fix(gutil): panic when field is []byte(BINARY in mysql)

[laushunyu]

Preview

在数据表定义时，我使用了 binary(32) 作为其主键，并使用 gf 生成了对应的 do 与 entity, 其主键类型为 []byte 。在数据关联查询过程中使用了 ListItemValuesUnique 导致了 panic。

Debug 发现当去重的 map 指定的 key 为 []byte 时，go 会认为其 not comparable 直接 panic， 考虑到 []byte 与 string 强转的内存拷贝问题，这里使用了 unsafe 来转换 StringHeader 与 SliceHeader 并将结果的 string 作为 key 进行去重操作 这里将 []byte 强转为 comparable 的 string 来进行 set key 操作

Testcase

func Test_ListItemValuesUnique_Binary_ID(t *testing.T) {
	gtest.C(t, func(t *gtest.T) {
		listMap := g.List{
			g.Map{"id": []byte{1}, "score": 100},
			g.Map{"id": []byte{2}, "score": 100},
			g.Map{"id": []byte{3}, "score": 100},
			g.Map{"id": []byte{4}, "score": 100},
			g.Map{"id": []byte{4}, "score": 100},
		}
		t.Assert(gutil.ListItemValuesUnique(listMap, "id"), g.Slice{[]byte{1}, []byte{2}, []byte{3}, []byte{4}})
		t.Assert(gutil.ListItemValuesUnique(listMap, "score"), g.Slice{100})
	})
}

Before

=== RUN   Test_ListItemValuesUnique_Binary_ID
runtime error: hash of unhashable type []uint8
1.  github.com/gogf/gf/v2/util/gutil.ListItemValuesUnique
    /home/macoo/gf/util/gutil/gutil_list.go:126
2.  github.com/gogf/gf/v2/util/gutil_test.Test_ListItemValuesUnique_Binary_ID.func1
    /home/macoo/gf/util/gutil/gutil_z_unit_list_test.go:259
3.  github.com/gogf/gf/v2/util/gutil_test.Test_ListItemValuesUnique_Binary_ID
    /home/macoo/gf/util/gutil/gutil_z_unit_list_test.go:251
--- FAIL: Test_ListItemValuesUnique_Binary_ID (0.00s)

After

=== RUN   Test_ListItemValuesUnique_Binary_ID
--- PASS: Test_ListItemValuesUnique_Binary_ID (0.00s)
PASS

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Codecov Report

Patch coverage: 100.00% and project coverage change: -0.04% ⚠️

Comparison is base (ef1e18d) 79.10% compared to head (e4fcc6b) 79.07%.

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Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2957      +/-   ##
==========================================
- Coverage   79.10%   79.07%   -0.04%     
==========================================
  Files         643      643              
  Lines       52749    52754       +5     
==========================================
- Hits        41727    41715      -12     
- Misses       8942     8953      +11     
- Partials     2080     2086       +6     

Flag	Coverage Δ
go-1.18-386	?
go-1.18-amd64	79.16% <100.00%> (+0.01%)	⬆️
go-1.19-386	79.02% <100.00%> (-0.04%)	⬇️
go-1.19-amd64	?
go-1.20-386	?
go-1.20-amd64	?
go-1.21-386	79.11% <100.00%> (-0.05%)	⬇️
go-1.21-amd64	?

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
util/gutil/gutil_list.go	93.81% <100.00%> (+0.33%)	⬆️

... and 5 files with indirect coverage changes

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