[[stage(fragment)]] fn main([[location(0)]] loc0 : i32, [[location(1)]] loc1 : u32, [[location(2)]] loc2 : f32, [[location(3)]] loc3 : vec4) { let i : i32 = loc0; let u : u32 = loc1; let f : f32 = loc2; let v : vec4 = loc3; }