PowerShell Class Constructor Sample

PowershellConstructor.ps1

########################
# Constructor Call check
########################
class Hoge
{
    Hoge()
    {
        Write-Host "constuctor called"
    }
}

[Hoge]::new()

<#
constuctor called
#>


########################
# Initialization
########################
class MyClass
{
    [string]$name
    [int]$age

    MyClass()
    {
        $name = ""
        $age = 0
    }
}

[MyClass]::new()

<#
name age
---- ---
       0
#>

########################
# This not supported
########################
class MyClass
{
    [string]$name;

    MyClass([string]$name)
    {
        $name = $name #this not yet usable
    }
}

[MyClass]::new("hoge")

<#
name                                                                                       
----  
#>


########################
# Constructor can overload
########################
class MyClass
{
    [string]$name
    [int]$age

    MyClass()
    {
        $name = ""
        $age = 0
    }

    MyClass([string]$hoge, [int]$fuga)
    {
        $name = $hoge
        $age = $fuga
    }
}

[MyClass]::new
<#
OverloadDefinitions
-------------------
MyClass, powershell, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null new()
MyClass, powershell, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null new(string hoge, int fuga)
#>

[MyClass]::new("hoge", 10)

<#
name age
---- ---
hoge  10
#>

"constuctor called"