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01fd2260f7
CalendarGregorian currently decomposes `Locale` into its identifer plus preferences, stores the two properties separately, and recreates everytime a `Locale` when needed. This results in us always creating new locales, and calling ICU whenever requesting its properties. While we do have cache in place for `Locale.init(identifier:preferences:)` for nil `preferences`, we are not hitting the cache because `preferences` is always non-nil when calendar is `.current`. Fix this by storing a `Locale` inside calendar so we always hit the cache. This also allows `Locale.autoupdatingCurrent` to work properly -- previously you would not get the right locale back if you set `calendar.locale = Locale.autoupdatingCurrent`. This change fixes that as the identity of the `Locale` is now preserved. Resolves 125169335
74 lines
3.4 KiB
Swift
74 lines
3.4 KiB
Swift
//===----------------------------------------------------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2022 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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// Required to be `AnyObject` because it optimizes the call sites in the `struct` wrapper for efficient function dispatch.
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package protocol _CalendarProtocol: AnyObject, Sendable, CustomDebugStringConvertible {
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init(identifier: Calendar.Identifier, timeZone: TimeZone?, locale: Locale?, firstWeekday: Int?, minimumDaysInFirstWeek: Int?, gregorianStartDate: Date?)
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var identifier: Calendar.Identifier { get }
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var locale: Locale? { get }
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var localeIdentifier: String { get }
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var timeZone: TimeZone { get }
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var firstWeekday: Int { get }
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/// Returns a different first weekday than the Calendar might normally use, based on Locale preferences.
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var preferredFirstWeekday: Int? { get }
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var minimumDaysInFirstWeek: Int { get }
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/// Returns a different min days in first week than the Calendar might normally use, based on Locale preferences.
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var preferredMinimumDaysInFirstweek: Int? { get }
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var gregorianStartDate: Date? { get }
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var isAutoupdating: Bool { get }
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var isBridged: Bool { get }
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var debugDescription: String { get }
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func copy(changingLocale: Locale?, changingTimeZone: TimeZone?, changingFirstWeekday: Int?, changingMinimumDaysInFirstWeek: Int?) -> any _CalendarProtocol
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func hash(into hasher: inout Hasher)
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func minimumRange(of component: Calendar.Component) -> Range<Int>?
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func maximumRange(of component: Calendar.Component) -> Range<Int>?
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func range(of smaller: Calendar.Component, in larger: Calendar.Component, for date: Date) -> Range<Int>?
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func ordinality(of smaller: Calendar.Component, in larger: Calendar.Component, for date: Date) -> Int?
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func dateInterval(of component: Calendar.Component, for date: Date) -> DateInterval?
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func isDateInWeekend(_ date: Date) -> Bool
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func date(from components: DateComponents) -> Date?
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func dateComponents(_ components: Calendar.ComponentSet, from date: Date, in timeZone: TimeZone) -> DateComponents
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func dateComponents(_ components: Calendar.ComponentSet, from date: Date) -> DateComponents
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func date(byAdding components: DateComponents, to date: Date, wrappingComponents: Bool) -> Date?
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func dateComponents(_ components: Calendar.ComponentSet, from start: Date, to end: Date) -> DateComponents
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#if FOUNDATION_FRAMEWORK
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func bridgeToNSCalendar() -> NSCalendar
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#endif
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}
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extension _CalendarProtocol {
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package var preferredFirstWeekday: Int? { nil }
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package var preferredMinimumDaysInFirstweek: Int? { nil }
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package var isAutoupdating: Bool { false }
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package var isBridged: Bool { false }
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package var gregorianStartDate: Date? { nil }
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package var debugDescription: String { "\(identifier)" }
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package var localeIdentifier: String {
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// We use this to provide a consistent answer for hashing and equality -- null is equal to an empty string
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locale?.identifier ?? ""
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}
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}
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