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