[CIR] Implement handling for lambda capture of destructured types (#191316)

Lambda captures of variables that require destruction requires us to
created cleanup scopes with deferred deactivation. That is, the cleanup
scope is created, but added to a list that automatically deactivates the
cleanup when we exit the scope in the compiler code where the lambda is
being generated. This deferred deactivation mechanism will be needed for
other use cases as well, so it is implemented in a general way, which
closely follows the classic codegen handling.

Assisted-by: Cursor / claude-4.6-opus-high
GitOrigin-RevId: 23674b9cf3e45194f3f0b7ca0ada8a558f1d9c6d
6 files changed
tree: 98ec2b30e348a341df361eac8e5d47787433b1cf
  1. bindings/
  2. cmake/
  3. docs/
  4. examples/
  5. include/
  6. lib/
  7. runtime/
  8. test/
  9. tools/
  10. unittests/
  11. utils/
  12. www/
  13. .clang-format
  14. .clang-format-ignore
  15. .clang-tidy
  16. .gitignore
  17. AreaTeamMembers.txt
  18. CMakeLists.txt
  19. INSTALL.txt
  20. LICENSE.TXT
  21. Maintainers.md
  22. NOTES.txt
  23. README.md
README.md

C language Family Front-end

Welcome to Clang.

This is a compiler front-end for the C family of languages (C, C++ and Objective-C) which is built as part of the LLVM compiler infrastructure project.

Unlike many other compiler frontends, Clang is useful for a number of things beyond just compiling code: we intend for Clang to be host to a number of different source-level tools. One example of this is the Clang Static Analyzer.

If you're interested in more (including how to build Clang) it is best to read the relevant websites. Here are some pointers: