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Proof of concept: Two types of decoders #2

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Proof of concept: Two types of decoders #2

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hello-im-szymon
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This allows for a bit less strict decoders. For example:

private struct ImageDecoder: ConcreteTypeDecoder {

    enum DecodingError: Error {
        case invalidData
    }

    func decode(_ data: Data) throws -> UIImage {
        guard let image = UIImage(data: data) else {
            throw DecodingError.invalidData
        }
        return image
    }

}

The API is not changed for existing clients.

hello-im-szymon
hello-im-szymon commented Aug 28, 2020
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Sources/URLSessionDecodable/DataDecoder.swift
// For legacy reasons
public typealias DataDecoder = AnyTypeDecoder

public protocol ConcreteTypeDecoder {
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not sure about the naming

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