Pets, Cattle and Automatic Clang Operations with C++ Code

on YouTube ↗49m

" summary

Shows how to use Clang tooling to automate real refactors and searches using clang-query matchers, clang-transform/ClangTidy fixes, and libclang python bindings to script one-off generators. Demonstrates matching a buggy conditional_variable wait pattern and replacing pointer args with references across a codebase, and converting hundreds of span string literals into an enum to cut CPU and network cost. Requires compile_commands.json and yields diffs applied to files so the changes actually compile and run.

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" chapters (10)

1. 0:00Introduction
2. 3:17Codebase problems at scale
3. 10:27Regex limits for code tasks
4. 13:17How compilers parse code
5. 16:09Clang tooling: matches & transforms
6. 22:22Debugging matchers with Clang Query
7. 25:10Fixing code standards with Clang Transform
8. 36:18Generating code from patterns
9. 46:06Automate or manual tools?
10. 47:53Summary & Q&A

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