Explicitly cancel observations in LineEndingScanner (#1648)

coteditor · Jun 27, 2024 · 781e9fd · 781e9fd
1 parent f55ab6c
commit 781e9fd
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diff --git a/CotEditor/Sources/Document.swift b/CotEditor/Sources/Document.swift
@@ -575,6 +575,7 @@ final class Document: NSDocument, AdditionalDocumentPreparing, EncodingChanging
         super.close()
 
         self.textStorageObserver?.cancel()
+        self.lineEndingScanner.cancel()
         self.analyzer.cancel()
     }
 

diff --git a/CotEditor/Sources/LineEndingScanner.swift b/CotEditor/Sources/LineEndingScanner.swift
@@ -77,6 +77,14 @@ final class LineEndingScanner {
 
     // MARK: Public Methods
 
+    /// Cancels all observations.
+    func cancel() {
+
+        self.lineEndingObserver?.cancel()
+        self.storageObserver?.cancel()
+    }
+
+
     /// The line endings mostly occurred in the storage.
     var majorLineEnding: LineEnding? {