code simplification from jmoiron#534 with slight tweak

jmoiron · jmoiron · commit 45f24e949eb6 · 2021-01-24T14:24:04.000-05:00
diff --git a/sqlx.go b/sqlx.go
@@ -64,11 +64,7 @@ func isScannable(t reflect.Type) bool {
 
 	// it's not important that we use the right mapper for this particular object,
 	// we're only concerned on how many exported fields this struct has
-	m := mapper()
-	if len(m.TypeMap(t).Index) == 0 {
-		return true
-	}
-	return false
+	return len(mapper().TypeMap(t).Index) == 0
 }
 
 // ColScanner is an interface used by MapScan and SliceScan
