feat(wasm): migrate to unjs/unwasm (#2037)

package.json

@@ -120,7 +120,8 @@
     "unctx": "^2.3.1",
     "unenv": "^1.8.0",
     "unimport": "^3.7.0",
-    "unstorage": "^1.10.1"
+    "unstorage": "^1.10.1",
+    "unwasm": "^0.3.2"
   },
   "devDependencies": {
     "@azure/functions": "^3.5.1",

src/presets/vercel.ts

@@ -105,7 +105,7 @@ export const vercelEdge = defineNitroPreset({
   },
   wasm: {
     lazy: true,
-    esmImport: true,
+    esmImport: false,
   },
   hooks: {
     "rollup:before": (nitro: Nitro) => {

src/rollup/config.ts

@@ -1,12 +1,7 @@
 import { pathToFileURL } from "node:url";
 import { createRequire, builtinModules } from "node:module";
-import { dirname, join, normalize, relative, resolve } from "pathe";
-import type {
-  InputOptions,
-  OutputOptions,
-  Plugin,
-  PreRenderedChunk,
-} from "rollup";
+import { join, normalize, resolve } from "pathe";
+import type { InputOptions, OutputOptions, Plugin } from "rollup";
 import { defu } from "defu";
 // import terser from "@rollup/plugin-terser"; // TODO: Investigate jiti issue
 import commonjs from "@rollup/plugin-commonjs";
@@ -18,17 +13,17 @@ import { isWindows } from "std-env";
 import { visualizer } from "rollup-plugin-visualizer";
 import * as unenv from "unenv";
 import type { Preset } from "unenv";
-import { sanitizeFilePath, resolvePath, parseNodeModulePath } from "mlly";
+import { sanitizeFilePath, resolvePath } from "mlly";
 import unimportPlugin from "unimport/unplugin";
 import { hash } from "ohash";
+import { rollup as unwasm } from "unwasm/plugin";
 import type { Nitro, NitroStaticBuildFlags } from "../types";
 import { resolveAliases } from "../utils";
 import { runtimeDir } from "../dirs";
 import nitroPkg from "../../package.json";
 import { nitroRuntimeDependencies } from "../deps";
 import { replace } from "./plugins/replace";
 import { virtual } from "./plugins/virtual";
-import { wasm } from "./plugins/wasm";
 import { dynamicRequire } from "./plugins/dynamic-require";
 import { NodeExternalsOptions, externals } from "./plugins/externals";
 import { externals as legacyExternals } from "./plugins/externals-legacy";
@@ -174,7 +169,7 @@ export const getRollupConfig = (nitro: Nitro): RollupConfig => {
 
   // WASM support
   if (nitro.options.experimental.wasm) {
-    rollupConfig.plugins.push(wasm(nitro.options.wasm || {}));
+    rollupConfig.plugins.push(unwasm(nitro.options.wasm || {}));
   }
 
   // Build-time environment variables

src/types/nitro.ts

@@ -11,6 +11,7 @@ import type { Storage, BuiltinDriverName } from "unstorage";
 import type { ProxyServerOptions } from "httpxy";
 import type { ProxyOptions, RouterMethod } from "h3";
 import type { ResolvedConfig, ConfigWatcher } from "c12";
+import type { UnwasmPluginOptions } from "unwasm/plugin";
 import type { TSConfig } from "pkg-types";
 import type { NodeExternalsOptions } from "../rollup/plugins/externals";
 import type { RollupConfig } from "../rollup/config";
@@ -188,23 +189,6 @@ export interface NitroRouteRules
   proxy?: { to: string } & ProxyOptions;
 }
 
-export interface WasmOptions {
-  /**
-   * Direct import the wasm file instead of bundling, required in Cloudflare Workers
-   *
-   * @default false
-   */
-  esmImport?: boolean;
-
-  /**
-   * Import `.wasm` files using a lazily evaluated promise for compatibility
-   */
-  lazy?: boolean;
-
-  /** @deprecated */
-  rollup?: unknown;
-}
-
 export interface NitroFrameworkInfo {
   // eslint-disable-next-line @typescript-eslint/ban-types
   name?: "nitro" | (string & {});
@@ -265,8 +249,12 @@ export interface NitroOptions extends PresetOptions {
   renderer?: string;
   serveStatic: boolean | "node" | "deno" | "inline";
   noPublicDir: boolean;
-  /** @experimental Requires `experimental.wasm` to be effective */
-  wasm?: WasmOptions;
+  /**
+   * @experimental Requires `experimental.wasm` to work
+   *
+   * @see https://github.com/unjs/unwasm
+   */
+  wasm?: UnwasmPluginOptions;
   experimental?: {
     legacyExternals?: boolean;
     openAPI?: boolean;
@@ -280,6 +268,8 @@ export interface NitroOptions extends PresetOptions {
     asyncContext?: boolean;
     /**
      * Enable Experimental WebAssembly Support
+     *
+     * @see https://github.com/unjs/unwasm
      */
     wasm?: boolean;
     /**