Merge pull request #18 from SomeRandomiOSDev/strict-concurrency

Added strict concurrency checking and Sendable conformances

Half.podspec

@@ -1,7 +1,7 @@
 Pod::Spec.new do |s|
 
  s.name = "Half"
- s.version = "1.4.1"
+ s.version = "1.4.2"
  s.summary = "Swift Half-Precision Floating Point"
  s.description = <<-DESC
  A lightweight framework containing a Swift implementation for a half-precision floating point type for iOS, macOS, tvOS, and watchOS.
@@ -17,8 +17,9 @@ Pod::Spec.new do |s|
  s.tvos.deployment_target = '12.0'
  s.watchos.deployment_target = '4.0'
 
- s.source_files = 'Sources/**/*.{swift,h,c}'
- s.swift_versions = ['5.0']
- s.cocoapods_version = '>= 1.7.3'
+ s.source_files = 'Sources/**/*.{swift,h,c}'
+ s.pod_target_xcconfig = { 'SWIFT_STRICT_CONCURRENCY' => 'complete' }
+ s.swift_versions = ['5.0']
+ s.cocoapods_version = '>= 1.7.3'
 
 end

Half.xcodeproj/project.pbxproj

@@ -1030,6 +1030,7 @@
  SDKROOT = iphoneos;
  SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
  SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+ SWIFT_STRICT_CONCURRENCY = complete;
  SWIFT_VERSION = 5.0;
  TVOS_DEPLOYMENT_TARGET = 12.0;
  VERSIONING_SYSTEM = "apple-generic";
@@ -1094,6 +1095,7 @@
  SDKROOT = iphoneos;
  SWIFT_COMPILATION_MODE = wholemodule;
  SWIFT_OPTIMIZATION_LEVEL = "-O";
+ SWIFT_STRICT_CONCURRENCY = complete;
  SWIFT_VERSION = 5.0;
  TVOS_DEPLOYMENT_TARGET = 12.0;
  VALIDATE_PRODUCT = YES;

Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version:5.7
+// swift-tools-version:5.8
 import PackageDescription
 
 let package = Package(
@@ -17,9 +17,27 @@ let package = Package(
 
  targets: [
  .target(name: "CHalf"),
- .testTarget(name: "CHalfTests", dependencies: ["CHalf", "Half"]),
+ .testTarget(
+ name: "CHalfTests",
+ dependencies: ["CHalf", "Half"],
+ swiftSettings: [
+ .enableExperimentalFeature("StrictConcurrency")
+ ]
+ ),
 
- .target(name: "Half", dependencies: ["CHalf"]),
- .testTarget(name: "HalfTests", dependencies: ["Half"])
+ .target(
+ name: "Half",
+ dependencies: ["CHalf"],
+ swiftSettings: [
+ .enableExperimentalFeature("StrictConcurrency")
+ ]
+ ),
+ .testTarget(
+ name: "HalfTests",
+ dependencies: ["Half"],
+ swiftSettings: [
+ .enableExperimentalFeature("StrictConcurrency")
+ ]
+ )
  ]
 )

Sources/CHalf/include/half.h

@@ -28,10 +28,19 @@
 #define HALF_FUNC HALF_CONST
 #define HALF_OFUNC HALF_FUNC __attribute__((__overloadable__))
 
+// Copied from <Foundation/NSObjCRuntime.h> since that header cannot be imported
+#if !defined(NS_SWIFT_SENDABLE)
+# if defined(__SWIFT_ATTR_SUPPORTS_SENDABLE_DECLS) && __SWIFT_ATTR_SUPPORTS_SENDABLE_DECLS
+# define NS_SWIFT_SENDABLE __attribute__((swift_attr("@Sendable")))
+# else
+# define NS_SWIFT_SENDABLE
+# endif
+#endif // #if !defined(NS_SWIFT_SENDABLE)
+
 typedef union {
  uint16_t _bits;
  __fp16 _fp;
-} __attribute__((packed)) half_t;
+} __attribute__((packed)) NS_SWIFT_SENDABLE half_t;
 
 EXTERN_C HALF_FUNC half_t _half_zero(void);
 EXTERN_C HALF_FUNC half_t _half_epsilon(void);

Sources/Half/Half.swift

@@ -13,12 +13,10 @@ import CHalf
 import CoreGraphics.CGBase
 #endif // #if os(iOS) || os(macOS) || os(tvOS) || os(watchOS)
 
-#if swift(>=5.0)
 // MARK: - Half Definition
 
-#if swift(>=5.1)
 /// A half-precision, floating-point value type.
-@frozen public struct Half {
+@frozen public struct Half: Sendable {
 
  // MARK: Public Properties
 
@@ -36,27 +34,6 @@ import CoreGraphics.CGBase
  self._value = _value
  }
 }
-#else
-/// A half-precision, floating-point value type.
-public struct Half {
-
- // MARK: Public Properties
-
- public var _value: half_t
-
- // MARK: Initialization
-
- @_transparent
- public init() {
- self._value = _half_zero()
- }
-
- @_transparent
- public init(_ _value: half_t) {
- self._value = _value
- }
-}
-#endif
 
 // MARK: - Half Extension
 
@@ -1984,4 +1961,3 @@ extension Half: CustomPlaygroundDisplayConvertible {
  return Float(self)
  }
 }
-#endif // #if swift(>=5.0)