Strict null check formatting edit

src/tsconfig.strictNullChecks.json

@@ -323,6 +323,7 @@
 		"./vs/editor/contrib/folding/test/syntaxFold.test.ts",
 		"./vs/editor/contrib/fontZoom/fontZoom.ts",
 		"./vs/editor/contrib/format/format.ts",
+		"./vs/editor/contrib/format/formattingEdit.ts",
 		"./vs/editor/contrib/goToDefinition/clickLinkGesture.ts",
 		"./vs/editor/contrib/goToDefinition/goToDefinition.ts",
 		"./vs/editor/contrib/gotoError/gotoError.ts",

src/vs/editor/contrib/format/formattingEdit.ts

@@ -25,13 +25,18 @@ export class FormattingEdit {
 		}
 
 		if (typeof newEol === 'number') {
-			editor.getModel().pushEOL(newEol);
+			if (editor.hasModel()) {
+				editor.getModel().pushEOL(newEol);
+			}
 		}
 
 		return singleEdits;
 	}
 
 	private static _isFullModelReplaceEdit(editor: ICodeEditor, edit: ISingleEditOperation): boolean {
+		if (!editor.hasModel()) {
+			return false;
+		}
 		const model = editor.getModel();
 		const editRange = model.validateRange(edit.range);
 		const fullModelRange = model.getFullModelRange();