Cost to non-commercial projects
So, what happens behind the scenes when we instantiate our Person with String? When we try to use Person with a function like greet, the trait system first looks for an implementation of Display specifically for Person. What it instead finds is a generic implementation of Display for Person. To make that work, the trait system instantiates the generic Name type as a String and then goes further down to look for an implementation of Display for String.
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No argument calculates the value using current character offset.
Фото: Станислав Красильников / РИА Новости