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//===--- NarrowingConversionsCheck.h - clang-tidy----------------*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CPPCOREGUIDELINES_NARROWING_CONVERSIONS_H
#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CPPCOREGUIDELINES_NARROWING_CONVERSIONS_H
#include "../ClangTidyCheck.h"
namespace clang::tidy::cppcoreguidelines {
/// Checks for narrowing conversions, e.g:
/// int i = 0;
/// i += 0.1;
///
/// For the user-facing documentation see:
/// http://clang.llvm.org/extra/clang-tidy/checks/cppcoreguidelines/narrowing-conversions.html
class NarrowingConversionsCheck : public ClangTidyCheck {
public:
NarrowingConversionsCheck(StringRef Name, ClangTidyContext *Context);
void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
void registerMatchers(ast_matchers::MatchFinder *Finder) override;
void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
private:
void diagNarrowType(SourceLocation SourceLoc, const Expr &Lhs,
const Expr &Rhs);
void diagNarrowTypeToSignedInt(SourceLocation SourceLoc, const Expr &Lhs,
const Expr &Rhs);
void diagNarrowIntegerConstant(SourceLocation SourceLoc, const Expr &Lhs,
const Expr &Rhs, const llvm::APSInt &Value);
void diagNarrowIntegerConstantToSignedInt(SourceLocation SourceLoc,
const Expr &Lhs, const Expr &Rhs,
const llvm::APSInt &Value,
const uint64_t HexBits);
void diagNarrowConstant(SourceLocation SourceLoc, const Expr &Lhs,
const Expr &Rhs);
void diagConstantCast(SourceLocation SourceLoc, const Expr &Lhs,
const Expr &Rhs);
void diagNarrowTypeOrConstant(const ASTContext &Context,
SourceLocation SourceLoc, const Expr &Lhs,
const Expr &Rhs);
void handleIntegralCast(const ASTContext &Context, SourceLocation SourceLoc,
const Expr &Lhs, const Expr &Rhs);
void handleIntegralToBoolean(const ASTContext &Context,
SourceLocation SourceLoc, const Expr &Lhs,
const Expr &Rhs);
void handleIntegralToFloating(const ASTContext &Context,
SourceLocation SourceLoc, const Expr &Lhs,
const Expr &Rhs);
void handleFloatingToIntegral(const ASTContext &Context,
SourceLocation SourceLoc, const Expr &Lhs,
const Expr &Rhs);
void handleFloatingToBoolean(const ASTContext &Context,
SourceLocation SourceLoc, const Expr &Lhs,
const Expr &Rhs);
void handleBooleanToSignedIntegral(const ASTContext &Context,
SourceLocation SourceLoc, const Expr &Lhs,
const Expr &Rhs);
void handleFloatingCast(const ASTContext &Context, SourceLocation SourceLoc,
const Expr &Lhs, const Expr &Rhs);
void handleBinaryOperator(const ASTContext &Context, SourceLocation SourceLoc,
const Expr &Lhs, const Expr &Rhs);
bool handleConditionalOperator(const ASTContext &Context, const Expr &Lhs,
const Expr &Rhs);
void handleImplicitCast(const ASTContext &Context,
const ImplicitCastExpr &Cast);
void handleBinaryOperator(const ASTContext &Context,
const BinaryOperator &Op);
bool isWarningInhibitedByEquivalentSize(const ASTContext &Context,
const BuiltinType &FromType,
const BuiltinType &ToType) const;
const bool WarnOnIntegerNarrowingConversion;
const bool WarnOnIntegerToFloatingPointNarrowingConversion;
const bool WarnOnFloatingPointNarrowingConversion;
const bool WarnWithinTemplateInstantiation;
const bool WarnOnEquivalentBitWidth;
const StringRef IgnoreConversionFromTypes;
const bool PedanticMode;
};
} // namespace clang::tidy::cppcoreguidelines
#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CPPCOREGUIDELINES_NARROWING_CONVERSIONS_H
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