refactor: . Extract method canSaveEdits()

Author: claremacrae

src/Suggestor/EditorSuggestorPopup.ts

@@ -72,7 +72,7 @@ export class EditorSuggestor extends EditorSuggest<SuggestInfoWithContext> {
 
         // If we can't save the file, we should not allow users to choose dependencies.
         // See https://github.com/obsidian-tasks-group/obsidian-tasks/issues/2872
-        const canSaveEdits = markdownFileInfo instanceof MarkdownView;
+        const canSaveEdits = this.canSaveEdits(markdownFileInfo);
 
         const suggestions: SuggestInfo[] =
             getUserSelectedTaskFormat().buildSuggestions?.(
@@ -93,6 +93,10 @@ export class EditorSuggestor extends EditorSuggest<SuggestInfoWithContext> {
         return context.editor.cm.state.field(editorInfoField);
     }
 
+    private canSaveEdits(markdownFileInfo: any) {
+        return markdownFileInfo instanceof MarkdownView;
+    }
+
     renderSuggestion(value: SuggestInfoWithContext, el: HTMLElement) {
         el.setText(value.displayText);
     }
@@ -183,7 +187,7 @@ file: '${newTask.path}'
         // multiple ID fields can be added to individual task lines.
 
         const markdownFileInfo = this.getMarkdownFileInfo(value.context);
-        if (markdownFileInfo instanceof MarkdownView) {
+        if (this.canSaveEdits(markdownFileInfo)) {
             await markdownFileInfo.save();
         }
     }