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//===--- MultiwayPathsCoveredCheck.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_HICPP_MULTIWAY_PATHS_COVERED_H
#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_HICPP_MULTIWAY_PATHS_COVERED_H
#include "../ClangTidy.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
#include <iostream>
namespace clang {
namespace tidy {
namespace hicpp {
/// Find occasions where not all codepaths are explicitly covered in code.
/// This includes 'switch' without a 'default'-branch and 'if'-'else if'-chains
/// without a final 'else'-branch.
///
/// For the user-facing documentation see:
/// http://clang.llvm.org/extra/clang-tidy/checks/hicpp-multiway-paths-covered.html
class MultiwayPathsCoveredCheck : public ClangTidyCheck {
public:
MultiwayPathsCoveredCheck(StringRef Name, ClangTidyContext *Context)
: ClangTidyCheck(Name, Context),
WarnOnMissingElse(Options.get("WarnOnMissingElse", 0)) {}
void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
void registerMatchers(ast_matchers::MatchFinder *Finder) override;
void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
private:
void handleSwitchWithDefault(const SwitchStmt *Switch, std::size_t CaseCount);
void handleSwitchWithoutDefault(
const SwitchStmt *Switch, std::size_t CaseCount,
const ast_matchers::MatchFinder::MatchResult &Result);
/// This option can be configured to warn on missing 'else' branches in an
/// 'if-else if' chain. The default is false because this option might be
/// noisy on some code bases.
const bool WarnOnMissingElse;
};
} // namespace hicpp
} // namespace tidy
} // namespace clang
#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_HICPP_MULTIWAY_PATHS_COVERED_H
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