refactor: use doc.version instead of text hash for parse cache key

Author: 9romise

src/utils/parse.ts

@@ -1,17 +1,12 @@
 import type { ValidNode } from '#types/extractor'
 import type { TextDocument } from 'vscode'
-import { createHash } from 'node:crypto'
 import { memoize } from './memoize'
 
-function computeHash(text: string) {
-  return createHash('sha1').update(text).digest('hex')
-}
-
 export function createCachedParse<T extends ValidNode>(
   parse: (text: string) => T | null,
 ) {
   return memoize(
     (doc: TextDocument) => parse(doc.getText()),
-    { getKey: (doc) => `${doc.uri}:${computeHash(doc.getText())}` },
+    { getKey: (doc) => `${doc.uri}:${doc.version}` },
   )
 }