From 840c6051b7c7ab2ec233251c4c4296a742a51a14 Mon Sep 17 00:00:00 2001
From: XuShuo <xushuo@xiaohongshu.net>
Date: Mon, 27 May 2024 13:06:54 +0800
Subject: [PATCH] fix: fix nil sheet model append nil pointer reference.

---
 build.go      | 3 +++
 build_test.go | 8 ++++++++
 2 files changed, 11 insertions(+)

diff --git a/build.go b/build.go
index c90232a..bc09149 100644
--- a/build.go
+++ b/build.go
@@ -84,6 +84,9 @@ func write(sheetModels []SheetModel, opts ...Option) (*excelize.File, error) {
 	f := excelize.NewFile()
 	sheetLinesCount := make(map[string]int)
 	for _, sheetModel := range sheetModels {
+		if sheetModel == nil {
+			return nil, errors.New("nil reference row append is not allowed")
+		}
 		sheetName := sheetModel.SheetName()
 		if sheetName == "" {
 			return nil, errors.New("sheetModel must have a sheet name")
diff --git a/build_test.go b/build_test.go
index a422009..f449e34 100644
--- a/build_test.go
+++ b/build_test.go
@@ -379,3 +379,11 @@ func TestWithHeadless(t *testing.T) {
 		t.Error(err)
 	}
 }
+
+func TestAppendNilRow(t *testing.T) {
+	var models []SheetModel
+	models = append(models, nil)
+	err := WriteExcelSaveAs("test16.xlsx", models)
+	assert.EqualError(t, err, "nil reference row append is not allowed")
+
+}