Improve atom key description (#172)

Author: ra1028

Sources/Atoms/Core/AtomKey.swift

@@ -8,7 +8,7 @@ internal struct AtomKey: Hashable, Sendable, CustomStringConvertible {
         let atomLabel = String(describing: anyAtomType)
 
         if let scopeKey {
-            return atomLabel + "-scoped:\(scopeKey)"
+            return atomLabel + " scope:\(scopeKey)"
         }
         else {
             return atomLabel

Sources/Atoms/Core/ScopeKey.swift

@@ -8,7 +8,7 @@ internal struct ScopeKey: Hashable, Sendable, CustomStringConvertible {
 
     @usableFromInline
     var description: String {
-        String(hashValue, radix: 36, uppercase: false)
+        "0x\(String(UInt(bitPattern: identifier), radix: 16))"
     }
 
     private init(token: Token) {

Tests/AtomsTests/Core/AtomKeyTests.swift

@@ -47,6 +47,6 @@ final class AtomKeyTests: XCTestCase {
         let key1 = AtomKey(atom, scopeKey: scopeToken.key)
 
         XCTAssertEqual(key0.description, "TestAtom<Int>")
-        XCTAssertEqual(key1.description, "TestAtom<Int>-scoped:\(scopeToken.key.description)")
+        XCTAssertEqual(key1.description, "TestAtom<Int> scope:\(scopeToken.key.description)")
     }
 }

Tests/AtomsTests/Core/ScopeKeyTests.swift

@@ -0,0 +1,12 @@
+import XCTest
+
+@testable import Atoms
+
+final class ScopeKeyTests: XCTestCase {
+    func testDescription() {
+        let token = ScopeKey.Token()
+        let objectAddress = String(UInt(bitPattern: ObjectIdentifier(token)), radix: 16)
+
+        XCTAssertEqual(token.key.description, "0x\(objectAddress)")
+    }
+}

Tests/AtomsTests/SnapshotTests.swift

@@ -97,8 +97,8 @@ final class SnapshotTests: XCTestCase {
               "TestAtom<Value2>" -> "TestAtom<Value3>"
               "TestAtom<Value3>"
               "TestAtom<Value3>" -> "Module/View.swift" [label="line:10"]
-              "TestAtom<Value4>-scoped:\(scopeToken.key.description)"
-              "TestAtom<Value4>-scoped:\(scopeToken.key.description)" -> "Module/View.swift" [label="line:10"]
+              "TestAtom<Value4> scope:\(scopeToken.key.description)"
+              "TestAtom<Value4> scope:\(scopeToken.key.description)" -> "Module/View.swift" [label="line:10"]
             }
             """
         )