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// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2016 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See http://swift.org/LICENSE.txt for license information
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
@_implementationOnly import CoreFoundation
internal final class _NSCFSet : NSMutableSet {
deinit {
_CFDeinit(self)
_CFZeroUnsafeIvars(&_storage)
}
required init() {
fatalError()
}
required init?(coder aDecoder: NSCoder) {
fatalError()
}
required init(capacity numItems: Int) {
fatalError()
}
override var classForCoder: AnyClass {
return NSMutableSet.self
}
override var count: Int {
return CFSetGetCount(_cfObject)
}
override func member(_ object: Any) -> Any? {
guard let value = CFSetGetValue(_cfObject, unsafeBitCast(__SwiftValue.store(object), to: UnsafeRawPointer.self)) else {
return nil
}
return __SwiftValue.fetch(nonOptional: unsafeBitCast(value, to: AnyObject.self))
}
override func objectEnumerator() -> NSEnumerator {
var objArray: [AnyObject] = []
let cf = _cfObject
let count = CFSetGetCount(cf)
let objects = UnsafeMutablePointer<UnsafeRawPointer?>.allocate(capacity: count)
CFSetGetValues(cf, objects)
for idx in 0..<count {
let obj = unsafeBitCast(objects.advanced(by: idx).pointee!, to: AnyObject.self)
objArray.append(obj)
}
objects.deinitialize(count: 1)
objects.deallocate()
return NSGeneratorEnumerator(objArray.makeIterator())
}
override func add(_ object: Any) {
CFSetAddValue(_cfMutableObject, unsafeBitCast(__SwiftValue.store(object), to: UnsafeRawPointer.self))
}
override func remove(_ object: Any) {
CFSetRemoveValue(_cfMutableObject, unsafeBitCast(__SwiftValue.store(object), to: UnsafeRawPointer.self))
}
}
internal func _CFSwiftSetGetCount(_ set: AnyObject) -> CFIndex {
return (set as! NSSet).count
}
internal func _CFSwiftSetGetCountOfValue(_ set: AnyObject, value: AnyObject) -> CFIndex {
if _CFSwiftSetContainsValue(set, value: value) {
return 1
} else {
return 0
}
}
internal func _CFSwiftSetContainsValue(_ set: AnyObject, value: AnyObject) -> Bool {
return _CFSwiftSetGetValue(set, value: value, key: value) != nil
}
internal func _CFSwiftSetGetValues(_ set: AnyObject, _ values: UnsafeMutablePointer<Unmanaged<AnyObject>?>?) {
var idx = 0
if values == nil {
return
}
let set = set as! NSSet
if type(of: set) === NSSet.self || type(of: set) === NSMutableSet.self {
for obj in set._storage {
values?[idx] = Unmanaged<AnyObject>.passUnretained(obj)
idx += 1
}
} else {
set.enumerateObjects( { v, _ in
let value = __SwiftValue.store(v)
values?[idx] = Unmanaged<AnyObject>.passUnretained(value)
set._storage.update(with: value)
idx += 1
})
}
}
internal func _CFSwiftSetGetValue(_ set: AnyObject, value: AnyObject, key: AnyObject) -> Unmanaged<AnyObject>? {
let set = set as! NSSet
if type(of: set) === NSSet.self || type(of: set) === NSMutableSet.self {
if let idx = set._storage.firstIndex(of: value as! NSObject){
return Unmanaged<AnyObject>.passUnretained(set._storage[idx])
}
} else {
let v = __SwiftValue.store(set.member(value))
if let obj = v {
set._storage.update(with: obj)
return Unmanaged<AnyObject>.passUnretained(obj)
}
}
return nil
}
internal func _CFSwiftSetGetValueIfPresent(_ set: AnyObject, object: AnyObject, value: UnsafeMutablePointer<Unmanaged<AnyObject>?>?) -> Bool {
if let val = _CFSwiftSetGetValue(set, value: object, key: object) {
value?.pointee = val
return true
} else {
value?.pointee = nil
return false
}
}
internal func _CFSwiftSetApplyFunction(_ set: AnyObject, applier: @convention(c) (AnyObject, UnsafeMutableRawPointer) -> Void, context: UnsafeMutableRawPointer) {
(set as! NSSet).enumerateObjects({ value, _ in
applier(__SwiftValue.store(value), context)
})
}
internal func _CFSwiftSetMember(_ set: CFTypeRef, _ object: CFTypeRef) -> Unmanaged<CFTypeRef>? {
return _CFSwiftSetGetValue(set, value: object, key: object)
}
internal func _CFSwiftSetAddValue(_ set: AnyObject, value: AnyObject) {
(set as! NSMutableSet).add(value)
}
internal func _CFSwiftSetReplaceValue(_ set: AnyObject, value: AnyObject) {
let set = set as! NSMutableSet
if (set.contains(value)){
set.remove(value)
set.add(value)
}
}
internal func _CFSwiftSetSetValue(_ set: AnyObject, value: AnyObject) {
let set = set as! NSMutableSet
set.remove(value)
set.add(value)
}
internal func _CFSwiftSetRemoveValue(_ set: AnyObject, value: AnyObject) {
(set as! NSMutableSet).remove(value)
}
internal func _CFSwiftSetRemoveAllValues(_ set: AnyObject) {
(set as! NSMutableSet).removeAllObjects()
}
internal func _CFSwiftSetCreateCopy(_ set: AnyObject) -> Unmanaged<AnyObject> {
return Unmanaged<AnyObject>.passRetained((set as! NSSet).copy() as! NSObject)
}
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