source: trip-planner-front/node_modules/babel-loader/lib/injectCaller.js

Last change on this file was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

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1"use strict";
2
3const babel = require("@babel/core");
4
5module.exports = function injectCaller(opts, target) {
6 if (!supportsCallerOption()) return opts;
7 return Object.assign({}, opts, {
8 caller: Object.assign({
9 name: "babel-loader",
10 // Provide plugins with insight into webpack target.
11 // https://github.com/babel/babel-loader/issues/787
12 target,
13 // Webpack >= 2 supports ESM and dynamic import.
14 supportsStaticESM: true,
15 supportsDynamicImport: true,
16 // Webpack 5 supports TLA behind a flag. We enable it by default
17 // for Babel, and then webpack will throw an error if the experimental
18 // flag isn't enabled.
19 supportsTopLevelAwait: true
20 }, opts.caller)
21 });
22}; // TODO: We can remove this eventually, I'm just adding it so that people have
23// a little time to migrate to the newer RCs of @babel/core without getting
24// hard-to-diagnose errors about unknown 'caller' options.
25
26
27let supportsCallerOptionFlag = undefined;
28
29function supportsCallerOption() {
30 if (supportsCallerOptionFlag === undefined) {
31 try {
32 // Rather than try to match the Babel version, we just see if it throws
33 // when passed a 'caller' flag, and use that to decide if it is supported.
34 babel.loadPartialConfig({
35 caller: undefined,
36 babelrc: false,
37 configFile: false
38 });
39 supportsCallerOptionFlag = true;
40 } catch (err) {
41 supportsCallerOptionFlag = false;
42 }
43 }
44
45 return supportsCallerOptionFlag;
46}
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