llvm-project/clang-tools-extra/clang-tidy/readability/BracesAroundStatementsCheck.h

//===--- BracesAroundStatementsCheck.h - clang-tidy -------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_BRACESAROUNDSTATEMENTSCHECK_H
#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_BRACESAROUNDSTATEMENTSCHECK_H

#include "../ClangTidy.h"

namespace clang {
namespace tidy {
namespace readability {

/// \brief Checks that bodies of 'if' statements and loops ('for', 'range-for',
/// 'do-while', and 'while') are inside braces
///
/// Before:
/// if (condition)
///   statement;
///
/// After:
/// if (condition) {
///   statement;
/// }
///
/// Additionally, one can define an option `ShortStatementLines` defining the
/// minimal number of lines that the statement should have in order to trigger
/// this check.
/// The number of lines is counted from the end of condition or initial keyword
/// (do/else) until the last line of the inner statement.
/// Default value 0 means that braces will be added to all statements (not
/// having them already).
class BracesAroundStatementsCheck : public ClangTidyCheck {
public:
  BracesAroundStatementsCheck(StringRef Name, ClangTidyContext *Context);
  void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
  void registerMatchers(ast_matchers::MatchFinder *Finder) override;
  void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
  void onEndOfTranslationUnit() override;

private:
  bool checkStmt(const ast_matchers::MatchFinder::MatchResult &Result,
                 const Stmt *S, SourceLocation StartLoc,
                 SourceLocation EndLocHint = SourceLocation());
  template <typename IfOrWhileStmt>
  SourceLocation findRParenLoc(const IfOrWhileStmt *S, const SourceManager &SM,
                               const ASTContext *Context);

private:
  std::set<const Stmt*> ForceBracesStmts;
  const unsigned ShortStatementLines;
};

} // namespace readability
} // namespace tidy
} // namespace clang

#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_BRACESAROUNDSTATEMENTSCHECK_H