1 |
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2 |
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3 |
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4 |
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5 |
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6 | "use strict";
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7 |
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8 | const { equals } = require("./util/ArrayHelpers");
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9 | const SortableSet = require("./util/SortableSet");
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10 | const makeSerializable = require("./util/makeSerializable");
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11 | const { forEachRuntime } = require("./util/runtime");
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12 |
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13 |
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14 |
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15 |
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16 |
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17 |
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18 |
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19 |
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20 |
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21 |
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22 | const UsageState = Object.freeze({
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23 | Unused: (0),
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24 | OnlyPropertiesUsed: (1),
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25 | NoInfo: (2),
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26 | Unknown: (3),
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27 | Used: (4)
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28 | });
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29 |
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30 | const RETURNS_TRUE = () => true;
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31 |
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32 | const CIRCULAR = Symbol("circular target");
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33 |
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34 | class RestoreProvidedData {
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35 | constructor(
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36 | exports,
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37 | otherProvided,
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38 | otherCanMangleProvide,
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39 | otherTerminalBinding
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40 | ) {
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41 | this.exports = exports;
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42 | this.otherProvided = otherProvided;
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43 | this.otherCanMangleProvide = otherCanMangleProvide;
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44 | this.otherTerminalBinding = otherTerminalBinding;
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45 | }
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46 |
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47 | serialize({ write }) {
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48 | write(this.exports);
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49 | write(this.otherProvided);
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50 | write(this.otherCanMangleProvide);
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51 | write(this.otherTerminalBinding);
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52 | }
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53 |
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54 | static deserialize({ read }) {
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55 | return new RestoreProvidedData(read(), read(), read(), read());
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56 | }
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57 | }
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58 |
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59 | makeSerializable(
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60 | RestoreProvidedData,
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61 | "webpack/lib/ModuleGraph",
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62 | "RestoreProvidedData"
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63 | );
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64 |
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65 | class ExportsInfo {
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66 | constructor() {
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67 |
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68 | this._exports = new Map();
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69 | this._otherExportsInfo = new ExportInfo(null);
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70 | this._sideEffectsOnlyInfo = new ExportInfo("*side effects only*");
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71 | this._exportsAreOrdered = false;
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72 |
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73 | this._redirectTo = undefined;
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74 | }
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75 |
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76 | |
77 |
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78 |
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79 | get ownedExports() {
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80 | return this._exports.values();
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81 | }
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82 |
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83 | |
84 |
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85 |
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86 | get orderedOwnedExports() {
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87 | if (!this._exportsAreOrdered) {
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88 | this._sortExports();
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89 | }
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90 | return this._exports.values();
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91 | }
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92 |
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93 | |
94 |
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95 |
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96 | get exports() {
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97 | if (this._redirectTo !== undefined) {
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98 | const map = new Map(this._redirectTo._exports);
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99 | for (const [key, value] of this._exports) {
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100 | map.set(key, value);
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101 | }
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102 | return map.values();
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103 | }
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104 | return this._exports.values();
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105 | }
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106 |
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107 | |
108 |
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109 |
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110 | get orderedExports() {
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111 | if (!this._exportsAreOrdered) {
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112 | this._sortExports();
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113 | }
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114 | if (this._redirectTo !== undefined) {
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115 | const map = new Map(
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116 | Array.from(this._redirectTo.orderedExports, item => [item.name, item])
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117 | );
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118 | for (const [key, value] of this._exports) {
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119 | map.set(key, value);
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120 | }
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121 |
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122 |
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123 | this._sortExportsMap(map);
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124 | return map.values();
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125 | }
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126 | return this._exports.values();
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127 | }
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128 |
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129 | |
130 |
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131 |
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132 | get otherExportsInfo() {
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133 | if (this._redirectTo !== undefined)
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134 | return this._redirectTo.otherExportsInfo;
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135 | return this._otherExportsInfo;
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136 | }
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137 |
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138 | _sortExportsMap(exports) {
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139 | if (exports.size > 1) {
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140 | const entriesInOrder = Array.from(exports.values());
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141 | if (
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142 | entriesInOrder.length !== 2 ||
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143 | entriesInOrder[0].name > entriesInOrder[1].name
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144 | ) {
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145 | entriesInOrder.sort((a, b) => {
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146 | return a.name < b.name ? -1 : 1;
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147 | });
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148 | exports.clear();
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149 | for (const entry of entriesInOrder) {
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150 | exports.set(entry.name, entry);
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151 | }
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152 | }
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153 | }
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154 | }
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155 |
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156 | _sortExports() {
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157 | this._sortExportsMap(this._exports);
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158 | this._exportsAreOrdered = true;
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159 | }
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160 |
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161 | setRedirectNamedTo(exportsInfo) {
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162 | if (this._redirectTo === exportsInfo) return false;
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163 | this._redirectTo = exportsInfo;
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164 | return true;
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165 | }
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166 |
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167 | setHasProvideInfo() {
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168 | for (const exportInfo of this._exports.values()) {
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169 | if (exportInfo.provided === undefined) {
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170 | exportInfo.provided = false;
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171 | }
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172 | if (exportInfo.canMangleProvide === undefined) {
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173 | exportInfo.canMangleProvide = true;
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174 | }
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175 | }
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176 | if (this._redirectTo !== undefined) {
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177 | this._redirectTo.setHasProvideInfo();
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178 | } else {
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179 | if (this._otherExportsInfo.provided === undefined) {
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180 | this._otherExportsInfo.provided = false;
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181 | }
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182 | if (this._otherExportsInfo.canMangleProvide === undefined) {
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183 | this._otherExportsInfo.canMangleProvide = true;
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184 | }
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185 | }
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186 | }
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187 |
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188 | setHasUseInfo() {
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189 | for (const exportInfo of this._exports.values()) {
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190 | exportInfo.setHasUseInfo();
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191 | }
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192 | this._sideEffectsOnlyInfo.setHasUseInfo();
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193 | if (this._redirectTo !== undefined) {
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194 | this._redirectTo.setHasUseInfo();
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195 | } else {
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196 | this._otherExportsInfo.setHasUseInfo();
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197 | if (this._otherExportsInfo.canMangleUse === undefined) {
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198 | this._otherExportsInfo.canMangleUse = true;
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199 | }
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200 | }
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201 | }
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202 |
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203 | |
204 |
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205 |
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206 |
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207 | getOwnExportInfo(name) {
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208 | const info = this._exports.get(name);
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209 | if (info !== undefined) return info;
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210 | const newInfo = new ExportInfo(name, this._otherExportsInfo);
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211 | this._exports.set(name, newInfo);
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212 | this._exportsAreOrdered = false;
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213 | return newInfo;
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214 | }
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215 |
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216 | |
217 |
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218 |
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219 |
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220 | getExportInfo(name) {
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221 | const info = this._exports.get(name);
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222 | if (info !== undefined) return info;
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223 | if (this._redirectTo !== undefined)
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224 | return this._redirectTo.getExportInfo(name);
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225 | const newInfo = new ExportInfo(name, this._otherExportsInfo);
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226 | this._exports.set(name, newInfo);
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227 | this._exportsAreOrdered = false;
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228 | return newInfo;
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229 | }
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230 |
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231 | |
232 |
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233 |
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234 |
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235 | getReadOnlyExportInfo(name) {
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236 | const info = this._exports.get(name);
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237 | if (info !== undefined) return info;
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238 | if (this._redirectTo !== undefined)
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239 | return this._redirectTo.getReadOnlyExportInfo(name);
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240 | return this._otherExportsInfo;
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241 | }
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242 |
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243 | |
244 |
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245 |
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246 |
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247 | getReadOnlyExportInfoRecursive(name) {
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248 | const exportInfo = this.getReadOnlyExportInfo(name[0]);
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249 | if (name.length === 1) return exportInfo;
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250 | if (!exportInfo.exportsInfo) return undefined;
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251 | return exportInfo.exportsInfo.getReadOnlyExportInfoRecursive(name.slice(1));
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252 | }
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253 |
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254 | |
255 |
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256 |
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257 |
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258 | getNestedExportsInfo(name) {
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259 | if (Array.isArray(name) && name.length > 0) {
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260 | const info = this.getReadOnlyExportInfo(name[0]);
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261 | if (!info.exportsInfo) return undefined;
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262 | return info.exportsInfo.getNestedExportsInfo(name.slice(1));
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263 | }
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264 | return this;
|
265 | }
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266 |
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267 | |
268 |
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269 |
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270 |
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271 |
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272 |
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273 |
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274 | setUnknownExportsProvided(
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275 | canMangle,
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276 | excludeExports,
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277 | targetKey,
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278 | targetModule
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279 | ) {
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280 | let changed = false;
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281 | if (excludeExports) {
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282 | for (const name of excludeExports) {
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283 |
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284 | this.getExportInfo(name);
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285 | }
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286 | }
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287 | for (const exportInfo of this._exports.values()) {
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288 | if (excludeExports && excludeExports.has(exportInfo.name)) continue;
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289 | if (exportInfo.provided !== true && exportInfo.provided !== null) {
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290 | exportInfo.provided = null;
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291 | changed = true;
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292 | }
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293 | if (!canMangle && exportInfo.canMangleProvide !== false) {
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294 | exportInfo.canMangleProvide = false;
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295 | changed = true;
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296 | }
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297 | if (targetKey) {
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298 | exportInfo.setTarget(targetKey, targetModule, [exportInfo.name]);
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299 | }
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300 | }
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301 | if (this._redirectTo !== undefined) {
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302 | if (
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303 | this._redirectTo.setUnknownExportsProvided(
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304 | canMangle,
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305 | excludeExports,
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306 | targetKey,
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307 | targetModule
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308 | )
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309 | ) {
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310 | changed = true;
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311 | }
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312 | } else {
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313 | if (
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314 | this._otherExportsInfo.provided !== true &&
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315 | this._otherExportsInfo.provided !== null
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316 | ) {
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317 | this._otherExportsInfo.provided = null;
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318 | changed = true;
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319 | }
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320 | if (!canMangle && this._otherExportsInfo.canMangleProvide !== false) {
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321 | this._otherExportsInfo.canMangleProvide = false;
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322 | changed = true;
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323 | }
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324 | if (targetKey) {
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325 | this._otherExportsInfo.setTarget(targetKey, targetModule, undefined);
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326 | }
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327 | }
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328 | return changed;
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329 | }
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330 |
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331 | |
332 |
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333 |
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334 |
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335 | setUsedInUnknownWay(runtime) {
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336 | let changed = false;
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337 | for (const exportInfo of this._exports.values()) {
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338 | if (exportInfo.setUsedInUnknownWay(runtime)) {
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339 | changed = true;
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340 | }
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341 | }
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342 | if (this._redirectTo !== undefined) {
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343 | if (this._redirectTo.setUsedInUnknownWay(runtime)) {
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344 | changed = true;
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345 | }
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346 | } else {
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347 | if (
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348 | this._otherExportsInfo.setUsedConditionally(
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349 | used => used < UsageState.Unknown,
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350 | UsageState.Unknown,
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351 | runtime
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352 | )
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353 | ) {
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354 | changed = true;
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355 | }
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356 | if (this._otherExportsInfo.canMangleUse !== false) {
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357 | this._otherExportsInfo.canMangleUse = false;
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358 | changed = true;
|
359 | }
|
360 | }
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361 | return changed;
|
362 | }
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363 |
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364 | |
365 |
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366 |
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367 |
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368 | setUsedWithoutInfo(runtime) {
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369 | let changed = false;
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370 | for (const exportInfo of this._exports.values()) {
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371 | if (exportInfo.setUsedWithoutInfo(runtime)) {
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372 | changed = true;
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373 | }
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374 | }
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375 | if (this._redirectTo !== undefined) {
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376 | if (this._redirectTo.setUsedWithoutInfo(runtime)) {
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377 | changed = true;
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378 | }
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379 | } else {
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380 | if (this._otherExportsInfo.setUsed(UsageState.NoInfo, runtime)) {
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381 | changed = true;
|
382 | }
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383 | if (this._otherExportsInfo.canMangleUse !== false) {
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384 | this._otherExportsInfo.canMangleUse = false;
|
385 | changed = true;
|
386 | }
|
387 | }
|
388 | return changed;
|
389 | }
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390 |
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391 | |
392 |
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393 |
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394 |
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395 | setAllKnownExportsUsed(runtime) {
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396 | let changed = false;
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397 | for (const exportInfo of this._exports.values()) {
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398 | if (!exportInfo.provided) continue;
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399 | if (exportInfo.setUsed(UsageState.Used, runtime)) {
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400 | changed = true;
|
401 | }
|
402 | }
|
403 | return changed;
|
404 | }
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405 |
|
406 | |
407 |
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408 |
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409 |
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410 | setUsedForSideEffectsOnly(runtime) {
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411 | return this._sideEffectsOnlyInfo.setUsedConditionally(
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412 | used => used === UsageState.Unused,
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413 | UsageState.Used,
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414 | runtime
|
415 | );
|
416 | }
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417 |
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418 | |
419 |
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420 |
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421 |
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422 | isUsed(runtime) {
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423 | if (this._redirectTo !== undefined) {
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424 | if (this._redirectTo.isUsed(runtime)) {
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425 | return true;
|
426 | }
|
427 | } else {
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428 | if (this._otherExportsInfo.getUsed(runtime) !== UsageState.Unused) {
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429 | return true;
|
430 | }
|
431 | }
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432 | for (const exportInfo of this._exports.values()) {
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433 | if (exportInfo.getUsed(runtime) !== UsageState.Unused) {
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434 | return true;
|
435 | }
|
436 | }
|
437 | return false;
|
438 | }
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439 |
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440 | |
441 |
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442 |
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443 |
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444 | isModuleUsed(runtime) {
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445 | if (this.isUsed(runtime)) return true;
|
446 | if (this._sideEffectsOnlyInfo.getUsed(runtime) !== UsageState.Unused)
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447 | return true;
|
448 | return false;
|
449 | }
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450 |
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451 | |
452 |
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453 |
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454 |
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455 | getUsedExports(runtime) {
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456 | if (!this._redirectTo !== undefined) {
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457 | switch (this._otherExportsInfo.getUsed(runtime)) {
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458 | case UsageState.NoInfo:
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459 | return null;
|
460 | case UsageState.Unknown:
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461 | case UsageState.OnlyPropertiesUsed:
|
462 | case UsageState.Used:
|
463 | return true;
|
464 | }
|
465 | }
|
466 | const array = [];
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467 | if (!this._exportsAreOrdered) this._sortExports();
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468 | for (const exportInfo of this._exports.values()) {
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469 | switch (exportInfo.getUsed(runtime)) {
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470 | case UsageState.NoInfo:
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471 | return null;
|
472 | case UsageState.Unknown:
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473 | return true;
|
474 | case UsageState.OnlyPropertiesUsed:
|
475 | case UsageState.Used:
|
476 | array.push(exportInfo.name);
|
477 | }
|
478 | }
|
479 | if (this._redirectTo !== undefined) {
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480 | const inner = this._redirectTo.getUsedExports(runtime);
|
481 | if (inner === null) return null;
|
482 | if (inner === true) return true;
|
483 | if (inner !== false) {
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484 | for (const item of inner) {
|
485 | array.push(item);
|
486 | }
|
487 | }
|
488 | }
|
489 | if (array.length === 0) {
|
490 | switch (this._sideEffectsOnlyInfo.getUsed(runtime)) {
|
491 | case UsageState.NoInfo:
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492 | return null;
|
493 | case UsageState.Unused:
|
494 | return false;
|
495 | }
|
496 | }
|
497 | return new SortableSet(array);
|
498 | }
|
499 |
|
500 | |
501 |
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502 |
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503 | getProvidedExports() {
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504 | if (!this._redirectTo !== undefined) {
|
505 | switch (this._otherExportsInfo.provided) {
|
506 | case undefined:
|
507 | return null;
|
508 | case null:
|
509 | return true;
|
510 | case true:
|
511 | return true;
|
512 | }
|
513 | }
|
514 | const array = [];
|
515 | if (!this._exportsAreOrdered) this._sortExports();
|
516 | for (const exportInfo of this._exports.values()) {
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517 | switch (exportInfo.provided) {
|
518 | case undefined:
|
519 | return null;
|
520 | case null:
|
521 | return true;
|
522 | case true:
|
523 | array.push(exportInfo.name);
|
524 | }
|
525 | }
|
526 | if (this._redirectTo !== undefined) {
|
527 | const inner = this._redirectTo.getProvidedExports();
|
528 | if (inner === null) return null;
|
529 | if (inner === true) return true;
|
530 | for (const item of inner) {
|
531 | if (!array.includes(item)) {
|
532 | array.push(item);
|
533 | }
|
534 | }
|
535 | }
|
536 | return array;
|
537 | }
|
538 |
|
539 | |
540 |
|
541 |
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542 |
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543 | getRelevantExports(runtime) {
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544 | const list = [];
|
545 | for (const exportInfo of this._exports.values()) {
|
546 | const used = exportInfo.getUsed(runtime);
|
547 | if (used === UsageState.Unused) continue;
|
548 | if (exportInfo.provided === false) continue;
|
549 | list.push(exportInfo);
|
550 | }
|
551 | if (this._redirectTo !== undefined) {
|
552 | for (const exportInfo of this._redirectTo.getRelevantExports(runtime)) {
|
553 | if (!this._exports.has(exportInfo.name)) list.push(exportInfo);
|
554 | }
|
555 | }
|
556 | if (
|
557 | this._otherExportsInfo.provided !== false &&
|
558 | this._otherExportsInfo.getUsed(runtime) !== UsageState.Unused
|
559 | ) {
|
560 | list.push(this._otherExportsInfo);
|
561 | }
|
562 | return list;
|
563 | }
|
564 |
|
565 | |
566 |
|
567 |
|
568 |
|
569 | isExportProvided(name) {
|
570 | if (Array.isArray(name)) {
|
571 | const info = this.getReadOnlyExportInfo(name[0]);
|
572 | if (info.exportsInfo && name.length > 1) {
|
573 | return info.exportsInfo.isExportProvided(name.slice(1));
|
574 | }
|
575 | return info.provided;
|
576 | }
|
577 | const info = this.getReadOnlyExportInfo(name);
|
578 | return info.provided;
|
579 | }
|
580 |
|
581 | |
582 |
|
583 |
|
584 |
|
585 | getUsageKey(runtime) {
|
586 | const key = [];
|
587 | if (this._redirectTo !== undefined) {
|
588 | key.push(this._redirectTo.getUsageKey(runtime));
|
589 | } else {
|
590 | key.push(this._otherExportsInfo.getUsed(runtime));
|
591 | }
|
592 | key.push(this._sideEffectsOnlyInfo.getUsed(runtime));
|
593 | for (const exportInfo of this.orderedOwnedExports) {
|
594 | key.push(exportInfo.getUsed(runtime));
|
595 | }
|
596 | return key.join("|");
|
597 | }
|
598 |
|
599 | |
600 |
|
601 |
|
602 |
|
603 |
|
604 | isEquallyUsed(runtimeA, runtimeB) {
|
605 | if (this._redirectTo !== undefined) {
|
606 | if (!this._redirectTo.isEquallyUsed(runtimeA, runtimeB)) return false;
|
607 | } else {
|
608 | if (
|
609 | this._otherExportsInfo.getUsed(runtimeA) !==
|
610 | this._otherExportsInfo.getUsed(runtimeB)
|
611 | ) {
|
612 | return false;
|
613 | }
|
614 | }
|
615 | if (
|
616 | this._sideEffectsOnlyInfo.getUsed(runtimeA) !==
|
617 | this._sideEffectsOnlyInfo.getUsed(runtimeB)
|
618 | ) {
|
619 | return false;
|
620 | }
|
621 | for (const exportInfo of this.ownedExports) {
|
622 | if (exportInfo.getUsed(runtimeA) !== exportInfo.getUsed(runtimeB))
|
623 | return false;
|
624 | }
|
625 | return true;
|
626 | }
|
627 |
|
628 | |
629 |
|
630 |
|
631 |
|
632 |
|
633 | getUsed(name, runtime) {
|
634 | if (Array.isArray(name)) {
|
635 | if (name.length === 0) return this.otherExportsInfo.getUsed(runtime);
|
636 | let info = this.getReadOnlyExportInfo(name[0]);
|
637 | if (info.exportsInfo && name.length > 1) {
|
638 | return info.exportsInfo.getUsed(name.slice(1), runtime);
|
639 | }
|
640 | return info.getUsed(runtime);
|
641 | }
|
642 | let info = this.getReadOnlyExportInfo(name);
|
643 | return info.getUsed(runtime);
|
644 | }
|
645 |
|
646 | |
647 |
|
648 |
|
649 |
|
650 |
|
651 | getUsedName(name, runtime) {
|
652 | if (Array.isArray(name)) {
|
653 |
|
654 | if (name.length === 0) {
|
655 | if (!this.isUsed(runtime)) return false;
|
656 | return name;
|
657 | }
|
658 | let info = this.getReadOnlyExportInfo(name[0]);
|
659 | const x = info.getUsedName(name[0], runtime);
|
660 | if (x === false) return false;
|
661 | const arr = x === name[0] && name.length === 1 ? name : [x];
|
662 | if (name.length === 1) {
|
663 | return arr;
|
664 | }
|
665 | if (
|
666 | info.exportsInfo &&
|
667 | info.getUsed(runtime) === UsageState.OnlyPropertiesUsed
|
668 | ) {
|
669 | const nested = info.exportsInfo.getUsedName(name.slice(1), runtime);
|
670 | if (!nested) return false;
|
671 | return arr.concat(nested);
|
672 | } else {
|
673 | return arr.concat(name.slice(1));
|
674 | }
|
675 | } else {
|
676 | let info = this.getReadOnlyExportInfo(name);
|
677 | const usedName = info.getUsedName(name, runtime);
|
678 | return usedName;
|
679 | }
|
680 | }
|
681 |
|
682 | |
683 |
|
684 |
|
685 |
|
686 |
|
687 | updateHash(hash, runtime) {
|
688 | this._updateHash(hash, runtime, new Set());
|
689 | }
|
690 |
|
691 | |
692 |
|
693 |
|
694 |
|
695 |
|
696 |
|
697 | _updateHash(hash, runtime, alreadyVisitedExportsInfo) {
|
698 | const set = new Set(alreadyVisitedExportsInfo);
|
699 | set.add(this);
|
700 | for (const exportInfo of this.orderedExports) {
|
701 | if (exportInfo.hasInfo(this._otherExportsInfo, runtime)) {
|
702 | exportInfo._updateHash(hash, runtime, set);
|
703 | }
|
704 | }
|
705 | this._sideEffectsOnlyInfo._updateHash(hash, runtime, set);
|
706 | this._otherExportsInfo._updateHash(hash, runtime, set);
|
707 | if (this._redirectTo !== undefined) {
|
708 | this._redirectTo._updateHash(hash, runtime, set);
|
709 | }
|
710 | }
|
711 |
|
712 | getRestoreProvidedData() {
|
713 | const otherProvided = this._otherExportsInfo.provided;
|
714 | const otherCanMangleProvide = this._otherExportsInfo.canMangleProvide;
|
715 | const otherTerminalBinding = this._otherExportsInfo.terminalBinding;
|
716 | const exports = [];
|
717 | for (const exportInfo of this._exports.values()) {
|
718 | if (
|
719 | exportInfo.provided !== otherProvided ||
|
720 | exportInfo.canMangleProvide !== otherCanMangleProvide ||
|
721 | exportInfo.terminalBinding !== otherTerminalBinding ||
|
722 | exportInfo.exportsInfoOwned
|
723 | ) {
|
724 | exports.push({
|
725 | name: exportInfo.name,
|
726 | provided: exportInfo.provided,
|
727 | canMangleProvide: exportInfo.canMangleProvide,
|
728 | terminalBinding: exportInfo.terminalBinding,
|
729 | exportsInfo: exportInfo.exportsInfoOwned
|
730 | ? exportInfo.exportsInfo.getRestoreProvidedData()
|
731 | : undefined
|
732 | });
|
733 | }
|
734 | }
|
735 | return new RestoreProvidedData(
|
736 | exports,
|
737 | otherProvided,
|
738 | otherCanMangleProvide,
|
739 | otherTerminalBinding
|
740 | );
|
741 | }
|
742 |
|
743 | restoreProvided({
|
744 | otherProvided,
|
745 | otherCanMangleProvide,
|
746 | otherTerminalBinding,
|
747 | exports
|
748 | }) {
|
749 | for (const exportInfo of this._exports.values()) {
|
750 | exportInfo.provided = otherProvided;
|
751 | exportInfo.canMangleProvide = otherCanMangleProvide;
|
752 | exportInfo.terminalBinding = otherTerminalBinding;
|
753 | }
|
754 | this._otherExportsInfo.provided = otherProvided;
|
755 | this._otherExportsInfo.canMangleProvide = otherCanMangleProvide;
|
756 | this._otherExportsInfo.terminalBinding = otherTerminalBinding;
|
757 | for (const exp of exports) {
|
758 | const exportInfo = this.getExportInfo(exp.name);
|
759 | exportInfo.provided = exp.provided;
|
760 | exportInfo.canMangleProvide = exp.canMangleProvide;
|
761 | exportInfo.terminalBinding = exp.terminalBinding;
|
762 | if (exp.exportsInfo) {
|
763 | const exportsInfo = exportInfo.createNestedExportsInfo();
|
764 | exportsInfo.restoreProvided(exp.exportsInfo);
|
765 | }
|
766 | }
|
767 | }
|
768 | }
|
769 |
|
770 | class ExportInfo {
|
771 | |
772 |
|
773 |
|
774 |
|
775 | constructor(name, initFrom) {
|
776 |
|
777 | this.name = name;
|
778 |
|
779 | this._usedName = initFrom ? initFrom._usedName : null;
|
780 |
|
781 | this._globalUsed = initFrom ? initFrom._globalUsed : undefined;
|
782 |
|
783 | this._usedInRuntime =
|
784 | initFrom && initFrom._usedInRuntime
|
785 | ? new Map(initFrom._usedInRuntime)
|
786 | : undefined;
|
787 |
|
788 | this._hasUseInRuntimeInfo = initFrom
|
789 | ? initFrom._hasUseInRuntimeInfo
|
790 | : false;
|
791 | |
792 |
|
793 |
|
794 |
|
795 |
|
796 |
|
797 |
|
798 | this.provided = initFrom ? initFrom.provided : undefined;
|
799 | |
800 |
|
801 |
|
802 |
|
803 | this.terminalBinding = initFrom ? initFrom.terminalBinding : false;
|
804 | |
805 |
|
806 |
|
807 |
|
808 |
|
809 |
|
810 | this.canMangleProvide = initFrom ? initFrom.canMangleProvide : undefined;
|
811 | |
812 |
|
813 |
|
814 |
|
815 |
|
816 |
|
817 | this.canMangleUse = initFrom ? initFrom.canMangleUse : undefined;
|
818 |
|
819 | this.exportsInfoOwned = false;
|
820 |
|
821 | this.exportsInfo = undefined;
|
822 |
|
823 | this._target = undefined;
|
824 | if (initFrom && initFrom._target) {
|
825 | this._target = new Map();
|
826 | for (const [key, value] of initFrom._target) {
|
827 | this._target.set(
|
828 | key,
|
829 | value ? { connection: value.connection, export: [name] } : null
|
830 | );
|
831 | }
|
832 | }
|
833 | }
|
834 |
|
835 |
|
836 |
|
837 | get used() {
|
838 | throw new Error("REMOVED");
|
839 | }
|
840 |
|
841 | get usedName() {
|
842 | throw new Error("REMOVED");
|
843 | }
|
844 | |
845 |
|
846 |
|
847 |
|
848 | set used(v) {
|
849 | throw new Error("REMOVED");
|
850 | }
|
851 | |
852 |
|
853 |
|
854 |
|
855 | set usedName(v) {
|
856 | throw new Error("REMOVED");
|
857 | }
|
858 |
|
859 | get canMangle() {
|
860 | switch (this.canMangleProvide) {
|
861 | case undefined:
|
862 | return this.canMangleUse === false ? false : undefined;
|
863 | case false:
|
864 | return false;
|
865 | case true:
|
866 | switch (this.canMangleUse) {
|
867 | case undefined:
|
868 | return undefined;
|
869 | case false:
|
870 | return false;
|
871 | case true:
|
872 | return true;
|
873 | }
|
874 | }
|
875 | throw new Error(
|
876 | `Unexpected flags for canMangle ${this.canMangleProvide} ${this.canMangleUse}`
|
877 | );
|
878 | }
|
879 |
|
880 | |
881 |
|
882 |
|
883 |
|
884 | setUsedInUnknownWay(runtime) {
|
885 | let changed = false;
|
886 | if (
|
887 | this.setUsedConditionally(
|
888 | used => used < UsageState.Unknown,
|
889 | UsageState.Unknown,
|
890 | runtime
|
891 | )
|
892 | ) {
|
893 | changed = true;
|
894 | }
|
895 | if (this.canMangleUse !== false) {
|
896 | this.canMangleUse = false;
|
897 | changed = true;
|
898 | }
|
899 | return changed;
|
900 | }
|
901 |
|
902 | |
903 |
|
904 |
|
905 |
|
906 | setUsedWithoutInfo(runtime) {
|
907 | let changed = false;
|
908 | if (this.setUsed(UsageState.NoInfo, runtime)) {
|
909 | changed = true;
|
910 | }
|
911 | if (this.canMangleUse !== false) {
|
912 | this.canMangleUse = false;
|
913 | changed = true;
|
914 | }
|
915 | return changed;
|
916 | }
|
917 |
|
918 | setHasUseInfo() {
|
919 | if (!this._hasUseInRuntimeInfo) {
|
920 | this._hasUseInRuntimeInfo = true;
|
921 | }
|
922 | if (this.canMangleUse === undefined) {
|
923 | this.canMangleUse = true;
|
924 | }
|
925 | if (this.exportsInfoOwned) {
|
926 | this.exportsInfo.setHasUseInfo();
|
927 | }
|
928 | }
|
929 |
|
930 | |
931 |
|
932 |
|
933 |
|
934 |
|
935 |
|
936 | setUsedConditionally(condition, newValue, runtime) {
|
937 | if (runtime === undefined) {
|
938 | if (this._globalUsed === undefined) {
|
939 | this._globalUsed = newValue;
|
940 | return true;
|
941 | } else {
|
942 | if (this._globalUsed !== newValue && condition(this._globalUsed)) {
|
943 | this._globalUsed = newValue;
|
944 | return true;
|
945 | }
|
946 | }
|
947 | } else if (this._usedInRuntime === undefined) {
|
948 | if (newValue !== UsageState.Unused && condition(UsageState.Unused)) {
|
949 | this._usedInRuntime = new Map();
|
950 | forEachRuntime(runtime, runtime =>
|
951 | this._usedInRuntime.set(runtime, newValue)
|
952 | );
|
953 | return true;
|
954 | }
|
955 | } else {
|
956 | let changed = false;
|
957 | forEachRuntime(runtime, runtime => {
|
958 |
|
959 | let oldValue = this._usedInRuntime.get(runtime);
|
960 | if (oldValue === undefined) oldValue = UsageState.Unused;
|
961 | if (newValue !== oldValue && condition(oldValue)) {
|
962 | if (newValue === UsageState.Unused) {
|
963 | this._usedInRuntime.delete(runtime);
|
964 | } else {
|
965 | this._usedInRuntime.set(runtime, newValue);
|
966 | }
|
967 | changed = true;
|
968 | }
|
969 | });
|
970 | if (changed) {
|
971 | if (this._usedInRuntime.size === 0) this._usedInRuntime = undefined;
|
972 | return true;
|
973 | }
|
974 | }
|
975 | return false;
|
976 | }
|
977 |
|
978 | |
979 |
|
980 |
|
981 |
|
982 |
|
983 | setUsed(newValue, runtime) {
|
984 | if (runtime === undefined) {
|
985 | if (this._globalUsed !== newValue) {
|
986 | this._globalUsed = newValue;
|
987 | return true;
|
988 | }
|
989 | } else if (this._usedInRuntime === undefined) {
|
990 | if (newValue !== UsageState.Unused) {
|
991 | this._usedInRuntime = new Map();
|
992 | forEachRuntime(runtime, runtime =>
|
993 | this._usedInRuntime.set(runtime, newValue)
|
994 | );
|
995 | return true;
|
996 | }
|
997 | } else {
|
998 | let changed = false;
|
999 | forEachRuntime(runtime, runtime => {
|
1000 |
|
1001 | let oldValue = this._usedInRuntime.get(runtime);
|
1002 | if (oldValue === undefined) oldValue = UsageState.Unused;
|
1003 | if (newValue !== oldValue) {
|
1004 | if (newValue === UsageState.Unused) {
|
1005 | this._usedInRuntime.delete(runtime);
|
1006 | } else {
|
1007 | this._usedInRuntime.set(runtime, newValue);
|
1008 | }
|
1009 | changed = true;
|
1010 | }
|
1011 | });
|
1012 | if (changed) {
|
1013 | if (this._usedInRuntime.size === 0) this._usedInRuntime = undefined;
|
1014 | return true;
|
1015 | }
|
1016 | }
|
1017 | return false;
|
1018 | }
|
1019 |
|
1020 | |
1021 |
|
1022 |
|
1023 |
|
1024 | unsetTarget(key) {
|
1025 | if (!this._target) return false;
|
1026 | return this._target.delete(key);
|
1027 | }
|
1028 |
|
1029 | |
1030 |
|
1031 |
|
1032 |
|
1033 |
|
1034 |
|
1035 | setTarget(key, connection, exportName) {
|
1036 | if (exportName) exportName = [...exportName];
|
1037 | if (!this._target) {
|
1038 | this._target = new Map();
|
1039 | this._target.set(
|
1040 | key,
|
1041 | connection ? { connection, export: exportName } : null
|
1042 | );
|
1043 | return true;
|
1044 | }
|
1045 | const oldTarget = this._target.get(key);
|
1046 | if (!oldTarget) {
|
1047 | if (oldTarget === null && !connection) return false;
|
1048 | this._target.set(
|
1049 | key,
|
1050 | connection ? { connection, export: exportName } : null
|
1051 | );
|
1052 | return true;
|
1053 | }
|
1054 | if (!connection) {
|
1055 | this._target.set(key, null);
|
1056 | return true;
|
1057 | }
|
1058 | if (
|
1059 | oldTarget.connection !== connection ||
|
1060 | (exportName
|
1061 | ? !oldTarget.export || !equals(oldTarget.export, exportName)
|
1062 | : oldTarget.export)
|
1063 | ) {
|
1064 | oldTarget.connection = connection;
|
1065 | oldTarget.export = exportName;
|
1066 | return true;
|
1067 | }
|
1068 | return false;
|
1069 | }
|
1070 |
|
1071 | |
1072 |
|
1073 |
|
1074 |
|
1075 | getUsed(runtime) {
|
1076 | if (!this._hasUseInRuntimeInfo) return UsageState.NoInfo;
|
1077 | if (this._globalUsed !== undefined) return this._globalUsed;
|
1078 | if (this._usedInRuntime === undefined) {
|
1079 | return UsageState.Unused;
|
1080 | } else if (typeof runtime === "string") {
|
1081 | const value = this._usedInRuntime.get(runtime);
|
1082 | return value === undefined ? UsageState.Unused : value;
|
1083 | } else if (runtime === undefined) {
|
1084 |
|
1085 | let max = UsageState.Unused;
|
1086 | for (const value of this._usedInRuntime.values()) {
|
1087 | if (value === UsageState.Used) {
|
1088 | return UsageState.Used;
|
1089 | }
|
1090 | if (max < value) max = value;
|
1091 | }
|
1092 | return max;
|
1093 | } else {
|
1094 |
|
1095 | let max = UsageState.Unused;
|
1096 | for (const item of runtime) {
|
1097 | const value = this._usedInRuntime.get(item);
|
1098 | if (value !== undefined) {
|
1099 | if (value === UsageState.Used) {
|
1100 | return UsageState.Used;
|
1101 | }
|
1102 | if (max < value) max = value;
|
1103 | }
|
1104 | }
|
1105 | return max;
|
1106 | }
|
1107 | }
|
1108 |
|
1109 | |
1110 |
|
1111 |
|
1112 |
|
1113 |
|
1114 |
|
1115 | getUsedName(fallbackName, runtime) {
|
1116 | if (this._hasUseInRuntimeInfo) {
|
1117 | if (this._globalUsed !== undefined) {
|
1118 | if (this._globalUsed === UsageState.Unused) return false;
|
1119 | } else {
|
1120 | if (this._usedInRuntime === undefined) return false;
|
1121 | if (typeof runtime === "string") {
|
1122 | if (!this._usedInRuntime.has(runtime)) {
|
1123 | return false;
|
1124 | }
|
1125 | } else if (runtime !== undefined) {
|
1126 | if (
|
1127 | Array.from(runtime).every(
|
1128 | runtime => !this._usedInRuntime.has(runtime)
|
1129 | )
|
1130 | ) {
|
1131 | return false;
|
1132 | }
|
1133 | }
|
1134 | }
|
1135 | }
|
1136 | if (this._usedName !== null) return this._usedName;
|
1137 | return this.name || fallbackName;
|
1138 | }
|
1139 |
|
1140 | |
1141 |
|
1142 |
|
1143 | hasUsedName() {
|
1144 | return this._usedName !== null;
|
1145 | }
|
1146 |
|
1147 | |
1148 |
|
1149 |
|
1150 |
|
1151 |
|
1152 | setUsedName(name) {
|
1153 | this._usedName = name;
|
1154 | }
|
1155 |
|
1156 | |
1157 |
|
1158 |
|
1159 |
|
1160 |
|
1161 | getTerminalBinding(moduleGraph, resolveTargetFilter = RETURNS_TRUE) {
|
1162 | if (this.terminalBinding) return this;
|
1163 | const target = this.getTarget(moduleGraph, resolveTargetFilter);
|
1164 | if (!target) return undefined;
|
1165 | const exportsInfo = moduleGraph.getExportsInfo(target.module);
|
1166 | if (!target.export) return exportsInfo;
|
1167 | return exportsInfo.getReadOnlyExportInfoRecursive(target.export);
|
1168 | }
|
1169 |
|
1170 | isReexport() {
|
1171 | return !this.terminalBinding && this._target && this._target.size > 0;
|
1172 | }
|
1173 |
|
1174 | |
1175 |
|
1176 |
|
1177 |
|
1178 |
|
1179 | findTarget(moduleGraph, validTargetModuleFilter) {
|
1180 | return this._findTarget(moduleGraph, validTargetModuleFilter, new Set());
|
1181 | }
|
1182 |
|
1183 | |
1184 |
|
1185 |
|
1186 |
|
1187 |
|
1188 |
|
1189 | _findTarget(moduleGraph, validTargetModuleFilter, alreadyVisited) {
|
1190 | if (!this._target || this._target.size === 0) return undefined;
|
1191 | let rawTarget = this._target.values().next().value;
|
1192 | if (!rawTarget) return undefined;
|
1193 |
|
1194 | let target = {
|
1195 | module: rawTarget.connection.module,
|
1196 | export: rawTarget.export
|
1197 | };
|
1198 | for (;;) {
|
1199 | if (validTargetModuleFilter(target.module)) return target;
|
1200 | const exportsInfo = moduleGraph.getExportsInfo(target.module);
|
1201 | const exportInfo = exportsInfo.getExportInfo(target.export[0]);
|
1202 | if (alreadyVisited.has(exportInfo)) return null;
|
1203 | const newTarget = exportInfo._findTarget(
|
1204 | moduleGraph,
|
1205 | validTargetModuleFilter,
|
1206 | alreadyVisited
|
1207 | );
|
1208 | if (!newTarget) return false;
|
1209 | if (target.export.length === 1) {
|
1210 | target = newTarget;
|
1211 | } else {
|
1212 | target = {
|
1213 | module: newTarget.module,
|
1214 | export: newTarget.export
|
1215 | ? newTarget.export.concat(target.export.slice(1))
|
1216 | : target.export.slice(1)
|
1217 | };
|
1218 | }
|
1219 | }
|
1220 | }
|
1221 |
|
1222 | |
1223 |
|
1224 |
|
1225 |
|
1226 |
|
1227 | getTarget(moduleGraph, resolveTargetFilter = RETURNS_TRUE) {
|
1228 | const result = this._getTarget(moduleGraph, resolveTargetFilter, undefined);
|
1229 | if (result === CIRCULAR) return undefined;
|
1230 | return result;
|
1231 | }
|
1232 |
|
1233 | |
1234 |
|
1235 |
|
1236 |
|
1237 |
|
1238 |
|
1239 | _getTarget(moduleGraph, resolveTargetFilter, alreadyVisited) {
|
1240 | |
1241 |
|
1242 |
|
1243 |
|
1244 |
|
1245 | const resolveTarget = (inputTarget, alreadyVisited) => {
|
1246 | if (!inputTarget) return null;
|
1247 | if (!inputTarget.export) {
|
1248 | return {
|
1249 | module: inputTarget.connection.module,
|
1250 | connection: inputTarget.connection,
|
1251 | export: undefined
|
1252 | };
|
1253 | }
|
1254 |
|
1255 | let target = {
|
1256 | module: inputTarget.connection.module,
|
1257 | connection: inputTarget.connection,
|
1258 | export: inputTarget.export
|
1259 | };
|
1260 | if (!resolveTargetFilter(target)) return target;
|
1261 | let alreadyVisitedOwned = false;
|
1262 | for (;;) {
|
1263 | const exportsInfo = moduleGraph.getExportsInfo(target.module);
|
1264 | const exportInfo = exportsInfo.getExportInfo(target.export[0]);
|
1265 | if (!exportInfo) return target;
|
1266 | if (alreadyVisited.has(exportInfo)) return CIRCULAR;
|
1267 | const newTarget = exportInfo._getTarget(
|
1268 | moduleGraph,
|
1269 | resolveTargetFilter,
|
1270 | alreadyVisited
|
1271 | );
|
1272 | if (newTarget === CIRCULAR) return CIRCULAR;
|
1273 | if (!newTarget) return target;
|
1274 | if (target.export.length === 1) {
|
1275 | target = newTarget;
|
1276 | if (!target.export) return target;
|
1277 | } else {
|
1278 | target = {
|
1279 | module: newTarget.module,
|
1280 | connection: newTarget.connection,
|
1281 | export: newTarget.export
|
1282 | ? newTarget.export.concat(target.export.slice(1))
|
1283 | : target.export.slice(1)
|
1284 | };
|
1285 | }
|
1286 | if (!resolveTargetFilter(target)) return target;
|
1287 | if (!alreadyVisitedOwned) {
|
1288 | alreadyVisited = new Set(alreadyVisited);
|
1289 | alreadyVisitedOwned = true;
|
1290 | }
|
1291 | alreadyVisited.add(exportInfo);
|
1292 | }
|
1293 | };
|
1294 |
|
1295 | if (!this._target || this._target.size === 0) return undefined;
|
1296 | if (alreadyVisited && alreadyVisited.has(this)) return CIRCULAR;
|
1297 | const newAlreadyVisited = new Set(alreadyVisited);
|
1298 | newAlreadyVisited.add(this);
|
1299 | const values = this._target.values();
|
1300 | const target = resolveTarget(values.next().value, newAlreadyVisited);
|
1301 | if (target === CIRCULAR) return CIRCULAR;
|
1302 | if (target === null) return undefined;
|
1303 | let result = values.next();
|
1304 | while (!result.done) {
|
1305 | const t = resolveTarget(result.value, newAlreadyVisited);
|
1306 | if (t === CIRCULAR) return CIRCULAR;
|
1307 | if (t === null) return undefined;
|
1308 | if (t.module !== target.module) return undefined;
|
1309 | if (!t.export !== !target.export) return undefined;
|
1310 | if (target.export && !equals(t.export, target.export)) return undefined;
|
1311 | result = values.next();
|
1312 | }
|
1313 | return target;
|
1314 | }
|
1315 |
|
1316 | |
1317 |
|
1318 |
|
1319 |
|
1320 |
|
1321 |
|
1322 |
|
1323 | moveTarget(moduleGraph, resolveTargetFilter, updateOriginalConnection) {
|
1324 | const target = this._getTarget(moduleGraph, resolveTargetFilter, undefined);
|
1325 | if (target === CIRCULAR) return undefined;
|
1326 | if (!target) return undefined;
|
1327 | const originalTarget = this._target.values().next().value;
|
1328 | if (
|
1329 | originalTarget.connection === target.connection &&
|
1330 | originalTarget.export === target.export
|
1331 | ) {
|
1332 | return undefined;
|
1333 | }
|
1334 | this._target.clear();
|
1335 | this._target.set(undefined, {
|
1336 | connection: updateOriginalConnection
|
1337 | ? updateOriginalConnection(target)
|
1338 | : target.connection,
|
1339 | export: target.export
|
1340 | });
|
1341 | return target;
|
1342 | }
|
1343 |
|
1344 | createNestedExportsInfo() {
|
1345 | if (this.exportsInfoOwned) return this.exportsInfo;
|
1346 | this.exportsInfoOwned = true;
|
1347 | const oldExportsInfo = this.exportsInfo;
|
1348 | this.exportsInfo = new ExportsInfo();
|
1349 | this.exportsInfo.setHasProvideInfo();
|
1350 | if (oldExportsInfo) {
|
1351 | this.exportsInfo.setRedirectNamedTo(oldExportsInfo);
|
1352 | }
|
1353 | return this.exportsInfo;
|
1354 | }
|
1355 |
|
1356 | getNestedExportsInfo() {
|
1357 | return this.exportsInfo;
|
1358 | }
|
1359 |
|
1360 | hasInfo(baseInfo, runtime) {
|
1361 | return (
|
1362 | (this._usedName && this._usedName !== this.name) ||
|
1363 | this.provided ||
|
1364 | this.terminalBinding ||
|
1365 | this.getUsed(runtime) !== baseInfo.getUsed(runtime)
|
1366 | );
|
1367 | }
|
1368 |
|
1369 | updateHash(hash, runtime) {
|
1370 | this._updateHash(hash, runtime, new Set());
|
1371 | }
|
1372 |
|
1373 | _updateHash(hash, runtime, alreadyVisitedExportsInfo) {
|
1374 | hash.update(`${this._usedName || this.name}`);
|
1375 | hash.update(`${this.getUsed(runtime)}`);
|
1376 | hash.update(`${this.provided}`);
|
1377 | hash.update(`${this.terminalBinding}`);
|
1378 | if (this.exportsInfo && !alreadyVisitedExportsInfo.has(this.exportsInfo)) {
|
1379 | this.exportsInfo._updateHash(hash, runtime, alreadyVisitedExportsInfo);
|
1380 | }
|
1381 | }
|
1382 |
|
1383 | getUsedInfo() {
|
1384 | if (this._globalUsed !== undefined) {
|
1385 | switch (this._globalUsed) {
|
1386 | case UsageState.Unused:
|
1387 | return "unused";
|
1388 | case UsageState.NoInfo:
|
1389 | return "no usage info";
|
1390 | case UsageState.Unknown:
|
1391 | return "maybe used (runtime-defined)";
|
1392 | case UsageState.Used:
|
1393 | return "used";
|
1394 | case UsageState.OnlyPropertiesUsed:
|
1395 | return "only properties used";
|
1396 | }
|
1397 | } else if (this._usedInRuntime !== undefined) {
|
1398 |
|
1399 | const map = new Map();
|
1400 | for (const [runtime, used] of this._usedInRuntime) {
|
1401 | const list = map.get(used);
|
1402 | if (list !== undefined) list.push(runtime);
|
1403 | else map.set(used, [runtime]);
|
1404 | }
|
1405 | const specificInfo = Array.from(map, ([used, runtimes]) => {
|
1406 | switch (used) {
|
1407 | case UsageState.NoInfo:
|
1408 | return `no usage info in ${runtimes.join(", ")}`;
|
1409 | case UsageState.Unknown:
|
1410 | return `maybe used in ${runtimes.join(", ")} (runtime-defined)`;
|
1411 | case UsageState.Used:
|
1412 | return `used in ${runtimes.join(", ")}`;
|
1413 | case UsageState.OnlyPropertiesUsed:
|
1414 | return `only properties used in ${runtimes.join(", ")}`;
|
1415 | }
|
1416 | });
|
1417 | if (specificInfo.length > 0) {
|
1418 | return specificInfo.join("; ");
|
1419 | }
|
1420 | }
|
1421 | return this._hasUseInRuntimeInfo ? "unused" : "no usage info";
|
1422 | }
|
1423 |
|
1424 | getProvidedInfo() {
|
1425 | switch (this.provided) {
|
1426 | case undefined:
|
1427 | return "no provided info";
|
1428 | case null:
|
1429 | return "maybe provided (runtime-defined)";
|
1430 | case true:
|
1431 | return "provided";
|
1432 | case false:
|
1433 | return "not provided";
|
1434 | }
|
1435 | }
|
1436 |
|
1437 | getRenameInfo() {
|
1438 | if (this._usedName !== null && this._usedName !== this.name) {
|
1439 | return `renamed to ${JSON.stringify(this._usedName).slice(1, -1)}`;
|
1440 | }
|
1441 | switch (this.canMangleProvide) {
|
1442 | case undefined:
|
1443 | switch (this.canMangleUse) {
|
1444 | case undefined:
|
1445 | return "missing provision and use info prevents renaming";
|
1446 | case false:
|
1447 | return "usage prevents renaming (no provision info)";
|
1448 | case true:
|
1449 | return "missing provision info prevents renaming";
|
1450 | }
|
1451 | break;
|
1452 | case true:
|
1453 | switch (this.canMangleUse) {
|
1454 | case undefined:
|
1455 | return "missing usage info prevents renaming";
|
1456 | case false:
|
1457 | return "usage prevents renaming";
|
1458 | case true:
|
1459 | return "could be renamed";
|
1460 | }
|
1461 | break;
|
1462 | case false:
|
1463 | switch (this.canMangleUse) {
|
1464 | case undefined:
|
1465 | return "provision prevents renaming (no use info)";
|
1466 | case false:
|
1467 | return "usage and provision prevents renaming";
|
1468 | case true:
|
1469 | return "provision prevents renaming";
|
1470 | }
|
1471 | break;
|
1472 | }
|
1473 | throw new Error(
|
1474 | `Unexpected flags for getRenameInfo ${this.canMangleProvide} ${this.canMangleUse}`
|
1475 | );
|
1476 | }
|
1477 | }
|
1478 |
|
1479 | module.exports = ExportsInfo;
|
1480 | module.exports.ExportInfo = ExportInfo;
|
1481 | module.exports.UsageState = UsageState;
|