Multiple redundant tripleslash directives can be emitted

[Andarist]

🔎 Search Terms

tripleslash directive modules reference

🕗 Version & Regression Information

• This is the behavior in every version I tried

⏯ Playground Link

https://www.typescriptlang.org/play?target=99&moduleResolution=3&module=100&esModuleInterop=false#code/PTAEAEFsHsBMFcA2BTAXKAcnZBGAbALABQIEMCKASsgM7SLwAuAltAHbpay6EljjcAxogCGAJxEt26RmPjJixEGAA8Y5ADNk6toOShGATwAOtALwAiNtguhgAPkVFmkY9DGNQAbwCqlADIAvqAaYtCQoADk1tyo8GKIkQDcxC5uHt4AogBuyGyMmZDMjIzawaHhUTFoyLn5NMmpru6eXgBC8BpaYuVhEdHYqABGnd2NRMTIAB7pnoLsNJ6Lo+gA2n7+APwANKA5eQVFJdo7oB1dJwC6oGagq2zIAO6gGwAUkQAWJcY0qCCPAIAdEZTDRBGJmMZGKI2ABzQHuWHAYyiQyRACUlyAA

💻 Code

// @module: Node16
// @moduleResolution: Node16
// @declaration: true

/// <reference types="node" />

import {URL} from 'node:url';
import {EventEmitter} from 'node:events';
import {Buffer} from 'node:buffer';

export const stuff: [URL?, EventEmitter?, Buffer?] = [new URL('https://www.typescriptlang.org/play')]

🙁 Actual behavior

/// <reference types="node" resolution-mode="require"/>
/// <reference types="node" resolution-mode="require"/>
/// <reference types="node/url.js" />
/// <reference types="node/ts4.8/url.js" />
/// <reference types="node/events.js" />
/// <reference types="node/ts4.8/events.js" />
/// <reference types="node/buffer.js" />
/// <reference types="node/ts4.8/buffer.js" />
import { URL } from 'node:url';
import { EventEmitter } from 'node:events';
import { Buffer } from 'node:buffer';
export declare const stuff: [URL?, EventEmitter?, Buffer?];

🙂 Expected behavior

I'd expect only a single /// <reference types="node" resolution-mode="require"/> to be emitted.

Additional information about the issue

Note that types acquisition and switching between ESM/CJS modes is a little bit unreliable in the TS playground so you might have to "touch" the repro to "refresh" the DTS output