@thi.ng/parse/xform/hoist.js

Purely functional parser combinators & AST generation for generic inputs

import { xform } from "../combinators/xform.js";
const xfHoist = (scope) => {
  Object.assign(scope, scope.children[0]);
  return scope;
};
const xfHoistResult = (scope) => {
  scope.result = scope.children[0].result;
  scope.children = null;
  return scope;
};
const hoist = (parser) => xform(parser, xfHoist);
const hoistResult = (parser) => xform(parser, xfHoistResult);
export {
  hoist,
  hoistResult,
  xfHoist,
  xfHoistResult
};