#150 Refactoring. Implemented pluggable providers for type hinting.

[emacsway]

No description provided.

[mcepl]

By swift browsing through the patch, I have only one question: I see just one test. Could we get some more tests to cover for this whole world? Or is the test coverage carried over from the previous commits?

[mcepl]

@aligrudi ??? What do you think?

[emacsway]

@mcepl , we test behavior, not implementation. Behavior currently is unchanged. Under refactoring (not re-engineering) we don't have to change the tests.

[emacsway]

@mcepl , In future, there will be added providers for PEP-0484 annotations of python3. Also It will be possible to add custom providers by users (using config or DIP), for example, for Django models, etc.

Each new behavior will be tested.

[emacsway]

Or is the test coverage carried over from the previous commits?

@mcepl , yes, all behavior covered by old tests , I just renamed the module, because for now type-hinting can use not only docstrings.

New behavior will be added under #146

[soupytwist]

As @emacsway says, this behavior is already covered by tests, only the implementation has been moved around. Seeing as nothing new is introduced except making it configurable, I don't see any risk in accepting this. Thanks!

[emacsway]

We can inline IAttrProvider into IAssignmentProvider.
See https://github.com/emacsway/rope/blob/51ac587ad70e913946190b359813534a4b4a4664/rope/base/oi/soi.py#L79
and https://github.com/emacsway/rope/blob/51ac587ad70e913946190b359813534a4b4a4664/rope/base/oi/soi.py#L84

Let me fix it.