Fixed a crash when we have an error in the callback

AGulev · web-flow · commit e68941adf64f · 2019-05-31T18:06:41.000+02:00
diff --git a/facebook/src/facebook_util.cpp b/facebook/src/facebook_util.cpp
@@ -639,7 +639,8 @@ void dmFacebook::RunCallback(lua_State* L, int* _self, int* _callback, const cha
 
             if (lua_pcall(L, 2, 0, 0) != 0)
             {
-                dmLogError("Error running facebook callback");
+                dmLogError("Error running facebook callback: %s", lua_tostring(L, -1));
+                lua_pop(L, 1);
             }
 
             dmScript::Unref(L, LUA_REGISTRYINDEX, *_callback);

Original file line number	Diff line number	Diff line change
`@@ -639,7 +639,8 @@ void dmFacebook::RunCallback(lua_State* L, int* _self, int* _callback, const cha`
`639`	`639`
`640`	`640`	`if (lua_pcall(L, 2, 0, 0) != 0)`
`641`	`641`	`{`
`642`		`- dmLogError("Error running facebook callback");`
	`642`	`+ dmLogError("Error running facebook callback: %s", lua_tostring(L, -1));`
	`643`	`+ lua_pop(L, 1);`
`643`	`644`	`}`
`644`	`645`
`645`	`646`	`dmScript::Unref(L, LUA_REGISTRYINDEX, *_callback);`