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105 lines
3.4 KiB
C++
105 lines
3.4 KiB
C++
//===--- SpecialMemberFunctionsCheck.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_CPPCOREGUIDELINES_SPECIAL_MEMBER_FUNCTIONS_H
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#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CPPCOREGUIDELINES_SPECIAL_MEMBER_FUNCTIONS_H
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#include "../ClangTidy.h"
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#include "llvm/ADT/DenseMapInfo.h"
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namespace clang {
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namespace tidy {
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namespace cppcoreguidelines {
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/// Checks for classes where some, but not all, of the special member functions
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/// are defined.
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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/cppcoreguidelines-special-member-functions.html
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class SpecialMemberFunctionsCheck : public ClangTidyCheck {
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public:
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SpecialMemberFunctionsCheck(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 check(const ast_matchers::MatchFinder::MatchResult &Result) override;
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void onEndOfTranslationUnit() override;
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enum class SpecialMemberFunctionKind : uint8_t {
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Destructor,
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DefaultDestructor,
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NonDefaultDestructor,
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CopyConstructor,
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CopyAssignment,
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MoveConstructor,
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MoveAssignment
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};
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using ClassDefId = std::pair<SourceLocation, std::string>;
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using ClassDefiningSpecialMembersMap =
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llvm::DenseMap<ClassDefId,
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llvm::SmallVector<SpecialMemberFunctionKind, 5>>;
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private:
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void checkForMissingMembers(
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const ClassDefId &ID,
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llvm::ArrayRef<SpecialMemberFunctionKind> DefinedSpecialMembers);
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const bool AllowMissingMoveFunctions;
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const bool AllowSoleDefaultDtor;
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ClassDefiningSpecialMembersMap ClassWithSpecialMembers;
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};
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} // namespace cppcoreguidelines
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} // namespace tidy
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} // namespace clang
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namespace llvm {
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/// Specialisation of DenseMapInfo to allow ClassDefId objects in DenseMaps
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/// FIXME: Move this to the corresponding cpp file as is done for
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/// clang-tidy/readability/IdentifierNamingCheck.cpp.
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template <>
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struct DenseMapInfo<
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clang::tidy::cppcoreguidelines::SpecialMemberFunctionsCheck::ClassDefId> {
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using ClassDefId =
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clang::tidy::cppcoreguidelines::SpecialMemberFunctionsCheck::ClassDefId;
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static inline ClassDefId getEmptyKey() {
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return ClassDefId(
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clang::SourceLocation::getFromRawEncoding(static_cast<unsigned>(-1)),
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"EMPTY");
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}
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static inline ClassDefId getTombstoneKey() {
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return ClassDefId(
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clang::SourceLocation::getFromRawEncoding(static_cast<unsigned>(-2)),
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"TOMBSTONE");
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}
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static unsigned getHashValue(ClassDefId Val) {
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assert(Val != getEmptyKey() && "Cannot hash the empty key!");
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assert(Val != getTombstoneKey() && "Cannot hash the tombstone key!");
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std::hash<ClassDefId::second_type> SecondHash;
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return Val.first.getRawEncoding() + SecondHash(Val.second);
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}
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static bool isEqual(const ClassDefId &LHS, const ClassDefId &RHS) {
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if (RHS == getEmptyKey())
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return LHS == getEmptyKey();
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if (RHS == getTombstoneKey())
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return LHS == getTombstoneKey();
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return LHS == RHS;
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}
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};
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} // namespace llvm
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#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CPPCOREGUIDELINES_SPECIAL_MEMBER_FUNCTIONS_H
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