Adds support for traversing into a field that is of type:
map[...]*struct{...}
This is needed to allow java_sdk_library to mark scope specific
properties, e.g. public.annotations as being target build release
specific.
It was necessary to change the Scope field from:
Scope map[*apiScope]scopeProperties
to:
Scope map[*apiScope]*scopeProperties
That is because there is no way in go to change the field of a struct
value of a map. i.e. you cannot do the following, not even using
reflection:
Scope[apiScopePublic].AnnotationsZip = nil
Bug: 204763318
Test: m nothing
Change-Id: Id103f70f55d4202971321ef4925cbec4b55f8136
Minor restructuring of the build_release pruning code to make it easier
to add logic for handling fields of maps of structs. That includes:
1. Moving some code that is specific to clearing a selected field
inside the associated if block.
2. Replacing an if with a switch.
3. Improving the error handling by separating the reporting of the
container that broke from information about which field could not be
set. That allows follow up code to provide information about the map
key instead.
The tests were restructed by:
1. Switching from using AssertDeepEquals to compare the structs to
comparing the output of marshalling the structs to JSON. That was
for a couple of reasons. Firstly, because JSON will marshal (and so
allow comparison of) the contents of pointers to structs whereas
AssertDeepEquals will just compare the pointers themselves.
Secondly, because JSON can pretty print the output and make it
easier to read.
2. Using a func to create a new instance of the input structure for
each test. That is to allow the test to modify the input structure,
e.g. by clearing a field in a struct that is pointed to by a map.
The test previously relied on the input structure being immutable
and passed by value but a follow up change will change that by
adding a map field that contains pointers to structs.
Bug: 204763318
Test: m nothing
Change-Id: I84dc99621497b7263e30466895b823eb02cb2b56
Adds a general mechanism for pruning selected sdk member properties
(i.e. setting their fields to their zero value) and uses that to prune
any properties that do not support a specified target build release.
Follow up changes will use that to allow building an sdk snapshot that
is compatible with previous release S.
Bug: 197842263
Test: m nothing
Change-Id: Ib949a9cfe85fff30f86228eeb15d3a45c073b037
Adds the following:
1. A buildRelease type to represent a single build release.
2. A buildReleaseSet type to represent a set of build releases.
3. Methods to create parse and use the previous new types.
4. Tests for the above.
Bug: 197842263
Test: m nothing
Change-Id: Ib0dd4fc32851a4fffde3fa02ea22c8369f8c2995
