| File: | clang/lib/AST/Expr.cpp |
| Warning: | line 751, column 7 Called C++ object pointer is null |
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| 1 | //===--- Expr.cpp - Expression AST Node Implementation --------------------===// | ||||||||
| 2 | // | ||||||||
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | ||||||||
| 4 | // See https://llvm.org/LICENSE.txt for license information. | ||||||||
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | ||||||||
| 6 | // | ||||||||
| 7 | //===----------------------------------------------------------------------===// | ||||||||
| 8 | // | ||||||||
| 9 | // This file implements the Expr class and subclasses. | ||||||||
| 10 | // | ||||||||
| 11 | //===----------------------------------------------------------------------===// | ||||||||
| 12 | |||||||||
| 13 | #include "clang/AST/Expr.h" | ||||||||
| 14 | #include "clang/AST/APValue.h" | ||||||||
| 15 | #include "clang/AST/ASTContext.h" | ||||||||
| 16 | #include "clang/AST/Attr.h" | ||||||||
| 17 | #include "clang/AST/ComputeDependence.h" | ||||||||
| 18 | #include "clang/AST/DeclCXX.h" | ||||||||
| 19 | #include "clang/AST/DeclObjC.h" | ||||||||
| 20 | #include "clang/AST/DeclTemplate.h" | ||||||||
| 21 | #include "clang/AST/DependenceFlags.h" | ||||||||
| 22 | #include "clang/AST/EvaluatedExprVisitor.h" | ||||||||
| 23 | #include "clang/AST/ExprCXX.h" | ||||||||
| 24 | #include "clang/AST/IgnoreExpr.h" | ||||||||
| 25 | #include "clang/AST/Mangle.h" | ||||||||
| 26 | #include "clang/AST/RecordLayout.h" | ||||||||
| 27 | #include "clang/AST/StmtVisitor.h" | ||||||||
| 28 | #include "clang/Basic/Builtins.h" | ||||||||
| 29 | #include "clang/Basic/CharInfo.h" | ||||||||
| 30 | #include "clang/Basic/SourceManager.h" | ||||||||
| 31 | #include "clang/Basic/TargetInfo.h" | ||||||||
| 32 | #include "clang/Lex/Lexer.h" | ||||||||
| 33 | #include "clang/Lex/LiteralSupport.h" | ||||||||
| 34 | #include "llvm/Support/ErrorHandling.h" | ||||||||
| 35 | #include "llvm/Support/raw_ostream.h" | ||||||||
| 36 | #include <algorithm> | ||||||||
| 37 | #include <cstring> | ||||||||
| 38 | using namespace clang; | ||||||||
| 39 | |||||||||
| 40 | const Expr *Expr::getBestDynamicClassTypeExpr() const { | ||||||||
| 41 | const Expr *E = this; | ||||||||
| 42 | while (true) { | ||||||||
| 43 | E = E->IgnoreParenBaseCasts(); | ||||||||
| 44 | |||||||||
| 45 | // Follow the RHS of a comma operator. | ||||||||
| 46 | if (auto *BO = dyn_cast<BinaryOperator>(E)) { | ||||||||
| 47 | if (BO->getOpcode() == BO_Comma) { | ||||||||
| 48 | E = BO->getRHS(); | ||||||||
| 49 | continue; | ||||||||
| 50 | } | ||||||||
| 51 | } | ||||||||
| 52 | |||||||||
| 53 | // Step into initializer for materialized temporaries. | ||||||||
| 54 | if (auto *MTE = dyn_cast<MaterializeTemporaryExpr>(E)) { | ||||||||
| 55 | E = MTE->getSubExpr(); | ||||||||
| 56 | continue; | ||||||||
| 57 | } | ||||||||
| 58 | |||||||||
| 59 | break; | ||||||||
| 60 | } | ||||||||
| 61 | |||||||||
| 62 | return E; | ||||||||
| 63 | } | ||||||||
| 64 | |||||||||
| 65 | const CXXRecordDecl *Expr::getBestDynamicClassType() const { | ||||||||
| 66 | const Expr *E = getBestDynamicClassTypeExpr(); | ||||||||
| 67 | QualType DerivedType = E->getType(); | ||||||||
| 68 | if (const PointerType *PTy = DerivedType->getAs<PointerType>()) | ||||||||
| 69 | DerivedType = PTy->getPointeeType(); | ||||||||
| 70 | |||||||||
| 71 | if (DerivedType->isDependentType()) | ||||||||
| 72 | return nullptr; | ||||||||
| 73 | |||||||||
| 74 | const RecordType *Ty = DerivedType->castAs<RecordType>(); | ||||||||
| 75 | Decl *D = Ty->getDecl(); | ||||||||
| 76 | return cast<CXXRecordDecl>(D); | ||||||||
| 77 | } | ||||||||
| 78 | |||||||||
| 79 | const Expr *Expr::skipRValueSubobjectAdjustments( | ||||||||
| 80 | SmallVectorImpl<const Expr *> &CommaLHSs, | ||||||||
| 81 | SmallVectorImpl<SubobjectAdjustment> &Adjustments) const { | ||||||||
| 82 | const Expr *E = this; | ||||||||
| 83 | while (true) { | ||||||||
| 84 | E = E->IgnoreParens(); | ||||||||
| 85 | |||||||||
| 86 | if (const CastExpr *CE = dyn_cast<CastExpr>(E)) { | ||||||||
| 87 | if ((CE->getCastKind() == CK_DerivedToBase || | ||||||||
| 88 | CE->getCastKind() == CK_UncheckedDerivedToBase) && | ||||||||
| 89 | E->getType()->isRecordType()) { | ||||||||
| 90 | E = CE->getSubExpr(); | ||||||||
| 91 | auto *Derived = | ||||||||
| 92 | cast<CXXRecordDecl>(E->getType()->castAs<RecordType>()->getDecl()); | ||||||||
| 93 | Adjustments.push_back(SubobjectAdjustment(CE, Derived)); | ||||||||
| 94 | continue; | ||||||||
| 95 | } | ||||||||
| 96 | |||||||||
| 97 | if (CE->getCastKind() == CK_NoOp) { | ||||||||
| 98 | E = CE->getSubExpr(); | ||||||||
| 99 | continue; | ||||||||
| 100 | } | ||||||||
| 101 | } else if (const MemberExpr *ME = dyn_cast<MemberExpr>(E)) { | ||||||||
| 102 | if (!ME->isArrow()) { | ||||||||
| 103 | assert(ME->getBase()->getType()->isRecordType())((ME->getBase()->getType()->isRecordType()) ? static_cast <void> (0) : __assert_fail ("ME->getBase()->getType()->isRecordType()" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 103, __PRETTY_FUNCTION__)); | ||||||||
| 104 | if (FieldDecl *Field = dyn_cast<FieldDecl>(ME->getMemberDecl())) { | ||||||||
| 105 | if (!Field->isBitField() && !Field->getType()->isReferenceType()) { | ||||||||
| 106 | E = ME->getBase(); | ||||||||
| 107 | Adjustments.push_back(SubobjectAdjustment(Field)); | ||||||||
| 108 | continue; | ||||||||
| 109 | } | ||||||||
| 110 | } | ||||||||
| 111 | } | ||||||||
| 112 | } else if (const BinaryOperator *BO = dyn_cast<BinaryOperator>(E)) { | ||||||||
| 113 | if (BO->getOpcode() == BO_PtrMemD) { | ||||||||
| 114 | assert(BO->getRHS()->isRValue())((BO->getRHS()->isRValue()) ? static_cast<void> ( 0) : __assert_fail ("BO->getRHS()->isRValue()", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 114, __PRETTY_FUNCTION__)); | ||||||||
| 115 | E = BO->getLHS(); | ||||||||
| 116 | const MemberPointerType *MPT = | ||||||||
| 117 | BO->getRHS()->getType()->getAs<MemberPointerType>(); | ||||||||
| 118 | Adjustments.push_back(SubobjectAdjustment(MPT, BO->getRHS())); | ||||||||
| 119 | continue; | ||||||||
| 120 | } | ||||||||
| 121 | if (BO->getOpcode() == BO_Comma) { | ||||||||
| 122 | CommaLHSs.push_back(BO->getLHS()); | ||||||||
| 123 | E = BO->getRHS(); | ||||||||
| 124 | continue; | ||||||||
| 125 | } | ||||||||
| 126 | } | ||||||||
| 127 | |||||||||
| 128 | // Nothing changed. | ||||||||
| 129 | break; | ||||||||
| 130 | } | ||||||||
| 131 | return E; | ||||||||
| 132 | } | ||||||||
| 133 | |||||||||
| 134 | bool Expr::isKnownToHaveBooleanValue(bool Semantic) const { | ||||||||
| 135 | const Expr *E = IgnoreParens(); | ||||||||
| 136 | |||||||||
| 137 | // If this value has _Bool type, it is obvious 0/1. | ||||||||
| 138 | if (E->getType()->isBooleanType()) return true; | ||||||||
| 139 | // If this is a non-scalar-integer type, we don't care enough to try. | ||||||||
| 140 | if (!E->getType()->isIntegralOrEnumerationType()) return false; | ||||||||
| 141 | |||||||||
| 142 | if (const UnaryOperator *UO = dyn_cast<UnaryOperator>(E)) { | ||||||||
| 143 | switch (UO->getOpcode()) { | ||||||||
| 144 | case UO_Plus: | ||||||||
| 145 | return UO->getSubExpr()->isKnownToHaveBooleanValue(Semantic); | ||||||||
| 146 | case UO_LNot: | ||||||||
| 147 | return true; | ||||||||
| 148 | default: | ||||||||
| 149 | return false; | ||||||||
| 150 | } | ||||||||
| 151 | } | ||||||||
| 152 | |||||||||
| 153 | // Only look through implicit casts. If the user writes | ||||||||
| 154 | // '(int) (a && b)' treat it as an arbitrary int. | ||||||||
| 155 | // FIXME: Should we look through any cast expression in !Semantic mode? | ||||||||
| 156 | if (const ImplicitCastExpr *CE = dyn_cast<ImplicitCastExpr>(E)) | ||||||||
| 157 | return CE->getSubExpr()->isKnownToHaveBooleanValue(Semantic); | ||||||||
| 158 | |||||||||
| 159 | if (const BinaryOperator *BO = dyn_cast<BinaryOperator>(E)) { | ||||||||
| 160 | switch (BO->getOpcode()) { | ||||||||
| 161 | default: return false; | ||||||||
| 162 | case BO_LT: // Relational operators. | ||||||||
| 163 | case BO_GT: | ||||||||
| 164 | case BO_LE: | ||||||||
| 165 | case BO_GE: | ||||||||
| 166 | case BO_EQ: // Equality operators. | ||||||||
| 167 | case BO_NE: | ||||||||
| 168 | case BO_LAnd: // AND operator. | ||||||||
| 169 | case BO_LOr: // Logical OR operator. | ||||||||
| 170 | return true; | ||||||||
| 171 | |||||||||
| 172 | case BO_And: // Bitwise AND operator. | ||||||||
| 173 | case BO_Xor: // Bitwise XOR operator. | ||||||||
| 174 | case BO_Or: // Bitwise OR operator. | ||||||||
| 175 | // Handle things like (x==2)|(y==12). | ||||||||
| 176 | return BO->getLHS()->isKnownToHaveBooleanValue(Semantic) && | ||||||||
| 177 | BO->getRHS()->isKnownToHaveBooleanValue(Semantic); | ||||||||
| 178 | |||||||||
| 179 | case BO_Comma: | ||||||||
| 180 | case BO_Assign: | ||||||||
| 181 | return BO->getRHS()->isKnownToHaveBooleanValue(Semantic); | ||||||||
| 182 | } | ||||||||
| 183 | } | ||||||||
| 184 | |||||||||
| 185 | if (const ConditionalOperator *CO = dyn_cast<ConditionalOperator>(E)) | ||||||||
| 186 | return CO->getTrueExpr()->isKnownToHaveBooleanValue(Semantic) && | ||||||||
| 187 | CO->getFalseExpr()->isKnownToHaveBooleanValue(Semantic); | ||||||||
| 188 | |||||||||
| 189 | if (isa<ObjCBoolLiteralExpr>(E)) | ||||||||
| 190 | return true; | ||||||||
| 191 | |||||||||
| 192 | if (const auto *OVE = dyn_cast<OpaqueValueExpr>(E)) | ||||||||
| 193 | return OVE->getSourceExpr()->isKnownToHaveBooleanValue(Semantic); | ||||||||
| 194 | |||||||||
| 195 | if (const FieldDecl *FD = E->getSourceBitField()) | ||||||||
| 196 | if (!Semantic && FD->getType()->isUnsignedIntegerType() && | ||||||||
| 197 | !FD->getBitWidth()->isValueDependent() && | ||||||||
| 198 | FD->getBitWidthValue(FD->getASTContext()) == 1) | ||||||||
| 199 | return true; | ||||||||
| 200 | |||||||||
| 201 | return false; | ||||||||
| 202 | } | ||||||||
| 203 | |||||||||
| 204 | // Amusing macro metaprogramming hack: check whether a class provides | ||||||||
| 205 | // a more specific implementation of getExprLoc(). | ||||||||
| 206 | // | ||||||||
| 207 | // See also Stmt.cpp:{getBeginLoc(),getEndLoc()}. | ||||||||
| 208 | namespace { | ||||||||
| 209 | /// This implementation is used when a class provides a custom | ||||||||
| 210 | /// implementation of getExprLoc. | ||||||||
| 211 | template <class E, class T> | ||||||||
| 212 | SourceLocation getExprLocImpl(const Expr *expr, | ||||||||
| 213 | SourceLocation (T::*v)() const) { | ||||||||
| 214 | return static_cast<const E*>(expr)->getExprLoc(); | ||||||||
| 215 | } | ||||||||
| 216 | |||||||||
| 217 | /// This implementation is used when a class doesn't provide | ||||||||
| 218 | /// a custom implementation of getExprLoc. Overload resolution | ||||||||
| 219 | /// should pick it over the implementation above because it's | ||||||||
| 220 | /// more specialized according to function template partial ordering. | ||||||||
| 221 | template <class E> | ||||||||
| 222 | SourceLocation getExprLocImpl(const Expr *expr, | ||||||||
| 223 | SourceLocation (Expr::*v)() const) { | ||||||||
| 224 | return static_cast<const E *>(expr)->getBeginLoc(); | ||||||||
| 225 | } | ||||||||
| 226 | } | ||||||||
| 227 | |||||||||
| 228 | SourceLocation Expr::getExprLoc() const { | ||||||||
| 229 | switch (getStmtClass()) { | ||||||||
| 230 | case Stmt::NoStmtClass: llvm_unreachable("statement without class")::llvm::llvm_unreachable_internal("statement without class", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 230); | ||||||||
| 231 | #define ABSTRACT_STMT(type) | ||||||||
| 232 | #define STMT(type, base) \ | ||||||||
| 233 | case Stmt::type##Class: break; | ||||||||
| 234 | #define EXPR(type, base) \ | ||||||||
| 235 | case Stmt::type##Class: return getExprLocImpl<type>(this, &type::getExprLoc); | ||||||||
| 236 | #include "clang/AST/StmtNodes.inc" | ||||||||
| 237 | } | ||||||||
| 238 | llvm_unreachable("unknown expression kind")::llvm::llvm_unreachable_internal("unknown expression kind", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 238); | ||||||||
| 239 | } | ||||||||
| 240 | |||||||||
| 241 | //===----------------------------------------------------------------------===// | ||||||||
| 242 | // Primary Expressions. | ||||||||
| 243 | //===----------------------------------------------------------------------===// | ||||||||
| 244 | |||||||||
| 245 | static void AssertResultStorageKind(ConstantExpr::ResultStorageKind Kind) { | ||||||||
| 246 | assert((Kind == ConstantExpr::RSK_APValue ||(((Kind == ConstantExpr::RSK_APValue || Kind == ConstantExpr:: RSK_Int64 || Kind == ConstantExpr::RSK_None) && "Invalid StorageKind Value" ) ? static_cast<void> (0) : __assert_fail ("(Kind == ConstantExpr::RSK_APValue || Kind == ConstantExpr::RSK_Int64 || Kind == ConstantExpr::RSK_None) && \"Invalid StorageKind Value\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 248, __PRETTY_FUNCTION__)) | ||||||||
| 247 | Kind == ConstantExpr::RSK_Int64 || Kind == ConstantExpr::RSK_None) &&(((Kind == ConstantExpr::RSK_APValue || Kind == ConstantExpr:: RSK_Int64 || Kind == ConstantExpr::RSK_None) && "Invalid StorageKind Value" ) ? static_cast<void> (0) : __assert_fail ("(Kind == ConstantExpr::RSK_APValue || Kind == ConstantExpr::RSK_Int64 || Kind == ConstantExpr::RSK_None) && \"Invalid StorageKind Value\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 248, __PRETTY_FUNCTION__)) | ||||||||
| 248 | "Invalid StorageKind Value")(((Kind == ConstantExpr::RSK_APValue || Kind == ConstantExpr:: RSK_Int64 || Kind == ConstantExpr::RSK_None) && "Invalid StorageKind Value" ) ? static_cast<void> (0) : __assert_fail ("(Kind == ConstantExpr::RSK_APValue || Kind == ConstantExpr::RSK_Int64 || Kind == ConstantExpr::RSK_None) && \"Invalid StorageKind Value\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 248, __PRETTY_FUNCTION__)); | ||||||||
| 249 | (void)Kind; | ||||||||
| 250 | } | ||||||||
| 251 | |||||||||
| 252 | ConstantExpr::ResultStorageKind | ||||||||
| 253 | ConstantExpr::getStorageKind(const APValue &Value) { | ||||||||
| 254 | switch (Value.getKind()) { | ||||||||
| 255 | case APValue::None: | ||||||||
| 256 | case APValue::Indeterminate: | ||||||||
| 257 | return ConstantExpr::RSK_None; | ||||||||
| 258 | case APValue::Int: | ||||||||
| 259 | if (!Value.getInt().needsCleanup()) | ||||||||
| 260 | return ConstantExpr::RSK_Int64; | ||||||||
| 261 | LLVM_FALLTHROUGH[[gnu::fallthrough]]; | ||||||||
| 262 | default: | ||||||||
| 263 | return ConstantExpr::RSK_APValue; | ||||||||
| 264 | } | ||||||||
| 265 | } | ||||||||
| 266 | |||||||||
| 267 | ConstantExpr::ResultStorageKind | ||||||||
| 268 | ConstantExpr::getStorageKind(const Type *T, const ASTContext &Context) { | ||||||||
| 269 | if (T->isIntegralOrEnumerationType() && Context.getTypeInfo(T).Width <= 64) | ||||||||
| 270 | return ConstantExpr::RSK_Int64; | ||||||||
| 271 | return ConstantExpr::RSK_APValue; | ||||||||
| 272 | } | ||||||||
| 273 | |||||||||
| 274 | ConstantExpr::ConstantExpr(Expr *SubExpr, ResultStorageKind StorageKind, | ||||||||
| 275 | bool IsImmediateInvocation) | ||||||||
| 276 | : FullExpr(ConstantExprClass, SubExpr) { | ||||||||
| 277 | ConstantExprBits.ResultKind = StorageKind; | ||||||||
| 278 | ConstantExprBits.APValueKind = APValue::None; | ||||||||
| 279 | ConstantExprBits.IsUnsigned = false; | ||||||||
| 280 | ConstantExprBits.BitWidth = 0; | ||||||||
| 281 | ConstantExprBits.HasCleanup = false; | ||||||||
| 282 | ConstantExprBits.IsImmediateInvocation = IsImmediateInvocation; | ||||||||
| 283 | |||||||||
| 284 | if (StorageKind == ConstantExpr::RSK_APValue) | ||||||||
| 285 | ::new (getTrailingObjects<APValue>()) APValue(); | ||||||||
| 286 | } | ||||||||
| 287 | |||||||||
| 288 | ConstantExpr *ConstantExpr::Create(const ASTContext &Context, Expr *E, | ||||||||
| 289 | ResultStorageKind StorageKind, | ||||||||
| 290 | bool IsImmediateInvocation) { | ||||||||
| 291 | assert(!isa<ConstantExpr>(E))((!isa<ConstantExpr>(E)) ? static_cast<void> (0) : __assert_fail ("!isa<ConstantExpr>(E)", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 291, __PRETTY_FUNCTION__)); | ||||||||
| 292 | AssertResultStorageKind(StorageKind); | ||||||||
| 293 | |||||||||
| 294 | unsigned Size = totalSizeToAlloc<APValue, uint64_t>( | ||||||||
| 295 | StorageKind == ConstantExpr::RSK_APValue, | ||||||||
| 296 | StorageKind == ConstantExpr::RSK_Int64); | ||||||||
| 297 | void *Mem = Context.Allocate(Size, alignof(ConstantExpr)); | ||||||||
| 298 | return new (Mem) ConstantExpr(E, StorageKind, IsImmediateInvocation); | ||||||||
| 299 | } | ||||||||
| 300 | |||||||||
| 301 | ConstantExpr *ConstantExpr::Create(const ASTContext &Context, Expr *E, | ||||||||
| 302 | const APValue &Result) { | ||||||||
| 303 | ResultStorageKind StorageKind = getStorageKind(Result); | ||||||||
| 304 | ConstantExpr *Self = Create(Context, E, StorageKind); | ||||||||
| 305 | Self->SetResult(Result, Context); | ||||||||
| 306 | return Self; | ||||||||
| 307 | } | ||||||||
| 308 | |||||||||
| 309 | ConstantExpr::ConstantExpr(EmptyShell Empty, ResultStorageKind StorageKind) | ||||||||
| 310 | : FullExpr(ConstantExprClass, Empty) { | ||||||||
| 311 | ConstantExprBits.ResultKind = StorageKind; | ||||||||
| 312 | |||||||||
| 313 | if (StorageKind == ConstantExpr::RSK_APValue) | ||||||||
| 314 | ::new (getTrailingObjects<APValue>()) APValue(); | ||||||||
| 315 | } | ||||||||
| 316 | |||||||||
| 317 | ConstantExpr *ConstantExpr::CreateEmpty(const ASTContext &Context, | ||||||||
| 318 | ResultStorageKind StorageKind) { | ||||||||
| 319 | AssertResultStorageKind(StorageKind); | ||||||||
| 320 | |||||||||
| 321 | unsigned Size = totalSizeToAlloc<APValue, uint64_t>( | ||||||||
| 322 | StorageKind == ConstantExpr::RSK_APValue, | ||||||||
| 323 | StorageKind == ConstantExpr::RSK_Int64); | ||||||||
| 324 | void *Mem = Context.Allocate(Size, alignof(ConstantExpr)); | ||||||||
| 325 | return new (Mem) ConstantExpr(EmptyShell(), StorageKind); | ||||||||
| 326 | } | ||||||||
| 327 | |||||||||
| 328 | void ConstantExpr::MoveIntoResult(APValue &Value, const ASTContext &Context) { | ||||||||
| 329 | assert((unsigned)getStorageKind(Value) <= ConstantExprBits.ResultKind &&(((unsigned)getStorageKind(Value) <= ConstantExprBits.ResultKind && "Invalid storage for this value kind") ? static_cast <void> (0) : __assert_fail ("(unsigned)getStorageKind(Value) <= ConstantExprBits.ResultKind && \"Invalid storage for this value kind\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 330, __PRETTY_FUNCTION__)) | ||||||||
| 330 | "Invalid storage for this value kind")(((unsigned)getStorageKind(Value) <= ConstantExprBits.ResultKind && "Invalid storage for this value kind") ? static_cast <void> (0) : __assert_fail ("(unsigned)getStorageKind(Value) <= ConstantExprBits.ResultKind && \"Invalid storage for this value kind\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 330, __PRETTY_FUNCTION__)); | ||||||||
| 331 | ConstantExprBits.APValueKind = Value.getKind(); | ||||||||
| 332 | switch (ConstantExprBits.ResultKind) { | ||||||||
| 333 | case RSK_None: | ||||||||
| 334 | return; | ||||||||
| 335 | case RSK_Int64: | ||||||||
| 336 | Int64Result() = *Value.getInt().getRawData(); | ||||||||
| 337 | ConstantExprBits.BitWidth = Value.getInt().getBitWidth(); | ||||||||
| 338 | ConstantExprBits.IsUnsigned = Value.getInt().isUnsigned(); | ||||||||
| 339 | return; | ||||||||
| 340 | case RSK_APValue: | ||||||||
| 341 | if (!ConstantExprBits.HasCleanup && Value.needsCleanup()) { | ||||||||
| 342 | ConstantExprBits.HasCleanup = true; | ||||||||
| 343 | Context.addDestruction(&APValueResult()); | ||||||||
| 344 | } | ||||||||
| 345 | APValueResult() = std::move(Value); | ||||||||
| 346 | return; | ||||||||
| 347 | } | ||||||||
| 348 | llvm_unreachable("Invalid ResultKind Bits")::llvm::llvm_unreachable_internal("Invalid ResultKind Bits", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 348); | ||||||||
| 349 | } | ||||||||
| 350 | |||||||||
| 351 | llvm::APSInt ConstantExpr::getResultAsAPSInt() const { | ||||||||
| 352 | switch (ConstantExprBits.ResultKind) { | ||||||||
| 353 | case ConstantExpr::RSK_APValue: | ||||||||
| 354 | return APValueResult().getInt(); | ||||||||
| 355 | case ConstantExpr::RSK_Int64: | ||||||||
| 356 | return llvm::APSInt(llvm::APInt(ConstantExprBits.BitWidth, Int64Result()), | ||||||||
| 357 | ConstantExprBits.IsUnsigned); | ||||||||
| 358 | default: | ||||||||
| 359 | llvm_unreachable("invalid Accessor")::llvm::llvm_unreachable_internal("invalid Accessor", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 359); | ||||||||
| 360 | } | ||||||||
| 361 | } | ||||||||
| 362 | |||||||||
| 363 | APValue ConstantExpr::getAPValueResult() const { | ||||||||
| 364 | |||||||||
| 365 | switch (ConstantExprBits.ResultKind) { | ||||||||
| 366 | case ConstantExpr::RSK_APValue: | ||||||||
| 367 | return APValueResult(); | ||||||||
| 368 | case ConstantExpr::RSK_Int64: | ||||||||
| 369 | return APValue( | ||||||||
| 370 | llvm::APSInt(llvm::APInt(ConstantExprBits.BitWidth, Int64Result()), | ||||||||
| 371 | ConstantExprBits.IsUnsigned)); | ||||||||
| 372 | case ConstantExpr::RSK_None: | ||||||||
| 373 | if (ConstantExprBits.APValueKind == APValue::Indeterminate) | ||||||||
| 374 | return APValue::IndeterminateValue(); | ||||||||
| 375 | return APValue(); | ||||||||
| 376 | } | ||||||||
| 377 | llvm_unreachable("invalid ResultKind")::llvm::llvm_unreachable_internal("invalid ResultKind", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 377); | ||||||||
| 378 | } | ||||||||
| 379 | |||||||||
| 380 | DeclRefExpr::DeclRefExpr(const ASTContext &Ctx, ValueDecl *D, | ||||||||
| 381 | bool RefersToEnclosingVariableOrCapture, QualType T, | ||||||||
| 382 | ExprValueKind VK, SourceLocation L, | ||||||||
| 383 | const DeclarationNameLoc &LocInfo, | ||||||||
| 384 | NonOdrUseReason NOUR) | ||||||||
| 385 | : Expr(DeclRefExprClass, T, VK, OK_Ordinary), D(D), DNLoc(LocInfo) { | ||||||||
| 386 | DeclRefExprBits.HasQualifier = false; | ||||||||
| 387 | DeclRefExprBits.HasTemplateKWAndArgsInfo = false; | ||||||||
| 388 | DeclRefExprBits.HasFoundDecl = false; | ||||||||
| 389 | DeclRefExprBits.HadMultipleCandidates = false; | ||||||||
| 390 | DeclRefExprBits.RefersToEnclosingVariableOrCapture = | ||||||||
| 391 | RefersToEnclosingVariableOrCapture; | ||||||||
| 392 | DeclRefExprBits.NonOdrUseReason = NOUR; | ||||||||
| 393 | DeclRefExprBits.Loc = L; | ||||||||
| 394 | setDependence(computeDependence(this, Ctx)); | ||||||||
| 395 | } | ||||||||
| 396 | |||||||||
| 397 | DeclRefExpr::DeclRefExpr(const ASTContext &Ctx, | ||||||||
| 398 | NestedNameSpecifierLoc QualifierLoc, | ||||||||
| 399 | SourceLocation TemplateKWLoc, ValueDecl *D, | ||||||||
| 400 | bool RefersToEnclosingVariableOrCapture, | ||||||||
| 401 | const DeclarationNameInfo &NameInfo, NamedDecl *FoundD, | ||||||||
| 402 | const TemplateArgumentListInfo *TemplateArgs, | ||||||||
| 403 | QualType T, ExprValueKind VK, NonOdrUseReason NOUR) | ||||||||
| 404 | : Expr(DeclRefExprClass, T, VK, OK_Ordinary), D(D), | ||||||||
| 405 | DNLoc(NameInfo.getInfo()) { | ||||||||
| 406 | DeclRefExprBits.Loc = NameInfo.getLoc(); | ||||||||
| 407 | DeclRefExprBits.HasQualifier = QualifierLoc ? 1 : 0; | ||||||||
| 408 | if (QualifierLoc) | ||||||||
| 409 | new (getTrailingObjects<NestedNameSpecifierLoc>()) | ||||||||
| 410 | NestedNameSpecifierLoc(QualifierLoc); | ||||||||
| 411 | DeclRefExprBits.HasFoundDecl = FoundD ? 1 : 0; | ||||||||
| 412 | if (FoundD) | ||||||||
| 413 | *getTrailingObjects<NamedDecl *>() = FoundD; | ||||||||
| 414 | DeclRefExprBits.HasTemplateKWAndArgsInfo | ||||||||
| 415 | = (TemplateArgs || TemplateKWLoc.isValid()) ? 1 : 0; | ||||||||
| 416 | DeclRefExprBits.RefersToEnclosingVariableOrCapture = | ||||||||
| 417 | RefersToEnclosingVariableOrCapture; | ||||||||
| 418 | DeclRefExprBits.NonOdrUseReason = NOUR; | ||||||||
| 419 | if (TemplateArgs) { | ||||||||
| 420 | auto Deps = TemplateArgumentDependence::None; | ||||||||
| 421 | getTrailingObjects<ASTTemplateKWAndArgsInfo>()->initializeFrom( | ||||||||
| 422 | TemplateKWLoc, *TemplateArgs, getTrailingObjects<TemplateArgumentLoc>(), | ||||||||
| 423 | Deps); | ||||||||
| 424 | assert(!(Deps & TemplateArgumentDependence::Dependent) &&((!(Deps & TemplateArgumentDependence::Dependent) && "built a DeclRefExpr with dependent template args") ? static_cast <void> (0) : __assert_fail ("!(Deps & TemplateArgumentDependence::Dependent) && \"built a DeclRefExpr with dependent template args\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 425, __PRETTY_FUNCTION__)) | ||||||||
| 425 | "built a DeclRefExpr with dependent template args")((!(Deps & TemplateArgumentDependence::Dependent) && "built a DeclRefExpr with dependent template args") ? static_cast <void> (0) : __assert_fail ("!(Deps & TemplateArgumentDependence::Dependent) && \"built a DeclRefExpr with dependent template args\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 425, __PRETTY_FUNCTION__)); | ||||||||
| 426 | } else if (TemplateKWLoc.isValid()) { | ||||||||
| 427 | getTrailingObjects<ASTTemplateKWAndArgsInfo>()->initializeFrom( | ||||||||
| 428 | TemplateKWLoc); | ||||||||
| 429 | } | ||||||||
| 430 | DeclRefExprBits.HadMultipleCandidates = 0; | ||||||||
| 431 | setDependence(computeDependence(this, Ctx)); | ||||||||
| 432 | } | ||||||||
| 433 | |||||||||
| 434 | DeclRefExpr *DeclRefExpr::Create(const ASTContext &Context, | ||||||||
| 435 | NestedNameSpecifierLoc QualifierLoc, | ||||||||
| 436 | SourceLocation TemplateKWLoc, ValueDecl *D, | ||||||||
| 437 | bool RefersToEnclosingVariableOrCapture, | ||||||||
| 438 | SourceLocation NameLoc, QualType T, | ||||||||
| 439 | ExprValueKind VK, NamedDecl *FoundD, | ||||||||
| 440 | const TemplateArgumentListInfo *TemplateArgs, | ||||||||
| 441 | NonOdrUseReason NOUR) { | ||||||||
| 442 | return Create(Context, QualifierLoc, TemplateKWLoc, D, | ||||||||
| 443 | RefersToEnclosingVariableOrCapture, | ||||||||
| 444 | DeclarationNameInfo(D->getDeclName(), NameLoc), | ||||||||
| 445 | T, VK, FoundD, TemplateArgs, NOUR); | ||||||||
| 446 | } | ||||||||
| 447 | |||||||||
| 448 | DeclRefExpr *DeclRefExpr::Create(const ASTContext &Context, | ||||||||
| 449 | NestedNameSpecifierLoc QualifierLoc, | ||||||||
| 450 | SourceLocation TemplateKWLoc, ValueDecl *D, | ||||||||
| 451 | bool RefersToEnclosingVariableOrCapture, | ||||||||
| 452 | const DeclarationNameInfo &NameInfo, | ||||||||
| 453 | QualType T, ExprValueKind VK, | ||||||||
| 454 | NamedDecl *FoundD, | ||||||||
| 455 | const TemplateArgumentListInfo *TemplateArgs, | ||||||||
| 456 | NonOdrUseReason NOUR) { | ||||||||
| 457 | // Filter out cases where the found Decl is the same as the value refenenced. | ||||||||
| 458 | if (D == FoundD) | ||||||||
| 459 | FoundD = nullptr; | ||||||||
| 460 | |||||||||
| 461 | bool HasTemplateKWAndArgsInfo = TemplateArgs || TemplateKWLoc.isValid(); | ||||||||
| 462 | std::size_t Size = | ||||||||
| 463 | totalSizeToAlloc<NestedNameSpecifierLoc, NamedDecl *, | ||||||||
| 464 | ASTTemplateKWAndArgsInfo, TemplateArgumentLoc>( | ||||||||
| 465 | QualifierLoc ? 1 : 0, FoundD ? 1 : 0, | ||||||||
| 466 | HasTemplateKWAndArgsInfo ? 1 : 0, | ||||||||
| 467 | TemplateArgs ? TemplateArgs->size() : 0); | ||||||||
| 468 | |||||||||
| 469 | void *Mem = Context.Allocate(Size, alignof(DeclRefExpr)); | ||||||||
| 470 | return new (Mem) DeclRefExpr(Context, QualifierLoc, TemplateKWLoc, D, | ||||||||
| 471 | RefersToEnclosingVariableOrCapture, NameInfo, | ||||||||
| 472 | FoundD, TemplateArgs, T, VK, NOUR); | ||||||||
| 473 | } | ||||||||
| 474 | |||||||||
| 475 | DeclRefExpr *DeclRefExpr::CreateEmpty(const ASTContext &Context, | ||||||||
| 476 | bool HasQualifier, | ||||||||
| 477 | bool HasFoundDecl, | ||||||||
| 478 | bool HasTemplateKWAndArgsInfo, | ||||||||
| 479 | unsigned NumTemplateArgs) { | ||||||||
| 480 | assert(NumTemplateArgs == 0 || HasTemplateKWAndArgsInfo)((NumTemplateArgs == 0 || HasTemplateKWAndArgsInfo) ? static_cast <void> (0) : __assert_fail ("NumTemplateArgs == 0 || HasTemplateKWAndArgsInfo" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 480, __PRETTY_FUNCTION__)); | ||||||||
| 481 | std::size_t Size = | ||||||||
| 482 | totalSizeToAlloc<NestedNameSpecifierLoc, NamedDecl *, | ||||||||
| 483 | ASTTemplateKWAndArgsInfo, TemplateArgumentLoc>( | ||||||||
| 484 | HasQualifier ? 1 : 0, HasFoundDecl ? 1 : 0, HasTemplateKWAndArgsInfo, | ||||||||
| 485 | NumTemplateArgs); | ||||||||
| 486 | void *Mem = Context.Allocate(Size, alignof(DeclRefExpr)); | ||||||||
| 487 | return new (Mem) DeclRefExpr(EmptyShell()); | ||||||||
| 488 | } | ||||||||
| 489 | |||||||||
| 490 | void DeclRefExpr::setDecl(ValueDecl *NewD) { | ||||||||
| 491 | D = NewD; | ||||||||
| 492 | setDependence(computeDependence(this, NewD->getASTContext())); | ||||||||
| 493 | } | ||||||||
| 494 | |||||||||
| 495 | SourceLocation DeclRefExpr::getBeginLoc() const { | ||||||||
| 496 | if (hasQualifier()) | ||||||||
| 497 | return getQualifierLoc().getBeginLoc(); | ||||||||
| 498 | return getNameInfo().getBeginLoc(); | ||||||||
| 499 | } | ||||||||
| 500 | SourceLocation DeclRefExpr::getEndLoc() const { | ||||||||
| 501 | if (hasExplicitTemplateArgs()) | ||||||||
| 502 | return getRAngleLoc(); | ||||||||
| 503 | return getNameInfo().getEndLoc(); | ||||||||
| 504 | } | ||||||||
| 505 | |||||||||
| 506 | PredefinedExpr::PredefinedExpr(SourceLocation L, QualType FNTy, IdentKind IK, | ||||||||
| 507 | StringLiteral *SL) | ||||||||
| 508 | : Expr(PredefinedExprClass, FNTy, VK_LValue, OK_Ordinary) { | ||||||||
| 509 | PredefinedExprBits.Kind = IK; | ||||||||
| 510 | assert((getIdentKind() == IK) &&(((getIdentKind() == IK) && "IdentKind do not fit in PredefinedExprBitfields!" ) ? static_cast<void> (0) : __assert_fail ("(getIdentKind() == IK) && \"IdentKind do not fit in PredefinedExprBitfields!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 511, __PRETTY_FUNCTION__)) | ||||||||
| 511 | "IdentKind do not fit in PredefinedExprBitfields!")(((getIdentKind() == IK) && "IdentKind do not fit in PredefinedExprBitfields!" ) ? static_cast<void> (0) : __assert_fail ("(getIdentKind() == IK) && \"IdentKind do not fit in PredefinedExprBitfields!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 511, __PRETTY_FUNCTION__)); | ||||||||
| 512 | bool HasFunctionName = SL != nullptr; | ||||||||
| 513 | PredefinedExprBits.HasFunctionName = HasFunctionName; | ||||||||
| 514 | PredefinedExprBits.Loc = L; | ||||||||
| 515 | if (HasFunctionName) | ||||||||
| 516 | setFunctionName(SL); | ||||||||
| 517 | setDependence(computeDependence(this)); | ||||||||
| 518 | } | ||||||||
| 519 | |||||||||
| 520 | PredefinedExpr::PredefinedExpr(EmptyShell Empty, bool HasFunctionName) | ||||||||
| 521 | : Expr(PredefinedExprClass, Empty) { | ||||||||
| 522 | PredefinedExprBits.HasFunctionName = HasFunctionName; | ||||||||
| 523 | } | ||||||||
| 524 | |||||||||
| 525 | PredefinedExpr *PredefinedExpr::Create(const ASTContext &Ctx, SourceLocation L, | ||||||||
| 526 | QualType FNTy, IdentKind IK, | ||||||||
| 527 | StringLiteral *SL) { | ||||||||
| 528 | bool HasFunctionName = SL != nullptr; | ||||||||
| 529 | void *Mem = Ctx.Allocate(totalSizeToAlloc<Stmt *>(HasFunctionName), | ||||||||
| 530 | alignof(PredefinedExpr)); | ||||||||
| 531 | return new (Mem) PredefinedExpr(L, FNTy, IK, SL); | ||||||||
| 532 | } | ||||||||
| 533 | |||||||||
| 534 | PredefinedExpr *PredefinedExpr::CreateEmpty(const ASTContext &Ctx, | ||||||||
| 535 | bool HasFunctionName) { | ||||||||
| 536 | void *Mem = Ctx.Allocate(totalSizeToAlloc<Stmt *>(HasFunctionName), | ||||||||
| 537 | alignof(PredefinedExpr)); | ||||||||
| 538 | return new (Mem) PredefinedExpr(EmptyShell(), HasFunctionName); | ||||||||
| 539 | } | ||||||||
| 540 | |||||||||
| 541 | StringRef PredefinedExpr::getIdentKindName(PredefinedExpr::IdentKind IK) { | ||||||||
| 542 | switch (IK) { | ||||||||
| 543 | case Func: | ||||||||
| 544 | return "__func__"; | ||||||||
| 545 | case Function: | ||||||||
| 546 | return "__FUNCTION__"; | ||||||||
| 547 | case FuncDName: | ||||||||
| 548 | return "__FUNCDNAME__"; | ||||||||
| 549 | case LFunction: | ||||||||
| 550 | return "L__FUNCTION__"; | ||||||||
| 551 | case PrettyFunction: | ||||||||
| 552 | return "__PRETTY_FUNCTION__"; | ||||||||
| 553 | case FuncSig: | ||||||||
| 554 | return "__FUNCSIG__"; | ||||||||
| 555 | case LFuncSig: | ||||||||
| 556 | return "L__FUNCSIG__"; | ||||||||
| 557 | case PrettyFunctionNoVirtual: | ||||||||
| 558 | break; | ||||||||
| 559 | } | ||||||||
| 560 | llvm_unreachable("Unknown ident kind for PredefinedExpr")::llvm::llvm_unreachable_internal("Unknown ident kind for PredefinedExpr" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 560); | ||||||||
| 561 | } | ||||||||
| 562 | |||||||||
| 563 | // FIXME: Maybe this should use DeclPrinter with a special "print predefined | ||||||||
| 564 | // expr" policy instead. | ||||||||
| 565 | std::string PredefinedExpr::ComputeName(IdentKind IK, const Decl *CurrentDecl) { | ||||||||
| 566 | ASTContext &Context = CurrentDecl->getASTContext(); | ||||||||
| 567 | |||||||||
| 568 | if (IK == PredefinedExpr::FuncDName) { | ||||||||
| |||||||||
| 569 | if (const NamedDecl *ND = dyn_cast<NamedDecl>(CurrentDecl)) { | ||||||||
| 570 | std::unique_ptr<MangleContext> MC; | ||||||||
| 571 | MC.reset(Context.createMangleContext()); | ||||||||
| 572 | |||||||||
| 573 | if (MC->shouldMangleDeclName(ND)) { | ||||||||
| 574 | SmallString<256> Buffer; | ||||||||
| 575 | llvm::raw_svector_ostream Out(Buffer); | ||||||||
| 576 | GlobalDecl GD; | ||||||||
| 577 | if (const CXXConstructorDecl *CD = dyn_cast<CXXConstructorDecl>(ND)) | ||||||||
| 578 | GD = GlobalDecl(CD, Ctor_Base); | ||||||||
| 579 | else if (const CXXDestructorDecl *DD = dyn_cast<CXXDestructorDecl>(ND)) | ||||||||
| 580 | GD = GlobalDecl(DD, Dtor_Base); | ||||||||
| 581 | else if (ND->hasAttr<CUDAGlobalAttr>()) | ||||||||
| 582 | GD = GlobalDecl(cast<FunctionDecl>(ND)); | ||||||||
| 583 | else | ||||||||
| 584 | GD = GlobalDecl(ND); | ||||||||
| 585 | MC->mangleName(GD, Out); | ||||||||
| 586 | |||||||||
| 587 | if (!Buffer.empty() && Buffer.front() == '\01') | ||||||||
| 588 | return std::string(Buffer.substr(1)); | ||||||||
| 589 | return std::string(Buffer.str()); | ||||||||
| 590 | } | ||||||||
| 591 | return std::string(ND->getIdentifier()->getName()); | ||||||||
| 592 | } | ||||||||
| 593 | return ""; | ||||||||
| 594 | } | ||||||||
| 595 | if (isa<BlockDecl>(CurrentDecl)) { | ||||||||
| 596 | // For blocks we only emit something if it is enclosed in a function | ||||||||
| 597 | // For top-level block we'd like to include the name of variable, but we | ||||||||
| 598 | // don't have it at this point. | ||||||||
| 599 | auto DC = CurrentDecl->getDeclContext(); | ||||||||
| 600 | if (DC->isFileContext()) | ||||||||
| 601 | return ""; | ||||||||
| 602 | |||||||||
| 603 | SmallString<256> Buffer; | ||||||||
| 604 | llvm::raw_svector_ostream Out(Buffer); | ||||||||
| 605 | if (auto *DCBlock = dyn_cast<BlockDecl>(DC)) | ||||||||
| 606 | // For nested blocks, propagate up to the parent. | ||||||||
| 607 | Out << ComputeName(IK, DCBlock); | ||||||||
| 608 | else if (auto *DCDecl = dyn_cast<Decl>(DC)) | ||||||||
| 609 | Out << ComputeName(IK, DCDecl) << "_block_invoke"; | ||||||||
| 610 | return std::string(Out.str()); | ||||||||
| 611 | } | ||||||||
| 612 | if (const FunctionDecl *FD
| ||||||||
| 613 | if (IK != PrettyFunction && IK != PrettyFunctionNoVirtual && | ||||||||
| 614 | IK != FuncSig && IK != LFuncSig) | ||||||||
| 615 | return FD->getNameAsString(); | ||||||||
| 616 | |||||||||
| 617 | SmallString<256> Name; | ||||||||
| 618 | llvm::raw_svector_ostream Out(Name); | ||||||||
| 619 | |||||||||
| 620 | if (const CXXMethodDecl *MD
| ||||||||
| 621 | if (MD->isVirtual() && IK != PrettyFunctionNoVirtual) | ||||||||
| 622 | Out << "virtual "; | ||||||||
| 623 | if (MD->isStatic()) | ||||||||
| 624 | Out << "static "; | ||||||||
| 625 | } | ||||||||
| 626 | |||||||||
| 627 | PrintingPolicy Policy(Context.getLangOpts()); | ||||||||
| 628 | std::string Proto; | ||||||||
| 629 | llvm::raw_string_ostream POut(Proto); | ||||||||
| 630 | |||||||||
| 631 | const FunctionDecl *Decl = FD; | ||||||||
| 632 | if (const FunctionDecl* Pattern = FD->getTemplateInstantiationPattern()) | ||||||||
| 633 | Decl = Pattern; | ||||||||
| 634 | const FunctionType *AFT = Decl->getType()->getAs<FunctionType>(); | ||||||||
| 635 | const FunctionProtoType *FT = nullptr; | ||||||||
| 636 | if (FD->hasWrittenPrototype()) | ||||||||
| 637 | FT = dyn_cast<FunctionProtoType>(AFT); | ||||||||
| 638 | |||||||||
| 639 | if (IK
| ||||||||
| 640 | switch (AFT->getCallConv()) { | ||||||||
| 641 | case CC_C: POut << "__cdecl "; break; | ||||||||
| 642 | case CC_X86StdCall: POut << "__stdcall "; break; | ||||||||
| 643 | case CC_X86FastCall: POut << "__fastcall "; break; | ||||||||
| 644 | case CC_X86ThisCall: POut << "__thiscall "; break; | ||||||||
| 645 | case CC_X86VectorCall: POut << "__vectorcall "; break; | ||||||||
| 646 | case CC_X86RegCall: POut << "__regcall "; break; | ||||||||
| 647 | // Only bother printing the conventions that MSVC knows about. | ||||||||
| 648 | default: break; | ||||||||
| 649 | } | ||||||||
| 650 | } | ||||||||
| 651 | |||||||||
| 652 | FD->printQualifiedName(POut, Policy); | ||||||||
| 653 | |||||||||
| 654 | POut << "("; | ||||||||
| 655 | if (FT
| ||||||||
| 656 | for (unsigned i = 0, e = Decl->getNumParams(); i != e; ++i) { | ||||||||
| 657 | if (i) POut << ", "; | ||||||||
| 658 | POut << Decl->getParamDecl(i)->getType().stream(Policy); | ||||||||
| 659 | } | ||||||||
| 660 | |||||||||
| 661 | if (FT->isVariadic()) { | ||||||||
| 662 | if (FD->getNumParams()) POut << ", "; | ||||||||
| 663 | POut << "..."; | ||||||||
| 664 | } else if ((IK == FuncSig || IK == LFuncSig || | ||||||||
| 665 | !Context.getLangOpts().CPlusPlus) && | ||||||||
| 666 | !Decl->getNumParams()) { | ||||||||
| 667 | POut << "void"; | ||||||||
| 668 | } | ||||||||
| 669 | } | ||||||||
| 670 | POut << ")"; | ||||||||
| 671 | |||||||||
| 672 | if (const CXXMethodDecl *MD
| ||||||||
| 673 | assert(FT && "We must have a written prototype in this case.")((FT && "We must have a written prototype in this case." ) ? static_cast<void> (0) : __assert_fail ("FT && \"We must have a written prototype in this case.\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 673, __PRETTY_FUNCTION__)); | ||||||||
| 674 | if (FT->isConst()) | ||||||||
| 675 | POut << " const"; | ||||||||
| 676 | if (FT->isVolatile()) | ||||||||
| 677 | POut << " volatile"; | ||||||||
| 678 | RefQualifierKind Ref = MD->getRefQualifier(); | ||||||||
| 679 | if (Ref == RQ_LValue) | ||||||||
| 680 | POut << " &"; | ||||||||
| 681 | else if (Ref == RQ_RValue) | ||||||||
| 682 | POut << " &&"; | ||||||||
| 683 | } | ||||||||
| 684 | |||||||||
| 685 | typedef SmallVector<const ClassTemplateSpecializationDecl *, 8> SpecsTy; | ||||||||
| 686 | SpecsTy Specs; | ||||||||
| 687 | const DeclContext *Ctx = FD->getDeclContext(); | ||||||||
| 688 | while (Ctx && isa<NamedDecl>(Ctx)) { | ||||||||
| 689 | const ClassTemplateSpecializationDecl *Spec | ||||||||
| 690 | = dyn_cast<ClassTemplateSpecializationDecl>(Ctx); | ||||||||
| 691 | if (Spec && !Spec->isExplicitSpecialization()) | ||||||||
| 692 | Specs.push_back(Spec); | ||||||||
| 693 | Ctx = Ctx->getParent(); | ||||||||
| 694 | } | ||||||||
| 695 | |||||||||
| 696 | std::string TemplateParams; | ||||||||
| 697 | llvm::raw_string_ostream TOut(TemplateParams); | ||||||||
| 698 | for (SpecsTy::reverse_iterator I = Specs.rbegin(), E = Specs.rend(); | ||||||||
| 699 | I != E; ++I) { | ||||||||
| 700 | const TemplateParameterList *Params | ||||||||
| 701 | = (*I)->getSpecializedTemplate()->getTemplateParameters(); | ||||||||
| 702 | const TemplateArgumentList &Args = (*I)->getTemplateArgs(); | ||||||||
| 703 | assert(Params->size() == Args.size())((Params->size() == Args.size()) ? static_cast<void> (0) : __assert_fail ("Params->size() == Args.size()", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 703, __PRETTY_FUNCTION__)); | ||||||||
| 704 | for (unsigned i = 0, numParams = Params->size(); i != numParams; ++i) { | ||||||||
| 705 | StringRef Param = Params->getParam(i)->getName(); | ||||||||
| 706 | if (Param.empty()) continue; | ||||||||
| 707 | TOut << Param << " = "; | ||||||||
| 708 | Args.get(i).print(Policy, TOut); | ||||||||
| 709 | TOut << ", "; | ||||||||
| 710 | } | ||||||||
| 711 | } | ||||||||
| 712 | |||||||||
| 713 | FunctionTemplateSpecializationInfo *FSI | ||||||||
| 714 | = FD->getTemplateSpecializationInfo(); | ||||||||
| 715 | if (FSI && !FSI->isExplicitSpecialization()) { | ||||||||
| 716 | const TemplateParameterList* Params | ||||||||
| 717 | = FSI->getTemplate()->getTemplateParameters(); | ||||||||
| 718 | const TemplateArgumentList* Args = FSI->TemplateArguments; | ||||||||
| 719 | assert(Params->size() == Args->size())((Params->size() == Args->size()) ? static_cast<void > (0) : __assert_fail ("Params->size() == Args->size()" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 719, __PRETTY_FUNCTION__)); | ||||||||
| 720 | for (unsigned i = 0, e = Params->size(); i != e; ++i) { | ||||||||
| 721 | StringRef Param = Params->getParam(i)->getName(); | ||||||||
| 722 | if (Param.empty()) continue; | ||||||||
| 723 | TOut << Param << " = "; | ||||||||
| 724 | Args->get(i).print(Policy, TOut); | ||||||||
| 725 | TOut << ", "; | ||||||||
| 726 | } | ||||||||
| 727 | } | ||||||||
| 728 | |||||||||
| 729 | TOut.flush(); | ||||||||
| 730 | if (!TemplateParams.empty()) { | ||||||||
| 731 | // remove the trailing comma and space | ||||||||
| 732 | TemplateParams.resize(TemplateParams.size() - 2); | ||||||||
| 733 | POut << " [" << TemplateParams << "]"; | ||||||||
| 734 | } | ||||||||
| 735 | |||||||||
| 736 | POut.flush(); | ||||||||
| 737 | |||||||||
| 738 | // Print "auto" for all deduced return types. This includes C++1y return | ||||||||
| 739 | // type deduction and lambdas. For trailing return types resolve the | ||||||||
| 740 | // decltype expression. Otherwise print the real type when this is | ||||||||
| 741 | // not a constructor or destructor. | ||||||||
| 742 | if (isa<CXXMethodDecl>(FD) && | ||||||||
| 743 | cast<CXXMethodDecl>(FD)->getParent()->isLambda()) | ||||||||
| 744 | Proto = "auto " + Proto; | ||||||||
| 745 | else if (FT
| ||||||||
| 746 | FT->getReturnType() | ||||||||
| 747 | ->getAs<DecltypeType>() | ||||||||
| 748 | ->getUnderlyingType() | ||||||||
| 749 | .getAsStringInternal(Proto, Policy); | ||||||||
| 750 | else if (!isa<CXXConstructorDecl>(FD) && !isa<CXXDestructorDecl>(FD)) | ||||||||
| 751 | AFT->getReturnType().getAsStringInternal(Proto, Policy); | ||||||||
| |||||||||
| 752 | |||||||||
| 753 | Out << Proto; | ||||||||
| 754 | |||||||||
| 755 | return std::string(Name); | ||||||||
| 756 | } | ||||||||
| 757 | if (const CapturedDecl *CD = dyn_cast<CapturedDecl>(CurrentDecl)) { | ||||||||
| 758 | for (const DeclContext *DC = CD->getParent(); DC; DC = DC->getParent()) | ||||||||
| 759 | // Skip to its enclosing function or method, but not its enclosing | ||||||||
| 760 | // CapturedDecl. | ||||||||
| 761 | if (DC->isFunctionOrMethod() && (DC->getDeclKind() != Decl::Captured)) { | ||||||||
| 762 | const Decl *D = Decl::castFromDeclContext(DC); | ||||||||
| 763 | return ComputeName(IK, D); | ||||||||
| 764 | } | ||||||||
| 765 | llvm_unreachable("CapturedDecl not inside a function or method")::llvm::llvm_unreachable_internal("CapturedDecl not inside a function or method" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 765); | ||||||||
| 766 | } | ||||||||
| 767 | if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(CurrentDecl)) { | ||||||||
| 768 | SmallString<256> Name; | ||||||||
| 769 | llvm::raw_svector_ostream Out(Name); | ||||||||
| 770 | Out << (MD->isInstanceMethod() ? '-' : '+'); | ||||||||
| 771 | Out << '['; | ||||||||
| 772 | |||||||||
| 773 | // For incorrect code, there might not be an ObjCInterfaceDecl. Do | ||||||||
| 774 | // a null check to avoid a crash. | ||||||||
| 775 | if (const ObjCInterfaceDecl *ID = MD->getClassInterface()) | ||||||||
| 776 | Out << *ID; | ||||||||
| 777 | |||||||||
| 778 | if (const ObjCCategoryImplDecl *CID = | ||||||||
| 779 | dyn_cast<ObjCCategoryImplDecl>(MD->getDeclContext())) | ||||||||
| 780 | Out << '(' << *CID << ')'; | ||||||||
| 781 | |||||||||
| 782 | Out << ' '; | ||||||||
| 783 | MD->getSelector().print(Out); | ||||||||
| 784 | Out << ']'; | ||||||||
| 785 | |||||||||
| 786 | return std::string(Name); | ||||||||
| 787 | } | ||||||||
| 788 | if (isa<TranslationUnitDecl>(CurrentDecl) && IK == PrettyFunction) { | ||||||||
| 789 | // __PRETTY_FUNCTION__ -> "top level", the others produce an empty string. | ||||||||
| 790 | return "top level"; | ||||||||
| 791 | } | ||||||||
| 792 | return ""; | ||||||||
| 793 | } | ||||||||
| 794 | |||||||||
| 795 | void APNumericStorage::setIntValue(const ASTContext &C, | ||||||||
| 796 | const llvm::APInt &Val) { | ||||||||
| 797 | if (hasAllocation()) | ||||||||
| 798 | C.Deallocate(pVal); | ||||||||
| 799 | |||||||||
| 800 | BitWidth = Val.getBitWidth(); | ||||||||
| 801 | unsigned NumWords = Val.getNumWords(); | ||||||||
| 802 | const uint64_t* Words = Val.getRawData(); | ||||||||
| 803 | if (NumWords > 1) { | ||||||||
| 804 | pVal = new (C) uint64_t[NumWords]; | ||||||||
| 805 | std::copy(Words, Words + NumWords, pVal); | ||||||||
| 806 | } else if (NumWords == 1) | ||||||||
| 807 | VAL = Words[0]; | ||||||||
| 808 | else | ||||||||
| 809 | VAL = 0; | ||||||||
| 810 | } | ||||||||
| 811 | |||||||||
| 812 | IntegerLiteral::IntegerLiteral(const ASTContext &C, const llvm::APInt &V, | ||||||||
| 813 | QualType type, SourceLocation l) | ||||||||
| 814 | : Expr(IntegerLiteralClass, type, VK_RValue, OK_Ordinary), Loc(l) { | ||||||||
| 815 | assert(type->isIntegerType() && "Illegal type in IntegerLiteral")((type->isIntegerType() && "Illegal type in IntegerLiteral" ) ? static_cast<void> (0) : __assert_fail ("type->isIntegerType() && \"Illegal type in IntegerLiteral\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 815, __PRETTY_FUNCTION__)); | ||||||||
| 816 | assert(V.getBitWidth() == C.getIntWidth(type) &&((V.getBitWidth() == C.getIntWidth(type) && "Integer type is not the correct size for constant." ) ? static_cast<void> (0) : __assert_fail ("V.getBitWidth() == C.getIntWidth(type) && \"Integer type is not the correct size for constant.\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 817, __PRETTY_FUNCTION__)) | ||||||||
| 817 | "Integer type is not the correct size for constant.")((V.getBitWidth() == C.getIntWidth(type) && "Integer type is not the correct size for constant." ) ? static_cast<void> (0) : __assert_fail ("V.getBitWidth() == C.getIntWidth(type) && \"Integer type is not the correct size for constant.\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 817, __PRETTY_FUNCTION__)); | ||||||||
| 818 | setValue(C, V); | ||||||||
| 819 | setDependence(ExprDependence::None); | ||||||||
| 820 | } | ||||||||
| 821 | |||||||||
| 822 | IntegerLiteral * | ||||||||
| 823 | IntegerLiteral::Create(const ASTContext &C, const llvm::APInt &V, | ||||||||
| 824 | QualType type, SourceLocation l) { | ||||||||
| 825 | return new (C) IntegerLiteral(C, V, type, l); | ||||||||
| 826 | } | ||||||||
| 827 | |||||||||
| 828 | IntegerLiteral * | ||||||||
| 829 | IntegerLiteral::Create(const ASTContext &C, EmptyShell Empty) { | ||||||||
| 830 | return new (C) IntegerLiteral(Empty); | ||||||||
| 831 | } | ||||||||
| 832 | |||||||||
| 833 | FixedPointLiteral::FixedPointLiteral(const ASTContext &C, const llvm::APInt &V, | ||||||||
| 834 | QualType type, SourceLocation l, | ||||||||
| 835 | unsigned Scale) | ||||||||
| 836 | : Expr(FixedPointLiteralClass, type, VK_RValue, OK_Ordinary), Loc(l), | ||||||||
| 837 | Scale(Scale) { | ||||||||
| 838 | assert(type->isFixedPointType() && "Illegal type in FixedPointLiteral")((type->isFixedPointType() && "Illegal type in FixedPointLiteral" ) ? static_cast<void> (0) : __assert_fail ("type->isFixedPointType() && \"Illegal type in FixedPointLiteral\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 838, __PRETTY_FUNCTION__)); | ||||||||
| 839 | assert(V.getBitWidth() == C.getTypeInfo(type).Width &&((V.getBitWidth() == C.getTypeInfo(type).Width && "Fixed point type is not the correct size for constant." ) ? static_cast<void> (0) : __assert_fail ("V.getBitWidth() == C.getTypeInfo(type).Width && \"Fixed point type is not the correct size for constant.\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 840, __PRETTY_FUNCTION__)) | ||||||||
| 840 | "Fixed point type is not the correct size for constant.")((V.getBitWidth() == C.getTypeInfo(type).Width && "Fixed point type is not the correct size for constant." ) ? static_cast<void> (0) : __assert_fail ("V.getBitWidth() == C.getTypeInfo(type).Width && \"Fixed point type is not the correct size for constant.\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 840, __PRETTY_FUNCTION__)); | ||||||||
| 841 | setValue(C, V); | ||||||||
| 842 | setDependence(ExprDependence::None); | ||||||||
| 843 | } | ||||||||
| 844 | |||||||||
| 845 | FixedPointLiteral *FixedPointLiteral::CreateFromRawInt(const ASTContext &C, | ||||||||
| 846 | const llvm::APInt &V, | ||||||||
| 847 | QualType type, | ||||||||
| 848 | SourceLocation l, | ||||||||
| 849 | unsigned Scale) { | ||||||||
| 850 | return new (C) FixedPointLiteral(C, V, type, l, Scale); | ||||||||
| 851 | } | ||||||||
| 852 | |||||||||
| 853 | FixedPointLiteral *FixedPointLiteral::Create(const ASTContext &C, | ||||||||
| 854 | EmptyShell Empty) { | ||||||||
| 855 | return new (C) FixedPointLiteral(Empty); | ||||||||
| 856 | } | ||||||||
| 857 | |||||||||
| 858 | std::string FixedPointLiteral::getValueAsString(unsigned Radix) const { | ||||||||
| 859 | // Currently the longest decimal number that can be printed is the max for an | ||||||||
| 860 | // unsigned long _Accum: 4294967295.99999999976716935634613037109375 | ||||||||
| 861 | // which is 43 characters. | ||||||||
| 862 | SmallString<64> S; | ||||||||
| 863 | FixedPointValueToString( | ||||||||
| 864 | S, llvm::APSInt::getUnsigned(getValue().getZExtValue()), Scale); | ||||||||
| 865 | return std::string(S.str()); | ||||||||
| 866 | } | ||||||||
| 867 | |||||||||
| 868 | FloatingLiteral::FloatingLiteral(const ASTContext &C, const llvm::APFloat &V, | ||||||||
| 869 | bool isexact, QualType Type, SourceLocation L) | ||||||||
| 870 | : Expr(FloatingLiteralClass, Type, VK_RValue, OK_Ordinary), Loc(L) { | ||||||||
| 871 | setSemantics(V.getSemantics()); | ||||||||
| 872 | FloatingLiteralBits.IsExact = isexact; | ||||||||
| 873 | setValue(C, V); | ||||||||
| 874 | setDependence(ExprDependence::None); | ||||||||
| 875 | } | ||||||||
| 876 | |||||||||
| 877 | FloatingLiteral::FloatingLiteral(const ASTContext &C, EmptyShell Empty) | ||||||||
| 878 | : Expr(FloatingLiteralClass, Empty) { | ||||||||
| 879 | setRawSemantics(llvm::APFloatBase::S_IEEEhalf); | ||||||||
| 880 | FloatingLiteralBits.IsExact = false; | ||||||||
| 881 | } | ||||||||
| 882 | |||||||||
| 883 | FloatingLiteral * | ||||||||
| 884 | FloatingLiteral::Create(const ASTContext &C, const llvm::APFloat &V, | ||||||||
| 885 | bool isexact, QualType Type, SourceLocation L) { | ||||||||
| 886 | return new (C) FloatingLiteral(C, V, isexact, Type, L); | ||||||||
| 887 | } | ||||||||
| 888 | |||||||||
| 889 | FloatingLiteral * | ||||||||
| 890 | FloatingLiteral::Create(const ASTContext &C, EmptyShell Empty) { | ||||||||
| 891 | return new (C) FloatingLiteral(C, Empty); | ||||||||
| 892 | } | ||||||||
| 893 | |||||||||
| 894 | /// getValueAsApproximateDouble - This returns the value as an inaccurate | ||||||||
| 895 | /// double. Note that this may cause loss of precision, but is useful for | ||||||||
| 896 | /// debugging dumps, etc. | ||||||||
| 897 | double FloatingLiteral::getValueAsApproximateDouble() const { | ||||||||
| 898 | llvm::APFloat V = getValue(); | ||||||||
| 899 | bool ignored; | ||||||||
| 900 | V.convert(llvm::APFloat::IEEEdouble(), llvm::APFloat::rmNearestTiesToEven, | ||||||||
| 901 | &ignored); | ||||||||
| 902 | return V.convertToDouble(); | ||||||||
| 903 | } | ||||||||
| 904 | |||||||||
| 905 | unsigned StringLiteral::mapCharByteWidth(TargetInfo const &Target, | ||||||||
| 906 | StringKind SK) { | ||||||||
| 907 | unsigned CharByteWidth = 0; | ||||||||
| 908 | switch (SK) { | ||||||||
| 909 | case Ascii: | ||||||||
| 910 | case UTF8: | ||||||||
| 911 | CharByteWidth = Target.getCharWidth(); | ||||||||
| 912 | break; | ||||||||
| 913 | case Wide: | ||||||||
| 914 | CharByteWidth = Target.getWCharWidth(); | ||||||||
| 915 | break; | ||||||||
| 916 | case UTF16: | ||||||||
| 917 | CharByteWidth = Target.getChar16Width(); | ||||||||
| 918 | break; | ||||||||
| 919 | case UTF32: | ||||||||
| 920 | CharByteWidth = Target.getChar32Width(); | ||||||||
| 921 | break; | ||||||||
| 922 | } | ||||||||
| 923 | assert((CharByteWidth & 7) == 0 && "Assumes character size is byte multiple")(((CharByteWidth & 7) == 0 && "Assumes character size is byte multiple" ) ? static_cast<void> (0) : __assert_fail ("(CharByteWidth & 7) == 0 && \"Assumes character size is byte multiple\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 923, __PRETTY_FUNCTION__)); | ||||||||
| 924 | CharByteWidth /= 8; | ||||||||
| 925 | assert((CharByteWidth == 1 || CharByteWidth == 2 || CharByteWidth == 4) &&(((CharByteWidth == 1 || CharByteWidth == 2 || CharByteWidth == 4) && "The only supported character byte widths are 1,2 and 4!" ) ? static_cast<void> (0) : __assert_fail ("(CharByteWidth == 1 || CharByteWidth == 2 || CharByteWidth == 4) && \"The only supported character byte widths are 1,2 and 4!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 926, __PRETTY_FUNCTION__)) | ||||||||
| 926 | "The only supported character byte widths are 1,2 and 4!")(((CharByteWidth == 1 || CharByteWidth == 2 || CharByteWidth == 4) && "The only supported character byte widths are 1,2 and 4!" ) ? static_cast<void> (0) : __assert_fail ("(CharByteWidth == 1 || CharByteWidth == 2 || CharByteWidth == 4) && \"The only supported character byte widths are 1,2 and 4!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 926, __PRETTY_FUNCTION__)); | ||||||||
| 927 | return CharByteWidth; | ||||||||
| 928 | } | ||||||||
| 929 | |||||||||
| 930 | StringLiteral::StringLiteral(const ASTContext &Ctx, StringRef Str, | ||||||||
| 931 | StringKind Kind, bool Pascal, QualType Ty, | ||||||||
| 932 | const SourceLocation *Loc, | ||||||||
| 933 | unsigned NumConcatenated) | ||||||||
| 934 | : Expr(StringLiteralClass, Ty, VK_LValue, OK_Ordinary) { | ||||||||
| 935 | assert(Ctx.getAsConstantArrayType(Ty) &&((Ctx.getAsConstantArrayType(Ty) && "StringLiteral must be of constant array type!" ) ? static_cast<void> (0) : __assert_fail ("Ctx.getAsConstantArrayType(Ty) && \"StringLiteral must be of constant array type!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 936, __PRETTY_FUNCTION__)) | ||||||||
| 936 | "StringLiteral must be of constant array type!")((Ctx.getAsConstantArrayType(Ty) && "StringLiteral must be of constant array type!" ) ? static_cast<void> (0) : __assert_fail ("Ctx.getAsConstantArrayType(Ty) && \"StringLiteral must be of constant array type!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 936, __PRETTY_FUNCTION__)); | ||||||||
| 937 | unsigned CharByteWidth = mapCharByteWidth(Ctx.getTargetInfo(), Kind); | ||||||||
| 938 | unsigned ByteLength = Str.size(); | ||||||||
| 939 | assert((ByteLength % CharByteWidth == 0) &&(((ByteLength % CharByteWidth == 0) && "The size of the data must be a multiple of CharByteWidth!" ) ? static_cast<void> (0) : __assert_fail ("(ByteLength % CharByteWidth == 0) && \"The size of the data must be a multiple of CharByteWidth!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 940, __PRETTY_FUNCTION__)) | ||||||||
| 940 | "The size of the data must be a multiple of CharByteWidth!")(((ByteLength % CharByteWidth == 0) && "The size of the data must be a multiple of CharByteWidth!" ) ? static_cast<void> (0) : __assert_fail ("(ByteLength % CharByteWidth == 0) && \"The size of the data must be a multiple of CharByteWidth!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 940, __PRETTY_FUNCTION__)); | ||||||||
| 941 | |||||||||
| 942 | // Avoid the expensive division. The compiler should be able to figure it | ||||||||
| 943 | // out by itself. However as of clang 7, even with the appropriate | ||||||||
| 944 | // llvm_unreachable added just here, it is not able to do so. | ||||||||
| 945 | unsigned Length; | ||||||||
| 946 | switch (CharByteWidth) { | ||||||||
| 947 | case 1: | ||||||||
| 948 | Length = ByteLength; | ||||||||
| 949 | break; | ||||||||
| 950 | case 2: | ||||||||
| 951 | Length = ByteLength / 2; | ||||||||
| 952 | break; | ||||||||
| 953 | case 4: | ||||||||
| 954 | Length = ByteLength / 4; | ||||||||
| 955 | break; | ||||||||
| 956 | default: | ||||||||
| 957 | llvm_unreachable("Unsupported character width!")::llvm::llvm_unreachable_internal("Unsupported character width!" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 957); | ||||||||
| 958 | } | ||||||||
| 959 | |||||||||
| 960 | StringLiteralBits.Kind = Kind; | ||||||||
| 961 | StringLiteralBits.CharByteWidth = CharByteWidth; | ||||||||
| 962 | StringLiteralBits.IsPascal = Pascal; | ||||||||
| 963 | StringLiteralBits.NumConcatenated = NumConcatenated; | ||||||||
| 964 | *getTrailingObjects<unsigned>() = Length; | ||||||||
| 965 | |||||||||
| 966 | // Initialize the trailing array of SourceLocation. | ||||||||
| 967 | // This is safe since SourceLocation is POD-like. | ||||||||
| 968 | std::memcpy(getTrailingObjects<SourceLocation>(), Loc, | ||||||||
| 969 | NumConcatenated * sizeof(SourceLocation)); | ||||||||
| 970 | |||||||||
| 971 | // Initialize the trailing array of char holding the string data. | ||||||||
| 972 | std::memcpy(getTrailingObjects<char>(), Str.data(), ByteLength); | ||||||||
| 973 | |||||||||
| 974 | setDependence(ExprDependence::None); | ||||||||
| 975 | } | ||||||||
| 976 | |||||||||
| 977 | StringLiteral::StringLiteral(EmptyShell Empty, unsigned NumConcatenated, | ||||||||
| 978 | unsigned Length, unsigned CharByteWidth) | ||||||||
| 979 | : Expr(StringLiteralClass, Empty) { | ||||||||
| 980 | StringLiteralBits.CharByteWidth = CharByteWidth; | ||||||||
| 981 | StringLiteralBits.NumConcatenated = NumConcatenated; | ||||||||
| 982 | *getTrailingObjects<unsigned>() = Length; | ||||||||
| 983 | } | ||||||||
| 984 | |||||||||
| 985 | StringLiteral *StringLiteral::Create(const ASTContext &Ctx, StringRef Str, | ||||||||
| 986 | StringKind Kind, bool Pascal, QualType Ty, | ||||||||
| 987 | const SourceLocation *Loc, | ||||||||
| 988 | unsigned NumConcatenated) { | ||||||||
| 989 | void *Mem = Ctx.Allocate(totalSizeToAlloc<unsigned, SourceLocation, char>( | ||||||||
| 990 | 1, NumConcatenated, Str.size()), | ||||||||
| 991 | alignof(StringLiteral)); | ||||||||
| 992 | return new (Mem) | ||||||||
| 993 | StringLiteral(Ctx, Str, Kind, Pascal, Ty, Loc, NumConcatenated); | ||||||||
| 994 | } | ||||||||
| 995 | |||||||||
| 996 | StringLiteral *StringLiteral::CreateEmpty(const ASTContext &Ctx, | ||||||||
| 997 | unsigned NumConcatenated, | ||||||||
| 998 | unsigned Length, | ||||||||
| 999 | unsigned CharByteWidth) { | ||||||||
| 1000 | void *Mem = Ctx.Allocate(totalSizeToAlloc<unsigned, SourceLocation, char>( | ||||||||
| 1001 | 1, NumConcatenated, Length * CharByteWidth), | ||||||||
| 1002 | alignof(StringLiteral)); | ||||||||
| 1003 | return new (Mem) | ||||||||
| 1004 | StringLiteral(EmptyShell(), NumConcatenated, Length, CharByteWidth); | ||||||||
| 1005 | } | ||||||||
| 1006 | |||||||||
| 1007 | void StringLiteral::outputString(raw_ostream &OS) const { | ||||||||
| 1008 | switch (getKind()) { | ||||||||
| 1009 | case Ascii: break; // no prefix. | ||||||||
| 1010 | case Wide: OS << 'L'; break; | ||||||||
| 1011 | case UTF8: OS << "u8"; break; | ||||||||
| 1012 | case UTF16: OS << 'u'; break; | ||||||||
| 1013 | case UTF32: OS << 'U'; break; | ||||||||
| 1014 | } | ||||||||
| 1015 | OS << '"'; | ||||||||
| 1016 | static const char Hex[] = "0123456789ABCDEF"; | ||||||||
| 1017 | |||||||||
| 1018 | unsigned LastSlashX = getLength(); | ||||||||
| 1019 | for (unsigned I = 0, N = getLength(); I != N; ++I) { | ||||||||
| 1020 | switch (uint32_t Char = getCodeUnit(I)) { | ||||||||
| 1021 | default: | ||||||||
| 1022 | // FIXME: Convert UTF-8 back to codepoints before rendering. | ||||||||
| 1023 | |||||||||
| 1024 | // Convert UTF-16 surrogate pairs back to codepoints before rendering. | ||||||||
| 1025 | // Leave invalid surrogates alone; we'll use \x for those. | ||||||||
| 1026 | if (getKind() == UTF16 && I != N - 1 && Char >= 0xd800 && | ||||||||
| 1027 | Char <= 0xdbff) { | ||||||||
| 1028 | uint32_t Trail = getCodeUnit(I + 1); | ||||||||
| 1029 | if (Trail >= 0xdc00 && Trail <= 0xdfff) { | ||||||||
| 1030 | Char = 0x10000 + ((Char - 0xd800) << 10) + (Trail - 0xdc00); | ||||||||
| 1031 | ++I; | ||||||||
| 1032 | } | ||||||||
| 1033 | } | ||||||||
| 1034 | |||||||||
| 1035 | if (Char > 0xff) { | ||||||||
| 1036 | // If this is a wide string, output characters over 0xff using \x | ||||||||
| 1037 | // escapes. Otherwise, this is a UTF-16 or UTF-32 string, and Char is a | ||||||||
| 1038 | // codepoint: use \x escapes for invalid codepoints. | ||||||||
| 1039 | if (getKind() == Wide || | ||||||||
| 1040 | (Char >= 0xd800 && Char <= 0xdfff) || Char >= 0x110000) { | ||||||||
| 1041 | // FIXME: Is this the best way to print wchar_t? | ||||||||
| 1042 | OS << "\\x"; | ||||||||
| 1043 | int Shift = 28; | ||||||||
| 1044 | while ((Char >> Shift) == 0) | ||||||||
| 1045 | Shift -= 4; | ||||||||
| 1046 | for (/**/; Shift >= 0; Shift -= 4) | ||||||||
| 1047 | OS << Hex[(Char >> Shift) & 15]; | ||||||||
| 1048 | LastSlashX = I; | ||||||||
| 1049 | break; | ||||||||
| 1050 | } | ||||||||
| 1051 | |||||||||
| 1052 | if (Char > 0xffff) | ||||||||
| 1053 | OS << "\\U00" | ||||||||
| 1054 | << Hex[(Char >> 20) & 15] | ||||||||
| 1055 | << Hex[(Char >> 16) & 15]; | ||||||||
| 1056 | else | ||||||||
| 1057 | OS << "\\u"; | ||||||||
| 1058 | OS << Hex[(Char >> 12) & 15] | ||||||||
| 1059 | << Hex[(Char >> 8) & 15] | ||||||||
| 1060 | << Hex[(Char >> 4) & 15] | ||||||||
| 1061 | << Hex[(Char >> 0) & 15]; | ||||||||
| 1062 | break; | ||||||||
| 1063 | } | ||||||||
| 1064 | |||||||||
| 1065 | // If we used \x... for the previous character, and this character is a | ||||||||
| 1066 | // hexadecimal digit, prevent it being slurped as part of the \x. | ||||||||
| 1067 | if (LastSlashX + 1 == I) { | ||||||||
| 1068 | switch (Char) { | ||||||||
| 1069 | case '0': case '1': case '2': case '3': case '4': | ||||||||
| 1070 | case '5': case '6': case '7': case '8': case '9': | ||||||||
| 1071 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': | ||||||||
| 1072 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | ||||||||
| 1073 | OS << "\"\""; | ||||||||
| 1074 | } | ||||||||
| 1075 | } | ||||||||
| 1076 | |||||||||
| 1077 | assert(Char <= 0xff &&((Char <= 0xff && "Characters above 0xff should already have been handled." ) ? static_cast<void> (0) : __assert_fail ("Char <= 0xff && \"Characters above 0xff should already have been handled.\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1078, __PRETTY_FUNCTION__)) | ||||||||
| 1078 | "Characters above 0xff should already have been handled.")((Char <= 0xff && "Characters above 0xff should already have been handled." ) ? static_cast<void> (0) : __assert_fail ("Char <= 0xff && \"Characters above 0xff should already have been handled.\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1078, __PRETTY_FUNCTION__)); | ||||||||
| 1079 | |||||||||
| 1080 | if (isPrintable(Char)) | ||||||||
| 1081 | OS << (char)Char; | ||||||||
| 1082 | else // Output anything hard as an octal escape. | ||||||||
| 1083 | OS << '\\' | ||||||||
| 1084 | << (char)('0' + ((Char >> 6) & 7)) | ||||||||
| 1085 | << (char)('0' + ((Char >> 3) & 7)) | ||||||||
| 1086 | << (char)('0' + ((Char >> 0) & 7)); | ||||||||
| 1087 | break; | ||||||||
| 1088 | // Handle some common non-printable cases to make dumps prettier. | ||||||||
| 1089 | case '\\': OS << "\\\\"; break; | ||||||||
| 1090 | case '"': OS << "\\\""; break; | ||||||||
| 1091 | case '\a': OS << "\\a"; break; | ||||||||
| 1092 | case '\b': OS << "\\b"; break; | ||||||||
| 1093 | case '\f': OS << "\\f"; break; | ||||||||
| 1094 | case '\n': OS << "\\n"; break; | ||||||||
| 1095 | case '\r': OS << "\\r"; break; | ||||||||
| 1096 | case '\t': OS << "\\t"; break; | ||||||||
| 1097 | case '\v': OS << "\\v"; break; | ||||||||
| 1098 | } | ||||||||
| 1099 | } | ||||||||
| 1100 | OS << '"'; | ||||||||
| 1101 | } | ||||||||
| 1102 | |||||||||
| 1103 | /// getLocationOfByte - Return a source location that points to the specified | ||||||||
| 1104 | /// byte of this string literal. | ||||||||
| 1105 | /// | ||||||||
| 1106 | /// Strings are amazingly complex. They can be formed from multiple tokens and | ||||||||
| 1107 | /// can have escape sequences in them in addition to the usual trigraph and | ||||||||
| 1108 | /// escaped newline business. This routine handles this complexity. | ||||||||
| 1109 | /// | ||||||||
| 1110 | /// The *StartToken sets the first token to be searched in this function and | ||||||||
| 1111 | /// the *StartTokenByteOffset is the byte offset of the first token. Before | ||||||||
| 1112 | /// returning, it updates the *StartToken to the TokNo of the token being found | ||||||||
| 1113 | /// and sets *StartTokenByteOffset to the byte offset of the token in the | ||||||||
| 1114 | /// string. | ||||||||
| 1115 | /// Using these two parameters can reduce the time complexity from O(n^2) to | ||||||||
| 1116 | /// O(n) if one wants to get the location of byte for all the tokens in a | ||||||||
| 1117 | /// string. | ||||||||
| 1118 | /// | ||||||||
| 1119 | SourceLocation | ||||||||
| 1120 | StringLiteral::getLocationOfByte(unsigned ByteNo, const SourceManager &SM, | ||||||||
| 1121 | const LangOptions &Features, | ||||||||
| 1122 | const TargetInfo &Target, unsigned *StartToken, | ||||||||
| 1123 | unsigned *StartTokenByteOffset) const { | ||||||||
| 1124 | assert((getKind() == StringLiteral::Ascii ||(((getKind() == StringLiteral::Ascii || getKind() == StringLiteral ::UTF8) && "Only narrow string literals are currently supported" ) ? static_cast<void> (0) : __assert_fail ("(getKind() == StringLiteral::Ascii || getKind() == StringLiteral::UTF8) && \"Only narrow string literals are currently supported\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1126, __PRETTY_FUNCTION__)) | ||||||||
| 1125 | getKind() == StringLiteral::UTF8) &&(((getKind() == StringLiteral::Ascii || getKind() == StringLiteral ::UTF8) && "Only narrow string literals are currently supported" ) ? static_cast<void> (0) : __assert_fail ("(getKind() == StringLiteral::Ascii || getKind() == StringLiteral::UTF8) && \"Only narrow string literals are currently supported\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1126, __PRETTY_FUNCTION__)) | ||||||||
| 1126 | "Only narrow string literals are currently supported")(((getKind() == StringLiteral::Ascii || getKind() == StringLiteral ::UTF8) && "Only narrow string literals are currently supported" ) ? static_cast<void> (0) : __assert_fail ("(getKind() == StringLiteral::Ascii || getKind() == StringLiteral::UTF8) && \"Only narrow string literals are currently supported\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1126, __PRETTY_FUNCTION__)); | ||||||||
| 1127 | |||||||||
| 1128 | // Loop over all of the tokens in this string until we find the one that | ||||||||
| 1129 | // contains the byte we're looking for. | ||||||||
| 1130 | unsigned TokNo = 0; | ||||||||
| 1131 | unsigned StringOffset = 0; | ||||||||
| 1132 | if (StartToken) | ||||||||
| 1133 | TokNo = *StartToken; | ||||||||
| 1134 | if (StartTokenByteOffset) { | ||||||||
| 1135 | StringOffset = *StartTokenByteOffset; | ||||||||
| 1136 | ByteNo -= StringOffset; | ||||||||
| 1137 | } | ||||||||
| 1138 | while (1) { | ||||||||
| 1139 | assert(TokNo < getNumConcatenated() && "Invalid byte number!")((TokNo < getNumConcatenated() && "Invalid byte number!" ) ? static_cast<void> (0) : __assert_fail ("TokNo < getNumConcatenated() && \"Invalid byte number!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1139, __PRETTY_FUNCTION__)); | ||||||||
| 1140 | SourceLocation StrTokLoc = getStrTokenLoc(TokNo); | ||||||||
| 1141 | |||||||||
| 1142 | // Get the spelling of the string so that we can get the data that makes up | ||||||||
| 1143 | // the string literal, not the identifier for the macro it is potentially | ||||||||
| 1144 | // expanded through. | ||||||||
| 1145 | SourceLocation StrTokSpellingLoc = SM.getSpellingLoc(StrTokLoc); | ||||||||
| 1146 | |||||||||
| 1147 | // Re-lex the token to get its length and original spelling. | ||||||||
| 1148 | std::pair<FileID, unsigned> LocInfo = | ||||||||
| 1149 | SM.getDecomposedLoc(StrTokSpellingLoc); | ||||||||
| 1150 | bool Invalid = false; | ||||||||
| 1151 | StringRef Buffer = SM.getBufferData(LocInfo.first, &Invalid); | ||||||||
| 1152 | if (Invalid) { | ||||||||
| 1153 | if (StartTokenByteOffset != nullptr) | ||||||||
| 1154 | *StartTokenByteOffset = StringOffset; | ||||||||
| 1155 | if (StartToken != nullptr) | ||||||||
| 1156 | *StartToken = TokNo; | ||||||||
| 1157 | return StrTokSpellingLoc; | ||||||||
| 1158 | } | ||||||||
| 1159 | |||||||||
| 1160 | const char *StrData = Buffer.data()+LocInfo.second; | ||||||||
| 1161 | |||||||||
| 1162 | // Create a lexer starting at the beginning of this token. | ||||||||
| 1163 | Lexer TheLexer(SM.getLocForStartOfFile(LocInfo.first), Features, | ||||||||
| 1164 | Buffer.begin(), StrData, Buffer.end()); | ||||||||
| 1165 | Token TheTok; | ||||||||
| 1166 | TheLexer.LexFromRawLexer(TheTok); | ||||||||
| 1167 | |||||||||
| 1168 | // Use the StringLiteralParser to compute the length of the string in bytes. | ||||||||
| 1169 | StringLiteralParser SLP(TheTok, SM, Features, Target); | ||||||||
| 1170 | unsigned TokNumBytes = SLP.GetStringLength(); | ||||||||
| 1171 | |||||||||
| 1172 | // If the byte is in this token, return the location of the byte. | ||||||||
| 1173 | if (ByteNo < TokNumBytes || | ||||||||
| 1174 | (ByteNo == TokNumBytes && TokNo == getNumConcatenated() - 1)) { | ||||||||
| 1175 | unsigned Offset = SLP.getOffsetOfStringByte(TheTok, ByteNo); | ||||||||
| 1176 | |||||||||
| 1177 | // Now that we know the offset of the token in the spelling, use the | ||||||||
| 1178 | // preprocessor to get the offset in the original source. | ||||||||
| 1179 | if (StartTokenByteOffset != nullptr) | ||||||||
| 1180 | *StartTokenByteOffset = StringOffset; | ||||||||
| 1181 | if (StartToken != nullptr) | ||||||||
| 1182 | *StartToken = TokNo; | ||||||||
| 1183 | return Lexer::AdvanceToTokenCharacter(StrTokLoc, Offset, SM, Features); | ||||||||
| 1184 | } | ||||||||
| 1185 | |||||||||
| 1186 | // Move to the next string token. | ||||||||
| 1187 | StringOffset += TokNumBytes; | ||||||||
| 1188 | ++TokNo; | ||||||||
| 1189 | ByteNo -= TokNumBytes; | ||||||||
| 1190 | } | ||||||||
| 1191 | } | ||||||||
| 1192 | |||||||||
| 1193 | /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it | ||||||||
| 1194 | /// corresponds to, e.g. "sizeof" or "[pre]++". | ||||||||
| 1195 | StringRef UnaryOperator::getOpcodeStr(Opcode Op) { | ||||||||
| 1196 | switch (Op) { | ||||||||
| 1197 | #define UNARY_OPERATION(Name, Spelling) case UO_##Name: return Spelling; | ||||||||
| 1198 | #include "clang/AST/OperationKinds.def" | ||||||||
| 1199 | } | ||||||||
| 1200 | llvm_unreachable("Unknown unary operator")::llvm::llvm_unreachable_internal("Unknown unary operator", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1200); | ||||||||
| 1201 | } | ||||||||
| 1202 | |||||||||
| 1203 | UnaryOperatorKind | ||||||||
| 1204 | UnaryOperator::getOverloadedOpcode(OverloadedOperatorKind OO, bool Postfix) { | ||||||||
| 1205 | switch (OO) { | ||||||||
| 1206 | default: llvm_unreachable("No unary operator for overloaded function")::llvm::llvm_unreachable_internal("No unary operator for overloaded function" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1206); | ||||||||
| 1207 | case OO_PlusPlus: return Postfix ? UO_PostInc : UO_PreInc; | ||||||||
| 1208 | case OO_MinusMinus: return Postfix ? UO_PostDec : UO_PreDec; | ||||||||
| 1209 | case OO_Amp: return UO_AddrOf; | ||||||||
| 1210 | case OO_Star: return UO_Deref; | ||||||||
| 1211 | case OO_Plus: return UO_Plus; | ||||||||
| 1212 | case OO_Minus: return UO_Minus; | ||||||||
| 1213 | case OO_Tilde: return UO_Not; | ||||||||
| 1214 | case OO_Exclaim: return UO_LNot; | ||||||||
| 1215 | case OO_Coawait: return UO_Coawait; | ||||||||
| 1216 | } | ||||||||
| 1217 | } | ||||||||
| 1218 | |||||||||
| 1219 | OverloadedOperatorKind UnaryOperator::getOverloadedOperator(Opcode Opc) { | ||||||||
| 1220 | switch (Opc) { | ||||||||
| 1221 | case UO_PostInc: case UO_PreInc: return OO_PlusPlus; | ||||||||
| 1222 | case UO_PostDec: case UO_PreDec: return OO_MinusMinus; | ||||||||
| 1223 | case UO_AddrOf: return OO_Amp; | ||||||||
| 1224 | case UO_Deref: return OO_Star; | ||||||||
| 1225 | case UO_Plus: return OO_Plus; | ||||||||
| 1226 | case UO_Minus: return OO_Minus; | ||||||||
| 1227 | case UO_Not: return OO_Tilde; | ||||||||
| 1228 | case UO_LNot: return OO_Exclaim; | ||||||||
| 1229 | case UO_Coawait: return OO_Coawait; | ||||||||
| 1230 | default: return OO_None; | ||||||||
| 1231 | } | ||||||||
| 1232 | } | ||||||||
| 1233 | |||||||||
| 1234 | |||||||||
| 1235 | //===----------------------------------------------------------------------===// | ||||||||
| 1236 | // Postfix Operators. | ||||||||
| 1237 | //===----------------------------------------------------------------------===// | ||||||||
| 1238 | |||||||||
| 1239 | CallExpr::CallExpr(StmtClass SC, Expr *Fn, ArrayRef<Expr *> PreArgs, | ||||||||
| 1240 | ArrayRef<Expr *> Args, QualType Ty, ExprValueKind VK, | ||||||||
| 1241 | SourceLocation RParenLoc, FPOptionsOverride FPFeatures, | ||||||||
| 1242 | unsigned MinNumArgs, ADLCallKind UsesADL) | ||||||||
| 1243 | : Expr(SC, Ty, VK, OK_Ordinary), RParenLoc(RParenLoc) { | ||||||||
| 1244 | NumArgs = std::max<unsigned>(Args.size(), MinNumArgs); | ||||||||
| 1245 | unsigned NumPreArgs = PreArgs.size(); | ||||||||
| 1246 | CallExprBits.NumPreArgs = NumPreArgs; | ||||||||
| 1247 | assert((NumPreArgs == getNumPreArgs()) && "NumPreArgs overflow!")(((NumPreArgs == getNumPreArgs()) && "NumPreArgs overflow!" ) ? static_cast<void> (0) : __assert_fail ("(NumPreArgs == getNumPreArgs()) && \"NumPreArgs overflow!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1247, __PRETTY_FUNCTION__)); | ||||||||
| 1248 | |||||||||
| 1249 | unsigned OffsetToTrailingObjects = offsetToTrailingObjects(SC); | ||||||||
| 1250 | CallExprBits.OffsetToTrailingObjects = OffsetToTrailingObjects; | ||||||||
| 1251 | assert((CallExprBits.OffsetToTrailingObjects == OffsetToTrailingObjects) &&(((CallExprBits.OffsetToTrailingObjects == OffsetToTrailingObjects ) && "OffsetToTrailingObjects overflow!") ? static_cast <void> (0) : __assert_fail ("(CallExprBits.OffsetToTrailingObjects == OffsetToTrailingObjects) && \"OffsetToTrailingObjects overflow!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1252, __PRETTY_FUNCTION__)) | ||||||||
| 1252 | "OffsetToTrailingObjects overflow!")(((CallExprBits.OffsetToTrailingObjects == OffsetToTrailingObjects ) && "OffsetToTrailingObjects overflow!") ? static_cast <void> (0) : __assert_fail ("(CallExprBits.OffsetToTrailingObjects == OffsetToTrailingObjects) && \"OffsetToTrailingObjects overflow!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1252, __PRETTY_FUNCTION__)); | ||||||||
| 1253 | |||||||||
| 1254 | CallExprBits.UsesADL = static_cast<bool>(UsesADL); | ||||||||
| 1255 | |||||||||
| 1256 | setCallee(Fn); | ||||||||
| 1257 | for (unsigned I = 0; I != NumPreArgs; ++I) | ||||||||
| 1258 | setPreArg(I, PreArgs[I]); | ||||||||
| 1259 | for (unsigned I = 0; I != Args.size(); ++I) | ||||||||
| 1260 | setArg(I, Args[I]); | ||||||||
| 1261 | for (unsigned I = Args.size(); I != NumArgs; ++I) | ||||||||
| 1262 | setArg(I, nullptr); | ||||||||
| 1263 | |||||||||
| 1264 | setDependence(computeDependence(this, PreArgs)); | ||||||||
| 1265 | |||||||||
| 1266 | CallExprBits.HasFPFeatures = FPFeatures.requiresTrailingStorage(); | ||||||||
| 1267 | if (hasStoredFPFeatures()) | ||||||||
| 1268 | setStoredFPFeatures(FPFeatures); | ||||||||
| 1269 | } | ||||||||
| 1270 | |||||||||
| 1271 | CallExpr::CallExpr(StmtClass SC, unsigned NumPreArgs, unsigned NumArgs, | ||||||||
| 1272 | bool HasFPFeatures, EmptyShell Empty) | ||||||||
| 1273 | : Expr(SC, Empty), NumArgs(NumArgs) { | ||||||||
| 1274 | CallExprBits.NumPreArgs = NumPreArgs; | ||||||||
| 1275 | assert((NumPreArgs == getNumPreArgs()) && "NumPreArgs overflow!")(((NumPreArgs == getNumPreArgs()) && "NumPreArgs overflow!" ) ? static_cast<void> (0) : __assert_fail ("(NumPreArgs == getNumPreArgs()) && \"NumPreArgs overflow!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1275, __PRETTY_FUNCTION__)); | ||||||||
| 1276 | |||||||||
| 1277 | unsigned OffsetToTrailingObjects = offsetToTrailingObjects(SC); | ||||||||
| 1278 | CallExprBits.OffsetToTrailingObjects = OffsetToTrailingObjects; | ||||||||
| 1279 | assert((CallExprBits.OffsetToTrailingObjects == OffsetToTrailingObjects) &&(((CallExprBits.OffsetToTrailingObjects == OffsetToTrailingObjects ) && "OffsetToTrailingObjects overflow!") ? static_cast <void> (0) : __assert_fail ("(CallExprBits.OffsetToTrailingObjects == OffsetToTrailingObjects) && \"OffsetToTrailingObjects overflow!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1280, __PRETTY_FUNCTION__)) | ||||||||
| 1280 | "OffsetToTrailingObjects overflow!")(((CallExprBits.OffsetToTrailingObjects == OffsetToTrailingObjects ) && "OffsetToTrailingObjects overflow!") ? static_cast <void> (0) : __assert_fail ("(CallExprBits.OffsetToTrailingObjects == OffsetToTrailingObjects) && \"OffsetToTrailingObjects overflow!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1280, __PRETTY_FUNCTION__)); | ||||||||
| 1281 | CallExprBits.HasFPFeatures = HasFPFeatures; | ||||||||
| 1282 | } | ||||||||
| 1283 | |||||||||
| 1284 | CallExpr *CallExpr::Create(const ASTContext &Ctx, Expr *Fn, | ||||||||
| 1285 | ArrayRef<Expr *> Args, QualType Ty, ExprValueKind VK, | ||||||||
| 1286 | SourceLocation RParenLoc, | ||||||||
| 1287 | FPOptionsOverride FPFeatures, unsigned MinNumArgs, | ||||||||
| 1288 | ADLCallKind UsesADL) { | ||||||||
| 1289 | unsigned NumArgs = std::max<unsigned>(Args.size(), MinNumArgs); | ||||||||
| 1290 | unsigned SizeOfTrailingObjects = CallExpr::sizeOfTrailingObjects( | ||||||||
| 1291 | /*NumPreArgs=*/0, NumArgs, FPFeatures.requiresTrailingStorage()); | ||||||||
| 1292 | void *Mem = | ||||||||
| 1293 | Ctx.Allocate(sizeof(CallExpr) + SizeOfTrailingObjects, alignof(CallExpr)); | ||||||||
| 1294 | return new (Mem) CallExpr(CallExprClass, Fn, /*PreArgs=*/{}, Args, Ty, VK, | ||||||||
| 1295 | RParenLoc, FPFeatures, MinNumArgs, UsesADL); | ||||||||
| 1296 | } | ||||||||
| 1297 | |||||||||
| 1298 | CallExpr *CallExpr::CreateTemporary(void *Mem, Expr *Fn, QualType Ty, | ||||||||
| 1299 | ExprValueKind VK, SourceLocation RParenLoc, | ||||||||
| 1300 | ADLCallKind UsesADL) { | ||||||||
| 1301 | assert(!(reinterpret_cast<uintptr_t>(Mem) % alignof(CallExpr)) &&((!(reinterpret_cast<uintptr_t>(Mem) % alignof(CallExpr )) && "Misaligned memory in CallExpr::CreateTemporary!" ) ? static_cast<void> (0) : __assert_fail ("!(reinterpret_cast<uintptr_t>(Mem) % alignof(CallExpr)) && \"Misaligned memory in CallExpr::CreateTemporary!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1302, __PRETTY_FUNCTION__)) | ||||||||
| 1302 | "Misaligned memory in CallExpr::CreateTemporary!")((!(reinterpret_cast<uintptr_t>(Mem) % alignof(CallExpr )) && "Misaligned memory in CallExpr::CreateTemporary!" ) ? static_cast<void> (0) : __assert_fail ("!(reinterpret_cast<uintptr_t>(Mem) % alignof(CallExpr)) && \"Misaligned memory in CallExpr::CreateTemporary!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1302, __PRETTY_FUNCTION__)); | ||||||||
| 1303 | return new (Mem) CallExpr(CallExprClass, Fn, /*PreArgs=*/{}, /*Args=*/{}, Ty, | ||||||||
| 1304 | VK, RParenLoc, FPOptionsOverride(), | ||||||||
| 1305 | /*MinNumArgs=*/0, UsesADL); | ||||||||
| 1306 | } | ||||||||
| 1307 | |||||||||
| 1308 | CallExpr *CallExpr::CreateEmpty(const ASTContext &Ctx, unsigned NumArgs, | ||||||||
| 1309 | bool HasFPFeatures, EmptyShell Empty) { | ||||||||
| 1310 | unsigned SizeOfTrailingObjects = | ||||||||
| 1311 | CallExpr::sizeOfTrailingObjects(/*NumPreArgs=*/0, NumArgs, HasFPFeatures); | ||||||||
| 1312 | void *Mem = | ||||||||
| 1313 | Ctx.Allocate(sizeof(CallExpr) + SizeOfTrailingObjects, alignof(CallExpr)); | ||||||||
| 1314 | return new (Mem) | ||||||||
| 1315 | CallExpr(CallExprClass, /*NumPreArgs=*/0, NumArgs, HasFPFeatures, Empty); | ||||||||
| 1316 | } | ||||||||
| 1317 | |||||||||
| 1318 | unsigned CallExpr::offsetToTrailingObjects(StmtClass SC) { | ||||||||
| 1319 | switch (SC) { | ||||||||
| 1320 | case CallExprClass: | ||||||||
| 1321 | return sizeof(CallExpr); | ||||||||
| 1322 | case CXXOperatorCallExprClass: | ||||||||
| 1323 | return sizeof(CXXOperatorCallExpr); | ||||||||
| 1324 | case CXXMemberCallExprClass: | ||||||||
| 1325 | return sizeof(CXXMemberCallExpr); | ||||||||
| 1326 | case UserDefinedLiteralClass: | ||||||||
| 1327 | return sizeof(UserDefinedLiteral); | ||||||||
| 1328 | case CUDAKernelCallExprClass: | ||||||||
| 1329 | return sizeof(CUDAKernelCallExpr); | ||||||||
| 1330 | default: | ||||||||
| 1331 | llvm_unreachable("unexpected class deriving from CallExpr!")::llvm::llvm_unreachable_internal("unexpected class deriving from CallExpr!" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1331); | ||||||||
| 1332 | } | ||||||||
| 1333 | } | ||||||||
| 1334 | |||||||||
| 1335 | Decl *Expr::getReferencedDeclOfCallee() { | ||||||||
| 1336 | Expr *CEE = IgnoreParenImpCasts(); | ||||||||
| 1337 | |||||||||
| 1338 | while (SubstNonTypeTemplateParmExpr *NTTP = | ||||||||
| 1339 | dyn_cast<SubstNonTypeTemplateParmExpr>(CEE)) { | ||||||||
| 1340 | CEE = NTTP->getReplacement()->IgnoreParenImpCasts(); | ||||||||
| 1341 | } | ||||||||
| 1342 | |||||||||
| 1343 | // If we're calling a dereference, look at the pointer instead. | ||||||||
| 1344 | while (true) { | ||||||||
| 1345 | if (BinaryOperator *BO = dyn_cast<BinaryOperator>(CEE)) { | ||||||||
| 1346 | if (BO->isPtrMemOp()) { | ||||||||
| 1347 | CEE = BO->getRHS()->IgnoreParenImpCasts(); | ||||||||
| 1348 | continue; | ||||||||
| 1349 | } | ||||||||
| 1350 | } else if (UnaryOperator *UO = dyn_cast<UnaryOperator>(CEE)) { | ||||||||
| 1351 | if (UO->getOpcode() == UO_Deref || UO->getOpcode() == UO_AddrOf || | ||||||||
| 1352 | UO->getOpcode() == UO_Plus) { | ||||||||
| 1353 | CEE = UO->getSubExpr()->IgnoreParenImpCasts(); | ||||||||
| 1354 | continue; | ||||||||
| 1355 | } | ||||||||
| 1356 | } | ||||||||
| 1357 | break; | ||||||||
| 1358 | } | ||||||||
| 1359 | |||||||||
| 1360 | if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(CEE)) | ||||||||
| 1361 | return DRE->getDecl(); | ||||||||
| 1362 | if (MemberExpr *ME = dyn_cast<MemberExpr>(CEE)) | ||||||||
| 1363 | return ME->getMemberDecl(); | ||||||||
| 1364 | if (auto *BE = dyn_cast<BlockExpr>(CEE)) | ||||||||
| 1365 | return BE->getBlockDecl(); | ||||||||
| 1366 | |||||||||
| 1367 | return nullptr; | ||||||||
| 1368 | } | ||||||||
| 1369 | |||||||||
| 1370 | /// If this is a call to a builtin, return the builtin ID. If not, return 0. | ||||||||
| 1371 | unsigned CallExpr::getBuiltinCallee() const { | ||||||||
| 1372 | auto *FDecl = | ||||||||
| 1373 | dyn_cast_or_null<FunctionDecl>(getCallee()->getReferencedDeclOfCallee()); | ||||||||
| 1374 | return FDecl ? FDecl->getBuiltinID() : 0; | ||||||||
| 1375 | } | ||||||||
| 1376 | |||||||||
| 1377 | bool CallExpr::isUnevaluatedBuiltinCall(const ASTContext &Ctx) const { | ||||||||
| 1378 | if (unsigned BI = getBuiltinCallee()) | ||||||||
| 1379 | return Ctx.BuiltinInfo.isUnevaluated(BI); | ||||||||
| 1380 | return false; | ||||||||
| 1381 | } | ||||||||
| 1382 | |||||||||
| 1383 | QualType CallExpr::getCallReturnType(const ASTContext &Ctx) const { | ||||||||
| 1384 | const Expr *Callee = getCallee(); | ||||||||
| 1385 | QualType CalleeType = Callee->getType(); | ||||||||
| 1386 | if (const auto *FnTypePtr = CalleeType->getAs<PointerType>()) { | ||||||||
| 1387 | CalleeType = FnTypePtr->getPointeeType(); | ||||||||
| 1388 | } else if (const auto *BPT = CalleeType->getAs<BlockPointerType>()) { | ||||||||
| 1389 | CalleeType = BPT->getPointeeType(); | ||||||||
| 1390 | } else if (CalleeType->isSpecificPlaceholderType(BuiltinType::BoundMember)) { | ||||||||
| 1391 | if (isa<CXXPseudoDestructorExpr>(Callee->IgnoreParens())) | ||||||||
| 1392 | return Ctx.VoidTy; | ||||||||
| 1393 | |||||||||
| 1394 | if (isa<UnresolvedMemberExpr>(Callee->IgnoreParens())) | ||||||||
| 1395 | return Ctx.DependentTy; | ||||||||
| 1396 | |||||||||
| 1397 | // This should never be overloaded and so should never return null. | ||||||||
| 1398 | CalleeType = Expr::findBoundMemberType(Callee); | ||||||||
| 1399 | assert(!CalleeType.isNull())((!CalleeType.isNull()) ? static_cast<void> (0) : __assert_fail ("!CalleeType.isNull()", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1399, __PRETTY_FUNCTION__)); | ||||||||
| 1400 | } else if (CalleeType->isDependentType() || | ||||||||
| 1401 | CalleeType->isSpecificPlaceholderType(BuiltinType::Overload)) { | ||||||||
| 1402 | return Ctx.DependentTy; | ||||||||
| 1403 | } | ||||||||
| 1404 | |||||||||
| 1405 | const FunctionType *FnType = CalleeType->castAs<FunctionType>(); | ||||||||
| 1406 | return FnType->getReturnType(); | ||||||||
| 1407 | } | ||||||||
| 1408 | |||||||||
| 1409 | const Attr *CallExpr::getUnusedResultAttr(const ASTContext &Ctx) const { | ||||||||
| 1410 | // If the return type is a struct, union, or enum that is marked nodiscard, | ||||||||
| 1411 | // then return the return type attribute. | ||||||||
| 1412 | if (const TagDecl *TD = getCallReturnType(Ctx)->getAsTagDecl()) | ||||||||
| 1413 | if (const auto *A = TD->getAttr<WarnUnusedResultAttr>()) | ||||||||
| 1414 | return A; | ||||||||
| 1415 | |||||||||
| 1416 | // Otherwise, see if the callee is marked nodiscard and return that attribute | ||||||||
| 1417 | // instead. | ||||||||
| 1418 | const Decl *D = getCalleeDecl(); | ||||||||
| 1419 | return D ? D->getAttr<WarnUnusedResultAttr>() : nullptr; | ||||||||
| 1420 | } | ||||||||
| 1421 | |||||||||
| 1422 | SourceLocation CallExpr::getBeginLoc() const { | ||||||||
| 1423 | if (isa<CXXOperatorCallExpr>(this)) | ||||||||
| 1424 | return cast<CXXOperatorCallExpr>(this)->getBeginLoc(); | ||||||||
| 1425 | |||||||||
| 1426 | SourceLocation begin = getCallee()->getBeginLoc(); | ||||||||
| 1427 | if (begin.isInvalid() && getNumArgs() > 0 && getArg(0)) | ||||||||
| 1428 | begin = getArg(0)->getBeginLoc(); | ||||||||
| 1429 | return begin; | ||||||||
| 1430 | } | ||||||||
| 1431 | SourceLocation CallExpr::getEndLoc() const { | ||||||||
| 1432 | if (isa<CXXOperatorCallExpr>(this)) | ||||||||
| 1433 | return cast<CXXOperatorCallExpr>(this)->getEndLoc(); | ||||||||
| 1434 | |||||||||
| 1435 | SourceLocation end = getRParenLoc(); | ||||||||
| 1436 | if (end.isInvalid() && getNumArgs() > 0 && getArg(getNumArgs() - 1)) | ||||||||
| 1437 | end = getArg(getNumArgs() - 1)->getEndLoc(); | ||||||||
| 1438 | return end; | ||||||||
| 1439 | } | ||||||||
| 1440 | |||||||||
| 1441 | OffsetOfExpr *OffsetOfExpr::Create(const ASTContext &C, QualType type, | ||||||||
| 1442 | SourceLocation OperatorLoc, | ||||||||
| 1443 | TypeSourceInfo *tsi, | ||||||||
| 1444 | ArrayRef<OffsetOfNode> comps, | ||||||||
| 1445 | ArrayRef<Expr*> exprs, | ||||||||
| 1446 | SourceLocation RParenLoc) { | ||||||||
| 1447 | void *Mem = C.Allocate( | ||||||||
| 1448 | totalSizeToAlloc<OffsetOfNode, Expr *>(comps.size(), exprs.size())); | ||||||||
| 1449 | |||||||||
| 1450 | return new (Mem) OffsetOfExpr(C, type, OperatorLoc, tsi, comps, exprs, | ||||||||
| 1451 | RParenLoc); | ||||||||
| 1452 | } | ||||||||
| 1453 | |||||||||
| 1454 | OffsetOfExpr *OffsetOfExpr::CreateEmpty(const ASTContext &C, | ||||||||
| 1455 | unsigned numComps, unsigned numExprs) { | ||||||||
| 1456 | void *Mem = | ||||||||
| 1457 | C.Allocate(totalSizeToAlloc<OffsetOfNode, Expr *>(numComps, numExprs)); | ||||||||
| 1458 | return new (Mem) OffsetOfExpr(numComps, numExprs); | ||||||||
| 1459 | } | ||||||||
| 1460 | |||||||||
| 1461 | OffsetOfExpr::OffsetOfExpr(const ASTContext &C, QualType type, | ||||||||
| 1462 | SourceLocation OperatorLoc, TypeSourceInfo *tsi, | ||||||||
| 1463 | ArrayRef<OffsetOfNode> comps, ArrayRef<Expr *> exprs, | ||||||||
| 1464 | SourceLocation RParenLoc) | ||||||||
| 1465 | : Expr(OffsetOfExprClass, type, VK_RValue, OK_Ordinary), | ||||||||
| 1466 | OperatorLoc(OperatorLoc), RParenLoc(RParenLoc), TSInfo(tsi), | ||||||||
| 1467 | NumComps(comps.size()), NumExprs(exprs.size()) { | ||||||||
| 1468 | for (unsigned i = 0; i != comps.size(); ++i) | ||||||||
| 1469 | setComponent(i, comps[i]); | ||||||||
| 1470 | for (unsigned i = 0; i != exprs.size(); ++i) | ||||||||
| 1471 | setIndexExpr(i, exprs[i]); | ||||||||
| 1472 | |||||||||
| 1473 | setDependence(computeDependence(this)); | ||||||||
| 1474 | } | ||||||||
| 1475 | |||||||||
| 1476 | IdentifierInfo *OffsetOfNode::getFieldName() const { | ||||||||
| 1477 | assert(getKind() == Field || getKind() == Identifier)((getKind() == Field || getKind() == Identifier) ? static_cast <void> (0) : __assert_fail ("getKind() == Field || getKind() == Identifier" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1477, __PRETTY_FUNCTION__)); | ||||||||
| 1478 | if (getKind() == Field) | ||||||||
| 1479 | return getField()->getIdentifier(); | ||||||||
| 1480 | |||||||||
| 1481 | return reinterpret_cast<IdentifierInfo *> (Data & ~(uintptr_t)Mask); | ||||||||
| 1482 | } | ||||||||
| 1483 | |||||||||
| 1484 | UnaryExprOrTypeTraitExpr::UnaryExprOrTypeTraitExpr( | ||||||||
| 1485 | UnaryExprOrTypeTrait ExprKind, Expr *E, QualType resultType, | ||||||||
| 1486 | SourceLocation op, SourceLocation rp) | ||||||||
| 1487 | : Expr(UnaryExprOrTypeTraitExprClass, resultType, VK_RValue, OK_Ordinary), | ||||||||
| 1488 | OpLoc(op), RParenLoc(rp) { | ||||||||
| 1489 | assert(ExprKind <= UETT_Last && "invalid enum value!")((ExprKind <= UETT_Last && "invalid enum value!") ? static_cast<void> (0) : __assert_fail ("ExprKind <= UETT_Last && \"invalid enum value!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1489, __PRETTY_FUNCTION__)); | ||||||||
| 1490 | UnaryExprOrTypeTraitExprBits.Kind = ExprKind; | ||||||||
| 1491 | assert(static_cast<unsigned>(ExprKind) == UnaryExprOrTypeTraitExprBits.Kind &&((static_cast<unsigned>(ExprKind) == UnaryExprOrTypeTraitExprBits .Kind && "UnaryExprOrTypeTraitExprBits.Kind overflow!" ) ? static_cast<void> (0) : __assert_fail ("static_cast<unsigned>(ExprKind) == UnaryExprOrTypeTraitExprBits.Kind && \"UnaryExprOrTypeTraitExprBits.Kind overflow!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1492, __PRETTY_FUNCTION__)) | ||||||||
| 1492 | "UnaryExprOrTypeTraitExprBits.Kind overflow!")((static_cast<unsigned>(ExprKind) == UnaryExprOrTypeTraitExprBits .Kind && "UnaryExprOrTypeTraitExprBits.Kind overflow!" ) ? static_cast<void> (0) : __assert_fail ("static_cast<unsigned>(ExprKind) == UnaryExprOrTypeTraitExprBits.Kind && \"UnaryExprOrTypeTraitExprBits.Kind overflow!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1492, __PRETTY_FUNCTION__)); | ||||||||
| 1493 | UnaryExprOrTypeTraitExprBits.IsType = false; | ||||||||
| 1494 | Argument.Ex = E; | ||||||||
| 1495 | setDependence(computeDependence(this)); | ||||||||
| 1496 | } | ||||||||
| 1497 | |||||||||
| 1498 | MemberExpr::MemberExpr(Expr *Base, bool IsArrow, SourceLocation OperatorLoc, | ||||||||
| 1499 | ValueDecl *MemberDecl, | ||||||||
| 1500 | const DeclarationNameInfo &NameInfo, QualType T, | ||||||||
| 1501 | ExprValueKind VK, ExprObjectKind OK, | ||||||||
| 1502 | NonOdrUseReason NOUR) | ||||||||
| 1503 | : Expr(MemberExprClass, T, VK, OK), Base(Base), MemberDecl(MemberDecl), | ||||||||
| 1504 | MemberDNLoc(NameInfo.getInfo()), MemberLoc(NameInfo.getLoc()) { | ||||||||
| 1505 | assert(!NameInfo.getName() ||((!NameInfo.getName() || MemberDecl->getDeclName() == NameInfo .getName()) ? static_cast<void> (0) : __assert_fail ("!NameInfo.getName() || MemberDecl->getDeclName() == NameInfo.getName()" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1506, __PRETTY_FUNCTION__)) | ||||||||
| 1506 | MemberDecl->getDeclName() == NameInfo.getName())((!NameInfo.getName() || MemberDecl->getDeclName() == NameInfo .getName()) ? static_cast<void> (0) : __assert_fail ("!NameInfo.getName() || MemberDecl->getDeclName() == NameInfo.getName()" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1506, __PRETTY_FUNCTION__)); | ||||||||
| 1507 | MemberExprBits.IsArrow = IsArrow; | ||||||||
| 1508 | MemberExprBits.HasQualifierOrFoundDecl = false; | ||||||||
| 1509 | MemberExprBits.HasTemplateKWAndArgsInfo = false; | ||||||||
| 1510 | MemberExprBits.HadMultipleCandidates = false; | ||||||||
| 1511 | MemberExprBits.NonOdrUseReason = NOUR; | ||||||||
| 1512 | MemberExprBits.OperatorLoc = OperatorLoc; | ||||||||
| 1513 | setDependence(computeDependence(this)); | ||||||||
| 1514 | } | ||||||||
| 1515 | |||||||||
| 1516 | MemberExpr *MemberExpr::Create( | ||||||||
| 1517 | const ASTContext &C, Expr *Base, bool IsArrow, SourceLocation OperatorLoc, | ||||||||
| 1518 | NestedNameSpecifierLoc QualifierLoc, SourceLocation TemplateKWLoc, | ||||||||
| 1519 | ValueDecl *MemberDecl, DeclAccessPair FoundDecl, | ||||||||
| 1520 | DeclarationNameInfo NameInfo, const TemplateArgumentListInfo *TemplateArgs, | ||||||||
| 1521 | QualType T, ExprValueKind VK, ExprObjectKind OK, NonOdrUseReason NOUR) { | ||||||||
| 1522 | bool HasQualOrFound = QualifierLoc || FoundDecl.getDecl() != MemberDecl || | ||||||||
| 1523 | FoundDecl.getAccess() != MemberDecl->getAccess(); | ||||||||
| 1524 | bool HasTemplateKWAndArgsInfo = TemplateArgs || TemplateKWLoc.isValid(); | ||||||||
| 1525 | std::size_t Size = | ||||||||
| 1526 | totalSizeToAlloc<MemberExprNameQualifier, ASTTemplateKWAndArgsInfo, | ||||||||
| 1527 | TemplateArgumentLoc>( | ||||||||
| 1528 | HasQualOrFound ? 1 : 0, HasTemplateKWAndArgsInfo ? 1 : 0, | ||||||||
| 1529 | TemplateArgs ? TemplateArgs->size() : 0); | ||||||||
| 1530 | |||||||||
| 1531 | void *Mem = C.Allocate(Size, alignof(MemberExpr)); | ||||||||
| 1532 | MemberExpr *E = new (Mem) MemberExpr(Base, IsArrow, OperatorLoc, MemberDecl, | ||||||||
| 1533 | NameInfo, T, VK, OK, NOUR); | ||||||||
| 1534 | |||||||||
| 1535 | // FIXME: remove remaining dependence computation to computeDependence(). | ||||||||
| 1536 | auto Deps = E->getDependence(); | ||||||||
| 1537 | if (HasQualOrFound) { | ||||||||
| 1538 | // FIXME: Wrong. We should be looking at the member declaration we found. | ||||||||
| 1539 | if (QualifierLoc && QualifierLoc.getNestedNameSpecifier()->isDependent()) | ||||||||
| 1540 | Deps |= ExprDependence::TypeValueInstantiation; | ||||||||
| 1541 | else if (QualifierLoc && | ||||||||
| 1542 | QualifierLoc.getNestedNameSpecifier()->isInstantiationDependent()) | ||||||||
| 1543 | Deps |= ExprDependence::Instantiation; | ||||||||
| 1544 | |||||||||
| 1545 | E->MemberExprBits.HasQualifierOrFoundDecl = true; | ||||||||
| 1546 | |||||||||
| 1547 | MemberExprNameQualifier *NQ = | ||||||||
| 1548 | E->getTrailingObjects<MemberExprNameQualifier>(); | ||||||||
| 1549 | NQ->QualifierLoc = QualifierLoc; | ||||||||
| 1550 | NQ->FoundDecl = FoundDecl; | ||||||||
| 1551 | } | ||||||||
| 1552 | |||||||||
| 1553 | E->MemberExprBits.HasTemplateKWAndArgsInfo = | ||||||||
| 1554 | TemplateArgs || TemplateKWLoc.isValid(); | ||||||||
| 1555 | |||||||||
| 1556 | if (TemplateArgs) { | ||||||||
| 1557 | auto TemplateArgDeps = TemplateArgumentDependence::None; | ||||||||
| 1558 | E->getTrailingObjects<ASTTemplateKWAndArgsInfo>()->initializeFrom( | ||||||||
| 1559 | TemplateKWLoc, *TemplateArgs, | ||||||||
| 1560 | E->getTrailingObjects<TemplateArgumentLoc>(), TemplateArgDeps); | ||||||||
| 1561 | if (TemplateArgDeps & TemplateArgumentDependence::Instantiation) | ||||||||
| 1562 | Deps |= ExprDependence::Instantiation; | ||||||||
| 1563 | } else if (TemplateKWLoc.isValid()) { | ||||||||
| 1564 | E->getTrailingObjects<ASTTemplateKWAndArgsInfo>()->initializeFrom( | ||||||||
| 1565 | TemplateKWLoc); | ||||||||
| 1566 | } | ||||||||
| 1567 | E->setDependence(Deps); | ||||||||
| 1568 | |||||||||
| 1569 | return E; | ||||||||
| 1570 | } | ||||||||
| 1571 | |||||||||
| 1572 | MemberExpr *MemberExpr::CreateEmpty(const ASTContext &Context, | ||||||||
| 1573 | bool HasQualifier, bool HasFoundDecl, | ||||||||
| 1574 | bool HasTemplateKWAndArgsInfo, | ||||||||
| 1575 | unsigned NumTemplateArgs) { | ||||||||
| 1576 | assert((!NumTemplateArgs || HasTemplateKWAndArgsInfo) &&(((!NumTemplateArgs || HasTemplateKWAndArgsInfo) && "template args but no template arg info?" ) ? static_cast<void> (0) : __assert_fail ("(!NumTemplateArgs || HasTemplateKWAndArgsInfo) && \"template args but no template arg info?\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1577, __PRETTY_FUNCTION__)) | ||||||||
| 1577 | "template args but no template arg info?")(((!NumTemplateArgs || HasTemplateKWAndArgsInfo) && "template args but no template arg info?" ) ? static_cast<void> (0) : __assert_fail ("(!NumTemplateArgs || HasTemplateKWAndArgsInfo) && \"template args but no template arg info?\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1577, __PRETTY_FUNCTION__)); | ||||||||
| 1578 | bool HasQualOrFound = HasQualifier || HasFoundDecl; | ||||||||
| 1579 | std::size_t Size = | ||||||||
| 1580 | totalSizeToAlloc<MemberExprNameQualifier, ASTTemplateKWAndArgsInfo, | ||||||||
| 1581 | TemplateArgumentLoc>(HasQualOrFound ? 1 : 0, | ||||||||
| 1582 | HasTemplateKWAndArgsInfo ? 1 : 0, | ||||||||
| 1583 | NumTemplateArgs); | ||||||||
| 1584 | void *Mem = Context.Allocate(Size, alignof(MemberExpr)); | ||||||||
| 1585 | return new (Mem) MemberExpr(EmptyShell()); | ||||||||
| 1586 | } | ||||||||
| 1587 | |||||||||
| 1588 | void MemberExpr::setMemberDecl(ValueDecl *D) { | ||||||||
| 1589 | MemberDecl = D; | ||||||||
| 1590 | setDependence(computeDependence(this)); | ||||||||
| 1591 | } | ||||||||
| 1592 | |||||||||
| 1593 | SourceLocation MemberExpr::getBeginLoc() const { | ||||||||
| 1594 | if (isImplicitAccess()) { | ||||||||
| 1595 | if (hasQualifier()) | ||||||||
| 1596 | return getQualifierLoc().getBeginLoc(); | ||||||||
| 1597 | return MemberLoc; | ||||||||
| 1598 | } | ||||||||
| 1599 | |||||||||
| 1600 | // FIXME: We don't want this to happen. Rather, we should be able to | ||||||||
| 1601 | // detect all kinds of implicit accesses more cleanly. | ||||||||
| 1602 | SourceLocation BaseStartLoc = getBase()->getBeginLoc(); | ||||||||
| 1603 | if (BaseStartLoc.isValid()) | ||||||||
| 1604 | return BaseStartLoc; | ||||||||
| 1605 | return MemberLoc; | ||||||||
| 1606 | } | ||||||||
| 1607 | SourceLocation MemberExpr::getEndLoc() const { | ||||||||
| 1608 | SourceLocation EndLoc = getMemberNameInfo().getEndLoc(); | ||||||||
| 1609 | if (hasExplicitTemplateArgs()) | ||||||||
| 1610 | EndLoc = getRAngleLoc(); | ||||||||
| 1611 | else if (EndLoc.isInvalid()) | ||||||||
| 1612 | EndLoc = getBase()->getEndLoc(); | ||||||||
| 1613 | return EndLoc; | ||||||||
| 1614 | } | ||||||||
| 1615 | |||||||||
| 1616 | bool CastExpr::CastConsistency() const { | ||||||||
| 1617 | switch (getCastKind()) { | ||||||||
| 1618 | case CK_DerivedToBase: | ||||||||
| 1619 | case CK_UncheckedDerivedToBase: | ||||||||
| 1620 | case CK_DerivedToBaseMemberPointer: | ||||||||
| 1621 | case CK_BaseToDerived: | ||||||||
| 1622 | case CK_BaseToDerivedMemberPointer: | ||||||||
| 1623 | assert(!path_empty() && "Cast kind should have a base path!")((!path_empty() && "Cast kind should have a base path!" ) ? static_cast<void> (0) : __assert_fail ("!path_empty() && \"Cast kind should have a base path!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1623, __PRETTY_FUNCTION__)); | ||||||||
| 1624 | break; | ||||||||
| 1625 | |||||||||
| 1626 | case CK_CPointerToObjCPointerCast: | ||||||||
| 1627 | assert(getType()->isObjCObjectPointerType())((getType()->isObjCObjectPointerType()) ? static_cast<void > (0) : __assert_fail ("getType()->isObjCObjectPointerType()" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1627, __PRETTY_FUNCTION__)); | ||||||||
| 1628 | assert(getSubExpr()->getType()->isPointerType())((getSubExpr()->getType()->isPointerType()) ? static_cast <void> (0) : __assert_fail ("getSubExpr()->getType()->isPointerType()" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1628, __PRETTY_FUNCTION__)); | ||||||||
| 1629 | goto CheckNoBasePath; | ||||||||
| 1630 | |||||||||
| 1631 | case CK_BlockPointerToObjCPointerCast: | ||||||||
| 1632 | assert(getType()->isObjCObjectPointerType())((getType()->isObjCObjectPointerType()) ? static_cast<void > (0) : __assert_fail ("getType()->isObjCObjectPointerType()" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1632, __PRETTY_FUNCTION__)); | ||||||||
| 1633 | assert(getSubExpr()->getType()->isBlockPointerType())((getSubExpr()->getType()->isBlockPointerType()) ? static_cast <void> (0) : __assert_fail ("getSubExpr()->getType()->isBlockPointerType()" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1633, __PRETTY_FUNCTION__)); | ||||||||
| 1634 | goto CheckNoBasePath; | ||||||||
| 1635 | |||||||||
| 1636 | case CK_ReinterpretMemberPointer: | ||||||||
| 1637 | assert(getType()->isMemberPointerType())((getType()->isMemberPointerType()) ? static_cast<void> (0) : __assert_fail ("getType()->isMemberPointerType()", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1637, __PRETTY_FUNCTION__)); | ||||||||
| 1638 | assert(getSubExpr()->getType()->isMemberPointerType())((getSubExpr()->getType()->isMemberPointerType()) ? static_cast <void> (0) : __assert_fail ("getSubExpr()->getType()->isMemberPointerType()" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1638, __PRETTY_FUNCTION__)); | ||||||||
| 1639 | goto CheckNoBasePath; | ||||||||
| 1640 | |||||||||
| 1641 | case CK_BitCast: | ||||||||
| 1642 | // Arbitrary casts to C pointer types count as bitcasts. | ||||||||
| 1643 | // Otherwise, we should only have block and ObjC pointer casts | ||||||||
| 1644 | // here if they stay within the type kind. | ||||||||
| 1645 | if (!getType()->isPointerType()) { | ||||||||
| 1646 | assert(getType()->isObjCObjectPointerType() ==((getType()->isObjCObjectPointerType() == getSubExpr()-> getType()->isObjCObjectPointerType()) ? static_cast<void > (0) : __assert_fail ("getType()->isObjCObjectPointerType() == getSubExpr()->getType()->isObjCObjectPointerType()" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1647, __PRETTY_FUNCTION__)) | ||||||||
| 1647 | getSubExpr()->getType()->isObjCObjectPointerType())((getType()->isObjCObjectPointerType() == getSubExpr()-> getType()->isObjCObjectPointerType()) ? static_cast<void > (0) : __assert_fail ("getType()->isObjCObjectPointerType() == getSubExpr()->getType()->isObjCObjectPointerType()" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1647, __PRETTY_FUNCTION__)); | ||||||||
| 1648 | assert(getType()->isBlockPointerType() ==((getType()->isBlockPointerType() == getSubExpr()->getType ()->isBlockPointerType()) ? static_cast<void> (0) : __assert_fail ("getType()->isBlockPointerType() == getSubExpr()->getType()->isBlockPointerType()" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1649, __PRETTY_FUNCTION__)) | ||||||||
| 1649 | getSubExpr()->getType()->isBlockPointerType())((getType()->isBlockPointerType() == getSubExpr()->getType ()->isBlockPointerType()) ? static_cast<void> (0) : __assert_fail ("getType()->isBlockPointerType() == getSubExpr()->getType()->isBlockPointerType()" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1649, __PRETTY_FUNCTION__)); | ||||||||
| 1650 | } | ||||||||
| 1651 | goto CheckNoBasePath; | ||||||||
| 1652 | |||||||||
| 1653 | case CK_AnyPointerToBlockPointerCast: | ||||||||
| 1654 | assert(getType()->isBlockPointerType())((getType()->isBlockPointerType()) ? static_cast<void> (0) : __assert_fail ("getType()->isBlockPointerType()", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1654, __PRETTY_FUNCTION__)); | ||||||||
| 1655 | assert(getSubExpr()->getType()->isAnyPointerType() &&((getSubExpr()->getType()->isAnyPointerType() && !getSubExpr()->getType()->isBlockPointerType()) ? static_cast <void> (0) : __assert_fail ("getSubExpr()->getType()->isAnyPointerType() && !getSubExpr()->getType()->isBlockPointerType()" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1656, __PRETTY_FUNCTION__)) | ||||||||
| 1656 | !getSubExpr()->getType()->isBlockPointerType())((getSubExpr()->getType()->isAnyPointerType() && !getSubExpr()->getType()->isBlockPointerType()) ? static_cast <void> (0) : __assert_fail ("getSubExpr()->getType()->isAnyPointerType() && !getSubExpr()->getType()->isBlockPointerType()" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1656, __PRETTY_FUNCTION__)); | ||||||||
| 1657 | goto CheckNoBasePath; | ||||||||
| 1658 | |||||||||
| 1659 | case CK_CopyAndAutoreleaseBlockObject: | ||||||||
| 1660 | assert(getType()->isBlockPointerType())((getType()->isBlockPointerType()) ? static_cast<void> (0) : __assert_fail ("getType()->isBlockPointerType()", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1660, __PRETTY_FUNCTION__)); | ||||||||
| 1661 | assert(getSubExpr()->getType()->isBlockPointerType())((getSubExpr()->getType()->isBlockPointerType()) ? static_cast <void> (0) : __assert_fail ("getSubExpr()->getType()->isBlockPointerType()" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1661, __PRETTY_FUNCTION__)); | ||||||||
| 1662 | goto CheckNoBasePath; | ||||||||
| 1663 | |||||||||
| 1664 | case CK_FunctionToPointerDecay: | ||||||||
| 1665 | assert(getType()->isPointerType())((getType()->isPointerType()) ? static_cast<void> (0 ) : __assert_fail ("getType()->isPointerType()", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1665, __PRETTY_FUNCTION__)); | ||||||||
| 1666 | assert(getSubExpr()->getType()->isFunctionType())((getSubExpr()->getType()->isFunctionType()) ? static_cast <void> (0) : __assert_fail ("getSubExpr()->getType()->isFunctionType()" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1666, __PRETTY_FUNCTION__)); | ||||||||
| 1667 | goto CheckNoBasePath; | ||||||||
| 1668 | |||||||||
| 1669 | case CK_AddressSpaceConversion: { | ||||||||
| 1670 | auto Ty = getType(); | ||||||||
| 1671 | auto SETy = getSubExpr()->getType(); | ||||||||
| 1672 | assert(getValueKindForType(Ty) == Expr::getValueKindForType(SETy))((getValueKindForType(Ty) == Expr::getValueKindForType(SETy)) ? static_cast<void> (0) : __assert_fail ("getValueKindForType(Ty) == Expr::getValueKindForType(SETy)" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1672, __PRETTY_FUNCTION__)); | ||||||||
| 1673 | if (isRValue() && !Ty->isDependentType() && !SETy->isDependentType()) { | ||||||||
| 1674 | Ty = Ty->getPointeeType(); | ||||||||
| 1675 | SETy = SETy->getPointeeType(); | ||||||||
| 1676 | } | ||||||||
| 1677 | assert((Ty->isDependentType() || SETy->isDependentType()) ||(((Ty->isDependentType() || SETy->isDependentType()) || (!Ty.isNull() && !SETy.isNull() && Ty.getAddressSpace () != SETy.getAddressSpace())) ? static_cast<void> (0) : __assert_fail ("(Ty->isDependentType() || SETy->isDependentType()) || (!Ty.isNull() && !SETy.isNull() && Ty.getAddressSpace() != SETy.getAddressSpace())" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1679, __PRETTY_FUNCTION__)) | ||||||||
| 1678 | (!Ty.isNull() && !SETy.isNull() &&(((Ty->isDependentType() || SETy->isDependentType()) || (!Ty.isNull() && !SETy.isNull() && Ty.getAddressSpace () != SETy.getAddressSpace())) ? static_cast<void> (0) : __assert_fail ("(Ty->isDependentType() || SETy->isDependentType()) || (!Ty.isNull() && !SETy.isNull() && Ty.getAddressSpace() != SETy.getAddressSpace())" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1679, __PRETTY_FUNCTION__)) | ||||||||
| 1679 | Ty.getAddressSpace() != SETy.getAddressSpace()))(((Ty->isDependentType() || SETy->isDependentType()) || (!Ty.isNull() && !SETy.isNull() && Ty.getAddressSpace () != SETy.getAddressSpace())) ? static_cast<void> (0) : __assert_fail ("(Ty->isDependentType() || SETy->isDependentType()) || (!Ty.isNull() && !SETy.isNull() && Ty.getAddressSpace() != SETy.getAddressSpace())" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1679, __PRETTY_FUNCTION__)); | ||||||||
| 1680 | goto CheckNoBasePath; | ||||||||
| 1681 | } | ||||||||
| 1682 | // These should not have an inheritance path. | ||||||||
| 1683 | case CK_Dynamic: | ||||||||
| 1684 | case CK_ToUnion: | ||||||||
| 1685 | case CK_ArrayToPointerDecay: | ||||||||
| 1686 | case CK_NullToMemberPointer: | ||||||||
| 1687 | case CK_NullToPointer: | ||||||||
| 1688 | case CK_ConstructorConversion: | ||||||||
| 1689 | case CK_IntegralToPointer: | ||||||||
| 1690 | case CK_PointerToIntegral: | ||||||||
| 1691 | case CK_ToVoid: | ||||||||
| 1692 | case CK_VectorSplat: | ||||||||
| 1693 | case CK_IntegralCast: | ||||||||
| 1694 | case CK_BooleanToSignedIntegral: | ||||||||
| 1695 | case CK_IntegralToFloating: | ||||||||
| 1696 | case CK_FloatingToIntegral: | ||||||||
| 1697 | case CK_FloatingCast: | ||||||||
| 1698 | case CK_ObjCObjectLValueCast: | ||||||||
| 1699 | case CK_FloatingRealToComplex: | ||||||||
| 1700 | case CK_FloatingComplexToReal: | ||||||||
| 1701 | case CK_FloatingComplexCast: | ||||||||
| 1702 | case CK_FloatingComplexToIntegralComplex: | ||||||||
| 1703 | case CK_IntegralRealToComplex: | ||||||||
| 1704 | case CK_IntegralComplexToReal: | ||||||||
| 1705 | case CK_IntegralComplexCast: | ||||||||
| 1706 | case CK_IntegralComplexToFloatingComplex: | ||||||||
| 1707 | case CK_ARCProduceObject: | ||||||||
| 1708 | case CK_ARCConsumeObject: | ||||||||
| 1709 | case CK_ARCReclaimReturnedObject: | ||||||||
| 1710 | case CK_ARCExtendBlockObject: | ||||||||
| 1711 | case CK_ZeroToOCLOpaqueType: | ||||||||
| 1712 | case CK_IntToOCLSampler: | ||||||||
| 1713 | case CK_FloatingToFixedPoint: | ||||||||
| 1714 | case CK_FixedPointToFloating: | ||||||||
| 1715 | case CK_FixedPointCast: | ||||||||
| 1716 | case CK_FixedPointToIntegral: | ||||||||
| 1717 | case CK_IntegralToFixedPoint: | ||||||||
| 1718 | case CK_MatrixCast: | ||||||||
| 1719 | assert(!getType()->isBooleanType() && "unheralded conversion to bool")((!getType()->isBooleanType() && "unheralded conversion to bool" ) ? static_cast<void> (0) : __assert_fail ("!getType()->isBooleanType() && \"unheralded conversion to bool\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1719, __PRETTY_FUNCTION__)); | ||||||||
| 1720 | goto CheckNoBasePath; | ||||||||
| 1721 | |||||||||
| 1722 | case CK_Dependent: | ||||||||
| 1723 | case CK_LValueToRValue: | ||||||||
| 1724 | case CK_NoOp: | ||||||||
| 1725 | case CK_AtomicToNonAtomic: | ||||||||
| 1726 | case CK_NonAtomicToAtomic: | ||||||||
| 1727 | case CK_PointerToBoolean: | ||||||||
| 1728 | case CK_IntegralToBoolean: | ||||||||
| 1729 | case CK_FloatingToBoolean: | ||||||||
| 1730 | case CK_MemberPointerToBoolean: | ||||||||
| 1731 | case CK_FloatingComplexToBoolean: | ||||||||
| 1732 | case CK_IntegralComplexToBoolean: | ||||||||
| 1733 | case CK_LValueBitCast: // -> bool& | ||||||||
| 1734 | case CK_LValueToRValueBitCast: | ||||||||
| 1735 | case CK_UserDefinedConversion: // operator bool() | ||||||||
| 1736 | case CK_BuiltinFnToFnPtr: | ||||||||
| 1737 | case CK_FixedPointToBoolean: | ||||||||
| 1738 | CheckNoBasePath: | ||||||||
| 1739 | assert(path_empty() && "Cast kind should not have a base path!")((path_empty() && "Cast kind should not have a base path!" ) ? static_cast<void> (0) : __assert_fail ("path_empty() && \"Cast kind should not have a base path!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1739, __PRETTY_FUNCTION__)); | ||||||||
| 1740 | break; | ||||||||
| 1741 | } | ||||||||
| 1742 | return true; | ||||||||
| 1743 | } | ||||||||
| 1744 | |||||||||
| 1745 | const char *CastExpr::getCastKindName(CastKind CK) { | ||||||||
| 1746 | switch (CK) { | ||||||||
| 1747 | #define CAST_OPERATION(Name) case CK_##Name: return #Name; | ||||||||
| 1748 | #include "clang/AST/OperationKinds.def" | ||||||||
| 1749 | } | ||||||||
| 1750 | llvm_unreachable("Unhandled cast kind!")::llvm::llvm_unreachable_internal("Unhandled cast kind!", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1750); | ||||||||
| 1751 | } | ||||||||
| 1752 | |||||||||
| 1753 | namespace { | ||||||||
| 1754 | const Expr *skipImplicitTemporary(const Expr *E) { | ||||||||
| 1755 | // Skip through reference binding to temporary. | ||||||||
| 1756 | if (auto *Materialize = dyn_cast<MaterializeTemporaryExpr>(E)) | ||||||||
| 1757 | E = Materialize->getSubExpr(); | ||||||||
| 1758 | |||||||||
| 1759 | // Skip any temporary bindings; they're implicit. | ||||||||
| 1760 | if (auto *Binder = dyn_cast<CXXBindTemporaryExpr>(E)) | ||||||||
| 1761 | E = Binder->getSubExpr(); | ||||||||
| 1762 | |||||||||
| 1763 | return E; | ||||||||
| 1764 | } | ||||||||
| 1765 | } | ||||||||
| 1766 | |||||||||
| 1767 | Expr *CastExpr::getSubExprAsWritten() { | ||||||||
| 1768 | const Expr *SubExpr = nullptr; | ||||||||
| 1769 | const CastExpr *E = this; | ||||||||
| 1770 | do { | ||||||||
| 1771 | SubExpr = skipImplicitTemporary(E->getSubExpr()); | ||||||||
| 1772 | |||||||||
| 1773 | // Conversions by constructor and conversion functions have a | ||||||||
| 1774 | // subexpression describing the call; strip it off. | ||||||||
| 1775 | if (E->getCastKind() == CK_ConstructorConversion) | ||||||||
| 1776 | SubExpr = | ||||||||
| 1777 | skipImplicitTemporary(cast<CXXConstructExpr>(SubExpr->IgnoreImplicit())->getArg(0)); | ||||||||
| 1778 | else if (E->getCastKind() == CK_UserDefinedConversion) { | ||||||||
| 1779 | assert((isa<CXXMemberCallExpr>(SubExpr) ||(((isa<CXXMemberCallExpr>(SubExpr) || isa<BlockExpr> (SubExpr)) && "Unexpected SubExpr for CK_UserDefinedConversion." ) ? static_cast<void> (0) : __assert_fail ("(isa<CXXMemberCallExpr>(SubExpr) || isa<BlockExpr>(SubExpr)) && \"Unexpected SubExpr for CK_UserDefinedConversion.\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1781, __PRETTY_FUNCTION__)) | ||||||||
| 1780 | isa<BlockExpr>(SubExpr)) &&(((isa<CXXMemberCallExpr>(SubExpr) || isa<BlockExpr> (SubExpr)) && "Unexpected SubExpr for CK_UserDefinedConversion." ) ? static_cast<void> (0) : __assert_fail ("(isa<CXXMemberCallExpr>(SubExpr) || isa<BlockExpr>(SubExpr)) && \"Unexpected SubExpr for CK_UserDefinedConversion.\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1781, __PRETTY_FUNCTION__)) | ||||||||
| 1781 | "Unexpected SubExpr for CK_UserDefinedConversion.")(((isa<CXXMemberCallExpr>(SubExpr) || isa<BlockExpr> (SubExpr)) && "Unexpected SubExpr for CK_UserDefinedConversion." ) ? static_cast<void> (0) : __assert_fail ("(isa<CXXMemberCallExpr>(SubExpr) || isa<BlockExpr>(SubExpr)) && \"Unexpected SubExpr for CK_UserDefinedConversion.\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1781, __PRETTY_FUNCTION__)); | ||||||||
| 1782 | if (auto *MCE = dyn_cast<CXXMemberCallExpr>(SubExpr)) | ||||||||
| 1783 | SubExpr = MCE->getImplicitObjectArgument(); | ||||||||
| 1784 | } | ||||||||
| 1785 | |||||||||
| 1786 | // If the subexpression we're left with is an implicit cast, look | ||||||||
| 1787 | // through that, too. | ||||||||
| 1788 | } while ((E = dyn_cast<ImplicitCastExpr>(SubExpr))); | ||||||||
| 1789 | |||||||||
| 1790 | return const_cast<Expr*>(SubExpr); | ||||||||
| 1791 | } | ||||||||
| 1792 | |||||||||
| 1793 | NamedDecl *CastExpr::getConversionFunction() const { | ||||||||
| 1794 | const Expr *SubExpr = nullptr; | ||||||||
| 1795 | |||||||||
| 1796 | for (const CastExpr *E = this; E; E = dyn_cast<ImplicitCastExpr>(SubExpr)) { | ||||||||
| 1797 | SubExpr = skipImplicitTemporary(E->getSubExpr()); | ||||||||
| 1798 | |||||||||
| 1799 | if (E->getCastKind() == CK_ConstructorConversion) | ||||||||
| 1800 | return cast<CXXConstructExpr>(SubExpr)->getConstructor(); | ||||||||
| 1801 | |||||||||
| 1802 | if (E->getCastKind() == CK_UserDefinedConversion) { | ||||||||
| 1803 | if (auto *MCE = dyn_cast<CXXMemberCallExpr>(SubExpr)) | ||||||||
| 1804 | return MCE->getMethodDecl(); | ||||||||
| 1805 | } | ||||||||
| 1806 | } | ||||||||
| 1807 | |||||||||
| 1808 | return nullptr; | ||||||||
| 1809 | } | ||||||||
| 1810 | |||||||||
| 1811 | CXXBaseSpecifier **CastExpr::path_buffer() { | ||||||||
| 1812 | switch (getStmtClass()) { | ||||||||
| 1813 | #define ABSTRACT_STMT(x) | ||||||||
| 1814 | #define CASTEXPR(Type, Base) \ | ||||||||
| 1815 | case Stmt::Type##Class: \ | ||||||||
| 1816 | return static_cast<Type *>(this)->getTrailingObjects<CXXBaseSpecifier *>(); | ||||||||
| 1817 | #define STMT(Type, Base) | ||||||||
| 1818 | #include "clang/AST/StmtNodes.inc" | ||||||||
| 1819 | default: | ||||||||
| 1820 | llvm_unreachable("non-cast expressions not possible here")::llvm::llvm_unreachable_internal("non-cast expressions not possible here" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1820); | ||||||||
| 1821 | } | ||||||||
| 1822 | } | ||||||||
| 1823 | |||||||||
| 1824 | const FieldDecl *CastExpr::getTargetFieldForToUnionCast(QualType unionType, | ||||||||
| 1825 | QualType opType) { | ||||||||
| 1826 | auto RD = unionType->castAs<RecordType>()->getDecl(); | ||||||||
| 1827 | return getTargetFieldForToUnionCast(RD, opType); | ||||||||
| 1828 | } | ||||||||
| 1829 | |||||||||
| 1830 | const FieldDecl *CastExpr::getTargetFieldForToUnionCast(const RecordDecl *RD, | ||||||||
| 1831 | QualType OpType) { | ||||||||
| 1832 | auto &Ctx = RD->getASTContext(); | ||||||||
| 1833 | RecordDecl::field_iterator Field, FieldEnd; | ||||||||
| 1834 | for (Field = RD->field_begin(), FieldEnd = RD->field_end(); | ||||||||
| 1835 | Field != FieldEnd; ++Field) { | ||||||||
| 1836 | if (Ctx.hasSameUnqualifiedType(Field->getType(), OpType) && | ||||||||
| 1837 | !Field->isUnnamedBitfield()) { | ||||||||
| 1838 | return *Field; | ||||||||
| 1839 | } | ||||||||
| 1840 | } | ||||||||
| 1841 | return nullptr; | ||||||||
| 1842 | } | ||||||||
| 1843 | |||||||||
| 1844 | FPOptionsOverride *CastExpr::getTrailingFPFeatures() { | ||||||||
| 1845 | assert(hasStoredFPFeatures())((hasStoredFPFeatures()) ? static_cast<void> (0) : __assert_fail ("hasStoredFPFeatures()", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1845, __PRETTY_FUNCTION__)); | ||||||||
| 1846 | switch (getStmtClass()) { | ||||||||
| 1847 | case ImplicitCastExprClass: | ||||||||
| 1848 | return static_cast<ImplicitCastExpr *>(this) | ||||||||
| 1849 | ->getTrailingObjects<FPOptionsOverride>(); | ||||||||
| 1850 | case CStyleCastExprClass: | ||||||||
| 1851 | return static_cast<CStyleCastExpr *>(this) | ||||||||
| 1852 | ->getTrailingObjects<FPOptionsOverride>(); | ||||||||
| 1853 | case CXXFunctionalCastExprClass: | ||||||||
| 1854 | return static_cast<CXXFunctionalCastExpr *>(this) | ||||||||
| 1855 | ->getTrailingObjects<FPOptionsOverride>(); | ||||||||
| 1856 | case CXXStaticCastExprClass: | ||||||||
| 1857 | return static_cast<CXXStaticCastExpr *>(this) | ||||||||
| 1858 | ->getTrailingObjects<FPOptionsOverride>(); | ||||||||
| 1859 | default: | ||||||||
| 1860 | llvm_unreachable("Cast does not have FPFeatures")::llvm::llvm_unreachable_internal("Cast does not have FPFeatures" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1860); | ||||||||
| 1861 | } | ||||||||
| 1862 | } | ||||||||
| 1863 | |||||||||
| 1864 | ImplicitCastExpr *ImplicitCastExpr::Create(const ASTContext &C, QualType T, | ||||||||
| 1865 | CastKind Kind, Expr *Operand, | ||||||||
| 1866 | const CXXCastPath *BasePath, | ||||||||
| 1867 | ExprValueKind VK, | ||||||||
| 1868 | FPOptionsOverride FPO) { | ||||||||
| 1869 | unsigned PathSize = (BasePath ? BasePath->size() : 0); | ||||||||
| 1870 | void *Buffer = | ||||||||
| 1871 | C.Allocate(totalSizeToAlloc<CXXBaseSpecifier *, FPOptionsOverride>( | ||||||||
| 1872 | PathSize, FPO.requiresTrailingStorage())); | ||||||||
| 1873 | // Per C++ [conv.lval]p3, lvalue-to-rvalue conversions on class and | ||||||||
| 1874 | // std::nullptr_t have special semantics not captured by CK_LValueToRValue. | ||||||||
| 1875 | assert((Kind != CK_LValueToRValue ||(((Kind != CK_LValueToRValue || !(T->isNullPtrType() || T-> getAsCXXRecordDecl())) && "invalid type for lvalue-to-rvalue conversion" ) ? static_cast<void> (0) : __assert_fail ("(Kind != CK_LValueToRValue || !(T->isNullPtrType() || T->getAsCXXRecordDecl())) && \"invalid type for lvalue-to-rvalue conversion\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1877, __PRETTY_FUNCTION__)) | ||||||||
| 1876 | !(T->isNullPtrType() || T->getAsCXXRecordDecl())) &&(((Kind != CK_LValueToRValue || !(T->isNullPtrType() || T-> getAsCXXRecordDecl())) && "invalid type for lvalue-to-rvalue conversion" ) ? static_cast<void> (0) : __assert_fail ("(Kind != CK_LValueToRValue || !(T->isNullPtrType() || T->getAsCXXRecordDecl())) && \"invalid type for lvalue-to-rvalue conversion\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1877, __PRETTY_FUNCTION__)) | ||||||||
| 1877 | "invalid type for lvalue-to-rvalue conversion")(((Kind != CK_LValueToRValue || !(T->isNullPtrType() || T-> getAsCXXRecordDecl())) && "invalid type for lvalue-to-rvalue conversion" ) ? static_cast<void> (0) : __assert_fail ("(Kind != CK_LValueToRValue || !(T->isNullPtrType() || T->getAsCXXRecordDecl())) && \"invalid type for lvalue-to-rvalue conversion\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1877, __PRETTY_FUNCTION__)); | ||||||||
| 1878 | ImplicitCastExpr *E = | ||||||||
| 1879 | new (Buffer) ImplicitCastExpr(T, Kind, Operand, PathSize, FPO, VK); | ||||||||
| 1880 | if (PathSize) | ||||||||
| 1881 | std::uninitialized_copy_n(BasePath->data(), BasePath->size(), | ||||||||
| 1882 | E->getTrailingObjects<CXXBaseSpecifier *>()); | ||||||||
| 1883 | return E; | ||||||||
| 1884 | } | ||||||||
| 1885 | |||||||||
| 1886 | ImplicitCastExpr *ImplicitCastExpr::CreateEmpty(const ASTContext &C, | ||||||||
| 1887 | unsigned PathSize, | ||||||||
| 1888 | bool HasFPFeatures) { | ||||||||
| 1889 | void *Buffer = | ||||||||
| 1890 | C.Allocate(totalSizeToAlloc<CXXBaseSpecifier *, FPOptionsOverride>( | ||||||||
| 1891 | PathSize, HasFPFeatures)); | ||||||||
| 1892 | return new (Buffer) ImplicitCastExpr(EmptyShell(), PathSize, HasFPFeatures); | ||||||||
| 1893 | } | ||||||||
| 1894 | |||||||||
| 1895 | CStyleCastExpr *CStyleCastExpr::Create(const ASTContext &C, QualType T, | ||||||||
| 1896 | ExprValueKind VK, CastKind K, Expr *Op, | ||||||||
| 1897 | const CXXCastPath *BasePath, | ||||||||
| 1898 | FPOptionsOverride FPO, | ||||||||
| 1899 | TypeSourceInfo *WrittenTy, | ||||||||
| 1900 | SourceLocation L, SourceLocation R) { | ||||||||
| 1901 | unsigned PathSize = (BasePath ? BasePath->size() : 0); | ||||||||
| 1902 | void *Buffer = | ||||||||
| 1903 | C.Allocate(totalSizeToAlloc<CXXBaseSpecifier *, FPOptionsOverride>( | ||||||||
| 1904 | PathSize, FPO.requiresTrailingStorage())); | ||||||||
| 1905 | CStyleCastExpr *E = | ||||||||
| 1906 | new (Buffer) CStyleCastExpr(T, VK, K, Op, PathSize, FPO, WrittenTy, L, R); | ||||||||
| 1907 | if (PathSize) | ||||||||
| 1908 | std::uninitialized_copy_n(BasePath->data(), BasePath->size(), | ||||||||
| 1909 | E->getTrailingObjects<CXXBaseSpecifier *>()); | ||||||||
| 1910 | return E; | ||||||||
| 1911 | } | ||||||||
| 1912 | |||||||||
| 1913 | CStyleCastExpr *CStyleCastExpr::CreateEmpty(const ASTContext &C, | ||||||||
| 1914 | unsigned PathSize, | ||||||||
| 1915 | bool HasFPFeatures) { | ||||||||
| 1916 | void *Buffer = | ||||||||
| 1917 | C.Allocate(totalSizeToAlloc<CXXBaseSpecifier *, FPOptionsOverride>( | ||||||||
| 1918 | PathSize, HasFPFeatures)); | ||||||||
| 1919 | return new (Buffer) CStyleCastExpr(EmptyShell(), PathSize, HasFPFeatures); | ||||||||
| 1920 | } | ||||||||
| 1921 | |||||||||
| 1922 | /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it | ||||||||
| 1923 | /// corresponds to, e.g. "<<=". | ||||||||
| 1924 | StringRef BinaryOperator::getOpcodeStr(Opcode Op) { | ||||||||
| 1925 | switch (Op) { | ||||||||
| 1926 | #define BINARY_OPERATION(Name, Spelling) case BO_##Name: return Spelling; | ||||||||
| 1927 | #include "clang/AST/OperationKinds.def" | ||||||||
| 1928 | } | ||||||||
| 1929 | llvm_unreachable("Invalid OpCode!")::llvm::llvm_unreachable_internal("Invalid OpCode!", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1929); | ||||||||
| 1930 | } | ||||||||
| 1931 | |||||||||
| 1932 | BinaryOperatorKind | ||||||||
| 1933 | BinaryOperator::getOverloadedOpcode(OverloadedOperatorKind OO) { | ||||||||
| 1934 | switch (OO) { | ||||||||
| 1935 | default: llvm_unreachable("Not an overloadable binary operator")::llvm::llvm_unreachable_internal("Not an overloadable binary operator" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 1935); | ||||||||
| 1936 | case OO_Plus: return BO_Add; | ||||||||
| 1937 | case OO_Minus: return BO_Sub; | ||||||||
| 1938 | case OO_Star: return BO_Mul; | ||||||||
| 1939 | case OO_Slash: return BO_Div; | ||||||||
| 1940 | case OO_Percent: return BO_Rem; | ||||||||
| 1941 | case OO_Caret: return BO_Xor; | ||||||||
| 1942 | case OO_Amp: return BO_And; | ||||||||
| 1943 | case OO_Pipe: return BO_Or; | ||||||||
| 1944 | case OO_Equal: return BO_Assign; | ||||||||
| 1945 | case OO_Spaceship: return BO_Cmp; | ||||||||
| 1946 | case OO_Less: return BO_LT; | ||||||||
| 1947 | case OO_Greater: return BO_GT; | ||||||||
| 1948 | case OO_PlusEqual: return BO_AddAssign; | ||||||||
| 1949 | case OO_MinusEqual: return BO_SubAssign; | ||||||||
| 1950 | case OO_StarEqual: return BO_MulAssign; | ||||||||
| 1951 | case OO_SlashEqual: return BO_DivAssign; | ||||||||
| 1952 | case OO_PercentEqual: return BO_RemAssign; | ||||||||
| 1953 | case OO_CaretEqual: return BO_XorAssign; | ||||||||
| 1954 | case OO_AmpEqual: return BO_AndAssign; | ||||||||
| 1955 | case OO_PipeEqual: return BO_OrAssign; | ||||||||
| 1956 | case OO_LessLess: return BO_Shl; | ||||||||
| 1957 | case OO_GreaterGreater: return BO_Shr; | ||||||||
| 1958 | case OO_LessLessEqual: return BO_ShlAssign; | ||||||||
| 1959 | case OO_GreaterGreaterEqual: return BO_ShrAssign; | ||||||||
| 1960 | case OO_EqualEqual: return BO_EQ; | ||||||||
| 1961 | case OO_ExclaimEqual: return BO_NE; | ||||||||
| 1962 | case OO_LessEqual: return BO_LE; | ||||||||
| 1963 | case OO_GreaterEqual: return BO_GE; | ||||||||
| 1964 | case OO_AmpAmp: return BO_LAnd; | ||||||||
| 1965 | case OO_PipePipe: return BO_LOr; | ||||||||
| 1966 | case OO_Comma: return BO_Comma; | ||||||||
| 1967 | case OO_ArrowStar: return BO_PtrMemI; | ||||||||
| 1968 | } | ||||||||
| 1969 | } | ||||||||
| 1970 | |||||||||
| 1971 | OverloadedOperatorKind BinaryOperator::getOverloadedOperator(Opcode Opc) { | ||||||||
| 1972 | static const OverloadedOperatorKind OverOps[] = { | ||||||||
| 1973 | /* .* Cannot be overloaded */OO_None, OO_ArrowStar, | ||||||||
| 1974 | OO_Star, OO_Slash, OO_Percent, | ||||||||
| 1975 | OO_Plus, OO_Minus, | ||||||||
| 1976 | OO_LessLess, OO_GreaterGreater, | ||||||||
| 1977 | OO_Spaceship, | ||||||||
| 1978 | OO_Less, OO_Greater, OO_LessEqual, OO_GreaterEqual, | ||||||||
| 1979 | OO_EqualEqual, OO_ExclaimEqual, | ||||||||
| 1980 | OO_Amp, | ||||||||
| 1981 | OO_Caret, | ||||||||
| 1982 | OO_Pipe, | ||||||||
| 1983 | OO_AmpAmp, | ||||||||
| 1984 | OO_PipePipe, | ||||||||
| 1985 | OO_Equal, OO_StarEqual, | ||||||||
| 1986 | OO_SlashEqual, OO_PercentEqual, | ||||||||
| 1987 | OO_PlusEqual, OO_MinusEqual, | ||||||||
| 1988 | OO_LessLessEqual, OO_GreaterGreaterEqual, | ||||||||
| 1989 | OO_AmpEqual, OO_CaretEqual, | ||||||||
| 1990 | OO_PipeEqual, | ||||||||
| 1991 | OO_Comma | ||||||||
| 1992 | }; | ||||||||
| 1993 | return OverOps[Opc]; | ||||||||
| 1994 | } | ||||||||
| 1995 | |||||||||
| 1996 | bool BinaryOperator::isNullPointerArithmeticExtension(ASTContext &Ctx, | ||||||||
| 1997 | Opcode Opc, | ||||||||
| 1998 | Expr *LHS, Expr *RHS) { | ||||||||
| 1999 | if (Opc != BO_Add) | ||||||||
| 2000 | return false; | ||||||||
| 2001 | |||||||||
| 2002 | // Check that we have one pointer and one integer operand. | ||||||||
| 2003 | Expr *PExp; | ||||||||
| 2004 | if (LHS->getType()->isPointerType()) { | ||||||||
| 2005 | if (!RHS->getType()->isIntegerType()) | ||||||||
| 2006 | return false; | ||||||||
| 2007 | PExp = LHS; | ||||||||
| 2008 | } else if (RHS->getType()->isPointerType()) { | ||||||||
| 2009 | if (!LHS->getType()->isIntegerType()) | ||||||||
| 2010 | return false; | ||||||||
| 2011 | PExp = RHS; | ||||||||
| 2012 | } else { | ||||||||
| 2013 | return false; | ||||||||
| 2014 | } | ||||||||
| 2015 | |||||||||
| 2016 | // Check that the pointer is a nullptr. | ||||||||
| 2017 | if (!PExp->IgnoreParenCasts() | ||||||||
| 2018 | ->isNullPointerConstant(Ctx, Expr::NPC_ValueDependentIsNotNull)) | ||||||||
| 2019 | return false; | ||||||||
| 2020 | |||||||||
| 2021 | // Check that the pointee type is char-sized. | ||||||||
| 2022 | const PointerType *PTy = PExp->getType()->getAs<PointerType>(); | ||||||||
| 2023 | if (!PTy || !PTy->getPointeeType()->isCharType()) | ||||||||
| 2024 | return false; | ||||||||
| 2025 | |||||||||
| 2026 | return true; | ||||||||
| 2027 | } | ||||||||
| 2028 | |||||||||
| 2029 | static QualType getDecayedSourceLocExprType(const ASTContext &Ctx, | ||||||||
| 2030 | SourceLocExpr::IdentKind Kind) { | ||||||||
| 2031 | switch (Kind) { | ||||||||
| 2032 | case SourceLocExpr::File: | ||||||||
| 2033 | case SourceLocExpr::Function: { | ||||||||
| 2034 | QualType ArrTy = Ctx.getStringLiteralArrayType(Ctx.CharTy, 0); | ||||||||
| 2035 | return Ctx.getPointerType(ArrTy->getAsArrayTypeUnsafe()->getElementType()); | ||||||||
| 2036 | } | ||||||||
| 2037 | case SourceLocExpr::Line: | ||||||||
| 2038 | case SourceLocExpr::Column: | ||||||||
| 2039 | return Ctx.UnsignedIntTy; | ||||||||
| 2040 | } | ||||||||
| 2041 | llvm_unreachable("unhandled case")::llvm::llvm_unreachable_internal("unhandled case", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 2041); | ||||||||
| 2042 | } | ||||||||
| 2043 | |||||||||
| 2044 | SourceLocExpr::SourceLocExpr(const ASTContext &Ctx, IdentKind Kind, | ||||||||
| 2045 | SourceLocation BLoc, SourceLocation RParenLoc, | ||||||||
| 2046 | DeclContext *ParentContext) | ||||||||
| 2047 | : Expr(SourceLocExprClass, getDecayedSourceLocExprType(Ctx, Kind), | ||||||||
| 2048 | VK_RValue, OK_Ordinary), | ||||||||
| 2049 | BuiltinLoc(BLoc), RParenLoc(RParenLoc), ParentContext(ParentContext) { | ||||||||
| 2050 | SourceLocExprBits.Kind = Kind; | ||||||||
| 2051 | setDependence(ExprDependence::None); | ||||||||
| 2052 | } | ||||||||
| 2053 | |||||||||
| 2054 | StringRef SourceLocExpr::getBuiltinStr() const { | ||||||||
| 2055 | switch (getIdentKind()) { | ||||||||
| 2056 | case File: | ||||||||
| 2057 | return "__builtin_FILE"; | ||||||||
| 2058 | case Function: | ||||||||
| 2059 | return "__builtin_FUNCTION"; | ||||||||
| 2060 | case Line: | ||||||||
| 2061 | return "__builtin_LINE"; | ||||||||
| 2062 | case Column: | ||||||||
| 2063 | return "__builtin_COLUMN"; | ||||||||
| 2064 | } | ||||||||
| 2065 | llvm_unreachable("unexpected IdentKind!")::llvm::llvm_unreachable_internal("unexpected IdentKind!", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 2065); | ||||||||
| 2066 | } | ||||||||
| 2067 | |||||||||
| 2068 | APValue SourceLocExpr::EvaluateInContext(const ASTContext &Ctx, | ||||||||
| 2069 | const Expr *DefaultExpr) const { | ||||||||
| 2070 | SourceLocation Loc; | ||||||||
| 2071 | const DeclContext *Context; | ||||||||
| 2072 | |||||||||
| 2073 | std::tie(Loc, | ||||||||
| 2074 | Context) = [&]() -> std::pair<SourceLocation, const DeclContext *> { | ||||||||
| 2075 | if (auto *DIE = dyn_cast_or_null<CXXDefaultInitExpr>(DefaultExpr)) | ||||||||
| 2076 | return {DIE->getUsedLocation(), DIE->getUsedContext()}; | ||||||||
| 2077 | if (auto *DAE = dyn_cast_or_null<CXXDefaultArgExpr>(DefaultExpr)) | ||||||||
| 2078 | return {DAE->getUsedLocation(), DAE->getUsedContext()}; | ||||||||
| 2079 | return {this->getLocation(), this->getParentContext()}; | ||||||||
| 2080 | }(); | ||||||||
| 2081 | |||||||||
| 2082 | PresumedLoc PLoc = Ctx.getSourceManager().getPresumedLoc( | ||||||||
| 2083 | Ctx.getSourceManager().getExpansionRange(Loc).getEnd()); | ||||||||
| 2084 | |||||||||
| 2085 | auto MakeStringLiteral = [&](StringRef Tmp) { | ||||||||
| 2086 | using LValuePathEntry = APValue::LValuePathEntry; | ||||||||
| 2087 | StringLiteral *Res = Ctx.getPredefinedStringLiteralFromCache(Tmp); | ||||||||
| 2088 | // Decay the string to a pointer to the first character. | ||||||||
| 2089 | LValuePathEntry Path[1] = {LValuePathEntry::ArrayIndex(0)}; | ||||||||
| 2090 | return APValue(Res, CharUnits::Zero(), Path, /*OnePastTheEnd=*/false); | ||||||||
| 2091 | }; | ||||||||
| 2092 | |||||||||
| 2093 | switch (getIdentKind()) { | ||||||||
| 2094 | case SourceLocExpr::File: | ||||||||
| 2095 | return MakeStringLiteral(PLoc.getFilename()); | ||||||||
| 2096 | case SourceLocExpr::Function: { | ||||||||
| 2097 | const Decl *CurDecl = dyn_cast_or_null<Decl>(Context); | ||||||||
| 2098 | return MakeStringLiteral( | ||||||||
| 2099 | CurDecl ? PredefinedExpr::ComputeName(PredefinedExpr::Function, CurDecl) | ||||||||
| 2100 | : std::string("")); | ||||||||
| 2101 | } | ||||||||
| 2102 | case SourceLocExpr::Line: | ||||||||
| 2103 | case SourceLocExpr::Column: { | ||||||||
| 2104 | llvm::APSInt IntVal(Ctx.getIntWidth(Ctx.UnsignedIntTy), | ||||||||
| 2105 | /*isUnsigned=*/true); | ||||||||
| 2106 | IntVal = getIdentKind() == SourceLocExpr::Line ? PLoc.getLine() | ||||||||
| 2107 | : PLoc.getColumn(); | ||||||||
| 2108 | return APValue(IntVal); | ||||||||
| 2109 | } | ||||||||
| 2110 | } | ||||||||
| 2111 | llvm_unreachable("unhandled case")::llvm::llvm_unreachable_internal("unhandled case", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 2111); | ||||||||
| 2112 | } | ||||||||
| 2113 | |||||||||
| 2114 | InitListExpr::InitListExpr(const ASTContext &C, SourceLocation lbraceloc, | ||||||||
| 2115 | ArrayRef<Expr *> initExprs, SourceLocation rbraceloc) | ||||||||
| 2116 | : Expr(InitListExprClass, QualType(), VK_RValue, OK_Ordinary), | ||||||||
| 2117 | InitExprs(C, initExprs.size()), LBraceLoc(lbraceloc), | ||||||||
| 2118 | RBraceLoc(rbraceloc), AltForm(nullptr, true) { | ||||||||
| 2119 | sawArrayRangeDesignator(false); | ||||||||
| 2120 | InitExprs.insert(C, InitExprs.end(), initExprs.begin(), initExprs.end()); | ||||||||
| 2121 | |||||||||
| 2122 | setDependence(computeDependence(this)); | ||||||||
| 2123 | } | ||||||||
| 2124 | |||||||||
| 2125 | void InitListExpr::reserveInits(const ASTContext &C, unsigned NumInits) { | ||||||||
| 2126 | if (NumInits > InitExprs.size()) | ||||||||
| 2127 | InitExprs.reserve(C, NumInits); | ||||||||
| 2128 | } | ||||||||
| 2129 | |||||||||
| 2130 | void InitListExpr::resizeInits(const ASTContext &C, unsigned NumInits) { | ||||||||
| 2131 | InitExprs.resize(C, NumInits, nullptr); | ||||||||
| 2132 | } | ||||||||
| 2133 | |||||||||
| 2134 | Expr *InitListExpr::updateInit(const ASTContext &C, unsigned Init, Expr *expr) { | ||||||||
| 2135 | if (Init >= InitExprs.size()) { | ||||||||
| 2136 | InitExprs.insert(C, InitExprs.end(), Init - InitExprs.size() + 1, nullptr); | ||||||||
| 2137 | setInit(Init, expr); | ||||||||
| 2138 | return nullptr; | ||||||||
| 2139 | } | ||||||||
| 2140 | |||||||||
| 2141 | Expr *Result = cast_or_null<Expr>(InitExprs[Init]); | ||||||||
| 2142 | setInit(Init, expr); | ||||||||
| 2143 | return Result; | ||||||||
| 2144 | } | ||||||||
| 2145 | |||||||||
| 2146 | void InitListExpr::setArrayFiller(Expr *filler) { | ||||||||
| 2147 | assert(!hasArrayFiller() && "Filler already set!")((!hasArrayFiller() && "Filler already set!") ? static_cast <void> (0) : __assert_fail ("!hasArrayFiller() && \"Filler already set!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 2147, __PRETTY_FUNCTION__)); | ||||||||
| 2148 | ArrayFillerOrUnionFieldInit = filler; | ||||||||
| 2149 | // Fill out any "holes" in the array due to designated initializers. | ||||||||
| 2150 | Expr **inits = getInits(); | ||||||||
| 2151 | for (unsigned i = 0, e = getNumInits(); i != e; ++i) | ||||||||
| 2152 | if (inits[i] == nullptr) | ||||||||
| 2153 | inits[i] = filler; | ||||||||
| 2154 | } | ||||||||
| 2155 | |||||||||
| 2156 | bool InitListExpr::isStringLiteralInit() const { | ||||||||
| 2157 | if (getNumInits() != 1) | ||||||||
| 2158 | return false; | ||||||||
| 2159 | const ArrayType *AT = getType()->getAsArrayTypeUnsafe(); | ||||||||
| 2160 | if (!AT || !AT->getElementType()->isIntegerType()) | ||||||||
| 2161 | return false; | ||||||||
| 2162 | // It is possible for getInit() to return null. | ||||||||
| 2163 | const Expr *Init = getInit(0); | ||||||||
| 2164 | if (!Init) | ||||||||
| 2165 | return false; | ||||||||
| 2166 | Init = Init->IgnoreParens(); | ||||||||
| 2167 | return isa<StringLiteral>(Init) || isa<ObjCEncodeExpr>(Init); | ||||||||
| 2168 | } | ||||||||
| 2169 | |||||||||
| 2170 | bool InitListExpr::isTransparent() const { | ||||||||
| 2171 | assert(isSemanticForm() && "syntactic form never semantically transparent")((isSemanticForm() && "syntactic form never semantically transparent" ) ? static_cast<void> (0) : __assert_fail ("isSemanticForm() && \"syntactic form never semantically transparent\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 2171, __PRETTY_FUNCTION__)); | ||||||||
| 2172 | |||||||||
| 2173 | // A glvalue InitListExpr is always just sugar. | ||||||||
| 2174 | if (isGLValue()) { | ||||||||
| 2175 | assert(getNumInits() == 1 && "multiple inits in glvalue init list")((getNumInits() == 1 && "multiple inits in glvalue init list" ) ? static_cast<void> (0) : __assert_fail ("getNumInits() == 1 && \"multiple inits in glvalue init list\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 2175, __PRETTY_FUNCTION__)); | ||||||||
| 2176 | return true; | ||||||||
| 2177 | } | ||||||||
| 2178 | |||||||||
| 2179 | // Otherwise, we're sugar if and only if we have exactly one initializer that | ||||||||
| 2180 | // is of the same type. | ||||||||
| 2181 | if (getNumInits() != 1 || !getInit(0)) | ||||||||
| 2182 | return false; | ||||||||
| 2183 | |||||||||
| 2184 | // Don't confuse aggregate initialization of a struct X { X &x; }; with a | ||||||||
| 2185 | // transparent struct copy. | ||||||||
| 2186 | if (!getInit(0)->isRValue() && getType()->isRecordType()) | ||||||||
| 2187 | return false; | ||||||||
| 2188 | |||||||||
| 2189 | return getType().getCanonicalType() == | ||||||||
| 2190 | getInit(0)->getType().getCanonicalType(); | ||||||||
| 2191 | } | ||||||||
| 2192 | |||||||||
| 2193 | bool InitListExpr::isIdiomaticZeroInitializer(const LangOptions &LangOpts) const { | ||||||||
| 2194 | assert(isSyntacticForm() && "only test syntactic form as zero initializer")((isSyntacticForm() && "only test syntactic form as zero initializer" ) ? static_cast<void> (0) : __assert_fail ("isSyntacticForm() && \"only test syntactic form as zero initializer\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 2194, __PRETTY_FUNCTION__)); | ||||||||
| 2195 | |||||||||
| 2196 | if (LangOpts.CPlusPlus || getNumInits() != 1 || !getInit(0)) { | ||||||||
| 2197 | return false; | ||||||||
| 2198 | } | ||||||||
| 2199 | |||||||||
| 2200 | const IntegerLiteral *Lit = dyn_cast<IntegerLiteral>(getInit(0)->IgnoreImplicit()); | ||||||||
| 2201 | return Lit && Lit->getValue() == 0; | ||||||||
| 2202 | } | ||||||||
| 2203 | |||||||||
| 2204 | SourceLocation InitListExpr::getBeginLoc() const { | ||||||||
| 2205 | if (InitListExpr *SyntacticForm = getSyntacticForm()) | ||||||||
| 2206 | return SyntacticForm->getBeginLoc(); | ||||||||
| 2207 | SourceLocation Beg = LBraceLoc; | ||||||||
| 2208 | if (Beg.isInvalid()) { | ||||||||
| 2209 | // Find the first non-null initializer. | ||||||||
| 2210 | for (InitExprsTy::const_iterator I = InitExprs.begin(), | ||||||||
| 2211 | E = InitExprs.end(); | ||||||||
| 2212 | I != E; ++I) { | ||||||||
| 2213 | if (Stmt *S = *I) { | ||||||||
| 2214 | Beg = S->getBeginLoc(); | ||||||||
| 2215 | break; | ||||||||
| 2216 | } | ||||||||
| 2217 | } | ||||||||
| 2218 | } | ||||||||
| 2219 | return Beg; | ||||||||
| 2220 | } | ||||||||
| 2221 | |||||||||
| 2222 | SourceLocation InitListExpr::getEndLoc() const { | ||||||||
| 2223 | if (InitListExpr *SyntacticForm = getSyntacticForm()) | ||||||||
| 2224 | return SyntacticForm->getEndLoc(); | ||||||||
| 2225 | SourceLocation End = RBraceLoc; | ||||||||
| 2226 | if (End.isInvalid()) { | ||||||||
| 2227 | // Find the first non-null initializer from the end. | ||||||||
| 2228 | for (InitExprsTy::const_reverse_iterator I = InitExprs.rbegin(), | ||||||||
| 2229 | E = InitExprs.rend(); | ||||||||
| 2230 | I != E; ++I) { | ||||||||
| 2231 | if (Stmt *S = *I) { | ||||||||
| 2232 | End = S->getEndLoc(); | ||||||||
| 2233 | break; | ||||||||
| 2234 | } | ||||||||
| 2235 | } | ||||||||
| 2236 | } | ||||||||
| 2237 | return End; | ||||||||
| 2238 | } | ||||||||
| 2239 | |||||||||
| 2240 | /// getFunctionType - Return the underlying function type for this block. | ||||||||
| 2241 | /// | ||||||||
| 2242 | const FunctionProtoType *BlockExpr::getFunctionType() const { | ||||||||
| 2243 | // The block pointer is never sugared, but the function type might be. | ||||||||
| 2244 | return cast<BlockPointerType>(getType()) | ||||||||
| 2245 | ->getPointeeType()->castAs<FunctionProtoType>(); | ||||||||
| 2246 | } | ||||||||
| 2247 | |||||||||
| 2248 | SourceLocation BlockExpr::getCaretLocation() const { | ||||||||
| 2249 | return TheBlock->getCaretLocation(); | ||||||||
| 2250 | } | ||||||||
| 2251 | const Stmt *BlockExpr::getBody() const { | ||||||||
| 2252 | return TheBlock->getBody(); | ||||||||
| 2253 | } | ||||||||
| 2254 | Stmt *BlockExpr::getBody() { | ||||||||
| 2255 | return TheBlock->getBody(); | ||||||||
| 2256 | } | ||||||||
| 2257 | |||||||||
| 2258 | |||||||||
| 2259 | //===----------------------------------------------------------------------===// | ||||||||
| 2260 | // Generic Expression Routines | ||||||||
| 2261 | //===----------------------------------------------------------------------===// | ||||||||
| 2262 | |||||||||
| 2263 | bool Expr::isReadIfDiscardedInCPlusPlus11() const { | ||||||||
| 2264 | // In C++11, discarded-value expressions of a certain form are special, | ||||||||
| 2265 | // according to [expr]p10: | ||||||||
| 2266 | // The lvalue-to-rvalue conversion (4.1) is applied only if the | ||||||||
| 2267 | // expression is an lvalue of volatile-qualified type and it has | ||||||||
| 2268 | // one of the following forms: | ||||||||
| 2269 | if (!isGLValue() || !getType().isVolatileQualified()) | ||||||||
| 2270 | return false; | ||||||||
| 2271 | |||||||||
| 2272 | const Expr *E = IgnoreParens(); | ||||||||
| 2273 | |||||||||
| 2274 | // - id-expression (5.1.1), | ||||||||
| 2275 | if (isa<DeclRefExpr>(E)) | ||||||||
| 2276 | return true; | ||||||||
| 2277 | |||||||||
| 2278 | // - subscripting (5.2.1), | ||||||||
| 2279 | if (isa<ArraySubscriptExpr>(E)) | ||||||||
| 2280 | return true; | ||||||||
| 2281 | |||||||||
| 2282 | // - class member access (5.2.5), | ||||||||
| 2283 | if (isa<MemberExpr>(E)) | ||||||||
| 2284 | return true; | ||||||||
| 2285 | |||||||||
| 2286 | // - indirection (5.3.1), | ||||||||
| 2287 | if (auto *UO = dyn_cast<UnaryOperator>(E)) | ||||||||
| 2288 | if (UO->getOpcode() == UO_Deref) | ||||||||
| 2289 | return true; | ||||||||
| 2290 | |||||||||
| 2291 | if (auto *BO = dyn_cast<BinaryOperator>(E)) { | ||||||||
| 2292 | // - pointer-to-member operation (5.5), | ||||||||
| 2293 | if (BO->isPtrMemOp()) | ||||||||
| 2294 | return true; | ||||||||
| 2295 | |||||||||
| 2296 | // - comma expression (5.18) where the right operand is one of the above. | ||||||||
| 2297 | if (BO->getOpcode() == BO_Comma) | ||||||||
| 2298 | return BO->getRHS()->isReadIfDiscardedInCPlusPlus11(); | ||||||||
| 2299 | } | ||||||||
| 2300 | |||||||||
| 2301 | // - conditional expression (5.16) where both the second and the third | ||||||||
| 2302 | // operands are one of the above, or | ||||||||
| 2303 | if (auto *CO = dyn_cast<ConditionalOperator>(E)) | ||||||||
| 2304 | return CO->getTrueExpr()->isReadIfDiscardedInCPlusPlus11() && | ||||||||
| 2305 | CO->getFalseExpr()->isReadIfDiscardedInCPlusPlus11(); | ||||||||
| 2306 | // The related edge case of "*x ?: *x". | ||||||||
| 2307 | if (auto *BCO = | ||||||||
| 2308 | dyn_cast<BinaryConditionalOperator>(E)) { | ||||||||
| 2309 | if (auto *OVE = dyn_cast<OpaqueValueExpr>(BCO->getTrueExpr())) | ||||||||
| 2310 | return OVE->getSourceExpr()->isReadIfDiscardedInCPlusPlus11() && | ||||||||
| 2311 | BCO->getFalseExpr()->isReadIfDiscardedInCPlusPlus11(); | ||||||||
| 2312 | } | ||||||||
| 2313 | |||||||||
| 2314 | // Objective-C++ extensions to the rule. | ||||||||
| 2315 | if (isa<PseudoObjectExpr>(E) || isa<ObjCIvarRefExpr>(E)) | ||||||||
| 2316 | return true; | ||||||||
| 2317 | |||||||||
| 2318 | return false; | ||||||||
| 2319 | } | ||||||||
| 2320 | |||||||||
| 2321 | /// isUnusedResultAWarning - Return true if this immediate expression should | ||||||||
| 2322 | /// be warned about if the result is unused. If so, fill in Loc and Ranges | ||||||||
| 2323 | /// with location to warn on and the source range[s] to report with the | ||||||||
| 2324 | /// warning. | ||||||||
| 2325 | bool Expr::isUnusedResultAWarning(const Expr *&WarnE, SourceLocation &Loc, | ||||||||
| 2326 | SourceRange &R1, SourceRange &R2, | ||||||||
| 2327 | ASTContext &Ctx) const { | ||||||||
| 2328 | // Don't warn if the expr is type dependent. The type could end up | ||||||||
| 2329 | // instantiating to void. | ||||||||
| 2330 | if (isTypeDependent()) | ||||||||
| 2331 | return false; | ||||||||
| 2332 | |||||||||
| 2333 | switch (getStmtClass()) { | ||||||||
| 2334 | default: | ||||||||
| 2335 | if (getType()->isVoidType()) | ||||||||
| 2336 | return false; | ||||||||
| 2337 | WarnE = this; | ||||||||
| 2338 | Loc = getExprLoc(); | ||||||||
| 2339 | R1 = getSourceRange(); | ||||||||
| 2340 | return true; | ||||||||
| 2341 | case ParenExprClass: | ||||||||
| 2342 | return cast<ParenExpr>(this)->getSubExpr()-> | ||||||||
| 2343 | isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx); | ||||||||
| 2344 | case GenericSelectionExprClass: | ||||||||
| 2345 | return cast<GenericSelectionExpr>(this)->getResultExpr()-> | ||||||||
| 2346 | isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx); | ||||||||
| 2347 | case CoawaitExprClass: | ||||||||
| 2348 | case CoyieldExprClass: | ||||||||
| 2349 | return cast<CoroutineSuspendExpr>(this)->getResumeExpr()-> | ||||||||
| 2350 | isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx); | ||||||||
| 2351 | case ChooseExprClass: | ||||||||
| 2352 | return cast<ChooseExpr>(this)->getChosenSubExpr()-> | ||||||||
| 2353 | isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx); | ||||||||
| 2354 | case UnaryOperatorClass: { | ||||||||
| 2355 | const UnaryOperator *UO = cast<UnaryOperator>(this); | ||||||||
| 2356 | |||||||||
| 2357 | switch (UO->getOpcode()) { | ||||||||
| 2358 | case UO_Plus: | ||||||||
| 2359 | case UO_Minus: | ||||||||
| 2360 | case UO_AddrOf: | ||||||||
| 2361 | case UO_Not: | ||||||||
| 2362 | case UO_LNot: | ||||||||
| 2363 | case UO_Deref: | ||||||||
| 2364 | break; | ||||||||
| 2365 | case UO_Coawait: | ||||||||
| 2366 | // This is just the 'operator co_await' call inside the guts of a | ||||||||
| 2367 | // dependent co_await call. | ||||||||
| 2368 | case UO_PostInc: | ||||||||
| 2369 | case UO_PostDec: | ||||||||
| 2370 | case UO_PreInc: | ||||||||
| 2371 | case UO_PreDec: // ++/-- | ||||||||
| 2372 | return false; // Not a warning. | ||||||||
| 2373 | case UO_Real: | ||||||||
| 2374 | case UO_Imag: | ||||||||
| 2375 | // accessing a piece of a volatile complex is a side-effect. | ||||||||
| 2376 | if (Ctx.getCanonicalType(UO->getSubExpr()->getType()) | ||||||||
| 2377 | .isVolatileQualified()) | ||||||||
| 2378 | return false; | ||||||||
| 2379 | break; | ||||||||
| 2380 | case UO_Extension: | ||||||||
| 2381 | return UO->getSubExpr()->isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx); | ||||||||
| 2382 | } | ||||||||
| 2383 | WarnE = this; | ||||||||
| 2384 | Loc = UO->getOperatorLoc(); | ||||||||
| 2385 | R1 = UO->getSubExpr()->getSourceRange(); | ||||||||
| 2386 | return true; | ||||||||
| 2387 | } | ||||||||
| 2388 | case BinaryOperatorClass: { | ||||||||
| 2389 | const BinaryOperator *BO = cast<BinaryOperator>(this); | ||||||||
| 2390 | switch (BO->getOpcode()) { | ||||||||
| 2391 | default: | ||||||||
| 2392 | break; | ||||||||
| 2393 | // Consider the RHS of comma for side effects. LHS was checked by | ||||||||
| 2394 | // Sema::CheckCommaOperands. | ||||||||
| 2395 | case BO_Comma: | ||||||||
| 2396 | // ((foo = <blah>), 0) is an idiom for hiding the result (and | ||||||||
| 2397 | // lvalue-ness) of an assignment written in a macro. | ||||||||
| 2398 | if (IntegerLiteral *IE = | ||||||||
| 2399 | dyn_cast<IntegerLiteral>(BO->getRHS()->IgnoreParens())) | ||||||||
| 2400 | if (IE->getValue() == 0) | ||||||||
| 2401 | return false; | ||||||||
| 2402 | return BO->getRHS()->isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx); | ||||||||
| 2403 | // Consider '||', '&&' to have side effects if the LHS or RHS does. | ||||||||
| 2404 | case BO_LAnd: | ||||||||
| 2405 | case BO_LOr: | ||||||||
| 2406 | if (!BO->getLHS()->isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx) || | ||||||||
| 2407 | !BO->getRHS()->isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx)) | ||||||||
| 2408 | return false; | ||||||||
| 2409 | break; | ||||||||
| 2410 | } | ||||||||
| 2411 | if (BO->isAssignmentOp()) | ||||||||
| 2412 | return false; | ||||||||
| 2413 | WarnE = this; | ||||||||
| 2414 | Loc = BO->getOperatorLoc(); | ||||||||
| 2415 | R1 = BO->getLHS()->getSourceRange(); | ||||||||
| 2416 | R2 = BO->getRHS()->getSourceRange(); | ||||||||
| 2417 | return true; | ||||||||
| 2418 | } | ||||||||
| 2419 | case CompoundAssignOperatorClass: | ||||||||
| 2420 | case VAArgExprClass: | ||||||||
| 2421 | case AtomicExprClass: | ||||||||
| 2422 | return false; | ||||||||
| 2423 | |||||||||
| 2424 | case ConditionalOperatorClass: { | ||||||||
| 2425 | // If only one of the LHS or RHS is a warning, the operator might | ||||||||
| 2426 | // be being used for control flow. Only warn if both the LHS and | ||||||||
| 2427 | // RHS are warnings. | ||||||||
| 2428 | const auto *Exp = cast<ConditionalOperator>(this); | ||||||||
| 2429 | return Exp->getLHS()->isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx) && | ||||||||
| 2430 | Exp->getRHS()->isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx); | ||||||||
| 2431 | } | ||||||||
| 2432 | case BinaryConditionalOperatorClass: { | ||||||||
| 2433 | const auto *Exp = cast<BinaryConditionalOperator>(this); | ||||||||
| 2434 | return Exp->getFalseExpr()->isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx); | ||||||||
| 2435 | } | ||||||||
| 2436 | |||||||||
| 2437 | case MemberExprClass: | ||||||||
| 2438 | WarnE = this; | ||||||||
| 2439 | Loc = cast<MemberExpr>(this)->getMemberLoc(); | ||||||||
| 2440 | R1 = SourceRange(Loc, Loc); | ||||||||
| 2441 | R2 = cast<MemberExpr>(this)->getBase()->getSourceRange(); | ||||||||
| 2442 | return true; | ||||||||
| 2443 | |||||||||
| 2444 | case ArraySubscriptExprClass: | ||||||||
| 2445 | WarnE = this; | ||||||||
| 2446 | Loc = cast<ArraySubscriptExpr>(this)->getRBracketLoc(); | ||||||||
| 2447 | R1 = cast<ArraySubscriptExpr>(this)->getLHS()->getSourceRange(); | ||||||||
| 2448 | R2 = cast<ArraySubscriptExpr>(this)->getRHS()->getSourceRange(); | ||||||||
| 2449 | return true; | ||||||||
| 2450 | |||||||||
| 2451 | case CXXOperatorCallExprClass: { | ||||||||
| 2452 | // Warn about operator ==,!=,<,>,<=, and >= even when user-defined operator | ||||||||
| 2453 | // overloads as there is no reasonable way to define these such that they | ||||||||
| 2454 | // have non-trivial, desirable side-effects. See the -Wunused-comparison | ||||||||
| 2455 | // warning: operators == and != are commonly typo'ed, and so warning on them | ||||||||
| 2456 | // provides additional value as well. If this list is updated, | ||||||||
| 2457 | // DiagnoseUnusedComparison should be as well. | ||||||||
| 2458 | const CXXOperatorCallExpr *Op = cast<CXXOperatorCallExpr>(this); | ||||||||
| 2459 | switch (Op->getOperator()) { | ||||||||
| 2460 | default: | ||||||||
| 2461 | break; | ||||||||
| 2462 | case OO_EqualEqual: | ||||||||
| 2463 | case OO_ExclaimEqual: | ||||||||
| 2464 | case OO_Less: | ||||||||
| 2465 | case OO_Greater: | ||||||||
| 2466 | case OO_GreaterEqual: | ||||||||
| 2467 | case OO_LessEqual: | ||||||||
| 2468 | if (Op->getCallReturnType(Ctx)->isReferenceType() || | ||||||||
| 2469 | Op->getCallReturnType(Ctx)->isVoidType()) | ||||||||
| 2470 | break; | ||||||||
| 2471 | WarnE = this; | ||||||||
| 2472 | Loc = Op->getOperatorLoc(); | ||||||||
| 2473 | R1 = Op->getSourceRange(); | ||||||||
| 2474 | return true; | ||||||||
| 2475 | } | ||||||||
| 2476 | |||||||||
| 2477 | // Fallthrough for generic call handling. | ||||||||
| 2478 | LLVM_FALLTHROUGH[[gnu::fallthrough]]; | ||||||||
| 2479 | } | ||||||||
| 2480 | case CallExprClass: | ||||||||
| 2481 | case CXXMemberCallExprClass: | ||||||||
| 2482 | case UserDefinedLiteralClass: { | ||||||||
| 2483 | // If this is a direct call, get the callee. | ||||||||
| 2484 | const CallExpr *CE = cast<CallExpr>(this); | ||||||||
| 2485 | if (const Decl *FD = CE->getCalleeDecl()) { | ||||||||
| 2486 | // If the callee has attribute pure, const, or warn_unused_result, warn | ||||||||
| 2487 | // about it. void foo() { strlen("bar"); } should warn. | ||||||||
| 2488 | // | ||||||||
| 2489 | // Note: If new cases are added here, DiagnoseUnusedExprResult should be | ||||||||
| 2490 | // updated to match for QoI. | ||||||||
| 2491 | if (CE->hasUnusedResultAttr(Ctx) || | ||||||||
| 2492 | FD->hasAttr<PureAttr>() || FD->hasAttr<ConstAttr>()) { | ||||||||
| 2493 | WarnE = this; | ||||||||
| 2494 | Loc = CE->getCallee()->getBeginLoc(); | ||||||||
| 2495 | R1 = CE->getCallee()->getSourceRange(); | ||||||||
| 2496 | |||||||||
| 2497 | if (unsigned NumArgs = CE->getNumArgs()) | ||||||||
| 2498 | R2 = SourceRange(CE->getArg(0)->getBeginLoc(), | ||||||||
| 2499 | CE->getArg(NumArgs - 1)->getEndLoc()); | ||||||||
| 2500 | return true; | ||||||||
| 2501 | } | ||||||||
| 2502 | } | ||||||||
| 2503 | return false; | ||||||||
| 2504 | } | ||||||||
| 2505 | |||||||||
| 2506 | // If we don't know precisely what we're looking at, let's not warn. | ||||||||
| 2507 | case UnresolvedLookupExprClass: | ||||||||
| 2508 | case CXXUnresolvedConstructExprClass: | ||||||||
| 2509 | case RecoveryExprClass: | ||||||||
| 2510 | return false; | ||||||||
| 2511 | |||||||||
| 2512 | case CXXTemporaryObjectExprClass: | ||||||||
| 2513 | case CXXConstructExprClass: { | ||||||||
| 2514 | if (const CXXRecordDecl *Type = getType()->getAsCXXRecordDecl()) { | ||||||||
| 2515 | const auto *WarnURAttr = Type->getAttr<WarnUnusedResultAttr>(); | ||||||||
| 2516 | if (Type->hasAttr<WarnUnusedAttr>() || | ||||||||
| 2517 | (WarnURAttr && WarnURAttr->IsCXX11NoDiscard())) { | ||||||||
| 2518 | WarnE = this; | ||||||||
| 2519 | Loc = getBeginLoc(); | ||||||||
| 2520 | R1 = getSourceRange(); | ||||||||
| 2521 | return true; | ||||||||
| 2522 | } | ||||||||
| 2523 | } | ||||||||
| 2524 | |||||||||
| 2525 | const auto *CE = cast<CXXConstructExpr>(this); | ||||||||
| 2526 | if (const CXXConstructorDecl *Ctor = CE->getConstructor()) { | ||||||||
| 2527 | const auto *WarnURAttr = Ctor->getAttr<WarnUnusedResultAttr>(); | ||||||||
| 2528 | if (WarnURAttr && WarnURAttr->IsCXX11NoDiscard()) { | ||||||||
| 2529 | WarnE = this; | ||||||||
| 2530 | Loc = getBeginLoc(); | ||||||||
| 2531 | R1 = getSourceRange(); | ||||||||
| 2532 | |||||||||
| 2533 | if (unsigned NumArgs = CE->getNumArgs()) | ||||||||
| 2534 | R2 = SourceRange(CE->getArg(0)->getBeginLoc(), | ||||||||
| 2535 | CE->getArg(NumArgs - 1)->getEndLoc()); | ||||||||
| 2536 | return true; | ||||||||
| 2537 | } | ||||||||
| 2538 | } | ||||||||
| 2539 | |||||||||
| 2540 | return false; | ||||||||
| 2541 | } | ||||||||
| 2542 | |||||||||
| 2543 | case ObjCMessageExprClass: { | ||||||||
| 2544 | const ObjCMessageExpr *ME = cast<ObjCMessageExpr>(this); | ||||||||
| 2545 | if (Ctx.getLangOpts().ObjCAutoRefCount && | ||||||||
| 2546 | ME->isInstanceMessage() && | ||||||||
| 2547 | !ME->getType()->isVoidType() && | ||||||||
| 2548 | ME->getMethodFamily() == OMF_init) { | ||||||||
| 2549 | WarnE = this; | ||||||||
| 2550 | Loc = getExprLoc(); | ||||||||
| 2551 | R1 = ME->getSourceRange(); | ||||||||
| 2552 | return true; | ||||||||
| 2553 | } | ||||||||
| 2554 | |||||||||
| 2555 | if (const ObjCMethodDecl *MD = ME->getMethodDecl()) | ||||||||
| 2556 | if (MD->hasAttr<WarnUnusedResultAttr>()) { | ||||||||
| 2557 | WarnE = this; | ||||||||
| 2558 | Loc = getExprLoc(); | ||||||||
| 2559 | return true; | ||||||||
| 2560 | } | ||||||||
| 2561 | |||||||||
| 2562 | return false; | ||||||||
| 2563 | } | ||||||||
| 2564 | |||||||||
| 2565 | case ObjCPropertyRefExprClass: | ||||||||
| 2566 | WarnE = this; | ||||||||
| 2567 | Loc = getExprLoc(); | ||||||||
| 2568 | R1 = getSourceRange(); | ||||||||
| 2569 | return true; | ||||||||
| 2570 | |||||||||
| 2571 | case PseudoObjectExprClass: { | ||||||||
| 2572 | const PseudoObjectExpr *PO = cast<PseudoObjectExpr>(this); | ||||||||
| 2573 | |||||||||
| 2574 | // Only complain about things that have the form of a getter. | ||||||||
| 2575 | if (isa<UnaryOperator>(PO->getSyntacticForm()) || | ||||||||
| 2576 | isa<BinaryOperator>(PO->getSyntacticForm())) | ||||||||
| 2577 | return false; | ||||||||
| 2578 | |||||||||
| 2579 | WarnE = this; | ||||||||
| 2580 | Loc = getExprLoc(); | ||||||||
| 2581 | R1 = getSourceRange(); | ||||||||
| 2582 | return true; | ||||||||
| 2583 | } | ||||||||
| 2584 | |||||||||
| 2585 | case StmtExprClass: { | ||||||||
| 2586 | // Statement exprs don't logically have side effects themselves, but are | ||||||||
| 2587 | // sometimes used in macros in ways that give them a type that is unused. | ||||||||
| 2588 | // For example ({ blah; foo(); }) will end up with a type if foo has a type. | ||||||||
| 2589 | // however, if the result of the stmt expr is dead, we don't want to emit a | ||||||||
| 2590 | // warning. | ||||||||
| 2591 | const CompoundStmt *CS = cast<StmtExpr>(this)->getSubStmt(); | ||||||||
| 2592 | if (!CS->body_empty()) { | ||||||||
| 2593 | if (const Expr *E = dyn_cast<Expr>(CS->body_back())) | ||||||||
| 2594 | return E->isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx); | ||||||||
| 2595 | if (const LabelStmt *Label = dyn_cast<LabelStmt>(CS->body_back())) | ||||||||
| 2596 | if (const Expr *E = dyn_cast<Expr>(Label->getSubStmt())) | ||||||||
| 2597 | return E->isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx); | ||||||||
| 2598 | } | ||||||||
| 2599 | |||||||||
| 2600 | if (getType()->isVoidType()) | ||||||||
| 2601 | return false; | ||||||||
| 2602 | WarnE = this; | ||||||||
| 2603 | Loc = cast<StmtExpr>(this)->getLParenLoc(); | ||||||||
| 2604 | R1 = getSourceRange(); | ||||||||
| 2605 | return true; | ||||||||
| 2606 | } | ||||||||
| 2607 | case CXXFunctionalCastExprClass: | ||||||||
| 2608 | case CStyleCastExprClass: { | ||||||||
| 2609 | // Ignore an explicit cast to void, except in C++98 if the operand is a | ||||||||
| 2610 | // volatile glvalue for which we would trigger an implicit read in any | ||||||||
| 2611 | // other language mode. (Such an implicit read always happens as part of | ||||||||
| 2612 | // the lvalue conversion in C, and happens in C++ for expressions of all | ||||||||
| 2613 | // forms where it seems likely the user intended to trigger a volatile | ||||||||
| 2614 | // load.) | ||||||||
| 2615 | const CastExpr *CE = cast<CastExpr>(this); | ||||||||
| 2616 | const Expr *SubE = CE->getSubExpr()->IgnoreParens(); | ||||||||
| 2617 | if (CE->getCastKind() == CK_ToVoid) { | ||||||||
| 2618 | if (Ctx.getLangOpts().CPlusPlus && !Ctx.getLangOpts().CPlusPlus11 && | ||||||||
| 2619 | SubE->isReadIfDiscardedInCPlusPlus11()) { | ||||||||
| 2620 | // Suppress the "unused value" warning for idiomatic usage of | ||||||||
| 2621 | // '(void)var;' used to suppress "unused variable" warnings. | ||||||||
| 2622 | if (auto *DRE = dyn_cast<DeclRefExpr>(SubE)) | ||||||||
| 2623 | if (auto *VD = dyn_cast<VarDecl>(DRE->getDecl())) | ||||||||
| 2624 | if (!VD->isExternallyVisible()) | ||||||||
| 2625 | return false; | ||||||||
| 2626 | |||||||||
| 2627 | // The lvalue-to-rvalue conversion would have no effect for an array. | ||||||||
| 2628 | // It's implausible that the programmer expected this to result in a | ||||||||
| 2629 | // volatile array load, so don't warn. | ||||||||
| 2630 | if (SubE->getType()->isArrayType()) | ||||||||
| 2631 | return false; | ||||||||
| 2632 | |||||||||
| 2633 | return SubE->isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx); | ||||||||
| 2634 | } | ||||||||
| 2635 | return false; | ||||||||
| 2636 | } | ||||||||
| 2637 | |||||||||
| 2638 | // If this is a cast to a constructor conversion, check the operand. | ||||||||
| 2639 | // Otherwise, the result of the cast is unused. | ||||||||
| 2640 | if (CE->getCastKind() == CK_ConstructorConversion) | ||||||||
| 2641 | return CE->getSubExpr()->isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx); | ||||||||
| 2642 | if (CE->getCastKind() == CK_Dependent) | ||||||||
| 2643 | return false; | ||||||||
| 2644 | |||||||||
| 2645 | WarnE = this; | ||||||||
| 2646 | if (const CXXFunctionalCastExpr *CXXCE = | ||||||||
| 2647 | dyn_cast<CXXFunctionalCastExpr>(this)) { | ||||||||
| 2648 | Loc = CXXCE->getBeginLoc(); | ||||||||
| 2649 | R1 = CXXCE->getSubExpr()->getSourceRange(); | ||||||||
| 2650 | } else { | ||||||||
| 2651 | const CStyleCastExpr *CStyleCE = cast<CStyleCastExpr>(this); | ||||||||
| 2652 | Loc = CStyleCE->getLParenLoc(); | ||||||||
| 2653 | R1 = CStyleCE->getSubExpr()->getSourceRange(); | ||||||||
| 2654 | } | ||||||||
| 2655 | return true; | ||||||||
| 2656 | } | ||||||||
| 2657 | case ImplicitCastExprClass: { | ||||||||
| 2658 | const CastExpr *ICE = cast<ImplicitCastExpr>(this); | ||||||||
| 2659 | |||||||||
| 2660 | // lvalue-to-rvalue conversion on a volatile lvalue is a side-effect. | ||||||||
| 2661 | if (ICE->getCastKind() == CK_LValueToRValue && | ||||||||
| 2662 | ICE->getSubExpr()->getType().isVolatileQualified()) | ||||||||
| 2663 | return false; | ||||||||
| 2664 | |||||||||
| 2665 | return ICE->getSubExpr()->isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx); | ||||||||
| 2666 | } | ||||||||
| 2667 | case CXXDefaultArgExprClass: | ||||||||
| 2668 | return (cast<CXXDefaultArgExpr>(this) | ||||||||
| 2669 | ->getExpr()->isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx)); | ||||||||
| 2670 | case CXXDefaultInitExprClass: | ||||||||
| 2671 | return (cast<CXXDefaultInitExpr>(this) | ||||||||
| 2672 | ->getExpr()->isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx)); | ||||||||
| 2673 | |||||||||
| 2674 | case CXXNewExprClass: | ||||||||
| 2675 | // FIXME: In theory, there might be new expressions that don't have side | ||||||||
| 2676 | // effects (e.g. a placement new with an uninitialized POD). | ||||||||
| 2677 | case CXXDeleteExprClass: | ||||||||
| 2678 | return false; | ||||||||
| 2679 | case MaterializeTemporaryExprClass: | ||||||||
| 2680 | return cast<MaterializeTemporaryExpr>(this) | ||||||||
| 2681 | ->getSubExpr() | ||||||||
| 2682 | ->isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx); | ||||||||
| 2683 | case CXXBindTemporaryExprClass: | ||||||||
| 2684 | return cast<CXXBindTemporaryExpr>(this)->getSubExpr() | ||||||||
| 2685 | ->isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx); | ||||||||
| 2686 | case ExprWithCleanupsClass: | ||||||||
| 2687 | return cast<ExprWithCleanups>(this)->getSubExpr() | ||||||||
| 2688 | ->isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx); | ||||||||
| 2689 | } | ||||||||
| 2690 | } | ||||||||
| 2691 | |||||||||
| 2692 | /// isOBJCGCCandidate - Check if an expression is objc gc'able. | ||||||||
| 2693 | /// returns true, if it is; false otherwise. | ||||||||
| 2694 | bool Expr::isOBJCGCCandidate(ASTContext &Ctx) const { | ||||||||
| 2695 | const Expr *E = IgnoreParens(); | ||||||||
| 2696 | switch (E->getStmtClass()) { | ||||||||
| 2697 | default: | ||||||||
| 2698 | return false; | ||||||||
| 2699 | case ObjCIvarRefExprClass: | ||||||||
| 2700 | return true; | ||||||||
| 2701 | case Expr::UnaryOperatorClass: | ||||||||
| 2702 | return cast<UnaryOperator>(E)->getSubExpr()->isOBJCGCCandidate(Ctx); | ||||||||
| 2703 | case ImplicitCastExprClass: | ||||||||
| 2704 | return cast<ImplicitCastExpr>(E)->getSubExpr()->isOBJCGCCandidate(Ctx); | ||||||||
| 2705 | case MaterializeTemporaryExprClass: | ||||||||
| 2706 | return cast<MaterializeTemporaryExpr>(E)->getSubExpr()->isOBJCGCCandidate( | ||||||||
| 2707 | Ctx); | ||||||||
| 2708 | case CStyleCastExprClass: | ||||||||
| 2709 | return cast<CStyleCastExpr>(E)->getSubExpr()->isOBJCGCCandidate(Ctx); | ||||||||
| 2710 | case DeclRefExprClass: { | ||||||||
| 2711 | const Decl *D = cast<DeclRefExpr>(E)->getDecl(); | ||||||||
| 2712 | |||||||||
| 2713 | if (const VarDecl *VD = dyn_cast<VarDecl>(D)) { | ||||||||
| 2714 | if (VD->hasGlobalStorage()) | ||||||||
| 2715 | return true; | ||||||||
| 2716 | QualType T = VD->getType(); | ||||||||
| 2717 | // dereferencing to a pointer is always a gc'able candidate, | ||||||||
| 2718 | // unless it is __weak. | ||||||||
| 2719 | return T->isPointerType() && | ||||||||
| 2720 | (Ctx.getObjCGCAttrKind(T) != Qualifiers::Weak); | ||||||||
| 2721 | } | ||||||||
| 2722 | return false; | ||||||||
| 2723 | } | ||||||||
| 2724 | case MemberExprClass: { | ||||||||
| 2725 | const MemberExpr *M = cast<MemberExpr>(E); | ||||||||
| 2726 | return M->getBase()->isOBJCGCCandidate(Ctx); | ||||||||
| 2727 | } | ||||||||
| 2728 | case ArraySubscriptExprClass: | ||||||||
| 2729 | return cast<ArraySubscriptExpr>(E)->getBase()->isOBJCGCCandidate(Ctx); | ||||||||
| 2730 | } | ||||||||
| 2731 | } | ||||||||
| 2732 | |||||||||
| 2733 | bool Expr::isBoundMemberFunction(ASTContext &Ctx) const { | ||||||||
| 2734 | if (isTypeDependent()) | ||||||||
| 2735 | return false; | ||||||||
| 2736 | return ClassifyLValue(Ctx) == Expr::LV_MemberFunction; | ||||||||
| 2737 | } | ||||||||
| 2738 | |||||||||
| 2739 | QualType Expr::findBoundMemberType(const Expr *expr) { | ||||||||
| 2740 | assert(expr->hasPlaceholderType(BuiltinType::BoundMember))((expr->hasPlaceholderType(BuiltinType::BoundMember)) ? static_cast <void> (0) : __assert_fail ("expr->hasPlaceholderType(BuiltinType::BoundMember)" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 2740, __PRETTY_FUNCTION__)); | ||||||||
| 2741 | |||||||||
| 2742 | // Bound member expressions are always one of these possibilities: | ||||||||
| 2743 | // x->m x.m x->*y x.*y | ||||||||
| 2744 | // (possibly parenthesized) | ||||||||
| 2745 | |||||||||
| 2746 | expr = expr->IgnoreParens(); | ||||||||
| 2747 | if (const MemberExpr *mem = dyn_cast<MemberExpr>(expr)) { | ||||||||
| 2748 | assert(isa<CXXMethodDecl>(mem->getMemberDecl()))((isa<CXXMethodDecl>(mem->getMemberDecl())) ? static_cast <void> (0) : __assert_fail ("isa<CXXMethodDecl>(mem->getMemberDecl())" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 2748, __PRETTY_FUNCTION__)); | ||||||||
| 2749 | return mem->getMemberDecl()->getType(); | ||||||||
| 2750 | } | ||||||||
| 2751 | |||||||||
| 2752 | if (const BinaryOperator *op = dyn_cast<BinaryOperator>(expr)) { | ||||||||
| 2753 | QualType type = op->getRHS()->getType()->castAs<MemberPointerType>() | ||||||||
| 2754 | ->getPointeeType(); | ||||||||
| 2755 | assert(type->isFunctionType())((type->isFunctionType()) ? static_cast<void> (0) : __assert_fail ("type->isFunctionType()", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 2755, __PRETTY_FUNCTION__)); | ||||||||
| 2756 | return type; | ||||||||
| 2757 | } | ||||||||
| 2758 | |||||||||
| 2759 | assert(isa<UnresolvedMemberExpr>(expr) || isa<CXXPseudoDestructorExpr>(expr))((isa<UnresolvedMemberExpr>(expr) || isa<CXXPseudoDestructorExpr >(expr)) ? static_cast<void> (0) : __assert_fail ("isa<UnresolvedMemberExpr>(expr) || isa<CXXPseudoDestructorExpr>(expr)" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 2759, __PRETTY_FUNCTION__)); | ||||||||
| 2760 | return QualType(); | ||||||||
| 2761 | } | ||||||||
| 2762 | |||||||||
| 2763 | Expr *Expr::IgnoreImpCasts() { | ||||||||
| 2764 | return IgnoreExprNodes(this, IgnoreImplicitCastsSingleStep); | ||||||||
| 2765 | } | ||||||||
| 2766 | |||||||||
| 2767 | Expr *Expr::IgnoreCasts() { | ||||||||
| 2768 | return IgnoreExprNodes(this, IgnoreCastsSingleStep); | ||||||||
| 2769 | } | ||||||||
| 2770 | |||||||||
| 2771 | Expr *Expr::IgnoreImplicit() { | ||||||||
| 2772 | return IgnoreExprNodes(this, IgnoreImplicitSingleStep); | ||||||||
| 2773 | } | ||||||||
| 2774 | |||||||||
| 2775 | Expr *Expr::IgnoreImplicitAsWritten() { | ||||||||
| 2776 | return IgnoreExprNodes(this, IgnoreImplicitAsWrittenSingleStep); | ||||||||
| 2777 | } | ||||||||
| 2778 | |||||||||
| 2779 | Expr *Expr::IgnoreParens() { | ||||||||
| 2780 | return IgnoreExprNodes(this, IgnoreParensSingleStep); | ||||||||
| 2781 | } | ||||||||
| 2782 | |||||||||
| 2783 | Expr *Expr::IgnoreParenImpCasts() { | ||||||||
| 2784 | return IgnoreExprNodes(this, IgnoreParensSingleStep, | ||||||||
| 2785 | IgnoreImplicitCastsExtraSingleStep); | ||||||||
| 2786 | } | ||||||||
| 2787 | |||||||||
| 2788 | Expr *Expr::IgnoreParenCasts() { | ||||||||
| 2789 | return IgnoreExprNodes(this, IgnoreParensSingleStep, IgnoreCastsSingleStep); | ||||||||
| 2790 | } | ||||||||
| 2791 | |||||||||
| 2792 | Expr *Expr::IgnoreConversionOperatorSingleStep() { | ||||||||
| 2793 | if (auto *MCE = dyn_cast<CXXMemberCallExpr>(this)) { | ||||||||
| 2794 | if (MCE->getMethodDecl() && isa<CXXConversionDecl>(MCE->getMethodDecl())) | ||||||||
| 2795 | return MCE->getImplicitObjectArgument(); | ||||||||
| 2796 | } | ||||||||
| 2797 | return this; | ||||||||
| 2798 | } | ||||||||
| 2799 | |||||||||
| 2800 | Expr *Expr::IgnoreParenLValueCasts() { | ||||||||
| 2801 | return IgnoreExprNodes(this, IgnoreParensSingleStep, | ||||||||
| 2802 | IgnoreLValueCastsSingleStep); | ||||||||
| 2803 | } | ||||||||
| 2804 | |||||||||
| 2805 | Expr *Expr::IgnoreParenBaseCasts() { | ||||||||
| 2806 | return IgnoreExprNodes(this, IgnoreParensSingleStep, | ||||||||
| 2807 | IgnoreBaseCastsSingleStep); | ||||||||
| 2808 | } | ||||||||
| 2809 | |||||||||
| 2810 | Expr *Expr::IgnoreParenNoopCasts(const ASTContext &Ctx) { | ||||||||
| 2811 | auto IgnoreNoopCastsSingleStep = [&Ctx](Expr *E) { | ||||||||
| 2812 | if (auto *CE = dyn_cast<CastExpr>(E)) { | ||||||||
| 2813 | // We ignore integer <-> casts that are of the same width, ptr<->ptr and | ||||||||
| 2814 | // ptr<->int casts of the same width. We also ignore all identity casts. | ||||||||
| 2815 | Expr *SubExpr = CE->getSubExpr(); | ||||||||
| 2816 | bool IsIdentityCast = | ||||||||
| 2817 | Ctx.hasSameUnqualifiedType(E->getType(), SubExpr->getType()); | ||||||||
| 2818 | bool IsSameWidthCast = (E->getType()->isPointerType() || | ||||||||
| 2819 | E->getType()->isIntegralType(Ctx)) && | ||||||||
| 2820 | (SubExpr->getType()->isPointerType() || | ||||||||
| 2821 | SubExpr->getType()->isIntegralType(Ctx)) && | ||||||||
| 2822 | (Ctx.getTypeSize(E->getType()) == | ||||||||
| 2823 | Ctx.getTypeSize(SubExpr->getType())); | ||||||||
| 2824 | |||||||||
| 2825 | if (IsIdentityCast || IsSameWidthCast) | ||||||||
| 2826 | return SubExpr; | ||||||||
| 2827 | } else if (auto *NTTP = dyn_cast<SubstNonTypeTemplateParmExpr>(E)) | ||||||||
| 2828 | return NTTP->getReplacement(); | ||||||||
| 2829 | |||||||||
| 2830 | return E; | ||||||||
| 2831 | }; | ||||||||
| 2832 | return IgnoreExprNodes(this, IgnoreParensSingleStep, | ||||||||
| 2833 | IgnoreNoopCastsSingleStep); | ||||||||
| 2834 | } | ||||||||
| 2835 | |||||||||
| 2836 | Expr *Expr::IgnoreUnlessSpelledInSource() { | ||||||||
| 2837 | auto IgnoreImplicitConstructorSingleStep = [](Expr *E) { | ||||||||
| 2838 | if (auto *Cast = dyn_cast<CXXFunctionalCastExpr>(E)) { | ||||||||
| 2839 | auto *SE = Cast->getSubExpr(); | ||||||||
| 2840 | if (SE->getSourceRange() == E->getSourceRange()) | ||||||||
| 2841 | return SE; | ||||||||
| 2842 | } | ||||||||
| 2843 | |||||||||
| 2844 | if (auto *C = dyn_cast<CXXConstructExpr>(E)) { | ||||||||
| 2845 | auto NumArgs = C->getNumArgs(); | ||||||||
| 2846 | if (NumArgs == 1 || | ||||||||
| 2847 | (NumArgs > 1 && isa<CXXDefaultArgExpr>(C->getArg(1)))) { | ||||||||
| 2848 | Expr *A = C->getArg(0); | ||||||||
| 2849 | if (A->getSourceRange() == E->getSourceRange() || C->isElidable()) | ||||||||
| 2850 | return A; | ||||||||
| 2851 | } | ||||||||
| 2852 | } | ||||||||
| 2853 | return E; | ||||||||
| 2854 | }; | ||||||||
| 2855 | auto IgnoreImplicitMemberCallSingleStep = [](Expr *E) { | ||||||||
| 2856 | if (auto *C = dyn_cast<CXXMemberCallExpr>(E)) { | ||||||||
| 2857 | Expr *ExprNode = C->getImplicitObjectArgument(); | ||||||||
| 2858 | if (ExprNode->getSourceRange() == E->getSourceRange()) { | ||||||||
| 2859 | return ExprNode; | ||||||||
| 2860 | } | ||||||||
| 2861 | if (auto *PE = dyn_cast<ParenExpr>(ExprNode)) { | ||||||||
| 2862 | if (PE->getSourceRange() == C->getSourceRange()) { | ||||||||
| 2863 | return cast<Expr>(PE); | ||||||||
| 2864 | } | ||||||||
| 2865 | } | ||||||||
| 2866 | ExprNode = ExprNode->IgnoreParenImpCasts(); | ||||||||
| 2867 | if (ExprNode->getSourceRange() == E->getSourceRange()) | ||||||||
| 2868 | return ExprNode; | ||||||||
| 2869 | } | ||||||||
| 2870 | return E; | ||||||||
| 2871 | }; | ||||||||
| 2872 | return IgnoreExprNodes( | ||||||||
| 2873 | this, IgnoreImplicitSingleStep, IgnoreImplicitCastsExtraSingleStep, | ||||||||
| 2874 | IgnoreParensOnlySingleStep, IgnoreImplicitConstructorSingleStep, | ||||||||
| 2875 | IgnoreImplicitMemberCallSingleStep); | ||||||||
| 2876 | } | ||||||||
| 2877 | |||||||||
| 2878 | bool Expr::isDefaultArgument() const { | ||||||||
| 2879 | const Expr *E = this; | ||||||||
| 2880 | if (const MaterializeTemporaryExpr *M = dyn_cast<MaterializeTemporaryExpr>(E)) | ||||||||
| 2881 | E = M->getSubExpr(); | ||||||||
| 2882 | |||||||||
| 2883 | while (const ImplicitCastExpr *ICE = dyn_cast<ImplicitCastExpr>(E)) | ||||||||
| 2884 | E = ICE->getSubExprAsWritten(); | ||||||||
| 2885 | |||||||||
| 2886 | return isa<CXXDefaultArgExpr>(E); | ||||||||
| 2887 | } | ||||||||
| 2888 | |||||||||
| 2889 | /// Skip over any no-op casts and any temporary-binding | ||||||||
| 2890 | /// expressions. | ||||||||
| 2891 | static const Expr *skipTemporaryBindingsNoOpCastsAndParens(const Expr *E) { | ||||||||
| 2892 | if (const MaterializeTemporaryExpr *M = dyn_cast<MaterializeTemporaryExpr>(E)) | ||||||||
| 2893 | E = M->getSubExpr(); | ||||||||
| 2894 | |||||||||
| 2895 | while (const ImplicitCastExpr *ICE = dyn_cast<ImplicitCastExpr>(E)) { | ||||||||
| 2896 | if (ICE->getCastKind() == CK_NoOp) | ||||||||
| 2897 | E = ICE->getSubExpr(); | ||||||||
| 2898 | else | ||||||||
| 2899 | break; | ||||||||
| 2900 | } | ||||||||
| 2901 | |||||||||
| 2902 | while (const CXXBindTemporaryExpr *BE = dyn_cast<CXXBindTemporaryExpr>(E)) | ||||||||
| 2903 | E = BE->getSubExpr(); | ||||||||
| 2904 | |||||||||
| 2905 | while (const ImplicitCastExpr *ICE = dyn_cast<ImplicitCastExpr>(E)) { | ||||||||
| 2906 | if (ICE->getCastKind() == CK_NoOp) | ||||||||
| 2907 | E = ICE->getSubExpr(); | ||||||||
| 2908 | else | ||||||||
| 2909 | break; | ||||||||
| 2910 | } | ||||||||
| 2911 | |||||||||
| 2912 | return E->IgnoreParens(); | ||||||||
| 2913 | } | ||||||||
| 2914 | |||||||||
| 2915 | /// isTemporaryObject - Determines if this expression produces a | ||||||||
| 2916 | /// temporary of the given class type. | ||||||||
| 2917 | bool Expr::isTemporaryObject(ASTContext &C, const CXXRecordDecl *TempTy) const { | ||||||||
| 2918 | if (!C.hasSameUnqualifiedType(getType(), C.getTypeDeclType(TempTy))) | ||||||||
| 2919 | return false; | ||||||||
| 2920 | |||||||||
| 2921 | const Expr *E = skipTemporaryBindingsNoOpCastsAndParens(this); | ||||||||
| 2922 | |||||||||
| 2923 | // Temporaries are by definition pr-values of class type. | ||||||||
| 2924 | if (!E->Classify(C).isPRValue()) { | ||||||||
| 2925 | // In this context, property reference is a message call and is pr-value. | ||||||||
| 2926 | if (!isa<ObjCPropertyRefExpr>(E)) | ||||||||
| 2927 | return false; | ||||||||
| 2928 | } | ||||||||
| 2929 | |||||||||
| 2930 | // Black-list a few cases which yield pr-values of class type that don't | ||||||||
| 2931 | // refer to temporaries of that type: | ||||||||
| 2932 | |||||||||
| 2933 | // - implicit derived-to-base conversions | ||||||||
| 2934 | if (isa<ImplicitCastExpr>(E)) { | ||||||||
| 2935 | switch (cast<ImplicitCastExpr>(E)->getCastKind()) { | ||||||||
| 2936 | case CK_DerivedToBase: | ||||||||
| 2937 | case CK_UncheckedDerivedToBase: | ||||||||
| 2938 | return false; | ||||||||
| 2939 | default: | ||||||||
| 2940 | break; | ||||||||
| 2941 | } | ||||||||
| 2942 | } | ||||||||
| 2943 | |||||||||
| 2944 | // - member expressions (all) | ||||||||
| 2945 | if (isa<MemberExpr>(E)) | ||||||||
| 2946 | return false; | ||||||||
| 2947 | |||||||||
| 2948 | if (const BinaryOperator *BO = dyn_cast<BinaryOperator>(E)) | ||||||||
| 2949 | if (BO->isPtrMemOp()) | ||||||||
| 2950 | return false; | ||||||||
| 2951 | |||||||||
| 2952 | // - opaque values (all) | ||||||||
| 2953 | if (isa<OpaqueValueExpr>(E)) | ||||||||
| 2954 | return false; | ||||||||
| 2955 | |||||||||
| 2956 | return true; | ||||||||
| 2957 | } | ||||||||
| 2958 | |||||||||
| 2959 | bool Expr::isImplicitCXXThis() const { | ||||||||
| 2960 | const Expr *E = this; | ||||||||
| 2961 | |||||||||
| 2962 | // Strip away parentheses and casts we don't care about. | ||||||||
| 2963 | while (true) { | ||||||||
| 2964 | if (const ParenExpr *Paren = dyn_cast<ParenExpr>(E)) { | ||||||||
| 2965 | E = Paren->getSubExpr(); | ||||||||
| 2966 | continue; | ||||||||
| 2967 | } | ||||||||
| 2968 | |||||||||
| 2969 | if (const ImplicitCastExpr *ICE = dyn_cast<ImplicitCastExpr>(E)) { | ||||||||
| 2970 | if (ICE->getCastKind() == CK_NoOp || | ||||||||
| 2971 | ICE->getCastKind() == CK_LValueToRValue || | ||||||||
| 2972 | ICE->getCastKind() == CK_DerivedToBase || | ||||||||
| 2973 | ICE->getCastKind() == CK_UncheckedDerivedToBase) { | ||||||||
| 2974 | E = ICE->getSubExpr(); | ||||||||
| 2975 | continue; | ||||||||
| 2976 | } | ||||||||
| 2977 | } | ||||||||
| 2978 | |||||||||
| 2979 | if (const UnaryOperator* UnOp = dyn_cast<UnaryOperator>(E)) { | ||||||||
| 2980 | if (UnOp->getOpcode() == UO_Extension) { | ||||||||
| 2981 | E = UnOp->getSubExpr(); | ||||||||
| 2982 | continue; | ||||||||
| 2983 | } | ||||||||
| 2984 | } | ||||||||
| 2985 | |||||||||
| 2986 | if (const MaterializeTemporaryExpr *M | ||||||||
| 2987 | = dyn_cast<MaterializeTemporaryExpr>(E)) { | ||||||||
| 2988 | E = M->getSubExpr(); | ||||||||
| 2989 | continue; | ||||||||
| 2990 | } | ||||||||
| 2991 | |||||||||
| 2992 | break; | ||||||||
| 2993 | } | ||||||||
| 2994 | |||||||||
| 2995 | if (const CXXThisExpr *This = dyn_cast<CXXThisExpr>(E)) | ||||||||
| 2996 | return This->isImplicit(); | ||||||||
| 2997 | |||||||||
| 2998 | return false; | ||||||||
| 2999 | } | ||||||||
| 3000 | |||||||||
| 3001 | /// hasAnyTypeDependentArguments - Determines if any of the expressions | ||||||||
| 3002 | /// in Exprs is type-dependent. | ||||||||
| 3003 | bool Expr::hasAnyTypeDependentArguments(ArrayRef<Expr *> Exprs) { | ||||||||
| 3004 | for (unsigned I = 0; I < Exprs.size(); ++I) | ||||||||
| 3005 | if (Exprs[I]->isTypeDependent()) | ||||||||
| 3006 | return true; | ||||||||
| 3007 | |||||||||
| 3008 | return false; | ||||||||
| 3009 | } | ||||||||
| 3010 | |||||||||
| 3011 | bool Expr::isConstantInitializer(ASTContext &Ctx, bool IsForRef, | ||||||||
| 3012 | const Expr **Culprit) const { | ||||||||
| 3013 | assert(!isValueDependent() &&((!isValueDependent() && "Expression evaluator can't be called on a dependent expression." ) ? static_cast<void> (0) : __assert_fail ("!isValueDependent() && \"Expression evaluator can't be called on a dependent expression.\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 3014, __PRETTY_FUNCTION__)) | ||||||||
| 3014 | "Expression evaluator can't be called on a dependent expression.")((!isValueDependent() && "Expression evaluator can't be called on a dependent expression." ) ? static_cast<void> (0) : __assert_fail ("!isValueDependent() && \"Expression evaluator can't be called on a dependent expression.\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 3014, __PRETTY_FUNCTION__)); | ||||||||
| 3015 | |||||||||
| 3016 | // This function is attempting whether an expression is an initializer | ||||||||
| 3017 | // which can be evaluated at compile-time. It very closely parallels | ||||||||
| 3018 | // ConstExprEmitter in CGExprConstant.cpp; if they don't match, it | ||||||||
| 3019 | // will lead to unexpected results. Like ConstExprEmitter, it falls back | ||||||||
| 3020 | // to isEvaluatable most of the time. | ||||||||
| 3021 | // | ||||||||
| 3022 | // If we ever capture reference-binding directly in the AST, we can | ||||||||
| 3023 | // kill the second parameter. | ||||||||
| 3024 | |||||||||
| 3025 | if (IsForRef) { | ||||||||
| 3026 | EvalResult Result; | ||||||||
| 3027 | if (EvaluateAsLValue(Result, Ctx) && !Result.HasSideEffects) | ||||||||
| 3028 | return true; | ||||||||
| 3029 | if (Culprit) | ||||||||
| 3030 | *Culprit = this; | ||||||||
| 3031 | return false; | ||||||||
| 3032 | } | ||||||||
| 3033 | |||||||||
| 3034 | switch (getStmtClass()) { | ||||||||
| 3035 | default: break; | ||||||||
| 3036 | case Stmt::ExprWithCleanupsClass: | ||||||||
| 3037 | return cast<ExprWithCleanups>(this)->getSubExpr()->isConstantInitializer( | ||||||||
| 3038 | Ctx, IsForRef, Culprit); | ||||||||
| 3039 | case StringLiteralClass: | ||||||||
| 3040 | case ObjCEncodeExprClass: | ||||||||
| 3041 | return true; | ||||||||
| 3042 | case CXXTemporaryObjectExprClass: | ||||||||
| 3043 | case CXXConstructExprClass: { | ||||||||
| 3044 | const CXXConstructExpr *CE = cast<CXXConstructExpr>(this); | ||||||||
| 3045 | |||||||||
| 3046 | if (CE->getConstructor()->isTrivial() && | ||||||||
| 3047 | CE->getConstructor()->getParent()->hasTrivialDestructor()) { | ||||||||
| 3048 | // Trivial default constructor | ||||||||
| 3049 | if (!CE->getNumArgs()) return true; | ||||||||
| 3050 | |||||||||
| 3051 | // Trivial copy constructor | ||||||||
| 3052 | assert(CE->getNumArgs() == 1 && "trivial ctor with > 1 argument")((CE->getNumArgs() == 1 && "trivial ctor with > 1 argument" ) ? static_cast<void> (0) : __assert_fail ("CE->getNumArgs() == 1 && \"trivial ctor with > 1 argument\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 3052, __PRETTY_FUNCTION__)); | ||||||||
| 3053 | return CE->getArg(0)->isConstantInitializer(Ctx, false, Culprit); | ||||||||
| 3054 | } | ||||||||
| 3055 | |||||||||
| 3056 | break; | ||||||||
| 3057 | } | ||||||||
| 3058 | case ConstantExprClass: { | ||||||||
| 3059 | // FIXME: We should be able to return "true" here, but it can lead to extra | ||||||||
| 3060 | // error messages. E.g. in Sema/array-init.c. | ||||||||
| 3061 | const Expr *Exp = cast<ConstantExpr>(this)->getSubExpr(); | ||||||||
| 3062 | return Exp->isConstantInitializer(Ctx, false, Culprit); | ||||||||
| 3063 | } | ||||||||
| 3064 | case CompoundLiteralExprClass: { | ||||||||
| 3065 | // This handles gcc's extension that allows global initializers like | ||||||||
| 3066 | // "struct x {int x;} x = (struct x) {};". | ||||||||
| 3067 | // FIXME: This accepts other cases it shouldn't! | ||||||||
| 3068 | const Expr *Exp = cast<CompoundLiteralExpr>(this)->getInitializer(); | ||||||||
| 3069 | return Exp->isConstantInitializer(Ctx, false, Culprit); | ||||||||
| 3070 | } | ||||||||
| 3071 | case DesignatedInitUpdateExprClass: { | ||||||||
| 3072 | const DesignatedInitUpdateExpr *DIUE = cast<DesignatedInitUpdateExpr>(this); | ||||||||
| 3073 | return DIUE->getBase()->isConstantInitializer(Ctx, false, Culprit) && | ||||||||
| 3074 | DIUE->getUpdater()->isConstantInitializer(Ctx, false, Culprit); | ||||||||
| 3075 | } | ||||||||
| 3076 | case InitListExprClass: { | ||||||||
| 3077 | const InitListExpr *ILE = cast<InitListExpr>(this); | ||||||||
| 3078 | assert(ILE->isSemanticForm() && "InitListExpr must be in semantic form")((ILE->isSemanticForm() && "InitListExpr must be in semantic form" ) ? static_cast<void> (0) : __assert_fail ("ILE->isSemanticForm() && \"InitListExpr must be in semantic form\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 3078, __PRETTY_FUNCTION__)); | ||||||||
| 3079 | if (ILE->getType()->isArrayType()) { | ||||||||
| 3080 | unsigned numInits = ILE->getNumInits(); | ||||||||
| 3081 | for (unsigned i = 0; i < numInits; i++) { | ||||||||
| 3082 | if (!ILE->getInit(i)->isConstantInitializer(Ctx, false, Culprit)) | ||||||||
| 3083 | return false; | ||||||||
| 3084 | } | ||||||||
| 3085 | return true; | ||||||||
| 3086 | } | ||||||||
| 3087 | |||||||||
| 3088 | if (ILE->getType()->isRecordType()) { | ||||||||
| 3089 | unsigned ElementNo = 0; | ||||||||
| 3090 | RecordDecl *RD = ILE->getType()->castAs<RecordType>()->getDecl(); | ||||||||
| 3091 | for (const auto *Field : RD->fields()) { | ||||||||
| 3092 | // If this is a union, skip all the fields that aren't being initialized. | ||||||||
| 3093 | if (RD->isUnion() && ILE->getInitializedFieldInUnion() != Field) | ||||||||
| 3094 | continue; | ||||||||
| 3095 | |||||||||
| 3096 | // Don't emit anonymous bitfields, they just affect layout. | ||||||||
| 3097 | if (Field->isUnnamedBitfield()) | ||||||||
| 3098 | continue; | ||||||||
| 3099 | |||||||||
| 3100 | if (ElementNo < ILE->getNumInits()) { | ||||||||
| 3101 | const Expr *Elt = ILE->getInit(ElementNo++); | ||||||||
| 3102 | if (Field->isBitField()) { | ||||||||
| 3103 | // Bitfields have to evaluate to an integer. | ||||||||
| 3104 | EvalResult Result; | ||||||||
| 3105 | if (!Elt->EvaluateAsInt(Result, Ctx)) { | ||||||||
| 3106 | if (Culprit) | ||||||||
| 3107 | *Culprit = Elt; | ||||||||
| 3108 | return false; | ||||||||
| 3109 | } | ||||||||
| 3110 | } else { | ||||||||
| 3111 | bool RefType = Field->getType()->isReferenceType(); | ||||||||
| 3112 | if (!Elt->isConstantInitializer(Ctx, RefType, Culprit)) | ||||||||
| 3113 | return false; | ||||||||
| 3114 | } | ||||||||
| 3115 | } | ||||||||
| 3116 | } | ||||||||
| 3117 | return true; | ||||||||
| 3118 | } | ||||||||
| 3119 | |||||||||
| 3120 | break; | ||||||||
| 3121 | } | ||||||||
| 3122 | case ImplicitValueInitExprClass: | ||||||||
| 3123 | case NoInitExprClass: | ||||||||
| 3124 | return true; | ||||||||
| 3125 | case ParenExprClass: | ||||||||
| 3126 | return cast<ParenExpr>(this)->getSubExpr() | ||||||||
| 3127 | ->isConstantInitializer(Ctx, IsForRef, Culprit); | ||||||||
| 3128 | case GenericSelectionExprClass: | ||||||||
| 3129 | return cast<GenericSelectionExpr>(this)->getResultExpr() | ||||||||
| 3130 | ->isConstantInitializer(Ctx, IsForRef, Culprit); | ||||||||
| 3131 | case ChooseExprClass: | ||||||||
| 3132 | if (cast<ChooseExpr>(this)->isConditionDependent()) { | ||||||||
| 3133 | if (Culprit) | ||||||||
| 3134 | *Culprit = this; | ||||||||
| 3135 | return false; | ||||||||
| 3136 | } | ||||||||
| 3137 | return cast<ChooseExpr>(this)->getChosenSubExpr() | ||||||||
| 3138 | ->isConstantInitializer(Ctx, IsForRef, Culprit); | ||||||||
| 3139 | case UnaryOperatorClass: { | ||||||||
| 3140 | const UnaryOperator* Exp = cast<UnaryOperator>(this); | ||||||||
| 3141 | if (Exp->getOpcode() == UO_Extension) | ||||||||
| 3142 | return Exp->getSubExpr()->isConstantInitializer(Ctx, false, Culprit); | ||||||||
| 3143 | break; | ||||||||
| 3144 | } | ||||||||
| 3145 | case CXXFunctionalCastExprClass: | ||||||||
| 3146 | case CXXStaticCastExprClass: | ||||||||
| 3147 | case ImplicitCastExprClass: | ||||||||
| 3148 | case CStyleCastExprClass: | ||||||||
| 3149 | case ObjCBridgedCastExprClass: | ||||||||
| 3150 | case CXXDynamicCastExprClass: | ||||||||
| 3151 | case CXXReinterpretCastExprClass: | ||||||||
| 3152 | case CXXAddrspaceCastExprClass: | ||||||||
| 3153 | case CXXConstCastExprClass: { | ||||||||
| 3154 | const CastExpr *CE = cast<CastExpr>(this); | ||||||||
| 3155 | |||||||||
| 3156 | // Handle misc casts we want to ignore. | ||||||||
| 3157 | if (CE->getCastKind() == CK_NoOp || | ||||||||
| 3158 | CE->getCastKind() == CK_LValueToRValue || | ||||||||
| 3159 | CE->getCastKind() == CK_ToUnion || | ||||||||
| 3160 | CE->getCastKind() == CK_ConstructorConversion || | ||||||||
| 3161 | CE->getCastKind() == CK_NonAtomicToAtomic || | ||||||||
| 3162 | CE->getCastKind() == CK_AtomicToNonAtomic || | ||||||||
| 3163 | CE->getCastKind() == CK_IntToOCLSampler) | ||||||||
| 3164 | return CE->getSubExpr()->isConstantInitializer(Ctx, false, Culprit); | ||||||||
| 3165 | |||||||||
| 3166 | break; | ||||||||
| 3167 | } | ||||||||
| 3168 | case MaterializeTemporaryExprClass: | ||||||||
| 3169 | return cast<MaterializeTemporaryExpr>(this) | ||||||||
| 3170 | ->getSubExpr() | ||||||||
| 3171 | ->isConstantInitializer(Ctx, false, Culprit); | ||||||||
| 3172 | |||||||||
| 3173 | case SubstNonTypeTemplateParmExprClass: | ||||||||
| 3174 | return cast<SubstNonTypeTemplateParmExpr>(this)->getReplacement() | ||||||||
| 3175 | ->isConstantInitializer(Ctx, false, Culprit); | ||||||||
| 3176 | case CXXDefaultArgExprClass: | ||||||||
| 3177 | return cast<CXXDefaultArgExpr>(this)->getExpr() | ||||||||
| 3178 | ->isConstantInitializer(Ctx, false, Culprit); | ||||||||
| 3179 | case CXXDefaultInitExprClass: | ||||||||
| 3180 | return cast<CXXDefaultInitExpr>(this)->getExpr() | ||||||||
| 3181 | ->isConstantInitializer(Ctx, false, Culprit); | ||||||||
| 3182 | } | ||||||||
| 3183 | // Allow certain forms of UB in constant initializers: signed integer | ||||||||
| 3184 | // overflow and floating-point division by zero. We'll give a warning on | ||||||||
| 3185 | // these, but they're common enough that we have to accept them. | ||||||||
| 3186 | if (isEvaluatable(Ctx, SE_AllowUndefinedBehavior)) | ||||||||
| 3187 | return true; | ||||||||
| 3188 | if (Culprit) | ||||||||
| 3189 | *Culprit = this; | ||||||||
| 3190 | return false; | ||||||||
| 3191 | } | ||||||||
| 3192 | |||||||||
| 3193 | bool CallExpr::isBuiltinAssumeFalse(const ASTContext &Ctx) const { | ||||||||
| 3194 | const FunctionDecl* FD = getDirectCallee(); | ||||||||
| 3195 | if (!FD || (FD->getBuiltinID() != Builtin::BI__assume && | ||||||||
| 3196 | FD->getBuiltinID() != Builtin::BI__builtin_assume)) | ||||||||
| 3197 | return false; | ||||||||
| 3198 | |||||||||
| 3199 | const Expr* Arg = getArg(0); | ||||||||
| 3200 | bool ArgVal; | ||||||||
| 3201 | return !Arg->isValueDependent() && | ||||||||
| 3202 | Arg->EvaluateAsBooleanCondition(ArgVal, Ctx) && !ArgVal; | ||||||||
| 3203 | } | ||||||||
| 3204 | |||||||||
| 3205 | namespace { | ||||||||
| 3206 | /// Look for any side effects within a Stmt. | ||||||||
| 3207 | class SideEffectFinder : public ConstEvaluatedExprVisitor<SideEffectFinder> { | ||||||||
| 3208 | typedef ConstEvaluatedExprVisitor<SideEffectFinder> Inherited; | ||||||||
| 3209 | const bool IncludePossibleEffects; | ||||||||
| 3210 | bool HasSideEffects; | ||||||||
| 3211 | |||||||||
| 3212 | public: | ||||||||
| 3213 | explicit SideEffectFinder(const ASTContext &Context, bool IncludePossible) | ||||||||
| 3214 | : Inherited(Context), | ||||||||
| 3215 | IncludePossibleEffects(IncludePossible), HasSideEffects(false) { } | ||||||||
| 3216 | |||||||||
| 3217 | bool hasSideEffects() const { return HasSideEffects; } | ||||||||
| 3218 | |||||||||
| 3219 | void VisitDecl(const Decl *D) { | ||||||||
| 3220 | if (!D) | ||||||||
| 3221 | return; | ||||||||
| 3222 | |||||||||
| 3223 | // We assume the caller checks subexpressions (eg, the initializer, VLA | ||||||||
| 3224 | // bounds) for side-effects on our behalf. | ||||||||
| 3225 | if (auto *VD = dyn_cast<VarDecl>(D)) { | ||||||||
| 3226 | // Registering a destructor is a side-effect. | ||||||||
| 3227 | if (IncludePossibleEffects && VD->isThisDeclarationADefinition() && | ||||||||
| 3228 | VD->needsDestruction(Context)) | ||||||||
| 3229 | HasSideEffects = true; | ||||||||
| 3230 | } | ||||||||
| 3231 | } | ||||||||
| 3232 | |||||||||
| 3233 | void VisitDeclStmt(const DeclStmt *DS) { | ||||||||
| 3234 | for (auto *D : DS->decls()) | ||||||||
| 3235 | VisitDecl(D); | ||||||||
| 3236 | Inherited::VisitDeclStmt(DS); | ||||||||
| 3237 | } | ||||||||
| 3238 | |||||||||
| 3239 | void VisitExpr(const Expr *E) { | ||||||||
| 3240 | if (!HasSideEffects && | ||||||||
| 3241 | E->HasSideEffects(Context, IncludePossibleEffects)) | ||||||||
| 3242 | HasSideEffects = true; | ||||||||
| 3243 | } | ||||||||
| 3244 | }; | ||||||||
| 3245 | } | ||||||||
| 3246 | |||||||||
| 3247 | bool Expr::HasSideEffects(const ASTContext &Ctx, | ||||||||
| 3248 | bool IncludePossibleEffects) const { | ||||||||
| 3249 | // In circumstances where we care about definite side effects instead of | ||||||||
| 3250 | // potential side effects, we want to ignore expressions that are part of a | ||||||||
| 3251 | // macro expansion as a potential side effect. | ||||||||
| 3252 | if (!IncludePossibleEffects && getExprLoc().isMacroID()) | ||||||||
| 3253 | return false; | ||||||||
| 3254 | |||||||||
| 3255 | switch (getStmtClass()) { | ||||||||
| 3256 | case NoStmtClass: | ||||||||
| 3257 | #define ABSTRACT_STMT(Type) | ||||||||
| 3258 | #define STMT(Type, Base) case Type##Class: | ||||||||
| 3259 | #define EXPR(Type, Base) | ||||||||
| 3260 | #include "clang/AST/StmtNodes.inc" | ||||||||
| 3261 | llvm_unreachable("unexpected Expr kind")::llvm::llvm_unreachable_internal("unexpected Expr kind", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 3261); | ||||||||
| 3262 | |||||||||
| 3263 | case DependentScopeDeclRefExprClass: | ||||||||
| 3264 | case CXXUnresolvedConstructExprClass: | ||||||||
| 3265 | case CXXDependentScopeMemberExprClass: | ||||||||
| 3266 | case UnresolvedLookupExprClass: | ||||||||
| 3267 | case UnresolvedMemberExprClass: | ||||||||
| 3268 | case PackExpansionExprClass: | ||||||||
| 3269 | case SubstNonTypeTemplateParmPackExprClass: | ||||||||
| 3270 | case FunctionParmPackExprClass: | ||||||||
| 3271 | case TypoExprClass: | ||||||||
| 3272 | case RecoveryExprClass: | ||||||||
| 3273 | case CXXFoldExprClass: | ||||||||
| 3274 | // Make a conservative assumption for dependent nodes. | ||||||||
| 3275 | return IncludePossibleEffects; | ||||||||
| 3276 | |||||||||
| 3277 | case DeclRefExprClass: | ||||||||
| 3278 | case ObjCIvarRefExprClass: | ||||||||
| 3279 | case PredefinedExprClass: | ||||||||
| 3280 | case IntegerLiteralClass: | ||||||||
| 3281 | case FixedPointLiteralClass: | ||||||||
| 3282 | case FloatingLiteralClass: | ||||||||
| 3283 | case ImaginaryLiteralClass: | ||||||||
| 3284 | case StringLiteralClass: | ||||||||
| 3285 | case CharacterLiteralClass: | ||||||||
| 3286 | case OffsetOfExprClass: | ||||||||
| 3287 | case ImplicitValueInitExprClass: | ||||||||
| 3288 | case UnaryExprOrTypeTraitExprClass: | ||||||||
| 3289 | case AddrLabelExprClass: | ||||||||
| 3290 | case GNUNullExprClass: | ||||||||
| 3291 | case ArrayInitIndexExprClass: | ||||||||
| 3292 | case NoInitExprClass: | ||||||||
| 3293 | case CXXBoolLiteralExprClass: | ||||||||
| 3294 | case CXXNullPtrLiteralExprClass: | ||||||||
| 3295 | case CXXThisExprClass: | ||||||||
| 3296 | case CXXScalarValueInitExprClass: | ||||||||
| 3297 | case TypeTraitExprClass: | ||||||||
| 3298 | case ArrayTypeTraitExprClass: | ||||||||
| 3299 | case ExpressionTraitExprClass: | ||||||||
| 3300 | case CXXNoexceptExprClass: | ||||||||
| 3301 | case SizeOfPackExprClass: | ||||||||
| 3302 | case ObjCStringLiteralClass: | ||||||||
| 3303 | case ObjCEncodeExprClass: | ||||||||
| 3304 | case ObjCBoolLiteralExprClass: | ||||||||
| 3305 | case ObjCAvailabilityCheckExprClass: | ||||||||
| 3306 | case CXXUuidofExprClass: | ||||||||
| 3307 | case OpaqueValueExprClass: | ||||||||
| 3308 | case SourceLocExprClass: | ||||||||
| 3309 | case ConceptSpecializationExprClass: | ||||||||
| 3310 | case RequiresExprClass: | ||||||||
| 3311 | // These never have a side-effect. | ||||||||
| 3312 | return false; | ||||||||
| 3313 | |||||||||
| 3314 | case ConstantExprClass: | ||||||||
| 3315 | // FIXME: Move this into the "return false;" block above. | ||||||||
| 3316 | return cast<ConstantExpr>(this)->getSubExpr()->HasSideEffects( | ||||||||
| 3317 | Ctx, IncludePossibleEffects); | ||||||||
| 3318 | |||||||||
| 3319 | case CallExprClass: | ||||||||
| 3320 | case CXXOperatorCallExprClass: | ||||||||
| 3321 | case CXXMemberCallExprClass: | ||||||||
| 3322 | case CUDAKernelCallExprClass: | ||||||||
| 3323 | case UserDefinedLiteralClass: { | ||||||||
| 3324 | // We don't know a call definitely has side effects, except for calls | ||||||||
| 3325 | // to pure/const functions that definitely don't. | ||||||||
| 3326 | // If the call itself is considered side-effect free, check the operands. | ||||||||
| 3327 | const Decl *FD = cast<CallExpr>(this)->getCalleeDecl(); | ||||||||
| 3328 | bool IsPure = FD && (FD->hasAttr<ConstAttr>() || FD->hasAttr<PureAttr>()); | ||||||||
| 3329 | if (IsPure || !IncludePossibleEffects) | ||||||||
| 3330 | break; | ||||||||
| 3331 | return true; | ||||||||
| 3332 | } | ||||||||
| 3333 | |||||||||
| 3334 | case BlockExprClass: | ||||||||
| 3335 | case CXXBindTemporaryExprClass: | ||||||||
| 3336 | if (!IncludePossibleEffects) | ||||||||
| 3337 | break; | ||||||||
| 3338 | return true; | ||||||||
| 3339 | |||||||||
| 3340 | case MSPropertyRefExprClass: | ||||||||
| 3341 | case MSPropertySubscriptExprClass: | ||||||||
| 3342 | case CompoundAssignOperatorClass: | ||||||||
| 3343 | case VAArgExprClass: | ||||||||
| 3344 | case AtomicExprClass: | ||||||||
| 3345 | case CXXThrowExprClass: | ||||||||
| 3346 | case CXXNewExprClass: | ||||||||
| 3347 | case CXXDeleteExprClass: | ||||||||
| 3348 | case CoawaitExprClass: | ||||||||
| 3349 | case DependentCoawaitExprClass: | ||||||||
| 3350 | case CoyieldExprClass: | ||||||||
| 3351 | // These always have a side-effect. | ||||||||
| 3352 | return true; | ||||||||
| 3353 | |||||||||
| 3354 | case StmtExprClass: { | ||||||||
| 3355 | // StmtExprs have a side-effect if any substatement does. | ||||||||
| 3356 | SideEffectFinder Finder(Ctx, IncludePossibleEffects); | ||||||||
| 3357 | Finder.Visit(cast<StmtExpr>(this)->getSubStmt()); | ||||||||
| 3358 | return Finder.hasSideEffects(); | ||||||||
| 3359 | } | ||||||||
| 3360 | |||||||||
| 3361 | case ExprWithCleanupsClass: | ||||||||
| 3362 | if (IncludePossibleEffects) | ||||||||
| 3363 | if (cast<ExprWithCleanups>(this)->cleanupsHaveSideEffects()) | ||||||||
| 3364 | return true; | ||||||||
| 3365 | break; | ||||||||
| 3366 | |||||||||
| 3367 | case ParenExprClass: | ||||||||
| 3368 | case ArraySubscriptExprClass: | ||||||||
| 3369 | case MatrixSubscriptExprClass: | ||||||||
| 3370 | case OMPArraySectionExprClass: | ||||||||
| 3371 | case OMPArrayShapingExprClass: | ||||||||
| 3372 | case OMPIteratorExprClass: | ||||||||
| 3373 | case MemberExprClass: | ||||||||
| 3374 | case ConditionalOperatorClass: | ||||||||
| 3375 | case BinaryConditionalOperatorClass: | ||||||||
| 3376 | case CompoundLiteralExprClass: | ||||||||
| 3377 | case ExtVectorElementExprClass: | ||||||||
| 3378 | case DesignatedInitExprClass: | ||||||||
| 3379 | case DesignatedInitUpdateExprClass: | ||||||||
| 3380 | case ArrayInitLoopExprClass: | ||||||||
| 3381 | case ParenListExprClass: | ||||||||
| 3382 | case CXXPseudoDestructorExprClass: | ||||||||
| 3383 | case CXXRewrittenBinaryOperatorClass: | ||||||||
| 3384 | case CXXStdInitializerListExprClass: | ||||||||
| 3385 | case SubstNonTypeTemplateParmExprClass: | ||||||||
| 3386 | case MaterializeTemporaryExprClass: | ||||||||
| 3387 | case ShuffleVectorExprClass: | ||||||||
| 3388 | case ConvertVectorExprClass: | ||||||||
| 3389 | case AsTypeExprClass: | ||||||||
| 3390 | // These have a side-effect if any subexpression does. | ||||||||
| 3391 | break; | ||||||||
| 3392 | |||||||||
| 3393 | case UnaryOperatorClass: | ||||||||
| 3394 | if (cast<UnaryOperator>(this)->isIncrementDecrementOp()) | ||||||||
| 3395 | return true; | ||||||||
| 3396 | break; | ||||||||
| 3397 | |||||||||
| 3398 | case BinaryOperatorClass: | ||||||||
| 3399 | if (cast<BinaryOperator>(this)->isAssignmentOp()) | ||||||||
| 3400 | return true; | ||||||||
| 3401 | break; | ||||||||
| 3402 | |||||||||
| 3403 | case InitListExprClass: | ||||||||
| 3404 | // FIXME: The children for an InitListExpr doesn't include the array filler. | ||||||||
| 3405 | if (const Expr *E = cast<InitListExpr>(this)->getArrayFiller()) | ||||||||
| 3406 | if (E->HasSideEffects(Ctx, IncludePossibleEffects)) | ||||||||
| 3407 | return true; | ||||||||
| 3408 | break; | ||||||||
| 3409 | |||||||||
| 3410 | case GenericSelectionExprClass: | ||||||||
| 3411 | return cast<GenericSelectionExpr>(this)->getResultExpr()-> | ||||||||
| 3412 | HasSideEffects(Ctx, IncludePossibleEffects); | ||||||||
| 3413 | |||||||||
| 3414 | case ChooseExprClass: | ||||||||
| 3415 | return cast<ChooseExpr>(this)->getChosenSubExpr()->HasSideEffects( | ||||||||
| 3416 | Ctx, IncludePossibleEffects); | ||||||||
| 3417 | |||||||||
| 3418 | case CXXDefaultArgExprClass: | ||||||||
| 3419 | return cast<CXXDefaultArgExpr>(this)->getExpr()->HasSideEffects( | ||||||||
| 3420 | Ctx, IncludePossibleEffects); | ||||||||
| 3421 | |||||||||
| 3422 | case CXXDefaultInitExprClass: { | ||||||||
| 3423 | const FieldDecl *FD = cast<CXXDefaultInitExpr>(this)->getField(); | ||||||||
| 3424 | if (const Expr *E = FD->getInClassInitializer()) | ||||||||
| 3425 | return E->HasSideEffects(Ctx, IncludePossibleEffects); | ||||||||
| 3426 | // If we've not yet parsed the initializer, assume it has side-effects. | ||||||||
| 3427 | return true; | ||||||||
| 3428 | } | ||||||||
| 3429 | |||||||||
| 3430 | case CXXDynamicCastExprClass: { | ||||||||
| 3431 | // A dynamic_cast expression has side-effects if it can throw. | ||||||||
| 3432 | const CXXDynamicCastExpr *DCE = cast<CXXDynamicCastExpr>(this); | ||||||||
| 3433 | if (DCE->getTypeAsWritten()->isReferenceType() && | ||||||||
| 3434 | DCE->getCastKind() == CK_Dynamic) | ||||||||
| 3435 | return true; | ||||||||
| 3436 | } | ||||||||
| 3437 | LLVM_FALLTHROUGH[[gnu::fallthrough]]; | ||||||||
| 3438 | case ImplicitCastExprClass: | ||||||||
| 3439 | case CStyleCastExprClass: | ||||||||
| 3440 | case CXXStaticCastExprClass: | ||||||||
| 3441 | case CXXReinterpretCastExprClass: | ||||||||
| 3442 | case CXXConstCastExprClass: | ||||||||
| 3443 | case CXXAddrspaceCastExprClass: | ||||||||
| 3444 | case CXXFunctionalCastExprClass: | ||||||||
| 3445 | case BuiltinBitCastExprClass: { | ||||||||
| 3446 | // While volatile reads are side-effecting in both C and C++, we treat them | ||||||||
| 3447 | // as having possible (not definite) side-effects. This allows idiomatic | ||||||||
| 3448 | // code to behave without warning, such as sizeof(*v) for a volatile- | ||||||||
| 3449 | // qualified pointer. | ||||||||
| 3450 | if (!IncludePossibleEffects) | ||||||||
| 3451 | break; | ||||||||
| 3452 | |||||||||
| 3453 | const CastExpr *CE = cast<CastExpr>(this); | ||||||||
| 3454 | if (CE->getCastKind() == CK_LValueToRValue && | ||||||||
| 3455 | CE->getSubExpr()->getType().isVolatileQualified()) | ||||||||
| 3456 | return true; | ||||||||
| 3457 | break; | ||||||||
| 3458 | } | ||||||||
| 3459 | |||||||||
| 3460 | case CXXTypeidExprClass: | ||||||||
| 3461 | // typeid might throw if its subexpression is potentially-evaluated, so has | ||||||||
| 3462 | // side-effects in that case whether or not its subexpression does. | ||||||||
| 3463 | return cast<CXXTypeidExpr>(this)->isPotentiallyEvaluated(); | ||||||||
| 3464 | |||||||||
| 3465 | case CXXConstructExprClass: | ||||||||
| 3466 | case CXXTemporaryObjectExprClass: { | ||||||||
| 3467 | const CXXConstructExpr *CE = cast<CXXConstructExpr>(this); | ||||||||
| 3468 | if (!CE->getConstructor()->isTrivial() && IncludePossibleEffects) | ||||||||
| 3469 | return true; | ||||||||
| 3470 | // A trivial constructor does not add any side-effects of its own. Just look | ||||||||
| 3471 | // at its arguments. | ||||||||
| 3472 | break; | ||||||||
| 3473 | } | ||||||||
| 3474 | |||||||||
| 3475 | case CXXInheritedCtorInitExprClass: { | ||||||||
| 3476 | const auto *ICIE = cast<CXXInheritedCtorInitExpr>(this); | ||||||||
| 3477 | if (!ICIE->getConstructor()->isTrivial() && IncludePossibleEffects) | ||||||||
| 3478 | return true; | ||||||||
| 3479 | break; | ||||||||
| 3480 | } | ||||||||
| 3481 | |||||||||
| 3482 | case LambdaExprClass: { | ||||||||
| 3483 | const LambdaExpr *LE = cast<LambdaExpr>(this); | ||||||||
| 3484 | for (Expr *E : LE->capture_inits()) | ||||||||
| 3485 | if (E && E->HasSideEffects(Ctx, IncludePossibleEffects)) | ||||||||
| 3486 | return true; | ||||||||
| 3487 | return false; | ||||||||
| 3488 | } | ||||||||
| 3489 | |||||||||
| 3490 | case PseudoObjectExprClass: { | ||||||||
| 3491 | // Only look for side-effects in the semantic form, and look past | ||||||||
| 3492 | // OpaqueValueExpr bindings in that form. | ||||||||
| 3493 | const PseudoObjectExpr *PO = cast<PseudoObjectExpr>(this); | ||||||||
| 3494 | for (PseudoObjectExpr::const_semantics_iterator I = PO->semantics_begin(), | ||||||||
| 3495 | E = PO->semantics_end(); | ||||||||
| 3496 | I != E; ++I) { | ||||||||
| 3497 | const Expr *Subexpr = *I; | ||||||||
| 3498 | if (const OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(Subexpr)) | ||||||||
| 3499 | Subexpr = OVE->getSourceExpr(); | ||||||||
| 3500 | if (Subexpr->HasSideEffects(Ctx, IncludePossibleEffects)) | ||||||||
| 3501 | return true; | ||||||||
| 3502 | } | ||||||||
| 3503 | return false; | ||||||||
| 3504 | } | ||||||||
| 3505 | |||||||||
| 3506 | case ObjCBoxedExprClass: | ||||||||
| 3507 | case ObjCArrayLiteralClass: | ||||||||
| 3508 | case ObjCDictionaryLiteralClass: | ||||||||
| 3509 | case ObjCSelectorExprClass: | ||||||||
| 3510 | case ObjCProtocolExprClass: | ||||||||
| 3511 | case ObjCIsaExprClass: | ||||||||
| 3512 | case ObjCIndirectCopyRestoreExprClass: | ||||||||
| 3513 | case ObjCSubscriptRefExprClass: | ||||||||
| 3514 | case ObjCBridgedCastExprClass: | ||||||||
| 3515 | case ObjCMessageExprClass: | ||||||||
| 3516 | case ObjCPropertyRefExprClass: | ||||||||
| 3517 | // FIXME: Classify these cases better. | ||||||||
| 3518 | if (IncludePossibleEffects) | ||||||||
| 3519 | return true; | ||||||||
| 3520 | break; | ||||||||
| 3521 | } | ||||||||
| 3522 | |||||||||
| 3523 | // Recurse to children. | ||||||||
| 3524 | for (const Stmt *SubStmt : children()) | ||||||||
| 3525 | if (SubStmt && | ||||||||
| 3526 | cast<Expr>(SubStmt)->HasSideEffects(Ctx, IncludePossibleEffects)) | ||||||||
| 3527 | return true; | ||||||||
| 3528 | |||||||||
| 3529 | return false; | ||||||||
| 3530 | } | ||||||||
| 3531 | |||||||||
| 3532 | FPOptions Expr::getFPFeaturesInEffect(const LangOptions &LO) const { | ||||||||
| 3533 | if (auto Call = dyn_cast<CallExpr>(this)) | ||||||||
| 3534 | return Call->getFPFeaturesInEffect(LO); | ||||||||
| 3535 | if (auto UO = dyn_cast<UnaryOperator>(this)) | ||||||||
| 3536 | return UO->getFPFeaturesInEffect(LO); | ||||||||
| 3537 | if (auto BO = dyn_cast<BinaryOperator>(this)) | ||||||||
| 3538 | return BO->getFPFeaturesInEffect(LO); | ||||||||
| 3539 | if (auto Cast = dyn_cast<CastExpr>(this)) | ||||||||
| 3540 | return Cast->getFPFeaturesInEffect(LO); | ||||||||
| 3541 | return FPOptions::defaultWithoutTrailingStorage(LO); | ||||||||
| 3542 | } | ||||||||
| 3543 | |||||||||
| 3544 | namespace { | ||||||||
| 3545 | /// Look for a call to a non-trivial function within an expression. | ||||||||
| 3546 | class NonTrivialCallFinder : public ConstEvaluatedExprVisitor<NonTrivialCallFinder> | ||||||||
| 3547 | { | ||||||||
| 3548 | typedef ConstEvaluatedExprVisitor<NonTrivialCallFinder> Inherited; | ||||||||
| 3549 | |||||||||
| 3550 | bool NonTrivial; | ||||||||
| 3551 | |||||||||
| 3552 | public: | ||||||||
| 3553 | explicit NonTrivialCallFinder(const ASTContext &Context) | ||||||||
| 3554 | : Inherited(Context), NonTrivial(false) { } | ||||||||
| 3555 | |||||||||
| 3556 | bool hasNonTrivialCall() const { return NonTrivial; } | ||||||||
| 3557 | |||||||||
| 3558 | void VisitCallExpr(const CallExpr *E) { | ||||||||
| 3559 | if (const CXXMethodDecl *Method | ||||||||
| 3560 | = dyn_cast_or_null<const CXXMethodDecl>(E->getCalleeDecl())) { | ||||||||
| 3561 | if (Method->isTrivial()) { | ||||||||
| 3562 | // Recurse to children of the call. | ||||||||
| 3563 | Inherited::VisitStmt(E); | ||||||||
| 3564 | return; | ||||||||
| 3565 | } | ||||||||
| 3566 | } | ||||||||
| 3567 | |||||||||
| 3568 | NonTrivial = true; | ||||||||
| 3569 | } | ||||||||
| 3570 | |||||||||
| 3571 | void VisitCXXConstructExpr(const CXXConstructExpr *E) { | ||||||||
| 3572 | if (E->getConstructor()->isTrivial()) { | ||||||||
| 3573 | // Recurse to children of the call. | ||||||||
| 3574 | Inherited::VisitStmt(E); | ||||||||
| 3575 | return; | ||||||||
| 3576 | } | ||||||||
| 3577 | |||||||||
| 3578 | NonTrivial = true; | ||||||||
| 3579 | } | ||||||||
| 3580 | |||||||||
| 3581 | void VisitCXXBindTemporaryExpr(const CXXBindTemporaryExpr *E) { | ||||||||
| 3582 | if (E->getTemporary()->getDestructor()->isTrivial()) { | ||||||||
| 3583 | Inherited::VisitStmt(E); | ||||||||
| 3584 | return; | ||||||||
| 3585 | } | ||||||||
| 3586 | |||||||||
| 3587 | NonTrivial = true; | ||||||||
| 3588 | } | ||||||||
| 3589 | }; | ||||||||
| 3590 | } | ||||||||
| 3591 | |||||||||
| 3592 | bool Expr::hasNonTrivialCall(const ASTContext &Ctx) const { | ||||||||
| 3593 | NonTrivialCallFinder Finder(Ctx); | ||||||||
| 3594 | Finder.Visit(this); | ||||||||
| 3595 | return Finder.hasNonTrivialCall(); | ||||||||
| 3596 | } | ||||||||
| 3597 | |||||||||
| 3598 | /// isNullPointerConstant - C99 6.3.2.3p3 - Return whether this is a null | ||||||||
| 3599 | /// pointer constant or not, as well as the specific kind of constant detected. | ||||||||
| 3600 | /// Null pointer constants can be integer constant expressions with the | ||||||||
| 3601 | /// value zero, casts of zero to void*, nullptr (C++0X), or __null | ||||||||
| 3602 | /// (a GNU extension). | ||||||||
| 3603 | Expr::NullPointerConstantKind | ||||||||
| 3604 | Expr::isNullPointerConstant(ASTContext &Ctx, | ||||||||
| 3605 | NullPointerConstantValueDependence NPC) const { | ||||||||
| 3606 | if (isValueDependent() && | ||||||||
| 3607 | (!Ctx.getLangOpts().CPlusPlus11 || Ctx.getLangOpts().MSVCCompat)) { | ||||||||
| 3608 | // Error-dependent expr should never be a null pointer. | ||||||||
| 3609 | if (containsErrors()) | ||||||||
| 3610 | return NPCK_NotNull; | ||||||||
| 3611 | switch (NPC) { | ||||||||
| 3612 | case NPC_NeverValueDependent: | ||||||||
| 3613 | llvm_unreachable("Unexpected value dependent expression!")::llvm::llvm_unreachable_internal("Unexpected value dependent expression!" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 3613); | ||||||||
| 3614 | case NPC_ValueDependentIsNull: | ||||||||
| 3615 | if (isTypeDependent() || getType()->isIntegralType(Ctx)) | ||||||||
| 3616 | return NPCK_ZeroExpression; | ||||||||
| 3617 | else | ||||||||
| 3618 | return NPCK_NotNull; | ||||||||
| 3619 | |||||||||
| 3620 | case NPC_ValueDependentIsNotNull: | ||||||||
| 3621 | return NPCK_NotNull; | ||||||||
| 3622 | } | ||||||||
| 3623 | } | ||||||||
| 3624 | |||||||||
| 3625 | // Strip off a cast to void*, if it exists. Except in C++. | ||||||||
| 3626 | if (const ExplicitCastExpr *CE = dyn_cast<ExplicitCastExpr>(this)) { | ||||||||
| 3627 | if (!Ctx.getLangOpts().CPlusPlus) { | ||||||||
| 3628 | // Check that it is a cast to void*. | ||||||||
| 3629 | if (const PointerType *PT = CE->getType()->getAs<PointerType>()) { | ||||||||
| 3630 | QualType Pointee = PT->getPointeeType(); | ||||||||
| 3631 | Qualifiers Qs = Pointee.getQualifiers(); | ||||||||
| 3632 | // Only (void*)0 or equivalent are treated as nullptr. If pointee type | ||||||||
| 3633 | // has non-default address space it is not treated as nullptr. | ||||||||
| 3634 | // (__generic void*)0 in OpenCL 2.0 should not be treated as nullptr | ||||||||
| 3635 | // since it cannot be assigned to a pointer to constant address space. | ||||||||
| 3636 | if ((Ctx.getLangOpts().OpenCLVersion >= 200 && | ||||||||
| 3637 | Pointee.getAddressSpace() == LangAS::opencl_generic) || | ||||||||
| 3638 | (Ctx.getLangOpts().OpenCL && | ||||||||
| 3639 | Ctx.getLangOpts().OpenCLVersion < 200 && | ||||||||
| 3640 | Pointee.getAddressSpace() == LangAS::opencl_private)) | ||||||||
| 3641 | Qs.removeAddressSpace(); | ||||||||
| 3642 | |||||||||
| 3643 | if (Pointee->isVoidType() && Qs.empty() && // to void* | ||||||||
| 3644 | CE->getSubExpr()->getType()->isIntegerType()) // from int | ||||||||
| 3645 | return CE->getSubExpr()->isNullPointerConstant(Ctx, NPC); | ||||||||
| 3646 | } | ||||||||
| 3647 | } | ||||||||
| 3648 | } else if (const ImplicitCastExpr *ICE = dyn_cast<ImplicitCastExpr>(this)) { | ||||||||
| 3649 | // Ignore the ImplicitCastExpr type entirely. | ||||||||
| 3650 | return ICE->getSubExpr()->isNullPointerConstant(Ctx, NPC); | ||||||||
| 3651 | } else if (const ParenExpr *PE = dyn_cast<ParenExpr>(this)) { | ||||||||
| 3652 | // Accept ((void*)0) as a null pointer constant, as many other | ||||||||
| 3653 | // implementations do. | ||||||||
| 3654 | return PE->getSubExpr()->isNullPointerConstant(Ctx, NPC); | ||||||||
| 3655 | } else if (const GenericSelectionExpr *GE = | ||||||||
| 3656 | dyn_cast<GenericSelectionExpr>(this)) { | ||||||||
| 3657 | if (GE->isResultDependent()) | ||||||||
| 3658 | return NPCK_NotNull; | ||||||||
| 3659 | return GE->getResultExpr()->isNullPointerConstant(Ctx, NPC); | ||||||||
| 3660 | } else if (const ChooseExpr *CE = dyn_cast<ChooseExpr>(this)) { | ||||||||
| 3661 | if (CE->isConditionDependent()) | ||||||||
| 3662 | return NPCK_NotNull; | ||||||||
| 3663 | return CE->getChosenSubExpr()->isNullPointerConstant(Ctx, NPC); | ||||||||
| 3664 | } else if (const CXXDefaultArgExpr *DefaultArg | ||||||||
| 3665 | = dyn_cast<CXXDefaultArgExpr>(this)) { | ||||||||
| 3666 | // See through default argument expressions. | ||||||||
| 3667 | return DefaultArg->getExpr()->isNullPointerConstant(Ctx, NPC); | ||||||||
| 3668 | } else if (const CXXDefaultInitExpr *DefaultInit | ||||||||
| 3669 | = dyn_cast<CXXDefaultInitExpr>(this)) { | ||||||||
| 3670 | // See through default initializer expressions. | ||||||||
| 3671 | return DefaultInit->getExpr()->isNullPointerConstant(Ctx, NPC); | ||||||||
| 3672 | } else if (isa<GNUNullExpr>(this)) { | ||||||||
| 3673 | // The GNU __null extension is always a null pointer constant. | ||||||||
| 3674 | return NPCK_GNUNull; | ||||||||
| 3675 | } else if (const MaterializeTemporaryExpr *M | ||||||||
| 3676 | = dyn_cast<MaterializeTemporaryExpr>(this)) { | ||||||||
| 3677 | return M->getSubExpr()->isNullPointerConstant(Ctx, NPC); | ||||||||
| 3678 | } else if (const OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(this)) { | ||||||||
| 3679 | if (const Expr *Source = OVE->getSourceExpr()) | ||||||||
| 3680 | return Source->isNullPointerConstant(Ctx, NPC); | ||||||||
| 3681 | } | ||||||||
| 3682 | |||||||||
| 3683 | // If the expression has no type information, it cannot be a null pointer | ||||||||
| 3684 | // constant. | ||||||||
| 3685 | if (getType().isNull()) | ||||||||
| 3686 | return NPCK_NotNull; | ||||||||
| 3687 | |||||||||
| 3688 | // C++11 nullptr_t is always a null pointer constant. | ||||||||
| 3689 | if (getType()->isNullPtrType()) | ||||||||
| 3690 | return NPCK_CXX11_nullptr; | ||||||||
| 3691 | |||||||||
| 3692 | if (const RecordType *UT = getType()->getAsUnionType()) | ||||||||
| 3693 | if (!Ctx.getLangOpts().CPlusPlus11 && | ||||||||
| 3694 | UT && UT->getDecl()->hasAttr<TransparentUnionAttr>()) | ||||||||
| 3695 | if (const CompoundLiteralExpr *CLE = dyn_cast<CompoundLiteralExpr>(this)){ | ||||||||
| 3696 | const Expr *InitExpr = CLE->getInitializer(); | ||||||||
| 3697 | if (const InitListExpr *ILE = dyn_cast<InitListExpr>(InitExpr)) | ||||||||
| 3698 | return ILE->getInit(0)->isNullPointerConstant(Ctx, NPC); | ||||||||
| 3699 | } | ||||||||
| 3700 | // This expression must be an integer type. | ||||||||
| 3701 | if (!getType()->isIntegerType() || | ||||||||
| 3702 | (Ctx.getLangOpts().CPlusPlus && getType()->isEnumeralType())) | ||||||||
| 3703 | return NPCK_NotNull; | ||||||||
| 3704 | |||||||||
| 3705 | if (Ctx.getLangOpts().CPlusPlus11) { | ||||||||
| 3706 | // C++11 [conv.ptr]p1: A null pointer constant is an integer literal with | ||||||||
| 3707 | // value zero or a prvalue of type std::nullptr_t. | ||||||||
| 3708 | // Microsoft mode permits C++98 rules reflecting MSVC behavior. | ||||||||
| 3709 | const IntegerLiteral *Lit = dyn_cast<IntegerLiteral>(this); | ||||||||
| 3710 | if (Lit && !Lit->getValue()) | ||||||||
| 3711 | return NPCK_ZeroLiteral; | ||||||||
| 3712 | if (!Ctx.getLangOpts().MSVCCompat || !isCXX98IntegralConstantExpr(Ctx)) | ||||||||
| 3713 | return NPCK_NotNull; | ||||||||
| 3714 | } else { | ||||||||
| 3715 | // If we have an integer constant expression, we need to *evaluate* it and | ||||||||
| 3716 | // test for the value 0. | ||||||||
| 3717 | if (!isIntegerConstantExpr(Ctx)) | ||||||||
| 3718 | return NPCK_NotNull; | ||||||||
| 3719 | } | ||||||||
| 3720 | |||||||||
| 3721 | if (EvaluateKnownConstInt(Ctx) != 0) | ||||||||
| 3722 | return NPCK_NotNull; | ||||||||
| 3723 | |||||||||
| 3724 | if (isa<IntegerLiteral>(this)) | ||||||||
| 3725 | return NPCK_ZeroLiteral; | ||||||||
| 3726 | return NPCK_ZeroExpression; | ||||||||
| 3727 | } | ||||||||
| 3728 | |||||||||
| 3729 | /// If this expression is an l-value for an Objective C | ||||||||
| 3730 | /// property, find the underlying property reference expression. | ||||||||
| 3731 | const ObjCPropertyRefExpr *Expr::getObjCProperty() const { | ||||||||
| 3732 | const Expr *E = this; | ||||||||
| 3733 | while (true) { | ||||||||
| 3734 | assert((E->getValueKind() == VK_LValue &&(((E->getValueKind() == VK_LValue && E->getObjectKind () == OK_ObjCProperty) && "expression is not a property reference" ) ? static_cast<void> (0) : __assert_fail ("(E->getValueKind() == VK_LValue && E->getObjectKind() == OK_ObjCProperty) && \"expression is not a property reference\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 3736, __PRETTY_FUNCTION__)) | ||||||||
| 3735 | E->getObjectKind() == OK_ObjCProperty) &&(((E->getValueKind() == VK_LValue && E->getObjectKind () == OK_ObjCProperty) && "expression is not a property reference" ) ? static_cast<void> (0) : __assert_fail ("(E->getValueKind() == VK_LValue && E->getObjectKind() == OK_ObjCProperty) && \"expression is not a property reference\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 3736, __PRETTY_FUNCTION__)) | ||||||||
| 3736 | "expression is not a property reference")(((E->getValueKind() == VK_LValue && E->getObjectKind () == OK_ObjCProperty) && "expression is not a property reference" ) ? static_cast<void> (0) : __assert_fail ("(E->getValueKind() == VK_LValue && E->getObjectKind() == OK_ObjCProperty) && \"expression is not a property reference\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 3736, __PRETTY_FUNCTION__)); | ||||||||
| 3737 | E = E->IgnoreParenCasts(); | ||||||||
| 3738 | if (const BinaryOperator *BO = dyn_cast<BinaryOperator>(E)) { | ||||||||
| 3739 | if (BO->getOpcode() == BO_Comma) { | ||||||||
| 3740 | E = BO->getRHS(); | ||||||||
| 3741 | continue; | ||||||||
| 3742 | } | ||||||||
| 3743 | } | ||||||||
| 3744 | |||||||||
| 3745 | break; | ||||||||
| 3746 | } | ||||||||
| 3747 | |||||||||
| 3748 | return cast<ObjCPropertyRefExpr>(E); | ||||||||
| 3749 | } | ||||||||
| 3750 | |||||||||
| 3751 | bool Expr::isObjCSelfExpr() const { | ||||||||
| 3752 | const Expr *E = IgnoreParenImpCasts(); | ||||||||
| 3753 | |||||||||
| 3754 | const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E); | ||||||||
| 3755 | if (!DRE) | ||||||||
| 3756 | return false; | ||||||||
| 3757 | |||||||||
| 3758 | const ImplicitParamDecl *Param = dyn_cast<ImplicitParamDecl>(DRE->getDecl()); | ||||||||
| 3759 | if (!Param) | ||||||||
| 3760 | return false; | ||||||||
| 3761 | |||||||||
| 3762 | const ObjCMethodDecl *M = dyn_cast<ObjCMethodDecl>(Param->getDeclContext()); | ||||||||
| 3763 | if (!M) | ||||||||
| 3764 | return false; | ||||||||
| 3765 | |||||||||
| 3766 | return M->getSelfDecl() == Param; | ||||||||
| 3767 | } | ||||||||
| 3768 | |||||||||
| 3769 | FieldDecl *Expr::getSourceBitField() { | ||||||||
| 3770 | Expr *E = this->IgnoreParens(); | ||||||||
| 3771 | |||||||||
| 3772 | while (ImplicitCastExpr *ICE = dyn_cast<ImplicitCastExpr>(E)) { | ||||||||
| 3773 | if (ICE->getCastKind() == CK_LValueToRValue || | ||||||||
| 3774 | (ICE->getValueKind() != VK_RValue && ICE->getCastKind() == CK_NoOp)) | ||||||||
| 3775 | E = ICE->getSubExpr()->IgnoreParens(); | ||||||||
| 3776 | else | ||||||||
| 3777 | break; | ||||||||
| 3778 | } | ||||||||
| 3779 | |||||||||
| 3780 | if (MemberExpr *MemRef = dyn_cast<MemberExpr>(E)) | ||||||||
| 3781 | if (FieldDecl *Field = dyn_cast<FieldDecl>(MemRef->getMemberDecl())) | ||||||||
| 3782 | if (Field->isBitField()) | ||||||||
| 3783 | return Field; | ||||||||
| 3784 | |||||||||
| 3785 | if (ObjCIvarRefExpr *IvarRef = dyn_cast<ObjCIvarRefExpr>(E)) { | ||||||||
| 3786 | FieldDecl *Ivar = IvarRef->getDecl(); | ||||||||
| 3787 | if (Ivar->isBitField()) | ||||||||
| 3788 | return Ivar; | ||||||||
| 3789 | } | ||||||||
| 3790 | |||||||||
| 3791 | if (DeclRefExpr *DeclRef = dyn_cast<DeclRefExpr>(E)) { | ||||||||
| 3792 | if (FieldDecl *Field = dyn_cast<FieldDecl>(DeclRef->getDecl())) | ||||||||
| 3793 | if (Field->isBitField()) | ||||||||
| 3794 | return Field; | ||||||||
| 3795 | |||||||||
| 3796 | if (BindingDecl *BD = dyn_cast<BindingDecl>(DeclRef->getDecl())) | ||||||||
| 3797 | if (Expr *E = BD->getBinding()) | ||||||||
| 3798 | return E->getSourceBitField(); | ||||||||
| 3799 | } | ||||||||
| 3800 | |||||||||
| 3801 | if (BinaryOperator *BinOp = dyn_cast<BinaryOperator>(E)) { | ||||||||
| 3802 | if (BinOp->isAssignmentOp() && BinOp->getLHS()) | ||||||||
| 3803 | return BinOp->getLHS()->getSourceBitField(); | ||||||||
| 3804 | |||||||||
| 3805 | if (BinOp->getOpcode() == BO_Comma && BinOp->getRHS()) | ||||||||
| 3806 | return BinOp->getRHS()->getSourceBitField(); | ||||||||
| 3807 | } | ||||||||
| 3808 | |||||||||
| 3809 | if (UnaryOperator *UnOp = dyn_cast<UnaryOperator>(E)) | ||||||||
| 3810 | if (UnOp->isPrefix() && UnOp->isIncrementDecrementOp()) | ||||||||
| 3811 | return UnOp->getSubExpr()->getSourceBitField(); | ||||||||
| 3812 | |||||||||
| 3813 | return nullptr; | ||||||||
| 3814 | } | ||||||||
| 3815 | |||||||||
| 3816 | bool Expr::refersToVectorElement() const { | ||||||||
| 3817 | // FIXME: Why do we not just look at the ObjectKind here? | ||||||||
| 3818 | const Expr *E = this->IgnoreParens(); | ||||||||
| 3819 | |||||||||
| 3820 | while (const ImplicitCastExpr *ICE = dyn_cast<ImplicitCastExpr>(E)) { | ||||||||
| 3821 | if (ICE->getValueKind() != VK_RValue && | ||||||||
| 3822 | ICE->getCastKind() == CK_NoOp) | ||||||||
| 3823 | E = ICE->getSubExpr()->IgnoreParens(); | ||||||||
| 3824 | else | ||||||||
| 3825 | break; | ||||||||
| 3826 | } | ||||||||
| 3827 | |||||||||
| 3828 | if (const ArraySubscriptExpr *ASE = dyn_cast<ArraySubscriptExpr>(E)) | ||||||||
| 3829 | return ASE->getBase()->getType()->isVectorType(); | ||||||||
| 3830 | |||||||||
| 3831 | if (isa<ExtVectorElementExpr>(E)) | ||||||||
| 3832 | return true; | ||||||||
| 3833 | |||||||||
| 3834 | if (auto *DRE = dyn_cast<DeclRefExpr>(E)) | ||||||||
| 3835 | if (auto *BD = dyn_cast<BindingDecl>(DRE->getDecl())) | ||||||||
| 3836 | if (auto *E = BD->getBinding()) | ||||||||
| 3837 | return E->refersToVectorElement(); | ||||||||
| 3838 | |||||||||
| 3839 | return false; | ||||||||
| 3840 | } | ||||||||
| 3841 | |||||||||
| 3842 | bool Expr::refersToGlobalRegisterVar() const { | ||||||||
| 3843 | const Expr *E = this->IgnoreParenImpCasts(); | ||||||||
| 3844 | |||||||||
| 3845 | if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E)) | ||||||||
| 3846 | if (const auto *VD = dyn_cast<VarDecl>(DRE->getDecl())) | ||||||||
| 3847 | if (VD->getStorageClass() == SC_Register && | ||||||||
| 3848 | VD->hasAttr<AsmLabelAttr>() && !VD->isLocalVarDecl()) | ||||||||
| 3849 | return true; | ||||||||
| 3850 | |||||||||
| 3851 | return false; | ||||||||
| 3852 | } | ||||||||
| 3853 | |||||||||
| 3854 | bool Expr::isSameComparisonOperand(const Expr* E1, const Expr* E2) { | ||||||||
| 3855 | E1 = E1->IgnoreParens(); | ||||||||
| 3856 | E2 = E2->IgnoreParens(); | ||||||||
| 3857 | |||||||||
| 3858 | if (E1->getStmtClass() != E2->getStmtClass()) | ||||||||
| 3859 | return false; | ||||||||
| 3860 | |||||||||
| 3861 | switch (E1->getStmtClass()) { | ||||||||
| 3862 | default: | ||||||||
| 3863 | return false; | ||||||||
| 3864 | case CXXThisExprClass: | ||||||||
| 3865 | return true; | ||||||||
| 3866 | case DeclRefExprClass: { | ||||||||
| 3867 | // DeclRefExpr without an ImplicitCastExpr can happen for integral | ||||||||
| 3868 | // template parameters. | ||||||||
| 3869 | const auto *DRE1 = cast<DeclRefExpr>(E1); | ||||||||
| 3870 | const auto *DRE2 = cast<DeclRefExpr>(E2); | ||||||||
| 3871 | return DRE1->isRValue() && DRE2->isRValue() && | ||||||||
| 3872 | DRE1->getDecl() == DRE2->getDecl(); | ||||||||
| 3873 | } | ||||||||
| 3874 | case ImplicitCastExprClass: { | ||||||||
| 3875 | // Peel off implicit casts. | ||||||||
| 3876 | while (true) { | ||||||||
| 3877 | const auto *ICE1 = dyn_cast<ImplicitCastExpr>(E1); | ||||||||
| 3878 | const auto *ICE2 = dyn_cast<ImplicitCastExpr>(E2); | ||||||||
| 3879 | if (!ICE1 || !ICE2) | ||||||||
| 3880 | return false; | ||||||||
| 3881 | if (ICE1->getCastKind() != ICE2->getCastKind()) | ||||||||
| 3882 | return false; | ||||||||
| 3883 | E1 = ICE1->getSubExpr()->IgnoreParens(); | ||||||||
| 3884 | E2 = ICE2->getSubExpr()->IgnoreParens(); | ||||||||
| 3885 | // The final cast must be one of these types. | ||||||||
| 3886 | if (ICE1->getCastKind() == CK_LValueToRValue || | ||||||||
| 3887 | ICE1->getCastKind() == CK_ArrayToPointerDecay || | ||||||||
| 3888 | ICE1->getCastKind() == CK_FunctionToPointerDecay) { | ||||||||
| 3889 | break; | ||||||||
| 3890 | } | ||||||||
| 3891 | } | ||||||||
| 3892 | |||||||||
| 3893 | const auto *DRE1 = dyn_cast<DeclRefExpr>(E1); | ||||||||
| 3894 | const auto *DRE2 = dyn_cast<DeclRefExpr>(E2); | ||||||||
| 3895 | if (DRE1 && DRE2) | ||||||||
| 3896 | return declaresSameEntity(DRE1->getDecl(), DRE2->getDecl()); | ||||||||
| 3897 | |||||||||
| 3898 | const auto *Ivar1 = dyn_cast<ObjCIvarRefExpr>(E1); | ||||||||
| 3899 | const auto *Ivar2 = dyn_cast<ObjCIvarRefExpr>(E2); | ||||||||
| 3900 | if (Ivar1 && Ivar2) { | ||||||||
| 3901 | return Ivar1->isFreeIvar() && Ivar2->isFreeIvar() && | ||||||||
| 3902 | declaresSameEntity(Ivar1->getDecl(), Ivar2->getDecl()); | ||||||||
| 3903 | } | ||||||||
| 3904 | |||||||||
| 3905 | const auto *Array1 = dyn_cast<ArraySubscriptExpr>(E1); | ||||||||
| 3906 | const auto *Array2 = dyn_cast<ArraySubscriptExpr>(E2); | ||||||||
| 3907 | if (Array1 && Array2) { | ||||||||
| 3908 | if (!isSameComparisonOperand(Array1->getBase(), Array2->getBase())) | ||||||||
| 3909 | return false; | ||||||||
| 3910 | |||||||||
| 3911 | auto Idx1 = Array1->getIdx(); | ||||||||
| 3912 | auto Idx2 = Array2->getIdx(); | ||||||||
| 3913 | const auto Integer1 = dyn_cast<IntegerLiteral>(Idx1); | ||||||||
| 3914 | const auto Integer2 = dyn_cast<IntegerLiteral>(Idx2); | ||||||||
| 3915 | if (Integer1 && Integer2) { | ||||||||
| 3916 | if (!llvm::APInt::isSameValue(Integer1->getValue(), | ||||||||
| 3917 | Integer2->getValue())) | ||||||||
| 3918 | return false; | ||||||||
| 3919 | } else { | ||||||||
| 3920 | if (!isSameComparisonOperand(Idx1, Idx2)) | ||||||||
| 3921 | return false; | ||||||||
| 3922 | } | ||||||||
| 3923 | |||||||||
| 3924 | return true; | ||||||||
| 3925 | } | ||||||||
| 3926 | |||||||||
| 3927 | // Walk the MemberExpr chain. | ||||||||
| 3928 | while (isa<MemberExpr>(E1) && isa<MemberExpr>(E2)) { | ||||||||
| 3929 | const auto *ME1 = cast<MemberExpr>(E1); | ||||||||
| 3930 | const auto *ME2 = cast<MemberExpr>(E2); | ||||||||
| 3931 | if (!declaresSameEntity(ME1->getMemberDecl(), ME2->getMemberDecl())) | ||||||||
| 3932 | return false; | ||||||||
| 3933 | if (const auto *D = dyn_cast<VarDecl>(ME1->getMemberDecl())) | ||||||||
| 3934 | if (D->isStaticDataMember()) | ||||||||
| 3935 | return true; | ||||||||
| 3936 | E1 = ME1->getBase()->IgnoreParenImpCasts(); | ||||||||
| 3937 | E2 = ME2->getBase()->IgnoreParenImpCasts(); | ||||||||
| 3938 | } | ||||||||
| 3939 | |||||||||
| 3940 | if (isa<CXXThisExpr>(E1) && isa<CXXThisExpr>(E2)) | ||||||||
| 3941 | return true; | ||||||||
| 3942 | |||||||||
| 3943 | // A static member variable can end the MemberExpr chain with either | ||||||||
| 3944 | // a MemberExpr or a DeclRefExpr. | ||||||||
| 3945 | auto getAnyDecl = [](const Expr *E) -> const ValueDecl * { | ||||||||
| 3946 | if (const auto *DRE = dyn_cast<DeclRefExpr>(E)) | ||||||||
| 3947 | return DRE->getDecl(); | ||||||||
| 3948 | if (const auto *ME = dyn_cast<MemberExpr>(E)) | ||||||||
| 3949 | return ME->getMemberDecl(); | ||||||||
| 3950 | return nullptr; | ||||||||
| 3951 | }; | ||||||||
| 3952 | |||||||||
| 3953 | const ValueDecl *VD1 = getAnyDecl(E1); | ||||||||
| 3954 | const ValueDecl *VD2 = getAnyDecl(E2); | ||||||||
| 3955 | return declaresSameEntity(VD1, VD2); | ||||||||
| 3956 | } | ||||||||
| 3957 | } | ||||||||
| 3958 | } | ||||||||
| 3959 | |||||||||
| 3960 | /// isArrow - Return true if the base expression is a pointer to vector, | ||||||||
| 3961 | /// return false if the base expression is a vector. | ||||||||
| 3962 | bool ExtVectorElementExpr::isArrow() const { | ||||||||
| 3963 | return getBase()->getType()->isPointerType(); | ||||||||
| 3964 | } | ||||||||
| 3965 | |||||||||
| 3966 | unsigned ExtVectorElementExpr::getNumElements() const { | ||||||||
| 3967 | if (const VectorType *VT = getType()->getAs<VectorType>()) | ||||||||
| 3968 | return VT->getNumElements(); | ||||||||
| 3969 | return 1; | ||||||||
| 3970 | } | ||||||||
| 3971 | |||||||||
| 3972 | /// containsDuplicateElements - Return true if any element access is repeated. | ||||||||
| 3973 | bool ExtVectorElementExpr::containsDuplicateElements() const { | ||||||||
| 3974 | // FIXME: Refactor this code to an accessor on the AST node which returns the | ||||||||
| 3975 | // "type" of component access, and share with code below and in Sema. | ||||||||
| 3976 | StringRef Comp = Accessor->getName(); | ||||||||
| 3977 | |||||||||
| 3978 | // Halving swizzles do not contain duplicate elements. | ||||||||
| 3979 | if (Comp == "hi" || Comp == "lo" || Comp == "even" || Comp == "odd") | ||||||||
| 3980 | return false; | ||||||||
| 3981 | |||||||||
| 3982 | // Advance past s-char prefix on hex swizzles. | ||||||||
| 3983 | if (Comp[0] == 's' || Comp[0] == 'S') | ||||||||
| 3984 | Comp = Comp.substr(1); | ||||||||
| 3985 | |||||||||
| 3986 | for (unsigned i = 0, e = Comp.size(); i != e; ++i) | ||||||||
| 3987 | if (Comp.substr(i + 1).find(Comp[i]) != StringRef::npos) | ||||||||
| 3988 | return true; | ||||||||
| 3989 | |||||||||
| 3990 | return false; | ||||||||
| 3991 | } | ||||||||
| 3992 | |||||||||
| 3993 | /// getEncodedElementAccess - We encode the fields as a llvm ConstantArray. | ||||||||
| 3994 | void ExtVectorElementExpr::getEncodedElementAccess( | ||||||||
| 3995 | SmallVectorImpl<uint32_t> &Elts) const { | ||||||||
| 3996 | StringRef Comp = Accessor->getName(); | ||||||||
| 3997 | bool isNumericAccessor = false; | ||||||||
| 3998 | if (Comp[0] == 's' || Comp[0] == 'S') { | ||||||||
| 3999 | Comp = Comp.substr(1); | ||||||||
| 4000 | isNumericAccessor = true; | ||||||||
| 4001 | } | ||||||||
| 4002 | |||||||||
| 4003 | bool isHi = Comp == "hi"; | ||||||||
| 4004 | bool isLo = Comp == "lo"; | ||||||||
| 4005 | bool isEven = Comp == "even"; | ||||||||
| 4006 | bool isOdd = Comp == "odd"; | ||||||||
| 4007 | |||||||||
| 4008 | for (unsigned i = 0, e = getNumElements(); i != e; ++i) { | ||||||||
| 4009 | uint64_t Index; | ||||||||
| 4010 | |||||||||
| 4011 | if (isHi) | ||||||||
| 4012 | Index = e + i; | ||||||||
| 4013 | else if (isLo) | ||||||||
| 4014 | Index = i; | ||||||||
| 4015 | else if (isEven) | ||||||||
| 4016 | Index = 2 * i; | ||||||||
| 4017 | else if (isOdd) | ||||||||
| 4018 | Index = 2 * i + 1; | ||||||||
| 4019 | else | ||||||||
| 4020 | Index = ExtVectorType::getAccessorIdx(Comp[i], isNumericAccessor); | ||||||||
| 4021 | |||||||||
| 4022 | Elts.push_back(Index); | ||||||||
| 4023 | } | ||||||||
| 4024 | } | ||||||||
| 4025 | |||||||||
| 4026 | ShuffleVectorExpr::ShuffleVectorExpr(const ASTContext &C, ArrayRef<Expr *> args, | ||||||||
| 4027 | QualType Type, SourceLocation BLoc, | ||||||||
| 4028 | SourceLocation RP) | ||||||||
| 4029 | : Expr(ShuffleVectorExprClass, Type, VK_RValue, OK_Ordinary), | ||||||||
| 4030 | BuiltinLoc(BLoc), RParenLoc(RP), NumExprs(args.size()) { | ||||||||
| 4031 | SubExprs = new (C) Stmt*[args.size()]; | ||||||||
| 4032 | for (unsigned i = 0; i != args.size(); i++) | ||||||||
| 4033 | SubExprs[i] = args[i]; | ||||||||
| 4034 | |||||||||
| 4035 | setDependence(computeDependence(this)); | ||||||||
| 4036 | } | ||||||||
| 4037 | |||||||||
| 4038 | void ShuffleVectorExpr::setExprs(const ASTContext &C, ArrayRef<Expr *> Exprs) { | ||||||||
| 4039 | if (SubExprs) C.Deallocate(SubExprs); | ||||||||
| 4040 | |||||||||
| 4041 | this->NumExprs = Exprs.size(); | ||||||||
| 4042 | SubExprs = new (C) Stmt*[NumExprs]; | ||||||||
| 4043 | memcpy(SubExprs, Exprs.data(), sizeof(Expr *) * Exprs.size()); | ||||||||
| 4044 | } | ||||||||
| 4045 | |||||||||
| 4046 | GenericSelectionExpr::GenericSelectionExpr( | ||||||||
| 4047 | const ASTContext &, SourceLocation GenericLoc, Expr *ControllingExpr, | ||||||||
| 4048 | ArrayRef<TypeSourceInfo *> AssocTypes, ArrayRef<Expr *> AssocExprs, | ||||||||
| 4049 | SourceLocation DefaultLoc, SourceLocation RParenLoc, | ||||||||
| 4050 | bool ContainsUnexpandedParameterPack, unsigned ResultIndex) | ||||||||
| 4051 | : Expr(GenericSelectionExprClass, AssocExprs[ResultIndex]->getType(), | ||||||||
| 4052 | AssocExprs[ResultIndex]->getValueKind(), | ||||||||
| 4053 | AssocExprs[ResultIndex]->getObjectKind()), | ||||||||
| 4054 | NumAssocs(AssocExprs.size()), ResultIndex(ResultIndex), | ||||||||
| 4055 | DefaultLoc(DefaultLoc), RParenLoc(RParenLoc) { | ||||||||
| 4056 | assert(AssocTypes.size() == AssocExprs.size() &&((AssocTypes.size() == AssocExprs.size() && "Must have the same number of association expressions" " and TypeSourceInfo!") ? static_cast<void> (0) : __assert_fail ("AssocTypes.size() == AssocExprs.size() && \"Must have the same number of association expressions\" \" and TypeSourceInfo!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4058, __PRETTY_FUNCTION__)) | ||||||||
| 4057 | "Must have the same number of association expressions"((AssocTypes.size() == AssocExprs.size() && "Must have the same number of association expressions" " and TypeSourceInfo!") ? static_cast<void> (0) : __assert_fail ("AssocTypes.size() == AssocExprs.size() && \"Must have the same number of association expressions\" \" and TypeSourceInfo!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4058, __PRETTY_FUNCTION__)) | ||||||||
| 4058 | " and TypeSourceInfo!")((AssocTypes.size() == AssocExprs.size() && "Must have the same number of association expressions" " and TypeSourceInfo!") ? static_cast<void> (0) : __assert_fail ("AssocTypes.size() == AssocExprs.size() && \"Must have the same number of association expressions\" \" and TypeSourceInfo!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4058, __PRETTY_FUNCTION__)); | ||||||||
| 4059 | assert(ResultIndex < NumAssocs && "ResultIndex is out-of-bounds!")((ResultIndex < NumAssocs && "ResultIndex is out-of-bounds!" ) ? static_cast<void> (0) : __assert_fail ("ResultIndex < NumAssocs && \"ResultIndex is out-of-bounds!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4059, __PRETTY_FUNCTION__)); | ||||||||
| 4060 | |||||||||
| 4061 | GenericSelectionExprBits.GenericLoc = GenericLoc; | ||||||||
| 4062 | getTrailingObjects<Stmt *>()[ControllingIndex] = ControllingExpr; | ||||||||
| 4063 | std::copy(AssocExprs.begin(), AssocExprs.end(), | ||||||||
| 4064 | getTrailingObjects<Stmt *>() + AssocExprStartIndex); | ||||||||
| 4065 | std::copy(AssocTypes.begin(), AssocTypes.end(), | ||||||||
| 4066 | getTrailingObjects<TypeSourceInfo *>()); | ||||||||
| 4067 | |||||||||
| 4068 | setDependence(computeDependence(this, ContainsUnexpandedParameterPack)); | ||||||||
| 4069 | } | ||||||||
| 4070 | |||||||||
| 4071 | GenericSelectionExpr::GenericSelectionExpr( | ||||||||
| 4072 | const ASTContext &Context, SourceLocation GenericLoc, Expr *ControllingExpr, | ||||||||
| 4073 | ArrayRef<TypeSourceInfo *> AssocTypes, ArrayRef<Expr *> AssocExprs, | ||||||||
| 4074 | SourceLocation DefaultLoc, SourceLocation RParenLoc, | ||||||||
| 4075 | bool ContainsUnexpandedParameterPack) | ||||||||
| 4076 | : Expr(GenericSelectionExprClass, Context.DependentTy, VK_RValue, | ||||||||
| 4077 | OK_Ordinary), | ||||||||
| 4078 | NumAssocs(AssocExprs.size()), ResultIndex(ResultDependentIndex), | ||||||||
| 4079 | DefaultLoc(DefaultLoc), RParenLoc(RParenLoc) { | ||||||||
| 4080 | assert(AssocTypes.size() == AssocExprs.size() &&((AssocTypes.size() == AssocExprs.size() && "Must have the same number of association expressions" " and TypeSourceInfo!") ? static_cast<void> (0) : __assert_fail ("AssocTypes.size() == AssocExprs.size() && \"Must have the same number of association expressions\" \" and TypeSourceInfo!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4082, __PRETTY_FUNCTION__)) | ||||||||
| 4081 | "Must have the same number of association expressions"((AssocTypes.size() == AssocExprs.size() && "Must have the same number of association expressions" " and TypeSourceInfo!") ? static_cast<void> (0) : __assert_fail ("AssocTypes.size() == AssocExprs.size() && \"Must have the same number of association expressions\" \" and TypeSourceInfo!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4082, __PRETTY_FUNCTION__)) | ||||||||
| 4082 | " and TypeSourceInfo!")((AssocTypes.size() == AssocExprs.size() && "Must have the same number of association expressions" " and TypeSourceInfo!") ? static_cast<void> (0) : __assert_fail ("AssocTypes.size() == AssocExprs.size() && \"Must have the same number of association expressions\" \" and TypeSourceInfo!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4082, __PRETTY_FUNCTION__)); | ||||||||
| 4083 | |||||||||
| 4084 | GenericSelectionExprBits.GenericLoc = GenericLoc; | ||||||||
| 4085 | getTrailingObjects<Stmt *>()[ControllingIndex] = ControllingExpr; | ||||||||
| 4086 | std::copy(AssocExprs.begin(), AssocExprs.end(), | ||||||||
| 4087 | getTrailingObjects<Stmt *>() + AssocExprStartIndex); | ||||||||
| 4088 | std::copy(AssocTypes.begin(), AssocTypes.end(), | ||||||||
| 4089 | getTrailingObjects<TypeSourceInfo *>()); | ||||||||
| 4090 | |||||||||
| 4091 | setDependence(computeDependence(this, ContainsUnexpandedParameterPack)); | ||||||||
| 4092 | } | ||||||||
| 4093 | |||||||||
| 4094 | GenericSelectionExpr::GenericSelectionExpr(EmptyShell Empty, unsigned NumAssocs) | ||||||||
| 4095 | : Expr(GenericSelectionExprClass, Empty), NumAssocs(NumAssocs) {} | ||||||||
| 4096 | |||||||||
| 4097 | GenericSelectionExpr *GenericSelectionExpr::Create( | ||||||||
| 4098 | const ASTContext &Context, SourceLocation GenericLoc, Expr *ControllingExpr, | ||||||||
| 4099 | ArrayRef<TypeSourceInfo *> AssocTypes, ArrayRef<Expr *> AssocExprs, | ||||||||
| 4100 | SourceLocation DefaultLoc, SourceLocation RParenLoc, | ||||||||
| 4101 | bool ContainsUnexpandedParameterPack, unsigned ResultIndex) { | ||||||||
| 4102 | unsigned NumAssocs = AssocExprs.size(); | ||||||||
| 4103 | void *Mem = Context.Allocate( | ||||||||
| 4104 | totalSizeToAlloc<Stmt *, TypeSourceInfo *>(1 + NumAssocs, NumAssocs), | ||||||||
| 4105 | alignof(GenericSelectionExpr)); | ||||||||
| 4106 | return new (Mem) GenericSelectionExpr( | ||||||||
| 4107 | Context, GenericLoc, ControllingExpr, AssocTypes, AssocExprs, DefaultLoc, | ||||||||
| 4108 | RParenLoc, ContainsUnexpandedParameterPack, ResultIndex); | ||||||||
| 4109 | } | ||||||||
| 4110 | |||||||||
| 4111 | GenericSelectionExpr *GenericSelectionExpr::Create( | ||||||||
| 4112 | const ASTContext &Context, SourceLocation GenericLoc, Expr *ControllingExpr, | ||||||||
| 4113 | ArrayRef<TypeSourceInfo *> AssocTypes, ArrayRef<Expr *> AssocExprs, | ||||||||
| 4114 | SourceLocation DefaultLoc, SourceLocation RParenLoc, | ||||||||
| 4115 | bool ContainsUnexpandedParameterPack) { | ||||||||
| 4116 | unsigned NumAssocs = AssocExprs.size(); | ||||||||
| 4117 | void *Mem = Context.Allocate( | ||||||||
| 4118 | totalSizeToAlloc<Stmt *, TypeSourceInfo *>(1 + NumAssocs, NumAssocs), | ||||||||
| 4119 | alignof(GenericSelectionExpr)); | ||||||||
| 4120 | return new (Mem) GenericSelectionExpr( | ||||||||
| 4121 | Context, GenericLoc, ControllingExpr, AssocTypes, AssocExprs, DefaultLoc, | ||||||||
| 4122 | RParenLoc, ContainsUnexpandedParameterPack); | ||||||||
| 4123 | } | ||||||||
| 4124 | |||||||||
| 4125 | GenericSelectionExpr * | ||||||||
| 4126 | GenericSelectionExpr::CreateEmpty(const ASTContext &Context, | ||||||||
| 4127 | unsigned NumAssocs) { | ||||||||
| 4128 | void *Mem = Context.Allocate( | ||||||||
| 4129 | totalSizeToAlloc<Stmt *, TypeSourceInfo *>(1 + NumAssocs, NumAssocs), | ||||||||
| 4130 | alignof(GenericSelectionExpr)); | ||||||||
| 4131 | return new (Mem) GenericSelectionExpr(EmptyShell(), NumAssocs); | ||||||||
| 4132 | } | ||||||||
| 4133 | |||||||||
| 4134 | //===----------------------------------------------------------------------===// | ||||||||
| 4135 | // DesignatedInitExpr | ||||||||
| 4136 | //===----------------------------------------------------------------------===// | ||||||||
| 4137 | |||||||||
| 4138 | IdentifierInfo *DesignatedInitExpr::Designator::getFieldName() const { | ||||||||
| 4139 | assert(Kind == FieldDesignator && "Only valid on a field designator")((Kind == FieldDesignator && "Only valid on a field designator" ) ? static_cast<void> (0) : __assert_fail ("Kind == FieldDesignator && \"Only valid on a field designator\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4139, __PRETTY_FUNCTION__)); | ||||||||
| 4140 | if (Field.NameOrField & 0x01) | ||||||||
| 4141 | return reinterpret_cast<IdentifierInfo *>(Field.NameOrField & ~0x01); | ||||||||
| 4142 | return getField()->getIdentifier(); | ||||||||
| 4143 | } | ||||||||
| 4144 | |||||||||
| 4145 | DesignatedInitExpr::DesignatedInitExpr(const ASTContext &C, QualType Ty, | ||||||||
| 4146 | llvm::ArrayRef<Designator> Designators, | ||||||||
| 4147 | SourceLocation EqualOrColonLoc, | ||||||||
| 4148 | bool GNUSyntax, | ||||||||
| 4149 | ArrayRef<Expr *> IndexExprs, Expr *Init) | ||||||||
| 4150 | : Expr(DesignatedInitExprClass, Ty, Init->getValueKind(), | ||||||||
| 4151 | Init->getObjectKind()), | ||||||||
| 4152 | EqualOrColonLoc(EqualOrColonLoc), GNUSyntax(GNUSyntax), | ||||||||
| 4153 | NumDesignators(Designators.size()), NumSubExprs(IndexExprs.size() + 1) { | ||||||||
| 4154 | this->Designators = new (C) Designator[NumDesignators]; | ||||||||
| 4155 | |||||||||
| 4156 | // Record the initializer itself. | ||||||||
| 4157 | child_iterator Child = child_begin(); | ||||||||
| 4158 | *Child++ = Init; | ||||||||
| 4159 | |||||||||
| 4160 | // Copy the designators and their subexpressions, computing | ||||||||
| 4161 | // value-dependence along the way. | ||||||||
| 4162 | unsigned IndexIdx = 0; | ||||||||
| 4163 | for (unsigned I = 0; I != NumDesignators; ++I) { | ||||||||
| 4164 | this->Designators[I] = Designators[I]; | ||||||||
| 4165 | if (this->Designators[I].isArrayDesignator()) { | ||||||||
| 4166 | // Copy the index expressions into permanent storage. | ||||||||
| 4167 | *Child++ = IndexExprs[IndexIdx++]; | ||||||||
| 4168 | } else if (this->Designators[I].isArrayRangeDesignator()) { | ||||||||
| 4169 | // Copy the start/end expressions into permanent storage. | ||||||||
| 4170 | *Child++ = IndexExprs[IndexIdx++]; | ||||||||
| 4171 | *Child++ = IndexExprs[IndexIdx++]; | ||||||||
| 4172 | } | ||||||||
| 4173 | } | ||||||||
| 4174 | |||||||||
| 4175 | assert(IndexIdx == IndexExprs.size() && "Wrong number of index expressions")((IndexIdx == IndexExprs.size() && "Wrong number of index expressions" ) ? static_cast<void> (0) : __assert_fail ("IndexIdx == IndexExprs.size() && \"Wrong number of index expressions\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4175, __PRETTY_FUNCTION__)); | ||||||||
| 4176 | setDependence(computeDependence(this)); | ||||||||
| 4177 | } | ||||||||
| 4178 | |||||||||
| 4179 | DesignatedInitExpr * | ||||||||
| 4180 | DesignatedInitExpr::Create(const ASTContext &C, | ||||||||
| 4181 | llvm::ArrayRef<Designator> Designators, | ||||||||
| 4182 | ArrayRef<Expr*> IndexExprs, | ||||||||
| 4183 | SourceLocation ColonOrEqualLoc, | ||||||||
| 4184 | bool UsesColonSyntax, Expr *Init) { | ||||||||
| 4185 | void *Mem = C.Allocate(totalSizeToAlloc<Stmt *>(IndexExprs.size() + 1), | ||||||||
| 4186 | alignof(DesignatedInitExpr)); | ||||||||
| 4187 | return new (Mem) DesignatedInitExpr(C, C.VoidTy, Designators, | ||||||||
| 4188 | ColonOrEqualLoc, UsesColonSyntax, | ||||||||
| 4189 | IndexExprs, Init); | ||||||||
| 4190 | } | ||||||||
| 4191 | |||||||||
| 4192 | DesignatedInitExpr *DesignatedInitExpr::CreateEmpty(const ASTContext &C, | ||||||||
| 4193 | unsigned NumIndexExprs) { | ||||||||
| 4194 | void *Mem = C.Allocate(totalSizeToAlloc<Stmt *>(NumIndexExprs + 1), | ||||||||
| 4195 | alignof(DesignatedInitExpr)); | ||||||||
| 4196 | return new (Mem) DesignatedInitExpr(NumIndexExprs + 1); | ||||||||
| 4197 | } | ||||||||
| 4198 | |||||||||
| 4199 | void DesignatedInitExpr::setDesignators(const ASTContext &C, | ||||||||
| 4200 | const Designator *Desigs, | ||||||||
| 4201 | unsigned NumDesigs) { | ||||||||
| 4202 | Designators = new (C) Designator[NumDesigs]; | ||||||||
| 4203 | NumDesignators = NumDesigs; | ||||||||
| 4204 | for (unsigned I = 0; I != NumDesigs; ++I) | ||||||||
| 4205 | Designators[I] = Desigs[I]; | ||||||||
| 4206 | } | ||||||||
| 4207 | |||||||||
| 4208 | SourceRange DesignatedInitExpr::getDesignatorsSourceRange() const { | ||||||||
| 4209 | DesignatedInitExpr *DIE = const_cast<DesignatedInitExpr*>(this); | ||||||||
| 4210 | if (size() == 1) | ||||||||
| 4211 | return DIE->getDesignator(0)->getSourceRange(); | ||||||||
| 4212 | return SourceRange(DIE->getDesignator(0)->getBeginLoc(), | ||||||||
| 4213 | DIE->getDesignator(size() - 1)->getEndLoc()); | ||||||||
| 4214 | } | ||||||||
| 4215 | |||||||||
| 4216 | SourceLocation DesignatedInitExpr::getBeginLoc() const { | ||||||||
| 4217 | SourceLocation StartLoc; | ||||||||
| 4218 | auto *DIE = const_cast<DesignatedInitExpr *>(this); | ||||||||
| 4219 | Designator &First = *DIE->getDesignator(0); | ||||||||
| 4220 | if (First.isFieldDesignator()) | ||||||||
| 4221 | StartLoc = GNUSyntax ? First.Field.FieldLoc : First.Field.DotLoc; | ||||||||
| 4222 | else | ||||||||
| 4223 | StartLoc = First.ArrayOrRange.LBracketLoc; | ||||||||
| 4224 | return StartLoc; | ||||||||
| 4225 | } | ||||||||
| 4226 | |||||||||
| 4227 | SourceLocation DesignatedInitExpr::getEndLoc() const { | ||||||||
| 4228 | return getInit()->getEndLoc(); | ||||||||
| 4229 | } | ||||||||
| 4230 | |||||||||
| 4231 | Expr *DesignatedInitExpr::getArrayIndex(const Designator& D) const { | ||||||||
| 4232 | assert(D.Kind == Designator::ArrayDesignator && "Requires array designator")((D.Kind == Designator::ArrayDesignator && "Requires array designator" ) ? static_cast<void> (0) : __assert_fail ("D.Kind == Designator::ArrayDesignator && \"Requires array designator\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4232, __PRETTY_FUNCTION__)); | ||||||||
| 4233 | return getSubExpr(D.ArrayOrRange.Index + 1); | ||||||||
| 4234 | } | ||||||||
| 4235 | |||||||||
| 4236 | Expr *DesignatedInitExpr::getArrayRangeStart(const Designator &D) const { | ||||||||
| 4237 | assert(D.Kind == Designator::ArrayRangeDesignator &&((D.Kind == Designator::ArrayRangeDesignator && "Requires array range designator" ) ? static_cast<void> (0) : __assert_fail ("D.Kind == Designator::ArrayRangeDesignator && \"Requires array range designator\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4238, __PRETTY_FUNCTION__)) | ||||||||
| 4238 | "Requires array range designator")((D.Kind == Designator::ArrayRangeDesignator && "Requires array range designator" ) ? static_cast<void> (0) : __assert_fail ("D.Kind == Designator::ArrayRangeDesignator && \"Requires array range designator\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4238, __PRETTY_FUNCTION__)); | ||||||||
| 4239 | return getSubExpr(D.ArrayOrRange.Index + 1); | ||||||||
| 4240 | } | ||||||||
| 4241 | |||||||||
| 4242 | Expr *DesignatedInitExpr::getArrayRangeEnd(const Designator &D) const { | ||||||||
| 4243 | assert(D.Kind == Designator::ArrayRangeDesignator &&((D.Kind == Designator::ArrayRangeDesignator && "Requires array range designator" ) ? static_cast<void> (0) : __assert_fail ("D.Kind == Designator::ArrayRangeDesignator && \"Requires array range designator\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4244, __PRETTY_FUNCTION__)) | ||||||||
| 4244 | "Requires array range designator")((D.Kind == Designator::ArrayRangeDesignator && "Requires array range designator" ) ? static_cast<void> (0) : __assert_fail ("D.Kind == Designator::ArrayRangeDesignator && \"Requires array range designator\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4244, __PRETTY_FUNCTION__)); | ||||||||
| 4245 | return getSubExpr(D.ArrayOrRange.Index + 2); | ||||||||
| 4246 | } | ||||||||
| 4247 | |||||||||
| 4248 | /// Replaces the designator at index @p Idx with the series | ||||||||
| 4249 | /// of designators in [First, Last). | ||||||||
| 4250 | void DesignatedInitExpr::ExpandDesignator(const ASTContext &C, unsigned Idx, | ||||||||
| 4251 | const Designator *First, | ||||||||
| 4252 | const Designator *Last) { | ||||||||
| 4253 | unsigned NumNewDesignators = Last - First; | ||||||||
| 4254 | if (NumNewDesignators == 0) { | ||||||||
| 4255 | std::copy_backward(Designators + Idx + 1, | ||||||||
| 4256 | Designators + NumDesignators, | ||||||||
| 4257 | Designators + Idx); | ||||||||
| 4258 | --NumNewDesignators; | ||||||||
| 4259 | return; | ||||||||
| 4260 | } | ||||||||
| 4261 | if (NumNewDesignators == 1) { | ||||||||
| 4262 | Designators[Idx] = *First; | ||||||||
| 4263 | return; | ||||||||
| 4264 | } | ||||||||
| 4265 | |||||||||
| 4266 | Designator *NewDesignators | ||||||||
| 4267 | = new (C) Designator[NumDesignators - 1 + NumNewDesignators]; | ||||||||
| 4268 | std::copy(Designators, Designators + Idx, NewDesignators); | ||||||||
| 4269 | std::copy(First, Last, NewDesignators + Idx); | ||||||||
| 4270 | std::copy(Designators + Idx + 1, Designators + NumDesignators, | ||||||||
| 4271 | NewDesignators + Idx + NumNewDesignators); | ||||||||
| 4272 | Designators = NewDesignators; | ||||||||
| 4273 | NumDesignators = NumDesignators - 1 + NumNewDesignators; | ||||||||
| 4274 | } | ||||||||
| 4275 | |||||||||
| 4276 | DesignatedInitUpdateExpr::DesignatedInitUpdateExpr(const ASTContext &C, | ||||||||
| 4277 | SourceLocation lBraceLoc, | ||||||||
| 4278 | Expr *baseExpr, | ||||||||
| 4279 | SourceLocation rBraceLoc) | ||||||||
| 4280 | : Expr(DesignatedInitUpdateExprClass, baseExpr->getType(), VK_RValue, | ||||||||
| 4281 | OK_Ordinary) { | ||||||||
| 4282 | BaseAndUpdaterExprs[0] = baseExpr; | ||||||||
| 4283 | |||||||||
| 4284 | InitListExpr *ILE = new (C) InitListExpr(C, lBraceLoc, None, rBraceLoc); | ||||||||
| 4285 | ILE->setType(baseExpr->getType()); | ||||||||
| 4286 | BaseAndUpdaterExprs[1] = ILE; | ||||||||
| 4287 | |||||||||
| 4288 | // FIXME: this is wrong, set it correctly. | ||||||||
| 4289 | setDependence(ExprDependence::None); | ||||||||
| 4290 | } | ||||||||
| 4291 | |||||||||
| 4292 | SourceLocation DesignatedInitUpdateExpr::getBeginLoc() const { | ||||||||
| 4293 | return getBase()->getBeginLoc(); | ||||||||
| 4294 | } | ||||||||
| 4295 | |||||||||
| 4296 | SourceLocation DesignatedInitUpdateExpr::getEndLoc() const { | ||||||||
| 4297 | return getBase()->getEndLoc(); | ||||||||
| 4298 | } | ||||||||
| 4299 | |||||||||
| 4300 | ParenListExpr::ParenListExpr(SourceLocation LParenLoc, ArrayRef<Expr *> Exprs, | ||||||||
| 4301 | SourceLocation RParenLoc) | ||||||||
| 4302 | : Expr(ParenListExprClass, QualType(), VK_RValue, OK_Ordinary), | ||||||||
| 4303 | LParenLoc(LParenLoc), RParenLoc(RParenLoc) { | ||||||||
| 4304 | ParenListExprBits.NumExprs = Exprs.size(); | ||||||||
| 4305 | |||||||||
| 4306 | for (unsigned I = 0, N = Exprs.size(); I != N; ++I) | ||||||||
| 4307 | getTrailingObjects<Stmt *>()[I] = Exprs[I]; | ||||||||
| 4308 | setDependence(computeDependence(this)); | ||||||||
| 4309 | } | ||||||||
| 4310 | |||||||||
| 4311 | ParenListExpr::ParenListExpr(EmptyShell Empty, unsigned NumExprs) | ||||||||
| 4312 | : Expr(ParenListExprClass, Empty) { | ||||||||
| 4313 | ParenListExprBits.NumExprs = NumExprs; | ||||||||
| 4314 | } | ||||||||
| 4315 | |||||||||
| 4316 | ParenListExpr *ParenListExpr::Create(const ASTContext &Ctx, | ||||||||
| 4317 | SourceLocation LParenLoc, | ||||||||
| 4318 | ArrayRef<Expr *> Exprs, | ||||||||
| 4319 | SourceLocation RParenLoc) { | ||||||||
| 4320 | void *Mem = Ctx.Allocate(totalSizeToAlloc<Stmt *>(Exprs.size()), | ||||||||
| 4321 | alignof(ParenListExpr)); | ||||||||
| 4322 | return new (Mem) ParenListExpr(LParenLoc, Exprs, RParenLoc); | ||||||||
| 4323 | } | ||||||||
| 4324 | |||||||||
| 4325 | ParenListExpr *ParenListExpr::CreateEmpty(const ASTContext &Ctx, | ||||||||
| 4326 | unsigned NumExprs) { | ||||||||
| 4327 | void *Mem = | ||||||||
| 4328 | Ctx.Allocate(totalSizeToAlloc<Stmt *>(NumExprs), alignof(ParenListExpr)); | ||||||||
| 4329 | return new (Mem) ParenListExpr(EmptyShell(), NumExprs); | ||||||||
| 4330 | } | ||||||||
| 4331 | |||||||||
| 4332 | BinaryOperator::BinaryOperator(const ASTContext &Ctx, Expr *lhs, Expr *rhs, | ||||||||
| 4333 | Opcode opc, QualType ResTy, ExprValueKind VK, | ||||||||
| 4334 | ExprObjectKind OK, SourceLocation opLoc, | ||||||||
| 4335 | FPOptionsOverride FPFeatures) | ||||||||
| 4336 | : Expr(BinaryOperatorClass, ResTy, VK, OK) { | ||||||||
| 4337 | BinaryOperatorBits.Opc = opc; | ||||||||
| 4338 | assert(!isCompoundAssignmentOp() &&((!isCompoundAssignmentOp() && "Use CompoundAssignOperator for compound assignments" ) ? static_cast<void> (0) : __assert_fail ("!isCompoundAssignmentOp() && \"Use CompoundAssignOperator for compound assignments\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4339, __PRETTY_FUNCTION__)) | ||||||||
| 4339 | "Use CompoundAssignOperator for compound assignments")((!isCompoundAssignmentOp() && "Use CompoundAssignOperator for compound assignments" ) ? static_cast<void> (0) : __assert_fail ("!isCompoundAssignmentOp() && \"Use CompoundAssignOperator for compound assignments\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4339, __PRETTY_FUNCTION__)); | ||||||||
| 4340 | BinaryOperatorBits.OpLoc = opLoc; | ||||||||
| 4341 | SubExprs[LHS] = lhs; | ||||||||
| 4342 | SubExprs[RHS] = rhs; | ||||||||
| 4343 | BinaryOperatorBits.HasFPFeatures = FPFeatures.requiresTrailingStorage(); | ||||||||
| 4344 | if (hasStoredFPFeatures()) | ||||||||
| 4345 | setStoredFPFeatures(FPFeatures); | ||||||||
| 4346 | setDependence(computeDependence(this)); | ||||||||
| 4347 | } | ||||||||
| 4348 | |||||||||
| 4349 | BinaryOperator::BinaryOperator(const ASTContext &Ctx, Expr *lhs, Expr *rhs, | ||||||||
| 4350 | Opcode opc, QualType ResTy, ExprValueKind VK, | ||||||||
| 4351 | ExprObjectKind OK, SourceLocation opLoc, | ||||||||
| 4352 | FPOptionsOverride FPFeatures, bool dead2) | ||||||||
| 4353 | : Expr(CompoundAssignOperatorClass, ResTy, VK, OK) { | ||||||||
| 4354 | BinaryOperatorBits.Opc = opc; | ||||||||
| 4355 | assert(isCompoundAssignmentOp() &&((isCompoundAssignmentOp() && "Use CompoundAssignOperator for compound assignments" ) ? static_cast<void> (0) : __assert_fail ("isCompoundAssignmentOp() && \"Use CompoundAssignOperator for compound assignments\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4356, __PRETTY_FUNCTION__)) | ||||||||
| 4356 | "Use CompoundAssignOperator for compound assignments")((isCompoundAssignmentOp() && "Use CompoundAssignOperator for compound assignments" ) ? static_cast<void> (0) : __assert_fail ("isCompoundAssignmentOp() && \"Use CompoundAssignOperator for compound assignments\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4356, __PRETTY_FUNCTION__)); | ||||||||
| 4357 | BinaryOperatorBits.OpLoc = opLoc; | ||||||||
| 4358 | SubExprs[LHS] = lhs; | ||||||||
| 4359 | SubExprs[RHS] = rhs; | ||||||||
| 4360 | BinaryOperatorBits.HasFPFeatures = FPFeatures.requiresTrailingStorage(); | ||||||||
| 4361 | if (hasStoredFPFeatures()) | ||||||||
| 4362 | setStoredFPFeatures(FPFeatures); | ||||||||
| 4363 | setDependence(computeDependence(this)); | ||||||||
| 4364 | } | ||||||||
| 4365 | |||||||||
| 4366 | BinaryOperator *BinaryOperator::CreateEmpty(const ASTContext &C, | ||||||||
| 4367 | bool HasFPFeatures) { | ||||||||
| 4368 | unsigned Extra = sizeOfTrailingObjects(HasFPFeatures); | ||||||||
| 4369 | void *Mem = | ||||||||
| 4370 | C.Allocate(sizeof(BinaryOperator) + Extra, alignof(BinaryOperator)); | ||||||||
| 4371 | return new (Mem) BinaryOperator(EmptyShell()); | ||||||||
| 4372 | } | ||||||||
| 4373 | |||||||||
| 4374 | BinaryOperator *BinaryOperator::Create(const ASTContext &C, Expr *lhs, | ||||||||
| 4375 | Expr *rhs, Opcode opc, QualType ResTy, | ||||||||
| 4376 | ExprValueKind VK, ExprObjectKind OK, | ||||||||
| 4377 | SourceLocation opLoc, | ||||||||
| 4378 | FPOptionsOverride FPFeatures) { | ||||||||
| 4379 | bool HasFPFeatures = FPFeatures.requiresTrailingStorage(); | ||||||||
| 4380 | unsigned Extra = sizeOfTrailingObjects(HasFPFeatures); | ||||||||
| 4381 | void *Mem = | ||||||||
| 4382 | C.Allocate(sizeof(BinaryOperator) + Extra, alignof(BinaryOperator)); | ||||||||
| 4383 | return new (Mem) | ||||||||
| 4384 | BinaryOperator(C, lhs, rhs, opc, ResTy, VK, OK, opLoc, FPFeatures); | ||||||||
| 4385 | } | ||||||||
| 4386 | |||||||||
| 4387 | CompoundAssignOperator * | ||||||||
| 4388 | CompoundAssignOperator::CreateEmpty(const ASTContext &C, bool HasFPFeatures) { | ||||||||
| 4389 | unsigned Extra = sizeOfTrailingObjects(HasFPFeatures); | ||||||||
| 4390 | void *Mem = C.Allocate(sizeof(CompoundAssignOperator) + Extra, | ||||||||
| 4391 | alignof(CompoundAssignOperator)); | ||||||||
| 4392 | return new (Mem) CompoundAssignOperator(C, EmptyShell(), HasFPFeatures); | ||||||||
| 4393 | } | ||||||||
| 4394 | |||||||||
| 4395 | CompoundAssignOperator * | ||||||||
| 4396 | CompoundAssignOperator::Create(const ASTContext &C, Expr *lhs, Expr *rhs, | ||||||||
| 4397 | Opcode opc, QualType ResTy, ExprValueKind VK, | ||||||||
| 4398 | ExprObjectKind OK, SourceLocation opLoc, | ||||||||
| 4399 | FPOptionsOverride FPFeatures, | ||||||||
| 4400 | QualType CompLHSType, QualType CompResultType) { | ||||||||
| 4401 | bool HasFPFeatures = FPFeatures.requiresTrailingStorage(); | ||||||||
| 4402 | unsigned Extra = sizeOfTrailingObjects(HasFPFeatures); | ||||||||
| 4403 | void *Mem = C.Allocate(sizeof(CompoundAssignOperator) + Extra, | ||||||||
| 4404 | alignof(CompoundAssignOperator)); | ||||||||
| 4405 | return new (Mem) | ||||||||
| 4406 | CompoundAssignOperator(C, lhs, rhs, opc, ResTy, VK, OK, opLoc, FPFeatures, | ||||||||
| 4407 | CompLHSType, CompResultType); | ||||||||
| 4408 | } | ||||||||
| 4409 | |||||||||
| 4410 | UnaryOperator *UnaryOperator::CreateEmpty(const ASTContext &C, | ||||||||
| 4411 | bool hasFPFeatures) { | ||||||||
| 4412 | void *Mem = C.Allocate(totalSizeToAlloc<FPOptionsOverride>(hasFPFeatures), | ||||||||
| 4413 | alignof(UnaryOperator)); | ||||||||
| 4414 | return new (Mem) UnaryOperator(hasFPFeatures, EmptyShell()); | ||||||||
| 4415 | } | ||||||||
| 4416 | |||||||||
| 4417 | UnaryOperator::UnaryOperator(const ASTContext &Ctx, Expr *input, Opcode opc, | ||||||||
| 4418 | QualType type, ExprValueKind VK, ExprObjectKind OK, | ||||||||
| 4419 | SourceLocation l, bool CanOverflow, | ||||||||
| 4420 | FPOptionsOverride FPFeatures) | ||||||||
| 4421 | : Expr(UnaryOperatorClass, type, VK, OK), Val(input) { | ||||||||
| 4422 | UnaryOperatorBits.Opc = opc; | ||||||||
| 4423 | UnaryOperatorBits.CanOverflow = CanOverflow; | ||||||||
| 4424 | UnaryOperatorBits.Loc = l; | ||||||||
| 4425 | UnaryOperatorBits.HasFPFeatures = FPFeatures.requiresTrailingStorage(); | ||||||||
| 4426 | if (hasStoredFPFeatures()) | ||||||||
| 4427 | setStoredFPFeatures(FPFeatures); | ||||||||
| 4428 | setDependence(computeDependence(this, Ctx)); | ||||||||
| 4429 | } | ||||||||
| 4430 | |||||||||
| 4431 | UnaryOperator *UnaryOperator::Create(const ASTContext &C, Expr *input, | ||||||||
| 4432 | Opcode opc, QualType type, | ||||||||
| 4433 | ExprValueKind VK, ExprObjectKind OK, | ||||||||
| 4434 | SourceLocation l, bool CanOverflow, | ||||||||
| 4435 | FPOptionsOverride FPFeatures) { | ||||||||
| 4436 | bool HasFPFeatures = FPFeatures.requiresTrailingStorage(); | ||||||||
| 4437 | unsigned Size = totalSizeToAlloc<FPOptionsOverride>(HasFPFeatures); | ||||||||
| 4438 | void *Mem = C.Allocate(Size, alignof(UnaryOperator)); | ||||||||
| 4439 | return new (Mem) | ||||||||
| 4440 | UnaryOperator(C, input, opc, type, VK, OK, l, CanOverflow, FPFeatures); | ||||||||
| 4441 | } | ||||||||
| 4442 | |||||||||
| 4443 | const OpaqueValueExpr *OpaqueValueExpr::findInCopyConstruct(const Expr *e) { | ||||||||
| 4444 | if (const ExprWithCleanups *ewc = dyn_cast<ExprWithCleanups>(e)) | ||||||||
| 4445 | e = ewc->getSubExpr(); | ||||||||
| 4446 | if (const MaterializeTemporaryExpr *m = dyn_cast<MaterializeTemporaryExpr>(e)) | ||||||||
| 4447 | e = m->getSubExpr(); | ||||||||
| 4448 | e = cast<CXXConstructExpr>(e)->getArg(0); | ||||||||
| 4449 | while (const ImplicitCastExpr *ice = dyn_cast<ImplicitCastExpr>(e)) | ||||||||
| 4450 | e = ice->getSubExpr(); | ||||||||
| 4451 | return cast<OpaqueValueExpr>(e); | ||||||||
| 4452 | } | ||||||||
| 4453 | |||||||||
| 4454 | PseudoObjectExpr *PseudoObjectExpr::Create(const ASTContext &Context, | ||||||||
| 4455 | EmptyShell sh, | ||||||||
| 4456 | unsigned numSemanticExprs) { | ||||||||
| 4457 | void *buffer = | ||||||||
| 4458 | Context.Allocate(totalSizeToAlloc<Expr *>(1 + numSemanticExprs), | ||||||||
| 4459 | alignof(PseudoObjectExpr)); | ||||||||
| 4460 | return new(buffer) PseudoObjectExpr(sh, numSemanticExprs); | ||||||||
| 4461 | } | ||||||||
| 4462 | |||||||||
| 4463 | PseudoObjectExpr::PseudoObjectExpr(EmptyShell shell, unsigned numSemanticExprs) | ||||||||
| 4464 | : Expr(PseudoObjectExprClass, shell) { | ||||||||
| 4465 | PseudoObjectExprBits.NumSubExprs = numSemanticExprs + 1; | ||||||||
| 4466 | } | ||||||||
| 4467 | |||||||||
| 4468 | PseudoObjectExpr *PseudoObjectExpr::Create(const ASTContext &C, Expr *syntax, | ||||||||
| 4469 | ArrayRef<Expr*> semantics, | ||||||||
| 4470 | unsigned resultIndex) { | ||||||||
| 4471 | assert(syntax && "no syntactic expression!")((syntax && "no syntactic expression!") ? static_cast <void> (0) : __assert_fail ("syntax && \"no syntactic expression!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4471, __PRETTY_FUNCTION__)); | ||||||||
| 4472 | assert(semantics.size() && "no semantic expressions!")((semantics.size() && "no semantic expressions!") ? static_cast <void> (0) : __assert_fail ("semantics.size() && \"no semantic expressions!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4472, __PRETTY_FUNCTION__)); | ||||||||
| 4473 | |||||||||
| 4474 | QualType type; | ||||||||
| 4475 | ExprValueKind VK; | ||||||||
| 4476 | if (resultIndex == NoResult) { | ||||||||
| 4477 | type = C.VoidTy; | ||||||||
| 4478 | VK = VK_RValue; | ||||||||
| 4479 | } else { | ||||||||
| 4480 | assert(resultIndex < semantics.size())((resultIndex < semantics.size()) ? static_cast<void> (0) : __assert_fail ("resultIndex < semantics.size()", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4480, __PRETTY_FUNCTION__)); | ||||||||
| 4481 | type = semantics[resultIndex]->getType(); | ||||||||
| 4482 | VK = semantics[resultIndex]->getValueKind(); | ||||||||
| 4483 | assert(semantics[resultIndex]->getObjectKind() == OK_Ordinary)((semantics[resultIndex]->getObjectKind() == OK_Ordinary) ? static_cast<void> (0) : __assert_fail ("semantics[resultIndex]->getObjectKind() == OK_Ordinary" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4483, __PRETTY_FUNCTION__)); | ||||||||
| 4484 | } | ||||||||
| 4485 | |||||||||
| 4486 | void *buffer = C.Allocate(totalSizeToAlloc<Expr *>(semantics.size() + 1), | ||||||||
| 4487 | alignof(PseudoObjectExpr)); | ||||||||
| 4488 | return new(buffer) PseudoObjectExpr(type, VK, syntax, semantics, | ||||||||
| 4489 | resultIndex); | ||||||||
| 4490 | } | ||||||||
| 4491 | |||||||||
| 4492 | PseudoObjectExpr::PseudoObjectExpr(QualType type, ExprValueKind VK, | ||||||||
| 4493 | Expr *syntax, ArrayRef<Expr *> semantics, | ||||||||
| 4494 | unsigned resultIndex) | ||||||||
| 4495 | : Expr(PseudoObjectExprClass, type, VK, OK_Ordinary) { | ||||||||
| 4496 | PseudoObjectExprBits.NumSubExprs = semantics.size() + 1; | ||||||||
| 4497 | PseudoObjectExprBits.ResultIndex = resultIndex + 1; | ||||||||
| 4498 | |||||||||
| 4499 | for (unsigned i = 0, e = semantics.size() + 1; i != e; ++i) { | ||||||||
| 4500 | Expr *E = (i == 0 ? syntax : semantics[i-1]); | ||||||||
| 4501 | getSubExprsBuffer()[i] = E; | ||||||||
| 4502 | |||||||||
| 4503 | if (isa<OpaqueValueExpr>(E)) | ||||||||
| 4504 | assert(cast<OpaqueValueExpr>(E)->getSourceExpr() != nullptr &&((cast<OpaqueValueExpr>(E)->getSourceExpr() != nullptr && "opaque-value semantic expressions for pseudo-object " "operations must have sources") ? static_cast<void> (0 ) : __assert_fail ("cast<OpaqueValueExpr>(E)->getSourceExpr() != nullptr && \"opaque-value semantic expressions for pseudo-object \" \"operations must have sources\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4506, __PRETTY_FUNCTION__)) | ||||||||
| 4505 | "opaque-value semantic expressions for pseudo-object "((cast<OpaqueValueExpr>(E)->getSourceExpr() != nullptr && "opaque-value semantic expressions for pseudo-object " "operations must have sources") ? static_cast<void> (0 ) : __assert_fail ("cast<OpaqueValueExpr>(E)->getSourceExpr() != nullptr && \"opaque-value semantic expressions for pseudo-object \" \"operations must have sources\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4506, __PRETTY_FUNCTION__)) | ||||||||
| 4506 | "operations must have sources")((cast<OpaqueValueExpr>(E)->getSourceExpr() != nullptr && "opaque-value semantic expressions for pseudo-object " "operations must have sources") ? static_cast<void> (0 ) : __assert_fail ("cast<OpaqueValueExpr>(E)->getSourceExpr() != nullptr && \"opaque-value semantic expressions for pseudo-object \" \"operations must have sources\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4506, __PRETTY_FUNCTION__)); | ||||||||
| 4507 | } | ||||||||
| 4508 | |||||||||
| 4509 | setDependence(computeDependence(this)); | ||||||||
| 4510 | } | ||||||||
| 4511 | |||||||||
| 4512 | //===----------------------------------------------------------------------===// | ||||||||
| 4513 | // Child Iterators for iterating over subexpressions/substatements | ||||||||
| 4514 | //===----------------------------------------------------------------------===// | ||||||||
| 4515 | |||||||||
| 4516 | // UnaryExprOrTypeTraitExpr | ||||||||
| 4517 | Stmt::child_range UnaryExprOrTypeTraitExpr::children() { | ||||||||
| 4518 | const_child_range CCR = | ||||||||
| 4519 | const_cast<const UnaryExprOrTypeTraitExpr *>(this)->children(); | ||||||||
| 4520 | return child_range(cast_away_const(CCR.begin()), cast_away_const(CCR.end())); | ||||||||
| 4521 | } | ||||||||
| 4522 | |||||||||
| 4523 | Stmt::const_child_range UnaryExprOrTypeTraitExpr::children() const { | ||||||||
| 4524 | // If this is of a type and the type is a VLA type (and not a typedef), the | ||||||||
| 4525 | // size expression of the VLA needs to be treated as an executable expression. | ||||||||
| 4526 | // Why isn't this weirdness documented better in StmtIterator? | ||||||||
| 4527 | if (isArgumentType()) { | ||||||||
| 4528 | if (const VariableArrayType *T = | ||||||||
| 4529 | dyn_cast<VariableArrayType>(getArgumentType().getTypePtr())) | ||||||||
| 4530 | return const_child_range(const_child_iterator(T), const_child_iterator()); | ||||||||
| 4531 | return const_child_range(const_child_iterator(), const_child_iterator()); | ||||||||
| 4532 | } | ||||||||
| 4533 | return const_child_range(&Argument.Ex, &Argument.Ex + 1); | ||||||||
| 4534 | } | ||||||||
| 4535 | |||||||||
| 4536 | AtomicExpr::AtomicExpr(SourceLocation BLoc, ArrayRef<Expr *> args, QualType t, | ||||||||
| 4537 | AtomicOp op, SourceLocation RP) | ||||||||
| 4538 | : Expr(AtomicExprClass, t, VK_RValue, OK_Ordinary), | ||||||||
| 4539 | NumSubExprs(args.size()), BuiltinLoc(BLoc), RParenLoc(RP), Op(op) { | ||||||||
| 4540 | assert(args.size() == getNumSubExprs(op) && "wrong number of subexpressions")((args.size() == getNumSubExprs(op) && "wrong number of subexpressions" ) ? static_cast<void> (0) : __assert_fail ("args.size() == getNumSubExprs(op) && \"wrong number of subexpressions\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4540, __PRETTY_FUNCTION__)); | ||||||||
| 4541 | for (unsigned i = 0; i != args.size(); i++) | ||||||||
| 4542 | SubExprs[i] = args[i]; | ||||||||
| 4543 | setDependence(computeDependence(this)); | ||||||||
| 4544 | } | ||||||||
| 4545 | |||||||||
| 4546 | unsigned AtomicExpr::getNumSubExprs(AtomicOp Op) { | ||||||||
| 4547 | switch (Op) { | ||||||||
| 4548 | case AO__c11_atomic_init: | ||||||||
| 4549 | case AO__opencl_atomic_init: | ||||||||
| 4550 | case AO__c11_atomic_load: | ||||||||
| 4551 | case AO__atomic_load_n: | ||||||||
| 4552 | return 2; | ||||||||
| 4553 | |||||||||
| 4554 | case AO__opencl_atomic_load: | ||||||||
| 4555 | case AO__c11_atomic_store: | ||||||||
| 4556 | case AO__c11_atomic_exchange: | ||||||||
| 4557 | case AO__atomic_load: | ||||||||
| 4558 | case AO__atomic_store: | ||||||||
| 4559 | case AO__atomic_store_n: | ||||||||
| 4560 | case AO__atomic_exchange_n: | ||||||||
| 4561 | case AO__c11_atomic_fetch_add: | ||||||||
| 4562 | case AO__c11_atomic_fetch_sub: | ||||||||
| 4563 | case AO__c11_atomic_fetch_and: | ||||||||
| 4564 | case AO__c11_atomic_fetch_or: | ||||||||
| 4565 | case AO__c11_atomic_fetch_xor: | ||||||||
| 4566 | case AO__c11_atomic_fetch_max: | ||||||||
| 4567 | case AO__c11_atomic_fetch_min: | ||||||||
| 4568 | case AO__atomic_fetch_add: | ||||||||
| 4569 | case AO__atomic_fetch_sub: | ||||||||
| 4570 | case AO__atomic_fetch_and: | ||||||||
| 4571 | case AO__atomic_fetch_or: | ||||||||
| 4572 | case AO__atomic_fetch_xor: | ||||||||
| 4573 | case AO__atomic_fetch_nand: | ||||||||
| 4574 | case AO__atomic_add_fetch: | ||||||||
| 4575 | case AO__atomic_sub_fetch: | ||||||||
| 4576 | case AO__atomic_and_fetch: | ||||||||
| 4577 | case AO__atomic_or_fetch: | ||||||||
| 4578 | case AO__atomic_xor_fetch: | ||||||||
| 4579 | case AO__atomic_nand_fetch: | ||||||||
| 4580 | case AO__atomic_min_fetch: | ||||||||
| 4581 | case AO__atomic_max_fetch: | ||||||||
| 4582 | case AO__atomic_fetch_min: | ||||||||
| 4583 | case AO__atomic_fetch_max: | ||||||||
| 4584 | return 3; | ||||||||
| 4585 | |||||||||
| 4586 | case AO__opencl_atomic_store: | ||||||||
| 4587 | case AO__opencl_atomic_exchange: | ||||||||
| 4588 | case AO__opencl_atomic_fetch_add: | ||||||||
| 4589 | case AO__opencl_atomic_fetch_sub: | ||||||||
| 4590 | case AO__opencl_atomic_fetch_and: | ||||||||
| 4591 | case AO__opencl_atomic_fetch_or: | ||||||||
| 4592 | case AO__opencl_atomic_fetch_xor: | ||||||||
| 4593 | case AO__opencl_atomic_fetch_min: | ||||||||
| 4594 | case AO__opencl_atomic_fetch_max: | ||||||||
| 4595 | case AO__atomic_exchange: | ||||||||
| 4596 | return 4; | ||||||||
| 4597 | |||||||||
| 4598 | case AO__c11_atomic_compare_exchange_strong: | ||||||||
| 4599 | case AO__c11_atomic_compare_exchange_weak: | ||||||||
| 4600 | return 5; | ||||||||
| 4601 | |||||||||
| 4602 | case AO__opencl_atomic_compare_exchange_strong: | ||||||||
| 4603 | case AO__opencl_atomic_compare_exchange_weak: | ||||||||
| 4604 | case AO__atomic_compare_exchange: | ||||||||
| 4605 | case AO__atomic_compare_exchange_n: | ||||||||
| 4606 | return 6; | ||||||||
| 4607 | } | ||||||||
| 4608 | llvm_unreachable("unknown atomic op")::llvm::llvm_unreachable_internal("unknown atomic op", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4608); | ||||||||
| 4609 | } | ||||||||
| 4610 | |||||||||
| 4611 | QualType AtomicExpr::getValueType() const { | ||||||||
| 4612 | auto T = getPtr()->getType()->castAs<PointerType>()->getPointeeType(); | ||||||||
| 4613 | if (auto AT = T->getAs<AtomicType>()) | ||||||||
| 4614 | return AT->getValueType(); | ||||||||
| 4615 | return T; | ||||||||
| 4616 | } | ||||||||
| 4617 | |||||||||
| 4618 | QualType OMPArraySectionExpr::getBaseOriginalType(const Expr *Base) { | ||||||||
| 4619 | unsigned ArraySectionCount = 0; | ||||||||
| 4620 | while (auto *OASE = dyn_cast<OMPArraySectionExpr>(Base->IgnoreParens())) { | ||||||||
| 4621 | Base = OASE->getBase(); | ||||||||
| 4622 | ++ArraySectionCount; | ||||||||
| 4623 | } | ||||||||
| 4624 | while (auto *ASE = | ||||||||
| 4625 | dyn_cast<ArraySubscriptExpr>(Base->IgnoreParenImpCasts())) { | ||||||||
| 4626 | Base = ASE->getBase(); | ||||||||
| 4627 | ++ArraySectionCount; | ||||||||
| 4628 | } | ||||||||
| 4629 | Base = Base->IgnoreParenImpCasts(); | ||||||||
| 4630 | auto OriginalTy = Base->getType(); | ||||||||
| 4631 | if (auto *DRE = dyn_cast<DeclRefExpr>(Base)) | ||||||||
| 4632 | if (auto *PVD = dyn_cast<ParmVarDecl>(DRE->getDecl())) | ||||||||
| 4633 | OriginalTy = PVD->getOriginalType().getNonReferenceType(); | ||||||||
| 4634 | |||||||||
| 4635 | for (unsigned Cnt = 0; Cnt < ArraySectionCount; ++Cnt) { | ||||||||
| 4636 | if (OriginalTy->isAnyPointerType()) | ||||||||
| 4637 | OriginalTy = OriginalTy->getPointeeType(); | ||||||||
| 4638 | else { | ||||||||
| 4639 | assert (OriginalTy->isArrayType())((OriginalTy->isArrayType()) ? static_cast<void> (0) : __assert_fail ("OriginalTy->isArrayType()", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4639, __PRETTY_FUNCTION__)); | ||||||||
| 4640 | OriginalTy = OriginalTy->castAsArrayTypeUnsafe()->getElementType(); | ||||||||
| 4641 | } | ||||||||
| 4642 | } | ||||||||
| 4643 | return OriginalTy; | ||||||||
| 4644 | } | ||||||||
| 4645 | |||||||||
| 4646 | RecoveryExpr::RecoveryExpr(ASTContext &Ctx, QualType T, SourceLocation BeginLoc, | ||||||||
| 4647 | SourceLocation EndLoc, ArrayRef<Expr *> SubExprs) | ||||||||
| 4648 | : Expr(RecoveryExprClass, T.getNonReferenceType(), | ||||||||
| 4649 | T->isDependentType() ? VK_LValue : getValueKindForType(T), | ||||||||
| 4650 | OK_Ordinary), | ||||||||
| 4651 | BeginLoc(BeginLoc), EndLoc(EndLoc), NumExprs(SubExprs.size()) { | ||||||||
| 4652 | assert(!T.isNull())((!T.isNull()) ? static_cast<void> (0) : __assert_fail ( "!T.isNull()", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4652, __PRETTY_FUNCTION__)); | ||||||||
| 4653 | assert(llvm::all_of(SubExprs, [](Expr* E) { return E != nullptr; }))((llvm::all_of(SubExprs, [](Expr* E) { return E != nullptr; } )) ? static_cast<void> (0) : __assert_fail ("llvm::all_of(SubExprs, [](Expr* E) { return E != nullptr; })" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4653, __PRETTY_FUNCTION__)); | ||||||||
| 4654 | |||||||||
| 4655 | llvm::copy(SubExprs, getTrailingObjects<Expr *>()); | ||||||||
| 4656 | setDependence(computeDependence(this)); | ||||||||
| 4657 | } | ||||||||
| 4658 | |||||||||
| 4659 | RecoveryExpr *RecoveryExpr::Create(ASTContext &Ctx, QualType T, | ||||||||
| 4660 | SourceLocation BeginLoc, | ||||||||
| 4661 | SourceLocation EndLoc, | ||||||||
| 4662 | ArrayRef<Expr *> SubExprs) { | ||||||||
| 4663 | void *Mem = Ctx.Allocate(totalSizeToAlloc<Expr *>(SubExprs.size()), | ||||||||
| 4664 | alignof(RecoveryExpr)); | ||||||||
| 4665 | return new (Mem) RecoveryExpr(Ctx, T, BeginLoc, EndLoc, SubExprs); | ||||||||
| 4666 | } | ||||||||
| 4667 | |||||||||
| 4668 | RecoveryExpr *RecoveryExpr::CreateEmpty(ASTContext &Ctx, unsigned NumSubExprs) { | ||||||||
| 4669 | void *Mem = Ctx.Allocate(totalSizeToAlloc<Expr *>(NumSubExprs), | ||||||||
| 4670 | alignof(RecoveryExpr)); | ||||||||
| 4671 | return new (Mem) RecoveryExpr(EmptyShell(), NumSubExprs); | ||||||||
| 4672 | } | ||||||||
| 4673 | |||||||||
| 4674 | void OMPArrayShapingExpr::setDimensions(ArrayRef<Expr *> Dims) { | ||||||||
| 4675 | assert(((NumDims == Dims.size() && "Preallocated number of dimensions is different from the provided one." ) ? static_cast<void> (0) : __assert_fail ("NumDims == Dims.size() && \"Preallocated number of dimensions is different from the provided one.\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4677, __PRETTY_FUNCTION__)) | ||||||||
| 4676 | NumDims == Dims.size() &&((NumDims == Dims.size() && "Preallocated number of dimensions is different from the provided one." ) ? static_cast<void> (0) : __assert_fail ("NumDims == Dims.size() && \"Preallocated number of dimensions is different from the provided one.\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4677, __PRETTY_FUNCTION__)) | ||||||||
| 4677 | "Preallocated number of dimensions is different from the provided one.")((NumDims == Dims.size() && "Preallocated number of dimensions is different from the provided one." ) ? static_cast<void> (0) : __assert_fail ("NumDims == Dims.size() && \"Preallocated number of dimensions is different from the provided one.\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4677, __PRETTY_FUNCTION__)); | ||||||||
| 4678 | llvm::copy(Dims, getTrailingObjects<Expr *>()); | ||||||||
| 4679 | } | ||||||||
| 4680 | |||||||||
| 4681 | void OMPArrayShapingExpr::setBracketsRanges(ArrayRef<SourceRange> BR) { | ||||||||
| 4682 | assert(((NumDims == BR.size() && "Preallocated number of dimensions is different from the provided one." ) ? static_cast<void> (0) : __assert_fail ("NumDims == BR.size() && \"Preallocated number of dimensions is different from the provided one.\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4684, __PRETTY_FUNCTION__)) | ||||||||
| 4683 | NumDims == BR.size() &&((NumDims == BR.size() && "Preallocated number of dimensions is different from the provided one." ) ? static_cast<void> (0) : __assert_fail ("NumDims == BR.size() && \"Preallocated number of dimensions is different from the provided one.\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4684, __PRETTY_FUNCTION__)) | ||||||||
| 4684 | "Preallocated number of dimensions is different from the provided one.")((NumDims == BR.size() && "Preallocated number of dimensions is different from the provided one." ) ? static_cast<void> (0) : __assert_fail ("NumDims == BR.size() && \"Preallocated number of dimensions is different from the provided one.\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4684, __PRETTY_FUNCTION__)); | ||||||||
| 4685 | llvm::copy(BR, getTrailingObjects<SourceRange>()); | ||||||||
| 4686 | } | ||||||||
| 4687 | |||||||||
| 4688 | OMPArrayShapingExpr::OMPArrayShapingExpr(QualType ExprTy, Expr *Op, | ||||||||
| 4689 | SourceLocation L, SourceLocation R, | ||||||||
| 4690 | ArrayRef<Expr *> Dims) | ||||||||
| 4691 | : Expr(OMPArrayShapingExprClass, ExprTy, VK_LValue, OK_Ordinary), LPLoc(L), | ||||||||
| 4692 | RPLoc(R), NumDims(Dims.size()) { | ||||||||
| 4693 | setBase(Op); | ||||||||
| 4694 | setDimensions(Dims); | ||||||||
| 4695 | setDependence(computeDependence(this)); | ||||||||
| 4696 | } | ||||||||
| 4697 | |||||||||
| 4698 | OMPArrayShapingExpr * | ||||||||
| 4699 | OMPArrayShapingExpr::Create(const ASTContext &Context, QualType T, Expr *Op, | ||||||||
| 4700 | SourceLocation L, SourceLocation R, | ||||||||
| 4701 | ArrayRef<Expr *> Dims, | ||||||||
| 4702 | ArrayRef<SourceRange> BracketRanges) { | ||||||||
| 4703 | assert(Dims.size() == BracketRanges.size() &&((Dims.size() == BracketRanges.size() && "Different number of dimensions and brackets ranges." ) ? static_cast<void> (0) : __assert_fail ("Dims.size() == BracketRanges.size() && \"Different number of dimensions and brackets ranges.\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4704, __PRETTY_FUNCTION__)) | ||||||||
| 4704 | "Different number of dimensions and brackets ranges.")((Dims.size() == BracketRanges.size() && "Different number of dimensions and brackets ranges." ) ? static_cast<void> (0) : __assert_fail ("Dims.size() == BracketRanges.size() && \"Different number of dimensions and brackets ranges.\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4704, __PRETTY_FUNCTION__)); | ||||||||
| 4705 | void *Mem = Context.Allocate( | ||||||||
| 4706 | totalSizeToAlloc<Expr *, SourceRange>(Dims.size() + 1, Dims.size()), | ||||||||
| 4707 | alignof(OMPArrayShapingExpr)); | ||||||||
| 4708 | auto *E = new (Mem) OMPArrayShapingExpr(T, Op, L, R, Dims); | ||||||||
| 4709 | E->setBracketsRanges(BracketRanges); | ||||||||
| 4710 | return E; | ||||||||
| 4711 | } | ||||||||
| 4712 | |||||||||
| 4713 | OMPArrayShapingExpr *OMPArrayShapingExpr::CreateEmpty(const ASTContext &Context, | ||||||||
| 4714 | unsigned NumDims) { | ||||||||
| 4715 | void *Mem = Context.Allocate( | ||||||||
| 4716 | totalSizeToAlloc<Expr *, SourceRange>(NumDims + 1, NumDims), | ||||||||
| 4717 | alignof(OMPArrayShapingExpr)); | ||||||||
| 4718 | return new (Mem) OMPArrayShapingExpr(EmptyShell(), NumDims); | ||||||||
| 4719 | } | ||||||||
| 4720 | |||||||||
| 4721 | void OMPIteratorExpr::setIteratorDeclaration(unsigned I, Decl *D) { | ||||||||
| 4722 | assert(I < NumIterators &&((I < NumIterators && "Idx is greater or equal the number of iterators definitions." ) ? static_cast<void> (0) : __assert_fail ("I < NumIterators && \"Idx is greater or equal the number of iterators definitions.\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4723, __PRETTY_FUNCTION__)) | ||||||||
| 4723 | "Idx is greater or equal the number of iterators definitions.")((I < NumIterators && "Idx is greater or equal the number of iterators definitions." ) ? static_cast<void> (0) : __assert_fail ("I < NumIterators && \"Idx is greater or equal the number of iterators definitions.\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4723, __PRETTY_FUNCTION__)); | ||||||||
| 4724 | getTrailingObjects<Decl *>()[I] = D; | ||||||||
| 4725 | } | ||||||||
| 4726 | |||||||||
| 4727 | void OMPIteratorExpr::setAssignmentLoc(unsigned I, SourceLocation Loc) { | ||||||||
| 4728 | assert(I < NumIterators &&((I < NumIterators && "Idx is greater or equal the number of iterators definitions." ) ? static_cast<void> (0) : __assert_fail ("I < NumIterators && \"Idx is greater or equal the number of iterators definitions.\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4729, __PRETTY_FUNCTION__)) | ||||||||
| 4729 | "Idx is greater or equal the number of iterators definitions.")((I < NumIterators && "Idx is greater or equal the number of iterators definitions." ) ? static_cast<void> (0) : __assert_fail ("I < NumIterators && \"Idx is greater or equal the number of iterators definitions.\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4729, __PRETTY_FUNCTION__)); | ||||||||
| 4730 | getTrailingObjects< | ||||||||
| 4731 | SourceLocation>()[I * static_cast<int>(RangeLocOffset::Total) + | ||||||||
| 4732 | static_cast<int>(RangeLocOffset::AssignLoc)] = Loc; | ||||||||
| 4733 | } | ||||||||
| 4734 | |||||||||
| 4735 | void OMPIteratorExpr::setIteratorRange(unsigned I, Expr *Begin, | ||||||||
| 4736 | SourceLocation ColonLoc, Expr *End, | ||||||||
| 4737 | SourceLocation SecondColonLoc, | ||||||||
| 4738 | Expr *Step) { | ||||||||
| 4739 | assert(I < NumIterators &&((I < NumIterators && "Idx is greater or equal the number of iterators definitions." ) ? static_cast<void> (0) : __assert_fail ("I < NumIterators && \"Idx is greater or equal the number of iterators definitions.\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4740, __PRETTY_FUNCTION__)) | ||||||||
| 4740 | "Idx is greater or equal the number of iterators definitions.")((I < NumIterators && "Idx is greater or equal the number of iterators definitions." ) ? static_cast<void> (0) : __assert_fail ("I < NumIterators && \"Idx is greater or equal the number of iterators definitions.\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4740, __PRETTY_FUNCTION__)); | ||||||||
| 4741 | getTrailingObjects<Expr *>()[I * static_cast<int>(RangeExprOffset::Total) + | ||||||||
| 4742 | static_cast<int>(RangeExprOffset::Begin)] = | ||||||||
| 4743 | Begin; | ||||||||
| 4744 | getTrailingObjects<Expr *>()[I * static_cast<int>(RangeExprOffset::Total) + | ||||||||
| 4745 | static_cast<int>(RangeExprOffset::End)] = End; | ||||||||
| 4746 | getTrailingObjects<Expr *>()[I * static_cast<int>(RangeExprOffset::Total) + | ||||||||
| 4747 | static_cast<int>(RangeExprOffset::Step)] = Step; | ||||||||
| 4748 | getTrailingObjects< | ||||||||
| 4749 | SourceLocation>()[I * static_cast<int>(RangeLocOffset::Total) + | ||||||||
| 4750 | static_cast<int>(RangeLocOffset::FirstColonLoc)] = | ||||||||
| 4751 | ColonLoc; | ||||||||
| 4752 | getTrailingObjects< | ||||||||
| 4753 | SourceLocation>()[I * static_cast<int>(RangeLocOffset::Total) + | ||||||||
| 4754 | static_cast<int>(RangeLocOffset::SecondColonLoc)] = | ||||||||
| 4755 | SecondColonLoc; | ||||||||
| 4756 | } | ||||||||
| 4757 | |||||||||
| 4758 | Decl *OMPIteratorExpr::getIteratorDecl(unsigned I) { | ||||||||
| 4759 | return getTrailingObjects<Decl *>()[I]; | ||||||||
| 4760 | } | ||||||||
| 4761 | |||||||||
| 4762 | OMPIteratorExpr::IteratorRange OMPIteratorExpr::getIteratorRange(unsigned I) { | ||||||||
| 4763 | IteratorRange Res; | ||||||||
| 4764 | Res.Begin = | ||||||||
| 4765 | getTrailingObjects<Expr *>()[I * static_cast<int>( | ||||||||
| 4766 | RangeExprOffset::Total) + | ||||||||
| 4767 | static_cast<int>(RangeExprOffset::Begin)]; | ||||||||
| 4768 | Res.End = | ||||||||
| 4769 | getTrailingObjects<Expr *>()[I * static_cast<int>( | ||||||||
| 4770 | RangeExprOffset::Total) + | ||||||||
| 4771 | static_cast<int>(RangeExprOffset::End)]; | ||||||||
| 4772 | Res.Step = | ||||||||
| 4773 | getTrailingObjects<Expr *>()[I * static_cast<int>( | ||||||||
| 4774 | RangeExprOffset::Total) + | ||||||||
| 4775 | static_cast<int>(RangeExprOffset::Step)]; | ||||||||
| 4776 | return Res; | ||||||||
| 4777 | } | ||||||||
| 4778 | |||||||||
| 4779 | SourceLocation OMPIteratorExpr::getAssignLoc(unsigned I) const { | ||||||||
| 4780 | return getTrailingObjects< | ||||||||
| 4781 | SourceLocation>()[I * static_cast<int>(RangeLocOffset::Total) + | ||||||||
| 4782 | static_cast<int>(RangeLocOffset::AssignLoc)]; | ||||||||
| 4783 | } | ||||||||
| 4784 | |||||||||
| 4785 | SourceLocation OMPIteratorExpr::getColonLoc(unsigned I) const { | ||||||||
| 4786 | return getTrailingObjects< | ||||||||
| 4787 | SourceLocation>()[I * static_cast<int>(RangeLocOffset::Total) + | ||||||||
| 4788 | static_cast<int>(RangeLocOffset::FirstColonLoc)]; | ||||||||
| 4789 | } | ||||||||
| 4790 | |||||||||
| 4791 | SourceLocation OMPIteratorExpr::getSecondColonLoc(unsigned I) const { | ||||||||
| 4792 | return getTrailingObjects< | ||||||||
| 4793 | SourceLocation>()[I * static_cast<int>(RangeLocOffset::Total) + | ||||||||
| 4794 | static_cast<int>(RangeLocOffset::SecondColonLoc)]; | ||||||||
| 4795 | } | ||||||||
| 4796 | |||||||||
| 4797 | void OMPIteratorExpr::setHelper(unsigned I, const OMPIteratorHelperData &D) { | ||||||||
| 4798 | getTrailingObjects<OMPIteratorHelperData>()[I] = D; | ||||||||
| 4799 | } | ||||||||
| 4800 | |||||||||
| 4801 | OMPIteratorHelperData &OMPIteratorExpr::getHelper(unsigned I) { | ||||||||
| 4802 | return getTrailingObjects<OMPIteratorHelperData>()[I]; | ||||||||
| 4803 | } | ||||||||
| 4804 | |||||||||
| 4805 | const OMPIteratorHelperData &OMPIteratorExpr::getHelper(unsigned I) const { | ||||||||
| 4806 | return getTrailingObjects<OMPIteratorHelperData>()[I]; | ||||||||
| 4807 | } | ||||||||
| 4808 | |||||||||
| 4809 | OMPIteratorExpr::OMPIteratorExpr( | ||||||||
| 4810 | QualType ExprTy, SourceLocation IteratorKwLoc, SourceLocation L, | ||||||||
| 4811 | SourceLocation R, ArrayRef<OMPIteratorExpr::IteratorDefinition> Data, | ||||||||
| 4812 | ArrayRef<OMPIteratorHelperData> Helpers) | ||||||||
| 4813 | : Expr(OMPIteratorExprClass, ExprTy, VK_LValue, OK_Ordinary), | ||||||||
| 4814 | IteratorKwLoc(IteratorKwLoc), LPLoc(L), RPLoc(R), | ||||||||
| 4815 | NumIterators(Data.size()) { | ||||||||
| 4816 | for (unsigned I = 0, E = Data.size(); I < E; ++I) { | ||||||||
| 4817 | const IteratorDefinition &D = Data[I]; | ||||||||
| 4818 | setIteratorDeclaration(I, D.IteratorDecl); | ||||||||
| 4819 | setAssignmentLoc(I, D.AssignmentLoc); | ||||||||
| 4820 | setIteratorRange(I, D.Range.Begin, D.ColonLoc, D.Range.End, | ||||||||
| 4821 | D.SecondColonLoc, D.Range.Step); | ||||||||
| 4822 | setHelper(I, Helpers[I]); | ||||||||
| 4823 | } | ||||||||
| 4824 | setDependence(computeDependence(this)); | ||||||||
| 4825 | } | ||||||||
| 4826 | |||||||||
| 4827 | OMPIteratorExpr * | ||||||||
| 4828 | OMPIteratorExpr::Create(const ASTContext &Context, QualType T, | ||||||||
| 4829 | SourceLocation IteratorKwLoc, SourceLocation L, | ||||||||
| 4830 | SourceLocation R, | ||||||||
| 4831 | ArrayRef<OMPIteratorExpr::IteratorDefinition> Data, | ||||||||
| 4832 | ArrayRef<OMPIteratorHelperData> Helpers) { | ||||||||
| 4833 | assert(Data.size() == Helpers.size() &&((Data.size() == Helpers.size() && "Data and helpers must have the same size." ) ? static_cast<void> (0) : __assert_fail ("Data.size() == Helpers.size() && \"Data and helpers must have the same size.\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4834, __PRETTY_FUNCTION__)) | ||||||||
| 4834 | "Data and helpers must have the same size.")((Data.size() == Helpers.size() && "Data and helpers must have the same size." ) ? static_cast<void> (0) : __assert_fail ("Data.size() == Helpers.size() && \"Data and helpers must have the same size.\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/Expr.cpp" , 4834, __PRETTY_FUNCTION__)); | ||||||||
| 4835 | void *Mem = Context.Allocate( | ||||||||
| 4836 | totalSizeToAlloc<Decl *, Expr *, SourceLocation, OMPIteratorHelperData>( | ||||||||
| 4837 | Data.size(), Data.size() * static_cast<int>(RangeExprOffset::Total), | ||||||||
| 4838 | Data.size() * static_cast<int>(RangeLocOffset::Total), | ||||||||
| 4839 | Helpers.size()), | ||||||||
| 4840 | alignof(OMPIteratorExpr)); | ||||||||
| 4841 | return new (Mem) OMPIteratorExpr(T, IteratorKwLoc, L, R, Data, Helpers); | ||||||||
| 4842 | } | ||||||||
| 4843 | |||||||||
| 4844 | OMPIteratorExpr *OMPIteratorExpr::CreateEmpty(const ASTContext &Context, | ||||||||
| 4845 | unsigned NumIterators) { | ||||||||
| 4846 | void *Mem = Context.Allocate( | ||||||||
| 4847 | totalSizeToAlloc<Decl *, Expr *, SourceLocation, OMPIteratorHelperData>( | ||||||||
| 4848 | NumIterators, NumIterators * static_cast<int>(RangeExprOffset::Total), | ||||||||
| 4849 | NumIterators * static_cast<int>(RangeLocOffset::Total), NumIterators), | ||||||||
| 4850 | alignof(OMPIteratorExpr)); | ||||||||
| 4851 | return new (Mem) OMPIteratorExpr(EmptyShell(), NumIterators); | ||||||||
| 4852 | } |
| 1 | // Iterators -*- C++ -*- |
| 2 | |
| 3 | // Copyright (C) 2001-2016 Free Software Foundation, Inc. |
| 4 | // |
| 5 | // This file is part of the GNU ISO C++ Library. This library is free |
| 6 | // software; you can redistribute it and/or modify it under the |
| 7 | // terms of the GNU General Public License as published by the |
| 8 | // Free Software Foundation; either version 3, or (at your option) |
| 9 | // any later version. |
| 10 | |
| 11 | // This library is distributed in the hope that it will be useful, |
| 12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | // GNU General Public License for more details. |
| 15 | |
| 16 | // Under Section 7 of GPL version 3, you are granted additional |
| 17 | // permissions described in the GCC Runtime Library Exception, version |
| 18 | // 3.1, as published by the Free Software Foundation. |
| 19 | |
| 20 | // You should have received a copy of the GNU General Public License and |
| 21 | // a copy of the GCC Runtime Library Exception along with this program; |
| 22 | // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| 23 | // <http://www.gnu.org/licenses/>. |
| 24 | |
| 25 | /* |
| 26 | * |
| 27 | * Copyright (c) 1994 |
| 28 | * Hewlett-Packard Company |
| 29 | * |
| 30 | * Permission to use, copy, modify, distribute and sell this software |
| 31 | * and its documentation for any purpose is hereby granted without fee, |
| 32 | * provided that the above copyright notice appear in all copies and |
| 33 | * that both that copyright notice and this permission notice appear |
| 34 | * in supporting documentation. Hewlett-Packard Company makes no |
| 35 | * representations about the suitability of this software for any |
| 36 | * purpose. It is provided "as is" without express or implied warranty. |
| 37 | * |
| 38 | * |
| 39 | * Copyright (c) 1996-1998 |
| 40 | * Silicon Graphics Computer Systems, Inc. |
| 41 | * |
| 42 | * Permission to use, copy, modify, distribute and sell this software |
| 43 | * and its documentation for any purpose is hereby granted without fee, |
| 44 | * provided that the above copyright notice appear in all copies and |
| 45 | * that both that copyright notice and this permission notice appear |
| 46 | * in supporting documentation. Silicon Graphics makes no |
| 47 | * representations about the suitability of this software for any |
| 48 | * purpose. It is provided "as is" without express or implied warranty. |
| 49 | */ |
| 50 | |
| 51 | /** @file bits/stl_iterator.h |
| 52 | * This is an internal header file, included by other library headers. |
| 53 | * Do not attempt to use it directly. @headername{iterator} |
| 54 | * |
| 55 | * This file implements reverse_iterator, back_insert_iterator, |
| 56 | * front_insert_iterator, insert_iterator, __normal_iterator, and their |
| 57 | * supporting functions and overloaded operators. |
| 58 | */ |
| 59 | |
| 60 | #ifndef _STL_ITERATOR_H1 |
| 61 | #define _STL_ITERATOR_H1 1 |
| 62 | |
| 63 | #include <bits/cpp_type_traits.h> |
| 64 | #include <ext/type_traits.h> |
| 65 | #include <bits/move.h> |
| 66 | #include <bits/ptr_traits.h> |
| 67 | |
| 68 | namespace std _GLIBCXX_VISIBILITY(default)__attribute__ ((__visibility__ ("default"))) |
| 69 | { |
| 70 | _GLIBCXX_BEGIN_NAMESPACE_VERSION |
| 71 | |
| 72 | /** |
| 73 | * @addtogroup iterators |
| 74 | * @{ |
| 75 | */ |
| 76 | |
| 77 | // 24.4.1 Reverse iterators |
| 78 | /** |
| 79 | * Bidirectional and random access iterators have corresponding reverse |
| 80 | * %iterator adaptors that iterate through the data structure in the |
| 81 | * opposite direction. They have the same signatures as the corresponding |
| 82 | * iterators. The fundamental relation between a reverse %iterator and its |
| 83 | * corresponding %iterator @c i is established by the identity: |
| 84 | * @code |
| 85 | * &*(reverse_iterator(i)) == &*(i - 1) |
| 86 | * @endcode |
| 87 | * |
| 88 | * <em>This mapping is dictated by the fact that while there is always a |
| 89 | * pointer past the end of an array, there might not be a valid pointer |
| 90 | * before the beginning of an array.</em> [24.4.1]/1,2 |
| 91 | * |
| 92 | * Reverse iterators can be tricky and surprising at first. Their |
| 93 | * semantics make sense, however, and the trickiness is a side effect of |
| 94 | * the requirement that the iterators must be safe. |
| 95 | */ |
| 96 | template<typename _Iterator> |
| 97 | class reverse_iterator |
| 98 | : public iterator<typename iterator_traits<_Iterator>::iterator_category, |
| 99 | typename iterator_traits<_Iterator>::value_type, |
| 100 | typename iterator_traits<_Iterator>::difference_type, |
| 101 | typename iterator_traits<_Iterator>::pointer, |
| 102 | typename iterator_traits<_Iterator>::reference> |
| 103 | { |
| 104 | protected: |
| 105 | _Iterator current; |
| 106 | |
| 107 | typedef iterator_traits<_Iterator> __traits_type; |
| 108 | |
| 109 | public: |
| 110 | typedef _Iterator iterator_type; |
| 111 | typedef typename __traits_type::difference_type difference_type; |
| 112 | typedef typename __traits_type::pointer pointer; |
| 113 | typedef typename __traits_type::reference reference; |
| 114 | |
| 115 | /** |
| 116 | * The default constructor value-initializes member @p current. |
| 117 | * If it is a pointer, that means it is zero-initialized. |
| 118 | */ |
| 119 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
| 120 | // 235 No specification of default ctor for reverse_iterator |
| 121 | reverse_iterator() : current() { } |
| 122 | |
| 123 | /** |
| 124 | * This %iterator will move in the opposite direction that @p x does. |
| 125 | */ |
| 126 | explicit |
| 127 | reverse_iterator(iterator_type __x) : current(__x) { } |
| 128 | |
| 129 | /** |
| 130 | * The copy constructor is normal. |
| 131 | */ |
| 132 | reverse_iterator(const reverse_iterator& __x) |
| 133 | : current(__x.current) { } |
| 134 | |
| 135 | /** |
| 136 | * A %reverse_iterator across other types can be copied if the |
| 137 | * underlying %iterator can be converted to the type of @c current. |
| 138 | */ |
| 139 | template<typename _Iter> |
| 140 | reverse_iterator(const reverse_iterator<_Iter>& __x) |
| 141 | : current(__x.base()) { } |
| 142 | |
| 143 | /** |
| 144 | * @return @c current, the %iterator used for underlying work. |
| 145 | */ |
| 146 | iterator_type |
| 147 | base() const |
| 148 | { return current; } |
| 149 | |
| 150 | /** |
| 151 | * @return A reference to the value at @c --current |
| 152 | * |
| 153 | * This requires that @c --current is dereferenceable. |
| 154 | * |
| 155 | * @warning This implementation requires that for an iterator of the |
| 156 | * underlying iterator type, @c x, a reference obtained by |
| 157 | * @c *x remains valid after @c x has been modified or |
| 158 | * destroyed. This is a bug: http://gcc.gnu.org/PR51823 |
| 159 | */ |
| 160 | reference |
| 161 | operator*() const |
| 162 | { |
| 163 | _Iterator __tmp = current; |
| 164 | return *--__tmp; |
| 165 | } |
| 166 | |
| 167 | /** |
| 168 | * @return A pointer to the value at @c --current |
| 169 | * |
| 170 | * This requires that @c --current is dereferenceable. |
| 171 | */ |
| 172 | pointer |
| 173 | operator->() const |
| 174 | { return &(operator*()); } |
| 175 | |
| 176 | /** |
| 177 | * @return @c *this |
| 178 | * |
| 179 | * Decrements the underlying iterator. |
| 180 | */ |
| 181 | reverse_iterator& |
| 182 | operator++() |
| 183 | { |
| 184 | --current; |
| 185 | return *this; |
| 186 | } |
| 187 | |
| 188 | /** |
| 189 | * @return The original value of @c *this |
| 190 | * |
| 191 | * Decrements the underlying iterator. |
| 192 | */ |
| 193 | reverse_iterator |
| 194 | operator++(int) |
| 195 | { |
| 196 | reverse_iterator __tmp = *this; |
| 197 | --current; |
| 198 | return __tmp; |
| 199 | } |
| 200 | |
| 201 | /** |
| 202 | * @return @c *this |
| 203 | * |
| 204 | * Increments the underlying iterator. |
| 205 | */ |
| 206 | reverse_iterator& |
| 207 | operator--() |
| 208 | { |
| 209 | ++current; |
| 210 | return *this; |
| 211 | } |
| 212 | |
| 213 | /** |
| 214 | * @return A reverse_iterator with the previous value of @c *this |
| 215 | * |
| 216 | * Increments the underlying iterator. |
| 217 | */ |
| 218 | reverse_iterator |
| 219 | operator--(int) |
| 220 | { |
| 221 | reverse_iterator __tmp = *this; |
| 222 | ++current; |
| 223 | return __tmp; |
| 224 | } |
| 225 | |
| 226 | /** |
| 227 | * @return A reverse_iterator that refers to @c current - @a __n |
| 228 | * |
| 229 | * The underlying iterator must be a Random Access Iterator. |
| 230 | */ |
| 231 | reverse_iterator |
| 232 | operator+(difference_type __n) const |
| 233 | { return reverse_iterator(current - __n); } |
| 234 | |
| 235 | /** |
| 236 | * @return *this |
| 237 | * |
| 238 | * Moves the underlying iterator backwards @a __n steps. |
| 239 | * The underlying iterator must be a Random Access Iterator. |
| 240 | */ |
| 241 | reverse_iterator& |
| 242 | operator+=(difference_type __n) |
| 243 | { |
| 244 | current -= __n; |
| 245 | return *this; |
| 246 | } |
| 247 | |
| 248 | /** |
| 249 | * @return A reverse_iterator that refers to @c current - @a __n |
| 250 | * |
| 251 | * The underlying iterator must be a Random Access Iterator. |
| 252 | */ |
| 253 | reverse_iterator |
| 254 | operator-(difference_type __n) const |
| 255 | { return reverse_iterator(current + __n); } |
| 256 | |
| 257 | /** |
| 258 | * @return *this |
| 259 | * |
| 260 | * Moves the underlying iterator forwards @a __n steps. |
| 261 | * The underlying iterator must be a Random Access Iterator. |
| 262 | */ |
| 263 | reverse_iterator& |
| 264 | operator-=(difference_type __n) |
| 265 | { |
| 266 | current += __n; |
| 267 | return *this; |
| 268 | } |
| 269 | |
| 270 | /** |
| 271 | * @return The value at @c current - @a __n - 1 |
| 272 | * |
| 273 | * The underlying iterator must be a Random Access Iterator. |
| 274 | */ |
| 275 | reference |
| 276 | operator[](difference_type __n) const |
| 277 | { return *(*this + __n); } |
| 278 | }; |
| 279 | |
| 280 | //@{ |
| 281 | /** |
| 282 | * @param __x A %reverse_iterator. |
| 283 | * @param __y A %reverse_iterator. |
| 284 | * @return A simple bool. |
| 285 | * |
| 286 | * Reverse iterators forward many operations to their underlying base() |
| 287 | * iterators. Others are implemented in terms of one another. |
| 288 | * |
| 289 | */ |
| 290 | template<typename _Iterator> |
| 291 | inline bool |
| 292 | operator==(const reverse_iterator<_Iterator>& __x, |
| 293 | const reverse_iterator<_Iterator>& __y) |
| 294 | { return __x.base() == __y.base(); } |
| 295 | |
| 296 | template<typename _Iterator> |
| 297 | inline bool |
| 298 | operator<(const reverse_iterator<_Iterator>& __x, |
| 299 | const reverse_iterator<_Iterator>& __y) |
| 300 | { return __y.base() < __x.base(); } |
| 301 | |
| 302 | template<typename _Iterator> |
| 303 | inline bool |
| 304 | operator!=(const reverse_iterator<_Iterator>& __x, |
| 305 | const reverse_iterator<_Iterator>& __y) |
| 306 | { return !(__x == __y); } |
| 307 | |
| 308 | template<typename _Iterator> |
| 309 | inline bool |
| 310 | operator>(const reverse_iterator<_Iterator>& __x, |
| 311 | const reverse_iterator<_Iterator>& __y) |
| 312 | { return __y < __x; } |
| 313 | |
| 314 | template<typename _Iterator> |
| 315 | inline bool |
| 316 | operator<=(const reverse_iterator<_Iterator>& __x, |
| 317 | const reverse_iterator<_Iterator>& __y) |
| 318 | { return !(__y < __x); } |
| 319 | |
| 320 | template<typename _Iterator> |
| 321 | inline bool |
| 322 | operator>=(const reverse_iterator<_Iterator>& __x, |
| 323 | const reverse_iterator<_Iterator>& __y) |
| 324 | { return !(__x < __y); } |
| 325 | |
| 326 | template<typename _Iterator> |
| 327 | #if __cplusplus201402L < 201103L |
| 328 | inline typename reverse_iterator<_Iterator>::difference_type |
| 329 | operator-(const reverse_iterator<_Iterator>& __x, |
| 330 | const reverse_iterator<_Iterator>& __y) |
| 331 | #else |
| 332 | inline auto |
| 333 | operator-(const reverse_iterator<_Iterator>& __x, |
| 334 | const reverse_iterator<_Iterator>& __y) |
| 335 | -> decltype(__x.base() - __y.base()) |
| 336 | #endif |
| 337 | { return __y.base() - __x.base(); } |
| 338 | |
| 339 | template<typename _Iterator> |
| 340 | inline reverse_iterator<_Iterator> |
| 341 | operator+(typename reverse_iterator<_Iterator>::difference_type __n, |
| 342 | const reverse_iterator<_Iterator>& __x) |
| 343 | { return reverse_iterator<_Iterator>(__x.base() - __n); } |
| 344 | |
| 345 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
| 346 | // DR 280. Comparison of reverse_iterator to const reverse_iterator. |
| 347 | template<typename _IteratorL, typename _IteratorR> |
| 348 | inline bool |
| 349 | operator==(const reverse_iterator<_IteratorL>& __x, |
| 350 | const reverse_iterator<_IteratorR>& __y) |
| 351 | { return __x.base() == __y.base(); } |
| 352 | |
| 353 | template<typename _IteratorL, typename _IteratorR> |
| 354 | inline bool |
| 355 | operator<(const reverse_iterator<_IteratorL>& __x, |
| 356 | const reverse_iterator<_IteratorR>& __y) |
| 357 | { return __y.base() < __x.base(); } |
| 358 | |
| 359 | template<typename _IteratorL, typename _IteratorR> |
| 360 | inline bool |
| 361 | operator!=(const reverse_iterator<_IteratorL>& __x, |
| 362 | const reverse_iterator<_IteratorR>& __y) |
| 363 | { return !(__x == __y); } |
| 364 | |
| 365 | template<typename _IteratorL, typename _IteratorR> |
| 366 | inline bool |
| 367 | operator>(const reverse_iterator<_IteratorL>& __x, |
| 368 | const reverse_iterator<_IteratorR>& __y) |
| 369 | { return __y < __x; } |
| 370 | |
| 371 | template<typename _IteratorL, typename _IteratorR> |
| 372 | inline bool |
| 373 | operator<=(const reverse_iterator<_IteratorL>& __x, |
| 374 | const reverse_iterator<_IteratorR>& __y) |
| 375 | { return !(__y < __x); } |
| 376 | |
| 377 | template<typename _IteratorL, typename _IteratorR> |
| 378 | inline bool |
| 379 | operator>=(const reverse_iterator<_IteratorL>& __x, |
| 380 | const reverse_iterator<_IteratorR>& __y) |
| 381 | { return !(__x < __y); } |
| 382 | |
| 383 | template<typename _IteratorL, typename _IteratorR> |
| 384 | #if __cplusplus201402L >= 201103L |
| 385 | // DR 685. |
| 386 | inline auto |
| 387 | operator-(const reverse_iterator<_IteratorL>& __x, |
| 388 | const reverse_iterator<_IteratorR>& __y) |
| 389 | -> decltype(__y.base() - __x.base()) |
| 390 | #else |
| 391 | inline typename reverse_iterator<_IteratorL>::difference_type |
| 392 | operator-(const reverse_iterator<_IteratorL>& __x, |
| 393 | const reverse_iterator<_IteratorR>& __y) |
| 394 | #endif |
| 395 | { return __y.base() - __x.base(); } |
| 396 | //@} |
| 397 | |
| 398 | #if __cplusplus201402L >= 201103L |
| 399 | // Same as C++14 make_reverse_iterator but used in C++03 mode too. |
| 400 | template<typename _Iterator> |
| 401 | inline reverse_iterator<_Iterator> |
| 402 | __make_reverse_iterator(_Iterator __i) |
| 403 | { return reverse_iterator<_Iterator>(__i); } |
| 404 | |
| 405 | # if __cplusplus201402L > 201103L |
| 406 | # define __cpp_lib_make_reverse_iterator201402 201402 |
| 407 | |
| 408 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
| 409 | // DR 2285. make_reverse_iterator |
| 410 | /// Generator function for reverse_iterator. |
| 411 | template<typename _Iterator> |
| 412 | inline reverse_iterator<_Iterator> |
| 413 | make_reverse_iterator(_Iterator __i) |
| 414 | { return reverse_iterator<_Iterator>(__i); } |
| 415 | # endif |
| 416 | #endif |
| 417 | |
| 418 | #if __cplusplus201402L >= 201103L |
| 419 | template<typename _Iterator> |
| 420 | auto |
| 421 | __niter_base(reverse_iterator<_Iterator> __it) |
| 422 | -> decltype(__make_reverse_iterator(__niter_base(__it.base()))) |
| 423 | { return __make_reverse_iterator(__niter_base(__it.base())); } |
| 424 | |
| 425 | template<typename _Iterator> |
| 426 | struct __is_move_iterator<reverse_iterator<_Iterator> > |
| 427 | : __is_move_iterator<_Iterator> |
| 428 | { }; |
| 429 | |
| 430 | template<typename _Iterator> |
| 431 | auto |
| 432 | __miter_base(reverse_iterator<_Iterator> __it) |
| 433 | -> decltype(__make_reverse_iterator(__miter_base(__it.base()))) |
| 434 | { return __make_reverse_iterator(__miter_base(__it.base())); } |
| 435 | #endif |
| 436 | |
| 437 | // 24.4.2.2.1 back_insert_iterator |
| 438 | /** |
| 439 | * @brief Turns assignment into insertion. |
| 440 | * |
| 441 | * These are output iterators, constructed from a container-of-T. |
| 442 | * Assigning a T to the iterator appends it to the container using |
| 443 | * push_back. |
| 444 | * |
| 445 | * Tip: Using the back_inserter function to create these iterators can |
| 446 | * save typing. |
| 447 | */ |
| 448 | template<typename _Container> |
| 449 | class back_insert_iterator |
| 450 | : public iterator<output_iterator_tag, void, void, void, void> |
| 451 | { |
| 452 | protected: |
| 453 | _Container* container; |
| 454 | |
| 455 | public: |
| 456 | /// A nested typedef for the type of whatever container you used. |
| 457 | typedef _Container container_type; |
| 458 | |
| 459 | /// The only way to create this %iterator is with a container. |
| 460 | explicit |
| 461 | back_insert_iterator(_Container& __x) |
| 462 | : container(std::__addressof(__x)) { } |
| 463 | |
| 464 | /** |
| 465 | * @param __value An instance of whatever type |
| 466 | * container_type::const_reference is; presumably a |
| 467 | * reference-to-const T for container<T>. |
| 468 | * @return This %iterator, for chained operations. |
| 469 | * |
| 470 | * This kind of %iterator doesn't really have a @a position in the |
| 471 | * container (you can think of the position as being permanently at |
| 472 | * the end, if you like). Assigning a value to the %iterator will |
| 473 | * always append the value to the end of the container. |
| 474 | */ |
| 475 | #if __cplusplus201402L < 201103L |
| 476 | back_insert_iterator& |
| 477 | operator=(typename _Container::const_reference __value) |
| 478 | { |
| 479 | container->push_back(__value); |
| 480 | return *this; |
| 481 | } |
| 482 | #else |
| 483 | back_insert_iterator& |
| 484 | operator=(const typename _Container::value_type& __value) |
| 485 | { |
| 486 | container->push_back(__value); |
| 487 | return *this; |
| 488 | } |
| 489 | |
| 490 | back_insert_iterator& |
| 491 | operator=(typename _Container::value_type&& __value) |
| 492 | { |
| 493 | container->push_back(std::move(__value)); |
| 494 | return *this; |
| 495 | } |
| 496 | #endif |
| 497 | |
| 498 | /// Simply returns *this. |
| 499 | back_insert_iterator& |
| 500 | operator*() |
| 501 | { return *this; } |
| 502 | |
| 503 | /// Simply returns *this. (This %iterator does not @a move.) |
| 504 | back_insert_iterator& |
| 505 | operator++() |
| 506 | { return *this; } |
| 507 | |
| 508 | /// Simply returns *this. (This %iterator does not @a move.) |
| 509 | back_insert_iterator |
| 510 | operator++(int) |
| 511 | { return *this; } |
| 512 | }; |
| 513 | |
| 514 | /** |
| 515 | * @param __x A container of arbitrary type. |
| 516 | * @return An instance of back_insert_iterator working on @p __x. |
| 517 | * |
| 518 | * This wrapper function helps in creating back_insert_iterator instances. |
| 519 | * Typing the name of the %iterator requires knowing the precise full |
| 520 | * type of the container, which can be tedious and impedes generic |
| 521 | * programming. Using this function lets you take advantage of automatic |
| 522 | * template parameter deduction, making the compiler match the correct |
| 523 | * types for you. |
| 524 | */ |
| 525 | template<typename _Container> |
| 526 | inline back_insert_iterator<_Container> |
| 527 | back_inserter(_Container& __x) |
| 528 | { return back_insert_iterator<_Container>(__x); } |
| 529 | |
| 530 | /** |
| 531 | * @brief Turns assignment into insertion. |
| 532 | * |
| 533 | * These are output iterators, constructed from a container-of-T. |
| 534 | * Assigning a T to the iterator prepends it to the container using |
| 535 | * push_front. |
| 536 | * |
| 537 | * Tip: Using the front_inserter function to create these iterators can |
| 538 | * save typing. |
| 539 | */ |
| 540 | template<typename _Container> |
| 541 | class front_insert_iterator |
| 542 | : public iterator<output_iterator_tag, void, void, void, void> |
| 543 | { |
| 544 | protected: |
| 545 | _Container* container; |
| 546 | |
| 547 | public: |
| 548 | /// A nested typedef for the type of whatever container you used. |
| 549 | typedef _Container container_type; |
| 550 | |
| 551 | /// The only way to create this %iterator is with a container. |
| 552 | explicit front_insert_iterator(_Container& __x) |
| 553 | : container(std::__addressof(__x)) { } |
| 554 | |
| 555 | /** |
| 556 | * @param __value An instance of whatever type |
| 557 | * container_type::const_reference is; presumably a |
| 558 | * reference-to-const T for container<T>. |
| 559 | * @return This %iterator, for chained operations. |
| 560 | * |
| 561 | * This kind of %iterator doesn't really have a @a position in the |
| 562 | * container (you can think of the position as being permanently at |
| 563 | * the front, if you like). Assigning a value to the %iterator will |
| 564 | * always prepend the value to the front of the container. |
| 565 | */ |
| 566 | #if __cplusplus201402L < 201103L |
| 567 | front_insert_iterator& |
| 568 | operator=(typename _Container::const_reference __value) |
| 569 | { |
| 570 | container->push_front(__value); |
| 571 | return *this; |
| 572 | } |
| 573 | #else |
| 574 | front_insert_iterator& |
| 575 | operator=(const typename _Container::value_type& __value) |
| 576 | { |
| 577 | container->push_front(__value); |
| 578 | return *this; |
| 579 | } |
| 580 | |
| 581 | front_insert_iterator& |
| 582 | operator=(typename _Container::value_type&& __value) |
| 583 | { |
| 584 | container->push_front(std::move(__value)); |
| 585 | return *this; |
| 586 | } |
| 587 | #endif |
| 588 | |
| 589 | /// Simply returns *this. |
| 590 | front_insert_iterator& |
| 591 | operator*() |
| 592 | { return *this; } |
| 593 | |
| 594 | /// Simply returns *this. (This %iterator does not @a move.) |
| 595 | front_insert_iterator& |
| 596 | operator++() |
| 597 | { return *this; } |
| 598 | |
| 599 | /// Simply returns *this. (This %iterator does not @a move.) |
| 600 | front_insert_iterator |
| 601 | operator++(int) |
| 602 | { return *this; } |
| 603 | }; |
| 604 | |
| 605 | /** |
| 606 | * @param __x A container of arbitrary type. |
| 607 | * @return An instance of front_insert_iterator working on @p x. |
| 608 | * |
| 609 | * This wrapper function helps in creating front_insert_iterator instances. |
| 610 | * Typing the name of the %iterator requires knowing the precise full |
| 611 | * type of the container, which can be tedious and impedes generic |
| 612 | * programming. Using this function lets you take advantage of automatic |
| 613 | * template parameter deduction, making the compiler match the correct |
| 614 | * types for you. |
| 615 | */ |
| 616 | template<typename _Container> |
| 617 | inline front_insert_iterator<_Container> |
| 618 | front_inserter(_Container& __x) |
| 619 | { return front_insert_iterator<_Container>(__x); } |
| 620 | |
| 621 | /** |
| 622 | * @brief Turns assignment into insertion. |
| 623 | * |
| 624 | * These are output iterators, constructed from a container-of-T. |
| 625 | * Assigning a T to the iterator inserts it in the container at the |
| 626 | * %iterator's position, rather than overwriting the value at that |
| 627 | * position. |
| 628 | * |
| 629 | * (Sequences will actually insert a @e copy of the value before the |
| 630 | * %iterator's position.) |
| 631 | * |
| 632 | * Tip: Using the inserter function to create these iterators can |
| 633 | * save typing. |
| 634 | */ |
| 635 | template<typename _Container> |
| 636 | class insert_iterator |
| 637 | : public iterator<output_iterator_tag, void, void, void, void> |
| 638 | { |
| 639 | protected: |
| 640 | _Container* container; |
| 641 | typename _Container::iterator iter; |
| 642 | |
| 643 | public: |
| 644 | /// A nested typedef for the type of whatever container you used. |
| 645 | typedef _Container container_type; |
| 646 | |
| 647 | /** |
| 648 | * The only way to create this %iterator is with a container and an |
| 649 | * initial position (a normal %iterator into the container). |
| 650 | */ |
| 651 | insert_iterator(_Container& __x, typename _Container::iterator __i) |
| 652 | : container(std::__addressof(__x)), iter(__i) {} |
| 653 | |
| 654 | /** |
| 655 | * @param __value An instance of whatever type |
| 656 | * container_type::const_reference is; presumably a |
| 657 | * reference-to-const T for container<T>. |
| 658 | * @return This %iterator, for chained operations. |
| 659 | * |
| 660 | * This kind of %iterator maintains its own position in the |
| 661 | * container. Assigning a value to the %iterator will insert the |
| 662 | * value into the container at the place before the %iterator. |
| 663 | * |
| 664 | * The position is maintained such that subsequent assignments will |
| 665 | * insert values immediately after one another. For example, |
| 666 | * @code |
| 667 | * // vector v contains A and Z |
| 668 | * |
| 669 | * insert_iterator i (v, ++v.begin()); |
| 670 | * i = 1; |
| 671 | * i = 2; |
| 672 | * i = 3; |
| 673 | * |
| 674 | * // vector v contains A, 1, 2, 3, and Z |
| 675 | * @endcode |
| 676 | */ |
| 677 | #if __cplusplus201402L < 201103L |
| 678 | insert_iterator& |
| 679 | operator=(typename _Container::const_reference __value) |
| 680 | { |
| 681 | iter = container->insert(iter, __value); |
| 682 | ++iter; |
| 683 | return *this; |
| 684 | } |
| 685 | #else |
| 686 | insert_iterator& |
| 687 | operator=(const typename _Container::value_type& __value) |
| 688 | { |
| 689 | iter = container->insert(iter, __value); |
| 690 | ++iter; |
| 691 | return *this; |
| 692 | } |
| 693 | |
| 694 | insert_iterator& |
| 695 | operator=(typename _Container::value_type&& __value) |
| 696 | { |
| 697 | iter = container->insert(iter, std::move(__value)); |
| 698 | ++iter; |
| 699 | return *this; |
| 700 | } |
| 701 | #endif |
| 702 | |
| 703 | /// Simply returns *this. |
| 704 | insert_iterator& |
| 705 | operator*() |
| 706 | { return *this; } |
| 707 | |
| 708 | /// Simply returns *this. (This %iterator does not @a move.) |
| 709 | insert_iterator& |
| 710 | operator++() |
| 711 | { return *this; } |
| 712 | |
| 713 | /// Simply returns *this. (This %iterator does not @a move.) |
| 714 | insert_iterator& |
| 715 | operator++(int) |
| 716 | { return *this; } |
| 717 | }; |
| 718 | |
| 719 | /** |
| 720 | * @param __x A container of arbitrary type. |
| 721 | * @return An instance of insert_iterator working on @p __x. |
| 722 | * |
| 723 | * This wrapper function helps in creating insert_iterator instances. |
| 724 | * Typing the name of the %iterator requires knowing the precise full |
| 725 | * type of the container, which can be tedious and impedes generic |
| 726 | * programming. Using this function lets you take advantage of automatic |
| 727 | * template parameter deduction, making the compiler match the correct |
| 728 | * types for you. |
| 729 | */ |
| 730 | template<typename _Container, typename _Iterator> |
| 731 | inline insert_iterator<_Container> |
| 732 | inserter(_Container& __x, _Iterator __i) |
| 733 | { |
| 734 | return insert_iterator<_Container>(__x, |
| 735 | typename _Container::iterator(__i)); |
| 736 | } |
| 737 | |
| 738 | // @} group iterators |
| 739 | |
| 740 | _GLIBCXX_END_NAMESPACE_VERSION |
| 741 | } // namespace |
| 742 | |
| 743 | namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)__attribute__ ((__visibility__ ("default"))) |
| 744 | { |
| 745 | _GLIBCXX_BEGIN_NAMESPACE_VERSION |
| 746 | |
| 747 | // This iterator adapter is @a normal in the sense that it does not |
| 748 | // change the semantics of any of the operators of its iterator |
| 749 | // parameter. Its primary purpose is to convert an iterator that is |
| 750 | // not a class, e.g. a pointer, into an iterator that is a class. |
| 751 | // The _Container parameter exists solely so that different containers |
| 752 | // using this template can instantiate different types, even if the |
| 753 | // _Iterator parameter is the same. |
| 754 | using std::iterator_traits; |
| 755 | using std::iterator; |
| 756 | template<typename _Iterator, typename _Container> |
| 757 | class __normal_iterator |
| 758 | { |
| 759 | protected: |
| 760 | _Iterator _M_current; |
| 761 | |
| 762 | typedef iterator_traits<_Iterator> __traits_type; |
| 763 | |
| 764 | public: |
| 765 | typedef _Iterator iterator_type; |
| 766 | typedef typename __traits_type::iterator_category iterator_category; |
| 767 | typedef typename __traits_type::value_type value_type; |
| 768 | typedef typename __traits_type::difference_type difference_type; |
| 769 | typedef typename __traits_type::reference reference; |
| 770 | typedef typename __traits_type::pointer pointer; |
| 771 | |
| 772 | _GLIBCXX_CONSTEXPRconstexpr __normal_iterator() _GLIBCXX_NOEXCEPTnoexcept |
| 773 | : _M_current(_Iterator()) { } |
| 774 | |
| 775 | explicit |
| 776 | __normal_iterator(const _Iterator& __i) _GLIBCXX_NOEXCEPTnoexcept |
| 777 | : _M_current(__i) { } |
| 778 | |
| 779 | // Allow iterator to const_iterator conversion |
| 780 | template<typename _Iter> |
| 781 | __normal_iterator(const __normal_iterator<_Iter, |
| 782 | typename __enable_if< |
| 783 | (std::__are_same<_Iter, typename _Container::pointer>::__value), |
| 784 | _Container>::__type>& __i) _GLIBCXX_NOEXCEPTnoexcept |
| 785 | : _M_current(__i.base()) { } |
| 786 | |
| 787 | // Forward iterator requirements |
| 788 | reference |
| 789 | operator*() const _GLIBCXX_NOEXCEPTnoexcept |
| 790 | { return *_M_current; } |
| 791 | |
| 792 | pointer |
| 793 | operator->() const _GLIBCXX_NOEXCEPTnoexcept |
| 794 | { return _M_current; } |
| 795 | |
| 796 | __normal_iterator& |
| 797 | operator++( |