[cfe-dev] [RFC] Easier source-to-source transformations with clang tooling

[Yitzhak Mandelbaum via cfe-dev]

Hi all,

I have a proposal for a framework that makes it easier to write source to
source transformations with the clang::Tooling libraries, including
clang-tidy checks.

The full proposal is in this doc:

https://docs.google.com/document/d/1ppw0RhjwsrbBcHYhI85pe6ISDbA6r5d00ot3N8cQWeQ/edit?usp=sharing

>From the doc:
Transformer is a framework that aims to simplify development of clang-based
source-to-source transformations.  It focuses on the particular class of
transformations that act only locally — that is, use local information
about the code and make local changes  (like a syntax-aware
“find-and-replace”); and at scale — that is, will be carried out on many
source files.  The target audience is users that are comfortable with, or
willing to become comfortable with, the clang AST matchers library.

I have a working prototype of this library which I've used on small
examples inside Google.  I plan to put together a patch for reference
next week, although the doc should stand on its own.

Thanks!
Yitzhak Mandelbaum
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