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Cherry-pick PR #38525 into release-3.9 (#38582)

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Component commits:
19624faea7 Fix build type error

Co-authored-by: kingwl <kingwenlu@gmail.com>
This commit is contained in:
TypeScript Bot
2020-05-14 14:58:52 -07:00
committed by GitHub
parent 3d5f66b872
commit e354d4785d
1 changed files with 3 additions and 3 deletions
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6
src/harness/vfsUtil.ts
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@@ -649,14 +649,14 @@ namespace vfs {
*
* NOTE: do not rename this method as it is intended to align with the same named export of the "fs" module.
*/
public readFileSync(path: string, encoding: string): string;
public readFileSync(path: string, encoding: BufferEncoding): string;
/**
* Read from a file.
*
* NOTE: do not rename this method as it is intended to align with the same named export of the "fs" module.
*/
public readFileSync(path: string, encoding?: string | null): string | Buffer;
public readFileSync(path: string, encoding: string | null = null) { // eslint-disable-line no-null/no-null
public readFileSync(path: string, encoding?: BufferEncoding | null): string | Buffer;
public readFileSync(path: string, encoding: BufferEncoding | null = null) { // eslint-disable-line no-null/no-null
const { node } = this._walk(this._resolve(path));
if (!node) throw createIOError("ENOENT");
if (isDirectory(node)) throw createIOError("EISDIR");