diff options
| -rw-r--r-- | src/crypto/emscLoader.js | 35 |
1 files changed, 27 insertions, 8 deletions
diff --git a/src/crypto/emscLoader.js b/src/crypto/emscLoader.js index 723b8ae36..eebe20c02 100644 --- a/src/crypto/emscLoader.js +++ b/src/crypto/emscLoader.js @@ -17,22 +17,41 @@ // @ts-nocheck + +/** + * This module loads the emscripten library, and is written in unchecked + * JavaScript since it needs to do environment detection and dynamically select + * the right way to load the library. + */ + /** * Load the taler emscripten lib. * - * If in a WebWorker, importScripts is used. Inside a browser, - * the module must be globally available. + * If in a WebWorker, importScripts is used. Inside a browser, the module must + * be globally available. Inside node, require is used. */ -export default function getLib() { - if (window.TalerEmscriptenLib) { - return TalerEmscriptenLib; - } - if (importScripts) { +export function getLib() { + if (typeof importScripts !== "undefined") { importScripts('/src/emscripten/taler-emscripten-lib.js') if (TalerEmscriptenLib) { throw Error("can't import TalerEmscriptenLib"); } return TalerEmscriptenLib } - throw Error("Can't find TalerEmscriptenLib."); + + if (typeof require !== "undefined") { + // Make sure that TypeScript doesn't try + // to check the taler-emscripten-lib. + const fn = require; + // Assume that the code is run from the build/ directory. + return fn("../../../emscripten/taler-emscripten-lib.js"); + } + + if (typeof window !== "undefined") { + if (window.TalerEmscriptenLib) { + return TalerEmscriptenLib; + } + throw Error("Looks like running in browser, but TalerEmscriptenLib is not defined"); + } + throw Error("Running in unsupported environment"); } |