Simplify test and example init code

packages/npm-packages/ruby-wasm-wasi/example/index.web.js

@@ -1,40 +1,13 @@
 import { WASI } from "./node_modules/@wasmer/wasi";
 import { WasmFs } from "@wasmer/wasmfs";
-import { RubyVM } from "ruby-wasm-wasi";
+import { DefaultRubyVM } from "ruby-wasm-wasi/dist/default/browser.esm";
 
 const main = async () => {
-  // Setup WASI emulation
-  const wasmFs = new WasmFs();
-  const originalWriteSync = wasmFs.fs.writeSync.bind(wasmFs.fs);
-  wasmFs.fs.writeSync = (fd, buffer, offset, length, position) => {
-    const text = new TextDecoder("utf-8").decode(buffer);
-    const handlers = {
-      1: (line) => console.log(line),
-      2: (line) => console.warn(line),
-    };
-    if (handlers[fd]) handlers[fd](text);
-    return originalWriteSync(fd, buffer, offset, length, position);
-  };
-  const wasi = new WASI({
-    bindings: {
-      ...WASI.defaultBindings,
-      fs: wasmFs.fs,
-    },
-  });
   // Fetch and instntiate WebAssembly binary
   const response = await fetch("./node_modules/ruby-wasm-wasi/dist/ruby.wasm");
   const buffer = await response.arrayBuffer();
-  const vm = new RubyVM();
-  const imports = {
-    wasi_snapshot_preview1: wasi.wasiImport,
-  };
-  vm.addToImports(imports);
-
-  const { instance } = await WebAssembly.instantiate(buffer, imports);
-  await vm.setInstance(instance);
-  // Start WASI application
-  wasi.setMemory(instance.exports.memory);
-  vm.initialize();
+  const module = await WebAssembly.compile(buffer);
+  const vm = await DefaultRubyVM(module);
 
   vm.printVersion();
 

packages/npm-packages/ruby-wasm-wasi/test/init.ts

@@ -1,24 +1,12 @@
-import { WASI } from "wasi";
 import fs from "fs/promises";
 import path from "path";
-import { RubyVM } from "../dist/index.umd.js";
+import { DefaultRubyVM } from "../dist/default/node.cjs";
 
 const rubyModule = (async () => {
   const binary = await fs.readFile(path.join(__dirname, "./../dist/ruby.wasm"));
   return await WebAssembly.compile(binary.buffer);
 })();
 
 export const initRubyVM = async () => {
-  const wasi = new WASI();
-  const vm = new RubyVM();
-  const imports = {
-    wasi_snapshot_preview1: wasi.wasiImport,
-  };
-  vm.addToImports(imports);
-
-  const instance = await WebAssembly.instantiate(await rubyModule, imports);
-  await vm.setInstance(instance);
-  wasi.initialize(instance);
-  vm.initialize();
-  return vm;
+  return DefaultRubyVM(await rubyModule);
 };