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@@ -225,6 +225,25 @@ export function realpathSync(path: PathArg): string {
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return vfs().realpathSync(asPath(path))
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}
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+/**
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+ * Resolve a UTF-8 path through Node's callback form and its native alias.
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+ * @param path - Path in the symlink-free VFS.
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+ * @param callback - Asynchronous completion with the canonical path or filesystem error.
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+ */
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+export function realpath(path: PathArg, callback: (error: NodeJS.ErrnoException | null, path?: string) => void): void {
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+ queueMicrotask(() => {
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+ let result: string
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+ try {
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+ result = realpathSync(path)
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+ } catch (error) {
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+ callback(error as NodeJS.ErrnoException)
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+ return
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+ }
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+ callback(null, result)
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+ })
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+}
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+realpath.native = realpath
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+
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/**
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* List a directory.
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* @param path - directory path.
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@@ -828,13 +847,13 @@ export const __esModule = true
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* (`readFileSync` answering `Buffer` XOR `string`, `statSync` answering `Stats`
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* XOR `BigIntStats`, `mkdirSync` answering `string` XOR `void`). This module
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* answers the union its VFS actually produces from one signature, which no single
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- * signature can present as all of Node's overloads; `realpathSync` additionally
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+ * signature can present as all of Node's overloads; `realpath` additionally
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* carries Node's `.native` member, and `constants`, `promises`, and `Dirent` hold
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* the subsets the host tree reads.
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*/
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type OwnSignature =
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| 'constants' | 'promises' | 'Dirent' | 'FSWatcher' | 'StatWatcher' | 'ReadStream' | 'WriteStream'
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- | 'readFileSync' | 'writeFileSync' | 'appendFileSync' | 'statSync' | 'lstatSync' | 'realpathSync'
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+ | 'readFileSync' | 'writeFileSync' | 'appendFileSync' | 'statSync' | 'lstatSync' | 'realpathSync' | 'realpath'
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| 'readdirSync' | 'mkdirSync' | 'mkdtempSync' | 'rmSync' | 'opendirSync'
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| 'openSync' | 'readSync' | 'writeSync' | 'stat' | 'lstat' | 'watch' | 'watchFile' | 'unwatchFile'
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| 'createReadStream' | 'createWriteStream'
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@@ -850,7 +869,7 @@ type NodeFace = Partial<Omit<typeof import('node:fs'), OwnSignature>>
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/** CommonJS default export: the members `require()` hands a caller of this module. */
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export default {
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constants, promises, Dirent, FSWatcher, StatWatcher, ReadStream, WriteStream,
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- readFileSync, writeFileSync, appendFileSync, existsSync, statSync, stat, lstatSync, lstat, realpathSync, chmodSync,
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+ readFileSync, writeFileSync, appendFileSync, existsSync, statSync, stat, lstatSync, lstat, realpathSync, realpath, chmodSync,
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readdirSync, mkdirSync, mkdtempSync, rmSync, unlinkSync, renameSync, accessSync, opendirSync,
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openHandleSync, linkSync,
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openSync, readSync, writeSync, closeSync, watch, watchFile, unwatchFile,
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Tianyi Cui