1 | 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); }
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2 |
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3 | function findParent(_ref, cb) {
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4 | var parentPath = _ref.parentPath;
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5 |
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6 | if (parentPath == null) {
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7 | throw new Error("node is root");
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8 | }
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9 |
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10 | var currentPath = parentPath;
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11 |
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12 | while (cb(currentPath) !== false) {
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13 | // Hit the root node, stop
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14 | // $FlowIgnore
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15 | if (currentPath.parentPath == null) {
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16 | return null;
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17 | } // $FlowIgnore
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18 |
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19 |
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20 | currentPath = currentPath.parentPath;
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21 | }
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22 |
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23 | return currentPath.node;
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24 | }
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25 |
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26 | function insertBefore(context, newNode) {
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27 | return insert(context, newNode);
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28 | }
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29 |
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30 | function insertAfter(context, newNode) {
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31 | return insert(context, newNode, 1);
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32 | }
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33 |
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34 | function insert(_ref2, newNode) {
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35 | var node = _ref2.node,
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36 | inList = _ref2.inList,
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37 | parentPath = _ref2.parentPath,
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38 | parentKey = _ref2.parentKey;
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39 | var indexOffset = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
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40 |
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41 | if (!inList) {
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42 | throw new Error('inList' + " error: " + ("insert can only be used for nodes that are within lists" || "unknown"));
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43 | }
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44 |
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45 | if (!(parentPath != null)) {
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46 | throw new Error('parentPath != null' + " error: " + ("Can not remove root node" || "unknown"));
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47 | }
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48 |
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49 | // $FlowIgnore
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50 | var parentList = parentPath.node[parentKey];
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51 | var indexInList = parentList.findIndex(function (n) {
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52 | return n === node;
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53 | });
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54 | parentList.splice(indexInList + indexOffset, 0, newNode);
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55 | }
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56 |
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57 | function remove(_ref3) {
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58 | var node = _ref3.node,
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59 | parentKey = _ref3.parentKey,
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60 | parentPath = _ref3.parentPath;
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61 |
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62 | if (!(parentPath != null)) {
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63 | throw new Error('parentPath != null' + " error: " + ("Can not remove root node" || "unknown"));
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64 | }
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65 |
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66 | // $FlowIgnore
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67 | var parentNode = parentPath.node; // $FlowIgnore
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68 |
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69 | var parentProperty = parentNode[parentKey];
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70 |
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71 | if (Array.isArray(parentProperty)) {
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72 | // $FlowIgnore
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73 | parentNode[parentKey] = parentProperty.filter(function (n) {
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74 | return n !== node;
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75 | });
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76 | } else {
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77 | // $FlowIgnore
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78 | delete parentNode[parentKey];
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79 | }
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80 |
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81 | node._deleted = true;
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82 | }
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83 |
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84 | function stop(context) {
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85 | context.shouldStop = true;
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86 | }
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87 |
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88 | function replaceWith(context, newNode) {
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89 | // $FlowIgnore
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90 | var parentNode = context.parentPath.node; // $FlowIgnore
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91 |
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92 | var parentProperty = parentNode[context.parentKey];
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93 |
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94 | if (Array.isArray(parentProperty)) {
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95 | var indexInList = parentProperty.findIndex(function (n) {
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96 | return n === context.node;
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97 | });
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98 | parentProperty.splice(indexInList, 1, newNode);
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99 | } else {
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100 | // $FlowIgnore
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101 | parentNode[context.parentKey] = newNode;
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102 | }
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103 |
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104 | context.node._deleted = true;
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105 | context.node = newNode;
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106 | } // bind the context to the first argument of node operations
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107 |
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108 |
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109 | function bindNodeOperations(operations, context) {
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110 | var keys = Object.keys(operations);
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111 | var boundOperations = {};
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112 | keys.forEach(function (key) {
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113 | boundOperations[key] = operations[key].bind(null, context);
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114 | });
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115 | return boundOperations;
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116 | }
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117 |
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118 | function createPathOperations(context) {
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119 | // $FlowIgnore
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120 | return bindNodeOperations({
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121 | findParent: findParent,
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122 | replaceWith: replaceWith,
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123 | remove: remove,
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124 | insertBefore: insertBefore,
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125 | insertAfter: insertAfter,
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126 | stop: stop
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127 | }, context);
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128 | }
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129 |
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130 | export function createPath(context) {
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131 | var path = _extends({}, context); // $FlowIgnore
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132 |
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133 |
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134 | Object.assign(path, createPathOperations(path)); // $FlowIgnore
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135 |
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136 | return path;
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137 | } |
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