Reflect access child

[Michael_Hugi]

Hello

I’m writing a generic JSON parser that has some requirements that are not satisfied by the inbuilt deparser. I can deparse a JSON to a map and then assign the values to fields. But when I have a struct in a struct, it doesn’t work anymore.

Here is an example of what is not working:

https://play.golang.org/p/UvSl3wl9U_p

Note It’s a generic approach for a module. So I don’t know the type of the deparsed struct at compile time so I can’t typecast directly to childNode

[skillian (Sean Killian)]

On line 115, you’re creating a reflect.Value of a pointer to a reflect.Value:

childV := reflect.ValueOf(&f)

Instead, I recommend you take the address of the field so that when you recurse into writeValuesReflected, your call to Elem() gets the right value:

childV := f.Addr()