Function assertIsArray

packages/compiler/src/template/pipeline/src/ingest.ts:1813–1817

* Assert that the given value is an array.

(value: any)

 * Assert that the given value is an array.
 */
function assertIsArray<T>(value: any): asserts value is Array<T> {
  if (!Array.isArray(value)) {
    throw new Error(`AssertionError: expected an array`);
  }
}

/**
 * Creates an absolute `ParseSourceSpan` from the relative `ParseSpan`.