Question try/catch

On peut pousser le bouchon :
[code:1]
function Throw-InnerException {
param ( [ScriptBlock]$Command)

$erroractionpreference = 'stop'

try
{
& $command
}

catch
{
Throw (New-Object $_.Exception.GetType().FullName $_.Exception.Message)
}
}

try{
Throw-InnerException {Set-Location C:\dummy}
#Throw-InnerException {Set-Location Z:\dummy}
}
catch [System.Management.Automation.ItemNotFoundException] {
Write-Host \"Répertoire introuvable !\"
}
catch [System.Management.Automation.DriveNotFoundException] {
Write-Host \"Lecteur non trouvé !\"
}
#catch on propage les autres exceptions

[/code:1]
Une erreur non bloquante peut contenir une exception :
[code:1]
$PSCmdlet.WriteError(
(New-Object System.Management.Automation.ErrorRecord(
(New-Object System.InvalidCastException ($TextMsgs.WellFormedInvalidCast -F \"Replace\",'[String]')),
\"WellFormedInvalidCast\",
\"InvalidType\",
$ParameterString
)
)
)#WriteError
[/code:1]
On peut supposer que les cmdlets respectent cette convention :

The ErrorRecord object contains the following information:

The exception that describes the error. Often, this is an exception that the cmdlet caught and converted into an error record. Every error record must contain an exception.

Du coup on ne fait que redéclencher l'exception trappée.<br><br>Message édité par: Laurent Dardenne, à: 19/03/11 19:24