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Shad Amethyst 2 years ago
commit 9034801373
Signed by: amethyst
GPG Key ID: D970C8DD1D6DEE36

6
.gitignore vendored

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target/
**/*.rs.bk
Cargo.lock
bin/
pkg/
wasm-pack.log

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[workspace]
members = [
"stackline-wasm",
"stackline"
]
[profile.release]
# Tell `rustc` to optimize for small code size.
opt-level = "s"

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8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
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END OF TERMS AND CONDITIONS

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Copyright (c) 2018 Adrien Burgun <adrien.burgun@orange.fr>
Permission is hereby granted, free of charge, to any
person obtaining a copy of this software and associated
documentation files (the "Software"), to deal in the
Software without restriction, including without
limitation the rights to use, copy, modify, merge,
publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software
is furnished to do so, subject to the following
conditions:
The above copyright notice and this permission notice
shall be included in all copies or substantial portions
of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.

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# Stackline v2
This is the successor of [stackline](https://github.com/adri326/stackline), an esoteric language inspired by [Wireworld](https://mathworld.wolfram.com/WireWorld.html) and [ORCA](https://github.com/hundredrabbits/Orca).

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install:
- appveyor-retry appveyor DownloadFile https://win.rustup.rs/ -FileName rustup-init.exe
- if not defined RUSTFLAGS rustup-init.exe -y --default-host x86_64-pc-windows-msvc --default-toolchain nightly
- set PATH=%PATH%;C:\Users\appveyor\.cargo\bin
- rustc -V
- cargo -V
build: false
test_script:
- cargo test --locked

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language: rust
sudo: false
cache: cargo
matrix:
include:
# Builds with wasm-pack.
- rust: beta
env: RUST_BACKTRACE=1
addons:
firefox: latest
chrome: stable
before_script:
- (test -x $HOME/.cargo/bin/cargo-install-update || cargo install cargo-update)
- (test -x $HOME/.cargo/bin/cargo-generate || cargo install --vers "^0.2" cargo-generate)
- cargo install-update -a
- curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh -s -- -f
script:
- cargo generate --git . --name testing
# Having a broken Cargo.toml (in that it has curlies in fields) anywhere
# in any of our parent dirs is problematic.
- mv Cargo.toml Cargo.toml.tmpl
- cd testing
- wasm-pack build
- wasm-pack test --chrome --firefox --headless
# Builds on nightly.
- rust: nightly
env: RUST_BACKTRACE=1
before_script:
- (test -x $HOME/.cargo/bin/cargo-install-update || cargo install cargo-update)
- (test -x $HOME/.cargo/bin/cargo-generate || cargo install --vers "^0.2" cargo-generate)
- cargo install-update -a
- rustup target add wasm32-unknown-unknown
script:
- cargo generate --git . --name testing
- mv Cargo.toml Cargo.toml.tmpl
- cd testing
- cargo check
- cargo check --target wasm32-unknown-unknown
- cargo check --no-default-features
- cargo check --target wasm32-unknown-unknown --no-default-features
- cargo check --no-default-features --features console_error_panic_hook
- cargo check --target wasm32-unknown-unknown --no-default-features --features console_error_panic_hook
- cargo check --no-default-features --features "console_error_panic_hook wee_alloc"
- cargo check --target wasm32-unknown-unknown --no-default-features --features "console_error_panic_hook wee_alloc"
# Builds on beta.
- rust: beta
env: RUST_BACKTRACE=1
before_script:
- (test -x $HOME/.cargo/bin/cargo-install-update || cargo install cargo-update)
- (test -x $HOME/.cargo/bin/cargo-generate || cargo install --vers "^0.2" cargo-generate)
- cargo install-update -a
- rustup target add wasm32-unknown-unknown
script:
- cargo generate --git . --name testing
- mv Cargo.toml Cargo.toml.tmpl
- cd testing
- cargo check
- cargo check --target wasm32-unknown-unknown
- cargo check --no-default-features
- cargo check --target wasm32-unknown-unknown --no-default-features
- cargo check --no-default-features --features console_error_panic_hook
- cargo check --target wasm32-unknown-unknown --no-default-features --features console_error_panic_hook
# Note: no enabling the `wee_alloc` feature here because it requires
# nightly for now.

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[package]
name = "stackline-wasm"
version = "0.1.0"
authors = ["Adrien Burgun <adrien.burgun@orange.fr>"]
edition = "2018"
[lib]
crate-type = ["cdylib", "rlib"]
[features]
default = ["console_error_panic_hook"]
[dependencies]
wasm-bindgen = "0.2.63"
stackline = { path = "../stackline" }
# The `console_error_panic_hook` crate provides better debugging of panics by
# logging them with `console.error`. This is great for development, but requires
# all the `std::fmt` and `std::panicking` infrastructure, so isn't great for
# code size when deploying.
console_error_panic_hook = { version = "0.1.6", optional = true }
# `wee_alloc` is a tiny allocator for wasm that is only ~1K in code size
# compared to the default allocator's ~10K. It is slower than the default
# allocator, however.
#
# Unfortunately, `wee_alloc` requires nightly Rust when targeting wasm for now.
wee_alloc = { version = "0.4.5", optional = true }
[dev-dependencies]
wasm-bindgen-test = "0.3.13"

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# stackline-wasm
WASM bindings for stackline.

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mod utils;
use wasm_bindgen::prelude::*;
// When the `wee_alloc` feature is enabled, use `wee_alloc` as the global
// allocator.
#[cfg(feature = "wee_alloc")]
#[global_allocator]
static ALLOC: wee_alloc::WeeAlloc = wee_alloc::WeeAlloc::INIT;
#[wasm_bindgen]
extern {
fn alert(s: &str);
}
#[wasm_bindgen]
pub fn greet() {
alert("Hello, stackline2-wasm!");
}

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pub fn set_panic_hook() {
// When the `console_error_panic_hook` feature is enabled, we can call the
// `set_panic_hook` function at least once during initialization, and then
// we will get better error messages if our code ever panics.
//
// For more details see
// https://github.com/rustwasm/console_error_panic_hook#readme
#[cfg(feature = "console_error_panic_hook")]
console_error_panic_hook::set_once();
}

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//! Test suite for the Web and headless browsers.
#![cfg(target_arch = "wasm32")]
extern crate wasm_bindgen_test;
use wasm_bindgen_test::*;
wasm_bindgen_test_configure!(run_in_browser);
#[wasm_bindgen_test]
fn pass() {
assert_eq!(1 + 1, 2);
}

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[package]
name = "stackline"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
dyn-clone = "1.0"

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use std::cell::RefCell;
use std::num::NonZeroUsize;
use std::rc::Weak;
pub mod utils;
use utils::*;
pub mod tile;
use tile::*;
mod signal;
pub use signal::*;
pub struct World {
tiles: Vec<RefCell<FullTile>>,
width: NonZeroUsize,
height: NonZeroUsize,
signals: Vec<Weak<Signal>>,
}
impl World {
pub fn empty(width: usize, height: usize) -> Option<Self> {
// TODO: check that width * height is a valid usize
Some(Self {
width: width.try_into().ok()?,
height: height.try_into().ok()?,
tiles: vec![RefCell::new(FullTile::default()); width * height],
signals: vec![],
})
}
pub fn send_signal(
&mut self,
position: (usize, usize),
signal: Signal,
) -> Option<Weak<Signal>> {
let tile = self.get(position)?;
let weak = {
let mut guard = tile.try_borrow_mut().ok()?;
guard.set_signal(signal)?
};
self.signals.push(weak.clone());
Some(weak)
}
/// Returns `Some((x + Δx, y + Δy))` iff `(x + Δx, y + Δy)` is inside the world
#[inline]
pub fn offset(&self, position: (usize, usize), offset: (i8, i8)) -> Option<(usize, usize)> {
if offset.0 < 0 && (-offset.0) as usize > position.0
|| offset.1 < 0 && (-offset.1) as usize > position.1
{
return None;
}
// TODO: check that position and position + offset are valid isize values
let new_pos = (
(position.0 as isize + offset.0 as isize) as usize,
(position.1 as isize + offset.1 as isize) as usize,
);
if new_pos.0 < self.width.get() && new_pos.1 < self.height.get() {
Some(new_pos)
} else {
None
}
}
#[inline]
pub fn get<'b>(&'b self, position: (usize, usize)) -> Option<&'b RefCell<FullTile>> {
if !self.in_bounds(position) {
return None;
}
self.tiles.get(position.1 * self.width.get() + position.0)
}
#[inline]
pub fn in_bounds(&self, position: (usize, usize)) -> bool {
position.0 < self.width.get() && position.1 < self.height.get()
}
}

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use super::*;
#[derive(Clone, Debug)]
pub struct Signal {
pub direction: Direction,
}
impl Signal {
pub fn clone_with_dir(&self, direction: Direction) -> Self {
let mut res = self.clone();
res.direction = direction;
res
}
}

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use super::*;
use dyn_clone::{clone_box, DynClone};
use std::rc::Rc;
mod wire;
pub use wire::*;
/** Represents a tile that may be empty and may have a signal. The tile may only have a signal if it isn't empty.
Cloning a `FullTile` results in a `FullTile` that does not have any signal.
## Invariants
- `self.cell.is_none() -> self.signal.is_none()`
- `self.accepts_signal() -> self.cell.is_some()`
**/
#[derive(Clone, Debug)]
pub struct FullTile {
cell: Option<AnyTile>,
signal: Option<Rc<Signal>>,
}
impl FullTile {
pub fn new(cell: Option<AnyTile>) -> Self {
Self { cell, signal: None }
}
pub fn update(&mut self, world: &mut World, pos: (usize, usize)) {
match self.cell {
Some(ref mut tile) => {
tile.update(world, &mut self.signal, pos);
}
None => {}
}
}
pub fn accepts_signal(&self, direction: Direction) -> bool {
match self.cell {
Some(ref tile) => tile.accepts_signal(direction),
None => false,
}
}
/// Returns Some(signal) iff self.cell.is_some()
pub fn set_signal(&mut self, signal: Signal) -> Option<Weak<Signal>> {
if self.cell.is_some() {
let rc = Rc::new(signal);
let weak = Rc::downgrade(&rc);
self.signal = Some(rc);
Some(weak)
} else {
None
}
}
}
impl Default for FullTile {
fn default() -> Self {
Self::new(None)
}
}
pub trait Tile: DynClone + std::fmt::Debug {
fn update(&mut self, world: &mut World, signal: &mut Option<Rc<Signal>>, pos: (usize, usize));
/// Should return true iff the tile accepts a signal travelling in `Direction`
fn accepts_signal(&self, _direction: Direction) -> bool {
true
}
}
#[derive(Debug)]
pub struct AnyTile(Box<dyn Tile>);
impl AnyTile {
fn update(&mut self, world: &mut World, signal: &mut Option<Rc<Signal>>, pos: (usize, usize)) {
self.0.update(world, signal, pos)
}
fn accepts_signal(&self, direction: Direction) -> bool {
self.0.accepts_signal(direction)
}
}
impl Clone for AnyTile {
fn clone(&self) -> Self {
Self(clone_box(self.0.as_ref()))
}
}

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//! Wires and diodes
use super::*;
#[derive(Clone, Debug)]
pub struct Wire(Orientation);
impl Tile for Wire {
fn update(&mut self, world: &mut World, signal: &mut Option<Rc<Signal>>, pos: (usize, usize)) {
if let Some(signal) = std::mem::take(signal) {
for &direction in self.0.into_directions() {
if direction == signal.direction.opposite() {
continue;
}
if let Some(new_pos) = world.offset(pos, direction.into_offset()) {
let tile = world.get(new_pos).unwrap();
if tile.borrow().accepts_signal(direction) {
world.send_signal(new_pos, (*signal).clone_with_dir(direction)).unwrap();
}
}
}
}
}
fn accepts_signal(&self, direction: Direction) -> bool {
self.0.contains(direction)
}
}
#[derive(Clone, Debug)]
pub struct Diode(Direction);
impl Tile for Diode {
fn update(&mut self, world: &mut World, signal: &mut Option<Rc<Signal>>, pos: (usize, usize)) {
if let Some(signal) = std::mem::take(signal) {
if let Some(new_pos) = world.offset(pos, self.0.into_offset()) {
let tile = world.get(new_pos).unwrap();
if tile.borrow().accepts_signal(self.0) {
world.send_signal(new_pos, (*signal).clone_with_dir(self.0)).unwrap();
}
}
}
}
}

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/// Represents one or many undirected orientation(s), since we are in a 2D grid, this may either be [Horizontal], [Vertical] or both ([Any])
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
#[repr(u8)]
pub enum Orientation {
Horizontal,
Vertical,
Any,
}
/// Represents one directed orientation
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
#[repr(u8)]
pub enum Direction {
Up,
Down,
Left,
Right,
}
const HORIZONTAL: [Direction; 2] = [Direction::Left, Direction::Right];
const VERTICAL: [Direction; 2] = [Direction::Up, Direction::Down];
const ANY: [Direction; 4] = [
Direction::Up,
Direction::Down,
Direction::Left,
Direction::Right,
];
impl Orientation {
/// Converts an [Orientation] into an array of [Direction]s
#[inline]
pub fn into_directions(self) -> &'static [Direction] {
match self {
Orientation::Horizontal => &HORIZONTAL,
Orientation::Vertical => &VERTICAL,
Orientation::Any => &ANY,
}
}
/// Returns true iff `dir ∈ self`
#[inline]
pub fn contains(&self, dir: Direction) -> bool {
match (self, dir) {
(Orientation::Vertical, Direction::Up) => true,
(Orientation::Vertical, Direction::Down) => true,
(Orientation::Horizontal, Direction::Left) => true,
(Orientation::Horizontal, Direction::Right) => true,
(Orientation::Any, _) => true,
_ => false,
}
}
}
impl Direction {
/// Converts a [Direction] in a pair `(Δx, Δy)`, with [Up] being equal to `(0, -1)`
#[inline]
pub fn into_offset(self) -> (i8, i8) {
match self {
Direction::Up => (0, -1),
Direction::Down => (0, 1),
Direction::Left => (-1, 0),
Direction::Right => (1, 0),
}
}
/// Returns the opposite direction
#[inline]
pub fn opposite(self) -> Self {
match self {
Direction::Up => Direction::Down,
Direction::Down => Direction::Up,
Direction::Left => Direction::Right,
Direction::Right => Direction::Left,
}
}
}
#[cfg(test)]
mod test {
use super::*;
#[test]
fn test_orientation_contains_self() {
let list = [
Orientation::Horizontal,
Orientation::Vertical,
Orientation::Any,
];
for orientation in list.into_iter() {
for direction in orientation.into_directions() {
assert!(orientation.contains(*direction));
}
}
}
}
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