10 #include "clang/AST/ASTContext.h" 11 #include "clang/ASTMatchers/ASTMatchFinder.h" 12 #include "clang/Lex/Lexer.h" 21 switch (InitType->getScalarTypeKind()) {
22 case Type::STK_CPointer:
23 case Type::STK_BlockPointer:
24 case Type::STK_ObjCObjectPointer:
25 case Type::STK_MemberPointer:
31 case Type::STK_Integral:
32 switch (InitType->getAs<BuiltinType>()->getKind()) {
33 case BuiltinType::Char_U:
34 case BuiltinType::UChar:
35 case BuiltinType::Char_S:
36 case BuiltinType::SChar:
38 case BuiltinType::WChar_U:
39 case BuiltinType::WChar_S:
41 case BuiltinType::Char16:
43 case BuiltinType::Char32:
49 case Type::STK_Floating:
50 switch (InitType->getAs<BuiltinType>()->getKind()) {
51 case BuiltinType::Half:
52 case BuiltinType::Float:
58 case Type::STK_FloatingComplex:
59 case Type::STK_IntegralComplex:
61 InitType->getAs<ComplexType>()->getElementType());
63 case Type::STK_FixedPoint:
64 switch (InitType->getAs<BuiltinType>()->getKind()) {
65 case BuiltinType::ShortAccum:
66 case BuiltinType::SatShortAccum:
68 case BuiltinType::Accum:
69 case BuiltinType::SatAccum:
71 case BuiltinType::LongAccum:
72 case BuiltinType::SatLongAccum:
74 case BuiltinType::UShortAccum:
75 case BuiltinType::SatUShortAccum:
77 case BuiltinType::UAccum:
78 case BuiltinType::SatUAccum:
80 case BuiltinType::ULongAccum:
81 case BuiltinType::SatULongAccum:
83 case BuiltinType::ShortFract:
84 case BuiltinType::SatShortFract:
86 case BuiltinType::Fract:
87 case BuiltinType::SatFract:
89 case BuiltinType::LongFract:
90 case BuiltinType::SatLongFract:
92 case BuiltinType::UShortFract:
93 case BuiltinType::SatUShortFract:
95 case BuiltinType::UFract:
96 case BuiltinType::SatUFract:
98 case BuiltinType::ULongFract:
99 case BuiltinType::SatULongFract:
102 llvm_unreachable(
"Unhandled fixed point BuiltinType");
105 llvm_unreachable(
"Invalid scalar type kind");
109 switch (E->getStmtClass()) {
110 case Stmt::CXXNullPtrLiteralExprClass:
111 case Stmt::ImplicitValueInitExprClass:
113 case Stmt::InitListExprClass:
114 return cast<InitListExpr>(E)->getNumInits() == 0;
115 case Stmt::CharacterLiteralClass:
116 return !cast<CharacterLiteral>(E)->getValue();
117 case Stmt::CXXBoolLiteralExprClass:
118 return !cast<CXXBoolLiteralExpr>(E)->getValue();
119 case Stmt::IntegerLiteralClass:
120 return !cast<IntegerLiteral>(E)->getValue();
121 case Stmt::FloatingLiteralClass: {
122 llvm::APFloat Value = cast<FloatingLiteral>(E)->getValue();
123 return Value.isZero() && !Value.isNegative();
131 auto *UnaryOp = dyn_cast<UnaryOperator>(E);
132 if (UnaryOp && UnaryOp->getOpcode() == UO_Plus)
133 return UnaryOp->getSubExpr();
138 auto *InitList = dyn_cast<InitListExpr>(E);
139 if (InitList && InitList->getNumInits() == 1)
140 return InitList->getInit(0);
151 if (E1->getStmtClass() != E2->getStmtClass())
154 switch (E1->getStmtClass()) {
155 case Stmt::UnaryOperatorClass:
156 return sameValue(cast<UnaryOperator>(E1)->getSubExpr(),
157 cast<UnaryOperator>(E2)->getSubExpr());
158 case Stmt::CharacterLiteralClass:
159 return cast<CharacterLiteral>(E1)->getValue() ==
160 cast<CharacterLiteral>(E2)->getValue();
161 case Stmt::CXXBoolLiteralExprClass:
162 return cast<CXXBoolLiteralExpr>(E1)->getValue() ==
163 cast<CXXBoolLiteralExpr>(E2)->getValue();
164 case Stmt::IntegerLiteralClass:
165 return cast<IntegerLiteral>(E1)->getValue() ==
166 cast<IntegerLiteral>(E2)->getValue();
167 case Stmt::FloatingLiteralClass:
168 return cast<FloatingLiteral>(E1)->getValue().bitwiseIsEqual(
169 cast<FloatingLiteral>(E2)->getValue());
170 case Stmt::StringLiteralClass:
171 return cast<StringLiteral>(E1)->getString() ==
172 cast<StringLiteral>(E2)->getString();
173 case Stmt::DeclRefExprClass:
174 return cast<DeclRefExpr>(E1)->getDecl() == cast<DeclRefExpr>(E2)->getDecl();
180 UseDefaultMemberInitCheck::UseDefaultMemberInitCheck(StringRef
Name,
183 UseAssignment(Options.get(
"UseAssignment", 0) != 0),
184 IgnoreMacros(Options.getLocalOrGlobal(
"IgnoreMacros", true) != 0) {}
197 anyOf(stringLiteral(), characterLiteral(), integerLiteral(),
198 unaryOperator(anyOf(hasOperatorName(
"+"), hasOperatorName(
"-")),
199 hasUnaryOperand(integerLiteral())),
201 unaryOperator(anyOf(hasOperatorName(
"+"), hasOperatorName(
"-")),
202 hasUnaryOperand(floatLiteral())),
203 cxxBoolLiteral(), cxxNullPtrLiteralExpr(), implicitValueInitExpr(),
204 declRefExpr(to(enumConstantDecl())));
208 isDefaultConstructor(), unless(isInstantiated()),
209 forEachConstructorInitializer(
214 hasInClassInitializer(anything()),
215 hasParent(recordDecl(isUnion()))))),
216 isWritten(), withInitializer(ignoringImplicit(Init)))
222 unless(ast_matchers::isTemplateInstantiation()),
223 forEachConstructorInitializer(
224 cxxCtorInitializer(forField(hasInClassInitializer(anything())),
226 withInitializer(ignoringImplicit(Init)))
232 if (
const auto *Default =
233 Result.Nodes.getNodeAs<CXXCtorInitializer>(
"default"))
234 checkDefaultInit(Result, Default);
235 else if (
const auto *Existing =
236 Result.Nodes.getNodeAs<CXXCtorInitializer>(
"existing"))
237 checkExistingInit(Result, Existing);
239 llvm_unreachable(
"Bad Callback. No node provided.");
242 void UseDefaultMemberInitCheck::checkDefaultInit(
243 const MatchFinder::MatchResult &
Result,
const CXXCtorInitializer *Init) {
244 const FieldDecl *Field = Init->getAnyMember();
246 SourceLocation StartLoc = Field->getBeginLoc();
247 if (StartLoc.isMacroID() && IgnoreMacros)
250 SourceLocation FieldEnd =
251 Lexer::getLocForEndOfToken(Field->getSourceRange().getEnd(), 0,
253 SourceLocation LParenEnd = Lexer::getLocForEndOfToken(
254 Init->getLParenLoc(), 0, *Result.SourceManager,
getLangOpts());
255 CharSourceRange InitRange =
256 CharSourceRange::getCharRange(LParenEnd, Init->getRParenLoc());
258 bool ValueInit = isa<ImplicitValueInitExpr>(Init->getInit());
259 bool CanAssign = UseAssignment && (!ValueInit || !Init->getInit()->getType()->isEnumeralType());
262 diag(Field->getLocation(),
"use default member initializer for %0")
264 << FixItHint::CreateInsertion(FieldEnd, CanAssign ?
" = " :
"{")
265 << FixItHint::CreateInsertionFromRange(FieldEnd, InitRange);
267 if (CanAssign && ValueInit)
268 Diag << FixItHint::CreateInsertion(
272 Diag << FixItHint::CreateInsertion(FieldEnd,
"}");
274 Diag << FixItHint::CreateRemoval(Init->getSourceRange());
277 void UseDefaultMemberInitCheck::checkExistingInit(
278 const MatchFinder::MatchResult &Result,
const CXXCtorInitializer *Init) {
279 const FieldDecl *Field = Init->getAnyMember();
281 if (!
sameValue(Field->getInClassInitializer(), Init->getInit()))
284 diag(Init->getSourceLocation(),
"member initializer for %0 is redundant")
286 << FixItHint::CreateRemoval(Init->getSourceRange());
void check(const ast_matchers::MatchFinder::MatchResult &Result) override
ClangTidyChecks that register ASTMatchers should do the actual work in here.
static const Expr * getInitializer(const Expr *E)
static const Expr * ignoreUnaryPlus(const Expr *E)
Base class for all clang-tidy checks.
const LangOptions & getLangOpts() const
Returns the language options from the context.
void registerMatchers(ast_matchers::MatchFinder *Finder) override
Override this to register AST matchers with Finder.
void store(ClangTidyOptions::OptionMap &Options, StringRef LocalName, StringRef Value) const
Stores an option with the check-local name LocalName with string value Value to Options.
static constexpr llvm::StringLiteral Name
std::map< std::string, std::string > OptionMap
static StringRef getValueOfValueInit(const QualType InitType)
static bool isZero(const Expr *E)
void storeOptions(ClangTidyOptions::OptionMap &Opts) override
Should store all options supported by this check with their current values or default values for opti...
===– Representation.cpp - ClangDoc Representation --------—*- C++ -*-===//
Every ClangTidyCheck reports errors through a DiagnosticsEngine provided by this context.
llvm::Optional< llvm::Expected< tooling::AtomicChanges > > Result
DiagnosticBuilder diag(SourceLocation Loc, StringRef Description, DiagnosticIDs::Level Level=DiagnosticIDs::Warning)
Add a diagnostic with the check's name.
static bool sameValue(const Expr *E1, const Expr *E2)