Golang embedded struct type

by

Embedded types are (unnamed) fields, referred to by the unqualified type name.

Spec: Struct types:

A field declared with a type but no explicit field name is an anonymous field, also called an embedded field or an embedding of the type in the struct. An embedded type must be specified as a type name T or as a pointer to a non-interface type name *T, and T itself may not be a pointer type. The unqualified type name acts as the field name.

So try:

e := ErrorValue{NamedValue: NamedValue{Name: "fine", Value: 33}, Error: err}

Also works if you omit the field names in the composite literal:

e := ErrorValue{NamedValue{"fine", 33}, err}

Try the examples on the Go Playground.

More Related Contents:

  1. Struct in for loop initializer
  2. What is the correct way to retrieve length of an array added a field in nested struct in golang
  3. What are the use(s) for tags in Go?
  4. What are the use(s) for struct tags in Go?
  5. Generic Structs with Go
  6. How to access unexported struct fields
  7. Can embedded struct method have knowledge of parent/child?
  8. package’s type cannot be used as the vendored package’s type
  9. How to set default values in Go structs
  10. Why are interfaces needed in Golang?
  11. What is the idiomatic way in Go to create a complex hierarchy of structs?
  12. When do you embed mutex in struct in Go?
  13. Go struct tags with underscore before function names
  14. How to clone a structure with unexported field?
  15. Why can’t I append to a slice that’s the property of a struct in golang?
  16. Why do 2 time structs with the same date and time return false when compared with ==?
  17. How to avoid non reachable code with switch-case?
  18. Stop code execution after redirect
  19. What’s the meaning of interface{}?
  20. Multiple values in single-value context
  21. How to initialize a nested struct?
  22. What are channels used for?
  23. Identify non builtin-types using reflect
  24. How to collect values from N goroutines executed in a specific order?
  25. Converting map to struct
  26. Function declaration syntax: things in parenthesis before function name
  27. How to import local packages without gopath
  28. How can I open files relative to my GOPATH?
  29. Difference between any/interface{} as constraint vs. type of argument?
  30. Handle maps with same key type but different value type

Leave a Comment