Kuidas saab määrata, kas konkreetne struktuur rakendab antud liidest?

In Go, the implementation of an interface is checked implicitly: if a type contains all the methods declared in the interface, it automatically implements that interface.

To determine if a struct implements a given interface, you can:

1. Try assigning an instance of the struct to a variable of the interface type — if compilation succeeds, it means the struct implements the interface.
2. Use a static check with _var _:

var _ MyInterface = (*MyStruct)(nil)

If this code compiles without errors, it means that MyStruct implements the MyInterface interface.

Example:

type MyInterface interface {
    DoSomething()
}

type MyStruct struct {}

func (m *MyStruct) DoSomething() {
    // implementation
}

// Check interface implementation
var _ MyInterface = (*MyStruct)(nil)

Thus, in Go, it is not necessary to explicitly specify the implementation of an interface — it suffices to implement all its methods.