Missing type in composite literal

by

The assignability rules are forgiving for anonymous types which leads to another possibility where you can retain the original definition of A while allowing short composite literals of that type to be written. If you really insist on an anonymous type for the B field, I would probably write something like:

package main

import "fmt"

type (
        A struct {
                B struct {
                        Some string
                        Len  int
                }
        }

        b struct {
                Some string
                Len  int
        }
)

func main() {
        a := &A{b{"xxx", 3}}
        fmt.Printf("%#v\n", a)
}

Playground

Output

&main.A{B:struct { Some string; Len int }{Some:"xxx", Len:3}}

More Related Contents:

  1. Initialize nested struct definition
  2. How to set and get fields in struct’s method
  3. Assign struct with another struct
  4. Can embedded struct method have knowledge of parent/child?
  5. How to check for an empty struct?
  6. Golang : Is conversion between different struct types possible?
  7. nested struct initialization literals
  8. Sizeof struct in Go
  9. What is the correct way to retrieve length of an array added a field in nested struct in golang
  10. How do I do a literal *int64 in Go?
  11. How to clone a struct storing a boxed trait object?
  12. What are the use(s) for tags in Go?
  13. Go embedded struct call child method instead parent method
  14. Generic Structs with Go
  15. Why struct fields are showing empty?
  16. Invoking struct function gives “cannot refer to unexported field or method”
  17. Automatically implement traits of enclosed type for Rust newtypes (tuple structs with one field)
  18. How to update map values in Go
  19. package’s type cannot be used as the vendored package’s type
  20. Why are interfaces needed in Golang?
  21. Order of the code and performance
  22. Swift and mutating struct
  23. What is the idiomatic way in Go to create a complex hierarchy of structs?
  24. Unmarshal 2 different structs in a slice
  25. Struct in for loop initializer
  26. When do you embed mutex in struct in Go?
  27. How to clone a structure with unexported field?
  28. Why can’t I append to a slice that’s the property of a struct in golang?
  29. What’s the difference between pointer and value in struct?
  30. unmarshalling arbitrary data

Leave a Comment