| 259 | } |
| 260 | |
| 261 | bool isMacroArgUsedHashHashExpansion(const clang::Expr &E, clang::ASTUnit &U) { |
| 262 | |
| 263 | auto &SrcManager = U.getASTContext().getSourceManager(); |
| 264 | auto &Preproc = U.getPreprocessor(); |
| 265 | auto *ExtSrc = Preproc.getExternalSource(); |
| 266 | if (ExtSrc) |
| 267 | ExtSrc->ReadDefinedMacros(); |
| 268 | |
| 269 | if (!SrcManager.isMacroArgExpansion(E.getExprLoc())) |
| 270 | return false; |
| 271 | auto MacroName = Preproc.getImmediateMacroName(E.getExprLoc()); |
| 272 | |
| 273 | clang::MacroInfo *MI = nullptr; |
| 274 | for (auto &Macro : Preproc.macros(false)) { |
| 275 | auto *II = Macro.first; |
| 276 | if (!II) |
| 277 | continue; |
| 278 | if (II->getName() != MacroName) |
| 279 | continue; |
| 280 | |
| 281 | auto *EMI = Preproc.getMacroInfo(II); |
| 282 | if (!EMI) |
| 283 | continue; |
| 284 | if (!EMI->isFunctionLike()) |
| 285 | continue; |
| 286 | |
| 287 | MI = EMI; |
| 288 | break; |
| 289 | } |
| 290 | |
| 291 | if (!MI) |
| 292 | return false; |
| 293 | |
| 294 | std::set<std::string> MacroParams; |
| 295 | for (auto *Param : MI->params()) |
| 296 | MacroParams.insert(Param->getName().str()); |
| 297 | |
| 298 | auto Tokens = MI->tokens(); |
| 299 | auto TokenSize = Tokens.size(); |
| 300 | for (int I = 0; I < (int)TokenSize - 1; ++I) { |
| 301 | if (Tokens[I].isNot(clang::tok::hashhash)) |
| 302 | continue; |
| 303 | if (Tokens[I + 1].isNot(clang::tok::identifier)) |
| 304 | continue; |
| 305 | |
| 306 | auto *II = Tokens[I + 1].getIdentifierInfo(); |
| 307 | if (!II) |
| 308 | continue; |
| 309 | if (MacroParams.find(II->getName().str()) == MacroParams.end()) |
| 310 | continue; |
| 311 | |
| 312 | return true; |
| 313 | } |
| 314 | |
| 315 | return false; |
| 316 | } |
| 317 | |
| 318 | std::set<clang::FunctionDecl *> |