llvm/clang-tools-extra/clang-tidy/performance/EnumSizeCheck.cpp

//===--- EnumSizeCheck.cpp - 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 "EnumSizeCheck.h"
#include "../utils/Matchers.h"
#include "../utils/OptionsUtils.h"
#include "clang/AST/ASTContext.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
#include <algorithm>
#include <cinttypes>
#include <cstdint>
#include <limits>
#include <utility>

usingnamespaceclang::ast_matchers;

namespace clang::tidy::performance {

namespace {

AST_MATCHER(EnumDecl, hasEnumerators) { … }

const std::uint64_t Min8 = …;
const std::uint64_t Max8 = …;
const std::uint64_t Min16 = …;
const std::uint64_t Max16 = …;
const std::uint64_t Min32 = …;
const std::uint64_t Max32 = …;

std::pair<const char *, std::uint32_t>
getNewType(std::size_t Size, std::uint64_t Min, std::uint64_t Max) noexcept { … }

} // namespace

EnumSizeCheck::EnumSizeCheck(StringRef Name, ClangTidyContext *Context)
    : … { … }

void EnumSizeCheck::storeOptions(ClangTidyOptions::OptionMap &Opts) { … }

bool EnumSizeCheck::isLanguageVersionSupported(
    const LangOptions &LangOpts) const { … }

void EnumSizeCheck::registerMatchers(MatchFinder *Finder) { … }

void EnumSizeCheck::check(const MatchFinder::MatchResult &Result) { … }

} // namespace clang::tidy::performance