Export clang-format16 via ydblib project

6e6be3a95868fde888d801b7590af4044049563f

1 files changed, 59 insertions, 0 deletions

diff --git a/contrib/libs/clang16/tools/extra/clang-tidy/abseil/AbseilMatcher.h b/contrib/libs/clang16/tools/extra/clang-tidy/abseil/AbseilMatcher.h
new file mode 100644
index 0000000000..f15026ea50
--- /dev/null
+++ b/contrib/libs/clang16/tools/extra/clang-tidy/abseil/AbseilMatcher.h
@@ -0,0 +1,59 @@
+//===- AbseilMatcher.h - clang-tidy ---------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/AST/ASTContext.h"
+#include "clang/ASTMatchers/ASTMatchFinder.h"
+#include <algorithm>
+
+namespace clang::ast_matchers {
+
+/// Matches AST nodes that were found within Abseil files.
+///
+/// Example matches Y but not X
+///     (matcher = cxxRecordDecl(isInAbseilFile())
+/// \code
+///   #include "absl/strings/internal-file.h"
+///   class X {};
+/// \endcode
+/// absl/strings/internal-file.h:
+/// \code
+///   class Y {};
+/// \endcode
+///
+/// Usable as: Matcher<Decl>, Matcher<Stmt>, Matcher<TypeLoc>,
+/// Matcher<NestedNameSpecifierLoc>
+AST_POLYMORPHIC_MATCHER(
+    isInAbseilFile, AST_POLYMORPHIC_SUPPORTED_TYPES(Decl, Stmt, TypeLoc,
+                                                    NestedNameSpecifierLoc)) {
+  auto &SourceManager = Finder->getASTContext().getSourceManager();
+  SourceLocation Loc = SourceManager.getSpellingLoc(Node.getBeginLoc());
+  if (Loc.isInvalid())
+    return false;
+  const FileEntry *FileEntry =
+      SourceManager.getFileEntryForID(SourceManager.getFileID(Loc));
+  if (!FileEntry)
+    return false;
+  // Determine whether filepath contains "absl/[absl-library]" substring, where
+  // [absl-library] is AbseilLibraries list entry.
+  StringRef Path = FileEntry->getName();
+  static constexpr llvm::StringLiteral AbslPrefix("absl/");
+  size_t PrefixPosition = Path.find(AbslPrefix);
+  if (PrefixPosition == StringRef::npos)
+    return false;
+  Path = Path.drop_front(PrefixPosition + AbslPrefix.size());
+  static const char *AbseilLibraries[] = {
+      "algorithm", "base",     "container", "debugging", "flags",
+      "hash",      "iterator", "memory",    "meta",      "numeric",
+      "profiling", "random",   "status",    "strings",   "synchronization",
+      "time",      "types",    "utility"};
+  return llvm::any_of(AbseilLibraries, [&](const char *Library) {
+    return Path.startswith(Library);
+  });
+}
+
+} // namespace clang::ast_matchers