open questions

README.md

@@ -109,6 +109,26 @@ The triangle example is written from top to bottom without many helper functions
 
 ![screenshot](http://i.imgur.com/PQZcL6w.jpg)
 
+## Open questions
+
+### Unsafe?
+Currently ash can be used without any unsafe keyword. I have looked at a few other c wrappers and it seems this is common practice. But Ash is not particular safe and I am thinking of marking every function `unsafe`.
+
+### Optional extension loading
+Currently extensions are loaded like normal vulkan functions. This means some extenstions can be loaded, for example the win32 surface on linux. Accessing a unloaded function currently triggers a `debug_assert`. I am thinking of seperating extensions into their own struct.
+
+```Rust
+impl Device{
+    pub fn load_swapchain(&self) -> Result<SwapchainExtension, Err>;
+}
+// Instead of
+//let swapchain = device.create_swapchain_khr(&swapchain_create_info).unwrap();
+
+let swapchain_ext = device.load_swapchain().unwrap();
+let swapchain = swapchain_ext.create_swapchain_khr(&swapchain_create_info).unwrap();
+```
+
+
 ## Roadmap
 
 ### Complete

examples/src/main.rs

@@ -1,4 +1,3 @@
-#![feature(conservative_impl_trait)]
 #![allow(dead_code)]
 extern crate ash;