From b4f4b1fd9185594e1edbed3ab02bcf607edc41f6 Mon Sep 17 00:00:00 2001
From: Patrick Pircher <patricklx@users.noreply.github.com>
Date: Tue, 10 Oct 2023 10:56:33 +0200
Subject: [PATCH] bind plugin context functions

---
 .../server/__tests__/pluginContainer.spec.ts  | 26 +++++++++++++++++++
 .../vite/src/node/server/pluginContainer.ts   |  8 ++++++
 2 files changed, 34 insertions(+)

diff --git a/packages/vite/src/node/server/__tests__/pluginContainer.spec.ts b/packages/vite/src/node/server/__tests__/pluginContainer.spec.ts
index a20fc919f7fa10..038c8ad5016a02 100644
--- a/packages/vite/src/node/server/__tests__/pluginContainer.spec.ts
+++ b/packages/vite/src/node/server/__tests__/pluginContainer.spec.ts
@@ -10,6 +10,32 @@ let resolveId: (id: string) => any
 let moduleGraph: ModuleGraph
 
 describe('plugin container', () => {
+  it('has bound methods', async () => {
+    expect.assertions(8)
+    const entryUrl = '/x.js'
+
+    const plugin: Plugin = {
+      name: 'p1',
+      load(id) {
+        // bound functions and bound arrow functions do not have prototype
+        expect(this.load.prototpe).equals(undefined)
+        expect(this.parse.prototpe).equals(undefined)
+        expect(this.resolve.prototpe).equals(undefined)
+        expect(this.addWatchFile.prototpe).equals(undefined)
+        expect(this.setAssetSource.prototpe).equals(undefined)
+        expect(this.getFileName.prototpe).equals(undefined)
+        expect(this.warn.prototpe).equals(undefined)
+        expect(this.error.prototpe).equals(undefined)
+      },
+    }
+
+    const container = await getPluginContainer({
+      plugins: [plugin],
+    })
+
+    await container.load(entryUrl)
+  })
+
   describe('getModuleInfo', () => {
     beforeEach(() => {
       moduleGraph = new ModuleGraph((id) => resolveId(id))
diff --git a/packages/vite/src/node/server/pluginContainer.ts b/packages/vite/src/node/server/pluginContainer.ts
index 76985d93b0cf5d..133f9b6f59609b 100644
--- a/packages/vite/src/node/server/pluginContainer.ts
+++ b/packages/vite/src/node/server/pluginContainer.ts
@@ -292,6 +292,14 @@ export async function createPluginContainer(
 
     constructor(initialPlugin?: Plugin) {
       this._activePlugin = initialPlugin || null
+      this.load = this.load.bind(this);
+      this.parse = this.parse.bind(this);
+      this.resolve = this.resolve.bind(this);
+      this.addWatchFile = this.addWatchFile.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);
     }
 
     parse(code: string, opts: any = {}) {