Merge pull request #162 from p-x9/feature/current-instance

Add property to get current MachOImage/DyldCacheLoaded instance

Sources/MachOKit/DyldCacheLoaded+static.swift

@@ -0,0 +1,20 @@
+//
+//  DyldCacheLoaded+static.swift
+//  MachOKit
+//
+//  Created by p-x9 on 2025/01/09
+//  
+//
+
+#if canImport(Darwin)
+extension DyldCacheLoaded {
+    public static var current: DyldCacheLoaded? {
+        var size = 0
+        guard let ptr = _dyld_get_shared_cache_range(&size),
+              let cache = try? DyldCacheLoaded(ptr: ptr) else {
+            return nil
+        }
+        return cache
+    }
+}
+#endif

Sources/MachOKit/MachOImage+static.swift

@@ -23,6 +23,24 @@ extension MachOImage {
     }
 }
 
+extension MachOImage {
+    /// The `MachOImage` instance of the image for which this function was called
+    public static func current(
+        _ dso: UnsafeRawPointer = #dsohandle
+    ) -> MachOImage {
+        .init(
+            ptr: dso.assumingMemoryBound(to: mach_header.self)
+        )
+    }
+
+    /// The `MachOImage` instance representing the current executable image.
+    public static var currentExecutable: MachOImage {
+        images.first(where: {
+            $0.header.fileType == .execute
+        })!
+    }
+}
+
 extension MachOImage {
     /// Obtains the symbol closest to the specified address.
     ///