jiaojiu/node_modules/babel-traverse/lib/path/family.js

"use strict";

exports.__esModule = true;

var _create = require("babel-runtime/core-js/object/create");

var _create2 = _interopRequireDefault(_create);

var _getIterator2 = require("babel-runtime/core-js/get-iterator");

var _getIterator3 = _interopRequireDefault(_getIterator2);

exports.getStatementParent = getStatementParent;
exports.getOpposite = getOpposite;
exports.getCompletionRecords = getCompletionRecords;
exports.getSibling = getSibling;
exports.getPrevSibling = getPrevSibling;
exports.getNextSibling = getNextSibling;
exports.getAllNextSiblings = getAllNextSiblings;
exports.getAllPrevSiblings = getAllPrevSiblings;
exports.get = get;
exports._getKey = _getKey;
exports._getPattern = _getPattern;
exports.getBindingIdentifiers = getBindingIdentifiers;
exports.getOuterBindingIdentifiers = getOuterBindingIdentifiers;
exports.getBindingIdentifierPaths = getBindingIdentifierPaths;
exports.getOuterBindingIdentifierPaths = getOuterBindingIdentifierPaths;

var _index = require("./index");

var _index2 = _interopRequireDefault(_index);

var _babelTypes = require("babel-types");

var t = _interopRequireWildcard(_babelTypes);

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function getStatementParent() {
  var path = this;

  do {
    if (!path.parentPath || Array.isArray(path.container) && path.isStatement()) {
      break;
    } else {
      path = path.parentPath;
    }
  } while (path);

  if (path && (path.isProgram() || path.isFile())) {
    throw new Error("File/Program node, we can't possibly find a statement parent to this");
  }

  return path;
}

function getOpposite() {
  if (this.key === "left") {
    return this.getSibling("right");
  } else if (this.key === "right") {
    return this.getSibling("left");
  }
}

function getCompletionRecords() {
  var paths = [];

  var add = function add(path) {
    if (path) paths = paths.concat(path.getCompletionRecords());
  };

  if (this.isIfStatement()) {
    add(this.get("consequent"));
    add(this.get("alternate"));
  } else if (this.isDoExpression() || this.isFor() || this.isWhile()) {
    add(this.get("body"));
  } else if (this.isProgram() || this.isBlockStatement()) {
    add(this.get("body").pop());
  } else if (this.isFunction()) {
    return this.get("body").getCompletionRecords();
  } else if (this.isTryStatement()) {
    add(this.get("block"));
    add(this.get("handler"));
    add(this.get("finalizer"));
  } else {
    paths.push(this);
  }

  return paths;
}

function getSibling(key) {
  return _index2.default.get({
    parentPath: this.parentPath,
    parent: this.parent,
    container: this.container,
    listKey: this.listKey,
    key: key
  });
}

function getPrevSibling() {
  return this.getSibling(this.key - 1);
}

function getNextSibling() {
  return this.getSibling(this.key + 1);
}

function getAllNextSiblings() {
  var _key = this.key;
  var sibling = this.getSibling(++_key);
  var siblings = [];
  while (sibling.node) {
    siblings.push(sibling);
    sibling = this.getSibling(++_key);
  }
  return siblings;
}

function getAllPrevSiblings() {
  var _key = this.key;
  var sibling = this.getSibling(--_key);
  var siblings = [];
  while (sibling.node) {
    siblings.push(sibling);
    sibling = this.getSibling(--_key);
  }
  return siblings;
}

function get(key, context) {
  if (context === true) context = this.context;
  var parts = key.split(".");
  if (parts.length === 1) {
    return this._getKey(key, context);
  } else {
    return this._getPattern(parts, context);
  }
}

function _getKey(key, context) {
  var _this = this;

  var node = this.node;
  var container = node[key];

  if (Array.isArray(container)) {
    return container.map(function (_, i) {
      return _index2.default.get({
        listKey: key,
        parentPath: _this,
        parent: node,
        container: container,
        key: i
      }).setContext(context);
    });
  } else {
    return _index2.default.get({
      parentPath: this,
      parent: node,
      container: node,
      key: key
    }).setContext(context);
  }
}

function _getPattern(parts, context) {
  var path = this;
  for (var _iterator = parts, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
    var _ref;

    if (_isArray) {
      if (_i >= _iterator.length) break;
      _ref = _iterator[_i++];
    } else {
      _i = _iterator.next();
      if (_i.done) break;
      _ref = _i.value;
    }

    var part = _ref;

    if (part === ".") {
      path = path.parentPath;
    } else {
      if (Array.isArray(path)) {
        path = path[part];
      } else {
        path = path.get(part, context);
      }
    }
  }
  return path;
}

function getBindingIdentifiers(duplicates) {
  return t.getBindingIdentifiers(this.node, duplicates);
}

function getOuterBindingIdentifiers(duplicates) {
  return t.getOuterBindingIdentifiers(this.node, duplicates);
}

function getBindingIdentifierPaths() {
  var duplicates = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
  var outerOnly = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;

  var path = this;
  var search = [].concat(path);
  var ids = (0, _create2.default)(null);

  while (search.length) {
    var id = search.shift();
    if (!id) continue;
    if (!id.node) continue;

    var keys = t.getBindingIdentifiers.keys[id.node.type];

    if (id.isIdentifier()) {
      if (duplicates) {
        var _ids = ids[id.node.name] = ids[id.node.name] || [];
        _ids.push(id);
      } else {
        ids[id.node.name] = id;
      }
      continue;
    }

    if (id.isExportDeclaration()) {
      var declaration = id.get("declaration");
      if (declaration.isDeclaration()) {
        search.push(declaration);
      }
      continue;
    }

    if (outerOnly) {
      if (id.isFunctionDeclaration()) {
        search.push(id.get("id"));
        continue;
      }
      if (id.isFunctionExpression()) {
        continue;
      }
    }

    if (keys) {
      for (var i = 0; i < keys.length; i++) {
        var key = keys[i];
        var child = id.get(key);
        if (Array.isArray(child) || child.node) {
          search = search.concat(child);
        }
      }
    }
  }

  return ids;
}

function getOuterBindingIdentifierPaths(duplicates) {
  return this.getBindingIdentifierPaths(duplicates, true);
}