| b69ab31 | | | 1 | /** |
| b69ab31 | | | 2 | * Copyright (c) Meta Platforms, Inc. and affiliates. |
| b69ab31 | | | 3 | * |
| b69ab31 | | | 4 | * This source code is licensed under the MIT license found in the |
| b69ab31 | | | 5 | * LICENSE file in the root directory of this source tree. |
| b69ab31 | | | 6 | */ |
| b69ab31 | | | 7 | |
| b69ab31 | | | 8 | const {default: tsJest} = require('ts-jest'); |
| b69ab31 | | | 9 | |
| b69ab31 | | | 10 | const transformer = tsJest.createTransformer({diagnostics: false}); |
| b69ab31 | | | 11 | |
| b69ab31 | | | 12 | /** |
| b69ab31 | | | 13 | * Replace 'import.meta.hot' with 'undefined' to make Jest happy. |
| b69ab31 | | | 14 | * Replace 'import.meta.url' with a require filename to enable WebWorkers. |
| b69ab31 | | | 15 | * Then delegates to the ts-jest transformer. |
| b69ab31 | | | 16 | * |
| b69ab31 | | | 17 | * For simplicity, we just do a naive string replace without complex parsing. |
| b69ab31 | | | 18 | */ |
| b69ab31 | | | 19 | function process(sourceText, path, options) { |
| b69ab31 | | | 20 | const newSourceText = sourceText |
| b69ab31 | | | 21 | .replace(/import\.meta\.hot/g, 'undefined') |
| b69ab31 | | | 22 | .replace(/import\.meta\.url/g, `require('url').pathToFileURL(__filename).toString()`); |
| b69ab31 | | | 23 | return transformer.process(newSourceText, path, options); |
| b69ab31 | | | 24 | } |
| b69ab31 | | | 25 | |
| b69ab31 | | | 26 | module.exports = {process}; |