Class Visitor

packages/compiler/test/expression_parser/ast_spec.ts:34–39

});

class Visitor extends RecursiveAstVisitor {
  override visit(node: AST, path: AST[]) {
    path.push(node);
    node.visit(this, path);
  }
}

type Newable = new (...args: any) => any;
function expectType<T extends Newable>(val: any, t: T): asserts val is InstanceType<T> {