| 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.FEATURES = void 0;
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| 7 | exports.enableFeature = enableFeature;
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| 8 | exports.isLoose = isLoose;
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| 9 | exports.shouldTransform = shouldTransform;
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| 10 | var _decorators = require("./decorators.js");
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| 11 | const FEATURES = exports.FEATURES = Object.freeze({
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| 12 | fields: 1 << 1,
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| 13 | privateMethods: 1 << 2,
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| 14 | decorators: 1 << 3,
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| 15 | privateIn: 1 << 4,
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| 16 | staticBlocks: 1 << 5
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| 17 | });
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| 18 | const featuresSameLoose = new Map([[FEATURES.fields, "@babel/plugin-transform-class-properties"], [FEATURES.privateMethods, "@babel/plugin-transform-private-methods"], [FEATURES.privateIn, "@babel/plugin-transform-private-property-in-object"]]);
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| 19 | const featuresKey = "@babel/plugin-class-features/featuresKey";
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| 20 | const looseKey = "@babel/plugin-class-features/looseKey";
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| 21 | var looseLowPriorityKey = "@babel/plugin-class-features/looseLowPriorityKey/#__internal__@babel/preset-env__please-overwrite-loose-instead-of-throwing";
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| 22 | var canIgnoreLoose = function (file, feature) {
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| 23 | return !!(file.get(looseLowPriorityKey) & feature);
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| 24 | };
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| 25 | function enableFeature(file, feature, loose) {
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| 26 | if (!hasFeature(file, feature) || canIgnoreLoose(file, feature)) {
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| 27 | file.set(featuresKey, file.get(featuresKey) | feature);
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| 28 | if (loose === "#__internal__@babel/preset-env__prefer-true-but-false-is-ok-if-it-prevents-an-error") {
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| 29 | setLoose(file, feature, true);
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| 30 | file.set(looseLowPriorityKey, file.get(looseLowPriorityKey) | feature);
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| 31 | } else if (loose === "#__internal__@babel/preset-env__prefer-false-but-true-is-ok-if-it-prevents-an-error") {
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| 32 | setLoose(file, feature, false);
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| 33 | file.set(looseLowPriorityKey, file.get(looseLowPriorityKey) | feature);
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| 34 | } else {
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| 35 | setLoose(file, feature, loose);
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| 36 | }
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| 37 | }
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| 38 | let resolvedLoose;
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| 39 | for (const [mask, name] of featuresSameLoose) {
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| 40 | if (!hasFeature(file, mask)) continue;
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| 41 | if (canIgnoreLoose(file, mask)) continue;
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| 42 | const loose = isLoose(file, mask);
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| 43 | if (resolvedLoose === !loose) {
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| 44 | throw new Error("'loose' mode configuration must be the same for @babel/plugin-transform-class-properties, " + "@babel/plugin-transform-private-methods and " + "@babel/plugin-transform-private-property-in-object (when they are enabled)." + "\n\n" + getBabelShowConfigForHint(file));
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| 45 | } else {
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| 46 | resolvedLoose = loose;
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| 47 | var higherPriorityPluginName = name;
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| 48 | }
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| 49 | }
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| 50 | if (resolvedLoose !== undefined) {
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| 51 | for (const [mask, name] of featuresSameLoose) {
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| 52 | if (hasFeature(file, mask) && isLoose(file, mask) !== resolvedLoose) {
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| 53 | setLoose(file, mask, resolvedLoose);
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| 54 | console.warn(`Though the "loose" option was set to "${!resolvedLoose}" in your @babel/preset-env ` + `config, it will not be used for ${name} since the "loose" mode option was set to ` + `"${resolvedLoose}" for ${higherPriorityPluginName}.\nThe "loose" option must be the ` + `same for @babel/plugin-transform-class-properties, @babel/plugin-transform-private-methods ` + `and @babel/plugin-transform-private-property-in-object (when they are enabled): you can ` + `silence this warning by explicitly adding\n` + `\t["${name}", { "loose": ${resolvedLoose} }]\n` + `to the "plugins" section of your Babel config.` + "\n\n" + getBabelShowConfigForHint(file));
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| 55 | }
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| 56 | }
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| 57 | }
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| 58 | }
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| 59 | function getBabelShowConfigForHint(file) {
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| 60 | let {
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| 61 | filename
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| 62 | } = file.opts;
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| 63 | if (!filename || filename === "unknown") {
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| 64 | filename = "[name of the input file]";
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| 65 | }
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| 66 | return `\
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| 67 | If you already set the same 'loose' mode for these plugins in your config, it's possible that they \
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| 68 | are enabled multiple times with different options.
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| 69 | You can re-run Babel with the BABEL_SHOW_CONFIG_FOR environment variable to show the loaded \
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| 70 | configuration:
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| 71 | \tnpx cross-env BABEL_SHOW_CONFIG_FOR=${filename} <your build command>
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| 72 | See https://babeljs.io/docs/configuration#print-effective-configs for more info.`;
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| 73 | }
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| 74 | function hasFeature(file, feature) {
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| 75 | return !!(file.get(featuresKey) & feature);
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| 76 | }
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| 77 | function isLoose(file, feature) {
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| 78 | return !!(file.get(looseKey) & feature);
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| 79 | }
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| 80 | function setLoose(file, feature, loose) {
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| 81 | if (loose) file.set(looseKey, file.get(looseKey) | feature);else file.set(looseKey, file.get(looseKey) & ~feature);
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| 82 | file.set(looseLowPriorityKey, file.get(looseLowPriorityKey) & ~feature);
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| 83 | }
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| 84 | function shouldTransform(path, file) {
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| 85 | let decoratorPath = null;
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| 86 | let publicFieldPath = null;
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| 87 | let privateFieldPath = null;
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| 88 | let privateMethodPath = null;
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| 89 | let staticBlockPath = null;
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| 90 | if ((0, _decorators.hasOwnDecorators)(path.node)) {
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| 91 | decoratorPath = path.get("decorators.0");
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| 92 | }
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| 93 | for (const el of path.get("body.body")) {
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| 94 | if (!decoratorPath && (0, _decorators.hasOwnDecorators)(el.node)) {
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| 95 | decoratorPath = el.get("decorators.0");
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| 96 | }
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| 97 | if (!publicFieldPath && el.isClassProperty()) {
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| 98 | publicFieldPath = el;
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| 99 | }
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| 100 | if (!privateFieldPath && el.isClassPrivateProperty()) {
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| 101 | privateFieldPath = el;
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| 102 | }
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| 103 | if (!privateMethodPath && el.isClassPrivateMethod != null && el.isClassPrivateMethod()) {
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| 104 | privateMethodPath = el;
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| 105 | }
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| 106 | if (!staticBlockPath && el.isStaticBlock != null && el.isStaticBlock()) {
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| 107 | staticBlockPath = el;
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| 108 | }
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| 109 | }
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| 110 | if (decoratorPath && privateFieldPath) {
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| 111 | throw privateFieldPath.buildCodeFrameError("Private fields in decorated classes are not supported yet.");
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| 112 | }
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| 113 | if (decoratorPath && privateMethodPath) {
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| 114 | throw privateMethodPath.buildCodeFrameError("Private methods in decorated classes are not supported yet.");
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| 115 | }
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| 116 | if (decoratorPath && !hasFeature(file, FEATURES.decorators)) {
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| 117 | throw path.buildCodeFrameError("Decorators are not enabled." + "\nIf you are using " + '["@babel/plugin-proposal-decorators", { "version": "legacy" }], ' + 'make sure it comes *before* "@babel/plugin-transform-class-properties" ' + "and enable loose mode, like so:\n" + '\t["@babel/plugin-proposal-decorators", { "version": "legacy" }]\n' + '\t["@babel/plugin-transform-class-properties", { "loose": true }]');
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| 118 | }
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| 119 | if (privateMethodPath && !hasFeature(file, FEATURES.privateMethods)) {
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| 120 | throw privateMethodPath.buildCodeFrameError("Class private methods are not enabled. " + "Please add `@babel/plugin-transform-private-methods` to your configuration.");
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| 121 | }
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| 122 | if ((publicFieldPath || privateFieldPath) && !hasFeature(file, FEATURES.fields) && !hasFeature(file, FEATURES.privateMethods)) {
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| 123 | throw path.buildCodeFrameError("Class fields are not enabled. " + "Please add `@babel/plugin-transform-class-properties` to your configuration.");
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| 124 | }
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| 125 | if (staticBlockPath && !hasFeature(file, FEATURES.staticBlocks)) {
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| 126 | throw path.buildCodeFrameError("Static class blocks are not enabled. " + "Please add `@babel/plugin-transform-class-static-block` to your configuration.");
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| 127 | }
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| 128 | if (decoratorPath || privateMethodPath || staticBlockPath) {
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| 129 | return true;
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| 130 | }
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| 131 | if ((publicFieldPath || privateFieldPath) && hasFeature(file, FEATURES.fields)) {
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| 132 | return true;
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| 133 | }
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| 134 | return false;
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| 135 | }
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| 136 |
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| 137 | //# sourceMappingURL=features.js.map
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