e7dd223ec4
The adds a check that replaces specific numeric literals like `32767` with the equivalent call to `std::numeric_limits` (such as `std::numeric_limits<int16_t>::max())`. Partially addresses #34434, but notably does not handle cases listed in the title post such as `~0` and `-1`.
39 lines
1.6 KiB
C++
39 lines
1.6 KiB
C++
//===--- UseNumericLimitsCheck.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_READABILITY_USENUMERICLIMITSCHECK_H
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#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_USENUMERICLIMITSCHECK_H
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#include "../ClangTidyCheck.h"
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#include "../utils/IncludeInserter.h"
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namespace clang::tidy::readability {
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/// Finds certain integer literals and suggests replacing them with equivalent
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/// ``std::numeric_limits`` calls.
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/// For the user-facing documentation see:
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/// http://clang.llvm.org/extra/clang-tidy/checks/readability/use-numeric-limits.html
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class UseNumericLimitsCheck : public ClangTidyCheck {
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public:
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UseNumericLimitsCheck(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 &Result) override;
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private:
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const llvm::SmallVector<std::pair<int64_t, std::string>> SignedConstants;
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const llvm::SmallVector<std::pair<uint64_t, std::string>> UnsignedConstants;
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utils::IncludeInserter Inserter;
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};
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} // namespace clang::tidy::readability
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#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_USENUMERICLIMITSCHECK_H
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