tree 38ef68c7b9b4136fd3ec0af63fc5a0926c96752f
parent 5dba5aa98b3022a45220b86fdd550aedb48d509d
author srawlins <srawlins@google.com> 1593032953 -0400
committer Sam Rawlins <sam.rawlins@gmail.com> 1594309593 -0700

MockBuilder: Throw when a mocked method has a private return or parameter type.

This takes on a few forms:

* If a method has a private InterfaceType return type, like `_Bar`,
  throw.
* If a method has a private InterfaceType parameter type, like `_Bar`,
  throw. This is not strictly necessary; we could expand the parameter
  type to `Object?` or something, but that would be very strange. For
  now, this is unsupported.
* If a method has a FunctionType return type or parameter type which
  itself has a private return type, like `_Bar Function()`, or private
  parameter type, like `void Function(_Bar)`, throw.

This includes fixes for two other forms:

* If a method has a non-nullable TypeParameterType return type, like
  `T`, throw.
* If a method has a non-nullable FunctionType return type which itself
  has a non-nullable return type, like `T Function()`, throw.

In all of the above cases, only consider methods which are part of the public interface: only public instance methods.

PiperOrigin-RevId: 318137699