Writing generic collection types in Go: the missing documentation

The blog post discusses the challenges faced when trying to implement generic collection types in Go, specifically focusing on creating a sortable Set of any type. The author initially attempts to define a SortableSet interface using two generic type parameters but encounters compilation errors due to the Sortable interface being generic itself. After exploring different approaches, the author settles on a self-referential type definition without the comparable constraint, allowing for the creation of a MapSet and a SliceSet using a slice for storage. The author encounters issues with equality comparisons in the Contains method, leading to a workaround using the Less method. Ultimately, the author discovers the syntax for generic type constraints in Go, utilizing interfaces to combine type constraints with method declarations, enabling the creation of a generic min function. This revelation sheds light on the underlying mechanisms of type constraints in Go generics, providing a clearer understanding of how to express constraints effectively in generic type definitions.