMA) {
let potential_trailing_comma = p.start("potential_trailing_comma");
p.eat(SyntaxKind::COMMA);
let maybe_el = p.start("arr_el");
if !value(p) {
maybe_el.abandon(p);
potential_trailing_comma.complete(p, SyntaxKind::TRAILING_COMMA);
} else {
maybe_el.complete(p, SyntaxKind::ELEMENT);
potential_trailing_comma.abandon(p);
}
}
Some(if !p.eat(SyntaxKind::BRACKET_CLOSE) {
array_start.error(p, SyntaxError::UnclosedArray)
} else {
array_start.complete(p, SyntaxKind::ARRAY)
})
}

92
crates/json-pawarser/src/grammar/object.rs
View file

@ -1,92 +0,0 @@
use crate::{grammar::value, syntax_error::SyntaxError, syntax_kind::SyntaxKind};
use super::{CompletedMarker, Parser, BASIC_VALUE_TOKENS};
pub(super) fn object(p: &mut Parser) -> Option<CompletedMarker> {
let obj_start = p.start("object");
if !p.eat(SyntaxKind::BRACE_OPEN) {
obj_start.abandon(p);
return None;
}
member(p);
while p.at(SyntaxKind::COMMA) {
// not always an error, later configurable
let potential_trailing_comma = p.start("potential_trailing_comma");
p.eat(SyntaxKind::COMMA);
if member(p).is_none() {
potential_trailing_comma.complete(p, SyntaxKind::TRAILING_COMMA);
} else {
potential_trailing_comma.abandon(p);
}
}
Some(if p.eat(SyntaxKind::BRACE_CLOSE) {
obj_start.complete(p, SyntaxKind::OBJECT)
} else {
obj_start.error(p, SyntaxError::UnclosedObject)
})
}
fn member(p: &mut Parser) -> Option<CompletedMarker> {
let member_start = p.start("member");
if p.at(SyntaxKind::BRACE_CLOSE) {
member_start.abandon(p);
return None;
} else if p.at(SyntaxKind::STRING) {
let member_name_start = p.start("member_name");
p.eat(SyntaxKind::STRING);
member_name_start.complete(p, SyntaxKind::MEMBER_NAME);
} else {
return todo!("handle other tokens: {:?}", p.current());
}
if !p.eat(SyntaxKind::COLON) {
todo!("handle wrong tokens")
}
let member_value_start = p.start("member_value_start");
if value(p) {
member_value_start.complete(p, SyntaxKind::MEMBER_VALUE);
Some(member_start.complete(p, SyntaxKind::MEMBER))
} else {
member_value_start.abandon(p);
let e = member_start.error(p, SyntaxError::MemberMissingValue);
Some(
e.precede(p, "member but failed already")
.complete(p, SyntaxKind::MEMBER),
)
}
}
#[cfg(test)]
mod tests {
use crate::grammar::{
object::{member, object},
test_utils::gen_checks,
};
#[test]
fn object_basic() {
gen_checks! {object;
r#"{"a": "b"}"# => r#"ROOT { OBJECT { BRACE_OPEN "{"; MEMBER { MEMBER_NAME { STRING "\"a\""; } COLON ":"; WHITESPACE " "; MEMBER_VALUE { STRING "\"b\""; } } BRACE_CLOSE "}"; } }"#,
r#"{"a": 42}"# => r#"ROOT { OBJECT { BRACE_OPEN "{"; MEMBER { MEMBER_NAME { STRING "\"a\""; } COLON ":"; WHITESPACE " "; MEMBER_VALUE { NUMBER "42"; } } BRACE_CLOSE "}"; } }"#,
r#"{"a": "b""# => r#"ROOT { PARSE_ERR: UnclosedObject { BRACE_OPEN "{"; MEMBER { MEMBER_NAME { STRING "\"a\""; } COLON ":"; WHITESPACE " "; MEMBER_VALUE { STRING "\"b\""; } } } }"#,
r#"{"a": }"# => r#"ROOT { OBJECT { BRACE_OPEN "{"; MEMBER { PARSE_ERR: MemberMissingValue { MEMBER_NAME { STRING "\"a\""; } COLON ":"; } } WHITESPACE " "; BRACE_CLOSE "}"; } }"#,
r#"{"a":"# => r#"ROOT { PARSE_ERR: UnclosedObject { BRACE_OPEN "{"; MEMBER { PARSE_ERR: MemberMissingValue { MEMBER_NAME { STRING "\"a\""; } COLON ":"; } } } }"#,
r#"{"a":true,}"# => r#"ROOT { OBJECT { BRACE_OPEN "{"; MEMBER { MEMBER_NAME { STRING "\"a\""; } COLON ":"; MEMBER_VALUE { BOOL "true"; } } TRAILING_COMMA { COMMA ","; } BRACE_CLOSE "}"; } }"#
}
}
#[test]
fn member_basic() {
gen_checks! {member;
r#""a": "b""# => r#"ROOT { MEMBER { MEMBER_NAME { STRING "\"a\""; } COLON ":"; WHITESPACE " "; MEMBER_VALUE { STRING "\"b\""; } } }"#,
r#""a": 42"# => r#"ROOT { MEMBER { MEMBER_NAME { STRING "\"a\""; } COLON ":"; WHITESPACE " "; MEMBER_VALUE { NUMBER "42"; } } }"#,
r#""a":"# => r#"ROOT { MEMBER { PARSE_ERR: MemberMissingValue { MEMBER_NAME { STRING "\"a\""; } COLON ":"; } } }"#
}
}
}

3
crates/json-pawarser/src/lib.rs
View file

@ -1,3 +0,0 @@
mod grammar;
mod syntax_error;
mod syntax_kind;

11
crates/json-pawarser/src/syntax_error.rs
View file

@ -1,11 +0,0 @@
use crate::syntax_kind::SyntaxKind;
#[derive(Debug, Clone, PartialEq, Eq)]
pub enum SyntaxError {
UnclosedObject,
UnclosedArray,
DisallowedKeyType(SyntaxKind),
MemberMissingValue,
UnexpectedTrailingComma,
}
impl pawarser::parser::SyntaxError for SyntaxError {}

117
crates/json-pawarser/src/syntax_kind.rs
View file

@ -1,117 +0,0 @@
use logos::Logos;
pub fn lex(src: &str) -> Vec<(SyntaxKind, &str)> {
let mut lex = SyntaxKind::lexer(src);
let mut r = Vec::new();
while let Some(tok_res) = lex.next() {
r.push((tok_res.unwrap_or(SyntaxKind::LEX_ERR), lex.slice()))
}
r
}
#[derive(enumset::EnumSetType, Debug, Logos, PartialEq, Eq, Clone, Copy, Hash)]
#[repr(u16)]
#[enumset(no_super_impls)]
#[allow(non_camel_case_types)]
pub enum SyntaxKind {
OBJECT,
MEMBER,
MEMBER_NAME,
MEMBER_VALUE,
ARRAY,
ELEMENT,
// SyntaxKinds for future json5/etc support
TRAILING_COMMA,
// Tokens
// Regexes adapted from [the logos handbook](https://logos.maciej.codes/examples/json_borrowed.html)
#[token("true")]
#[token("false")]
BOOL,
#[token("{")]
BRACE_OPEN,
#[token("}")]
BRACE_CLOSE,
#[token("[")]
BRACKET_OPEN,
#[token("]")]
BRACKET_CLOSE,
#[token(":")]
COLON,
#[token(",")]
COMMA,
#[token("null")]
NULL,
#[regex(r"-?(?:0|[1-9]\d*)(?:\.\d+)?(?:[eE][+-]?\d+)?")]
NUMBER,
#[regex(r#""([^"\\]|\\["\\bnfrt]|u[a-fA-F0-9]{4})*""#)]
STRING,
// Whitespace tokens
#[regex("[ \\t\\f]+")]
WHITESPACE,
#[token("\n")]
NEWLINE,
// Error SyntaxKinds
LEX_ERR,
PARSE_ERR,
// Meta SyntaxKinds
ROOT,
EOF,
}
impl pawarser::parser::SyntaxElement for SyntaxKind {
const SYNTAX_EOF: Self = Self::EOF;
const SYNTAX_ERROR: Self = Self::PARSE_ERR;
const SYNTAX_ROOT: Self = Self::ROOT;
}
impl From<SyntaxKind> for rowan::SyntaxKind {
fn from(kind: SyntaxKind) -> Self {
Self(kind as u16)
}
}
impl From<rowan::SyntaxKind> for SyntaxKind {
fn from(raw: rowan::SyntaxKind) -> Self {
assert!(raw.0 <= SyntaxKind::EOF as u16);
#[allow(unsafe_code, reason = "The transmute is necessary here")]
unsafe {
std::mem::transmute::<u16, SyntaxKind>(raw.0)
}
}
}
#[cfg(test)]
mod tests {
use crate::syntax_kind::{lex, SyntaxKind};
#[test]
fn simple_object() {
const TEST_DATA: &str = r#"{"hello_world": "meow", "some_num":7.42}"#;
assert_eq!(
dbg!(lex(TEST_DATA)),
vec![
(SyntaxKind::BRACE_OPEN, "{"),
(SyntaxKind::STRING, "\"hello_world\""),
(SyntaxKind::COLON, ":"),
(SyntaxKind::WHITESPACE, " "),
(SyntaxKind::STRING, "\"meow\""),
(SyntaxKind::COMMA, ","),
(SyntaxKind::WHITESPACE, " "),
(SyntaxKind::STRING, "\"some_num\""),
(SyntaxKind::COLON, ":"),
(SyntaxKind::NUMBER, "7.42"),
(SyntaxKind::BRACE_CLOSE, "}")
]
);
}
}

25
crates/lang/Cargo.toml
View file

@ -1,25 +0,0 @@
[package]
name = "lang"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
logos = "0.14"
petgraph = { workspace = true}
indexmap = "2.2.6"
clap = { version = "4", features = ["derive"] }
ariadne = "0.4.0"
ego-tree = "0.6.2"
rowan = "0.15.15"
drop_bomb = "0.1.5"
enumset = "1.1.3"
indoc = "2"
dashmap = "5.5.3"
crossbeam = "0.8.4"
owo-colors = {version = "4", features = ["supports-colors"]}
strip-ansi-escapes = "0.2.0"
[lints]
workspace = true

80
crates/lang/src/ast.rs
View file

@ -1,80 +0,0 @@
use crate::lst_parser::syntax_kind::SyntaxKind::*;
use crate::SyntaxNode;
use rowan::Language;
// Heavily modified version of https://github.com/rust-analyzer/rowan/blob/e2d2e93e16c5104b136d0bc738a0d48346922200/examples/s_expressions.rs#L250-L266
macro_rules! ast_nodes {
($($ast:ident, $kind:ident);+) => {
$(
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
#[repr(transparent)]
pub struct $ast(SyntaxNode);
impl rowan::ast::AstNode for $ast {
type Language = crate::Lang;
fn can_cast(kind: <Self::Language as Language>::Kind) -> bool {
kind == $kind
}
fn cast(node: SyntaxNode) -> Option<Self> {
if node.kind() == $kind {
Some(Self(node))
} else {
None
}
}
fn syntax(&self) -> &SyntaxNode {
&self.0
}
}
)+
};
}
ast_nodes!(
Def, DEF;
DefName, DEF_NAME;
DefBody, DEF_BODY;
Mod, MODULE;
ModName, MODULE_NAME;
ModBody, MODULE_BODY;
Use, USE;
UsePat, USE_PAT;
PatItem, PAT_ITEM;
PatGlob, PAT_GLOB;
PatGroup, PAT_GROUP;
Literal, LITERAL;
IntLit, INT_NUM;
FloatLit, FLOAT_NUM;
StringLit, STRING;
Matrix, MATRIX;
MatrixRow, MAT_ROW;
Vector, VEC;
List, LIST;
CollectionItem, COLLECTION_ITEM;
ParenthesizedExpr, PARENTHESIZED_EXPR;
Expression, EXPR;
Pipeline, PIPELINE;
Instruction, INSTR;
InstructionName, INSTR_NAME;
InstructionParams, INSTR_PARAMS;
AttributeSet, ATTR_SET;
Attribute, ATTR;
AttributeName, ATTR_NAME;
AttributeValue, ATTR_VALUE;
ParseError, PARSE_ERR;
LexError, LEX_ERR;
Root, ROOT;
Eof, EOF
);

25
crates/lang/src/lib.rs
View file

@ -1,25 +0,0 @@
#![feature(type_alias_impl_trait, lint_reasons, box_into_inner)]
use crate::lst_parser::syntax_kind::SyntaxKind;
pub mod ast;
pub mod lst_parser;
pub mod world;
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub enum Lang {}
impl rowan::Language for Lang {
type Kind = SyntaxKind;
#[allow(unsafe_code)]
fn kind_from_raw(raw: rowan::SyntaxKind) -> Self::Kind {
assert!(raw.0 <= SyntaxKind::ROOT as u16);
unsafe { std::mem::transmute::<u16, SyntaxKind>(raw.0) }
}
fn kind_to_raw(kind: Self::Kind) -> rowan::SyntaxKind {
kind.into()
}
}
pub type SyntaxNode = rowan::SyntaxNode<Lang>;
pub type SyntaxToken = rowan::SyntaxNode<Lang>;
pub type SyntaxElement = rowan::NodeOrToken<SyntaxNode, SyntaxToken>;

169
crates/lang/src/lst_parser.rs
View file

@ -1,169 +0,0 @@
use drop_bomb::DropBomb;
use self::{
error::SyntaxError,
events::{Event, NodeKind},
input::Input,
syntax_kind::SyntaxKind,
};
use std::cell::Cell;
pub mod syntax_kind;
#[cfg(test)]
mod tests;
pub mod error;
pub mod events;
pub mod grammar;
pub mod input;
pub mod output;
const PARSER_STEP_LIMIT: u32 = 4096;
pub struct Parser<'src, 'toks> {
input: Input<'src, 'toks>,
pos: usize,
events: Vec<Event>,
steps: Cell<u32>,
}
impl<'src, 'toks> Parser<'src, 'toks> {
pub fn new(input: Input<'src, 'toks>) -> Self {
Self {
input,
pos: 0,
events: Vec::new(),
steps: Cell::new(0),
}
}
pub fn finish(self) -> Vec<Event> {
self.events
}
pub(crate) fn nth(&self, n: usize) -> SyntaxKind {
self.step();
self.input.kind(self.pos + n)
}
pub fn eat_succeeding_ws(&mut self) {
self.push_ev(Event::Eat {
count: self.input.meaningless_tail_len(),
});
}
pub(crate) fn current(&self) -> SyntaxKind {
self.step();
self.input.kind(self.pos)
}
pub(crate) fn start(&mut self, name: &str) -> Marker {
let pos = self.events.len();
self.push_ev(Event::tombstone());
Marker::new(pos, name)
}
pub(crate) fn at(&self, kind: SyntaxKind) -> bool {
self.nth_at(0, kind)
}
pub(crate) fn eat(&mut self, kind: SyntaxKind) -> bool {
if !self.at(kind) {
return false;
}
self.do_bump();
true
}
pub(crate) fn nth_at(&self, n: usize, kind: SyntaxKind) -> bool {
self.nth(n) == kind
}
fn do_bump(&mut self) {
self.push_ev(Event::Eat {
count: self.input.preceding_meaningless(self.pos),
});
self.pos += 1;
}
fn push_ev(&mut self, event: Event) {
self.events.push(event)
}
fn step(&self) {
let steps = self.steps.get();
assert!(steps <= PARSER_STEP_LIMIT, "the parser seems stuck...");
self.steps.set(steps + 1);
}
}
pub(crate) struct Marker {
pos: usize,
bomb: DropBomb,
}
impl Marker {
pub(crate) fn new(pos: usize, name: &str) -> Self {
Self {
pos,
bomb: DropBomb::new(format!("Marker {name} must be completed or abandoned")),
}
}
fn close_node(mut self, p: &mut Parser, kind: NodeKind) -> CompletedMarker {
self.bomb.defuse();
match &mut p.events[self.pos] {
Event::Start { kind: slot, .. } => *slot = kind.clone(),
_ => unreachable!(),
}
p.push_ev(Event::Finish);
CompletedMarker {
pos: self.pos,
kind,
}
}
pub(crate) fn complete(self, p: &mut Parser<'_, '_>, kind: SyntaxKind) -> CompletedMarker {
self.close_node(p, NodeKind::Syntax(kind))
}
pub(crate) fn error(self, p: &mut Parser, kind: SyntaxError) -> CompletedMarker {
self.close_node(p, NodeKind::Error(kind))
}
pub(crate) fn abandon(mut self, p: &mut Parser<'_, '_>) {
self.bomb.defuse();
if self.pos == p.events.len() - 1 {
match p.events.pop() {
Some(Event::Start {
kind: NodeKind::Syntax(SyntaxKind::TOMBSTONE),
forward_parent: None,
}) => (),
_ => unreachable!(),
}
}
}
}
pub(crate) struct CompletedMarker {
pos: usize,
kind: NodeKind,
}
impl CompletedMarker {
pub(crate) fn precede(self, p: &mut Parser<'_, '_>, name: &str) -> Marker {
let new_pos = p.start(name);
match &mut p.events[self.pos] {
Event::Start { forward_parent, .. } => {
*forward_parent = Some(new_pos.pos - self.pos);
}
_ => unreachable!(),
}
new_pos
}
}

15
crates/lang/src/lst_parser/error.rs
View file

@ -1,15 +0,0 @@
use crate::lst_parser::syntax_kind::SyntaxKind;
#[derive(Debug, PartialEq, Eq, Clone)]
pub enum SyntaxError {
Expected(Vec<SyntaxKind>),
PipelineNeedsSink,
// if there was two space seperated items in a list
SpaceSepInList,
SemicolonInList,
CommaInMatOrVec,
UnterminatedTopLevelItem,
UnclosedModuleBody,
UnfinishedPath,
PathSepContainsSemicolon,
}

70
crates/lang/src/lst_parser/events.rs
View file

@ -1,70 +0,0 @@
use crate::lst_parser::syntax_kind::SyntaxKind;
use super::error::SyntaxError;
#[derive(Debug)]
pub enum Event {
Start {
kind: NodeKind,
forward_parent: Option<usize>,
},
Finish,
Eat {
count: usize,
},
}
#[derive(Debug, Clone, PartialEq)]
pub enum NodeKind {
Syntax(SyntaxKind),
Error(SyntaxError),
}
impl NodeKind {
pub fn is_syntax(&self) -> bool {
matches!(self, Self::Syntax(_))
}
pub fn is_error(&self) -> bool {
matches!(self, Self::Error(_))
}
}
impl From<SyntaxKind> for NodeKind {
fn from(value: SyntaxKind) -> Self {
NodeKind::Syntax(value)
}
}
impl From<SyntaxError> for NodeKind {
fn from(value: SyntaxError) -> Self {
NodeKind::Error(value)
}
}
impl PartialEq<SyntaxKind> for NodeKind {
fn eq(&self, other: &SyntaxKind) -> bool {
match self {
NodeKind::Syntax(s) => s == other,
NodeKind::Error(_) => false,
}
}
}
impl PartialEq<SyntaxError> for NodeKind {
fn eq(&self, other: &SyntaxError) -> bool {
match self {
NodeKind::Syntax(_) => false,
NodeKind::Error(e) => e == other,
}
}
}
impl Event {
pub(crate) fn tombstone() -> Self {
Self::Start {
kind: SyntaxKind::TOMBSTONE.into(),
forward_parent: None,
}
}
}

38
crates/lang/src/lst_parser/grammar.rs
View file

@ -1,38 +0,0 @@
use std::fmt::Debug;
use crate::lst_parser::syntax_kind::SyntaxKind::*;
use self::module::{mod_body, top_level_item};
use super::{
input::Input,
output::Output,
syntax_kind::{self, lex},
Parser,
};
mod expression;
mod module;
pub fn source_file(p: &mut Parser) {
let root = p.start("root");
mod_body(p);
// expression::expression(p, false);
p.eat_succeeding_ws();
root.complete(p, ROOT);
}
fn check_parser(input: &str, parser_fn: fn(&mut Parser), output: &str) {
let toks = lex(input);
let mut parser = Parser::new(Input::new(&toks));
parser_fn(&mut parser);
let p_out = dbg!(parser.finish());
let o = Output::from_parser_output(toks, p_out);
let s = strip_ansi_escapes::strip_str(format!("{o:?}"));
assert_eq!(&s, output);
}

44
crates/lang/src/lst_parser/grammar/expression.rs
View file

@ -1,44 +0,0 @@
use crate::lst_parser::{error::SyntaxError, syntax_kind::SyntaxKind::*, CompletedMarker, Parser};
use self::{collection::collection, instruction::instr, lit::literal, pipeline::PIPES};
mod collection;
mod instruction;
mod lit;
mod pipeline;
pub fn expression(p: &mut Parser, in_pipe: bool) -> Option<CompletedMarker> {
let expr = p.start("expr");
if atom(p).or_else(|| instr(p)).is_none() {
expr.abandon(p);
return None;
}
let r = expr.complete(p, EXPR);
if PIPES.contains(p.current()) && !in_pipe {
pipeline::pipeline(p, r)
} else {
Some(r)
}
}
pub fn atom(p: &mut Parser) -> Option<CompletedMarker> {
literal(p)
.or_else(|| collection(p))
.or_else(|| parenthesized_expr(p))
}
pub fn parenthesized_expr(p: &mut Parser) -> Option<CompletedMarker> {
if p.eat(L_PAREN) {
let par_expr = p.start("parenthesized");
expression(p, false);
if !p.eat(R_PAREN) {
return Some(par_expr.error(p, SyntaxError::Expected(vec![R_PAREN])));
}
return Some(par_expr.complete(p, PARENTHESIZED_EXPR));
}
None
}

25
crates/lang/src/lst_parser/grammar/expression/collection.rs
View file

@ -1,25 +0,0 @@
use enumset::enum_set;
use crate::lst_parser::{
syntax_kind::{SyntaxKind::*, TokenSet},
CompletedMarker, Parser,
};
use self::{attr_set::attr_set, vec::vec_matrix_list};
mod attr_set;
mod vec;
const COLLECTION_START: TokenSet = enum_set!(L_BRACK | L_BRACE);
pub fn collection(p: &mut Parser) -> Option<CompletedMarker> {
if !COLLECTION_START.contains(p.current()) {
return None;
}
Some(match p.current() {
L_BRACK => vec_matrix_list(p),
L_BRACE => attr_set(p),
_ => unreachable!(),
})
}

45
crates/lang/src/lst_parser/grammar/expression/collection/attr_set.rs
View file

@ -1,45 +0,0 @@
use crate::lst_parser::{
error::SyntaxError,
grammar::expression::{atom, expression},
CompletedMarker, Marker, Parser,
SyntaxKind::*,
};
pub fn attr_set(p: &mut Parser) -> CompletedMarker {
let start = p.start("attr_set_start");
assert!(p.eat(L_BRACE));
loop {
if attr(p).is_some() {
// TODO: handle others
if p.eat(COMMA) {
continue;
} else if p.eat(R_BRACE) {
return start.complete(p, ATTR_SET);
}
// TODO: check for newline and stuff following that for recov of others
} else if p.eat(R_BRACE) {
return start.complete(p, ATTR_SET);
}
}
}
fn attr(p: &mut Parser) -> Option<CompletedMarker> {
if p.at(IDENT) {
let attr_start = p.start("attr");
let attr_name_start = p.start("attr_name");
p.do_bump();
attr_name_start.complete(p, ATTR_NAME);
// TODO: handle comma, expr/atom, other
p.eat(COLON);
// TODO: handle failed expr parser too
let attr_value = p.start("attr_value");
let _ = expression(p, false);
attr_value.complete(p, ATTR_VALUE);
Some(attr_start.complete(p, ATTR))
} else {
None
}
}

97
crates/lang/src/lst_parser/grammar/expression/collection/vec.rs
View file

@ -1,97 +0,0 @@
use crate::lst_parser::{
error::SyntaxError, grammar::expression::atom, CompletedMarker, Marker, Parser, SyntaxKind::*,
};
pub fn vec_matrix_list(p: &mut Parser) -> CompletedMarker {
let start = p.start("vec_matrix_list_start");
assert!(p.eat(L_BRACK));
let row_start = p.start("matrix_row_start");
if let Some(item) = atom(p) {
item.precede(p, "coll_item_start")
.complete(p, COLLECTION_ITEM);
if p.at(COMMA) {
row_start.abandon(p);
return finish_list(p, start);
}
finish_mat_or_vec(p, start, row_start)
} else if p.eat(R_BRACK) {
row_start.abandon(p);
start.complete(p, LIST)
} else {
row_start.abandon(p);
start.error(p, SyntaxError::Expected(vec![EXPR, R_BRACK]))
}
}
fn finish_list(p: &mut Parser, list_start: Marker) -> CompletedMarker {
loop {
if p.eat(COMMA) {
if let Some(item) = atom(p) {
item.precede(p, "coll_item_start")
.complete(p, COLLECTION_ITEM);
} else if p.eat(R_BRACK) {
return list_start.complete(p, LIST);
}
} else if p.eat(R_BRACK) {
return list_start.complete(p, LIST);
} else if let Some(item) = atom(p) {
item.precede(p, "next_item")
.complete(p, COLLECTION_ITEM)
.precede(p, "err_space_sep")
.error(p, SyntaxError::SpaceSepInList);
} else if p.at(SEMICOLON) {
let semi_err = p.start("semicolon_err");
p.eat(SEMICOLON);
semi_err.error(p, SyntaxError::SemicolonInList);
if let Some(item) = atom(p) {
item.precede(p, "coll_item_start")
.complete(p, COLLECTION_ITEM);
} else if p.eat(R_BRACK) {
return list_start.complete(p, LIST);
}
}
}
}
// TODO: handle commas, general other wrong toks
fn finish_mat_or_vec(p: &mut Parser, coll_start: Marker, mut row_start: Marker) -> CompletedMarker {
let mut is_matrix = false;
let mut row_item_count = 1;
loop {
if let Some(item) = atom(p) {
item.precede(p, "coll_item_start")
.complete(p, COLLECTION_ITEM);
row_item_count += 1;
} else if p.at(SEMICOLON) {
is_matrix = true;
row_start.complete(p, MAT_ROW);
p.eat(SEMICOLON);
row_start = p.start("matrix_row_start");
row_item_count = 0;
} else if p.at(R_BRACK) {
if is_matrix && row_item_count == 0 {
row_start.abandon(p);
p.eat(R_BRACK);
return coll_start.complete(p, MATRIX);
} else if is_matrix {
row_start.complete(p, MAT_ROW);
p.eat(R_BRACK);
return coll_start.complete(p, MATRIX);
} else {
row_start.abandon(p);
p.eat(R_BRACK);
return coll_start.complete(p, VEC);
}
} else if p.at(COMMA) {
let err_unexpected_comma = p.start("err_unexpected_comma");
p.do_bump();
err_unexpected_comma.error(p, SyntaxError::CommaInMatOrVec);
} else {
let err_unexpected = p.start("err_unexpected_tok");
p.do_bump();
err_unexpected.error(p, SyntaxError::Expected(vec![EXPR, SEMICOLON, R_BRACK]));
}
}
}

34
crates/lang/src/lst_parser/grammar/expression/instruction.rs
View file

@ -1,34 +0,0 @@
use crate::lst_parser::{syntax_kind::SyntaxKind::*, CompletedMarker, Parser};
use super::{atom, lit::literal};
pub fn instr(p: &mut Parser) -> Option<CompletedMarker> {
if !p.at(IDENT) {
return None;
}
let instr = p.start("instr");
instr_name(p);
instr_params(p);
Some(instr.complete(p, INSTR))
}
fn instr_name(p: &mut Parser) {
let instr_name = p.start("instr_name");
while p.at(IDENT) {
p.do_bump();
}
instr_name.complete(p, INSTR_NAME);
}
fn instr_params(p: &mut Parser) {
if let Some(start) = atom(p) {
while atom(p).is_some() {}
start.precede(p, "params_start").complete(p, INSTR_PARAMS);
}
}

59
crates/lang/src/lst_parser/grammar/expression/lit.rs
View file

@ -1,59 +0,0 @@
use enumset::enum_set;
use indoc::indoc;
use crate::lst_parser::{
grammar::check_parser,
syntax_kind::{SyntaxKind::*, TokenSet},
CompletedMarker, Parser,
};
const LIT_TOKENS: TokenSet = enum_set!(INT_NUM | FLOAT_NUM | STRING);
pub fn literal(p: &mut Parser) -> Option<CompletedMarker> {
if !LIT_TOKENS.contains(p.current()) {
return None;
}
let lit = p.start("lit");
p.do_bump();
Some(lit.complete(p, LITERAL))
}
#[test]
fn test_parse_lst_lit() {
check_parser(
"42",
|p| {
literal(p);
},
indoc! {r#"
LITERAL {
INT_NUM "42";
}
"#},
);
check_parser(
"3.14",
|p| {
literal(p);
},
indoc! {r#"
LITERAL {
FLOAT_NUM "3.14";
}
"#},
);
check_parser(
r#""Meow""#,
|p| {
literal(p);
},
indoc! {r#"
LITERAL {
STRING "\"Meow\"";
}
"#},
);
}

36
crates/lang/src/lst_parser/grammar/expression/pipeline.rs
View file

@ -1,36 +0,0 @@
use enumset::enum_set;
use crate::lst_parser::{
error::SyntaxError,
syntax_kind::{SyntaxKind::*, TokenSet},
CompletedMarker, Parser,
};
use super::expression;
pub fn pipeline(p: &mut Parser, start_expr: CompletedMarker) -> Option<CompletedMarker> {
if !pipe(p) {
return Some(start_expr);
}
let pipeline_marker = start_expr.precede(p, "pipeline_start");
loop {
if expression(p, true).is_none() {
return Some(pipeline_marker.error(p, SyntaxError::PipelineNeedsSink));
}
if !pipe(p) {
return Some(pipeline_marker.complete(p, PIPELINE));
}
}
}
pub const PIPES: TokenSet = enum_set!(PIPE | MAPPING_PIPE | NULL_PIPE);
fn pipe(p: &mut Parser) -> bool {
if PIPES.contains(p.current()) {
p.do_bump();
true
} else {
false
}
}

191
crates/lang/src/lst_parser/grammar/module.rs
View file

@ -1,191 +0,0 @@
use enumset::enum_set;
use crate::lst_parser::{
error::SyntaxError,
grammar::expression::expression,
syntax_kind::{SyntaxKind::*, TokenSet},
CompletedMarker, Parser,
};
const TOP_LEVEL_ITEM_START: TokenSet = enum_set!(DEF_KW | MOD_KW | USE_KW);
pub fn mod_body(p: &mut Parser) {
loop {
if top_level_item(p).is_none() {
break;
}
}
}
fn mod_decl(p: &mut Parser) -> Option<CompletedMarker> {
let mod_start = p.start("module");
if !p.eat(MOD_KW) {
mod_start.abandon(p);
return None;
}
let mod_name = p.start("module_name");
if p.eat(IDENT) {
mod_name.complete(p, MODULE_NAME);
} else {
mod_name.error(p, SyntaxError::Expected(vec![IDENT]));
}
let mod_body_marker = p.start("mod_body");
if p.eat(SEMICOLON) {
mod_body_marker.abandon(p);
Some(mod_start.complete(p, MODULE))
} else if p.eat(L_BRACE) {
mod_body(p);
if !p.eat(R_BRACE) {
mod_body_marker
.complete(p, MODULE_BODY)
.precede(p, "unclosed_mod_body_err")
.error(p, SyntaxError::UnclosedModuleBody);
} else {
mod_body_marker.complete(p, MODULE_BODY);
}
Some(mod_start.complete(p, MODULE))
} else {
Some(mod_start.error(p, SyntaxError::Expected(vec![MODULE_BODY])))
}
}
pub fn top_level_item(p: &mut Parser) -> Option<CompletedMarker> {
if !TOP_LEVEL_ITEM_START.contains(p.current()) {
return None;
}
def(p).or_else(|| mod_decl(p)).or_else(|| r#use(p))
}
fn def(p: &mut Parser) -> Option<CompletedMarker> {
let def_start = p.start("top_level_def");
if !p.eat(DEF_KW) {
def_start.abandon(p);
return None;
}
let def_name = p.start("def_name");
if p.eat(IDENT) {
def_name.complete(p, DEF_NAME);
} else {
def_name.error(p, SyntaxError::Expected(vec![IDENT]));
}
let maybe_expected_eq = p.start("maybe_expect_eq");
if !p.eat(EQ) {
maybe_expected_eq.error(p, SyntaxError::Expected(vec![EQ]));
} else {
maybe_expected_eq.abandon(p);
}
let body = p.start("def_body");
if expression(p, false).is_some() {
body.complete(p, DEF_BODY);
} else {
body.error(p, SyntaxError::Expected(vec![DEF_BODY]));
}
Some(if p.eat(SEMICOLON) {
def_start.complete(p, DEF)
} else if TOP_LEVEL_ITEM_START.contains(p.current()) || p.at(EOF) {
def_start
.complete(p, DEF)
.precede(p, "unterminated_tl_item")
.error(p, SyntaxError::UnterminatedTopLevelItem)
} else {
def_start
.complete(p, DEF)
.precede(p, "err_unexpected")
.error(p, SyntaxError::Expected(vec![SEMICOLON]))
})
}
fn r#use(p: &mut Parser) -> Option<CompletedMarker> {
let use_start = p.start("use_start");
if !p.eat(USE_KW) {
use_start.abandon(p);
return None;
}
if use_pat(p).is_none() {
p.start("expected_use_pat")
.error(p, SyntaxError::Expected(vec![USE_PAT]));
}
let use_item = use_start.complete(p, USE);
Some(if p.eat(SEMICOLON) {
use_item
} else if TOP_LEVEL_ITEM_START.contains(p.current()) || p.at(EOF) {
use_item
.precede(p, "unterminated_tl_item")
.error(p, SyntaxError::UnterminatedTopLevelItem)
} else {
use_item
.precede(p, "err_unexpected")
.error(p, SyntaxError::Expected(vec![SEMICOLON]))
})
}
fn use_pat(p: &mut Parser) -> Option<CompletedMarker> {
let use_pat_marker = p.start("use_pat");
if !p.eat(IDENT) {
return None;
}
loop {
if p.eat(PATH_SEP) {
if pat_item(p).is_none() {
break Some(use_pat_marker.error(p, SyntaxError::UnfinishedPath));
}
} else if p.at(SEMICOLON) && p.nth_at(1, COLON) {
let broken_sep = p.start("broken_path_sep");
let wrong_semi = p.start("semi_typo");
p.eat(SEMICOLON);
wrong_semi.error(p, SyntaxError::PathSepContainsSemicolon);
p.eat(COLON);
broken_sep.complete(p, PATH_SEP);
if pat_item(p).is_none() {
break Some(use_pat_marker.error(p, SyntaxError::UnfinishedPath));
}
} else if p.at(COLON) && p.nth_at(1, SEMICOLON) {
let broken_sep = p.start("broken_path_sep");
p.eat(COLON);
let wrong_semi = p.start("semi_typo");
p.eat(SEMICOLON);
wrong_semi.error(p, SyntaxError::PathSepContainsSemicolon);
broken_sep.complete(p, PATH_SEP);
if pat_item(p).is_none() {
break Some(use_pat_marker.error(p, SyntaxError::UnfinishedPath));
}
} else if p.at(SEMICOLON) && p.nth_at(1, SEMICOLON) {
let broken_sep = p.start("broken_path_sep");
p.eat(SEMICOLON);
p.eat(SEMICOLON);
broken_sep
.complete(p, PATH_SEP)
.precede(p, "semi_typo_err")
.error(p, SyntaxError::PathSepContainsSemicolon);
if pat_item(p).is_none() {
break Some(use_pat_marker.error(p, SyntaxError::UnfinishedPath));
}
} else if p.eat(SEMICOLON) {
break Some(use_pat_marker.complete(p, USE_PAT));
} else {
break Some(use_pat_marker.error(p, SyntaxError::Expected(vec![PATH_SEP, SEMICOLON])));
}
}
}
fn pat_item(p: &mut Parser) -> Option<CompletedMarker> {
let item_start = p.start("pat_item_start");
if p.eat(IDENT) {
Some(item_start.complete(p, PAT_ITEM))
} else if p.eat(STAR) {
Some(item_start.complete(p, PAT_GLOB))
} else if p.eat(L_BRACE) {
todo!("write PAT_GROUPs")
} else {
None
}
}

70
crates/lang/src/lst_parser/input.rs
View file

@ -1,70 +0,0 @@
use enumset::enum_set;
use crate::lst_parser::syntax_kind::SyntaxKind;
use super::syntax_kind::TokenSet;
pub struct Input<'src, 'toks> {
raw: &'toks Vec<(SyntaxKind, &'src str)>,
/// indices of the "meaningful" tokens (not whitespace etc)
/// includes newlines because those might indeed help with finding errors
meaningful: Vec<usize>,
/// indices of newlines for the purpose of easily querying them
/// can be helpful with missing commas etc
newlines: Vec<usize>,
}
pub const MEANINGLESS_TOKS: TokenSet = enum_set!(SyntaxKind::WHITESPACE | SyntaxKind::NEWLINE);
impl<'src, 'toks> Input<'src, 'toks> {
pub fn new(raw_toks: &'toks Vec<(SyntaxKind, &'src str)>) -> Self {
let meaningful = raw_toks
.iter()
.enumerate()
.filter_map(|(i, tok)| {
if MEANINGLESS_TOKS.contains(tok.0) {
None
} else {
Some(i)
}
})
.collect();
let newlines = raw_toks
.iter()
.enumerate()
.filter_map(|(i, tok)| match tok.0 {
SyntaxKind::NEWLINE => Some(i),
_ => None,
})
.collect();
Self {
raw: raw_toks,
meaningful,
newlines,
}
}
#[allow(clippy::unwrap_used, reason = "meaningful indices cannot be invalid")]
pub(crate) fn kind(&self, idx: usize) -> SyntaxKind {
let Some(meaningful_idx) = self.meaningful.get(idx) else {
return SyntaxKind::EOF;
};
self.raw.get(*meaningful_idx).unwrap().0
}
pub(crate) fn preceding_meaningless(&self, idx: usize) -> usize {
assert!(self.meaningful.len() > idx);
if idx == 0 {
1
} else {
self.meaningful[idx] - self.meaningful[idx - 1]
}
}
pub(crate) fn meaningless_tail_len(&self) -> usize {
self.raw.len() - (self.meaningful.last().unwrap() + 1)
}
}

208
crates/lang/src/lst_parser/output.rs
View file

@ -1,208 +0,0 @@
use clap::builder;
use owo_colors::{unset_override, OwoColorize};
use rowan::{GreenNode, GreenNodeBuilder, GreenNodeData, GreenTokenData, Language, NodeOrToken};
use std::mem;
use crate::{
lst_parser::{input::MEANINGLESS_TOKS, syntax_kind::SyntaxKind},
Lang, SyntaxNode,
};
use super::{
error::SyntaxError,
events::{Event, NodeKind},
};
pub struct Output {
pub green_node: GreenNode,
pub errors: Vec<SyntaxError>,
}
impl std::fmt::Debug for Output {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
let mut errs: Vec<&SyntaxError> = self.errors.iter().collect();
errs.reverse();
debug_print_green_node(NodeOrToken::Node(&self.green_node), f, 0, &mut errs, false)
}
}
const INDENT_STR: &str = " ";
/// colored argument currently broken
fn debug_print_green_node(
node: NodeOrToken<&GreenNodeData, &GreenTokenData>,
f: &mut dyn std::fmt::Write,
lvl: i32,
errs: &mut Vec<&SyntaxError>,
colored: bool,
) -> std::fmt::Result {
for _ in 0..lvl {
f.write_str(INDENT_STR)?;
}
let r = match node {
NodeOrToken::Node(n) => {
let kind = Lang::kind_from_raw(node.kind());
if kind != SyntaxKind::PARSE_ERR {
writeln!(
f,
"{:?} {}",
Lang::kind_from_raw(node.kind()).bright_yellow().bold(),
"{".yellow()
)?;
} else {
let err = errs
.pop()
.expect("all error syntax nodes should correspond to an error")
.bright_red();
writeln!(
f,
"{:?}{} {err:?} {}",
kind.bright_red().bold(),
":".red(),
"{".bright_red().bold()
)?;
}
for c in n.children() {
debug_print_green_node(c, f, lvl + 1, errs, colored)?;
}
for _ in 0..lvl {
f.write_str(INDENT_STR)?;
}
if kind != SyntaxKind::PARSE_ERR {
write!(f, "{}", "}\n".yellow())
} else {
write!(f, "{}", "}\n".bright_red().bold())
}
}
NodeOrToken::Token(t) => {
let tok = Lang::kind_from_raw(t.kind());
if MEANINGLESS_TOKS.contains(tok) {
writeln!(
f,
"{:?} {:?}{}",
Lang::kind_from_raw(t.kind()).white(),
t.text().white(),
";".white()
)
} else {
writeln!(
f,
"{:?} {:?}{}",
Lang::kind_from_raw(t.kind()).bright_cyan().bold(),
t.text().green(),
";".yellow()
)
}
}
};
r
}
impl Output {
pub fn debug_colored(&self) -> String {
let mut out = String::new();
let mut errs: Vec<&SyntaxError> = self.errors.iter().collect();
errs.reverse();
let _ = debug_print_green_node(
NodeOrToken::Node(&self.green_node),
&mut out,
0,
&mut errs,
true,
);
out
}
pub fn from_parser_output(
mut raw_toks: Vec<(SyntaxKind, &str)>,
mut events: Vec<Event>,
) -> Self {
let mut builder = GreenNodeBuilder::new();
let mut fw_parents = Vec::new();
let mut errors = Vec::new();
raw_toks.reverse();
for i in 0..events.len() {
match mem::replace(&mut events[i], Event::tombstone()) {
Event::Start {
kind,
forward_parent,
} => {
if kind == SyntaxKind::TOMBSTONE && forward_parent.is_none() {
continue;
}
fw_parents.push(kind);
let mut idx = i;
let mut fp = forward_parent;
while let Some(fwd) = fp {
idx += fwd as usize;
fp = match mem::replace(&mut events[idx], Event::tombstone()) {
Event::Start {
kind,
forward_parent,
} => {
fw_parents.push(kind);
forward_parent
}
_ => unreachable!(),
}
}
// remove whitespace bc it's ugly
while let Some((SyntaxKind::WHITESPACE | SyntaxKind::NEWLINE, _)) =
raw_toks.last()
{
match events.iter_mut().find(|ev| matches!(ev, Event::Eat { .. })) {
Some(Event::Eat { count }) => *count -= 1,
_ => unreachable!(),
}
let (tok, text): (SyntaxKind, &str) = raw_toks.pop().unwrap();
builder.token(tok.into(), text);
}
for kind in fw_parents.drain(..).rev() {
match kind {
NodeKind::Syntax(kind) if kind != SyntaxKind::TOMBSTONE => {
builder.start_node(kind.into())
}
NodeKind::Error(err) => {
errors.push(err);
builder.start_node(SyntaxKind::PARSE_ERR.into())
}
_ => {}
}
}
}
Event::Finish => builder.finish_node(),
Event::Eat { count } => (0..count).for_each(|_| {
let (tok, text): (SyntaxKind, &str) = raw_toks.pop().unwrap();
builder.token(tok.into(), text);
}),
}
}
Self {
green_node: builder.finish(),
errors,
}
}
pub fn syntax(&self) -> SyntaxNode {
SyntaxNode::new_root(self.green_node.clone())
}
pub fn errors(&self) -> Vec<SyntaxError> {
self.errors.clone()
}
pub fn dissolve(self) -> (GreenNode, Vec<SyntaxError>) {
let Self { green_node, errors } = self;
(green_node, errors)
}
}

140
crates/lang/src/lst_parser/syntax_kind.rs
View file

@ -1,140 +0,0 @@
use enumset::EnumSet;
use logos::Logos;
pub fn lex(src: &str) -> Vec<(SyntaxKind, &str)> {
let mut lex = SyntaxKind::lexer(src);
let mut r = Vec::new();
while let Some(tok_res) = lex.next() {
r.push((tok_res.unwrap_or(SyntaxKind::LEX_ERR), lex.slice()))
}
r
}
#[derive(enumset::EnumSetType, Logos, Debug, PartialEq, Eq, Clone, Copy, Hash, PartialOrd, Ord)]
#[repr(u16)]
#[enumset(no_super_impls)]
#[allow(non_camel_case_types)]
pub enum SyntaxKind {
#[token("def")]
DEF_KW = 0,
DEF,
DEF_NAME,
DEF_BODY,
#[token("let")]
LET_KW,
#[token("in")]
IN_KW,
LET_IN,
#[token("::")]
PATH_SEP,
#[token("mod")]
MOD_KW,
MODULE,
MODULE_NAME,
MODULE_BODY,
USE,
#[token("use")]
USE_KW,
USE_PAT,
PAT_ITEM,
PAT_GLOB,
PAT_GROUP,
#[regex("[\\d]+")]
INT_NUM,
#[regex("[+-]?([\\d]+\\.[\\d]*|[\\d]*\\.[\\d]+)")]
FLOAT_NUM,
#[regex(r#""([^"\\]|\\["\\bnfrt]|u[a-fA-F0-9]{4})*""#)]
STRING,
MATRIX,
MAT_ROW,
VEC,
LIST,
// either of a vec, a matrix or a list
COLLECTION_ITEM,
PARENTHESIZED_EXPR,
EXPR,
LITERAL,
#[token("(")]
L_PAREN,
#[token(")")]
R_PAREN,
#[token("{")]
L_BRACE,
#[token("}")]
R_BRACE,
#[token("[")]
L_BRACK,
#[token("]")]
R_BRACK,
#[token("<")]
L_ANGLE,
#[token(">")]
R_ANGLE,
#[token("+")]
PLUS,
#[token("-")]
MINUS,
#[token("*")]
STAR,
#[token("/")]
SLASH,
#[token("%")]
PERCENT,
#[token("^")]
CARET,
INSTR,
INSTR_NAME,
INSTR_PARAMS,
ATTR_SET,
ATTR,
ATTR_NAME,
ATTR_VALUE,
#[regex("[a-zA-Z_]+[a-zA-Z_\\-\\d]*")]
IDENT,
#[regex("\\$[a-zA-Z0-9_\\-]+")]
VAR,
#[regex("\\@[a-zA-Z0-9_\\-]+")]
INPUT_VAR,
#[token("$")]
DOLLAR,
#[token("@")]
AT,
#[token(",")]
COMMA,
#[token("|")]
PIPE,
#[token("@|")]
MAPPING_PIPE,
#[token("!|")]
NULL_PIPE,
PIPELINE,
#[token("=")]
EQ,
#[token(":")]
COLON,
#[token(";")]
SEMICOLON,
#[token(".")]
DOT,
#[token("!")]
BANG,
#[regex("[ \\t\\f]+")]
WHITESPACE,
#[token("\n")]
NEWLINE,
PARSE_ERR,
LEX_ERR,
ROOT,
EOF,
TOMBSTONE,
}
pub type TokenSet = EnumSet<SyntaxKind>;
impl From<SyntaxKind> for rowan::SyntaxKind {
fn from(kind: SyntaxKind) -> Self {
Self(kind as u16)
}
}

1
crates/lang/src/lst_parser/tests.rs
View file

@ -1 +0,0 @@

29
crates/lang/src/main.rs
View file

@ -1,29 +0,0 @@
use clap::Parser;
use std::{fs, path::PathBuf};
use lang::lst_parser::{self, grammar, input, output::Output, syntax_kind};
#[derive(Parser)]
struct Args {
file: PathBuf,
}
#[allow(clippy::unwrap_used)]
fn main() {
let args = Args::parse();
let n = args.file.clone();
let f = fs::read_to_string(n.clone()).expect("failed to read file");
let toks = dbg!(syntax_kind::lex(&f));
let input = input::Input::new(&toks);
let mut parser = lst_parser::Parser::new(input);
grammar::source_file(&mut parser);
let p_out = dbg!(parser.finish());
let o = Output::from_parser_output(toks, p_out);
println!("{}", o.debug_colored());
// World::new(n);
}

27
crates/lang/src/world.rs
View file

@ -1,27 +0,0 @@
use std::path::Path;
use self::files::{Files, OpenFileError};
mod error;
mod files;
struct World;
impl World {
pub fn new(entry_point: &Path) -> Result<Self, WorldCreationError> {
let mut files = Files::default();
let (entry_point_id, errors) = files.add_file(entry_point)?;
todo!()
}
}
enum WorldCreationError {
FailedToOpenEntryPoint(OpenFileError),
}
impl From<OpenFileError> for WorldCreationError {
fn from(value: OpenFileError) -> Self {
Self::FailedToOpenEntryPoint(value)
}
}

10
crates/lang/src/world/error.rs
View file

@ -1,10 +0,0 @@
use std::path::PathBuf;
use crate::{ast::ParseError, lst_parser::error::SyntaxError};
use super::files::{FileId, Loc, OpenFileError};
pub enum Error {
Syntax(Loc<ParseError>, SyntaxError),
OpenFileError(OpenFileError),
}

57
crates/lang/src/world/files.rs
View file

@ -1,57 +0,0 @@
use std::{
collections::HashMap,
io,
path::{Path, PathBuf},
};
mod loc;
pub use loc::Loc;
use rowan::ast::AstNode;
use crate::{
ast::ParseError,
lst_parser::{self, error::SyntaxError, input, output::Output},
world::{error::Error, files::source_file::SourceFile},
};
#[derive(Default)]
pub struct Files {
inner: Vec<source_file::SourceFile>,
path_to_id_map: HashMap<PathBuf, FileId>,
}
impl Files {
pub fn add_file(&mut self, path: &Path) -> Result<(FileId, Vec<Error>), OpenFileError> {
if !path.exists() {
return Err(OpenFileError::NotFound(path.to_owned()));
}
let file_id = FileId(self.inner.len());
let (source_file, errs) = match SourceFile::open(path) {
Ok((source_file, errs)) => {
let errs = errs
.into_iter()
.map(|(ptr, err)| Error::Syntax(Loc::from_ptr(ptr, file_id), err))
.collect::<Vec<_>>();
(source_file, errs)
}
Err(e) => return Err(OpenFileError::IoError(path.to_path_buf(), e)),
};
self.inner.push(source_file);
self.path_to_id_map.insert(path.to_path_buf(), file_id);
Ok((file_id, errs))
}
}
pub enum OpenFileError {
NotFound(PathBuf),
IoError(PathBuf, std::io::Error),
}
#[derive(Copy, Clone, Debug)]
pub struct FileId(usize);
mod source_file;

29
crates/lang/src/world/files/loc.rs
View file

@ -1,29 +0,0 @@
use rowan::ast::{AstNode, AstPtr};
use crate::Lang;
use super::FileId;
#[derive(Clone)]
pub struct Loc<N: AstNode<Language = Lang>> {
file: FileId,
syntax: AstPtr<N>,
}
impl<N: AstNode<Language = Lang>> Loc<N> {
pub fn new(node: N, file: FileId) -> Self {
Self::from_ptr(AstPtr::new(&node), file)
}
pub fn from_ptr(ptr: AstPtr<N>, file: FileId) -> Self {
Self { file, syntax: ptr }
}
pub fn file(&self) -> FileId {
self.file
}
pub fn syntax(&self) -> AstPtr<N> {
self.syntax.clone()
}
}

113
crates/lang/src/world/files/source_file.rs
View file

@ -1,113 +0,0 @@
use crate::lst_parser::{self, grammar, input, syntax_kind};
use crate::SyntaxNode;
use crate::lst_parser::output::Output;
use crate::lst_parser::error::SyntaxError;
use crate::ast::ParseError;
use rowan::ast::{AstNode, AstPtr};
use std::path::Path;
use std::{fs, io};
use rowan::GreenNode;
use std::path::PathBuf;
pub(crate) struct SourceFile {
pub(crate) path: PathBuf,
pub(crate) lst: rowan::GreenNode,
}
impl SourceFile {
pub(crate) fn open(p: &Path) -> io::Result<(Self, Vec<(AstPtr<ParseError>, SyntaxError)>)> {
assert!(p.exists());
let f = fs::read_to_string(p)?;
let (lst, errs) = Self::parse(f);
Ok((
Self {
path: p.to_path_buf(),
lst,
},
errs,
))
}
pub(crate) fn parse(f: String) -> (GreenNode, Vec<(AstPtr<ParseError>, SyntaxError)>) {
let toks = syntax_kind::lex(&f);
let input = input::Input::new(&toks);
let mut parser = lst_parser::Parser::new(input);
grammar::source_file(&mut parser);
let p_out = parser.finish();
let (lst, errs) = Output::from_parser_output(toks, p_out).dissolve();
(lst.clone(), Self::find_errs(lst, errs))
}
pub(crate) fn find_errs(
lst: GreenNode,
mut errs: Vec<SyntaxError>,
) -> Vec<(AstPtr<ParseError>, SyntaxError)> {
let mut out = Vec::new();
errs.reverse();
let lst = SyntaxNode::new_root(lst);
Self::find_errs_recursive(&mut out, lst, &mut errs);
out
}
pub(crate) fn find_errs_recursive(
mut out: &mut Vec<(AstPtr<ParseError>, SyntaxError)>,
lst: SyntaxNode,
mut errs: &mut Vec<SyntaxError>,
) {
lst.children()
.filter_map(|c| ParseError::cast(c))
.for_each(|e| out.push((AstPtr::new(&e), errs.pop().unwrap())));
lst.children()
.for_each(|c| Self::find_errs_recursive(out, c, errs));
}
}
#[cfg(test)]
mod tests {
use crate::world::files::source_file::SourceFile;
fn check_find_errs(input: &str, expected: &[&str]) {
let (_, errs) = SourceFile::parse(input.to_string());
let errs = errs
.into_iter()
.map(|(loc, err)| format!("{:?}@{:?}", err, loc.syntax_node_ptr().text_range()))
.collect::<Vec<String>>();
assert_eq!(
errs,
expected
.into_iter()
.map(|s| s.to_string())
.collect::<Vec<_>>()
)
}
#[test]
fn test_find_errs() {
check_find_errs(
"def meow = ;\n mod ;",
&["Expected([DEF_BODY])@11..11", "Expected([IDENT])@18..18"],
);
check_find_errs(
"def awawa = a |",
&["UnterminatedTopLevelItem@0..15", "PipelineNeedsSink@12..15"],
)
}
}

12
crates/pawarser/Cargo.toml
View file

@ -1,12 +0,0 @@
[package]
name = "pawarser"
version = "0.1.0"
edition = "2021"
[dependencies]
rowan = "0.15.15"
drop_bomb = "0.1.5"
enumset = "1.1.3"
[lints]
workspace = true

8
crates/pawarser/src/lib.rs
View file

@ -1,8 +0,0 @@
#![feature(iter_collect_into)]
pub mod parser;
pub use parser::{
error::SyntaxError,
marker::{CompletedMarker, Marker},
Parser, SyntaxElement,
};

253
crates/pawarser/src/parser.rs
View file

@ -1,253 +0,0 @@
use std::{cell::Cell, fmt, marker::PhantomData, mem};
use enumset::{EnumSet, EnumSetType};
use rowan::{GreenNode, GreenNodeBuilder};
use crate::parser::event::NodeKind;
use self::{event::Event, input::Input, marker::Marker};
pub use {error::SyntaxError, output::ParserOutput};
pub mod error;
mod event;
mod input;
pub mod marker;
pub mod output;
/// this is used to define some required SyntaxKinds like an EOF token or an error token
pub trait SyntaxElement
where
Self: EnumSetType
+ Into<rowan::SyntaxKind>
+ From<rowan::SyntaxKind>
+ fmt::Debug
+ Clone
+ PartialEq
+ Eq,
{
/// EOF value. This will be used by the rest of the parser library to represent an EOF.
const SYNTAX_EOF: Self;
/// Error value. This will be used as a placeholder for associated respective errors.
const SYNTAX_ERROR: Self;
const SYNTAX_ROOT: Self;
}
pub struct Parser<'src, SyntaxKind: SyntaxElement, SyntaxErr: SyntaxError> {
input: Input<'src, SyntaxKind>,
pos: usize,
events: Vec<Event<SyntaxKind, SyntaxErr>>,
step_limit: u32,
steps: Cell<u32>,
}
impl<'src, 'toks, SyntaxKind: SyntaxElement, SyntaxErr: SyntaxError>
Parser<'src, SyntaxKind, SyntaxErr>
{
/// eat all meaningless tokens at the end of the file.
pub fn eat_succeeding_meaningless(&mut self) {
self.push_ev(Event::Eat {
count: self.input.meaningless_tail_len(),
});
}
/// Get token from current position of the parser.
pub fn current(&self) -> SyntaxKind {
self.step();
self.input.kind(self.pos)
}
pub fn start(&mut self, name: &str) -> Marker {
let pos = self.events.len();
self.push_ev(Event::tombstone());
Marker::new(pos, name)
}
/// Eat next token if it's of kind `kind` and return `true`.
/// Otherwise, `false`.
pub fn eat(&mut self, kind: SyntaxKind) -> bool {
if !self.at(kind) {
return false;
}
self.do_bump();
true
}
pub fn do_bump(&mut self) {
self.push_ev(Event::Eat {
count: self.input.preceding_meaningless(self.pos),
});
self.pos += 1;
}
/// Check if the token at the current parser position is of `kind`
pub fn at(&self, kind: SyntaxKind) -> bool {
self.nth_at(0, kind)
}
/// Check if the token that is `n` ahead is of `kind`
pub fn nth_at(&self, n: usize, kind: SyntaxKind) -> bool {
self.nth(n) == kind
}
pub fn nth(&self, n: usize) -> SyntaxKind {
self.step();
self.input.kind(self.pos + n)
}
fn push_ev(&mut self, event: Event<SyntaxKind, SyntaxErr>) {
self.events.push(event);
}
fn step(&self) {
let steps = self.steps.get();
assert!(steps <= self.step_limit, "the parser seems stuck.");
self.steps.set(steps + 1);
}
pub fn finish(self) -> ParserOutput<SyntaxKind, SyntaxErr> {
let Self {
input,
pos,
mut events,
step_limit,
steps,
} = self;
let (mut raw_toks, meaningless_tokens) = input.dissolve();
let mut builder = GreenNodeBuilder::new();
// TODO: document what the hell a forward parent is
let mut fw_parents = Vec::new();
let mut errors: Vec<SyntaxErr> = Vec::new();
raw_toks.reverse();
// always have an implicit root node to avoid [`GreenNodeBuilder::finish()`] panicking due to multiple root elements.
builder.start_node(SyntaxKind::SYNTAX_ROOT.into());
for i in 0..events.len() {
match mem::replace(&mut events[i], Event::tombstone()) {
Event::Start {
kind,
forward_parent,
} => {
if kind == NodeKind::Tombstone && forward_parent.is_none() {
continue;
}
// resolving forward parents
// temporarily jump around with the parser index and replace them with tombstones
fw_parents.push(kind);
let mut idx = i;
let mut fp = forward_parent;
while let Some(fwd) = fp {
idx += fwd as usize;
fp = match mem::replace(&mut events[idx], Event::tombstone()) {
Event::Start {
kind,
forward_parent,
} => {
fw_parents.push(kind);
forward_parent
}
_ => unreachable!(),
}
}
// clear semantically meaningless tokens before the new tree node for aesthetic reasons
while raw_toks
.last()
.is_some_and(|v| meaningless_tokens.contains(v.0))
{
// update first next Eat event
match events.iter_mut().find(|ev| matches!(ev, Event::Eat { .. })) {
Some(Event::Eat { count }) => *count -= 1,
_ => unreachable!(),
}
// put whitespace into lst
let (tok, text) = raw_toks.pop().unwrap();
builder.token(tok.into(), text);
}
// insert forward parents into the tree in correct order
for kind in fw_parents.drain(..).rev() {
match kind {
NodeKind::Syntax(kind) => builder.start_node(kind.into()),
NodeKind::Error(err) => {
errors.push(err);
builder.start_node(SyntaxKind::SYNTAX_ERROR.into())
}
_ => {}
}
}
}
Event::Finish => builder.finish_node(),
Event::Eat { count } => (0..count).for_each(|_| {
let (tok, text) = raw_toks.pop().unwrap();
builder.token(tok.into(), text);
}),
}
}
// finish SYNTAX_ROOT
builder.finish_node();
ParserOutput {
green_node: builder.finish(),
errors,
_syntax_kind: PhantomData::<SyntaxKind>,
}
}
}
pub struct ParserBuilder<
'src,
SyntaxKind: SyntaxElement,
// SyntaxErr: SyntaxError,
> {
raw_toks: Vec<(SyntaxKind, &'src str)>,
meaningless_token_kinds: EnumSet<SyntaxKind>,
step_limit: u32,
}
impl<'src, SyntaxKind: SyntaxElement> ParserBuilder<'src, SyntaxKind> {
pub fn new(raw_toks: Vec<(SyntaxKind, &'src str)>) -> Self {
Self {
raw_toks,
meaningless_token_kinds: EnumSet::new(),
step_limit: 4096,
}
}
/// Sets the parser step limit.
/// Defaults to 4096
pub fn step_limit(mut self, new: u32) -> Self {
self.step_limit = new;
self
}
pub fn add_meaningless(mut self, kind: SyntaxKind) -> Self {
self.meaningless_token_kinds.insert(kind);
self
}
pub fn add_meaningless_many(mut self, kind: Vec<SyntaxKind>) -> Self {
self.meaningless_token_kinds
.insert_all(kind.into_iter().collect());
self
}
pub fn build<SyntaxErr: SyntaxError>(self) -> Parser<'src, SyntaxKind, SyntaxErr> {
let Self {
raw_toks,
meaningless_token_kinds,
step_limit,
} = self;
Parser {
input: Input::new(raw_toks, Some(meaningless_token_kinds)),
pos: 0,
events: Vec::new(),
step_limit,
steps: Cell::new(0),
}
}
}

9
crates/pawarser/src/parser/error.rs
View file

@ -1,9 +0,0 @@
use std::fmt;
/// A marker trait... for now!
// TODO: constrain that conversion to `NodeKind::Error` is enforced to be possible
pub trait SyntaxError
where
Self: fmt::Debug + Clone + PartialEq + Eq,
{
}

42
crates/pawarser/src/parser/event.rs
View file

@ -1,42 +0,0 @@
use enumset::EnumSetType;
use super::{error::SyntaxError, SyntaxElement};
pub enum Event<SyntaxKind: SyntaxElement, SyntaxErr: SyntaxError> {
Start {
kind: NodeKind<SyntaxKind, SyntaxErr>,
forward_parent: Option<usize>,
},
Finish,
Eat {
count: usize,
},
}
impl<SyntaxKind: SyntaxElement, SyntaxErr: SyntaxError> Event<SyntaxKind, SyntaxErr> {
pub fn tombstone() -> Self {
Self::Start {
kind: NodeKind::Tombstone,
forward_parent: None,
}
}
}
#[derive(Clone, PartialEq, Eq)]
pub enum NodeKind<SyntaxKind: SyntaxElement, SyntaxErr: SyntaxError> {
Tombstone,
Syntax(SyntaxKind),
Error(SyntaxErr),
}
impl<SyntaxKind: SyntaxElement, SyntaxErr: SyntaxError> NodeKind<SyntaxKind, SyntaxErr> {
pub fn is_tombstone(&self) -> bool {
matches!(self, Self::Tombstone)
}
pub fn is_syntax(&self) -> bool {
matches!(self, Self::Syntax(_))
}
pub fn is_error(&self) -> bool {
matches!(self, Self::Error(_))
}
}

67
crates/pawarser/src/parser/input.rs
View file

@ -1,67 +0,0 @@
use enumset::{EnumSet, EnumSetType};
use super::SyntaxElement;
pub struct Input<'src, SyntaxKind: SyntaxElement> {
raw: Vec<(SyntaxKind, &'src str)>,
// enumset of meaningless tokens
semantically_meaningless: EnumSet<SyntaxKind>,
// indices of non-meaningless tokens
meaningful_toks: Vec<usize>,
}
impl<'src, SyntaxKind: SyntaxElement> Input<'src, SyntaxKind> {
pub fn new(
raw_toks: Vec<(SyntaxKind, &'src str)>,
meaningless: Option<EnumSet<SyntaxKind>>,
) -> Self {
let mut meaningful_toks = Vec::new();
if let Some(meaningless) = meaningless {
let meaningful_toks = raw_toks
.iter()
.enumerate()
.filter_map(|(i, tok)| (!meaningless.contains(tok.0)).then_some(i))
.collect_into(&mut meaningful_toks);
}
Self {
raw: raw_toks,
semantically_meaningless: meaningless.unwrap_or_default(),
meaningful_toks,
}
}
pub fn kind(&self, idx: usize) -> SyntaxKind {
let Some(meaningful_idx) = self.meaningful_toks.get(idx) else {
return SyntaxKind::SYNTAX_EOF;
};
self.raw.get(*meaningful_idx).unwrap().0
}
pub fn preceding_meaningless(&self, idx: usize) -> usize {
assert!(self.meaningful_toks.len() > idx);
if idx == 0 {
// maybe should be `self.meaningful_toks[idx]` instead??
1
} else {
self.meaningful_toks[idx] - self.meaningful_toks[idx - 1]
}
}
/// get the count of meaningless tokens at the end of the file.
pub fn meaningless_tail_len(&self) -> usize {
self.raw.len() - (self.meaningful_toks.last().unwrap() + 1)
}
pub fn dissolve(self) -> (Vec<(SyntaxKind, &'src str)>, EnumSet<SyntaxKind>) {
let Self {
raw,
semantically_meaningless,
..
} = self;
(raw, semantically_meaningless)
}
}

97
crates/pawarser/src/parser/marker.rs
View file

@ -1,97 +0,0 @@
use drop_bomb::DropBomb;
use rowan::SyntaxKind;
use super::{
error::SyntaxError,
event::{Event, NodeKind},
Parser, SyntaxElement,
};
pub struct Marker {
pos: usize,
bomb: DropBomb,
}
impl Marker {
pub(super) fn new(pos: usize, name: &str) -> Self {
Self {
pos,
bomb: DropBomb::new(format!("Marker {name} must be completed or abandoned.")),
}
}
fn close_node<SyntaxKind: SyntaxElement, SyntaxErr: SyntaxError>(
mut self,
p: &mut Parser<SyntaxKind, SyntaxErr>,
kind: NodeKind<SyntaxKind, SyntaxErr>,
) -> CompletedMarker<SyntaxKind, SyntaxErr> {
self.bomb.defuse();
match &mut p.events[self.pos] {
Event::Start { kind: slot, .. } => *slot = kind.clone(),
_ => unreachable!(),
}
p.push_ev(Event::Finish);
CompletedMarker {
pos: self.pos,
kind,
}
}
pub fn complete<SyntaxKind: SyntaxElement, SyntaxErr: SyntaxError>(
self,
p: &mut Parser<SyntaxKind, SyntaxErr>,
kind: SyntaxKind,
) -> CompletedMarker<SyntaxKind, SyntaxErr> {
self.close_node(p, NodeKind::Syntax(kind))
}
pub fn error<SyntaxKind: SyntaxElement, SyntaxErr: SyntaxError>(
self,
p: &mut Parser<SyntaxKind, SyntaxErr>,
kind: SyntaxErr,
) -> CompletedMarker<SyntaxKind, SyntaxErr> {
self.close_node(p, NodeKind::Error(kind))
}
pub fn abandon<SyntaxKind: SyntaxElement, SyntaxErr: SyntaxError>(
mut self,
p: &mut Parser<SyntaxKind, SyntaxErr>,
) {
self.bomb.defuse();
// clean up empty tombstone event from marker
if self.pos == p.events.len() - 1 {
match p.events.pop() {
Some(Event::Start {
kind: NodeKind::Tombstone,
forward_parent: None,
}) => (),
_ => unreachable!(),
}
}
}
}
pub struct CompletedMarker<SyntaxKind: SyntaxElement, SyntaxErr: SyntaxError> {
pos: usize,
kind: NodeKind<SyntaxKind, SyntaxErr>,
}
impl<SyntaxKind: SyntaxElement, SyntaxErr: SyntaxError> CompletedMarker<SyntaxKind, SyntaxErr> {
pub fn precede(self, p: &mut Parser<SyntaxKind, SyntaxErr>, name: &str) -> Marker {
let new_pos = p.start(name);
match &mut p.events[self.pos] {
Event::Start { forward_parent, .. } => {
// point forward parent of the node this marker completed to the new node
// will later be used to make the new node a parent of the current node.
*forward_parent = Some(new_pos.pos - self.pos)
}
_ => unreachable!(),
}
new_pos
}
}

73
crates/pawarser/src/parser/output.rs
View file

@ -1,73 +0,0 @@
use std::{fmt, marker::PhantomData};
use rowan::{GreenNode, GreenNodeData, GreenTokenData, NodeOrToken};
use crate::{SyntaxElement, SyntaxError};
pub struct ParserOutput<SyntaxKind: SyntaxElement, SyntaxErr: SyntaxError> {
pub green_node: GreenNode,
pub errors: Vec<SyntaxErr>,
pub(super) _syntax_kind: PhantomData<SyntaxKind>,
}
impl<SyntaxKind: SyntaxElement, SyntaxErr: SyntaxError> std::fmt::Debug
for ParserOutput<SyntaxKind, SyntaxErr>
{
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
let mut errs: Vec<&SyntaxErr> = self.errors.iter().collect();
errs.reverse();
debug_print_output::<SyntaxKind, SyntaxErr>(
NodeOrToken::Node(&self.green_node),
f,
0,
&mut errs,
)
}
}
fn debug_print_output<SyntaxKind: SyntaxElement, SyntaxErr: SyntaxError>(
node: NodeOrToken<&GreenNodeData, &GreenTokenData>,
f: &mut std::fmt::Formatter<'_>,
lvl: i32,
errs: &mut Vec<&SyntaxErr>,
) -> std::fmt::Result {
if f.alternate() {
for _ in 0..lvl {
f.write_str(" ")?;
}
}
let maybe_newline = if f.alternate() { "\n" } else { " " };
match node {
NodeOrToken::Node(n) => {
let kind: SyntaxKind = node.kind().into();
if kind != SyntaxKind::SYNTAX_ERROR {
write!(f, "{:?} {{{maybe_newline}", kind)?;
} else {
let err = errs
.pop()
.expect("all error syntax nodes should correspond to an error");
write!(f, "{:?}: {err:?} {{{maybe_newline}", kind)?;
}
for c in n.children() {
debug_print_output::<SyntaxKind, SyntaxErr>(c, f, lvl + 1, errs)?;
}
if f.alternate() {
for _ in 0..lvl {
f.write_str(" ")?;
}
}
write!(f, "}}{maybe_newline}")
}
NodeOrToken::Token(t) => {
write!(
f,
"{:?} {:?};{maybe_newline}",
Into::<SyntaxKind>::into(t.kind()),
t.text()
)
}
}
}

11
crates/ir/Cargo.toml → crates/pl-cli/Cargo.toml
View file

@ -1,14 +1,11 @@
[package] [package]
name = "ir" name = "pl-cli"
version = "0.1.0" version = "0.1.0"
edition = "2021" edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies] [dependencies]
either = "1.9" clap = { workspace = true, features = [ "derive" ] }
ron = "0.8" rpl = { path = "../rpl" }
serde = { version = "1.0.193", features = ["derive"] } executor = { path = "../executor" }
[lints]
workspace = true

19
crates/pl-cli/src/main.rs Normal file
View file

@ -0,0 +1,19 @@
use std::{fs, path::PathBuf};
use clap::Parser;
use executor::{execute_all, Executors};
#[derive(Parser, Debug)]
pub struct Args {
file: PathBuf,
primary_executor: Executors,
}
fn main() {
let args = dbg!(Args::parse());
let f = fs::read_to_string(args.file).unwrap();
let pl = rpl::from_ron(&f);
execute_all(pl.0);
}

2
crates/prowocessing/src/experimental.rs
View file

@ -1,2 +0,0 @@
pub mod enum_based;
pub mod trait_based;

64
crates/prowocessing/src/experimental/enum_based.rs
View file

@ -1,64 +0,0 @@
pub enum Instruction {
Uppercase,
Lowercase,
}
pub struct Pipeline {
pipeline: Vec<fn(String) -> String>,
}
impl Pipeline {
pub fn run(&self, val: String) -> String {
let mut current = val;
for instr in &self.pipeline {
current = instr(current);
}
current
}
}
pub struct PipelineBuilder {
pipeline: Vec<Instruction>,
}
impl PipelineBuilder {
pub fn new() -> Self {
Self {
pipeline: Vec::new(),
}
}
#[must_use]
pub fn insert(mut self, instr: Instruction) -> Self {
self.pipeline.push(instr);
self
}
pub fn build(&self) -> Pipeline {
fn uppercase(v: String) -> String {
str::to_uppercase(&v)
}
fn lowercase(v: String) -> String {
str::to_lowercase(&v)
}
let mut res = Vec::new();
for item in &self.pipeline {
res.push(match item {
Instruction::Uppercase => uppercase,
Instruction::Lowercase => lowercase,
});
}
Pipeline { pipeline: res }
}
}
impl Default for PipelineBuilder {
fn default() -> Self {
Self::new()
}
}

11
crates/prowocessing/src/experimental/trait_based.rs
View file

@ -1,11 +0,0 @@
//! An experiment for a hyper-modular trait-based architecture.
//!
//! Patterns defining this (or well, which I reference a lot while writing this):
//! - [Command pattern using trait objects](https://rust-unofficial.github.io/patterns/patterns/behavioural/command.html)
//! - [Builder pattern](https://rust-unofficial.github.io/patterns/patterns/creational/builder.html)
pub mod data;
#[macro_use]
pub mod element;
pub mod ops;
pub mod pipeline;

5
crates/prowocessing/src/experimental/trait_based/data.rs
View file

@ -1,5 +0,0 @@
//! Definitions of the data transfer and storage types.
pub mod io;
pub mod raw;

53
crates/prowocessing/src/experimental/trait_based/data/io.rs
View file

@ -1,53 +0,0 @@
//! Types for element and pipeline IO
use std::{borrow::ToOwned, convert::Into};
use super::raw::Data;
/// Newtype struct with borrowed types for pipeline/element inputs, so that doesn't force a move or clone
#[derive(PartialEq, Eq, Debug)]
pub struct Inputs<'a>(pub Vec<&'a Data>);
impl<'a> From<Vec<&'a Data>> for Inputs<'a> {
fn from(value: Vec<&'a Data>) -> Self {
Self(value)
}
}
impl<'a, T: Into<&'a Data>> From<T> for Inputs<'a> {
fn from(value: T) -> Self {
Self(vec![value.into()])
}
}
impl<'a> From<&'a Outputs> for Inputs<'a> {
fn from(value: &'a Outputs) -> Self {
Self(value.0.iter().map(Into::into).collect())
}
}
/// Used for pipeline/element outputs
#[derive(PartialEq, Eq, Debug)]
pub struct Outputs(pub Vec<Data>);
impl Outputs {
/// consume self and return inner value(s)
pub fn into_inner(self) -> Vec<Data> {
self.0
}
}
impl From<Vec<Data>> for Outputs {
fn from(value: Vec<Data>) -> Self {
Self(value)
}
}
impl<T: Into<Data>> From<T> for Outputs {
fn from(value: T) -> Self {
Self(vec![value.into()])
}
}
impl From<Inputs<'_>> for Outputs {
fn from(value: Inputs) -> Self {
Self(value.0.into_iter().map(ToOwned::to_owned).collect())
}
}

20
crates/prowocessing/src/experimental/trait_based/data/raw.rs
View file

@ -1,20 +0,0 @@
//! Dynamic data storage and transfer types for use in [`io`]
// Dynamic data type
#[derive(Clone, Debug, PartialEq, Eq)]
pub enum Data {
String(String),
Int(i32),
}
impl From<String> for Data {
fn from(value: String) -> Self {
Self::String(value)
}
}
impl From<i32> for Data {
fn from(value: i32) -> Self {
Self::Int(value)
}
}

29
crates/prowocessing/src/experimental/trait_based/element.rs
View file

@ -1,29 +0,0 @@
//! The trait and type representations
use std::any::TypeId;
use crate::experimental::trait_based::data::io::Inputs;
use super::data::io::Outputs;
pub(crate) trait PipelineElement {
/// return a static runner function pointer to avoid dynamic dispatch during pipeline execution - Types MUST match the signature
fn runner(&self) -> fn(&Inputs) -> Outputs;
/// return the signature of the element
fn signature(&self) -> ElementSignature;
}
/// Type signature for an element used for static checking
pub(crate) struct ElementSignature {
pub inputs: Vec<TypeId>,
pub outputs: Vec<TypeId>,
}
macro_rules! signature {
($($inputs:ty),+ => $($outputs:ty),+) => (
ElementSignature {
inputs: vec![$(std::any::TypeId::of::<$inputs>(), )+],
outputs: vec![$(std::any::TypeId::of::<$outputs>(), )+]
}
)
}

7
crates/prowocessing/src/experimental/trait_based/ops.rs
View file

@ -1,7 +0,0 @@
mod num;
mod str;
pub mod prelude {
pub(crate) use super::num::*;
pub(crate) use super::str::*;
}

62
crates/prowocessing/src/experimental/trait_based/ops/num.rs
View file

@ -1,62 +0,0 @@
//! Operations on numeric data
use core::panic;
use std::any::TypeId;
use crate::experimental::trait_based::{
data::{
io::{Inputs, Outputs},
raw::Data,
},
element::{ElementSignature, PipelineElement},
};
/// Addition
pub struct Add(pub i32);
impl PipelineElement for Add {
fn runner(&self) -> fn(&Inputs) -> Outputs {
|input| {
let [Data::Int(i0), Data::Int(i1), ..] = input.0[..] else {
panic!("Invalid data passed")
};
(i0 + i1).into()
}
}
fn signature(&self) -> ElementSignature {
signature!(i32, i32 => i32)
}
}
/// Subtraction
pub struct Subtract(pub i32);
impl PipelineElement for Subtract {
fn runner(&self) -> fn(&Inputs) -> Outputs {
|input| {
let [Data::Int(i0), Data::Int(i1), ..] = input.0[..] else {
panic!("Invalid data passed")
};
(i0 + i1).into()
}
}
fn signature(&self) -> ElementSignature {
signature!(i32, i32 => i32)
}
}
/// Turn input to string
pub struct Stringify;
impl PipelineElement for Stringify {
fn runner(&self) -> fn(&Inputs) -> Outputs {
|input| {
let [Data::Int(int), ..] = input.0[..] else {
panic!("Invalid data passed")
};
int.to_string().into()
}
}
fn signature(&self) -> ElementSignature {
signature!(i32 => String)
}
}

59
crates/prowocessing/src/experimental/trait_based/ops/str.rs
View file

@ -1,59 +0,0 @@
//! Operation on String/text data
use crate::experimental::trait_based::{
data::{
io::{Inputs, Outputs},
raw::Data,
},
element::{ElementSignature, PipelineElement},
};
/// Concatenate the inputs
pub struct Concatenate(pub String);
impl PipelineElement for Concatenate {
fn runner(&self) -> fn(&Inputs) -> Outputs {
|input| {
let [Data::String(s0), Data::String(s1), ..] = input.0[..] else {
panic!("Invalid data passed")
};
format!("{s0}{s1}").into()
}
}
fn signature(&self) -> ElementSignature {
signature!(String, String => String)
}
}
/// Turn input text to uppercase
pub struct Upper;
impl PipelineElement for Upper {
fn runner(&self) -> fn(&Inputs) -> Outputs {
|input| {
let [Data::String(s), ..] = input.0[..] else {
panic!("Invalid data passed")
};
s.to_uppercase().into()
}
}
fn signature(&self) -> ElementSignature {
signature!(String => String)
}
}
/// Turn input text to lowercase
pub struct Lower;
impl PipelineElement for Lower {
fn runner(&self) -> fn(&Inputs) -> Outputs {
|input| {
let [Data::String(s), ..] = input.0[..] else {
panic!("Invalid data passed")
};
s.to_lowercase().into()
}
}
fn signature(&self) -> ElementSignature {
signature!(String => String)
}
}

107
crates/prowocessing/src/experimental/trait_based/pipeline.rs
View file

@ -1,107 +0,0 @@
use super::data::io::{Inputs, Outputs};
use super::element::PipelineElement;
use super::ops::prelude::*;
/// Builder for the pipelines that are actually run
///
/// TODO:
/// - Bind additional inputs if instruction has more then one and is passd without any additional
/// - allow binding to pointers to other pipelines?
/// - allow referencing earlier data
pub struct PipelineBuilder {
elements: Vec<Box<dyn PipelineElement>>,
}
impl PipelineBuilder {
/// Create new, empty builder
pub fn new() -> Self {
Self {
elements: Vec::new(),
}
}
/// Insert element into pipeline
fn insert<T: PipelineElement + 'static>(mut self, el: T) -> Self {
if let Some(previous_item) = self.elements.last() {
assert_eq!(
previous_item.signature().outputs[0],
el.signature().inputs[0]
);
}
self.elements.push(Box::new(el));
self
}
/// insert string concatenattion element
#[must_use]
pub fn concatenate(self, sec: String) -> Self {
self.insert(Concatenate(sec))
}
/// insert string uppercase element
#[must_use]
pub fn upper(self) -> Self {
self.insert(Upper)
}
/// insert string lowercase element
#[must_use]
pub fn lower(self) -> Self {
self.insert(Lower)
}
/// insert numeric addition element
#[must_use]
#[allow(
clippy::should_implement_trait,
reason = "is not equivalent to addition"
)]
pub fn add(self, sec: i32) -> Self {
self.insert(Add(sec))
}
/// insert numeric subtraction element
#[must_use]
pub fn subtract(self, sec: i32) -> Self {
self.insert(Subtract(sec))
}
/// insert stringify element
#[must_use]
pub fn stringify(self) -> Self {
self.insert(Stringify)
}
/// Build the pipeline. Doesn't check again - `insert` should verify correctness.
pub fn build(&self) -> Pipeline {
let mut r = Vec::new();
self.elements.iter().for_each(|el| r.push(el.runner()));
Pipeline { runners: r }
}
}
impl Default for PipelineBuilder {
fn default() -> Self {
Self::new()
}
}
/// Runnable pipeline - at the core of this library
pub struct Pipeline {
runners: Vec<fn(&Inputs) -> Outputs>,
}
impl Pipeline {
/// run the pipeline
pub fn run(&self, inputs: Inputs) -> Outputs {
let mut out: Outputs = inputs.into();
for runner in &self.runners {
out = runner(&(&out).into());
}
out
}
}

40
crates/prowocessing/src/lib.rs
View file

@ -1,40 +0,0 @@
//! # This is the image processing library for iOwO
//!
//! One of the design goals for this library is, however, to be a simple, generic image processing library.
//! For now, it's just indev... lets see what comes of it!
#![feature(lint_reasons)]
/// just some experiments, to test whether the architecture i want is even possible (or how to do it). probably temporary.
/// Gonna first try string processing...
pub mod experimental;
#[cfg(test)]
mod tests {
use crate::experimental::{
enum_based,
trait_based::{self, data::io::Outputs},
};
#[test]
fn test_enums() {
let builder = enum_based::PipelineBuilder::new().insert(enum_based::Instruction::Uppercase);
let upr = builder.build();
let upr_lowr = builder.insert(enum_based::Instruction::Lowercase).build();
assert_eq!(upr.run(String::from("Test")), String::from("TEST"));
assert_eq!(upr_lowr.run(String::from("Test")), String::from("test"));
}
#[test]
fn add() {
let pipe = trait_based::pipeline::PipelineBuilder::new()
.add(0)
.stringify()
.build();
assert_eq!(
pipe.run(vec![&2.into(), &3.into()].into()),
Outputs(vec![String::from("5").into()])
);
}
}

9
crates/prowocessing/Cargo.toml → crates/rpl/Cargo.toml
View file

@ -1,13 +1,10 @@
[package] [package]
name = "prowocessing" name = "rpl"
version = "0.1.0" version = "0.1.0"
edition = "2021" edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies] [dependencies]
image = "0.24.8" serde = { version = "1.0.193", features = [ "derive" ] }
palette = "0.7.4" ron = "0.8"
[lints]
workspace = true

47
crates/rpl/src/instructions/mod.rs Normal file
View file

@ -0,0 +1,47 @@
use serde::{Deserialize, Serialize};
pub mod read;
pub mod write;
#[derive(Serialize, Deserialize, PartialEq, Eq, Debug)]
pub enum Instruction {
Read(read::Read),
Write(write::Write),
Math(MathInstruction),
Blend(BlendInstruction),
Noise(NoiseInstruction),
Filter(FilterInstruction),
}
#[derive(Serialize, Deserialize, PartialEq, Eq, Debug)]
pub enum MathInstruction {
Add,
Subtract,
Multiply,
Divide,
}
#[derive(Serialize, Deserialize, PartialEq, Eq, Debug)]
pub enum BlendInstruction {
Normal,
Multiply,
Additive,
Overlay,
Screen,
Subtractive,
Difference,
Darken,
Lighten,
}
#[derive(Serialize, Deserialize, PartialEq, Eq, Debug)]
pub enum NoiseInstruction {
Perlin,
Simplex,
Voronoi,
}
#[derive(Serialize, Deserialize, PartialEq, Eq, Debug)]
pub enum FilterInstruction {
Invert,
}

19
crates/rpl/src/instructions/read.rs Normal file
View file

@ -0,0 +1,19 @@
use serde::{Deserialize, Serialize};
use std::path::PathBuf;
#[derive(Serialize, Deserialize, PartialEq, Eq, Debug)]
pub struct Read {
pub source: SourceType,
pub format: SourceFormat,
}
#[derive(Serialize, Deserialize, PartialEq, Eq, Debug)]
pub enum SourceType {
File(PathBuf),
}
#[derive(Serialize, Deserialize, PartialEq, Eq, Debug)]
pub enum SourceFormat {
Jpeg,
Png,
}

19
crates/rpl/src/instructions/write.rs Normal file
View file

@ -0,0 +1,19 @@
use serde::{Deserialize, Serialize};
use std::path::PathBuf;
#[derive(Serialize, Deserialize, PartialEq, Eq, Debug)]
pub struct Write {
pub target: TargetType,
pub format: TargetFormat,
}
#[derive(Serialize, Deserialize, PartialEq, Eq, Debug)]
pub enum TargetType {
File(PathBuf),
}
#[derive(Serialize, Deserialize, PartialEq, Eq, Debug)]
pub enum TargetFormat {
Jpeg,
Png,
}

38
crates/rpl/src/lib.rs Normal file
View file

@ -0,0 +1,38 @@
use instructions::Instruction;
use serde::{Deserialize, Serialize};
use crate::instructions::{
read::{SourceFormat, SourceType},
write::{TargetFormat, TargetType},
MathInstruction,
};
pub mod instructions;
pub fn from_ron(raw: &str) -> Rpl {
ron::from_str(raw).unwrap()
}
#[derive(Serialize, Deserialize, PartialEq, Eq, Debug)]
pub struct Rpl(pub Vec<Instruction>);
#[test]
fn test_simple_deserialize() {
const TEST_DATA: &str =
"([Read( (source: File(\"~/example/file.png\"), format: Png) ),Math(Add),Write(( target: File(\"~/example/out.jpg\"), format: Jpeg))])";
assert_eq!(
from_ron(TEST_DATA),
Rpl(vec![
Instruction::Read(instructions::read::Read {
source: SourceType::File("~/example/file.png".into()),
format: SourceFormat::Png
}),
Instruction::Math(MathInstruction::Add),
Instruction::Write(instructions::write::Write {
target: TargetType::File("~/example/out.jpg".into()),
format: TargetFormat::Jpeg
})
])
);
}

3
crates/rpl/src/value/mod.rs Normal file
View file

@ -0,0 +1,3 @@
pub enum DynamicValue {
Image(DynamicImage),
}

15
crates/svg-filters/Cargo.toml
View file

@ -1,15 +0,0 @@
[package]
name = "svg-filters"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
csscolorparser = "0.6.2"
indexmap = "2.2.5"
petgraph = { workspace = true }
quick-xml = { version = "0.31.0", features = ["serialize"] }
[lints]
workspace = true

158
crates/svg-filters/src/codegen.rs
View file

@ -1,158 +0,0 @@
use std::{
cmp,
collections::{BTreeSet, HashMap},
fmt::Display,
io::Read,
ops::Not,
};
use indexmap::IndexMap;
use petgraph::{
algo::toposort,
graph::DiGraph,
prelude::{EdgeIndex, NodeIndex},
};
use quick_xml::ElementWriter;
use crate::{
types::{
graph::{edge::Edge, FilterGraph, NodeInput},
nodes::{primitives::WriteElement, CommonAttrs},
},
Node,
};
use self::error::CodegenError;
pub struct SvgDocument {
filters: HashMap<String, FilterGraph>,
}
impl SvgDocument {
pub fn new() -> Self {
Self {
filters: HashMap::new(),
}
}
#[allow(clippy::unwrap_used, reason = "we literally just did the insertion")]
pub fn create_filter(&mut self, id: impl ToString) -> &mut FilterGraph {
let filter = FilterGraph::new();
self.filters.insert(id.to_string(), filter);
self.filters.get_mut(&id.to_string()).unwrap()
}
pub fn generate_svg_pretty(&self) -> String {
let mut result = Vec::new();
let doc_writer = quick_xml::Writer::new_with_indent(&mut result, b' ', 2);
self.generate(doc_writer);
String::from_utf8_lossy(&result).to_string()
}
pub fn generate_svg(&self) -> String {
let mut result = Vec::new();
let doc_writer = quick_xml::Writer::new(&mut result);
self.generate(doc_writer);
String::from_utf8_lossy(&result).to_string()
}
fn generate(&self, mut doc_writer: quick_xml::Writer<&mut Vec<u8>>) {
doc_writer
.create_element("svg")
.write_inner_content(|writer| {
self.filters
.iter()
.try_fold(writer, Self::gen_filter)
.map(|_| {})
});
}
fn gen_filter<'w, 'r>(
writer: &'w mut quick_xml::Writer<&'r mut Vec<u8>>,
(id, graph): (&String, &FilterGraph),
) -> Result<&'w mut quick_xml::Writer<&'r mut Vec<u8>>, CodegenError> {
writer
.create_element("filter")
.with_attribute(("id", id.as_str()))
.write_inner_content(|writer| Self::graph_to_svg(writer, graph))
}
fn graph_to_svg(
writer: &mut quick_xml::Writer<&mut Vec<u8>>,
graph: &FilterGraph,
) -> Result<(), CodegenError> {
let sorted = toposort(&graph.dag, None).expect("no cycles allowed in a DAG");
sorted
.into_iter()
.filter_map(|node_idx| {
graph
.dag
.node_weight(node_idx)
.and_then(|node| node.primitive())
.map(|(primitive, common_attrs)| (node_idx, primitive, common_attrs))
})
.try_fold(writer, |writer, (node_idx, primitive, common_attrs)| {
primitive.element_writer(
writer,
*common_attrs,
graph
.inputs(node_idx)
.into_iter()
.map(|v| v.to_string())
.collect(),
graph
.outputs(node_idx)
.is_empty()
.not()
.then_some(format!("r{}", node_idx.index())),
)
})?;
Ok(())
}
}
/// convenience method to avoid fuckups during future changes
fn format_edge_idx(idx: EdgeIndex) -> String {
format!("edge{}", idx.index())
}
fn format_node_idx(node_idx: NodeIndex) -> String {
format!("r{}", node_idx.index())
}
mod error {
use std::{error::Error, fmt::Display};
#[derive(Debug)]
pub enum CodegenError {
QuickXmlError(quick_xml::Error),
}
impl From<quick_xml::Error> for CodegenError {
fn from(value: quick_xml::Error) -> Self {
Self::QuickXmlError(value)
}
}
impl Display for CodegenError {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
CodegenError::QuickXmlError(e) => e.fmt(f),
}
}
}
impl Error for CodegenError {}
}
impl Default for SvgDocument {
fn default() -> Self {
Self::new()
}
}

40
crates/svg-filters/src/lib.rs
View file

@ -1,40 +0,0 @@
#![feature(lint_reasons)]
#[macro_use]
pub mod util {
macro_rules! gen_attr {
($name:literal = $out:expr) => {
quick_xml::events::attributes::Attribute {
key: quick_xml::name::QName($name),
value: std::borrow::Cow::from(($out).to_string().into_bytes()),
}
};
}
macro_rules! gen_attrs {
($($name:literal: $out:expr),+) => {
vec![
$(gen_attr!($name = $out)),+
]
};
($($cond:expr => $name:literal: $out:expr),+) => {
{
let mut r = Vec::new();
$(if $cond {
r.push(gen_attr!($name = $out));
})+
r
}
};
($other:ident; $($cond:expr => $name:literal: $out:expr),+) => {
$other.append(&mut gen_attrs![$($cond => $name: $out),+]);
};
}
}
pub mod codegen;
pub mod types;
pub use types::nodes::Node;
#[cfg(test)]
mod tests;

65
crates/svg-filters/src/main.rs
View file

@ -1,65 +0,0 @@
use svg_filters::{
codegen::SvgDocument,
types::nodes::{
primitives::{
blend::BlendMode,
color_matrix::ColorMatrixType,
component_transfer::TransferFn,
displacement_map::Channel,
turbulence::{NoiseType, StitchTiles},
},
standard_input::StandardInput,
},
};
fn main() {
let mut doc = SvgDocument::new();
let f = doc.create_filter("cmyk-chromabb");
let noise = f.turbulence(0., 0.1, 2, 0, StitchTiles::Stitch, NoiseType::FractalNoise);
let noise = f.component_transfer_rgba(
noise,
TransferFn::Discrete {
table_values: vec![0., 0.2, 0.4, 0.6, 0.8, 1.],
},
TransferFn::Discrete {
table_values: vec![0., 0.2, 0.4, 0.6, 0.8, 1.],
},
TransferFn::Discrete {
table_values: vec![0., 0.2, 0.4, 0.6, 0.8, 1.],
},
TransferFn::Linear {
slope: 0.,
intercept: 0.5,
},
);
let cyan = f.color_matrix(
StandardInput::SourceGraphic,
ColorMatrixType::Matrix(Box::new([
0., 0., 0., 0., 0., //
0., 1., 0., 0., 0., //
0., 0., 1., 0., 0., //
0., 0., 0., 1., 0.,
])),
);
let cyan = f.offset(cyan, 25., 0.);
let cyan = f.displacement_map(cyan, noise, 50., Channel::R, Channel::A);
let magenta = f.color_matrix(
StandardInput::SourceGraphic,
ColorMatrixType::Matrix(Box::new([
1., 0., 0., 0., 0., //
0., 0., 0., 0., 0., //
0., 0., 1., 0., 0., //
0., 0., 0., 1., 0.,
])),
);
let magenta = f.displacement_map(magenta, noise, 50., Channel::R, Channel::A);
let magenta = f.offset(magenta, -25., 0.);
f.blend(cyan, magenta, BlendMode::Screen);
println!("{}", doc.generate_svg_pretty());
}

17
crates/svg-filters/src/tests.rs
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@ -1,17 +0,0 @@
mod blend;
mod color_matrix;
mod complex;
mod component_transfer;
mod displacement_map;
mod flood;
mod gaussian_blur;
mod offset;
mod turbulence;
mod composite {}
mod convolve_matrix {}
mod diffuse_lighting {}
mod image {}
mod merge {}
mod morphology {}
mod specular_lighting {}
mod tile {}

20
crates/svg-filters/src/tests/blend.rs
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@ -1,20 +0,0 @@
use crate::{
codegen::SvgDocument,
types::nodes::{primitives::blend::BlendMode, standard_input::StandardInput},
};
#[test]
fn test_offset_blend() {
let mut doc = SvgDocument::new();
let blend = doc.create_filter("blend");
let offset0 = blend.offset(StandardInput::SourceGraphic, 100., 0.);
let offset1 = blend.offset(StandardInput::SourceGraphic, -100., 0.);
blend.blend(offset0, offset1, BlendMode::Multiply);
assert_eq!(
doc.generate_svg(),
r#"<svg><filter id="blend"><feOffset dx="-100" dy="0" in="SourceGraphic" result="r7"/><feOffset dx="100" dy="0" in="SourceGraphic" result="r6"/><feBlend mode="multiply" in="r6" in2="r7"/></filter></svg>"#
);
}

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