a199fb1229
Expanding all macros in the printf/absl::StrFormat format string before conversion could easily break code if those macros are expanded change their definition between builds. It's important for this check to expand the <inttypes.h> PRI macros though, so let's ensure that the presence of any other macros in the format string causes the check to emit a warning and not perform any conversion.
53 lines
2.1 KiB
C++
53 lines
2.1 KiB
C++
//===--- UseStdFormatCheck.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_USESTDFORMATCHECK_H
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#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_USESTDFORMATCHECK_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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/// Converts calls to absl::StrFormat, or other functions via configuration
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/// options, to C++20's std::format, or another function via a configuration
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/// option, modifying the format string appropriately and removing
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/// now-unnecessary calls to std::string::c_str() and std::string::data().
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///
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/// For the user-facing documentation see:
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/// http://clang.llvm.org/extra/clang-tidy/checks/modernize/use-std-format.html
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class UseStdFormatCheck : public ClangTidyCheck {
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public:
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UseStdFormatCheck(StringRef Name, ClangTidyContext *Context);
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bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
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if (ReplacementFormatFunction == "std::format")
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return LangOpts.CPlusPlus20;
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return LangOpts.CPlusPlus;
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}
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void registerPPCallbacks(const SourceManager &SM, Preprocessor *PP,
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Preprocessor *ModuleExpanderPP) override;
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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 check(const ast_matchers::MatchFinder::MatchResult &Result) override;
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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 StrictMode;
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std::vector<StringRef> StrFormatLikeFunctions;
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StringRef ReplacementFormatFunction;
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utils::IncludeInserter IncludeInserter;
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std::optional<StringRef> MaybeHeaderToInclude;
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Preprocessor *PP = nullptr;
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};
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} // namespace clang::tidy::modernize
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#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_USESTDFORMATCHECK_H
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