perf: do not bind plugin hook context functions (#15610)

Author: patak-dev

packages/vite/src/node/server/__tests__/pluginContainer.spec.ts

@@ -10,38 +10,6 @@ let resolveId: (id: string) => any
 let moduleGraph: ModuleGraph
 
 describe('plugin container', () => {
-  it('has bound methods', async () => {
-    expect.assertions(14)
-    const entryUrl = '/x.js'
-
-    const plugin: Plugin = {
-      name: 'p1',
-      load(id) {
-        // bound functions and bound arrow functions do not have prototype
-        expect(this.parse.prototype).equals(undefined)
-        expect(this.resolve.prototype).equals(undefined)
-        expect(this.load.prototype).equals(undefined)
-        expect(this.getModuleInfo.prototype).equals(undefined)
-        expect(this.getModuleIds.prototype).equals(undefined)
-        expect(this.addWatchFile.prototype).equals(undefined)
-        expect(this.getWatchFiles.prototype).equals(undefined)
-        expect(this.emitFile.prototype).equals(undefined)
-        expect(this.setAssetSource.prototype).equals(undefined)
-        expect(this.getFileName.prototype).equals(undefined)
-        expect(this.warn.prototype).equals(undefined)
-        expect(this.error.prototype).equals(undefined)
-        expect(this.debug.prototype).equals(undefined)
-        expect(this.info.prototype).equals(undefined)
-      },
-    }
-
-    const container = await getPluginContainer({
-      plugins: [plugin],
-    })
-
-    await container.load(entryUrl)
-  })
-
   describe('getModuleInfo', () => {
     beforeEach(() => {
       moduleGraph = new ModuleGraph((id) => resolveId(id))

packages/vite/src/node/server/pluginContainer.ts

@@ -299,20 +299,6 @@ export async function createPluginContainer(
 
     constructor(initialPlugin?: Plugin) {
       this._activePlugin = initialPlugin || null
-      this.parse = this.parse.bind(this)
-      this.resolve = this.resolve.bind(this)
-      this.load = this.load.bind(this)
-      this.getModuleInfo = this.getModuleInfo.bind(this)
-      this.getModuleIds = this.getModuleIds.bind(this)
-      this.addWatchFile = this.addWatchFile.bind(this)
-      this.getWatchFiles = this.getWatchFiles.bind(this)
-      this.emitFile = this.emitFile.bind(this)
-      this.setAssetSource = this.setAssetSource.bind(this)
-      this.getFileName = this.getFileName.bind(this)
-      this.warn = this.warn.bind(this)
-      this.error = this.error.bind(this)
-      this.debug = this.debug.bind(this)
-      this.info = this.info.bind(this)
     }
 
     parse(code: string, opts: any) {