|  | #include <metal_stdlib> | 
|  |  | 
|  | using namespace metal; | 
|  | struct FragmentInputs { | 
|  | float4 position; | 
|  | bool front_facing; | 
|  | uint sample_index; | 
|  | uint sample_mask; | 
|  | }; | 
|  |  | 
|  | void tint_symbol_inner(FragmentInputs inputs) { | 
|  | if (inputs.front_facing) { | 
|  | float4 const foo = inputs.position; | 
|  | uint const bar = (inputs.sample_index + inputs.sample_mask); | 
|  | } | 
|  | } | 
|  |  | 
|  | fragment void tint_symbol(float4 position [[position]], bool front_facing [[front_facing]], uint sample_index [[sample_id]], uint sample_mask [[sample_mask]]) { | 
|  | FragmentInputs const tint_symbol_1 = {.position=position, .front_facing=front_facing, .sample_index=sample_index, .sample_mask=sample_mask}; | 
|  | tint_symbol_inner(tint_symbol_1); | 
|  | return; | 
|  | } | 
|  |  |