webhook-action/node_modules/eslint-plugin-import/lib/rules/no-cycle.js

'use strict';var _slicedToArray = function () {function sliceIterator(arr, i) {var _arr = [];var _n = true;var _d = false;var _e = undefined;try {for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {_arr.push(_s.value);if (i && _arr.length === i) break;}} catch (err) {_d = true;_e = err;} finally {try {if (!_n && _i["return"]) _i["return"]();} finally {if (_d) throw _e;}}return _arr;}return function (arr, i) {if (Array.isArray(arr)) {return arr;} else if (Symbol.iterator in Object(arr)) {return sliceIterator(arr, i);} else {throw new TypeError("Invalid attempt to destructure non-iterable instance");}};}(); /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       * @fileOverview Ensures that no imported module imports the linted module.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       * @author Ben Mosher
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       */

var _ExportMap = require('../ExportMap');var _ExportMap2 = _interopRequireDefault(_ExportMap);
var _importType = require('../core/importType');
var _moduleVisitor = require('eslint-module-utils/moduleVisitor');var _moduleVisitor2 = _interopRequireDefault(_moduleVisitor);
var _docsUrl = require('../docsUrl');var _docsUrl2 = _interopRequireDefault(_docsUrl);function _interopRequireDefault(obj) {return obj && obj.__esModule ? obj : { default: obj };}

// todo: cache cycles / deep relationships for faster repeat evaluation
module.exports = {
  meta: {
    type: 'suggestion',
    docs: { url: (0, _docsUrl2.default)('no-cycle') },
    schema: [(0, _moduleVisitor.makeOptionsSchema)({
      maxDepth: {
        oneOf: [
        {
          description: 'maximum dependency depth to traverse',
          type: 'integer',
          minimum: 1 },

        {
          enum: ['∞'],
          type: 'string' }] },



      ignoreExternal: {
        description: 'ignore external modules',
        type: 'boolean',
        default: false } })] },




  create: function (context) {
    const myPath = context.getFilename();
    if (myPath === '<text>') return {}; // can't cycle-check a non-file

    const options = context.options[0] || {};
    const maxDepth = typeof options.maxDepth === 'number' ? options.maxDepth : Infinity;
    const ignoreModule = name => options.ignoreExternal ? (0, _importType.isExternalModule)(name) : false;

    function checkSourceValue(sourceNode, importer) {
      if (ignoreModule(sourceNode.value)) {
        return; // ignore external modules
      }

      const imported = _ExportMap2.default.get(sourceNode.value, context);

      if (importer.importKind === 'type') {
        return; // no Flow import resolution
      }

      if (imported == null) {
        return; // no-unresolved territory
      }

      if (imported.path === myPath) {
        return; // no-self-import territory
      }

      const untraversed = [{ mget: () => imported, route: [] }];
      const traversed = new Set();
      function detectCycle(_ref) {let mget = _ref.mget,route = _ref.route;
        const m = mget();
        if (m == null) return;
        if (traversed.has(m.path)) return;
        traversed.add(m.path);

        for (let _ref2 of m.imports) {var _ref3 = _slicedToArray(_ref2, 2);let path = _ref3[0];var _ref3$ = _ref3[1];let getter = _ref3$.getter;let source = _ref3$.source;
          if (path === myPath) return true;
          if (traversed.has(path)) continue;
          if (ignoreModule(source.value)) continue;
          if (route.length + 1 < maxDepth) {
            untraversed.push({
              mget: getter,
              route: route.concat(source) });

          }
        }
      }

      while (untraversed.length > 0) {
        const next = untraversed.shift(); // bfs!
        if (detectCycle(next)) {
          const message = next.route.length > 0 ?
          `Dependency cycle via ${routeString(next.route)}` :
          'Dependency cycle detected.';
          context.report(importer, message);
          return;
        }
      }
    }

    return (0, _moduleVisitor2.default)(checkSourceValue, context.options[0]);
  } };


function routeString(route) {
  return route.map(s => `${s.value}:${s.loc.start.line}`).join('=>');
}
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