[PATCH] D56933: [Tooling][RFC] Introduce Stencil library to simplify source code generation in refactorings.

[Yitzhak Mandelbaum via Phabricator via cfe-commits]

ymandel created this revision.
Herald added subscribers: cfe-commits, jfb.

REQUEST FOR COMMENT: this is not intended (yet) as a proper revision. It complements the design document for Transformer:
https://docs.google.com/document/d/1ppw0RhjwsrbBcHYhI85pe6ISDbA6r5d00ot3N8cQWeQ/edit?usp=sharing

This revision introduces the Stencil library, which is designed to complement the AST matchers in support of writing source-to-source transformations. A stencil is similar in spirit to a format string: it is composed of a series of raw text strings, references to node ids (bound in a corresponding matcher) and helper code-generation operations.  A stencil can be applied to a match result and uses that result to find all nodes referenced in the stencil and then produce a source string.

Stencil is part of the Transformer framework, but can also be used on its own, for example in a ClangTidy.  Please see the Transformer doc and the accompanying tests for example uses.


Repository:
  rC Clang

https://reviews.llvm.org/D56933

Files:
  clang/include/clang/Tooling/Refactoring/Stencil.h
  clang/lib/Tooling/Refactoring/Stencil.cpp
  clang/unittests/Tooling/StencilTest.cpp

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