1 files changed, 71 insertions, 0 deletions
diff --git a/clang-tidy/ClangTidyCheck.cpp b/clang-tidy/ClangTidyCheck.cpp
new file mode 100644
index 00000000..fbf11768
--- /dev/null
+++ b/clang-tidy/ClangTidyCheck.cpp
@@ -0,0 +1,71 @@
+//===--- ClangTidyCheck.cpp - clang-tidy ------------------------*- C++ -*-===//
+//
+// 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 "ClangTidyCheck.h"
+
+namespace clang {
+namespace tidy {
+
+ClangTidyCheck::ClangTidyCheck(StringRef CheckName, ClangTidyContext *Context)
+    : CheckName(CheckName), Context(Context),
+      Options(CheckName, Context->getOptions().CheckOptions) {
+  assert(Context != nullptr);
+  assert(!CheckName.empty());
+}
+
+DiagnosticBuilder ClangTidyCheck::diag(SourceLocation Loc, StringRef Message,
+                                       DiagnosticIDs::Level Level) {
+  return Context->diag(CheckName, Loc, Message, Level);
+}
+
+void ClangTidyCheck::run(const ast_matchers::MatchFinder::MatchResult &Result) {
+  // For historical reasons, checks don't implement the MatchFinder run()
+  // callback directly. We keep the run()/check() distinction to avoid interface
+  // churn, and to allow us to add cross-cutting logic in the future.
+  check(Result);
+}
+
+ClangTidyCheck::OptionsView::OptionsView(StringRef CheckName,
+                         const ClangTidyOptions::OptionMap &CheckOptions)
+    : NamePrefix(CheckName.str() + "."), CheckOptions(CheckOptions) {}
+
+std::string ClangTidyCheck::OptionsView::get(StringRef LocalName,
+                                             StringRef Default) const {
+  const auto &Iter = CheckOptions.find(NamePrefix + LocalName.str());
+  if (Iter != CheckOptions.end())
+    return Iter->second;
+  return Default;
+}
+
+std::string
+ClangTidyCheck::OptionsView::getLocalOrGlobal(StringRef LocalName,
+                                              StringRef Default) const {
+  auto Iter = CheckOptions.find(NamePrefix + LocalName.str());
+  if (Iter != CheckOptions.end())
+    return Iter->second;
+  // Fallback to global setting, if present.
+  Iter = CheckOptions.find(LocalName.str());
+  if (Iter != CheckOptions.end())
+    return Iter->second;
+  return Default;
+}
+
+void ClangTidyCheck::OptionsView::store(ClangTidyOptions::OptionMap &Options,
+                                        StringRef LocalName,
+                                        StringRef Value) const {
+  Options[NamePrefix + LocalName.str()] = Value;
+}
+
+void ClangTidyCheck::OptionsView::store(ClangTidyOptions::OptionMap &Options,
+                                        StringRef LocalName,
+                                        int64_t Value) const {
+  store(Options, LocalName, llvm::itostr(Value));
+}
+
+} // namespace tidy
+} // namespace clang