Architecture contract (ARCH9204)

Dieser Inhalt ist noch nicht in deiner Sprache verfügbar.

Key swift.architecture.contract · Severity error · Category architecture

Flags a type reference against the layer direction, a feature’s boundary or the project’s own architecture rules: code under Feature/, Features/ or Slices/ using another feature’s behaviour (a class, actor or struct with function bodies, a SwiftUI view - its model structs, enums and protocols are allowed); data, network, service or domain code using the presentation layer (Views, Scenes, Screens, UI, Presentation); the domain using the data layer in a module whose data layer already uses its domain (where the domain calls the data layer, that is the design); or any dependency a rule in Project settings > Scanning forbids. Swift files of one target see each other without imports, so a reference is a type name resolved to the file that declares it; a reference between two targets is declared in the build and is checked only against the presentation rule and the project’s rules. Read from folder names, not type names.

Incorrect

struct ProductResponse: Decodable {
    let type: String
    var uiType: HologramType { HologramType(rawValue: type) ?? .unknown } // HologramType lives in App/Scenes/Hologram
}

Correct

struct ProductResponse: Decodable {
    let type: String
}

// App/Scenes/Hologram/HologramType+Response.swift - the presentation layer maps the response
extension HologramType { init(_ response: ProductResponse) { self = HologramType(rawValue: response.type) ?? .unknown } }