bool FindSymbol(ASTContext &Context, const SourceManager &SourceMgr,
unsigned SymbolOffset, const std::string &QualifiedName) {
DiagnosticsEngine &Engine = Context.getDiagnostics();
const SourceLocation Point =
SourceMgr.getLocForStartOfFile(SourceMgr.getMainFileID())
.getLocWithOffset(SymbolOffset);
if (!Point.isValid()) {
ErrorOccurred = true;
unsigned InvalidOffset = Engine.getCustomDiagID(
DiagnosticsEngine::Error,
"SourceLocation in file %0 at offset %1 is invalid");
Engine.Report(Point, InvalidOffset) << SourceMgr.getFilename(Point)
<< SymbolOffset;
return false;
}
const NamedDecl *FoundDecl = QualifiedName.empty()
? getNamedDeclAt(Context, Point)
: getNamedDeclFor(Context, QualifiedName);
if (FoundDecl == nullptr) {
if (QualifiedName.empty()) {
FullSourceLoc FullLoc(Point, SourceMgr);
unsigned CouldNotFindSymbolAt = Engine.getCustomDiagID(
DiagnosticsEngine::Error,
"clang-rename could not find symbol (offset %0)");
Engine.Report(Point, CouldNotFindSymbolAt) << SymbolOffset;
ErrorOccurred = true;
return false;
}
unsigned CouldNotFindSymbolNamed = Engine.getCustomDiagID(
DiagnosticsEngine::Error, "clang-rename could not find symbol %0");
Engine.Report(CouldNotFindSymbolNamed) << QualifiedName;
ErrorOccurred = true;
return false;
}
// If FoundDecl is a constructor or destructor, we want to instead take
// the Decl of the corresponding class.
if (const auto *CtorDecl = dyn_cast<CXXConstructorDecl>(FoundDecl))
FoundDecl = CtorDecl->getParent();
else if (const auto *DtorDecl = dyn_cast<CXXDestructorDecl>(FoundDecl))
FoundDecl = DtorDecl->getParent();
SpellingNames.push_back(FoundDecl->getNameAsString());
AdditionalUSRFinder Finder(FoundDecl, Context);
USRList.push_back(Finder.Find());
return true;
}
void HandleTranslationUnit(ASTContext &Context) override {
const auto &SourceMgr = Context.getSourceManager();
// The file we look for the USR in will always be the main source file.
const auto Point = SourceMgr.getLocForStartOfFile(
SourceMgr.getMainFileID()).getLocWithOffset(SymbolOffset);
if (!Point.isValid())
return;
const NamedDecl *FoundDecl = nullptr;
if (OldName.empty()) {
FoundDecl = getNamedDeclAt(Context, Point);
} else {
FoundDecl = getNamedDeclFor(Context, OldName);
}
if (FoundDecl == nullptr) {
FullSourceLoc FullLoc(Point, SourceMgr);
errs() << "clang-rename: could not find symbol at "
<< SourceMgr.getFilename(Point) << ":"
<< FullLoc.getSpellingLineNumber() << ":"
<< FullLoc.getSpellingColumnNumber() << " (offset " << SymbolOffset
<< ").\n";
return;
}
// If the decl is a constructor or destructor, we want to instead take the
// decl of the parent record.
if (const auto *CtorDecl = dyn_cast<CXXConstructorDecl>(FoundDecl))
FoundDecl = CtorDecl->getParent();
else if (const auto *DtorDecl = dyn_cast<CXXDestructorDecl>(FoundDecl))
FoundDecl = DtorDecl->getParent();
// If the decl is in any way relatedpp to a class, we want to make sure we
// search for the constructor and destructor as well as everything else.
if (const auto *Record = dyn_cast<CXXRecordDecl>(FoundDecl))
*USRs = getAllConstructorUSRs(Record);
USRs->push_back(getUSRForDecl(FoundDecl));
*SpellingName = FoundDecl->getNameAsString();
}
void HandleTranslationUnit(ASTContext &Context) override {
const SourceManager &SourceMgr = Context.getSourceManager();
// The file we look for the USR in will always be the main source file.
const SourceLocation Point =
SourceMgr.getLocForStartOfFile(SourceMgr.getMainFileID())
.getLocWithOffset(SymbolOffset);
if (!Point.isValid())
return;
const NamedDecl *FoundDecl = nullptr;
if (OldName.empty()) {
FoundDecl = getNamedDeclAt(Context, Point);
} else {
FoundDecl = getNamedDeclFor(Context, OldName);
}
if (FoundDecl == nullptr) {
FullSourceLoc FullLoc(Point, SourceMgr);
errs() << "clang-rename: could not find symbol at "
<< SourceMgr.getFilename(Point) << ":"
<< FullLoc.getSpellingLineNumber() << ":"
<< FullLoc.getSpellingColumnNumber() << " (offset " << SymbolOffset
<< ").\n";
return;
}
// If FoundDecl is a constructor or destructor, we want to instead take the
// Decl of the corresponding class.
if (const auto *CtorDecl = dyn_cast<CXXConstructorDecl>(FoundDecl)) {
FoundDecl = CtorDecl->getParent();
} else if (const auto *DtorDecl = dyn_cast<CXXDestructorDecl>(FoundDecl)) {
FoundDecl = DtorDecl->getParent();
}
*SpellingName = FoundDecl->getNameAsString();
AdditionalUSRFinder Finder(FoundDecl, Context, USRs);
Finder.Find();
}