mirror of
https://github.com/pointfreeco/swift-custom-dump.git
synced 2026-04-07 19:17:35 +00:00
Stephen Celis
3860d0beee
* Abbreviate enums in diffs We added the ability to abbreviate nested dumps in #71, but this didn't transfer to diffs. * wip * Fix for old Swift runtime
80 lines
2.3 KiB
Swift
80 lines
2.3 KiB
Swift
enum Box<T> {}
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// MARK: - Equatable
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protocol AnyEquatable {
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static func isEqual(_ lhs: Any, _ rhs: Any) -> Bool
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}
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extension Box: AnyEquatable where T: Equatable {
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static func isEqual(_ lhs: Any, _ rhs: Any) -> Bool {
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lhs as? T == rhs as? T
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}
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}
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func isMirrorEqual(_ lhs: Any, _ rhs: Any) -> Bool {
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func open<LHS>(_: LHS.Type) -> Bool? {
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(Box<LHS>.self as? AnyEquatable.Type)?.isEqual(lhs, rhs)
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}
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if let isEqual = _openExistential(type(of: lhs), do: open) { return isEqual }
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let lhsMirror = Mirror(customDumpReflecting: lhs)
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let rhsMirror = Mirror(customDumpReflecting: rhs)
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guard
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lhsMirror.subjectType == rhsMirror.subjectType,
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lhsMirror.children.count == rhsMirror.children.count
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else { return false }
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guard !lhsMirror.children.isEmpty, !rhsMirror.children.isEmpty
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else {
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return String(describing: lhs) == String(describing: rhs)
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}
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for (lhsChild, rhsChild) in zip(lhsMirror.children, rhsMirror.children) {
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guard
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lhsChild.label == rhsChild.label,
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isMirrorEqual(lhsChild.value, rhsChild.value)
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else { return false }
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}
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return true
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}
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// MARK: - Identifiable
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@available(iOS 13, macOS 10.15, tvOS 13, watchOS 6, *)
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protocol AnyIdentifiable {
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static func isIdentityEqual(_ lhs: Any, _ rhs: Any) -> Bool
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}
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@available(iOS 13, macOS 10.15, tvOS 13, watchOS 6, *)
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extension Box: AnyIdentifiable where T: Identifiable {
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static func isIdentityEqual(_ lhs: Any, _ rhs: Any) -> Bool {
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guard let lhs = lhs as? T, let rhs = rhs as? T else { return false }
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return lhs.id == rhs.id
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}
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}
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func isIdentityEqual(_ lhs: Any, _ rhs: Any) -> Bool {
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guard #available(iOS 13, macOS 10.15, tvOS 13, watchOS 6, *) else { return false }
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func open<LHS>(_: LHS.Type) -> Bool? {
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(Box<LHS>.self as? AnyIdentifiable.Type)?.isIdentityEqual(lhs, rhs)
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}
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return _openExistential(type(of: lhs), do: open) ?? false
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}
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// MARK: - StringProtocol
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protocol AnyStringProtocol {
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static func string(from value: Any) -> String?
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}
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extension Box: AnyStringProtocol where T: StringProtocol {
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static func string(from value: Any) -> String? {
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(value as? T).map { String($0) }
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}
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}
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func stringFromStringProtocol(_ value: Any) -> String? {
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func open<STR>(_: STR.Type) -> String? {
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(Box<STR>.self as? AnyStringProtocol.Type)?.string(from: value)
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}
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return _openExistential(type(of: value), do: open)
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}
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