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afdda3d107
One minor revision: this lifts the proposed restriction against overriding a non-open method with an open one. On reflection, that was inconsistent with the existing rule permitting non-public methods to be overridden with public ones. The restriction on subclassing a non-open class with an open class remains, and is in fact consistent with the existing access rule.
50 lines
1.0 KiB
Swift
50 lines
1.0 KiB
Swift
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public struct ChangeSize {
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public init(version: Int32) {
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self._version = T(version)
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}
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public var version: Int32 {
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get { return Int32(_version) }
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set { _version = T(newValue) }
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}
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#if BEFORE
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typealias T = Int32
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#else
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typealias T = Int64
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#endif
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private var _version: T
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}
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@_fixed_layout open class ChangeFieldOffsetsOfFixedLayout {
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public init(major: Int32, minor: Int32, patch: Int32) {
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self.major = ChangeSize(version: major)
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self.minor = ChangeSize(version: minor)
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self.patch = ChangeSize(version: patch)
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}
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open var major: ChangeSize
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open var minor: ChangeSize
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open var patch: ChangeSize
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open func getVersion() -> String {
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return "\(major.version).\(minor.version).\(patch.version)"
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}
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}
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@_fixed_layout open class ChangeSizeOfSuperclass : ChangeFieldOffsetsOfFixedLayout {
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public init() {
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self.codename = "Big Bang"
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super.init(major: 7, minor: 0, patch: 0)
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}
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open var codename: String
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open override func getVersion() -> String {
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return "\(super.getVersion()) (\(codename))";
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}
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}
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