1 files changed, 83 insertions, 0 deletions
diff --git a/third_party/rust/metal/examples/reflection/main.rs b/third_party/rust/metal/examples/reflection/main.rs
new file mode 100644
index 0000000000..41208d1845
--- /dev/null
+++ b/third_party/rust/metal/examples/reflection/main.rs
@@ -0,0 +1,83 @@
+// Copyright 2016 GFX developers
+//
+// Licensed under the Apache License, Version 2.0, <LICENSE-APACHE or
+// http://apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or
+// http://opensource.org/licenses/MIT>, at your option. This file may not be
+// copied, modified, or distributed except according to those terms.
+
+#[macro_use]
+extern crate objc;
+
+use metal::*;
+
+use cocoa::foundation::NSAutoreleasePool;
+
+const PROGRAM: &'static str = "
+    #include <metal_stdlib>\n\
+
+    using namespace metal;\n\
+
+    typedef struct {\n\
+        float2 position;\n\
+        float3 color;\n\
+    } vertex_t;\n\
+
+    struct ColorInOut {\n\
+        float4 position [[position]];\n\
+        float4 color;\n\
+    };\n\
+
+    vertex ColorInOut vs(device vertex_t* vertex_array [[ buffer(0) ]],\n\
+                                      unsigned int vid [[ vertex_id ]])\n\
+    {\n\
+        ColorInOut out;\n\
+
+        out.position = float4(float2(vertex_array[vid].position), 0.0, 1.0);\n\
+        out.color = float4(float3(vertex_array[vid].color), 1.0);\n\
+
+        return out;\n\
+    }\n\
+
+    fragment float4 ps(ColorInOut in [[stage_in]])\n\
+    {\n\
+        return in.color;\n\
+    };\n\
+";
+
+fn main() {
+    let pool = unsafe { NSAutoreleasePool::new(cocoa::base::nil) };
+
+    let device = Device::system_default().expect("no device found");
+
+    let options = CompileOptions::new();
+    let library = device.new_library_with_source(PROGRAM, &options).unwrap();
+    let (vs, ps) = (
+        library.get_function("vs", None).unwrap(),
+        library.get_function("ps", None).unwrap(),
+    );
+
+    let vertex_desc = VertexDescriptor::new();
+
+    let desc = RenderPipelineDescriptor::new();
+    desc.set_vertex_function(Some(&vs));
+    desc.set_fragment_function(Some(&ps));
+    desc.set_vertex_descriptor(Some(vertex_desc));
+
+    println!("{:?}", desc);
+
+    #[cfg(features = "private")]
+    let _reflection = unsafe {
+        RenderPipelineReflection::new(
+            desc.serialize_vertex_data(),
+            desc.serialize_fragment_data(),
+            vertex_desc.serialize_descriptor(),
+            &device,
+            0x8,
+            0x0,
+        )
+    };
+
+    unsafe {
+        let () = msg_send![pool, release];
+    }
+}