restructure js bindings

bindings/javascript/packages/browser/index.js

@@ -0,0 +1,77 @@
+import {
+  createOnMessage as __wasmCreateOnMessageForFsProxy,
+  getDefaultContext as __emnapiGetDefaultContext,
+  instantiateNapiModule as __emnapiInstantiateNapiModule,
+  WASI as __WASI,
+} from '@napi-rs/wasm-runtime'
+
+
+
+const __wasi = new __WASI({
+  version: 'preview1',
+})
+
+const __wasmUrl = new URL('./turso.wasm32-wasi.debug.wasm', import.meta.url).href
+const __emnapiContext = __emnapiGetDefaultContext()
+
+
+const __sharedMemory = new WebAssembly.Memory({
+  initial: 4000,
+  maximum: 65536,
+  shared: true,
+})
+
+const __wasmFile = await fetch(__wasmUrl).then((res) => res.arrayBuffer())
+
+export let MainWorker = null;
+
+function panic(name) {
+  throw new Error(`method ${name} must be invoked only from the main thread`);
+}
+
+const {
+  instance: __napiInstance,
+  module: __wasiModule,
+  napiModule: __napiModule,
+} = await __emnapiInstantiateNapiModule(__wasmFile, {
+  context: __emnapiContext,
+  asyncWorkPoolSize: 1,
+  wasi: __wasi,
+  onCreateWorker() {
+    const worker = new Worker(new URL('./worker.mjs', import.meta.url), {
+      type: 'module',
+    })
+    MainWorker = worker;
+    return worker
+  },
+  overwriteImports(importObject) {
+    importObject.env = {
+      ...importObject.env,
+      ...importObject.napi,
+      ...importObject.emnapi,
+      memory: __sharedMemory,
+      is_web_worker: () => false,
+      lookup_file: () => panic("lookup_file"),
+      read: () => panic("read"),
+      write: () => panic("write"),
+      sync: () => panic("sync"),
+      truncate: () => panic("truncate"),
+      size: () => panic("size"),
+    }
+    return importObject
+  },
+  beforeInit({ instance }) {
+    for (const name of Object.keys(instance.exports)) {
+      if (name.startsWith('__napi_register__')) {
+        instance.exports[name]()
+      }
+    }
+  },
+})
+export default __napiModule.exports
+export const Database = __napiModule.exports.Database
+export const Opfs = __napiModule.exports.Opfs
+export const OpfsFile = __napiModule.exports.OpfsFile
+export const Statement = __napiModule.exports.Statement
+export const connect = __napiModule.exports.connect
+export const initThreadPool = __napiModule.exports.initThreadPool