debugAssertIsValid method
override
In debug mode, throws an exception if the object is not in a valid configuration. Otherwise, returns true.
This is intended to be used as follows:
assert(myDecoration.debugAssertIsValid());
Implementation
@override
bool debugAssertIsValid() {
assert(
_position.isFinite
&& _opacity >= 0.0
&& _opacity <= 1.0,
);
return true;
}