John McCall | 275c10a | 2009-10-29 07:48:15 +0000 | [diff] [blame] | 1 | //===--- TemplateBase.cpp - Common template AST class implementation ------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | // |
| 10 | // This file implements common classes used throughout C++ template |
| 11 | // representations. |
| 12 | // |
| 13 | //===----------------------------------------------------------------------===// |
| 14 | |
John McCall | 275c10a | 2009-10-29 07:48:15 +0000 | [diff] [blame] | 15 | #include "clang/AST/TemplateBase.h" |
Douglas Gregor | 87dd697 | 2010-12-20 16:52:59 +0000 | [diff] [blame] | 16 | #include "clang/AST/ASTContext.h" |
John McCall | 275c10a | 2009-10-29 07:48:15 +0000 | [diff] [blame] | 17 | #include "clang/AST/DeclBase.h" |
Douglas Gregor | 74295b3 | 2009-11-23 12:52:47 +0000 | [diff] [blame] | 18 | #include "clang/AST/DeclTemplate.h" |
John McCall | 275c10a | 2009-10-29 07:48:15 +0000 | [diff] [blame] | 19 | #include "clang/AST/Expr.h" |
Douglas Gregor | be230c3 | 2011-01-03 17:17:50 +0000 | [diff] [blame] | 20 | #include "clang/AST/ExprCXX.h" |
John McCall | 833ca99 | 2009-10-29 08:12:44 +0000 | [diff] [blame] | 21 | #include "clang/AST/TypeLoc.h" |
Douglas Gregor | a933319 | 2010-05-08 17:41:32 +0000 | [diff] [blame] | 22 | #include "clang/Basic/Diagnostic.h" |
Douglas Gregor | 87dd697 | 2010-12-20 16:52:59 +0000 | [diff] [blame] | 23 | #include "llvm/ADT/FoldingSet.h" |
Douglas Gregor | 203e6a3 | 2011-01-11 23:09:57 +0000 | [diff] [blame] | 24 | #include <algorithm> |
John McCall | 275c10a | 2009-10-29 07:48:15 +0000 | [diff] [blame] | 25 | |
| 26 | using namespace clang; |
| 27 | |
| 28 | //===----------------------------------------------------------------------===// |
| 29 | // TemplateArgument Implementation |
| 30 | //===----------------------------------------------------------------------===// |
| 31 | |
Douglas Gregor | 203e6a3 | 2011-01-11 23:09:57 +0000 | [diff] [blame] | 32 | TemplateArgument TemplateArgument::CreatePackCopy(ASTContext &Context, |
| 33 | const TemplateArgument *Args, |
| 34 | unsigned NumArgs) { |
| 35 | if (NumArgs == 0) |
| 36 | return TemplateArgument(0, 0); |
| 37 | |
| 38 | TemplateArgument *Storage = new (Context) TemplateArgument [NumArgs]; |
| 39 | std::copy(Args, Args + NumArgs, Storage); |
| 40 | return TemplateArgument(Storage, NumArgs); |
| 41 | } |
| 42 | |
Douglas Gregor | bebbe0d | 2010-12-15 01:34:56 +0000 | [diff] [blame] | 43 | bool TemplateArgument::isDependent() const { |
| 44 | switch (getKind()) { |
| 45 | case Null: |
| 46 | assert(false && "Should not have a NULL template argument"); |
| 47 | return false; |
| 48 | |
| 49 | case Type: |
| 50 | return getAsType()->isDependentType(); |
| 51 | |
| 52 | case Template: |
| 53 | return getAsTemplate().isDependent(); |
Douglas Gregor | a7fc901 | 2011-01-05 18:58:31 +0000 | [diff] [blame] | 54 | |
| 55 | case TemplateExpansion: |
| 56 | return true; |
| 57 | |
Douglas Gregor | bebbe0d | 2010-12-15 01:34:56 +0000 | [diff] [blame] | 58 | case Declaration: |
| 59 | if (DeclContext *DC = dyn_cast<DeclContext>(getAsDecl())) |
| 60 | return DC->isDependentContext(); |
| 61 | return getAsDecl()->getDeclContext()->isDependentContext(); |
| 62 | |
| 63 | case Integral: |
| 64 | // Never dependent |
| 65 | return false; |
| 66 | |
| 67 | case Expression: |
| 68 | return (getAsExpr()->isTypeDependent() || getAsExpr()->isValueDependent()); |
| 69 | |
| 70 | case Pack: |
| 71 | for (pack_iterator P = pack_begin(), PEnd = pack_end(); P != PEnd; ++P) { |
| 72 | if (P->isDependent()) |
| 73 | return true; |
| 74 | } |
| 75 | |
| 76 | return false; |
| 77 | } |
| 78 | |
| 79 | return false; |
| 80 | } |
| 81 | |
Douglas Gregor | 8491ffe | 2010-12-20 22:05:00 +0000 | [diff] [blame] | 82 | bool TemplateArgument::isPackExpansion() const { |
| 83 | switch (getKind()) { |
| 84 | case Null: |
| 85 | case Declaration: |
| 86 | case Integral: |
| 87 | case Pack: |
Douglas Gregor | a7fc901 | 2011-01-05 18:58:31 +0000 | [diff] [blame] | 88 | case Template: |
Douglas Gregor | 8491ffe | 2010-12-20 22:05:00 +0000 | [diff] [blame] | 89 | return false; |
| 90 | |
Douglas Gregor | a7fc901 | 2011-01-05 18:58:31 +0000 | [diff] [blame] | 91 | case TemplateExpansion: |
| 92 | return true; |
| 93 | |
Douglas Gregor | 8491ffe | 2010-12-20 22:05:00 +0000 | [diff] [blame] | 94 | case Type: |
Douglas Gregor | be230c3 | 2011-01-03 17:17:50 +0000 | [diff] [blame] | 95 | return isa<PackExpansionType>(getAsType()); |
Douglas Gregor | a7fc901 | 2011-01-05 18:58:31 +0000 | [diff] [blame] | 96 | |
Douglas Gregor | 8491ffe | 2010-12-20 22:05:00 +0000 | [diff] [blame] | 97 | case Expression: |
Douglas Gregor | be230c3 | 2011-01-03 17:17:50 +0000 | [diff] [blame] | 98 | return isa<PackExpansionExpr>(getAsExpr()); |
Douglas Gregor | 8491ffe | 2010-12-20 22:05:00 +0000 | [diff] [blame] | 99 | } |
| 100 | |
| 101 | return false; |
| 102 | } |
| 103 | |
Douglas Gregor | d093722 | 2010-12-13 22:49:22 +0000 | [diff] [blame] | 104 | bool TemplateArgument::containsUnexpandedParameterPack() const { |
| 105 | switch (getKind()) { |
| 106 | case Null: |
| 107 | case Declaration: |
| 108 | case Integral: |
Douglas Gregor | a7fc901 | 2011-01-05 18:58:31 +0000 | [diff] [blame] | 109 | case TemplateExpansion: |
Douglas Gregor | d093722 | 2010-12-13 22:49:22 +0000 | [diff] [blame] | 110 | break; |
| 111 | |
| 112 | case Type: |
| 113 | if (getAsType()->containsUnexpandedParameterPack()) |
| 114 | return true; |
| 115 | break; |
| 116 | |
| 117 | case Template: |
Douglas Gregor | a7fc901 | 2011-01-05 18:58:31 +0000 | [diff] [blame] | 118 | if (getAsTemplate().containsUnexpandedParameterPack()) |
Douglas Gregor | d093722 | 2010-12-13 22:49:22 +0000 | [diff] [blame] | 119 | return true; |
| 120 | break; |
| 121 | |
| 122 | case Expression: |
| 123 | if (getAsExpr()->containsUnexpandedParameterPack()) |
| 124 | return true; |
| 125 | break; |
| 126 | |
| 127 | case Pack: |
| 128 | for (pack_iterator P = pack_begin(), PEnd = pack_end(); P != PEnd; ++P) |
| 129 | if (P->containsUnexpandedParameterPack()) |
| 130 | return true; |
| 131 | |
| 132 | break; |
| 133 | } |
| 134 | |
| 135 | return false; |
| 136 | } |
| 137 | |
John McCall | 275c10a | 2009-10-29 07:48:15 +0000 | [diff] [blame] | 138 | void TemplateArgument::Profile(llvm::FoldingSetNodeID &ID, |
Jay Foad | 4ba2a17 | 2011-01-12 09:06:06 +0000 | [diff] [blame] | 139 | const ASTContext &Context) const { |
John McCall | 275c10a | 2009-10-29 07:48:15 +0000 | [diff] [blame] | 140 | ID.AddInteger(Kind); |
| 141 | switch (Kind) { |
| 142 | case Null: |
| 143 | break; |
| 144 | |
| 145 | case Type: |
| 146 | getAsType().Profile(ID); |
| 147 | break; |
| 148 | |
| 149 | case Declaration: |
| 150 | ID.AddPointer(getAsDecl()? getAsDecl()->getCanonicalDecl() : 0); |
| 151 | break; |
| 152 | |
Douglas Gregor | 788cd06 | 2009-11-11 01:00:40 +0000 | [diff] [blame] | 153 | case Template: |
Douglas Gregor | a7fc901 | 2011-01-05 18:58:31 +0000 | [diff] [blame] | 154 | case TemplateExpansion: { |
| 155 | TemplateName Template = getAsTemplateOrTemplatePattern(); |
Douglas Gregor | 74295b3 | 2009-11-23 12:52:47 +0000 | [diff] [blame] | 156 | if (TemplateTemplateParmDecl *TTP |
| 157 | = dyn_cast_or_null<TemplateTemplateParmDecl>( |
Douglas Gregor | a7fc901 | 2011-01-05 18:58:31 +0000 | [diff] [blame] | 158 | Template.getAsTemplateDecl())) { |
Douglas Gregor | 74295b3 | 2009-11-23 12:52:47 +0000 | [diff] [blame] | 159 | ID.AddBoolean(true); |
| 160 | ID.AddInteger(TTP->getDepth()); |
| 161 | ID.AddInteger(TTP->getPosition()); |
Douglas Gregor | ba68eca | 2011-01-05 17:40:24 +0000 | [diff] [blame] | 162 | ID.AddBoolean(TTP->isParameterPack()); |
Douglas Gregor | 74295b3 | 2009-11-23 12:52:47 +0000 | [diff] [blame] | 163 | } else { |
| 164 | ID.AddBoolean(false); |
Douglas Gregor | a7fc901 | 2011-01-05 18:58:31 +0000 | [diff] [blame] | 165 | ID.AddPointer(Context.getCanonicalTemplateName(Template) |
| 166 | .getAsVoidPointer()); |
Douglas Gregor | 74295b3 | 2009-11-23 12:52:47 +0000 | [diff] [blame] | 167 | } |
Douglas Gregor | 788cd06 | 2009-11-11 01:00:40 +0000 | [diff] [blame] | 168 | break; |
Douglas Gregor | a7fc901 | 2011-01-05 18:58:31 +0000 | [diff] [blame] | 169 | } |
Douglas Gregor | 788cd06 | 2009-11-11 01:00:40 +0000 | [diff] [blame] | 170 | |
John McCall | 275c10a | 2009-10-29 07:48:15 +0000 | [diff] [blame] | 171 | case Integral: |
| 172 | getAsIntegral()->Profile(ID); |
| 173 | getIntegralType().Profile(ID); |
| 174 | break; |
| 175 | |
| 176 | case Expression: |
| 177 | getAsExpr()->Profile(ID, Context, true); |
| 178 | break; |
| 179 | |
| 180 | case Pack: |
| 181 | ID.AddInteger(Args.NumArgs); |
| 182 | for (unsigned I = 0; I != Args.NumArgs; ++I) |
| 183 | Args.Args[I].Profile(ID, Context); |
| 184 | } |
| 185 | } |
John McCall | 833ca99 | 2009-10-29 08:12:44 +0000 | [diff] [blame] | 186 | |
John McCall | 3350095 | 2010-06-11 00:33:02 +0000 | [diff] [blame] | 187 | bool TemplateArgument::structurallyEquals(const TemplateArgument &Other) const { |
| 188 | if (getKind() != Other.getKind()) return false; |
| 189 | |
| 190 | switch (getKind()) { |
| 191 | case Null: |
| 192 | case Type: |
| 193 | case Declaration: |
Douglas Gregor | a7fc901 | 2011-01-05 18:58:31 +0000 | [diff] [blame] | 194 | case Expression: |
| 195 | case Template: |
| 196 | case TemplateExpansion: |
John McCall | 3350095 | 2010-06-11 00:33:02 +0000 | [diff] [blame] | 197 | return TypeOrValue == Other.TypeOrValue; |
| 198 | |
| 199 | case Integral: |
| 200 | return getIntegralType() == Other.getIntegralType() && |
| 201 | *getAsIntegral() == *Other.getAsIntegral(); |
| 202 | |
| 203 | case Pack: |
| 204 | if (Args.NumArgs != Other.Args.NumArgs) return false; |
| 205 | for (unsigned I = 0, E = Args.NumArgs; I != E; ++I) |
| 206 | if (!Args.Args[I].structurallyEquals(Other.Args.Args[I])) |
| 207 | return false; |
| 208 | return true; |
| 209 | } |
| 210 | |
| 211 | // Suppress warnings. |
| 212 | return false; |
| 213 | } |
| 214 | |
Douglas Gregor | e02e262 | 2010-12-22 21:19:48 +0000 | [diff] [blame] | 215 | TemplateArgument TemplateArgument::getPackExpansionPattern() const { |
| 216 | assert(isPackExpansion()); |
| 217 | |
| 218 | switch (getKind()) { |
Douglas Gregor | ba68eca | 2011-01-05 17:40:24 +0000 | [diff] [blame] | 219 | case Type: |
| 220 | return getAsType()->getAs<PackExpansionType>()->getPattern(); |
| 221 | |
| 222 | case Expression: |
| 223 | return cast<PackExpansionExpr>(getAsExpr())->getPattern(); |
| 224 | |
Douglas Gregor | a7fc901 | 2011-01-05 18:58:31 +0000 | [diff] [blame] | 225 | case TemplateExpansion: |
| 226 | return TemplateArgument(getAsTemplateOrTemplatePattern(), false); |
Douglas Gregor | ba68eca | 2011-01-05 17:40:24 +0000 | [diff] [blame] | 227 | |
| 228 | case Declaration: |
| 229 | case Integral: |
| 230 | case Pack: |
| 231 | case Null: |
Douglas Gregor | a7fc901 | 2011-01-05 18:58:31 +0000 | [diff] [blame] | 232 | case Template: |
Douglas Gregor | ba68eca | 2011-01-05 17:40:24 +0000 | [diff] [blame] | 233 | return TemplateArgument(); |
Douglas Gregor | e02e262 | 2010-12-22 21:19:48 +0000 | [diff] [blame] | 234 | } |
| 235 | |
| 236 | return TemplateArgument(); |
| 237 | } |
| 238 | |
Douglas Gregor | 87dd697 | 2010-12-20 16:52:59 +0000 | [diff] [blame] | 239 | void TemplateArgument::print(const PrintingPolicy &Policy, |
| 240 | llvm::raw_ostream &Out) const { |
| 241 | switch (getKind()) { |
| 242 | case Null: |
| 243 | Out << "<no value>"; |
| 244 | break; |
| 245 | |
| 246 | case Type: { |
| 247 | std::string TypeStr; |
| 248 | getAsType().getAsStringInternal(TypeStr, Policy); |
| 249 | Out << TypeStr; |
| 250 | break; |
| 251 | } |
| 252 | |
| 253 | case Declaration: { |
| 254 | bool Unnamed = true; |
| 255 | if (NamedDecl *ND = dyn_cast_or_null<NamedDecl>(getAsDecl())) { |
| 256 | if (ND->getDeclName()) { |
| 257 | Unnamed = false; |
| 258 | Out << ND->getNameAsString(); |
| 259 | } |
| 260 | } |
| 261 | |
| 262 | if (Unnamed) { |
| 263 | Out << "<anonymous>"; |
| 264 | } |
| 265 | break; |
| 266 | } |
| 267 | |
Douglas Gregor | a7fc901 | 2011-01-05 18:58:31 +0000 | [diff] [blame] | 268 | case Template: |
Douglas Gregor | 87dd697 | 2010-12-20 16:52:59 +0000 | [diff] [blame] | 269 | getAsTemplate().print(Out, Policy); |
| 270 | break; |
Douglas Gregor | a7fc901 | 2011-01-05 18:58:31 +0000 | [diff] [blame] | 271 | |
| 272 | case TemplateExpansion: |
| 273 | getAsTemplateOrTemplatePattern().print(Out, Policy); |
| 274 | Out << "..."; |
| 275 | break; |
| 276 | |
Douglas Gregor | 87dd697 | 2010-12-20 16:52:59 +0000 | [diff] [blame] | 277 | case Integral: { |
| 278 | Out << getAsIntegral()->toString(10); |
| 279 | break; |
| 280 | } |
| 281 | |
Douglas Gregor | ba68eca | 2011-01-05 17:40:24 +0000 | [diff] [blame] | 282 | case Expression: |
Douglas Gregor | 87dd697 | 2010-12-20 16:52:59 +0000 | [diff] [blame] | 283 | getAsExpr()->printPretty(Out, 0, Policy); |
| 284 | break; |
Douglas Gregor | 87dd697 | 2010-12-20 16:52:59 +0000 | [diff] [blame] | 285 | |
| 286 | case Pack: |
| 287 | Out << "<"; |
| 288 | bool First = true; |
| 289 | for (TemplateArgument::pack_iterator P = pack_begin(), PEnd = pack_end(); |
| 290 | P != PEnd; ++P) { |
| 291 | if (First) |
| 292 | First = false; |
| 293 | else |
| 294 | Out << ", "; |
| 295 | |
| 296 | P->print(Policy, Out); |
| 297 | } |
| 298 | Out << ">"; |
| 299 | break; |
| 300 | } |
| 301 | } |
| 302 | |
John McCall | 833ca99 | 2009-10-29 08:12:44 +0000 | [diff] [blame] | 303 | //===----------------------------------------------------------------------===// |
| 304 | // TemplateArgumentLoc Implementation |
| 305 | //===----------------------------------------------------------------------===// |
| 306 | |
Douglas Gregor | b0ddf3a | 2011-01-06 00:33:28 +0000 | [diff] [blame] | 307 | TemplateArgumentLocInfo::TemplateArgumentLocInfo() { |
| 308 | memset(this, 0, sizeof(TemplateArgumentLocInfo)); |
| 309 | } |
| 310 | |
John McCall | 828bff2 | 2009-10-29 18:45:58 +0000 | [diff] [blame] | 311 | SourceRange TemplateArgumentLoc::getSourceRange() const { |
John McCall | 833ca99 | 2009-10-29 08:12:44 +0000 | [diff] [blame] | 312 | switch (Argument.getKind()) { |
| 313 | case TemplateArgument::Expression: |
John McCall | 828bff2 | 2009-10-29 18:45:58 +0000 | [diff] [blame] | 314 | return getSourceExpression()->getSourceRange(); |
Zhanyong Wan | f38ef0c | 2010-09-03 23:50:56 +0000 | [diff] [blame] | 315 | |
John McCall | 833ca99 | 2009-10-29 08:12:44 +0000 | [diff] [blame] | 316 | case TemplateArgument::Declaration: |
John McCall | 828bff2 | 2009-10-29 18:45:58 +0000 | [diff] [blame] | 317 | return getSourceDeclExpression()->getSourceRange(); |
Zhanyong Wan | f38ef0c | 2010-09-03 23:50:56 +0000 | [diff] [blame] | 318 | |
John McCall | 828bff2 | 2009-10-29 18:45:58 +0000 | [diff] [blame] | 319 | case TemplateArgument::Type: |
Zhanyong Wan | f38ef0c | 2010-09-03 23:50:56 +0000 | [diff] [blame] | 320 | if (TypeSourceInfo *TSI = getTypeSourceInfo()) |
| 321 | return TSI->getTypeLoc().getSourceRange(); |
| 322 | else |
| 323 | return SourceRange(); |
| 324 | |
Douglas Gregor | a7fc901 | 2011-01-05 18:58:31 +0000 | [diff] [blame] | 325 | case TemplateArgument::Template: |
Douglas Gregor | 788cd06 | 2009-11-11 01:00:40 +0000 | [diff] [blame] | 326 | if (getTemplateQualifierRange().isValid()) |
Douglas Gregor | a7fc901 | 2011-01-05 18:58:31 +0000 | [diff] [blame] | 327 | return SourceRange(getTemplateQualifierRange().getBegin(), |
| 328 | getTemplateNameLoc()); |
| 329 | return SourceRange(getTemplateNameLoc()); |
| 330 | |
| 331 | case TemplateArgument::TemplateExpansion: |
| 332 | if (getTemplateQualifierRange().isValid()) |
| 333 | return SourceRange(getTemplateQualifierRange().getBegin(), |
| 334 | getTemplateEllipsisLoc()); |
| 335 | return SourceRange(getTemplateNameLoc(), getTemplateEllipsisLoc()); |
| 336 | |
John McCall | 833ca99 | 2009-10-29 08:12:44 +0000 | [diff] [blame] | 337 | case TemplateArgument::Integral: |
| 338 | case TemplateArgument::Pack: |
| 339 | case TemplateArgument::Null: |
John McCall | 828bff2 | 2009-10-29 18:45:58 +0000 | [diff] [blame] | 340 | return SourceRange(); |
John McCall | 833ca99 | 2009-10-29 08:12:44 +0000 | [diff] [blame] | 341 | } |
| 342 | |
| 343 | // Silence bonus gcc warning. |
John McCall | 828bff2 | 2009-10-29 18:45:58 +0000 | [diff] [blame] | 344 | return SourceRange(); |
John McCall | 833ca99 | 2009-10-29 08:12:44 +0000 | [diff] [blame] | 345 | } |
Douglas Gregor | a933319 | 2010-05-08 17:41:32 +0000 | [diff] [blame] | 346 | |
Douglas Gregor | 8491ffe | 2010-12-20 22:05:00 +0000 | [diff] [blame] | 347 | TemplateArgumentLoc |
| 348 | TemplateArgumentLoc::getPackExpansionPattern(SourceLocation &Ellipsis, |
Douglas Gregor | cded4f6 | 2011-01-14 17:04:44 +0000 | [diff] [blame] | 349 | llvm::Optional<unsigned> &NumExpansions, |
Douglas Gregor | 8491ffe | 2010-12-20 22:05:00 +0000 | [diff] [blame] | 350 | ASTContext &Context) const { |
| 351 | assert(Argument.isPackExpansion()); |
| 352 | |
| 353 | switch (Argument.getKind()) { |
| 354 | case TemplateArgument::Type: { |
Douglas Gregor | 03491de | 2010-12-21 22:10:26 +0000 | [diff] [blame] | 355 | // FIXME: We shouldn't ever have to worry about missing |
| 356 | // type-source info! |
| 357 | TypeSourceInfo *ExpansionTSInfo = getTypeSourceInfo(); |
| 358 | if (!ExpansionTSInfo) |
| 359 | ExpansionTSInfo = Context.getTrivialTypeSourceInfo( |
| 360 | getArgument().getAsType(), |
| 361 | Ellipsis); |
Douglas Gregor | 8491ffe | 2010-12-20 22:05:00 +0000 | [diff] [blame] | 362 | PackExpansionTypeLoc Expansion |
Douglas Gregor | 03491de | 2010-12-21 22:10:26 +0000 | [diff] [blame] | 363 | = cast<PackExpansionTypeLoc>(ExpansionTSInfo->getTypeLoc()); |
Douglas Gregor | 8491ffe | 2010-12-20 22:05:00 +0000 | [diff] [blame] | 364 | Ellipsis = Expansion.getEllipsisLoc(); |
| 365 | |
| 366 | TypeLoc Pattern = Expansion.getPatternLoc(); |
Douglas Gregor | cded4f6 | 2011-01-14 17:04:44 +0000 | [diff] [blame] | 367 | NumExpansions = Expansion.getTypePtr()->getNumExpansions(); |
Douglas Gregor | 8491ffe | 2010-12-20 22:05:00 +0000 | [diff] [blame] | 368 | |
| 369 | // FIXME: This is horrible. We know where the source location data is for |
| 370 | // the pattern, and we have the pattern's type, but we are forced to copy |
| 371 | // them into an ASTContext because TypeSourceInfo bundles them together |
| 372 | // and TemplateArgumentLoc traffics in TypeSourceInfo pointers. |
| 373 | TypeSourceInfo *PatternTSInfo |
| 374 | = Context.CreateTypeSourceInfo(Pattern.getType(), |
| 375 | Pattern.getFullDataSize()); |
| 376 | memcpy(PatternTSInfo->getTypeLoc().getOpaqueData(), |
| 377 | Pattern.getOpaqueData(), Pattern.getFullDataSize()); |
| 378 | return TemplateArgumentLoc(TemplateArgument(Pattern.getType()), |
| 379 | PatternTSInfo); |
| 380 | } |
| 381 | |
Douglas Gregor | be230c3 | 2011-01-03 17:17:50 +0000 | [diff] [blame] | 382 | case TemplateArgument::Expression: { |
Douglas Gregor | b0ddf3a | 2011-01-06 00:33:28 +0000 | [diff] [blame] | 383 | PackExpansionExpr *Expansion |
| 384 | = cast<PackExpansionExpr>(Argument.getAsExpr()); |
| 385 | Expr *Pattern = Expansion->getPattern(); |
| 386 | Ellipsis = Expansion->getEllipsisLoc(); |
Douglas Gregor | 67fd125 | 2011-01-14 21:20:45 +0000 | [diff] [blame^] | 387 | NumExpansions = Expansion->getNumExpansions(); |
Douglas Gregor | be230c3 | 2011-01-03 17:17:50 +0000 | [diff] [blame] | 388 | return TemplateArgumentLoc(Pattern, Pattern); |
| 389 | } |
Douglas Gregor | a7fc901 | 2011-01-05 18:58:31 +0000 | [diff] [blame] | 390 | |
| 391 | case TemplateArgument::TemplateExpansion: |
Douglas Gregor | cded4f6 | 2011-01-14 17:04:44 +0000 | [diff] [blame] | 392 | // FIXME: Variadic templates num expansions |
Douglas Gregor | b0ddf3a | 2011-01-06 00:33:28 +0000 | [diff] [blame] | 393 | Ellipsis = getTemplateEllipsisLoc(); |
Douglas Gregor | ba68eca | 2011-01-05 17:40:24 +0000 | [diff] [blame] | 394 | return TemplateArgumentLoc(Argument.getPackExpansionPattern(), |
| 395 | getTemplateQualifierRange(), |
| 396 | getTemplateNameLoc()); |
Douglas Gregor | 8491ffe | 2010-12-20 22:05:00 +0000 | [diff] [blame] | 397 | |
| 398 | case TemplateArgument::Declaration: |
Douglas Gregor | a7fc901 | 2011-01-05 18:58:31 +0000 | [diff] [blame] | 399 | case TemplateArgument::Template: |
Douglas Gregor | 8491ffe | 2010-12-20 22:05:00 +0000 | [diff] [blame] | 400 | case TemplateArgument::Integral: |
| 401 | case TemplateArgument::Pack: |
| 402 | case TemplateArgument::Null: |
| 403 | return TemplateArgumentLoc(); |
| 404 | } |
| 405 | |
| 406 | return TemplateArgumentLoc(); |
| 407 | } |
| 408 | |
Douglas Gregor | a933319 | 2010-05-08 17:41:32 +0000 | [diff] [blame] | 409 | const DiagnosticBuilder &clang::operator<<(const DiagnosticBuilder &DB, |
| 410 | const TemplateArgument &Arg) { |
| 411 | switch (Arg.getKind()) { |
| 412 | case TemplateArgument::Null: |
John McCall | 67c4a0c | 2010-08-05 04:58:04 +0000 | [diff] [blame] | 413 | // This is bad, but not as bad as crashing because of argument |
| 414 | // count mismatches. |
| 415 | return DB << "(null template argument)"; |
Douglas Gregor | a933319 | 2010-05-08 17:41:32 +0000 | [diff] [blame] | 416 | |
| 417 | case TemplateArgument::Type: |
| 418 | return DB << Arg.getAsType(); |
| 419 | |
| 420 | case TemplateArgument::Declaration: |
| 421 | return DB << Arg.getAsDecl(); |
| 422 | |
| 423 | case TemplateArgument::Integral: |
| 424 | return DB << Arg.getAsIntegral()->toString(10); |
| 425 | |
| 426 | case TemplateArgument::Template: |
Douglas Gregor | a7fc901 | 2011-01-05 18:58:31 +0000 | [diff] [blame] | 427 | return DB << Arg.getAsTemplate(); |
| 428 | |
| 429 | case TemplateArgument::TemplateExpansion: |
| 430 | return DB << Arg.getAsTemplateOrTemplatePattern() << "..."; |
| 431 | |
Douglas Gregor | a933319 | 2010-05-08 17:41:32 +0000 | [diff] [blame] | 432 | case TemplateArgument::Expression: { |
| 433 | // This shouldn't actually ever happen, so it's okay that we're |
| 434 | // regurgitating an expression here. |
| 435 | // FIXME: We're guessing at LangOptions! |
| 436 | llvm::SmallString<32> Str; |
| 437 | llvm::raw_svector_ostream OS(Str); |
| 438 | LangOptions LangOpts; |
| 439 | LangOpts.CPlusPlus = true; |
| 440 | PrintingPolicy Policy(LangOpts); |
| 441 | Arg.getAsExpr()->printPretty(OS, 0, Policy); |
| 442 | return DB << OS.str(); |
| 443 | } |
| 444 | |
Douglas Gregor | 87dd697 | 2010-12-20 16:52:59 +0000 | [diff] [blame] | 445 | case TemplateArgument::Pack: { |
| 446 | // FIXME: We're guessing at LangOptions! |
| 447 | llvm::SmallString<32> Str; |
| 448 | llvm::raw_svector_ostream OS(Str); |
| 449 | LangOptions LangOpts; |
| 450 | LangOpts.CPlusPlus = true; |
| 451 | PrintingPolicy Policy(LangOpts); |
| 452 | Arg.print(Policy, OS); |
| 453 | return DB << OS.str(); |
| 454 | } |
Douglas Gregor | a933319 | 2010-05-08 17:41:32 +0000 | [diff] [blame] | 455 | } |
| 456 | |
| 457 | return DB; |
| 458 | } |