Fixes #97: SQLite is now async, optimized, tests

plugos/sqlite/deno-sqlite/build/hack/bundle.js

@@ -0,0 +1,62 @@
+const [src, dest] = Deno.args;
+
+const wasm = await Deno.readFile(src);
+
+function encode(bytes) {
+  let binary = "";
+  for (let i = 0; i < bytes.length; i++) {
+    binary += String.fromCharCode(bytes[i]);
+  }
+  return btoa(binary).replace(/\n/g, "");
+}
+
+await Deno.writeFile(
+  dest,
+  new TextEncoder().encode(
+    `/// <reference types="./sqlite.d.ts" />
+
+/* This file is automatically generated. Do not edit directly. */
+import env from "./vfs.js";
+
+const wasm =
+  "${encode(wasm)}";
+
+function decode(base64) {
+  const bytesStr = atob(base64);
+  const bytes = new Uint8Array(bytesStr.length);
+  for (let i = 0, c = bytesStr.length; i < c; i++) {
+    bytes[i] = bytesStr.charCodeAt(i);
+  }
+  return bytes;
+}
+
+const moduleOrInstance = {
+  module: null,
+  instances: [],
+};
+
+export async function compile() {
+  moduleOrInstance.module = await WebAssembly.compile(decode(wasm));
+}
+
+export async function instantiateBrowser() {
+  const placeholder = { exports: null };
+  const instance = await WebAssembly.instantiate(moduleOrInstance.module, env(placeholder));
+  placeholder.exports = instance.exports;
+  instance.exports.seed_rng(Date.now());
+  moduleOrInstance.instances.push(instance);
+}
+
+export function instantiate() {
+  if (moduleOrInstance.instances.length) {
+    return moduleOrInstance.instances.pop();
+  } else {
+    const placeholder = { exports: null };
+    const instance = new WebAssembly.Instance(moduleOrInstance.module, env(placeholder));
+    placeholder.exports = instance.exports;
+    instance.exports.seed_rng(Date.now());
+    return instance;
+  }
+}`,
+  ),
+);