Comments (4)
I ended up writing this code.
infix operator <||<|| : MultiplicationPrecedence
/// - Throws: DecodeError or an arbitrary ErrorType
public func <||<|| <T: Decodable>(e: Extractor, keyPath: KeyPath) throws -> [[T]] {
let json: [String: Any] = try castOrFail(e.rawValue)
let array: [Any] = try castOrFail(json[keyPath.components.joined(separator: ".")])
return try array.map { c -> [T] in
return try castOrFail(c)
}
}
I would add this to your App, rather than to Himotoki. I think it's better to keep the core code small.
I also needed to add Optional version of castOrFail
to suppress the warning that says Expression implicitly coerced from 'Any?' to Any
.
public func castOrFail<T>(_ any: Any?) throws -> T {
guard let result = any as? T else {
throw typeMismatch("\(T.self)", actual: any)
}
return result
}
So now you can do this.
extension Summary: Decodable {
static func decode(_ e: Extractor) throws -> Summary {
return try Summary(items: e <||<|| "items")
}
}
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Sorry for the late response, and thanks to @toshi0383 for sharing your way!
Seems that this is a duplicate of #149 and I'd rather write something like this: #149 (comment).
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Wow, that looks neat😮
from himotoki.
Thank you both guys, I'll have a look at both solutions
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Related Issues (20)
- Is it possible to map multiple JSON fields to a single property? HOT 1
- Wrong keyPath message on DecodeError.TypeMismatch HOT 2
- Restore `DecodedType` associatedtype HOT 1
- Implementing decode for a 2-D array HOT 4
- Swift 3 error HOT 1
- default implementation for enums that have a raw string value HOT 1
- Encoding JSON
- `<|?` throws typeMismatch error where it should not HOT 1
- valueOptional triggers swift exception break point HOT 1
- Linux support HOT 2
- How best to extract raw dictionaries? HOT 2
- dyld: Library not loaded: @rpath/libswiftSwiftOnoneSupport.dylib HOT 5
- Method to extract an array of optionals? HOT 1
- Why Class can not decode by Himotoki? HOT 2
- support for Xcode 9 HOT 1
- Please, add description for work with realm HOT 1
- None of your spec sources contain a spec satisfying the dependency: `Himotoki (~> 3.1)`. HOT 1
- decoding a json with variable keys
- Swift 4.2 compatibility HOT 1
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