1 | "use strict";
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2 |
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3 | Object.defineProperty(exports, "__esModule", {
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4 | value: true
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5 | });
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6 | exports.isPluginRequired = isPluginRequired;
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7 | exports.default = exports.getPolyfillPlugins = exports.getModulesPluginNames = exports.transformIncludesAndExcludes = void 0;
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8 |
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9 | var _semver = require("semver");
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10 |
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11 | var _debug = require("./debug");
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12 |
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13 | var _getOptionSpecificExcludes = _interopRequireDefault(require("./get-option-specific-excludes"));
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14 |
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15 | var _filterItems = require("./filter-items");
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16 |
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17 | var _moduleTransformations = _interopRequireDefault(require("./module-transformations"));
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18 |
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19 | var _normalizeOptions = _interopRequireDefault(require("./normalize-options"));
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20 |
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21 | var _shippedProposals = require("../data/shipped-proposals");
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22 |
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23 | var _pluginsCompatData = require("./plugins-compat-data");
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24 |
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25 | var _overlappingPlugins = _interopRequireDefault(require("@babel/compat-data/overlapping-plugins"));
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26 |
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27 | var _regenerator = _interopRequireDefault(require("./polyfills/regenerator"));
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28 |
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29 | var _babelPolyfill = _interopRequireDefault(require("./polyfills/babel-polyfill"));
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30 |
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31 | var _babelPluginPolyfillCorejs = _interopRequireDefault(require("babel-plugin-polyfill-corejs2"));
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32 |
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33 | var _babelPluginPolyfillCorejs2 = _interopRequireDefault(require("babel-plugin-polyfill-corejs3"));
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34 |
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35 | var _babelPluginPolyfillRegenerator = _interopRequireDefault(require("babel-plugin-polyfill-regenerator"));
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36 |
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37 | var _helperCompilationTargets = _interopRequireWildcard(require("@babel/helper-compilation-targets"));
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38 |
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39 | var _availablePlugins = _interopRequireDefault(require("./available-plugins"));
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40 |
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41 | var _helperPluginUtils = require("@babel/helper-plugin-utils");
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42 |
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43 | function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
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44 |
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45 | function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
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46 |
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47 | function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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48 |
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49 | function isPluginRequired(targets, support) {
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50 | return (0, _helperCompilationTargets.isRequired)("fake-name", targets, {
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51 | compatData: {
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52 | "fake-name": support
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53 | }
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54 | });
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55 | }
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56 |
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57 | function filterStageFromList(list, stageList) {
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58 | return Object.keys(list).reduce((result, item) => {
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59 | if (!stageList.has(item)) {
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60 | result[item] = list[item];
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61 | }
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62 |
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63 | return result;
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64 | }, {});
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65 | }
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66 |
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67 | const pluginLists = {
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68 | withProposals: {
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69 | withoutBugfixes: _pluginsCompatData.plugins,
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70 | withBugfixes: Object.assign({}, _pluginsCompatData.plugins, _pluginsCompatData.pluginsBugfixes)
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71 | },
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72 | withoutProposals: {
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73 | withoutBugfixes: filterStageFromList(_pluginsCompatData.plugins, _shippedProposals.proposalPlugins),
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74 | withBugfixes: filterStageFromList(Object.assign({}, _pluginsCompatData.plugins, _pluginsCompatData.pluginsBugfixes), _shippedProposals.proposalPlugins)
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75 | }
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76 | };
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77 |
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78 | function getPluginList(proposals, bugfixes) {
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79 | if (proposals) {
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80 | if (bugfixes) return pluginLists.withProposals.withBugfixes;else return pluginLists.withProposals.withoutBugfixes;
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81 | } else {
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82 | if (bugfixes) return pluginLists.withoutProposals.withBugfixes;else return pluginLists.withoutProposals.withoutBugfixes;
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83 | }
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84 | }
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85 |
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86 | const getPlugin = pluginName => {
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87 | const plugin = _availablePlugins.default[pluginName];
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88 |
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89 | if (!plugin) {
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90 | throw new Error(`Could not find plugin "${pluginName}". Ensure there is an entry in ./available-plugins.js for it.`);
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91 | }
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92 |
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93 | return plugin;
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94 | };
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95 |
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96 | const transformIncludesAndExcludes = opts => {
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97 | return opts.reduce((result, opt) => {
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98 | const target = opt.match(/^(es|es6|es7|esnext|web)\./) ? "builtIns" : "plugins";
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99 | result[target].add(opt);
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100 | return result;
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101 | }, {
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102 | all: opts,
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103 | plugins: new Set(),
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104 | builtIns: new Set()
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105 | });
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106 | };
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107 |
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108 | exports.transformIncludesAndExcludes = transformIncludesAndExcludes;
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109 |
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110 | const getModulesPluginNames = ({
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111 | modules,
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112 | transformations,
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113 | shouldTransformESM,
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114 | shouldTransformDynamicImport,
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115 | shouldTransformExportNamespaceFrom,
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116 | shouldParseTopLevelAwait
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117 | }) => {
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118 | const modulesPluginNames = [];
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119 |
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120 | if (modules !== false && transformations[modules]) {
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121 | if (shouldTransformESM) {
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122 | modulesPluginNames.push(transformations[modules]);
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123 | }
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124 |
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125 | if (shouldTransformDynamicImport && shouldTransformESM && modules !== "umd") {
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126 | modulesPluginNames.push("proposal-dynamic-import");
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127 | } else {
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128 | if (shouldTransformDynamicImport) {
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129 | console.warn("Dynamic import can only be supported when transforming ES modules" + " to AMD, CommonJS or SystemJS. Only the parser plugin will be enabled.");
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130 | }
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131 |
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132 | modulesPluginNames.push("syntax-dynamic-import");
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133 | }
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134 | } else {
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135 | modulesPluginNames.push("syntax-dynamic-import");
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136 | }
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137 |
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138 | if (shouldTransformExportNamespaceFrom) {
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139 | modulesPluginNames.push("proposal-export-namespace-from");
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140 | } else {
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141 | modulesPluginNames.push("syntax-export-namespace-from");
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142 | }
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143 |
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144 | if (shouldParseTopLevelAwait) {
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145 | modulesPluginNames.push("syntax-top-level-await");
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146 | }
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147 |
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148 | return modulesPluginNames;
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149 | };
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150 |
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151 | exports.getModulesPluginNames = getModulesPluginNames;
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152 |
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153 | const getPolyfillPlugins = ({
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154 | useBuiltIns,
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155 | corejs,
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156 | polyfillTargets,
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157 | include,
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158 | exclude,
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159 | proposals,
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160 | shippedProposals,
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161 | regenerator,
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162 | debug
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163 | }) => {
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164 | const polyfillPlugins = [];
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165 |
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166 | if (useBuiltIns === "usage" || useBuiltIns === "entry") {
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167 | const pluginOptions = {
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168 | method: `${useBuiltIns}-global`,
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169 | version: corejs ? corejs.toString() : undefined,
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170 | targets: polyfillTargets,
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171 | include,
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172 | exclude,
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173 | proposals,
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174 | shippedProposals,
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175 | debug
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176 | };
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177 |
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178 | if (corejs) {
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179 | if (useBuiltIns === "usage") {
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180 | if (corejs.major === 2) {
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181 | polyfillPlugins.push([_babelPluginPolyfillCorejs.default, pluginOptions], [_babelPolyfill.default, {
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182 | usage: true
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183 | }]);
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184 | } else {
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185 | polyfillPlugins.push([_babelPluginPolyfillCorejs2.default, pluginOptions], [_babelPolyfill.default, {
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186 | usage: true,
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187 | deprecated: true
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188 | }]);
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189 | }
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190 |
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191 | if (regenerator) {
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192 | polyfillPlugins.push([_babelPluginPolyfillRegenerator.default, {
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193 | method: "usage-global",
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194 | debug
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195 | }]);
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196 | }
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197 | } else {
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198 | if (corejs.major === 2) {
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199 | polyfillPlugins.push([_babelPolyfill.default, {
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200 | regenerator
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201 | }], [_babelPluginPolyfillCorejs.default, pluginOptions]);
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202 | } else {
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203 | polyfillPlugins.push([_babelPluginPolyfillCorejs2.default, pluginOptions], [_babelPolyfill.default, {
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204 | deprecated: true
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205 | }]);
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206 |
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207 | if (!regenerator) {
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208 | polyfillPlugins.push([_regenerator.default, pluginOptions]);
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209 | }
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210 | }
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211 | }
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212 | }
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213 | }
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214 |
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215 | return polyfillPlugins;
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216 | };
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217 |
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218 | exports.getPolyfillPlugins = getPolyfillPlugins;
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219 |
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220 | function getLocalTargets(optionsTargets, ignoreBrowserslistConfig, configPath, browserslistEnv) {
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221 | if (optionsTargets != null && optionsTargets.esmodules && optionsTargets.browsers) {
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222 | console.warn(`
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223 | @babel/preset-env: esmodules and browsers targets have been specified together.
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224 | \`browsers\` target, \`${optionsTargets.browsers.toString()}\` will be ignored.
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225 | `);
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226 | }
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227 |
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228 | return (0, _helperCompilationTargets.default)(optionsTargets, {
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229 | ignoreBrowserslistConfig,
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230 | configPath,
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231 | browserslistEnv
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232 | });
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233 | }
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234 |
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235 | function supportsStaticESM(caller) {
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236 | return !!(caller != null && caller.supportsStaticESM);
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237 | }
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238 |
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239 | function supportsDynamicImport(caller) {
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240 | return !!(caller != null && caller.supportsDynamicImport);
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241 | }
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242 |
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243 | function supportsExportNamespaceFrom(caller) {
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244 | return !!(caller != null && caller.supportsExportNamespaceFrom);
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245 | }
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246 |
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247 | function supportsTopLevelAwait(caller) {
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248 | return !!(caller != null && caller.supportsTopLevelAwait);
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249 | }
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250 |
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251 | var _default = (0, _helperPluginUtils.declare)((api, opts) => {
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252 | api.assertVersion(7);
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253 | const babelTargets = api.targets();
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254 | const {
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255 | bugfixes,
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256 | configPath,
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257 | debug,
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258 | exclude: optionsExclude,
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259 | forceAllTransforms,
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260 | ignoreBrowserslistConfig,
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261 | include: optionsInclude,
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262 | loose,
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263 | modules,
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264 | shippedProposals,
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265 | spec,
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266 | targets: optionsTargets,
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267 | useBuiltIns,
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268 | corejs: {
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269 | version: corejs,
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270 | proposals
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271 | },
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272 | browserslistEnv
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273 | } = (0, _normalizeOptions.default)(opts);
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274 | let targets = babelTargets;
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275 |
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276 | if ((0, _semver.lt)(api.version, "7.13.0") || opts.targets || opts.configPath || opts.browserslistEnv || opts.ignoreBrowserslistConfig) {
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277 | {
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278 | var hasUglifyTarget = false;
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279 |
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280 | if (optionsTargets != null && optionsTargets.uglify) {
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281 | hasUglifyTarget = true;
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282 | delete optionsTargets.uglify;
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283 | console.warn(`
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284 | The uglify target has been deprecated. Set the top level
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285 | option \`forceAllTransforms: true\` instead.
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286 | `);
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287 | }
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288 | }
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289 | targets = getLocalTargets(optionsTargets, ignoreBrowserslistConfig, configPath, browserslistEnv);
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290 | }
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291 |
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292 | const transformTargets = forceAllTransforms || hasUglifyTarget ? {} : targets;
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293 | const include = transformIncludesAndExcludes(optionsInclude);
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294 | const exclude = transformIncludesAndExcludes(optionsExclude);
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295 | const compatData = getPluginList(shippedProposals, bugfixes);
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296 | const shouldSkipExportNamespaceFrom = modules === "auto" && (api.caller == null ? void 0 : api.caller(supportsExportNamespaceFrom)) || modules === false && !(0, _helperCompilationTargets.isRequired)("proposal-export-namespace-from", transformTargets, {
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297 | compatData,
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298 | includes: include.plugins,
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299 | excludes: exclude.plugins
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300 | });
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301 | const modulesPluginNames = getModulesPluginNames({
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302 | modules,
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303 | transformations: _moduleTransformations.default,
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304 | shouldTransformESM: modules !== "auto" || !(api.caller != null && api.caller(supportsStaticESM)),
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305 | shouldTransformDynamicImport: modules !== "auto" || !(api.caller != null && api.caller(supportsDynamicImport)),
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306 | shouldTransformExportNamespaceFrom: !shouldSkipExportNamespaceFrom,
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307 | shouldParseTopLevelAwait: !api.caller || api.caller(supportsTopLevelAwait)
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308 | });
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309 | const pluginNames = (0, _helperCompilationTargets.filterItems)(compatData, include.plugins, exclude.plugins, transformTargets, modulesPluginNames, (0, _getOptionSpecificExcludes.default)({
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310 | loose
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311 | }), _shippedProposals.pluginSyntaxMap);
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312 | (0, _filterItems.removeUnnecessaryItems)(pluginNames, _overlappingPlugins.default);
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313 | const polyfillPlugins = getPolyfillPlugins({
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314 | useBuiltIns,
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315 | corejs,
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316 | polyfillTargets: targets,
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317 | include: include.builtIns,
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318 | exclude: exclude.builtIns,
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319 | proposals,
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320 | shippedProposals,
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321 | regenerator: pluginNames.has("transform-regenerator"),
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322 | debug
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323 | });
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324 | const pluginUseBuiltIns = useBuiltIns !== false;
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325 | const plugins = Array.from(pluginNames).map(pluginName => {
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326 | if (pluginName === "proposal-class-properties" || pluginName === "proposal-private-methods" || pluginName === "proposal-private-property-in-object") {
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327 | return [getPlugin(pluginName), {
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328 | loose: loose ? "#__internal__@babel/preset-env__prefer-true-but-false-is-ok-if-it-prevents-an-error" : "#__internal__@babel/preset-env__prefer-false-but-true-is-ok-if-it-prevents-an-error"
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329 | }];
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330 | }
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331 |
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332 | return [getPlugin(pluginName), {
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333 | spec,
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334 | loose,
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335 | useBuiltIns: pluginUseBuiltIns
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336 | }];
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337 | }).concat(polyfillPlugins);
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338 |
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339 | if (debug) {
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340 | console.log("@babel/preset-env: `DEBUG` option");
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341 | console.log("\nUsing targets:");
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342 | console.log(JSON.stringify((0, _helperCompilationTargets.prettifyTargets)(targets), null, 2));
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343 | console.log(`\nUsing modules transform: ${modules.toString()}`);
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344 | console.log("\nUsing plugins:");
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345 | pluginNames.forEach(pluginName => {
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346 | (0, _debug.logPluginOrPolyfill)(pluginName, targets, _pluginsCompatData.plugins);
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347 | });
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348 |
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349 | if (!useBuiltIns) {
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350 | console.log("\nUsing polyfills: No polyfills were added, since the `useBuiltIns` option was not set.");
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351 | }
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352 | }
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353 |
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354 | return {
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355 | plugins
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356 | };
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357 | });
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358 |
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359 | exports.default = _default; |
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