Potentially spurious static type computation in the Analyzer #56963
Description
Consider the following code:
extension on int? {
int? operator+(int? other) {
if (this != null && other != null) {
return this! + other;
} else {
return null;
}
}
}
int test(int? x) {
return ++x ?? 10;
}The expected static type of ++x is int?, given the return type of operator+. However, the Analyzer reports the following warning:
warning - qwerty.dart:12:17 - The left operand can't be null, so the right operand is never executed. Try removing the operator and the right operand. - dead_null_aware_expression