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							358 lines
						
					
					
						
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							358 lines
						
					
					
						
							11 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.isPluginRequired = isPluginRequired; | 
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exports.default = exports.getPolyfillPlugins = exports.getModulesPluginNames = exports.transformIncludesAndExcludes = void 0; | 
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 | 
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var _semver = require("semver"); | 
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 | 
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var _debug = require("./debug"); | 
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 | 
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var _getOptionSpecificExcludes = require("./get-option-specific-excludes"); | 
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 | 
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var _filterItems = require("./filter-items"); | 
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 | 
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var _moduleTransformations = require("./module-transformations"); | 
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 | 
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var _normalizeOptions = require("./normalize-options"); | 
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 | 
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var _shippedProposals = require("../data/shipped-proposals"); | 
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 | 
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var _pluginsCompatData = require("./plugins-compat-data"); | 
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 | 
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var _overlappingPlugins = require("@babel/compat-data/overlapping-plugins"); | 
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 | 
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var _regenerator = require("./polyfills/regenerator"); | 
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 | 
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var _babelPolyfill = require("./polyfills/babel-polyfill"); | 
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 | 
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var _babelPluginPolyfillCorejs = require("babel-plugin-polyfill-corejs2"); | 
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 | 
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var _babelPluginPolyfillCorejs2 = require("babel-plugin-polyfill-corejs3"); | 
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 | 
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var _babelPluginPolyfillRegenerator = require("babel-plugin-polyfill-regenerator"); | 
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 | 
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var _helperCompilationTargets = require("@babel/helper-compilation-targets"); | 
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 | 
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var _availablePlugins = require("./available-plugins"); | 
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 | 
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var _helperPluginUtils = require("@babel/helper-plugin-utils"); | 
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 | 
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const pluginCoreJS2 = _babelPluginPolyfillCorejs.default || _babelPluginPolyfillCorejs; | 
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const pluginCoreJS3 = _babelPluginPolyfillCorejs2.default || _babelPluginPolyfillCorejs2; | 
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const pluginRegenerator = _babelPluginPolyfillRegenerator.default || _babelPluginPolyfillRegenerator; | 
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 | 
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function isPluginRequired(targets, support) { | 
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  return (0, _helperCompilationTargets.isRequired)("fake-name", targets, { | 
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    compatData: { | 
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      "fake-name": support | 
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    } | 
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  }); | 
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} | 
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 | 
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function filterStageFromList(list, stageList) { | 
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  return Object.keys(list).reduce((result, item) => { | 
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    if (!stageList.has(item)) { | 
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      result[item] = list[item]; | 
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    } | 
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 | 
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    return result; | 
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  }, {}); | 
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} | 
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 | 
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const pluginLists = { | 
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  withProposals: { | 
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    withoutBugfixes: _pluginsCompatData.plugins, | 
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    withBugfixes: Object.assign({}, _pluginsCompatData.plugins, _pluginsCompatData.pluginsBugfixes) | 
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  }, | 
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  withoutProposals: { | 
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    withoutBugfixes: filterStageFromList(_pluginsCompatData.plugins, _shippedProposals.proposalPlugins), | 
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    withBugfixes: filterStageFromList(Object.assign({}, _pluginsCompatData.plugins, _pluginsCompatData.pluginsBugfixes), _shippedProposals.proposalPlugins) | 
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  } | 
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}; | 
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 | 
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function getPluginList(proposals, bugfixes) { | 
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  if (proposals) { | 
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    if (bugfixes) return pluginLists.withProposals.withBugfixes;else return pluginLists.withProposals.withoutBugfixes; | 
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  } else { | 
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    if (bugfixes) return pluginLists.withoutProposals.withBugfixes;else return pluginLists.withoutProposals.withoutBugfixes; | 
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  } | 
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} | 
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 | 
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const getPlugin = pluginName => { | 
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  const plugin = _availablePlugins.default[pluginName](); | 
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 | 
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  if (!plugin) { | 
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    throw new Error(`Could not find plugin "${pluginName}". Ensure there is an entry in ./available-plugins.js for it.`); | 
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  } | 
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 | 
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  return plugin; | 
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}; | 
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 | 
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const transformIncludesAndExcludes = opts => { | 
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  return opts.reduce((result, opt) => { | 
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    const target = opt.match(/^(es|es6|es7|esnext|web)\./) ? "builtIns" : "plugins"; | 
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    result[target].add(opt); | 
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    return result; | 
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  }, { | 
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    all: opts, | 
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    plugins: new Set(), | 
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    builtIns: new Set() | 
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  }); | 
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}; | 
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 | 
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exports.transformIncludesAndExcludes = transformIncludesAndExcludes; | 
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 | 
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const getModulesPluginNames = ({ | 
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  modules, | 
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  transformations, | 
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  shouldTransformESM, | 
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  shouldTransformDynamicImport, | 
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  shouldTransformExportNamespaceFrom, | 
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  shouldParseTopLevelAwait | 
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}) => { | 
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  const modulesPluginNames = []; | 
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 | 
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  if (modules !== false && transformations[modules]) { | 
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    if (shouldTransformESM) { | 
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      modulesPluginNames.push(transformations[modules]); | 
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    } | 
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 | 
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    if (shouldTransformDynamicImport && shouldTransformESM && modules !== "umd") { | 
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      modulesPluginNames.push("proposal-dynamic-import"); | 
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    } else { | 
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      if (shouldTransformDynamicImport) { | 
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        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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      } | 
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 | 
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      modulesPluginNames.push("syntax-dynamic-import"); | 
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    } | 
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  } else { | 
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    modulesPluginNames.push("syntax-dynamic-import"); | 
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  } | 
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 | 
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  if (shouldTransformExportNamespaceFrom) { | 
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    modulesPluginNames.push("proposal-export-namespace-from"); | 
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  } else { | 
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    modulesPluginNames.push("syntax-export-namespace-from"); | 
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  } | 
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 | 
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  if (shouldParseTopLevelAwait) { | 
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    modulesPluginNames.push("syntax-top-level-await"); | 
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  } | 
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 | 
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  return modulesPluginNames; | 
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}; | 
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 | 
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exports.getModulesPluginNames = getModulesPluginNames; | 
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 | 
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const getPolyfillPlugins = ({ | 
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  useBuiltIns, | 
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  corejs, | 
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  polyfillTargets, | 
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  include, | 
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  exclude, | 
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  proposals, | 
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  shippedProposals, | 
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  regenerator, | 
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  debug | 
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}) => { | 
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  const polyfillPlugins = []; | 
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 | 
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  if (useBuiltIns === "usage" || useBuiltIns === "entry") { | 
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    const pluginOptions = { | 
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      method: `${useBuiltIns}-global`, | 
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      version: corejs ? corejs.toString() : undefined, | 
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      targets: polyfillTargets, | 
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      include, | 
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      exclude, | 
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      proposals, | 
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      shippedProposals, | 
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      debug | 
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    }; | 
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 | 
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    if (corejs) { | 
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      if (useBuiltIns === "usage") { | 
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        if (corejs.major === 2) { | 
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          polyfillPlugins.push([pluginCoreJS2, pluginOptions], [_babelPolyfill.default, { | 
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            usage: true | 
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          }]); | 
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        } else { | 
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          polyfillPlugins.push([pluginCoreJS3, pluginOptions], [_babelPolyfill.default, { | 
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            usage: true, | 
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            deprecated: true | 
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          }]); | 
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        } | 
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 | 
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        if (regenerator) { | 
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          polyfillPlugins.push([pluginRegenerator, { | 
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            method: "usage-global", | 
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            debug | 
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          }]); | 
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        } | 
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      } else { | 
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        if (corejs.major === 2) { | 
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          polyfillPlugins.push([_babelPolyfill.default, { | 
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            regenerator | 
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          }], [pluginCoreJS2, pluginOptions]); | 
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        } else { | 
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          polyfillPlugins.push([pluginCoreJS3, pluginOptions], [_babelPolyfill.default, { | 
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            deprecated: true | 
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          }]); | 
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 | 
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          if (!regenerator) { | 
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            polyfillPlugins.push([_regenerator.default, pluginOptions]); | 
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          } | 
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        } | 
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      } | 
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    } | 
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  } | 
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 | 
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  return polyfillPlugins; | 
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}; | 
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 | 
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exports.getPolyfillPlugins = getPolyfillPlugins; | 
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 | 
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function getLocalTargets(optionsTargets, ignoreBrowserslistConfig, configPath, browserslistEnv) { | 
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  if (optionsTargets != null && optionsTargets.esmodules && optionsTargets.browsers) { | 
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    console.warn(` | 
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@babel/preset-env: esmodules and browsers targets have been specified together. | 
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\`browsers\` target, \`${optionsTargets.browsers.toString()}\` will be ignored. | 
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`); | 
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  } | 
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 | 
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  return (0, _helperCompilationTargets.default)(optionsTargets, { | 
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    ignoreBrowserslistConfig, | 
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    configPath, | 
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    browserslistEnv | 
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  }); | 
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} | 
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 | 
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function supportsStaticESM(caller) { | 
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  return !!(caller != null && caller.supportsStaticESM); | 
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} | 
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 | 
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function supportsDynamicImport(caller) { | 
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  return !!(caller != null && caller.supportsDynamicImport); | 
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} | 
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 | 
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function supportsExportNamespaceFrom(caller) { | 
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  return !!(caller != null && caller.supportsExportNamespaceFrom); | 
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} | 
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 | 
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function supportsTopLevelAwait(caller) { | 
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  return !!(caller != null && caller.supportsTopLevelAwait); | 
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} | 
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 | 
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var _default = (0, _helperPluginUtils.declare)((api, opts) => { | 
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  api.assertVersion(7); | 
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  const babelTargets = api.targets(); | 
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  const { | 
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    bugfixes, | 
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    configPath, | 
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    debug, | 
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    exclude: optionsExclude, | 
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    forceAllTransforms, | 
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    ignoreBrowserslistConfig, | 
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    include: optionsInclude, | 
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    loose, | 
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    modules, | 
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    shippedProposals, | 
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    spec, | 
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    targets: optionsTargets, | 
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    useBuiltIns, | 
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    corejs: { | 
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      version: corejs, | 
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      proposals | 
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    }, | 
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    browserslistEnv | 
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  } = (0, _normalizeOptions.default)(opts); | 
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  let targets = babelTargets; | 
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 | 
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  if ((0, _semver.lt)(api.version, "7.13.0") || opts.targets || opts.configPath || opts.browserslistEnv || opts.ignoreBrowserslistConfig) { | 
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    { | 
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      var hasUglifyTarget = false; | 
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 | 
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      if (optionsTargets != null && optionsTargets.uglify) { | 
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        hasUglifyTarget = true; | 
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        delete optionsTargets.uglify; | 
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        console.warn(` | 
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The uglify target has been deprecated. Set the top level | 
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option \`forceAllTransforms: true\` instead. | 
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`); | 
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      } | 
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    } | 
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    targets = getLocalTargets(optionsTargets, ignoreBrowserslistConfig, configPath, browserslistEnv); | 
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  } | 
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 | 
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  const transformTargets = forceAllTransforms || hasUglifyTarget ? {} : targets; | 
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  const include = transformIncludesAndExcludes(optionsInclude); | 
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  const exclude = transformIncludesAndExcludes(optionsExclude); | 
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  const compatData = getPluginList(shippedProposals, bugfixes); | 
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  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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    compatData, | 
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    includes: include.plugins, | 
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    excludes: exclude.plugins | 
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  }); | 
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  const modulesPluginNames = getModulesPluginNames({ | 
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    modules, | 
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    transformations: _moduleTransformations.default, | 
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    shouldTransformESM: modules !== "auto" || !(api.caller != null && api.caller(supportsStaticESM)), | 
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    shouldTransformDynamicImport: modules !== "auto" || !(api.caller != null && api.caller(supportsDynamicImport)), | 
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    shouldTransformExportNamespaceFrom: !shouldSkipExportNamespaceFrom, | 
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    shouldParseTopLevelAwait: !api.caller || api.caller(supportsTopLevelAwait) | 
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  }); | 
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  const pluginNames = (0, _helperCompilationTargets.filterItems)(compatData, include.plugins, exclude.plugins, transformTargets, modulesPluginNames, (0, _getOptionSpecificExcludes.default)({ | 
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    loose | 
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  }), _shippedProposals.pluginSyntaxMap); | 
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  (0, _filterItems.removeUnnecessaryItems)(pluginNames, _overlappingPlugins); | 
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  (0, _filterItems.removeUnsupportedItems)(pluginNames, api.version); | 
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  const polyfillPlugins = getPolyfillPlugins({ | 
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    useBuiltIns, | 
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    corejs, | 
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    polyfillTargets: targets, | 
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    include: include.builtIns, | 
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    exclude: exclude.builtIns, | 
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    proposals, | 
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    shippedProposals, | 
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    regenerator: pluginNames.has("transform-regenerator"), | 
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    debug | 
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  }); | 
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  const pluginUseBuiltIns = useBuiltIns !== false; | 
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  const plugins = Array.from(pluginNames).map(pluginName => { | 
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    if (pluginName === "proposal-class-properties" || pluginName === "proposal-private-methods" || pluginName === "proposal-private-property-in-object") { | 
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      return [getPlugin(pluginName), { | 
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        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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      }]; | 
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    } | 
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 | 
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    return [getPlugin(pluginName), { | 
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      spec, | 
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      loose, | 
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      useBuiltIns: pluginUseBuiltIns | 
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    }]; | 
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  }).concat(polyfillPlugins); | 
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 | 
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  if (debug) { | 
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    console.log("@babel/preset-env: `DEBUG` option"); | 
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    console.log("\nUsing targets:"); | 
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    console.log(JSON.stringify((0, _helperCompilationTargets.prettifyTargets)(targets), null, 2)); | 
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    console.log(`\nUsing modules transform: ${modules.toString()}`); | 
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    console.log("\nUsing plugins:"); | 
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    pluginNames.forEach(pluginName => { | 
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      (0, _debug.logPlugin)(pluginName, targets, compatData); | 
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    }); | 
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 | 
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    if (!useBuiltIns) { | 
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      console.log("\nUsing polyfills: No polyfills were added, since the `useBuiltIns` option was not set."); | 
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    } | 
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  } | 
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 | 
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  return { | 
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    plugins | 
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  }; | 
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}); | 
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 | 
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exports.default = _default; |