perf: remove unnecessary hash cache

related: 0ee9d28#r159191471

Author: 9romise

src/index.ts

@@ -4,9 +4,10 @@ import { isBuiltin } from 'node:module'
 import { dirname } from 'node:path'
 import { isNil, pickBy } from 'es-toolkit'
 import { ResolverFactory } from 'oxc-resolver'
+import { stableHash } from 'stable-hash-x'
 import { getBundlerConfig } from './bundler'
 import { normalizeOptions } from './normalizeOptions'
-import { hashObject, removeQuerystring } from './utils'
+import { removeQuerystring } from './utils'
 
 export * from './bundler/exports'
 export * from './typings'
@@ -20,7 +21,7 @@ export function resolve(source: string, file: string, options?: OxcResolverOptio
 
   if (resolver == null) {
     options ??= {}
-    const optionsHash = hashObject(options)
+    const optionsHash = stableHash(options)
 
     if (!cachedResolver || cachedOptionsHash !== optionsHash) {
       options = normalizeOptions(options)

src/utils.ts

@@ -1,22 +1,8 @@
-import type { NapiResolveOptions } from 'oxc-resolver'
 import { existsSync } from 'node:fs'
 import { resolve } from 'node:path'
 import { cwd } from 'node:process'
 import { pathToFileURL } from 'node:url'
 import { cloneDeep, isPlainObject, mergeWith } from 'es-toolkit'
-import { stableHash } from 'stable-hash-x'
-
-export const hashCache: WeakMap<NapiResolveOptions, string> = new WeakMap<NapiResolveOptions, string>()
-
-export function hashObject(obj: NapiResolveOptions): string {
-  if (hashCache.has(obj)) {
-    return hashCache.get(obj)!
-  }
-
-  const hash = stableHash(obj)
-  hashCache.set(obj, hash)
-  return hash
-}
 
 export function detectFile(files: string[]): string | undefined {
   for (const file of files) {