Spurious 'constant constructor can't call a non-constant superconstructor' error

[eernstg]

Cf. #32223 (comment), the front end seems to get confused about constructors during mixin application if there is a static variable declaration in a mixin:

class A {
  const A();
}

mixin B {
  static const int value=1; // This causes the error, with and without `const`.
  void printStuff() => print('Hello from B!');
}

class C extends A with B {
  const C();
}

The response with a fresh front end (commit 5ae4448) is as follows:

n002.dart:14:9: Error: A constant constructor can't call a non-constant super constructor.
  const C();
        ^

[scheglov]

BTW, @srawlins fixed this in analyzer in 9f6c372.

[srawlins]

Ah ha, so I did!

[scheglov]

Hm... This issue is for CFE, but it references another issue that says that analyzer reports an error. So, I just provided some context. But I think we should leave this CFE issue open.

[srawlins]

Oops; thanks

[artob]

Running into this with my Flutter plugin, on the beta channel. Is this fixed on any Flutter release channel as yet?

[Miiite]

I just encountered this, on the stable channel (v1.22.2)

[marcglasberg]

I am also having this problem.