[PATCH] D83296: [clang-format] Add a MacroExpander.

[Manuel Klimek via Phabricator via cfe-commits]

klimek created this revision.
klimek added a reviewer: sammccall.
Herald added subscribers: cfe-commits, mgorny.
Herald added a project: clang.

The MacroExpander allows to expand simple (non-resursive) macro
definitions from a macro identifier token and macro arguments. It
annotates the tokens with a newly introduced MacroContext that keeps
track of the role a token played in expanding the macro in order to
be able to reconstruct the macro expansion from an expanded (formatted)
token stream.

Made Token explicitly copy-able to enable copying tokens from the parsed
macro definition.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D83296

Files:
  clang/lib/Format/CMakeLists.txt
  clang/lib/Format/FormatToken.h
  clang/lib/Format/MacroExpander.cpp
  clang/lib/Format/MacroExpander.h
  clang/unittests/Format/CMakeLists.txt
  clang/unittests/Format/MacroExpanderTest.cpp
  clang/unittests/Format/TestLexer.h

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