wip(ssr): escape helpers

packages/runtime-core/src/helpers/toString.ts

@@ -1,10 +0,0 @@
-import { isArray, isPlainObject, objectToString } from '@vue/shared'
-
-// for converting {{ interpolation }} values to displayed strings.
-export function toString(val: unknown): string {
-  return val == null
-    ? ''
-    : isArray(val) || (isPlainObject(val) && val.toString === objectToString)
-      ? JSON.stringify(val, null, 2)
-      : String(val)
-}

packages/runtime-core/src/index.ts

@@ -81,7 +81,6 @@ export {
   resolveDynamicComponent
 } from './helpers/resolveAssets'
 export { renderList } from './helpers/renderList'
-export { toString } from './helpers/toString'
 export { toHandlers } from './helpers/toHandlers'
 export { renderSlot } from './helpers/renderSlot'
 export { createSlots } from './helpers/createSlots'
@@ -90,7 +89,12 @@ export { setBlockTracking, createTextVNode, createCommentVNode } from './vnode'
 // Since @vue/shared is inlined into final builds,
 // when re-exporting from @vue/shared we need to avoid relying on their original
 // types so that the bundled d.ts does not attempt to import from it.
-import { capitalize as _capitalize, camelize as _camelize } from '@vue/shared'
+import {
+  toDisplayString as _toDisplayString,
+  capitalize as _capitalize,
+  camelize as _camelize
+} from '@vue/shared'
+export const toDisplayString = _toDisplayString as (s: unknown) => string
 export const capitalize = _capitalize as (s: string) => string
 export const camelize = _camelize as (s: string) => string