mirror of
https://github.com/apple/swift-foundation.git
synced 2025-05-21 04:54:55 +08:00
e9b2f68e8a
* rdar://107778676 Stop vendoring the Collections package * rdar://107778676 Fix test expectation AttributedString.CharacterView needs to round all indices down to the nearest Character boundary to avoid semantic issues with its Collection conformance. This means that CharacterView slices can never start or end in between Character boundaries. * Remove a stray print statement
104 lines
3.5 KiB
Swift
104 lines
3.5 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) 2020-2023 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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#if FOUNDATION_FRAMEWORK
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@_implementationOnly @_spi(Unstable) import CollectionsInternal
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#else
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import _RopeModule
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#endif
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@available(macOS 12, iOS 15, tvOS 15, watchOS 8, *)
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extension AttributedString.Runs {
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@dynamicMemberLookup
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public struct Run : Sendable {
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internal typealias _AttributeStorage = AttributedString._AttributeStorage
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internal typealias _InternalRun = AttributedString._InternalRun
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internal let _internal: _InternalRun
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internal let _range: Range<AttributedString.Index>
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internal let _guts: AttributedString.Guts
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internal init(
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_internal run: _InternalRun,
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_ range: Range<AttributedString.Index>,
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_ guts: AttributedString.Guts
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) {
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self._internal = run
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self._range = range
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self._guts = guts
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}
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internal init(_ other: Self) {
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self._internal = other._internal
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self._range = other._range
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self._guts = other._guts
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}
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}
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}
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@available(macOS 12, iOS 15, tvOS 15, watchOS 8, *)
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extension AttributedString.Runs.Run: Equatable {
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public static func == (lhs: Self, rhs: Self) -> Bool {
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lhs._internal == rhs._internal
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}
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}
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@available(macOS 12, iOS 15, tvOS 15, watchOS 8, *)
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extension AttributedString.Runs.Run: CustomStringConvertible {
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public var description: String {
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AttributedSubstring(_guts, range).description
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}
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}
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@available(macOS 12, iOS 15, tvOS 15, watchOS 8, *)
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extension AttributedString.Runs.Run {
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public var range: Range<AttributedString.Index> { _range }
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internal var startIndex: AttributedString.Index { _range.lowerBound }
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internal var _attributes: _AttributeStorage {
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return _internal.attributes
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}
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internal func run(clampedTo range: Range<AttributedString.Index>) -> Self {
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var newInternal = _internal
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let newRange = _range.clamped(to: range)
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newInternal.length = _guts.utf8Distance(from: newRange.lowerBound, to: newRange.upperBound)
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return Self(_internal: newInternal, newRange, _guts)
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}
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public var attributes: AttributeContainer {
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AttributeContainer(self._attributes)
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}
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}
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@available(macOS 12, iOS 15, tvOS 15, watchOS 8, *)
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extension AttributedString.Runs.Run {
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@preconcurrency
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public subscript<K: AttributedStringKey>(dynamicMember keyPath: KeyPath<AttributeDynamicLookup, K>) -> K.Value? where K.Value : Sendable {
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get { self[K.self] }
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}
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@preconcurrency
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public subscript<K : AttributedStringKey>(_: K.Type) -> K.Value? where K.Value : Sendable {
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get { _internal.attributes[K.self] }
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}
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public subscript<S: AttributeScope>(dynamicMember keyPath: KeyPath<AttributeScopes, S.Type>) -> ScopedAttributeContainer<S> {
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get { ScopedAttributeContainer(_internal.attributes) }
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}
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internal subscript<S: AttributeScope>(_ scope: S.Type) -> ScopedAttributeContainer<S> {
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get { ScopedAttributeContainer(_internal.attributes) }
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}
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}
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