我可以向标准的PowerShell类型添加静态重载吗？

Question

我正在尝试为我的最新脚本配置一个运行空间池。我想把一些函数传递给这个运行空间池。我在this link中找到了一种潜在的方法来实现这一点

#Sample function pass to runspace pool (copied from link)

Function ConvertTo-Hex {

    Param([int]$Number)

    ‘0x{0:x}’ -f $Number

}

#Get body of function

$Definition = Get-Content Function:\ConvertTo-Hex -ErrorAction Stop

#Create a sessionstate function entry

$SessionStateFunction = New-Object System.Management.Automation.Runspaces.SessionStateFunctionEntry
-ArgumentList ‘ConvertTo-Hex’, $Definition

#Create a SessionStateFunction

$InitialSessionState.Commands.Add($SessionStateFunction)

 #Create the runspacepool by adding the sessionstate with the custom function

$RunspacePool = [runspacefactory]::CreateRunspacePool(1,5,$InitialSessionState,$Host)

接下来，我为CreateRunspacePool方法准备了一个$initialSessionSate。

问题是我不得不添加$Host，因为CreateRunspacePool方法没有包含( <min runspaces>, <max runspaces>, <initial session state> )的构造函数的重载

PS>([runspacefactory] | gm -Force -Static | select -ExpandProperty definition | sls createrunspacepool`(`) ) -replace '\),',")`n"

static System.Management.Automation.Runspaces.RunspacePool CreateRunspacePool()
 static System.Management.Automation.Runspaces.RunspacePool CreateRunspacePool(int minRunspaces, int maxRunspaces)
 static System.Management.Automation.Runspaces.RunspacePool CreateRunspacePool(initialsessionstate initialSessionState)
 static System.Management.Automation.Runspaces.RunspacePool CreateRunspacePool(int minRunspaces, int maxRunspaces, System.Management.Automation.Host.PSHost host)
 static System.Management.Automation.Runspaces.RunspacePool CreateRunspacePool(int minRunspaces, int maxRunspaces, initialsessionstate initialSessionState, System.Management.Automation.Host.PSHost host)
 static System.Management.Automation.Runspaces.RunspacePool CreateRunspacePool(int minRunspaces, int maxRunspaces, System.Management.Automation.Runspaces.RunspaceConnectionInfo connectionInfo)
 static System.Management.Automation.Runspaces.RunspacePool CreateRunspacePool(int minRunspaces, int maxRunspaces, System.Management.Automation.Runspaces.RunspaceConnectionInfo connectionInfo, System.Management.Automation.Host.PSHost host)
 static System.Management.Automation.Runspaces.RunspacePool CreateRunspacePool(int minRunspaces, int maxRunspaces, System.Management.Automation.Runspaces.RunspaceConnectionInfo connectionInfo, System.Management.Automation.Host.PSHost host, System.Management.Automation.Runspaces.TypeTable typeTable)
 static System.Management.Automation.Runspaces.RunspacePool CreateRunspacePool(int minRunspaces, int maxRunspaces, System.Management.Automation.Runspaces.RunspaceConnectionInfo connectionInfo, System.Management.Automation.Host.PSHost host, System.Management.Automation.Runspaces.TypeTable typeTable, psprimitivedictionary applicationArguments)

但是，当我包含$Host (通过Get-Host)时，运行空间是在无语言模式下启动的，这是我不想要的。首先，根据微软的文档，我认为无语言模式排除了在我的运行空间中使用AddScript，但目前它给了我以下语法错误：

​

​

如果我回到最小/最大运行空间重载，并在scriptblock中定义我的所有函数，这个错误就会消失。

根据谷歌的说法，当我实例化一个运行空间来覆盖这种行为时，似乎不可能显式地设置语言模式，所以我的目标是避免提供$Host。

问题

有人知道我是否以及如何将自己的构造函数添加到不包含$Host的CreateRunspacePool方法中吗？或者用其他方式来实现我的目标？

如果与之相关，我的PowerShell在FullLanguage模式下运行：

PS>$ExecutionContext.SessionState.LanguageMode
FullLanguage

PS(5.1.19041)

Edit1:添加了无语言模式的错误图片和更多上下文。

Answer 1

问题是我不得不添加$Host，因为CreateRunspacePool方法没有包含( <min runspaces>, <max runspaces>, <initial session state> )的构造函数的重载：

幸运的是，最小和最大运行空间数量在实例化后是可配置的，因此您可以这样做：

# Create runspace with desired initial session state
$RunspacePool = [runspacefactory]::CreateRunspacePool($initialsessionstate)

# Set MaxRunspace count after the fact, MinRunspace count defaults to 1
$RunspacePool.SetMaxRunspaces(5)