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- function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }
- function findParent(_ref, cb) {
- var parentPath = _ref.parentPath;
- if (parentPath == null) {
- throw new Error("node is root");
- }
- var currentPath = parentPath;
- while (cb(currentPath) !== false) {
- // Hit the root node, stop
- // $FlowIgnore
- if (currentPath.parentPath == null) {
- return null;
- } // $FlowIgnore
- currentPath = currentPath.parentPath;
- }
- return currentPath.node;
- }
- function insertBefore(context, newNode) {
- return insert(context, newNode);
- }
- function insertAfter(context, newNode) {
- return insert(context, newNode, 1);
- }
- function insert(_ref2, newNode) {
- var node = _ref2.node,
- inList = _ref2.inList,
- parentPath = _ref2.parentPath,
- parentKey = _ref2.parentKey;
- var indexOffset = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
- if (!inList) {
- throw new Error('inList' + " error: " + ("insert can only be used for nodes that are within lists" || "unknown"));
- }
- if (!(parentPath != null)) {
- throw new Error('parentPath != null' + " error: " + ("Can not remove root node" || "unknown"));
- }
- // $FlowIgnore
- var parentList = parentPath.node[parentKey];
- var indexInList = parentList.findIndex(function (n) {
- return n === node;
- });
- parentList.splice(indexInList + indexOffset, 0, newNode);
- }
- function remove(_ref3) {
- var node = _ref3.node,
- parentKey = _ref3.parentKey,
- parentPath = _ref3.parentPath;
- if (!(parentPath != null)) {
- throw new Error('parentPath != null' + " error: " + ("Can not remove root node" || "unknown"));
- }
- // $FlowIgnore
- var parentNode = parentPath.node; // $FlowIgnore
- var parentProperty = parentNode[parentKey];
- if (Array.isArray(parentProperty)) {
- // $FlowIgnore
- parentNode[parentKey] = parentProperty.filter(function (n) {
- return n !== node;
- });
- } else {
- // $FlowIgnore
- delete parentNode[parentKey];
- }
- node._deleted = true;
- }
- function stop(context) {
- context.shouldStop = true;
- }
- function replaceWith(context, newNode) {
- // $FlowIgnore
- var parentNode = context.parentPath.node; // $FlowIgnore
- var parentProperty = parentNode[context.parentKey];
- if (Array.isArray(parentProperty)) {
- var indexInList = parentProperty.findIndex(function (n) {
- return n === context.node;
- });
- parentProperty.splice(indexInList, 1, newNode);
- } else {
- // $FlowIgnore
- parentNode[context.parentKey] = newNode;
- }
- context.node._deleted = true;
- context.node = newNode;
- } // bind the context to the first argument of node operations
- function bindNodeOperations(operations, context) {
- var keys = Object.keys(operations);
- var boundOperations = {};
- keys.forEach(function (key) {
- boundOperations[key] = operations[key].bind(null, context);
- });
- return boundOperations;
- }
- function createPathOperations(context) {
- // $FlowIgnore
- return bindNodeOperations({
- findParent: findParent,
- replaceWith: replaceWith,
- remove: remove,
- insertBefore: insertBefore,
- insertAfter: insertAfter,
- stop: stop
- }, context);
- }
- export function createPath(context) {
- var path = _extends({}, context); // $FlowIgnore
- Object.assign(path, createPathOperations(path)); // $FlowIgnore
- return path;
- }
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