/* @internal */

namespace ts.refactor {

/**

* Returned by refactor functions when some error message needs to be surfaced to users.

*/

export interface RefactorErrorInfo {

error: string;

};

/**

* Checks if some refactor info has refactor error info.

*/

export function isRefactorErrorInfo(info: unknown): info is RefactorErrorInfo {

return (info as RefactorErrorInfo).error !== undefined;

}

/**

* Checks if string "known" begins with string "requested".

* Used to match requested kinds with a known kind.

*/

export function refactorKindBeginsWith(known: string, requested: string | undefined): boolean {

if(!requested) return true;

return known.substr(0, requested.length) === requested;

}

}