Summary:
In a future patch we will want to pass the uniondatapackstore around to other
objects who will contribute to the lifetime. Let's change it to a shared_ptr so
that becomes easy.
Let's also make the destructor virtual, so we can pass different types of stores
around and have them be destructed correctly.
Test Plan: Ran the tests
Reviewers: #mercurial, simonfar
Reviewed By: simonfar
Subscribers: mjpieters
Differential Revision: https://phabricator.intern.facebook.com/D4603893
Signature: t1:4603893:1487847173:2fc3505032ea8c30cf9e0f76ac4e75d64513d87d
Summary:
To begin the process of weaning treemanifest off of Python and on to the new
cstore, let's introduce a base Store class that implements a simple get()
function. UnionDatapackStore already implements this. Future patches will make a
Python version that implements this interface as well, so we can swap between
them easily.
Test Plan: Built and ran the tests.
Reviewers: #mercurial, simonfar
Reviewed By: simonfar
Subscribers: simonfar, mjpieters
Differential Revision: https://phabricator.intern.facebook.com/D4569870
Signature: t1:4569870:1487846232:aa816311ec37a520a2405b68e3c02ad744613049
