Simplify CppCompileAction#discoverInputs().

In the process, make it so that running an extra action attached to a
CppCompileAction does not change the state of the CppCompileAction (yes, this
happened: if include scanning was not done, topLevelModules would be changed)

There are two changes in behavior this will: introduce

1. topLevelModules will no longer be set if include scanning is not in effect, but that's okay: it's never read except when shouldPruneModules is true, and if that is true, #discoverInputsStage2() will set it.
2. Extra actions attached to CppCompileAction will not get .pcm files on their inputs that were not used by the compiler

RELNOTES: None.
PiperOrigin-RevId: 199285276
3 files changed
tree: 0ecfc2ae1793dae4963019373dfeeddca2715842
  1. .bazelci/
  2. examples/
  3. scripts/
  4. site/
  5. src/
  6. third_party/
  7. tools/
  8. .gitattributes
  9. .gitignore
  10. AUTHORS
  11. BUILD
  12. CHANGELOG.md
  13. combine_distfiles.py
  14. combine_distfiles_to_tar.sh
  15. compile.sh
  16. CONTRIBUTING.md
  17. CONTRIBUTORS
  18. distdir.bzl
  19. ISSUE_TEMPLATE.md
  20. LICENSE
  21. README.md
  22. WORKSPACE
README.md

Bazel

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