diff options
| -rw-r--r-- | android/util.go | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/android/util.go b/android/util.go index 38e0a4dbb..fb09128f8 100644 --- a/android/util.go +++ b/android/util.go @@ -276,6 +276,8 @@ func RemoveFromList(s string, list []string) (bool, []string) { // FirstUniqueStrings returns all unique elements of a slice of strings, keeping the first copy of // each. It modifies the slice contents in place, and returns a subslice of the original slice. func FirstUniqueStrings(list []string) []string { + // Do not moodify the input in-place, operate on a copy instead. + list = CopyOf(list) // 128 was chosen based on BenchmarkFirstUniqueStrings results. if len(list) > 128 { return firstUniqueStringsMap(list) @@ -332,6 +334,7 @@ func LastUniqueStrings(list []string) []string { // SortedUniqueStrings returns what the name says func SortedUniqueStrings(list []string) []string { + // FirstUniqueStrings creates a copy of `list`, so the input remains untouched. unique := FirstUniqueStrings(list) sort.Strings(unique) return unique |