CodableだけどVaporのContentにConformsできないっていうの https://github.com/kishikawakatsumi/CodableConformsToContent/blob/master/Sources/App/routes.swift#L15 これです。 DocumentSymbolRequest.Response は Codable なんですけど

Conditional conformance of type 'Optional<Wrapped>' to protocol 'Content' does not imply conformance to inherited protocol 'RequestDecodable'

というエラーで、定義は

public struct DocumentSymbolRequest: TextDocumentRequest, Hashable { public static let method: String = "textDocument/documentSymbol" public typealias Response = DocumentSymbolResponse? /// The document in which to lookup the symbol location. public var textDocument: TextDocumentIdentifier public init(textDocument: TextDocumentIdentifier) { self.textDocument = textDocument } }

なので typealias Response = DocumentSymbolResponse? のところが問題なのかな？ちなみに、 DocumentSymbolResponse の方は extension DocumentSymbolResponse: Content {} でOK。 (edited)

kishikawakatsumi/CodableConformsToContent

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