// @ts-check — JSDoc-typed plugin helpers shared between custom-theme.mjs and extract-methods.mjs.

/**

* Strip one (or, with `{ deep: true }`, all) `OptionalType` layers and return the inner type. Returns `t` unchanged when it isn't an `OptionalType`, or when `t` is nullish.

*

* Typed loosely (`Type` ⊕ `SomeType`) so callers in either type domain can use the same helper; the runtime check is structural (`type === 'optional' && 'elementType' in t`).

*

* @template {import('typedoc').Type | import('typedoc').SomeType | undefined} T

* @param {T} t

* @param {{ deep?: boolean }} [options]

* @returns {T}

*/

export function unwrapOptional(t, options) {

let cur = t;

while (

cur &&

typeof cur === 'object' &&

/** @type {{ type?: string }} */ (cur).type === 'optional' &&

'elementType' in cur

) {

cur = /** @type {T} */ (/** @type {{ elementType: import('typedoc').Type }} */ (cur).elementType);

if (!options?.deep) {

break;

}

}

return cur;

}