Adding a JSDoc @typedef declaration breaks emitting static getter to ".d.ts" files.

[kbkk]

TypeScript Version: 3.9.0-dev.20200309

Search Terms: static get, static get cannot find name

Code

'use strict';

class Handler {
	static get OPTIONS() {
		return 1;
	}

	process() {
	}
}

module.exports = Handler;

/**
 * @typedef {Object} HandlerOptions
 * @property {String} name
 */

Expected behavior:

export = Handler;
declare class Handler {
    static get OPTIONS(): number;
    process(): void;
}
declare namespace Handler {
    export { OPTIONS, HandlerOptions };
}
type HandlerOptions = {
    name: string;
};

Actual behavior:

// Missing `static get OPTIONS` declaration
// And an error is emitted: `TS2304: Cannot find name 'OPTIONS'.`
export = Handler;
declare class Handler {
    process(): void;
}
declare namespace Handler {
    export { OPTIONS, HandlerOptions };
}
type HandlerOptions = {
    name: string;
};

Playground Link: Provided

[kbkk]

Same problem with @callback JSdocs:

.js:

/**
 * @callback TransactionCallback
 * @param {Transaction}
 */

generated .d.ts:

// TS2693: 'any' only refers to a type, but is being used as a value here.
type TransactionCallback = (: any) => any;

[sandersn]

The predicate the symbol serialiser uses to distinguish static properties from expando namespace properties is not precise enough. The fix is to make sure that properties defined inside a class are serialised there instead of in the merged namespace.