|  | struct tint_symbol_1 { | 
|  | float4 position : SV_Position; | 
|  | bool front_facing : SV_IsFrontFace; | 
|  | uint sample_index : SV_SampleIndex; | 
|  | uint sample_mask : SV_Coverage; | 
|  | }; | 
|  |  | 
|  | void main(tint_symbol_1 tint_symbol) { | 
|  | const float4 position = tint_symbol.position; | 
|  | const bool front_facing = tint_symbol.front_facing; | 
|  | const uint sample_index = tint_symbol.sample_index; | 
|  | const uint sample_mask = tint_symbol.sample_mask; | 
|  | if (front_facing) { | 
|  | const float4 foo = position; | 
|  | const uint bar = (sample_index + sample_mask); | 
|  | } | 
|  | return; | 
|  | } |