From cc4e8ddc85d36f29a7385a7f4eb08c77f46b3af6 Mon Sep 17 00:00:00 2001
From: Florian Dold <florian.dold@gmail.com>
Date: Wed, 31 Jul 2019 01:33:56 +0200
Subject: headless wallet WIP

---
 src/crypto/emscInterface.ts | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/crypto/emscInterface.ts')

diff --git a/src/crypto/emscInterface.ts b/src/crypto/emscInterface.ts
index 2ddc15a37..70a85cda1 100644
--- a/src/crypto/emscInterface.ts
+++ b/src/crypto/emscInterface.ts
@@ -43,6 +43,9 @@ export function initialize(lib: EmscLib) {
   if (!lib) {
     throw Error("library must be object");
   }
+  if (!lib.ccall) {
+    throw Error("sanity check failed: EmscLib does not have 'ccall'");
+  }
   if (maybeEmscEnv) {
     throw Error("emsc lib already initialized");
   }
-- 
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