KeySet<T extends KeyboardKey>.fromSet constructor
Null safety
- Set<
T> keys
Create a KeySet from a set of KeyboardKeys.
Do not mutate the keys
set after passing it to this object.
The keys
set must not be empty.
Implementation
KeySet.fromSet(Set<T> keys)
: assert(keys != null),
assert(keys.isNotEmpty),
assert(!keys.contains(null)),
_keys = HashSet<T>.of(keys);