chore: prefer type imports (#5835)

.eslintrc.cjs

@@ -89,7 +89,11 @@ module.exports = defineConfig({
     '@typescript-eslint/no-inferrable-types': 'off',
     '@typescript-eslint/no-non-null-assertion': 'off', // maybe we should turn this on in a new PR
     '@typescript-eslint/no-unused-vars': 'off', // maybe we should turn this on in a new PR
-    '@typescript-eslint/no-var-requires': 'off'
+    '@typescript-eslint/no-var-requires': 'off',
+    '@typescript-eslint/consistent-type-imports': [
+      'error',
+      { prefer: 'type-imports' }
+    ]
   },
   overrides: [
     {

packages/plugin-vue-jsx/index.d.ts

@@ -1,6 +1,6 @@
-import { Plugin } from 'vite'
-import { VueJSXPluginOptions } from '@vue/babel-plugin-jsx'
-import { FilterPattern } from '@rollup/pluginutils'
+import type { Plugin } from 'vite'
+import type { VueJSXPluginOptions } from '@vue/babel-plugin-jsx'
+import type { FilterPattern } from '@rollup/pluginutils'
 
 declare interface FilterOptions {
   include?: FilterPattern

packages/plugin-vue/src/compiler.ts

@@ -5,7 +5,7 @@ declare module 'vue/compiler-sfc' {
   }
 }
 
-import * as _compiler from 'vue/compiler-sfc'
+import type * as _compiler from 'vue/compiler-sfc'
 
 export function resolveCompiler(root: string): typeof _compiler {
   // resolve from project root first, then fallback to peer dep (if any)

packages/plugin-vue/src/handleHotUpdate.ts

@@ -1,13 +1,13 @@
 import _debug from 'debug'
-import { SFCBlock, SFCDescriptor } from 'vue/compiler-sfc'
+import type { SFCBlock, SFCDescriptor } from 'vue/compiler-sfc'
 import {
   createDescriptor,
   getDescriptor,
   setPrevDescriptor
 } from './utils/descriptorCache'
 import { getResolvedScript, setResolvedScript } from './script'
-import { ModuleNode, HmrContext } from 'vite'
-import { ResolvedOptions } from '.'
+import type { ModuleNode, HmrContext } from 'vite'
+import type { ResolvedOptions } from '.'
 
 const debug = _debug('vite:hmr')
 

packages/plugin-vue/src/index.ts

@@ -1,13 +1,13 @@
 import fs from 'fs'
-import { Plugin, ViteDevServer } from 'vite'
+import type { Plugin, ViteDevServer } from 'vite'
 import { createFilter } from '@rollup/pluginutils'
-import {
+import type {
   SFCBlock,
   SFCScriptCompileOptions,
   SFCStyleCompileOptions,
   SFCTemplateCompileOptions
 } from 'vue/compiler-sfc'
-import * as _compiler from 'vue/compiler-sfc'
+import type * as _compiler from 'vue/compiler-sfc'
 import { resolveCompiler } from './compiler'
 import { parseVueRequest } from './utils/query'
 import { getDescriptor, getSrcDescriptor } from './utils/descriptorCache'

packages/plugin-vue/src/main.ts

@@ -1,18 +1,19 @@
 import qs from 'querystring'
 import path from 'path'
-import { SFCBlock, SFCDescriptor } from 'vue/compiler-sfc'
-import { ResolvedOptions } from '.'
+import type { SFCBlock, SFCDescriptor } from 'vue/compiler-sfc'
+import type { ResolvedOptions } from '.'
 import {
   createDescriptor,
   getPrevDescriptor,
   setSrcDescriptor
 } from './utils/descriptorCache'
-import { PluginContext, SourceMap, TransformPluginContext } from 'rollup'
+import type { PluginContext, SourceMap, TransformPluginContext } from 'rollup'
 import { normalizePath } from '@rollup/pluginutils'
 import { resolveScript, isUseInlineTemplate } from './script'
 import { transformTemplateInMain } from './template'
 import { isOnlyTemplateChanged, isEqualBlock } from './handleHotUpdate'
-import { RawSourceMap, SourceMapConsumer, SourceMapGenerator } from 'source-map'
+import type { RawSourceMap } from 'source-map'
+import { SourceMapConsumer, SourceMapGenerator } from 'source-map'
 import { createRollupError } from './utils/error'
 import { transformWithEsbuild } from 'vite'
 import { EXPORT_HELPER_ID } from './helper'

packages/plugin-vue/src/script.ts

@@ -1,5 +1,5 @@
-import { SFCDescriptor, SFCScriptBlock } from 'vue/compiler-sfc'
-import { ResolvedOptions } from '.'
+import type { SFCDescriptor, SFCScriptBlock } from 'vue/compiler-sfc'
+import type { ResolvedOptions } from '.'
 import { resolveTemplateCompilerOptions } from './template'
 
 // ssr and non ssr builds would output different script content

packages/plugin-vue/src/style.ts

@@ -1,6 +1,6 @@
-import { SFCDescriptor } from 'vue/compiler-sfc'
-import { TransformPluginContext } from 'rollup'
-import { ResolvedOptions } from '.'
+import type { SFCDescriptor } from 'vue/compiler-sfc'
+import type { TransformPluginContext } from 'rollup'
+import type { ResolvedOptions } from '.'
 
 // eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
 export async function transformStyle(

packages/plugin-vue/src/template.ts

@@ -1,13 +1,13 @@
 import path from 'path'
 import slash from 'slash'
-import {
+import type {
   SFCDescriptor,
   SFCTemplateCompileOptions,
   SFCTemplateCompileResults,
   CompilerOptions
 } from 'vue/compiler-sfc'
-import { PluginContext, TransformPluginContext } from 'rollup'
-import { ResolvedOptions } from '.'
+import type { PluginContext, TransformPluginContext } from 'rollup'
+import type { ResolvedOptions } from '.'
 import { getResolvedScript } from './script'
 import { createRollupError } from './utils/error'
 

packages/plugin-vue/src/utils/descriptorCache.ts

@@ -2,8 +2,8 @@ import fs from 'fs'
 import path from 'path'
 import slash from 'slash'
 import hash from 'hash-sum'
-import { CompilerError, SFCDescriptor } from 'vue/compiler-sfc'
-import { ResolvedOptions, VueQuery } from '..'
+import type { CompilerError, SFCDescriptor } from 'vue/compiler-sfc'
+import type { ResolvedOptions, VueQuery } from '..'
 
 // compiler-sfc should be exported so it can be re-used
 export interface SFCParseResult {

packages/plugin-vue/src/utils/error.ts

@@ -1,5 +1,5 @@
-import { CompilerError } from 'vue/compiler-sfc'
-import { RollupError } from 'rollup'
+import type { CompilerError } from 'vue/compiler-sfc'
+import type { RollupError } from 'rollup'
 
 export function createRollupError(
   id: string,

scripts/jestPerTestSetup.ts

@@ -2,18 +2,17 @@ import fs from 'fs-extra'
 import * as http from 'http'
 import { resolve, dirname } from 'path'
 import sirv from 'sirv'
-import {
-  createServer,
-  build,
+import type {
   ViteDevServer,
   UserConfig,
   PluginOption,
   ResolvedConfig,
   Logger
 } from 'vite'
-import { Page } from 'playwright-chromium'
+import { createServer, build } from 'vite'
+import type { Page } from 'playwright-chromium'
 // eslint-disable-next-line node/no-extraneous-import
-import { RollupError, RollupWatcher, RollupWatcherEvent } from 'rollup'
+import type { RollupError, RollupWatcher, RollupWatcherEvent } from 'rollup'
 
 const isBuildTest = !!process.env.VITE_TEST_BUILD