chore: set slice.Filter result slice cap to len

Dmitriy Matrenichev · Dmitriy Matrenichev · commit 214c1efe795c · 2022-12-29T16:38:19.000+03:00
This change ensures that if we `append` to resulting slice in different places, we will not use the same underlying memory.

Signed-off-by: Dmitriy Matrenichev &lt;dmitry.matrenichev@siderolabs.com&gt;
diff --git a/slices/slices.go b/slices/slices.go
@@ -62,7 +62,7 @@ func Filter[S ~[]T, T any](slc S, fn func(T) bool) S {
 		return nil
 	}
 
-	return r
+	return r[:len(r):len(r)]
 }
 
 // FilterInPlace filters the slice in place.

Original file line number	Diff line number	Diff line change
`@@ -62,7 +62,7 @@ func Filter[S ~[]T, T any](slc S, fn func(T) bool) S {`
`62`	`62`	`return nil`
`63`	`63`	`}`
`64`	`64`
`65`		`- return r`
	`65`	`+ return r[:len(r):len(r)]`
`66`	`66`	`}`
`67`	`67`
`68`	`68`	`// FilterInPlace filters the slice in place.`