This reverts commit 03c7184cca.
Reason for revert: Flutter doesn't build with after this CL because the following (kind of) program
abstract class RenderObject {
String toString({int minLevel}) => "foo";
}
abstract class ContainerRenderObjectMixin extends RenderObject {}
abstract class RenderBoxContainerDefaultsMixin implements
ContainerRenderObjectMixin {}
is wrongfully rejected. In patching this, I stumbled upon what seems to be bug in Fasta where some concrete classes arising from mixed in applications are marked as abstract, which causes the patch to produce false-positives. This needs some more investigation.
Original change's description:
> Enables arity check for overridden methods inherited from a mixin.
>
> The return type and parameter types checks are still disabled for
> mixins as there is an issue with type parameters being uninstantiated
> in mixin applications which causes the two checks to produce
> false-positives. As a result the SDK fails to compile with the two
> checks enabled because the libraries (such as collections) makes
> extensive use of mixin application with generic types. I've opened a
> separate ticket to track this issue [c.f. https://github.com/dart-lang/sdk/issues/34285].
>
> Furthermore this CL abstracts the arity check, return type check, and
> method parameter type check in checkMethodOverride to make it easier
> to understand the logic of the method.
>
> Closes https://github.com/dart-lang/sdk/issues/34235 and closes https://github.com/dart-lang/sdk/issues/32014
>
> Change-Id: Iae224926c2e99e6e89ccc3c19ec4bc7919ee48a5
> Reviewed-on: https://dart-review.googlesource.com/71781
> Commit-Queue: Daniel Hillerström <hillerstrom@google.com>
> Reviewed-by: Aske Simon Christensen <askesc@google.com>
TBR=askesc@google.com,hillerstrom@google.com
Change-Id: Idee6f53c2d6a17ea8a4103872b1183c01e4d30ce
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/72108
Reviewed-by: Daniel Hillerström <hillerstrom@google.com>
Commit-Queue: Daniel Hillerström <hillerstrom@google.com>
The return type and parameter types checks are still disabled for
mixins as there is an issue with type parameters being uninstantiated
in mixin applications which causes the two checks to produce
false-positives. As a result the SDK fails to compile with the two
checks enabled because the libraries (such as collections) makes
extensive use of mixin application with generic types. I've opened a
separate ticket to track this issue [c.f. https://github.com/dart-lang/sdk/issues/34285].
Furthermore this CL abstracts the arity check, return type check, and
method parameter type check in checkMethodOverride to make it easier
to understand the logic of the method.
Closes https://github.com/dart-lang/sdk/issues/34235 and closes https://github.com/dart-lang/sdk/issues/32014
Change-Id: Iae224926c2e99e6e89ccc3c19ec4bc7919ee48a5
Reviewed-on: https://dart-review.googlesource.com/71781
Commit-Queue: Daniel Hillerström <hillerstrom@google.com>
Reviewed-by: Aske Simon Christensen <askesc@google.com>
Daniel Hillerström