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helper for always present

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Pfeil, Scott Robert 2021-04-08 11:13:50 -04:00
parent 9fa06ed560
commit 95e36ffc2d
1 changed files with 11 additions and 0 deletions
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11
MVMCoreUI/Atomic/Protocols/ModelProtocols/MoleculeModelProtocol.swift
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@ -21,6 +21,8 @@ public extension MoleculeModelProtocol {
static var categoryCodingKey: String { "moleculeName" }
}
// Helpers made due to swift not able to reconcile which category.
extension KeyedDecodingContainer where Key: CodingKey {
/// Decodes to a registered molecule based on the identifier
public func decodeMoleculeIfPresent<T>(codingKey: KeyedDecodingContainer<K>.Key) throws -> T? {
@ -33,6 +35,15 @@ extension KeyedDecodingContainer where Key: CodingKey {
}
return modelT
}
/// Decodes to a registered molecule based on the identifier.
public func decodeMolecule<T>(codingKey: KeyedDecodingContainer<K>.Key) throws -> T {
guard let model: T = try decodeMoleculeIfPresent(codingKey: codingKey) else {
MVMCoreLoggingHandler.logDebugMessage(withDelegate: "ModelRegistry Error decoderErrorObjectNotPresent: \(codingKey.stringValue)")
throw ModelRegistry.Error.decoderErrorObjectNotPresent(codingKey: codingKey, codingPath: codingPath)
}
return model
}
}
public extension MoleculeModelProtocol {