Fix AGWeakAttribute link issue

Author: Kyle-Ye

Sources/OpenAttributeGraph/Attribute/Weak/AnyWeakAttribute.swift

@@ -7,25 +7,19 @@
 
 public import OpenAttributeGraphCxx
 
-// FIXME: For some unknown reason, AnyWeakAttribute and WeakAttribute's symbol can't be linked.
-
 extension AnyWeakAttribute {
-    @_alwaysEmitIntoClient
     public init(_ attribute: AnyAttribute?) {
         self = __OAGCreateWeakAttribute(attribute ?? .nil)
     }
 
-    @_alwaysEmitIntoClient
     public init<Value>(_ weakAttribute: WeakAttribute<Value>) {
         self = weakAttribute.base
     }
 
-    @_alwaysEmitIntoClient
     public func unsafeCast<Value>(to _: Value.Type) -> WeakAttribute<Value> {
         WeakAttribute(base: self)
     }
 
-    @_alwaysEmitIntoClient
     public var attribute: AnyAttribute? {
         get {
             let attribute = __OAGWeakAttributeGetAttribute(self)
@@ -38,21 +32,14 @@ extension AnyWeakAttribute {
 }
 
 extension AnyWeakAttribute: Swift.Hashable {
-    @_alwaysEmitIntoClient
     public static func == (lhs: AnyWeakAttribute, rhs: AnyWeakAttribute) -> Bool {
         lhs._details.identifier == rhs._details.identifier && lhs._details.seed == rhs._details.seed
     }
 
-    @_alwaysEmitIntoClient
     public func hash(into hasher: inout Hasher) {
         hasher.combine(_details.identifier)
         hasher.combine(_details.seed)
     }
-
-    @_alwaysEmitIntoClient
-    public var hashValue: Int {
-        _hashValue(for: self)
-    }
 }
 
 extension AnyWeakAttribute: Swift.CustomStringConvertible {

Sources/OpenAttributeGraph/Attribute/Weak/WeakAttribute.swift

@@ -7,65 +7,52 @@
 
 public import OpenAttributeGraphCxx
 
-// FIXME: For some unknown reason, AnyWeakAttribute and WeakAttribute's symbol can't be linked.
-
 @frozen
 @propertyWrapper
 @dynamicMemberLookup
 public struct WeakAttribute<Value> {
-    @usableFromInline
     var base: AnyWeakAttribute
 
-    @_alwaysEmitIntoClient
     public init(base: AnyWeakAttribute) {
         self.base = base
     }
 
-    @_alwaysEmitIntoClient
     public init() {
         base = AnyWeakAttribute(_details: .init(identifier: .init(rawValue: 0), seed: 0))
     }
 
-    @_alwaysEmitIntoClient
     public init(_ attribute: Attribute<Value>) {
         base = AnyWeakAttribute(attribute.identifier)
     }
 
-    @_alwaysEmitIntoClient
     public init(_ attribute: Attribute<Value>?) {
         base = AnyWeakAttribute(attribute?.identifier)
     }
 
-    @_alwaysEmitIntoClient
     public var wrappedValue: Value? {
         OAGGraphGetWeakValue(base, type: Value.self)
             .value?
             .assumingMemoryBound(to: Value.self)
             .pointee
     }
 
-    @_alwaysEmitIntoClient
     public var projectedValue: Attribute<Value>?{
         get { attribute }
         set { attribute = newValue }
         _modify { yield &attribute }
     }
 
-    @_alwaysEmitIntoClient
     public subscript<Member>(dynamicMember keyPath: KeyPath<Value, Member>) -> Attribute<Member>? {
         attribute?[keyPath: keyPath]
     }
 
-    @_alwaysEmitIntoClient
     public var attribute: Attribute<Value>? {
         get { base.attribute?.unsafeCast(to: Value.self) }
         set { base.attribute = newValue?.identifier }
     }
 
-    @_alwaysEmitIntoClient
     public var value: Value? { wrappedValue }
 
-    @_alwaysEmitIntoClient
     public func changedValue(options: OAGValueOptions) -> (value: Value, changed: Bool)? {
         let value = OAGGraphGetWeakValue(base, options: options, type: Value.self)
         guard let ptr = value.value else {
@@ -85,5 +72,4 @@ extension WeakAttribute: CustomStringConvertible {
 }
 
 @_silgen_name("OAGGraphGetWeakValue")
-@_alwaysEmitIntoClient
 private func OAGGraphGetWeakValue<Value>(_ attribute: AnyWeakAttribute, options: OAGValueOptions = [], type: Value.Type = Value.self) -> OAGWeakValue

Sources/OpenAttributeGraphCxx/include/OpenAttributeGraph/OAGWeakAttribute.h

@@ -11,12 +11,12 @@
 
 OAG_ASSUME_NONNULL_BEGIN
 
-typedef struct OAG_SWIFT_NAME(AnyWeakAttribute) OAGWeakAttribute {
+typedef OAG_SWIFT_STRUCT struct {
     struct {
         OAGAttribute identifier;
         uint32_t seed;
     } _details;
-} OAGWeakAttribute;
+} OAGWeakAttribute OAG_SWIFT_NAME(AnyWeakAttribute);
 
 OAG_EXTERN_C_BEGIN
 

Tests/OpenAttributeGraphCompatibilityTests/Attribute/Weak/AnyWeakAttributeCompatibilityTests.swift

@@ -37,7 +37,7 @@ struct AnyWeakAttributeCompatibilityTests {
     @Test
     func dict() {
         let w1 = AnyWeakAttribute(nil)
-        let w2 = AnyWeakAttribute(WeakAttribute<Void>(nil))
+        let w2 = AnyWeakAttribute(Attribute(value: 0).identifier)
         let dict: [AnyWeakAttribute: Int] = [
             w1: 1,
             w2: 2,