Utilities/ValidateExpressionCacheProviders.ps1
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function Validate-ExpressionCacheProviders { [CmdletBinding()] param( [System.Collections.IDictionary]$Providers ) $validated = [ordered]@{} # case-insensitive name de-dupe $seenNames = New-Object 'System.Collections.Generic.HashSet[string]' ([System.StringComparer]::OrdinalIgnoreCase) foreach ($key in $Providers.Keys) { $raw = $Providers[$key] # Guard against accidental arrays (e.g., passing @($spec)) if ($raw -is [array]) { throw "Provider '$key' value must be a single spec object, not an array." } $spec = Test-ExpressionCacheProviderSpec -Spec $raw # returns a **hashtable** if (-not $seenNames.Add($spec.Name)) { throw "Duplicate provider name '$($spec.Name)' detected. Names must be unique (case-insensitive)." } $validated[$key] = $spec } return $validated } |