js boilerplate

Cargo.lock

@@ -14,6 +14,16 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
+[[package]]
+name = "console_error_panic_hook"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a06aeb73f470f66dcdbf7223caeebb85984942f22f1adb2a088cf9668146bbbc"
+dependencies = [
+ "cfg-if",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "gamarjoba"
 version = "0.1.0"
@@ -21,6 +31,14 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "game-of-life"
+version = "0.1.0"
+dependencies = [
+ "console_error_panic_hook",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "log"
 version = "0.4.20"

Cargo.toml

@@ -1,5 +1,6 @@
 [workspace]
 resolver = "2"
 members = [
-    "checkerboard"
+    "checkerboard",
+    "game-of-life",
 ]

game-of-life/.gitignore

@@ -0,0 +1 @@
+node_modules

game-of-life/Cargo.toml

@@ -0,0 +1,20 @@
+[package]
+name = "game-of-life"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[lib]
+crate-type = ["cdylib", "rlib"]
+
+[features]
+default = ["console_error_panic_hook"]
+
+[dependencies]
+wasm-bindgen = "0.2.84"
+console_error_panic_hook = { version = "0.1.7", optional = true }
+
+[profile.release]
+# Tell `rustc` to optimize for small code size.
+opt-level = "s"

game-of-life/justfile

@@ -0,0 +1,8 @@
+_default:
+    just --list
+
+wasm_pack :=  "~/.cargo/bin/wasm-pack"
+
+# Use wasm-pack to build
+build:
+    {{wasm_pack}} build

game-of-life/package.json

@@ -0,0 +1,15 @@
+{
+  "name": "game-of-life",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "devDependencies": {
+    "parcel": "^2.10.3"
+  }
+}

game-of-life/src/lib.rs

@@ -0,0 +1,13 @@
+mod util;
+
+use wasm_bindgen::prelude::*;
+
+#[wasm_bindgen]
+extern "C" {
+    fn alert(s: &str);
+}
+
+#[wasm_bindgen]
+pub fn greet() {
+    alert("Hello, {{project-name}}!");
+}

game-of-life/src/util.rs

@@ -0,0 +1,10 @@
+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();
+}