Exp/serializable projectevaluation

[jackcartman]

Fixes #6260

Context

The evaluation result is being cached now on the CPS side to speed up solution load. For the cases where CPS has it's linked read-only Project, we would like to create a ProjectInstance as well from it, instead of triggering a evaluation for the sake of creating a ProjectInstance

Changes Made

• Add a constructor to ProjectInstance that builds itself from the Project.
• Also exposed the existing GetAllGlobs override to ProjectLink. Previously never exposed since ProjectLink was used only for csproj that does not really care about globs.

Testing

Added a test for the new constructor.

Notes

[ladipro]

Looks good! I've left a nit and a question inline.

[cdmihai]

How is this different from the other ProjectInstance(Evaluation.Project.Data) constructor which is called from Project.CreateProjectInstance? They seem the same to me, so I'd rather not add this additional constructor (unless I'm missing something).

[arkalyanms]

The intent of this new public constructor is that it /// Creates a ProjectInstance from an external created <see cref="Project"/>.

Data and the Data based constructor are both internal. Going that route would mean exposing the internal implementation detail that is Data and making it a linkable object that the client has to construct their external Project around and pass that in for this purpose.

[cdmihai]

Ah, okay, let me rephrase it to ensure that I got it right: your scenario is to create a ProjectInstance object residing in Process_1 based on a Project object residing in Process_2. You want to avoid marshaling the Project.Data object from Process_2 to Process_1 and instead have the ProjectInstance constructor from Process_1 do remote calls for each Project data field (one "rpc" call for properties, one for items, one for targets, etc).

Yea, in this case reading the data directly from the remote Project object is more straighforward than manually coding up a stub/proxy for Project.Data as well. Assuming the two processes always reside on the same machine, otherwise the rpc overhead might make it worth it to serialize the entire Project.Data over one rpc call.

However, I'd just delete the old ProjectInstance(Evaluation.Project.Data) constructor. It's just code duplication with your new constructor.

[arkalyanms]

Yes, that's a good summary. The old ProjectInstance(Evaluation.Project.Data) constructor still will get used as-is in the non cached mode in VS where MSBuild gets called for actual evaluation. I would like to keep it that way for feature isolation reasons, atleast until the cache mode feature which will initially go in behind a feature flag gets more test coverage.