kovidgoyal/kitty
1
1
Fork 0
mirror of https://github.com/kovidgoyal/kitty.git synced 2024-11-15 07:04:31 +03:00
Code Issues Projects Releases Wiki Activity

Make a couple of other Set API functions nil-safe

Browse Source
This commit is contained in:
Kovid Goyal 2023-09-12 15:37:24 +05:30
parent 2d7bbf60cc
commit 93618842ae
No known key found for this signature in database
GPG Key ID: 06BC317B515ACE7C
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
tools/utils/set.go
View File

@ -84,7 +84,7 @@ func (self *Set[T]) Intersect(other *Set[T]) (ans *Set[T]) {
func (self *Set[T]) Subtract(other *Set[T]) (ans *Set[T]) { func (self *Set[T]) Subtract(other *Set[T]) (ans *Set[T]) {
ans = NewSet[T](self.Len()) ans = NewSet[T](self.Len())
for x := range self.items { for x := range self.items {
if !other.Has(x) { if other == nil || !other.Has(x) {
ans.items[x] = struct{}{} ans.items[x] = struct{}{}
} }
} }
@ -92,6 +92,9 @@ func (self *Set[T]) Subtract(other *Set[T]) (ans *Set[T]) {
} }
func (self *Set[T]) IsSubsetOf(other *Set[T]) bool { func (self *Set[T]) IsSubsetOf(other *Set[T]) bool {
if other == nil {
return self.Len() == 0
}
for x := range self.items { for x := range self.items {
if !other.Has(x) { if !other.Has(x) {
return false return false