dawn-cmake/test/shader_io/fragment_input_locations_struct.wgsl

struct FragmentInputs {
  @location(0) @interpolate(flat) loc0 : i32;
  @location(1) @interpolate(flat) loc1 : u32;
  @location(2) loc2 : f32;
  @location(3) loc3 : vec4<f32>;
};

@stage(fragment)
fn main(inputs : FragmentInputs) {
  let i : i32 = inputs.loc0;
  let u : u32 = inputs.loc1;
  let f : f32 = inputs.loc2;
  let v : vec4<f32> = inputs.loc3;
}