esign.go: added nil check of UploadFile.Close()

jfcote87 · jfcote87 · commit 88e95544c366 · 2019-06-23T09:16:50.000-04:00
diff --git a/esign.go b/esign.go
@@ -288,8 +288,10 @@ type UploadFile struct {
 
 // Close closes the io.Reader if an io.Closer.
 func (uf *UploadFile) Close() {
-	if closer, ok := uf.Reader.(io.Closer); ok {
-		closer.Close()
+	if uf != nil {
+		if closer, ok := uf.Reader.(io.Closer); ok {
+			closer.Close()
+		}	
 	}
 }
 

Original file line number	Diff line number	Diff line change
`@@ -288,8 +288,10 @@ type UploadFile struct {`
`288`	`288`
`289`	`289`	`// Close closes the io.Reader if an io.Closer.`
`290`	`290`	`func (uf *UploadFile) Close() {`
`291`		`- if closer, ok := uf.Reader.(io.Closer); ok {`
`292`		`- closer.Close()`
	`291`	`+ if uf != nil {`
	`292`	`+ if closer, ok := uf.Reader.(io.Closer); ok {`
	`293`	`+ closer.Close()`
	`294`	`+ }`
`293`	`295`	`}`
`294`	`296`	`}`
`295`	`297`