style: prefer import type

packages/compiler-core/src/ast.ts

@@ -1,17 +1,17 @@
 import { isString } from '@vue/shared'
 import { ForParseResult } from './transforms/vFor'
 import {
-  RENDER_SLOT,
-  CREATE_SLOTS,
-  RENDER_LIST,
-  OPEN_BLOCK,
-  FRAGMENT,
-  WITH_DIRECTIVES,
-  WITH_MEMO,
+  type RENDER_SLOT,
+  type CREATE_SLOTS,
+  type RENDER_LIST,
+  type FRAGMENT,
+  type WITH_MEMO,
   CREATE_VNODE,
   CREATE_ELEMENT_VNODE,
   CREATE_BLOCK,
-  CREATE_ELEMENT_BLOCK
+  CREATE_ELEMENT_BLOCK,
+  WITH_DIRECTIVES,
+  OPEN_BLOCK
 } from './runtimeHelpers'
 import { PropsExpression } from './transforms/transformElement'
 import { ImportItem, TransformContext } from './transform'

packages/compiler-core/src/options.ts

@@ -1,13 +1,18 @@
-import { ElementNode, Namespace, TemplateChildNode, ParentNode } from './ast'
-import { TextModes } from './parse'
-import { CompilerError } from './errors'
-import {
+import type {
+  ElementNode,
+  Namespace,
+  TemplateChildNode,
+  ParentNode
+} from './ast'
+import type { TextModes } from './parse'
+import type { CompilerError } from './errors'
+import type {
   NodeTransform,
   DirectiveTransform,
   TransformContext
 } from './transform'
-import { CompilerCompatOptions } from './compat/compatConfig'
-import { ParserPlugin } from '@babel/parser'
+import type { CompilerCompatOptions } from './compat/compatConfig'
+import type { ParserPlugin } from '@babel/parser'
 
 export interface ErrorHandlingOptions {
   onWarn?: (warning: CompilerError) => void

packages/runtime-core/src/h.ts

@@ -1,25 +1,25 @@
 import {
-  VNode,
-  VNodeProps,
+  type Text,
+  type Comment,
+  type VNode,
+  type VNodeProps,
+  type VNodeArrayChildren,
+  type Fragment,
   createVNode,
-  VNodeArrayChildren,
-  Fragment,
-  Text,
-  Comment,
   isVNode
 } from './vnode'
-import { Teleport, TeleportProps } from './components/Teleport'
-import { Suspense, SuspenseProps } from './components/Suspense'
+import type { Teleport, TeleportProps } from './components/Teleport'
+import type { Suspense, SuspenseProps } from './components/Suspense'
 import { isObject, isArray } from '@vue/shared'
-import { RawSlots } from './componentSlots'
-import {
+import type { RawSlots } from './componentSlots'
+import type {
   FunctionalComponent,
   Component,
   ComponentOptions,
   ConcreteComponent
 } from './component'
-import { EmitsOptions } from './componentEmits'
-import { DefineComponent } from './apiDefineComponent'
+import type { EmitsOptions } from './componentEmits'
+import type { DefineComponent } from './apiDefineComponent'
 
 // `h` is a more user-friendly version of `createVNode` that allows omitting the
 // props when possible. It is intended for manually written render functions.