support json encode decode for Pointer

[trim21]

many atomic value support MarshalJSON and UnmarshalJSON, any plan for Pointer[T]?

[JacobOaks]

Hey, to better understand - how are you running into this issue/what's your use case?

[trim21]

Hey, to better understand - how are you running into this issue/what's your use case?

i have a config file will be used in multiple goroutine, I don't want to write a duplicate thread safe structure

type Config struct {
    Opt atomic.Pointer[string] `json:"opt"`
}

config.Opt may be write and read concurrently, and initial parsed from config, maybe nil.

Currently I need to do it this way:

type Config struct {
    Opt *string `json:"opt"`
}

type safeConfig struct {
    Opt atomic.Pointer[string]
}