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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;
}