| "use strict"; |
| |
| const babel = require("@babel/core"); |
| |
| module.exports = function injectCaller(opts) { |
| if (!supportsCallerOption()) return opts; |
| return Object.assign({}, opts, { |
| caller: Object.assign({ |
| name: "babel-loader", |
| // Webpack >= 2 supports ESM and dynamic import. |
| supportsStaticESM: true, |
| supportsDynamicImport: true |
| }, opts.caller) |
| }); |
| }; // TODO: We can remove this eventually, I'm just adding it so that people have |
| // a little time to migrate to the newer RCs of @babel/core without getting |
| // hard-to-diagnose errors about unknown 'caller' options. |
| |
| |
| let supportsCallerOptionFlag = undefined; |
| |
| function supportsCallerOption() { |
| if (supportsCallerOptionFlag === undefined) { |
| try { |
| // Rather than try to match the Babel version, we just see if it throws |
| // when passed a 'caller' flag, and use that to decide if it is supported. |
| babel.loadPartialConfig({ |
| caller: undefined, |
| babelrc: false, |
| configFile: false |
| }); |
| supportsCallerOptionFlag = true; |
| } catch (err) { |
| supportsCallerOptionFlag = false; |
| } |
| } |
| |
| return supportsCallerOptionFlag; |
| } |