As per Language specs (10.1.1 Operators) I am trying to override some operators.
I get an analyzer error when overriding the 'minus' and 'unary minus' operators - one that I don't get:
'The operator "-" is not defined on class Indentation'
but in the class I have defined it:
Indentation operator -() {
level--;
return this;
}
and I use it like myInstance--;
and it actually does work, but still the analyzer complains and I cannot submit the code 'clean' because of the error.
I have looked up an old thread ( Why does overriding negate cause static warning in Dart ) but I think it is not relevant here.
Any advise is welcome.
--x
is the same as x -= 1
. To use it you have to define the operator -(p)
(not operator -()
)
Indentation operator -(n) => new Indentation(level - n);
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.