init. reproduces rust-random/rand#1016

kazcw · Aug 19, 2020 · e464734 · e464734
commit e464734
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diff --git a/.gitignore b/.gitignore
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+/target
diff --git a/Cargo.lock b/Cargo.lock
diff --git a/Cargo.toml b/Cargo.toml
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+[package]
+name = "rand1016"
+version = "0.1.0"
+authors = ["Kaz Wesley <kaz@lambdaverse.org>"]
+edition = "2018"
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies]
+wasm-bindgen = "0.2"
+rand = "0.7"
diff --git a/index.html b/index.html
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+<html>
+  <head>
+    <meta content="text/html;charset=utf-8" http-equiv="Content-Type"/>
+  </head>
+  <body>
+    <!-- Note the usage of `type=module` here as this is an ES6 module -->
+    <script type="module">
+      import init, { test_rand1016 } from './pkg/rand1016.js';
+      async function run() {
+        await init();
+        const result = test_rand1016();
+        console.log(`result = ${result}`);
+      }
+      run();
+    </script>
+  </body>
+</html>
diff --git a/src/lib.rs b/src/lib.rs
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+use rand::Rng;
+
+use wasm_bindgen::prelude::*;
+
+#[wasm_bindgen(start)]
+pub fn main() -> Result<(), JsValue> { Ok(()) }
+
+#[wasm_bindgen]
+pub fn test_rand1016() -> u32 {
+    rand::thread_rng().gen()
+}