refactor: use stringified deserializeFunctions util (#2733)

Author: brc-dd

Diff for: src/node/build/build.ts

@@ -176,7 +176,7 @@ function generateMetadataScript(
 
   const metadataContent = `window.__VP_HASH_MAP__=JSON.parse(${hashMapString});${
     siteDataString.includes('_vp-fn_')
-      ? `${deserializeFunctions.toString()};window.__VP_SITE_DATA__=deserializeFunctions(JSON.parse(${siteDataString}));`
+      ? `${deserializeFunctions};window.__VP_SITE_DATA__=deserializeFunctions(JSON.parse(${siteDataString}));`
       : `window.__VP_SITE_DATA__=JSON.parse(${siteDataString});`
   }`
 

Diff for: src/node/plugin.ts

@@ -172,8 +172,7 @@ export async function createVitePressPlugin(
           }
         }
         data = serializeFunctions(data)
-        return `${deserializeFunctions.toString()}
-        export default deserializeFunctions(JSON.parse(${JSON.stringify(
+        return `${deserializeFunctions};export default deserializeFunctions(JSON.parse(${JSON.stringify(
           JSON.stringify(data)
         )}))`
       }

Diff for: src/node/utils/fnSerialize.ts

@@ -20,6 +20,7 @@ export function serializeFunctions(value: any, key?: string): any {
   }
 }
 
+/*
 export function deserializeFunctions(value: any): any {
   if (Array.isArray(value)) {
     return value.map(deserializeFunctions)
@@ -34,3 +35,7 @@ export function deserializeFunctions(value: any): any {
     return value
   }
 }
+*/
+
+export const deserializeFunctions =
+  'function deserializeFunctions(r){return Array.isArray(r)?r.map(deserializeFunctions):typeof r=="object"&&r!==null?Object.keys(r).reduce((t,n)=>(t[n]=deserializeFunctions(r[n]),t),{}):typeof r=="string"&&r.startsWith("_vp-fn_")?new Function(`return ${r.slice(7)}`)():r}'