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					131 lines
				
				6.2 KiB
			
		
		
			
		
	
	
					131 lines
				
				6.2 KiB
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											3 years ago
										 
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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.FEATURES = void 0;
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								exports.enableFeature = enableFeature;
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								exports.isLoose = isLoose;
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								exports.shouldTransform = shouldTransform;
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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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								  privateIn: 1 << 4,
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								  staticBlocks: 1 << 5
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								});
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								exports.FEATURES = FEATURES;
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								const featuresSameLoose = new Map([[FEATURES.fields, "@babel/plugin-proposal-class-properties"], [FEATURES.privateMethods, "@babel/plugin-proposal-private-methods"], [FEATURES.privateIn, "@babel/plugin-proposal-private-property-in-object"]]);
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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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								const looseLowPriorityKey = "@babel/plugin-class-features/looseLowPriorityKey/#__internal__@babel/preset-env__please-overwrite-loose-instead-of-throwing";
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								function enableFeature(file, feature, loose) {
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								  if (!hasFeature(file, feature) || canIgnoreLoose(file, feature)) {
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								    file.set(featuresKey, file.get(featuresKey) | feature);
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								    if (
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								    loose === "#__internal__@babel/preset-env__prefer-true-but-false-is-ok-if-it-prevents-an-error") {
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								      setLoose(file, feature, true);
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								      file.set(looseLowPriorityKey, file.get(looseLowPriorityKey) | feature);
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								    } else if (
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								    loose === "#__internal__@babel/preset-env__prefer-false-but-true-is-ok-if-it-prevents-an-error") {
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								      setLoose(file, feature, false);
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								      file.set(looseLowPriorityKey, file.get(looseLowPriorityKey) | feature);
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								    } else {
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								      setLoose(file, feature, loose);
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								    }
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								  }
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								  let resolvedLoose;
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								  let higherPriorityPluginName;
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								  for (const [mask, name] of featuresSameLoose) {
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								    if (!hasFeature(file, mask)) continue;
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								    const loose = isLoose(file, mask);
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								    if (canIgnoreLoose(file, mask)) {
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								      continue;
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								    } else if (resolvedLoose === !loose) {
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								      throw new Error("'loose' mode configuration must be the same for @babel/plugin-proposal-class-properties, " + "@babel/plugin-proposal-private-methods and " + "@babel/plugin-proposal-private-property-in-object (when they are enabled).");
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								    } else {
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								      resolvedLoose = loose;
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								      higherPriorityPluginName = name;
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								    }
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								  }
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								  if (resolvedLoose !== undefined) {
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								    for (const [mask, name] of featuresSameLoose) {
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								      if (hasFeature(file, mask) && isLoose(file, mask) !== resolvedLoose) {
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								        setLoose(file, mask, resolvedLoose);
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								        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 ${higherPriorityPluginName}.\nThe "loose" option must be the ` + `same for @babel/plugin-proposal-class-properties, @babel/plugin-proposal-private-methods ` + `and @babel/plugin-proposal-private-property-in-object (when they are enabled): you can ` + `silence this warning by explicitly adding\n` + `\t["${name}", { "loose": ${resolvedLoose} }]\n` + `to the "plugins" section of your Babel config.`);
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								      }
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								    }
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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 setLoose(file, feature, loose) {
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								  if (loose) file.set(looseKey, file.get(looseKey) | feature);else file.set(looseKey, file.get(looseKey) & ~feature);
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								  file.set(looseLowPriorityKey, file.get(looseLowPriorityKey) & ~feature);
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								}
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								function canIgnoreLoose(file, feature) {
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								  return !!(file.get(looseLowPriorityKey) & feature);
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								}
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								function shouldTransform(path, file) {
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								  let decoratorPath = null;
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								  let publicFieldPath = null;
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								  let privateFieldPath = null;
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								  let privateMethodPath = null;
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								  let staticBlockPath = null;
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								  if ((0, _decorators.hasOwnDecorators)(path.node)) {
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								    decoratorPath = path.get("decorators.0");
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								  }
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								  for (const el of path.get("body.body")) {
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								    if (!decoratorPath && (0, _decorators.hasOwnDecorators)(el.node)) {
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								      decoratorPath = el.get("decorators.0");
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								    }
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								    if (!publicFieldPath && el.isClassProperty()) {
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								      publicFieldPath = el;
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								    }
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								    if (!privateFieldPath && el.isClassPrivateProperty()) {
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								      privateFieldPath = el;
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								    }
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								    if (!privateMethodPath && el.isClassPrivateMethod != null && el.isClassPrivateMethod()) {
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								      privateMethodPath = el;
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								    }
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								    if (!staticBlockPath && el.isStaticBlock != null && el.isStaticBlock()) {
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								      staticBlockPath = el;
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								    }
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								  }
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								  if (decoratorPath && privateFieldPath) {
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								    throw privateFieldPath.buildCodeFrameError("Private fields in decorated classes are not supported yet.");
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								  }
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								  if (decoratorPath && privateMethodPath) {
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								    throw privateMethodPath.buildCodeFrameError("Private methods in decorated classes are not supported yet.");
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								  }
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								  if (decoratorPath && !hasFeature(file, FEATURES.decorators)) {
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								    throw path.buildCodeFrameError("Decorators are not enabled." + "\nIf you are using " + '["@babel/plugin-proposal-decorators", { "version": "legacy" }], ' + 'make sure it comes *before* "@babel/plugin-proposal-class-properties" ' + "and enable loose mode, like so:\n" + '\t["@babel/plugin-proposal-decorators", { "version": "legacy" }]\n' + '\t["@babel/plugin-proposal-class-properties", { "loose": true }]');
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								  }
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								  if (privateMethodPath && !hasFeature(file, FEATURES.privateMethods)) {
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								    throw privateMethodPath.buildCodeFrameError("Class private methods are not enabled. " + "Please add `@babel/plugin-proposal-private-methods` to your configuration.");
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								  }
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								  if ((publicFieldPath || privateFieldPath) && !hasFeature(file, FEATURES.fields) &&
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								  !hasFeature(file, FEATURES.privateMethods)) {
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								    throw path.buildCodeFrameError("Class fields are not enabled. " + "Please add `@babel/plugin-proposal-class-properties` to your configuration.");
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								  }
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								  if (staticBlockPath && !hasFeature(file, FEATURES.staticBlocks)) {
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								    throw path.buildCodeFrameError("Static class blocks are not enabled. " + "Please add `@babel/plugin-proposal-class-static-block` to your configuration.");
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								  }
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								  if (decoratorPath || privateMethodPath || staticBlockPath) {
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								    return true;
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								  }
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								  if ((publicFieldPath || privateFieldPath) && hasFeature(file, FEATURES.fields)) {
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								    return true;
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								  }
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								  return false;
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								}
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								//# sourceMappingURL=features.js.map
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