Check Svelte version as well

Author: benmccann

.changeset/chilled-tigers-flash.md

@@ -2,4 +2,4 @@
 '@sveltejs/vite-plugin-svelte': patch
 ---
 
-Skip Vite resolve workaround on Vite 4.1+
+Skip Vite resolve workaround on Vite 4.1+ or Svelte 4+

packages/vite-plugin-svelte/src/index.ts

@@ -1,5 +1,13 @@
 import fs from 'fs';
-import { HmrContext, ModuleNode, Plugin, ResolvedConfig, UserConfig, version as viteVersion } from 'vite';
+import { VERSION as svelteVersion } from 'svelte/compiler';
+import {
+	HmrContext,
+	ModuleNode,
+	Plugin,
+	ResolvedConfig,
+	UserConfig,
+	version as viteVersion
+} from 'vite';
 // eslint-disable-next-line node/no-missing-import
 import { isDepExcluded } from 'vitefu';
 import { handleHotUpdate } from './handle-hot-update';
@@ -135,8 +143,13 @@ export function svelte(inlineOptions?: Partial<Options>): Plugin[] {
 					}
 				}
 
-				// TODO: remove this after bumping peerDep on Vite to at least 4.1
-				if (viteVersion.startsWith('4.0') && ssr && importee === 'svelte') {
+				// TODO: remove this after bumping peerDep on Vite to 4.1+ or Svelte to 4.0+
+				if (
+					viteVersion.startsWith('4.0') &&
+					!svelteVersion.startsWith('3') &&
+					ssr &&
+					importee === 'svelte'
+				) {
 					if (!resolvedSvelteSSR) {
 						resolvedSvelteSSR = this.resolve('svelte/ssr', undefined, { skipSelf: true }).then(
 							(svelteSSR) => {

packages/vite-plugin-svelte/src/utils/svelte-version.ts

@@ -1,5 +1,5 @@
 import { VERSION } from 'svelte/compiler';
-const svelteVersion = parseVersion(VERSION);
+export const svelteVersion = parseVersion(VERSION);
 
 export function parseVersion(version: string): number[] {
 	const segments = version.split('.', 3).map((s) => parseInt(s, 10));