ecma-search/dist/utils.js

Search ECMAScript Structurally

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.reducer = reducer;
exports.unique = unique;

function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

function _objectWithoutProperties(source, excluded) { if (source == null) return {}; var target = _objectWithoutPropertiesLoose(source, excluded); var key, i; if (Object.getOwnPropertySymbols) { var sourceSymbolKeys = Object.getOwnPropertySymbols(source); for (i = 0; i < sourceSymbolKeys.length; i++) { key = sourceSymbolKeys[i]; if (excluded.indexOf(key) >= 0) continue; if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue; target[key] = source[key]; } } return target; }

function _objectWithoutPropertiesLoose(source, excluded) { if (source == null) return {}; var target = {}; var sourceKeys = Object.keys(source); var key, i; for (i = 0; i < sourceKeys.length; i++) { key = sourceKeys[i]; if (excluded.indexOf(key) >= 0) continue; target[key] = source[key]; } return target; }

function reducer(_ref) {
  var start = _ref.start,
      end = _ref.end,
      loc = _ref.loc,
      range = _ref.range,
      extra = _ref.extra,
      closingElement = _ref.closingElement,
      selfClosing = _ref.selfClosing,
      rest = _objectWithoutProperties(_ref, ["start", "end", "loc", "range", "extra", "closingElement", "selfClosing"]);

  return Object.keys(rest).reduce(function (acc, property) {
    if (Array.isArray(acc[property])) {
      acc[property] = acc[property].map(reducer);
    } else if (acc[property] && _typeof(acc[property]) === 'object') {
      acc[property] = reducer(acc[property]);
    }

    return acc;
  }, rest);
}

function unique(nodes) {
  var lineNumbers = {};
  return nodes.reduce(function (acc, node) {
    var lineNumber = "".concat(node.loc.start.line, ":").concat(node.loc.start.column, "-").concat(node.loc.end.line, ":").concat(node.loc.end.column);

    if (!(lineNumber in lineNumbers)) {
      acc.push(node);
      lineNumbers[lineNumber] = true;
    }

    return acc;
  }, []);
}
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