Simplify loading of the emscripten lib.

This removes an ugly hack and makes it possible to access the emscripten
compiled library from within nodejs test cases more easily.

1 files changed, 38 insertions, 0 deletions

diff --git a/src/crypto/emscLoader.js b/src/crypto/emscLoader.js
new file mode 100644
index 000000000..723b8ae36
--- /dev/null
+++ b/src/crypto/emscLoader.js
@@ -0,0 +1,38 @@
+/*
+ This file is part of TALER
+ (C) 2017 Inria and GNUnet e.V.
+
+ TALER is free software; you can redistribute it and/or modify it under the
+ terms of the GNU General Public License as published by the Free Software
+ Foundation; either version 3, or (at your option) any later version.
+
+ TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along with
+ TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+
+// @ts-nocheck
+
+/**
+ * Load the taler emscripten lib.
+ *
+ * If in a WebWorker, importScripts is used.  Inside a browser,
+ * the module must be globally available.
+ */
+export default function getLib() {
+  if (window.TalerEmscriptenLib) {
+    return TalerEmscriptenLib;
+  }
+  if (importScripts) {
+    importScripts('/src/emscripten/taler-emscripten-lib.js')
+    if (TalerEmscriptenLib) {
+      throw Error("can't import TalerEmscriptenLib");
+    }
+    return TalerEmscriptenLib
+  }
+  throw Error("Can't find TalerEmscriptenLib.");
+}