Disable file/dispatch-related code in Foundation for WASI

Author: MaxDesiatov

Sources/Foundation/CGFloat.swift

@@ -9,7 +9,7 @@
 
 @frozen
 public struct CGFloat {
-#if arch(i386) || arch(arm)
+#if arch(i386) || arch(arm) || arch(wasm32)
     /// The native type used to store the CGFloat, which is Float on
     /// 32-bit architectures and Double on 64-bit architectures.
     public typealias NativeType = Float
@@ -185,7 +185,7 @@ extension CGFloat : BinaryFloatingPoint {
 
     @_transparent
     public init(bitPattern: UInt) {
-#if arch(i386) || arch(arm)
+#if arch(i386) || arch(arm) || arch(wasm32)
         native = NativeType(bitPattern: UInt32(bitPattern))
 #elseif arch(x86_64) || arch(arm64) || arch(s390x) || arch(powerpc64) || arch(powerpc64le)
         native = NativeType(bitPattern: UInt64(bitPattern))

Sources/Foundation/CharacterSet.swift

@@ -157,6 +157,7 @@ public struct CharacterSet : ReferenceConvertible, Equatable, Hashable, SetAlgeb
         _wrapped = _SwiftNSCharacterSet(immutableObject: NSCharacterSet(bitmapRepresentation: data))
     }
 
+#if !os(WASI)
     /// Initialize with the contents of a file.
     ///
     /// Returns `nil` if there was an error reading the file.
@@ -168,6 +169,7 @@ public struct CharacterSet : ReferenceConvertible, Equatable, Hashable, SetAlgeb
             return nil
         }
     }
+#endif
 
     public func hash(into hasher: inout Hasher) {
         hasher.combine(_mapUnmanaged { $0 })

Sources/Foundation/Data.swift

@@ -12,6 +12,22 @@
 
 #if DEPLOYMENT_RUNTIME_SWIFT
 
+#if canImport(Glibc)
+@usableFromInline let calloc = Glibc.calloc
+@usableFromInline let malloc = Glibc.malloc
+@usableFromInline let free = Glibc.free
+@usableFromInline let memset = Glibc.memset
+@usableFromInline let memcpy = Glibc.memcpy
+@usableFromInline let memcmp = Glibc.memcmp
+#elseif canImport(WASILibc)
+@usableFromInline let calloc = WASILibc.calloc
+@usableFromInline let malloc = WASILibc.malloc
+@usableFromInline let free = WASILibc.free
+@usableFromInline let memset = WASILibc.memset
+@usableFromInline let memcpy = WASILibc.memcpy
+@usableFromInline let memcmp = WASILibc.memcmp
+#endif
+
 #if !canImport(Darwin)
 @inlinable // This is @inlinable as trivially computable.
 internal func malloc_good_size(_ size: Int) -> Int {
@@ -23,6 +39,8 @@ internal func malloc_good_size(_ size: Int) -> Int {
 
 #if canImport(Glibc)
 import Glibc
+#elseif canImport(WASILibc)
+import WASILibc
 #endif
 
 internal func __NSDataInvokeDeallocatorUnmap(_ mem: UnsafeMutableRawPointer, _ length: Int) {
@@ -562,30 +580,30 @@ internal class __NSSwiftData : NSData {
     override var classForCoder: AnyClass {
         return NSData.self
     }
-    
+
     override init() {
         fatalError()
     }
-    
+
     private init(_correctly: Void) {
         super.init()
     }
-    
+
     convenience init(backing: __DataStorage, range: Range<Data.Index>) {
         self.init(_correctly: ())
         _backing = backing
         _range = range
     }
-    
+
     public required init?(coder aDecoder: NSCoder) {
         fatalError("This should have been encoded as NSData.")
     }
-    
+
     override func encode(with aCoder: NSCoder) {
         // This should encode this object just like NSData does, and .classForCoder should do the rest.
         super.encode(with: aCoder)
     }
-    
+
     override var length: Int {
         return _range.upperBound - _range.lowerBound
     }
@@ -608,7 +626,7 @@ internal class __NSSwiftData : NSData {
     override func copy(with zone: NSZone? = nil) -> Any {
         return self
     }
-    
+
     override func mutableCopy(with zone: NSZone? = nil) -> Any {
         return NSMutableData(bytes: bytes, length: length)
     }
@@ -654,7 +672,7 @@ public struct Data : ReferenceConvertible, Equatable, Hashable, RandomAccessColl
         @usableFromInline typealias Buffer = (UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8,
                                               UInt8, UInt8, UInt8, UInt8, UInt8, UInt8) //len  //enum
         @usableFromInline var bytes: Buffer
-#elseif arch(i386) || arch(arm)
+#elseif arch(i386) || arch(arm) || arch(wasm32)
         @usableFromInline typealias Buffer = (UInt8, UInt8, UInt8, UInt8,
                                               UInt8, UInt8) //len  //enum
         @usableFromInline var bytes: Buffer
@@ -683,7 +701,7 @@ public struct Data : ReferenceConvertible, Equatable, Hashable, RandomAccessColl
             assert(count <= MemoryLayout<Buffer>.size)
 #if arch(x86_64) || arch(arm64) || arch(s390x) || arch(powerpc64) || arch(powerpc64le)
             bytes = (UInt8(0), UInt8(0), UInt8(0), UInt8(0), UInt8(0), UInt8(0), UInt8(0), UInt8(0), UInt8(0), UInt8(0), UInt8(0), UInt8(0), UInt8(0), UInt8(0))
-#elseif arch(i386) || arch(arm)
+#elseif arch(i386) || arch(arm) || arch(wasm32)
             bytes = (UInt8(0), UInt8(0), UInt8(0), UInt8(0), UInt8(0), UInt8(0))
 #else
     #error("This architecture isn't known. Add it to the 32-bit or 64-bit line.")
@@ -866,7 +884,7 @@ public struct Data : ReferenceConvertible, Equatable, Hashable, RandomAccessColl
 
 #if arch(x86_64) || arch(arm64) || arch(s390x) || arch(powerpc64) || arch(powerpc64le)
     @usableFromInline internal typealias HalfInt = Int32
-#elseif arch(i386) || arch(arm)
+#elseif arch(i386) || arch(arm) || arch(wasm32)
     @usableFromInline internal typealias HalfInt = Int16
 #else
     #error("This architecture isn't known. Add it to the 32-bit or 64-bit line.")
@@ -2012,6 +2030,7 @@ public struct Data : ReferenceConvertible, Equatable, Hashable, RandomAccessColl
         }
     }
 
+#if !os(WASI)
     /// Initialize a `Data` with the contents of a `URL`.
     ///
     /// - parameter url: The `URL` to read.
@@ -2024,6 +2043,7 @@ public struct Data : ReferenceConvertible, Equatable, Hashable, RandomAccessColl
             return Data(bytes: d.bytes, count: d.length)
         }
     }
+#endif
 
     /// Initialize a `Data` from a Base-64 encoded String using the given options.
     ///
@@ -2287,6 +2307,7 @@ public struct Data : ReferenceConvertible, Equatable, Hashable, RandomAccessColl
     }
 #endif
 
+#if !os(WASI)
     /// Write the contents of the `Data` to a location.
     ///
     /// - parameter url: The location to write the data into.
@@ -2307,6 +2328,7 @@ public struct Data : ReferenceConvertible, Equatable, Hashable, RandomAccessColl
 #endif
         }
     }
+#endif
 
     // MARK: -
 

Sources/Foundation/JSONSerialization.swift

@@ -267,6 +267,7 @@ open class JSONSerialization : NSObject {
 
     }
 
+    #if !os(WASI)
     /* Write JSON data into a stream. The stream should be opened and configured. The return value is the number of bytes written to the stream, or 0 on error. All other behavior of this method is the same as the dataWithJSONObject:options:error: method.
      */
     open class func writeJSONObject(_ obj: Any, toStream stream: OutputStream, options opt: WritingOptions) throws -> Int {
@@ -298,6 +299,7 @@ open class JSONSerialization : NSObject {
         } while stream.hasBytesAvailable
         return try jsonObject(with: data, options: opt)
     }
+    #endif
 }
 
 //MARK: - Encoding Detection

Sources/Foundation/NSArray.swift

@@ -56,7 +56,7 @@ open class NSArray : NSObject, NSCopying, NSMutableCopying, NSSecureCoding, NSCo
     public required convenience init(arrayLiteral elements: Any...) {
         self.init(array: elements)
     }
-    
+
     public required convenience init?(coder aDecoder: NSCoder) {
         guard aDecoder.allowsKeyedCoding else {
             preconditionFailure("Unkeyed coding is unsupported.")
@@ -120,15 +120,15 @@ open class NSArray : NSObject, NSCopying, NSMutableCopying, NSSecureCoding, NSCo
             }
         }
     }
-    
+
     public static var supportsSecureCoding: Bool {
         return true
     }
-    
+
     open override func copy() -> Any {
         return copy(with: nil)
     }
-    
+
     open func copy(with zone: NSZone? = nil) -> Any {
         if type(of: self) === NSArray.self {
             // return self for immutable type
@@ -140,11 +140,11 @@ open class NSArray : NSObject, NSCopying, NSMutableCopying, NSSecureCoding, NSCo
         }
         return NSArray(array: self.allObjects)
     }
-    
+
     open override func mutableCopy() -> Any {
         return mutableCopy(with: nil)
     }
-    
+
     open func mutableCopy(with zone: NSZone? = nil) -> Any {
         if type(of: self) === NSArray.self || type(of: self) === NSMutableArray.self {
             // always create and return an NSMutableArray
@@ -440,6 +440,7 @@ open class NSArray : NSObject, NSCopying, NSMutableCopying, NSSecureCoding, NSCo
         return objects
     }
 
+#if !os(WASI)
     open func write(to url: URL) throws {
         let pListData = try PropertyListSerialization.data(fromPropertyList: self, format: .xml, options: 0)
         try pListData.write(to: url, options: .atomic)
@@ -463,6 +464,7 @@ open class NSArray : NSObject, NSCopying, NSMutableCopying, NSSecureCoding, NSCo
             return false
         }
     }
+#endif
 
     open func objects(at indexes: IndexSet) -> [Any] {
         var objs = [Any]()
@@ -653,6 +655,7 @@ open class NSArray : NSObject, NSCopying, NSMutableCopying, NSSecureCoding, NSCo
         return lastEqual ? result + 1 : result
     }
 
+#if !os(WASI)
     public convenience init(contentsOf url: URL, error: ()) throws {
         let plistDoc = try Data(contentsOf: url)
         guard let plistArray = try PropertyListSerialization.propertyList(from: plistDoc, options: [], format: nil) as? Array<Any>
@@ -679,6 +682,7 @@ open class NSArray : NSObject, NSCopying, NSMutableCopying, NSSecureCoding, NSCo
             return nil
         }
     }
+#endif
 
     open func pathsMatchingExtensions(_ filterTypes: [String]) -> [String] {
         guard !filterTypes.isEmpty else {

Sources/Foundation/NSCalendar.swift

@@ -1378,6 +1378,7 @@ internal class _NSCopyOnWriteCalendar: NSCalendar {
     }
 }
 
+#if !os(WASI)
 // This notification is posted through [NSNotificationCenter defaultCenter]
 // when the system day changes. Register with "nil" as the object of this
 // notification. If the computer/device is asleep when the day changed,
@@ -1391,6 +1392,7 @@ internal class _NSCopyOnWriteCalendar: NSCalendar {
 extension NSNotification.Name {
     public static let NSCalendarDayChanged = NSNotification.Name(rawValue: "NSCalendarDayChangedNotification")
 }
+#endif
 
 
 extension NSCalendar: _SwiftBridgeable {

Sources/Foundation/NSCharacterSet.swift

@@ -184,6 +184,7 @@ open class NSCharacterSet : NSObject, NSCopying, NSMutableCopying, NSSecureCodin
         _CFCharacterSetInitWithBitmapRepresentation(_cfMutableObject, data._cfObject)
     }
 
+#if !os(WASI)
     public convenience init?(contentsOfFile fName: String) {
         do {
            let data = try Data(contentsOf: URL(fileURLWithPath: fName))
@@ -329,6 +330,7 @@ open class NSCharacterSet : NSObject, NSCopying, NSMutableCopying, NSSecureCodin
             aCoder.encode(true, forKey: .characterSetIsInvertedKey)
         }
     }
+#endif
 
     open func characterIsMember(_ aCharacter: unichar) -> Bool {
         return longCharacterIsMember(UInt32(aCharacter))

Sources/Foundation/NSCoder.swift

@@ -36,12 +36,12 @@ extension NSCoder {
 /// Any object class that should be codable must adopt the NSCoding protocol and
 /// implement its methods.
 public protocol NSCoding {
-    
+
     /// Encodes an instance of a conforming class using a given archiver.
     ///
     /// - Parameter aCoder: An archiver object.
     func encode(with aCoder: NSCoder)
-    
+
     /// Initializes an object from data in a given unarchiver.
     ///
     /// - Parameter aDecoder: An unarchiver object.
@@ -76,7 +76,7 @@ public protocol NSCoding {
 ///   In addition, the class must override its `NSSecureCoding` method to return
 ///   `true`.
 public protocol NSSecureCoding : NSCoding {
-    
+
     static var supportsSecureCoding: Bool { get }
 }
 

Sources/Foundation/NSConcreteValue.swift

@@ -110,7 +110,7 @@ internal class NSConcreteValue : NSValue {
         let boundBytes = self.value.bindMemory(to: UInt8.self, capacity: self._size)
         return Data(bytes: boundBytes, count: self._size).description
     }
-    
+
     convenience required init?(coder aDecoder: NSCoder) {
         guard aDecoder.allowsKeyedCoding else {
             preconditionFailure("Unkeyed coding is unsupported.")