Function findContainingClass

packages/compiler-cli/test/ngtsc/scope_spec.ts:699–708

(node: ts.Node)

});

function findContainingClass(node: ts.Node): ts.ClassDeclaration {
  while (!ts.isClassDeclaration(node)) {
    if (node.parent && node.parent !== node) {
      node = node.parent;
    } else {
      throw new Error('Expected node to have a ClassDeclaration parent');
    }
  }
  return node;
}