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Interim hand-authored reference. This page is authored from the SeamSDK public Swift sources. See the reference overview for context.

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Overview

SeamSDK adds two public extensions to types outside the SDK’s own namespace. Both are minor utility conformances.

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extension String

extension String: @retroactive Error { }
Conforms String to Error retroactively. This allows string literals to be used as throwable error values in SDK-internal bridging code. It is a low-level utility conformance with no public API surface beyond what Error already provides.

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extension PKAutomaticPassPresentationSuppressionResult

Defined in PassKit. SeamSDK adds a CustomStringConvertible conformance so that suppression result values produce human-readable descriptions in logs. 
extension PKAutomaticPassPresentationSuppressionResult: @retroactive CustomStringConvertible {
    public var description: String { get }
}

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description

Returns a human-readable name for the suppression result.
Valuedescription
.notSupported"NotSupported"
.alreadyPresenting"AlreadyPresenting"
.denied"Denied"
.cancelled"Cancelled"
.success"Success"
unknown future cases"Unknown(<rawValue>)"
This conformance is used internally by SeamSDK to log Apple Wallet pass-suppression state during unlock operations. You do not need to interact with it directly.