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interface{}型に特定のstructぶっこんでから置き換えってできるの?

Last updated at Posted at 2019-02-18

できるはずなんだけど... 不安になったので、実験してみた。

結果:できた。

package main

import (
    "fmt"
)

type a struct {
    ID string
    Something interface{}
}

type b struct {
    ID string
}


type c struct {
    ID string
    Param string
}

func main() {
    r := a{
        ID: "test",
        Something: b{
            ID: "hey guy!!",
        },
    }

    other := c{
        ID: "hey girl!!",
        Param: "you are awesome",
    }

    r.Something = other
    fmt.Printf("%+v\n", r)
}

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