[PATCH] D64573: [Syntax] Allow to mutate syntax trees

[Ilya Biryukov via Phabricator via cfe-commits]

ilya-biryukov created this revision.
ilya-biryukov added a reviewer: sammccall.
Herald added a subscriber: mgorny.
Herald added a project: clang.
ilya-biryukov added a parent revision: D63835: [Syntax] Add nodes for most common statements.

This patch adds facilities to mutate the syntax trees and produce
corresponding text replacements.

The public interface of the syntax library now includes facilities to:

1. perform type-safe modifications of syntax trees,
2. compute textual replacements to apply the modifications,
3. create syntax trees not backed by the source code.

For each of the three, we only add a few example transformations in this
patch to illustrate the idea, support for more kinds of nodes and
transformations will be done in follow-up patches.

The high-level mutation operations are implemented on top of operations
that allow to arbitrarily change the trees. They are considered to be
implementation details and are not available to the users of the
library.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D64573

Files:
  clang/include/clang/Tooling/Syntax/BuildTree.h
  clang/include/clang/Tooling/Syntax/Mutations.h
  clang/include/clang/Tooling/Syntax/Tokens.h
  clang/include/clang/Tooling/Syntax/Tree.h
  clang/lib/Tooling/Syntax/BuildTree.cpp
  clang/lib/Tooling/Syntax/CMakeLists.txt
  clang/lib/Tooling/Syntax/ComputeReplacements.cpp
  clang/lib/Tooling/Syntax/Mutations.cpp
  clang/lib/Tooling/Syntax/Tokens.cpp
  clang/lib/Tooling/Syntax/Tree.cpp
  clang/unittests/Tooling/Syntax/CMakeLists.txt
  clang/unittests/Tooling/Syntax/TreeTest.cpp

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