Setters can't use 'async', 'async*', or 'sync*'DRT-W1428
The analyzer produces this diagnostic when the body of a setter is prefixed
by one of the following modifiers: async
, async*
, or sync*
. Setter
bodies must be synchronous.
Example
The following code produces this diagnostic because the body of the setter
x
is marked as being async
:
class C {
set x(int i) async {}
}
Common fixes
If the setter can be synchronous, then remove the modifier:
class C {
set x(int i) {}
}
If the setter can't be synchronous, then use a method to set the value instead:
class C {
void x(int i) async {}
}