1 //===- SourceLocation.cpp - Compact identifier for Source Files -----------===// 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 defines accessor methods for the FullSourceLoc class. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "clang/Basic/SourceLocation.h" 15 #include "clang/Basic/LLVM.h" 16 #include "clang/Basic/PrettyStackTrace.h" 17 #include "clang/Basic/SourceManager.h" 18 #include "llvm/ADT/StringRef.h" 19 #include "llvm/Support/Compiler.h" 20 #include "llvm/Support/MemoryBuffer.h" 21 #include "llvm/Support/raw_ostream.h" 22 #include <cassert> 23 #include <string> 24 #include <utility> 25 26 using namespace clang; 27 28 //===----------------------------------------------------------------------===// 29 // PrettyStackTraceLoc 30 //===----------------------------------------------------------------------===// 31 32 void PrettyStackTraceLoc::print(raw_ostream &OS) const { 33 if (Loc.isValid()) { 34 Loc.print(OS, SM); 35 OS << ": "; 36 } 37 OS << Message << '\n'; 38 } 39 40 //===----------------------------------------------------------------------===// 41 // SourceLocation 42 //===----------------------------------------------------------------------===// 43 44 void SourceLocation::print(raw_ostream &OS, const SourceManager &SM)const{ 45 if (!isValid()) { 46 OS << "<invalid loc>"; 47 return; 48 } 49 50 if (isFileID()) { 51 PresumedLoc PLoc = SM.getPresumedLoc(*this); 52 53 if (PLoc.isInvalid()) { 54 OS << "<invalid>"; 55 return; 56 } 57 // The macro expansion and spelling pos is identical for file locs. 58 OS << PLoc.getFilename() << ':' << PLoc.getLine() 59 << ':' << PLoc.getColumn(); 60 return; 61 } 62 63 SM.getExpansionLoc(*this).print(OS, SM); 64 65 OS << " <Spelling="; 66 SM.getSpellingLoc(*this).print(OS, SM); 67 OS << '>'; 68 } 69 70 LLVM_DUMP_METHOD std::string 71 SourceLocation::printToString(const SourceManager &SM) const { 72 std::string S; 73 llvm::raw_string_ostream OS(S); 74 print(OS, SM); 75 return OS.str(); 76 } 77 78 LLVM_DUMP_METHOD void SourceLocation::dump(const SourceManager &SM) const { 79 print(llvm::errs(), SM); 80 } 81 82 //===----------------------------------------------------------------------===// 83 // FullSourceLoc 84 //===----------------------------------------------------------------------===// 85 86 FileID FullSourceLoc::getFileID() const { 87 assert(isValid()); 88 return SrcMgr->getFileID(*this); 89 } 90 91 FullSourceLoc FullSourceLoc::getExpansionLoc() const { 92 assert(isValid()); 93 return FullSourceLoc(SrcMgr->getExpansionLoc(*this), *SrcMgr); 94 } 95 96 FullSourceLoc FullSourceLoc::getSpellingLoc() const { 97 assert(isValid()); 98 return FullSourceLoc(SrcMgr->getSpellingLoc(*this), *SrcMgr); 99 } 100 101 FullSourceLoc FullSourceLoc::getFileLoc() const { 102 assert(isValid()); 103 return FullSourceLoc(SrcMgr->getFileLoc(*this), *SrcMgr); 104 } 105 106 PresumedLoc FullSourceLoc::getPresumedLoc(bool UseLineDirectives) const { 107 if (!isValid()) 108 return PresumedLoc(); 109 110 return SrcMgr->getPresumedLoc(*this, UseLineDirectives); 111 } 112 113 bool FullSourceLoc::isMacroArgExpansion(FullSourceLoc *StartLoc) const { 114 assert(isValid()); 115 return SrcMgr->isMacroArgExpansion(*this, StartLoc); 116 } 117 118 FullSourceLoc FullSourceLoc::getImmediateMacroCallerLoc() const { 119 assert(isValid()); 120 return FullSourceLoc(SrcMgr->getImmediateMacroCallerLoc(*this), *SrcMgr); 121 } 122 123 std::pair<FullSourceLoc, StringRef> FullSourceLoc::getModuleImportLoc() const { 124 if (!isValid()) 125 return std::make_pair(FullSourceLoc(), StringRef()); 126 127 std::pair<SourceLocation, StringRef> ImportLoc = 128 SrcMgr->getModuleImportLoc(*this); 129 return std::make_pair(FullSourceLoc(ImportLoc.first, *SrcMgr), 130 ImportLoc.second); 131 } 132 133 unsigned FullSourceLoc::getFileOffset() const { 134 assert(isValid()); 135 return SrcMgr->getFileOffset(*this); 136 } 137 138 unsigned FullSourceLoc::getLineNumber(bool *Invalid) const { 139 assert(isValid()); 140 return SrcMgr->getLineNumber(getFileID(), getFileOffset(), Invalid); 141 } 142 143 unsigned FullSourceLoc::getColumnNumber(bool *Invalid) const { 144 assert(isValid()); 145 return SrcMgr->getColumnNumber(getFileID(), getFileOffset(), Invalid); 146 } 147 148 const FileEntry *FullSourceLoc::getFileEntry() const { 149 assert(isValid()); 150 return SrcMgr->getFileEntryForID(getFileID()); 151 } 152 153 unsigned FullSourceLoc::getExpansionLineNumber(bool *Invalid) const { 154 assert(isValid()); 155 return SrcMgr->getExpansionLineNumber(*this, Invalid); 156 } 157 158 unsigned FullSourceLoc::getExpansionColumnNumber(bool *Invalid) const { 159 assert(isValid()); 160 return SrcMgr->getExpansionColumnNumber(*this, Invalid); 161 } 162 163 unsigned FullSourceLoc::getSpellingLineNumber(bool *Invalid) const { 164 assert(isValid()); 165 return SrcMgr->getSpellingLineNumber(*this, Invalid); 166 } 167 168 unsigned FullSourceLoc::getSpellingColumnNumber(bool *Invalid) const { 169 assert(isValid()); 170 return SrcMgr->getSpellingColumnNumber(*this, Invalid); 171 } 172 173 bool FullSourceLoc::isInSystemHeader() const { 174 assert(isValid()); 175 return SrcMgr->isInSystemHeader(*this); 176 } 177 178 bool FullSourceLoc::isBeforeInTranslationUnitThan(SourceLocation Loc) const { 179 assert(isValid()); 180 return SrcMgr->isBeforeInTranslationUnit(*this, Loc); 181 } 182 183 LLVM_DUMP_METHOD void FullSourceLoc::dump() const { 184 SourceLocation::dump(*SrcMgr); 185 } 186 187 const char *FullSourceLoc::getCharacterData(bool *Invalid) const { 188 assert(isValid()); 189 return SrcMgr->getCharacterData(*this, Invalid); 190 } 191 192 StringRef FullSourceLoc::getBufferData(bool *Invalid) const { 193 assert(isValid()); 194 return SrcMgr->getBuffer(SrcMgr->getFileID(*this), Invalid)->getBuffer(); 195 } 196 197 std::pair<FileID, unsigned> FullSourceLoc::getDecomposedLoc() const { 198 return SrcMgr->getDecomposedLoc(*this); 199 } 200