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Goでコンストラクタっぽいことをする

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Last updated at Posted at 2018-10-06

Goで構造体型の初期化をコンストラクタっぽく書く時は、およそ次のルールを守れば良い。

  • ”New型名”という名前にする。
  • 戻り値はポインタ型にする。

(例)

func NewFile(fd int, name string) *File {
    if fd < 0 {
        return nil
    }
    f := File{fd, name, nil, 0}
    return &f
}

参考:https://golang.org/doc/effective_go.html#composite_literals

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