When we define a trait we give it a function statement of the form fn blah(foo: Bar). But when implementing this trait the parameter name (here it is foo) can be changed as you wish. So let's have an example.
/// A very simple struct struct Simple; /// A struct that doesn't matter struct Whatever; /// A trait that does something _very_ complex trait SuperDuperComplexThing { fn do_super_duper_complex_thing(some_extremely_and_needlessly_long_parameter: Whatever) -> Whatever ; } impl SuperDuperComplexThing for Simple { fn do_super_duper_complex_thing(simple_param: Whatever) -> Whatever { Whatever } } And this works perfectly. It compiles.
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