[sidlls]

Generics as currently implemented in go are so limited that you may as well stick with interfaces for anything but trivial boilerplate or textbook data structure/algorithm implementations.

For example, it's currently impossible to define type constraints with user-defined interfaces embedded:

  ```
  // this is legal
  type MyConstraint interface {
    int64 | float
  }

  type SomeAPI interface {
    AMethod() error
  }

  // Nope
  type CantHaveThisConstraint interface {
    int64 | float | SomeAPI
  }

  // NOPE
  func SomeGeneric[T CantHaveThisConstraint](...) {
  }
  ```

[morelisp]

It's true that doesn't work because you can't mix types with methods and types with no methods. But that's a far cry from "Go doesn't have generic types" or "may as well stick with interfaces for anything but trivial boilerplate".