Function requireText

packages/core/src/system-context/index.ts:309–312

(key: Key, kind: string, text: string)

}

function requireText(key: Key, kind: string, text: string) {
  if (text.length === 0) throw new Error(`System context source ${key} rendered an empty ${kind}`)
  return text
}

function assertUniqueKeys(sources: ReadonlyArray<PackedSource>) {
  const keys = new Set<Key>()