powershell ScriptMethod，そういうのもあるのか

Posted 2021-05-23

PS> function Math() {
    $obj = New-Object psobject
    $obj | Add-Member -MemberType ScriptMethod -Name Add -Value {
        param([int] $m, [int] $n)
        return $m + $n
    }
    $obj | Add-Member -MemberType ScriptMethod -Name Multiply -Value {
        param([int] $m, [int] $n)
        return $m * $n
    }
    $obj | Add-Member -MemberType ScriptProperty -Name x -Value {100}
    $obj | Add-Member -MemberType ScriptMethod -Name Multiply100 -Value {
        param([int] $m)
        return $m * $this.x # $thisなんてあるんね
    }
    return $obj
}

PS> $math = Math
PS> $math.Add(1, 2)
3
PS> $math.Multiply100(6)
600