Hi. Thanks for the handy library first.
Seems the implementation is not working for map at the mo. When I try:
var a []string
m := map[string][]string{
"k": a,
}
b, _ = json.Marshal(Initialize(m))
fmt.Println(string(b))I got:
I have tried to add:
func initializeNils(v reflect.Value) {
// Dereference pointer(s).
for v.Kind() == reflect.Ptr && !v.IsNil() {
v = v.Elem()
}
if v.Kind() == reflect.Slice {
// Initialize a nil slice.
if v.IsNil() && v.CanSet() {
v.Set(reflect.MakeSlice(v.Type(), 0, 0))
return
}
// Recursively iterate over slice items.
for i := 0; i < v.Len(); i++ {
item := v.Index(i)
initializeNils(item)
}
}
// Recursively iterate over struct fields.
if v.Kind() == reflect.Struct {
for i := 0; i < v.NumField(); i++ {
field := v.Field(i)
initializeNils(field)
}
}
+ if v.Kind() == reflect.Map {
+ for _, key := range v.MapKeys() {
+ value := v.MapIndex(key)
+ initializeNils(value)
+ }
+ }
}But with no effect. I debugged to find out that seems in this case value.CanSet() is false because map value is not addressable (reference).
Would be appreciated if anyone can find a solution to this!
Hi. Thanks for the handy library first.
Seems the implementation is not working for map at the mo. When I try:
I got:
I have tried to add:
func initializeNils(v reflect.Value) { // Dereference pointer(s). for v.Kind() == reflect.Ptr && !v.IsNil() { v = v.Elem() } if v.Kind() == reflect.Slice { // Initialize a nil slice. if v.IsNil() && v.CanSet() { v.Set(reflect.MakeSlice(v.Type(), 0, 0)) return } // Recursively iterate over slice items. for i := 0; i < v.Len(); i++ { item := v.Index(i) initializeNils(item) } } // Recursively iterate over struct fields. if v.Kind() == reflect.Struct { for i := 0; i < v.NumField(); i++ { field := v.Field(i) initializeNils(field) } } + if v.Kind() == reflect.Map { + for _, key := range v.MapKeys() { + value := v.MapIndex(key) + initializeNils(value) + } + } }But with no effect. I debugged to find out that seems in this case
value.CanSet()is false because map value is not addressable (reference).Would be appreciated if anyone can find a solution to this!