static PathDiagnosticLocation
getLocationForCaller(const StackFrameContext *SFC,
const LocationContext *CallerCtx,
const SourceManager &SM) {
const CFGBlock &Block = *SFC->getCallSiteBlock();
CFGElement Source = Block[SFC->getIndex()];
switch (Source.getKind()) {
case CFGElement::Statement:
return PathDiagnosticLocation(Source.castAs<CFGStmt>().getStmt(),
SM, CallerCtx);
case CFGElement::Initializer: {
const CFGInitializer &Init = Source.castAs<CFGInitializer>();
return PathDiagnosticLocation(Init.getInitializer()->getInit(),
SM, CallerCtx);
}
case CFGElement::AutomaticObjectDtor: {
const CFGAutomaticObjDtor &Dtor = Source.castAs<CFGAutomaticObjDtor>();
return PathDiagnosticLocation::createEnd(Dtor.getTriggerStmt(),
SM, CallerCtx);
}
case CFGElement::BaseDtor:
case CFGElement::MemberDtor: {
const AnalysisDeclContext *CallerInfo = CallerCtx->getAnalysisDeclContext();
if (const Stmt *CallerBody = CallerInfo->getBody())
return PathDiagnosticLocation::createEnd(CallerBody, SM, CallerCtx);
return PathDiagnosticLocation::create(CallerInfo->getDecl(), SM);
}
case CFGElement::TemporaryDtor:
llvm_unreachable("not yet implemented!");
}
llvm_unreachable("Unknown CFGElement kind");
}
static PathDiagnosticLocation
getLocationForCaller(const StackFrameContext *SFC,
const LocationContext *CallerCtx,
const SourceManager &SM) {
const CFGBlock &Block = *SFC->getCallSiteBlock();
CFGElement Source = Block[SFC->getIndex()];
switch (Source.getKind()) {
case CFGElement::Statement:
case CFGElement::Constructor:
case CFGElement::CXXRecordTypedCall:
return PathDiagnosticLocation(Source.castAs<CFGStmt>().getStmt(),
SM, CallerCtx);
case CFGElement::Initializer: {
const CFGInitializer &Init = Source.castAs<CFGInitializer>();
return PathDiagnosticLocation(Init.getInitializer()->getInit(),
SM, CallerCtx);
}
case CFGElement::AutomaticObjectDtor: {
const CFGAutomaticObjDtor &Dtor = Source.castAs<CFGAutomaticObjDtor>();
return PathDiagnosticLocation::createEnd(Dtor.getTriggerStmt(),
SM, CallerCtx);
}
case CFGElement::DeleteDtor: {
const CFGDeleteDtor &Dtor = Source.castAs<CFGDeleteDtor>();
return PathDiagnosticLocation(Dtor.getDeleteExpr(), SM, CallerCtx);
}
case CFGElement::BaseDtor:
case CFGElement::MemberDtor: {
const AnalysisDeclContext *CallerInfo = CallerCtx->getAnalysisDeclContext();
if (const Stmt *CallerBody = CallerInfo->getBody())
return PathDiagnosticLocation::createEnd(CallerBody, SM, CallerCtx);
return PathDiagnosticLocation::create(CallerInfo->getDecl(), SM);
}
case CFGElement::NewAllocator: {
const CFGNewAllocator &Alloc = Source.castAs<CFGNewAllocator>();
return PathDiagnosticLocation(Alloc.getAllocatorExpr(), SM, CallerCtx);
}
case CFGElement::TemporaryDtor: {
// Temporary destructors are for temporaries. They die immediately at around
// the location of CXXBindTemporaryExpr. If they are lifetime-extended,
// they'd be dealt with via an AutomaticObjectDtor instead.
const auto &Dtor = Source.castAs<CFGTemporaryDtor>();
return PathDiagnosticLocation::createEnd(Dtor.getBindTemporaryExpr(), SM,
CallerCtx);
}
case CFGElement::ScopeBegin:
case CFGElement::ScopeEnd:
llvm_unreachable("not yet implemented!");
case CFGElement::LifetimeEnds:
case CFGElement::LoopExit:
llvm_unreachable("CFGElement kind should not be on callsite!");
}
llvm_unreachable("Unknown CFGElement kind");
}
/// Returns true if the initializer for \Elem can be a direct
/// constructor.
static bool canHaveDirectConstructor(CFGElement Elem){
// DeclStmts and CXXCtorInitializers for fields can be directly constructed.
if (Optional<CFGStmt> StmtElem = Elem.getAs<CFGStmt>()) {
if (isa<DeclStmt>(StmtElem->getStmt())) {
return true;
}
}
if (Elem.getKind() == CFGElement::Initializer) {
return true;
}
return false;
}