Fix opened files

Author: RayZhao1998

CodeEdit/Breadcrumbs/BreadcrumbsView.swift

@@ -56,9 +56,9 @@ struct BreadcrumbsView: View {
     private func fileInfo(_ file: WorkspaceClient.FileItem) {
         self.fileItems = []
         var currentFile: WorkspaceClient.FileItem? = file
-        while currentFile != nil {
-            self.fileItems.insert(currentFile!, at: 0)
-            currentFile = currentFile!.parent
+        while let currentFileLoop = currentFile {
+            self.fileItems.insert(currentFileLoop, at: 0)
+            currentFile = currentFileLoop.parent
         }
     }
 }

CodeEdit/Documents/WorkspaceDocument.swift

@@ -138,7 +138,9 @@ class WorkspaceDocument: NSDocument, ObservableObject, NSToolbarDelegate {
                     let state = try JSONDecoder().decode(WorkspaceSelectionState.self,
                                                          from: Data(contentsOf: selectionStateFile))
                     self.selectionState.fileItems = state.fileItems
-                    state.openFileItems.forEach { item in
+                    state.openFileItems
+                        .compactMap { try? workspaceClient?.getFileItem($0.id) }
+                        .forEach { item in
                         self.openFile(item: item)
                     }
                     self.selectionState.selectedId = state.selectedId

CodeEditModules/Modules/WorkspaceClient/src/Model/FileItem.swift

@@ -13,7 +13,6 @@ public extension WorkspaceClient {
         case id
         case url
         case children
-        case parent
     }
 
     class FileItem: Hashable, Identifiable, Comparable, Codable {
@@ -146,10 +145,14 @@ public extension WorkspaceClient {
             }
         }
 
+        // MARK: Hashable
         public func hash(into hasher: inout Hasher) {
             hasher.combine(id)
+            hasher.combine(url)
+            hasher.combine(children)
         }
 
+        // MARK: Codable
         public func encode(to encoder: Encoder) throws {
             var container = encoder.container(keyedBy: FileItemCodingKeys.self)
             try container.encode(id, forKey: .id)
@@ -161,7 +164,7 @@ public extension WorkspaceClient {
             let values = try decoder.container(keyedBy: FileItemCodingKeys.self)
             id = try values.decode(String.self, forKey: .id)
             url = try values.decode(URL.self, forKey: .url)
-            children = try values.decode([FileItem].self, forKey: .children)
+            children = try values.decode([FileItem]?.self, forKey: .children)
         }
     }
 }