How to use @babel/core

tiny-import.js

GitHub: imcuttle/babel-plugin-tiny-import

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                return obj.self;
            }

            return t.VariableDeclarator(
                t.identifier(obj.local),
                !ret.ref ? callExpression : t.memberExpression(callExpression, t.identifier(ret.ref)),
            );
        }),
    );
}

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tiny-import.js

GitHub: imcuttle/babel-plugin-tiny-import

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path.replaceWithMultiple(
    list.map(function (obj) {
        var ret = moduleMapper(obj.imported, moduleName);

        var callExpression = t.callExpression(
            node.init.callee,
            [t.stringLiteral(typeof ret === 'string' ? ret : ret ? ret.moduleName : moduleName)].concat(
                restArguments,
            ),

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tiny-import.js

GitHub: imcuttle/babel-plugin-tiny-import

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    if (!ret) {
        return obj.self;
    }

    return t.VariableDeclarator(
        t.identifier(obj.local),
        !ret.ref ? callExpression : t.memberExpression(callExpression, t.identifier(ret.ref)),
    );
}),

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babel-watch.js

GitHub: kmagiera/babel-watch

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  }
  return false;
}


function compile(filename, callback) {
  const opts = new babel.OptionManager().init({ filename, ignore, only, configFile, rootMode });


  // If opts is not present, the file is ignored, either by explicit input into
  // babel-watch or by `.babelignore`.
  if (!opts) {

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pbjsGlobals.js

GitHub: prebid/Prebid.js

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      path.replaceWith(
        t.StringLiteral(replace[name])
      );
    } else {
      path.replaceWith(
        t.Identifier(replace[name].toString())
      );
    }
  }
});

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pbjsGlobals.js

GitHub: prebid/Prebid.js

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Identifier(path) {
  Object.keys(replace).forEach(name => {
    if (path.node.name === name) {
      if (identifierToStringLiteral.includes(name)) {
        path.replaceWith(
          t.StringLiteral(replace[name])
        );
      } else {
        path.replaceWith(
          t.Identifier(replace[name].toString())

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parse-runtime.js

GitHub: symfony/webpack-encore

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}

const partialConfig = babel.loadPartialConfig({
    /*
     * There are two types of babel configuration:
     * - project-wide configuration in babel.config.* files
     * - file-relative configuration in .babelrc.* files
     *   or package.json files with a "babel" key
     *
     * To detect the file-relative configuration we need

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babel_parse_decorator.mjs

GitHub: jsenv/importmap-node-module

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  console.log(ast)
}


// try with loading config file
{
  const options = await loadOptionsAsync({
    root: urlToFileSystemPath(directoryUrl),
  })
  const ast = parser.parse(fileText, {
    ...options,

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babel.js

GitHub: JHawkley/resolve-imports-loader

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/** The domains for each type of input specifier. */
const domains = {
    [$.import]: {
        declaration: types.importDeclaration,
        defaultSpecifier: (local) =>
            types.importDefaultSpecifier(types.identifier(local)),
        namespaceSpecifier: (local) =>
            types.importNamespaceSpecifier(types.identifier(local)),
        namedSpecifier: (local, exported) =>
            types.importSpecifier(

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babel.js

GitHub: JHawkley/resolve-imports-loader

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    defaultSpecifier: (local) =>
        types.importDefaultSpecifier(types.identifier(local)),
    namespaceSpecifier: (local) =>
        types.importNamespaceSpecifier(types.identifier(local)),
    namedSpecifier: (local, exported) =>
        types.importSpecifier(
            types.identifier(local),
            types.identifier(exported)
        )
},

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babel.js

GitHub: JHawkley/resolve-imports-loader

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[$.import]: {
    declaration: types.importDeclaration,
    defaultSpecifier: (local) =>
        types.importDefaultSpecifier(types.identifier(local)),
    namespaceSpecifier: (local) =>
        types.importNamespaceSpecifier(types.identifier(local)),
    namedSpecifier: (local, exported) =>
        types.importSpecifier(
            types.identifier(local),
            types.identifier(exported)

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check-data-table-row-key.js

GitHub: AngusFu/wemlion-frontend-conf

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// case 3: (row) => String(row.id);
if (t.isCallExpression(expression.body)) {
  if (
    expression.body.callee.name === 'String' &&
    expression.body.arguments.length === 1 &&
    t.isMemberExpression(expression.body.arguments[0])
  ) {
    const { object, property } = expression.body.arguments[0];

    if (object.name === rowName && t.isIdentifier(property)) {

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check-data-table-row-key.js

GitHub: AngusFu/wemlion-frontend-conf

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  return;
}

const rk = node.attributes.find(attr => {
  return (
    t.isJSXAttribute(attr) &&
    t.isJSXIdentifier(attr.name) &&
    attr.name.name === 'rowKey'
  );
});

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babel.js

GitHub: JHawkley/resolve-imports-loader

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    defaultSpecifier: (local) =>
        types.exportDefaultSpecifier(types.identifier(local)),
    namespaceSpecifier: (local, exported) =>
        types.exportNamespaceSpecifier(types.identifier(exported)),
    namedSpecifier: (local, exported) =>
        types.exportSpecifier(
            types.identifier(local),
            types.identifier(exported)
        )
}

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babel.js

GitHub: JHawkley/resolve-imports-loader

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declaration: (specifiers, source) =>
    types.exportNamedDeclaration(null, specifiers, source),
defaultSpecifier: (local) =>
    types.exportDefaultSpecifier(types.identifier(local)),
namespaceSpecifier: (local, exported) =>
    types.exportNamespaceSpecifier(types.identifier(exported)),
namedSpecifier: (local, exported) =>
    types.exportSpecifier(
        types.identifier(local),
        types.identifier(exported)

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babel.js

GitHub: JHawkley/resolve-imports-loader

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            types.identifier(exported)
        )
},
[$.export]: {
    declaration: (specifiers, source) =>
        types.exportNamedDeclaration(null, specifiers, source),
    defaultSpecifier: (local) =>
        types.exportDefaultSpecifier(types.identifier(local)),
    namespaceSpecifier: (local, exported) =>
        types.exportNamespaceSpecifier(types.identifier(exported)),

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babel.js

GitHub: JHawkley/resolve-imports-loader

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},
[$.export]: {
    declaration: (specifiers, source) =>
        types.exportNamedDeclaration(null, specifiers, source),
    defaultSpecifier: (local) =>
        types.exportDefaultSpecifier(types.identifier(local)),
    namespaceSpecifier: (local, exported) =>
        types.exportNamespaceSpecifier(types.identifier(exported)),
    namedSpecifier: (local, exported) =>
        types.exportSpecifier(

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tiny-import.js

GitHub: imcuttle/babel-plugin-tiny-import

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return t.importDeclaration(
    // [t.importSpecifier(t.identifier(local), t.identifier(imported))],
    [
        !ret.ref || ret.ref === 'default'
            ? t.ImportDefaultSpecifier(t.identifier(local))
            : t.ImportSpecifier(t.identifier(local), t.identifier(ret.ref)),
    ],
    t.stringLiteral(typeof ret === 'string' ? ret : ret.moduleName),
);

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tiny-import.js

GitHub: imcuttle/babel-plugin-tiny-import

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    return t.importDeclaration(
        // [t.importSpecifier(t.identifier(local), t.identifier(imported))],
        [
            !ret.ref || ret.ref === 'default'
                ? t.ImportDefaultSpecifier(t.identifier(local))
                : t.ImportSpecifier(t.identifier(local), t.identifier(ret.ref)),
        ],
        t.stringLiteral(typeof ret === 'string' ? ret : ret.moduleName),
    );
});

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tiny-import.js

GitHub: imcuttle/babel-plugin-tiny-import

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var localModule = localModules[path.node.name];

if (localModule) {
    if (grantParent) {
        if (t.isImportDeclaration(grantParent.node)
            || t.isVariableDeclaration(grantParent.node)
            || t.isVariableDeclarator(grantParent.node)
        ) {
            matchedNode = path.parentPath.node;
        } else if (

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babel-watch.js

GitHub: kmagiera/babel-watch

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const only = program.only;
const ignore = program.ignore;
const configFile = program.configFile ? path.resolve(cwd, program.configFile) : undefined;
const rootMode = program.rootMode;
// We always transpile the default babel extensions. The option only adds more.
const transpileExtensions = babel.DEFAULT_EXTENSIONS.concat(program.extensions.map((ext) => ext.trim()));
const debug = Boolean(program.debug || program.debugBrk || program.inspect || program.inspectBrk)
const restartTimeout = Number.isFinite(program.restartTimeout) ? program.restartTimeout : 2000;

const mainModule = program.args[0];

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check-data-table-row-key.js

GitHub: AngusFu/wemlion-frontend-conf

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  }
},

JSXOpeningElement(node) {
  if (
    t.isJSXIdentifier(node.name) === false ||
    node.name.name !== 'DataTable'
  ) {
    return;
  }

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tiny-import.js

GitHub: imcuttle/babel-plugin-tiny-import

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if (!ret) {
    ignoreMap[local] = true;
    return t.importDeclaration([selfNode], t.stringLiteral(moduleName));
}

return t.importDeclaration(
    // [t.importSpecifier(t.identifier(local), t.identifier(imported))],
    [
        !ret.ref || ret.ref === 'default'
            ? t.ImportDefaultSpecifier(t.identifier(local))

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tiny-import.js

GitHub: imcuttle/babel-plugin-tiny-import

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if (localModule) {
    if (grantParent) {
        if (t.isImportDeclaration(grantParent.node)
            || t.isVariableDeclaration(grantParent.node)
            || t.isVariableDeclarator(grantParent.node)
        ) {
            matchedNode = path.parentPath.node;
        } else if (
            t.isObjectPattern(grantParent.node)

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tiny-import.js

GitHub: imcuttle/babel-plugin-tiny-import

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    || t.isVariableDeclaration(grantParent.node)
    || t.isVariableDeclarator(grantParent.node)
) {
    matchedNode = path.parentPath.node;
} else if (
    t.isObjectPattern(grantParent.node)
    && t.isVariableDeclarator(grantParent.parentPath.node)
) {
    matchedNode = grantParent.parentPath.node;
}

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Webpack4%E6%89%93%E5%8C%85%E6%9C%BA%E5%88%B6%E5%8E%9F%E7%90%86%E8%A7%A3%E6%9E%90.md?plain=1

GitHub: LuckyWinty/blog

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        //保存所依赖的模块
        dependencies[node.source.value] = newFile
    }
})
//通过@babel/core和@babel/preset-env进行代码的转换
const {code} = babel.transformFromAst(ast, null, {
    presets: ["@babel/preset-env"]
})
return{
    filename,//该文件名

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collect-rule.js

GitHub: mpx-ecology/mpx-es-check

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  }
  return ''
}


function getBabelConfig () {
  const { plugins = [] } = babel.loadOptions()
  const partialConfig = babel.loadPartialConfig()
  const targets = getTargetByConfig(partialConfig) || browserslist.loadConfig({ path: process.cwd() })
  const { list = [] } = coreJsCompat({ targets })
  return {

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babel.js

GitHub: JHawkley/resolve-imports-loader

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switch (specifierType) {
    case $.default:
        return domain.declaration(
            [domain.defaultSpecifier(localName, exportedName)],
            types.stringLiteral(path)
        );

    case $.namespace:
        return domain.declaration(

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util.js

GitHub: ui5-community/ui5-ecosystem-showcase

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let partialConfig;
if (path.basename(configFile) === "package.json") {
	// for the package.json, we need to extract the babel config
	partialConfig = require(configFile);
	if (partialConfig.babel) {
		partialConfig = await babel.loadPartialConfigAsync(
			Object.assign({ filename: "src/dummy.js" }, partialConfig.babel)
		);
	} else {
		partialConfig = configFile = undefined;

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