[all-commits] [llvm/llvm-project] dd47b8: [clang-format] Handle Trailing Whitespace After Li...

[Naveen Seth Hanig via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: dd47b845a62cdaf4a1b0aba354cd80a4eabd9570
      https://github.com/llvm/llvm-project/commit/dd47b845a62cdaf4a1b0aba354cd80a4eabd9570
  Author: Naveen Seth Hanig <naveen.hanig at outlook.com>
  Date:   2025-06-25 (Wed, 25 Jun 2025)

  Changed paths:
    M clang/lib/Format/FormatTokenLexer.cpp
    M clang/unittests/Format/FormatTest.cpp

  Log Message:
  -----------
  [clang-format] Handle Trailing Whitespace After Line Continuation (P2223R2) (#145243)

Fixes #145226.

Implement
[P2223R2](https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2021/p2223r2.pdf)
in clang-format to correctly handle cases where a backslash '\\' is
followed by trailing whitespace before the newline.
Previously, `clang-format` failed to properly detect and handle such
cases, leading to misformatted code.

With this, `clang-format` matches the behavior already implemented in
Clang's lexer and `DependencyDirectivesScanner.cpp`, which allow
trailing whitespace after a line continuation in any C++ standard.



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