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#include "DataFormats/Common/interface/HandleBase.h"
#include "DataFormats/Provenance/interface/Provenance.h"
#include "FWCore/Utilities/interface/Exception.h"
#include "FWCore/Utilities/interface/Likely.h"
namespace {
void throwInvalidHandleDeref() {
throw cms::Exception("DereferenceUnsetHandle")
<< "An attempt was made to dereference an edm::Handle which was never set.";
}
void throwInvalidHandleProv() {
throw cms::Exception("ProvenanceFromUnsetHandle")
<< "An attempt was made to get the ProductId from an edm::Handle which was never set.";
}
} // namespace
namespace edm {
void const* HandleBase::productStorage() const {
if UNLIKELY (not product_) {
if LIKELY (static_cast<bool>(whyFailedFactory_)) {
whyFailedFactory_->make()->raise();
} else {
throwInvalidHandleDeref();
}
}
return product_;
}
ProductID HandleBase::id() const {
if UNLIKELY (not prov_) {
if LIKELY (static_cast<bool>(whyFailedFactory_)) {
whyFailedFactory_->make()->raise();
} else {
throwInvalidHandleProv();
}
}
return prov_->productID();
}
} // namespace edm
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