forked from zhurui/management
67 lines
2.5 KiB
JavaScript
67 lines
2.5 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.enableFeature = enableFeature;
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exports.isLoose = isLoose;
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exports.verifyUsedFeatures = verifyUsedFeatures;
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exports.FEATURES = void 0;
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var _decorators = require("./decorators");
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const FEATURES = Object.freeze({
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fields: 1 << 1,
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privateMethods: 1 << 2,
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decorators: 1 << 3
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});
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exports.FEATURES = FEATURES;
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const featuresKey = "@babel/plugin-class-features/featuresKey";
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const looseKey = "@babel/plugin-class-features/looseKey";
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function enableFeature(file, feature, loose) {
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if (!hasFeature(file, feature)) {
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file.set(featuresKey, file.get(featuresKey) | feature);
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if (loose) file.set(looseKey, file.get(looseKey) | feature);
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}
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}
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function hasFeature(file, feature) {
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return !!(file.get(featuresKey) & feature);
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}
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function isLoose(file, feature) {
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return !!(file.get(looseKey) & feature);
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}
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function verifyUsedFeatures(path, file) {
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if ((0, _decorators.hasOwnDecorators)(path.node)) {
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if (!hasFeature(file, FEATURES.decorators)) {
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throw path.buildCodeFrameError("Decorators are not enabled." + "\nIf you are using " + '["@babel/plugin-proposal-decorators", { "legacy": true }], ' + 'make sure it comes *before* "@babel/plugin-proposal-class-properties" ' + "and enable loose mode, like so:\n" + '\t["@babel/plugin-proposal-decorators", { "legacy": true }]\n' + '\t["@babel/plugin-proposal-class-properties", { "loose": true }]');
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}
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if (path.isPrivate()) {
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throw path.buildCodeFrameError(`Private ${path.isClassMethod() ? "methods" : "fields"} in decorated classes are not supported yet.`);
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}
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}
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if (path.isPrivate() && path.isMethod()) {
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if (!hasFeature(file, FEATURES.privateMethods)) {
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throw path.buildCodeFrameError("Class private methods are not enabled.");
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}
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if (path.node.static && path.node.kind !== "method") {
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throw path.buildCodeFrameError("@babel/plugin-class-features doesn't support class static private accessors yet.");
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}
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}
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if (hasFeature(file, FEATURES.privateMethods) && hasFeature(file, FEATURES.fields) && isLoose(file, FEATURES.privateMethods) !== isLoose(file, FEATURES.fields)) {
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throw path.buildCodeFrameError("'loose' mode configuration must be the same for both @babel/plugin-proposal-class-properties " + "and @babel/plugin-proposal-private-methods");
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}
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if (path.isProperty()) {
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if (!hasFeature(file, FEATURES.fields)) {
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throw path.buildCodeFrameError("Class fields are not enabled.");
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}
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}
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}
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