Function isSyntaxError

test/css-syntax-error.test.ts:16–18

(e: unknown)

} from '../lib/postcss.js'

function isSyntaxError(e: unknown): e is CssSyntaxError {
  return e instanceof Error && e.name === 'CssSyntaxError'
}

async function catchError(cb: () => Promise<any>): Promise<CssSyntaxError> {
  try {