### Compilation failed:

error: 8: variables of type 'shader' must be uniform
error: 9: 'in' variables not permitted in runtime effects
error: 9: variables of type 'shader' must be uniform
error: 12: variables of type 'shader' must be global
error: 12: variables of type 'shader' must be uniform
error: 13: parameters of type 'shader' not allowed
error: 14: functions may not return opaque type 'shader'
error: 15: cannot construct 'shader'
error: 16: ternary expression of opaque type 'shader' not allowed
9 errors