SwiftLint/Source/SwiftLintFramework/Rules/RuleConfigurations/ComputedAccessorsOrderRuleConfiguration.swift

struct ComputedAccessorsOrderRuleConfiguration: SeverityBasedRuleConfiguration, Equatable {
    enum Order: String {
        case getSet = "get_set"
        case setGet = "set_get"
    }

    private(set) var severityConfiguration = SeverityConfiguration(.warning)
    private(set) var order = Order.getSet

    var consoleDescription: String {
        return "severity: \(severityConfiguration.consoleDescription)"
            + ", order: \(order.rawValue)"
    }

    mutating func apply(configuration: Any) throws {
        guard let configuration = configuration as? [String: Any] else {
            throw ConfigurationError.unknownConfiguration
        }

        if let orderString = configuration["order"] as? String,
            let order = Order(rawValue: orderString) {
            self.order = order
        }

        if let severityString = configuration["severity"] as? String {
            try severityConfiguration.apply(configuration: severityString)
        }
    }
}