d3f92e30bb
Identifies cases where `std::min` or `std::max` is used to find the minimum or maximum value among more than two items through repeated calls. The check replaces these calls with a single call to `std::min` or `std::max` that uses an initializer list. This makes the code slightly more efficient. Closes #25340
57 lines
1.9 KiB
C++
57 lines
1.9 KiB
C++
//===--- MinMaxUseInitializerListCheck.h - clang-tidy -----------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_MINMAXUSEINITIALIZERLISTCHECK_H
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#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_MINMAXUSEINITIALIZERLISTCHECK_H
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#include "../ClangTidyCheck.h"
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#include "../utils/IncludeInserter.h"
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namespace clang::tidy::modernize {
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/// Replaces nested ``std::min`` and ``std::max`` calls with an initializer list
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/// where applicable.
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///
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/// For example:
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///
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/// \code
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/// int a = std::max(std::max(i, j), k);
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/// \endcode
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///
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/// This code is transformed to:
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///
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/// \code
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/// int a = std::max({i, j, k});
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/// \endcode
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class MinMaxUseInitializerListCheck : public ClangTidyCheck {
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public:
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MinMaxUseInitializerListCheck(StringRef Name, ClangTidyContext *Context);
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void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
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void registerMatchers(ast_matchers::MatchFinder *Finder) override;
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void registerPPCallbacks(const SourceManager &SM, Preprocessor *PP,
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Preprocessor *ModuleExpanderPP) override;
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void check(const ast_matchers::MatchFinder::MatchResult &Match) override;
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bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
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return LangOpts.CPlusPlus11;
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}
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std::optional<TraversalKind> getCheckTraversalKind() const override {
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return TK_IgnoreUnlessSpelledInSource;
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}
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private:
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bool IgnoreNonTrivialTypes;
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std::uint64_t IgnoreTrivialTypesOfSizeAbove;
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utils::IncludeInserter Inserter;
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};
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} // namespace clang::tidy::modernize
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#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_MINMAXUSEINITIALIZERLISTCHECK_H
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