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Set up a demo wasm build

This commit is contained in:
Savanni D'Gerinel 2023-04-20 09:40:59 -04:00
parent d74c9ebcad
commit 6a421d447b
6 changed files with 182 additions and 0 deletions
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1
flake.nix
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@ -39,6 +39,7 @@
pkgs.sqlite
pkgs.rustup
pkgs.crate2nix
pkgs.wasm-pack
];
LIBCLANG_PATH="${pkgs.llvmPackages.libclang.lib}/lib";
};

126
kifu/hello-wasm/Cargo.lock generated Normal file
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@ -0,0 +1,126 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 3
[[package]]
name = "bumpalo"
version = "3.12.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
name = "hello-wasm"
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dependencies = [
"wasm-bindgen",
]
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12
kifu/hello-wasm/Cargo.toml Normal file
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@ -0,0 +1,12 @@
[package]
name = "hello-wasm"
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"]
[dependencies]
wasm-bindgen = "0.2"

15
kifu/hello-wasm/index.html Normal file
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@ -0,0 +1,15 @@
<!DOCTYPE html>
<html lang="en-US">
<head>
<meta charset="utf-8" />
<title>hello-wasm example</title>
</head>
<body>
<script type="module">
import init, { greet } from "./pkg/hello_wasm.js";
init().then(() => {
greet("WebAssembly");
});
</script>
</body>
</html>

27
kifu/hello-wasm/src/lib.rs Normal file
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@ -0,0 +1,27 @@
use wasm_bindgen::prelude::*;
#[wasm_bindgen]
extern "C" {
pub fn alert(s: &str);
}
#[wasm_bindgen]
pub fn greet(name: &str) {
alert(&format!("Hello, {}!", name));
}
#[wasm_bindgen]
pub fn add(left: usize, right: usize) -> usize {
left + right
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn it_works() {
let result = add(2, 2);
assert_eq!(result, 4);
}
}

1
rust-toolchain
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@ -1,2 +1,3 @@
[toolchain]
channel = "1.68.2"
targets = [ "wasm32-unknown-unknown" ]