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							122 lines
						
					
					
						
							5.2 KiB
						
					
					
				
			
		
		
	
	
							122 lines
						
					
					
						
							5.2 KiB
						
					
					
				"use strict"; | 
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 | 
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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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 | 
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var _decorators = require("./decorators"); | 
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 | 
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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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 | 
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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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 | 
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    if (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 (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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 | 
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  let resolvedLoose; | 
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  let higherPriorityPluginName; | 
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 | 
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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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 | 
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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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 | 
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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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 | 
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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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 | 
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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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 | 
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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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 | 
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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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 | 
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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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 | 
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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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 | 
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  if (path.isClassPrivateMethod != null && path.isClassPrivateMethod()) { | 
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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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  } | 
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 | 
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  if (path.isPrivateName() && path.parentPath.isBinaryExpression({ | 
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    operator: "in", | 
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    left: path.node | 
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  })) { | 
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    if (!hasFeature(file, FEATURES.privateIn)) { | 
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      throw path.buildCodeFrameError("Private property in checks are not enabled."); | 
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    } | 
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  } | 
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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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  if (path.isStaticBlock != null && path.isStaticBlock()) { | 
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    if (!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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  } | 
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} |