NoRecursionCheck.h

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//===--- NoRecursionCheck.h - 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
//
//===----------------------------------------------------------------------===//
 
#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_NORECURSIONCHECK_H
#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_NORECURSIONCHECK_H
 
#include "../ClangTidyCheck.h"
 
namespace clang {
 
class CallGraphNode;
 
namespace tidy::misc {
 
/// Finds strongly connected functions (by analyzing call graph for SCC's
/// that are loops), diagnoses each function in the cycle,
/// and displays one example of possible call graph loop (recursion).
///
/// For the user-facing documentation see:
/// http://clang.llvm.org/extra/clang-tidy/checks/misc/no-recursion.html
class NoRecursionCheck : public ClangTidyCheck {
public:
  NoRecursionCheck(StringRef Name, ClangTidyContext *Context)
      : ClangTidyCheck(Name, Context) {}
  void registerMatchers(ast_matchers::MatchFinder *Finder) override;
  void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
 
private:
  void handleSCC(ArrayRef<CallGraphNode *> SCC);
};
 
} // namespace tidy::misc
} // namespace clang
 
#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_NORECURSIONCHECK_H