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12 | 'use strict';
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13 |
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14 | var ReactTypeOfWork = require('./ReactTypeOfWork');
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15 | var IndeterminateComponent = ReactTypeOfWork.IndeterminateComponent,
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16 | ClassComponent = ReactTypeOfWork.ClassComponent,
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17 | HostContainer = ReactTypeOfWork.HostContainer,
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18 | HostComponent = ReactTypeOfWork.HostComponent,
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19 | CoroutineComponent = ReactTypeOfWork.CoroutineComponent,
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20 | YieldComponent = ReactTypeOfWork.YieldComponent;
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21 |
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22 | var _require = require('./ReactPriorityLevel'),
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23 | NoWork = _require.NoWork;
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24 |
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46 |
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47 |
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48 | var createFiber = function (tag, key) {
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49 | return {
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50 |
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51 |
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52 | tag: tag,
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53 |
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54 | key: key,
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55 |
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56 | type: null,
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57 |
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58 | stateNode: null,
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59 |
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60 |
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61 |
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62 | 'return': null,
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63 |
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64 | child: null,
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65 | sibling: null,
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66 |
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67 | ref: null,
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68 |
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69 | pendingProps: null,
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70 | memoizedProps: null,
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71 | updateQueue: null,
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72 | memoizedState: null,
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73 | callbackList: null,
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74 | output: null,
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75 |
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76 | nextEffect: null,
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77 | firstEffect: null,
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78 | lastEffect: null,
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79 |
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80 | pendingWorkPriority: NoWork,
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81 | progressedPriority: NoWork,
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82 | progressedChild: null,
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83 |
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84 | alternate: null
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85 | };
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86 | };
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87 |
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88 | function shouldConstruct(Component) {
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89 | return !!(Component.prototype && Component.prototype.isReactComponent);
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90 | }
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91 |
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92 |
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93 |
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94 | exports.cloneFiber = function (fiber, priorityLevel) {
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95 |
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96 |
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102 |
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103 |
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105 |
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106 |
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107 |
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108 | var alt = fiber.alternate;
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109 | if (alt) {
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110 |
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111 |
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112 | alt.nextEffect = null;
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113 | alt.firstEffect = null;
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114 | alt.lastEffect = null;
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115 | } else {
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116 |
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117 | alt = createFiber(fiber.tag, fiber.key);
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118 | alt.type = fiber.type;
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119 |
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120 | alt.progressedChild = fiber.progressedChild;
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121 | alt.progressedPriority = fiber.progressedPriority;
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122 |
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123 | alt.alternate = fiber;
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124 | fiber.alternate = alt;
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125 | }
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126 |
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127 | alt.stateNode = fiber.stateNode;
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128 | alt.child = fiber.child;
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129 | alt.sibling = fiber.sibling;
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130 | alt.ref = fiber.ref;
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131 |
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132 |
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133 | alt.pendingProps = fiber.pendingProps;
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134 | alt.updateQueue = fiber.updateQueue;
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135 | alt.callbackList = fiber.callbackList;
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136 | alt.pendingWorkPriority = priorityLevel;
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137 |
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138 | alt.memoizedProps = fiber.memoizedProps;
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139 | alt.output = fiber.output;
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140 |
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141 | return alt;
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142 | };
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143 |
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144 | exports.createHostContainerFiber = function () {
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145 | var fiber = createFiber(HostContainer, null);
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146 | return fiber;
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147 | };
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148 |
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149 | exports.createFiberFromElement = function (element, priorityLevel) {
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150 |
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151 | var fiber = createFiberFromElementType(element.type, element.key);
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152 | fiber.pendingProps = element.props;
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153 | fiber.pendingWorkPriority = priorityLevel;
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154 | return fiber;
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155 | };
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156 |
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157 | function createFiberFromElementType(type, key) {
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158 | var fiber = void 0;
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159 | if (typeof type === 'function') {
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160 | fiber = shouldConstruct(type) ? createFiber(ClassComponent, key) : createFiber(IndeterminateComponent, key);
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161 | fiber.type = type;
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162 | } else if (typeof type === 'string') {
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163 | fiber = createFiber(HostComponent, key);
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164 | fiber.type = type;
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165 | } else if (typeof type === 'object' && type !== null) {
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166 |
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167 | fiber = type;
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168 | } else {
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169 | throw new Error('Unknown component type: ' + typeof type);
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170 | }
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171 | return fiber;
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172 | }
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173 |
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174 | exports.createFiberFromElementType = createFiberFromElementType;
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175 |
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176 | exports.createFiberFromCoroutine = function (coroutine, priorityLevel) {
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177 | var fiber = createFiber(CoroutineComponent, coroutine.key);
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178 | fiber.type = coroutine.handler;
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179 | fiber.pendingProps = coroutine;
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180 | fiber.pendingWorkPriority = priorityLevel;
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181 | return fiber;
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182 | };
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183 |
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184 | exports.createFiberFromYield = function (yieldNode, priorityLevel) {
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185 | var fiber = createFiber(YieldComponent, yieldNode.key);
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186 | fiber.pendingProps = {};
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187 | return fiber;
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188 | }; |
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