Resolve #387, skip saving empty calculation chains

xuri · xuri · commit 095b5fb62a4b · 2019-04-22T16:59:41.000+08:00
diff --git a/calcchain.go b/calcchain.go
@@ -25,7 +25,7 @@ func (f *File) calcChainReader() *xlsxCalcChain {
 // calcChainWriter provides a function to save xl/calcChain.xml after
 // serialize structure.
 func (f *File) calcChainWriter() {
-	if f.CalcChain != nil {
+	if f.CalcChain != nil && f.CalcChain.C != nil {
 		output, _ := xml.Marshal(f.CalcChain)
 		f.saveFileList("xl/calcChain.xml", output)
 	}

Original file line number	Diff line number	Diff line change
`@@ -25,7 +25,7 @@ func (f File) calcChainReader() xlsxCalcChain {`
`25`	`25`	`// calcChainWriter provides a function to save xl/calcChain.xml after`
`26`	`26`	`// serialize structure.`
`27`	`27`	`func (f *File) calcChainWriter() {`
`28`		`- if f.CalcChain != nil {`
	`28`	`+ if f.CalcChain != nil && f.CalcChain.C != nil {`
`29`	`29`	`output, _ := xml.Marshal(f.CalcChain)`
`30`	`30`	`f.saveFileList("xl/calcChain.xml", output)`
`31`	`31`	`}`