fix(kit): don't rely on ModuleThis (#272)

packages/kit/src/module/container.ts

@@ -1,7 +1,4 @@
-import { nuxtCtx } from '../nuxt'
 import type { Nuxt } from '../types/nuxt'
-import type { NuxtOptions } from '../types/config'
-import type { TemplateOpts, PluginTemplateOpts } from '../types/module'
 import {
   addTemplate,
   addErrorLayout,
@@ -14,19 +11,10 @@ import {
 import { installModule } from './install'
 
 /** Legacy ModuleContainer for backwards compatibility with existing Nuxt 2 modules. */
-export class ModuleContainer {
+export function createModuleContainer (nuxt: Nuxt) {
-  nuxt: Nuxt
+  return {
-  options: NuxtOptions
+    nuxt,
-
+    options: nuxt.options,
-  constructor (nuxt: Nuxt) {
-    this.nuxt = nuxt
-    this.options = nuxt.options
-  }
-
-  private _call<F extends (...args: any) => any>(fn: F, ...args: Parameters<F>): ReturnType<F> {
-    // @ts-ignore
-    return nuxtCtx.call(this.nuxt, () => fn(...args))
-  }
 
     /**
      * Returns a resolved promise immediately.
@@ -35,12 +23,12 @@ export class ModuleContainer {
      */
     ready () {
       return Promise.resolve()
-  }
+    },
 
     /** @deprecated */
     addVendor () {
       console.warn('addVendor has been deprecated and has no effect.')
-  }
+    },
 
     /**
      * Renders given template using lodash template during build into the project buildDir (`.nuxt`).
@@ -48,9 +36,7 @@ export class ModuleContainer {
      * If a fileName is not provided or the template is string, target file name defaults to
      * [dirName].[fileName].[pathHash].[ext].
      */
-  addTemplate (tmpl: TemplateOpts | string) {
+    addTemplate,
-    return this._call(addTemplate, tmpl)
-  }
 
     /**
      * Registers a plugin using `addTemplate` and prepends it to the plugins[] array.
@@ -70,46 +56,33 @@ export class ModuleContainer {
      * })
      * ```
      */
-  addPlugin (tmpl: PluginTemplateOpts) {
+    addPlugin,
-    return this._call(addPlugin, tmpl)
-  }
 
     /** Register a custom layout. If its name is 'error' it will override the default error layout. */
-  addLayout (tmpl: TemplateOpts, name: string) {
+    addLayout,
-    return this._call(addLayout, tmpl, name)
-  }
 
     /**
      * Set the layout that will render Nuxt errors. It should already have been added via addLayout or addTemplate.
      *
      * @param dst - Path to layout file within the buildDir (`.nuxt/<dst>.vue`)
      */
-  addErrorLayout (dst: string) {
+    addErrorLayout,
-    return this._call(addErrorLayout, dst)
-  }
 
     /** Adds a new server middleware to the end of the server middleware array. */
-  addServerMiddleware (middleware) {
+    addServerMiddleware,
-    return this._call(addServerMiddleware, middleware)
-  }
 
     /** Allows extending webpack build config by chaining `options.build.extend` function. */
-  extendBuild (fn) {
+    extendBuild,
-    return this._call(extendBuild, fn)
-  }
 
     /** Allows extending routes by chaining `options.build.extendRoutes` function. */
-  extendRoutes (fn) {
+    extendRoutes,
-    return this._call(extendRoutes, fn)
-  }
 
     /** `requireModule` is a shortcut for `addModule` */
-  requireModule (moduleOpts: string | [src: string, options: any]) {
+    requireModule: installModule,
-    return installModule(this.nuxt, moduleOpts)
-  }
 
     /** Registers a module. moduleOpts can be a string or an array ([src, options]). */
-  addModule (moduleOpts: string | [src: string, options: any]) {
+    addModule: installModule
-    return installModule(this.nuxt, moduleOpts)
   }
 }
+
+export type ModuleContainer = ReturnType<typeof createModuleContainer>

packages/kit/src/module/install.ts

@@ -3,7 +3,7 @@ import { resolveAlias } from '../utils/resolve'
 import type { LegacyNuxtModule, NuxtModule, ModuleMeta, ModuleInstallOptions, ModuleOptions, ModuleSrc } from '../types/module'
 import type { Nuxt } from '../types/nuxt'
 import { defineNuxtModule } from './define'
-import { ModuleContainer } from './container'
+import { createModuleContainer } from './container'
 
 /** Installs a module on a Nuxt instance. */
 export async function installModule (nuxt: Nuxt, installOpts: ModuleInstallOptions) {
@@ -57,6 +57,6 @@ export async function installModule (nuxt: Nuxt, installOpts: ModuleInstallOptio
   }
 
   // Execute in legacy container
-  const container = new ModuleContainer(nuxt)
+  const container = createModuleContainer(nuxt)
   await handler.call(container, options)
 }