Using raise instead of JS.throw

bryanjos · bryanjos · commit 6982cbcb07e5 · 2017-10-23T21:53:14.000-05:00
diff --git a/lib/elixir_script/test/assertions.ex b/lib/elixir_script/test/assertions.ex
@@ -1,9 +1,7 @@
 defmodule ElixirScript.Test.Assertions do
   def assert(value) do
     if !value do
-      ElixirScript.JS.throw(%ElixirScript.Test.AssertionError{
-        message: "failed"
-      })
+      raise ElixirScript.Test.AssertionError, message: "failed"
     end
   end
 end
diff --git a/src/javascript/lib/core/erlang_compat/erlang.js b/src/javascript/lib/core/erlang_compat/erlang.js
@@ -478,19 +478,25 @@ function _throw(term) {
 }
 
 function error(reason) {
+  let theError = null;
+
   if (reason instanceof Map && reason.has(Symbol.for('__exception__'))) {
     let name = Symbol.keyFor(reason.get(Symbol.for('__struct__')).__MODULE__);
     name = name
       .split('.')
       .slice(1)
       .join('.');
     const message = reason.get(Symbol.for('message'));
-    throw new Error(`** (${name}) ${message}`);
+    theError = new Error(`** (${name}) ${message}`);
   } else if (is_binary(reason)) {
-    throw new Error(`** (RuntimeError) ${reason}`);
+    theError = new Error(`** (RuntimeError) ${reason}`);
   } else {
-    throw new Error(`** (ErlangError) Erlang Error ${reason.toString()}`);
+    theError = new Error(`** (ErlangError) Erlang Error ${reason.toString()}`);
   }
+
+  theError.__reason = reason;
+
+  throw theError;
 }
 
 function exit(...args) {
