DeclContext::lookup_result
DeclContext::lookup(DeclarationName Name) {
DeclContext *PrimaryContext = getPrimaryContext();
if (PrimaryContext != this)
return PrimaryContext->lookup(Name);
if (hasExternalVisibleStorage()) {
// Check to see if we've already cached the lookup results.
if (LookupPtr) {
StoredDeclsMap::iterator I = LookupPtr->find(Name);
if (I != LookupPtr->end())
return I->second.getLookupResult(getParentASTContext());
}
ExternalASTSource *Source = getParentASTContext().getExternalSource();
return Source->FindExternalVisibleDeclsByName(this, Name);
}
/// If there is no lookup data structure, build one now by walking
/// all of the linked DeclContexts (in declaration order!) and
/// inserting their values.
if (!LookupPtr) {
buildLookup(this);
if (!LookupPtr)
return lookup_result(lookup_iterator(0), lookup_iterator(0));
}
StoredDeclsMap::iterator Pos = LookupPtr->find(Name);
if (Pos == LookupPtr->end())
return lookup_result(lookup_iterator(0), lookup_iterator(0));
return Pos->second.getLookupResult(getParentASTContext());
}
/// \brief We have just acquired external visible storage, and we already have
/// built a lookup map. For every name in the map, pull in the new names from
/// the external storage.
void DeclContext::reconcileExternalVisibleStorage() {
assert(NeedToReconcileExternalVisibleStorage && LookupPtr.getPointer());
NeedToReconcileExternalVisibleStorage = false;
StoredDeclsMap &Map = *LookupPtr.getPointer();
ExternalASTSource *Source = getParentASTContext().getExternalSource();
for (StoredDeclsMap::iterator I = Map.begin(); I != Map.end(); ++I) {
I->second.removeExternalDecls();
Source->FindExternalVisibleDeclsByName(this, I->first);
}
}
DeclContext::lookup_result
DeclContext::lookup(DeclarationName Name) {
assert(DeclKind != Decl::LinkageSpec &&
"Should not perform lookups into linkage specs!");
DeclContext *PrimaryContext = getPrimaryContext();
if (PrimaryContext != this)
return PrimaryContext->lookup(Name);
if (hasExternalVisibleStorage()) {
StoredDeclsMap *Map = LookupPtr.getPointer();
if (LookupPtr.getInt())
Map = buildLookup();
else if (NeedToReconcileExternalVisibleStorage)
reconcileExternalVisibleStorage();
if (!Map)
Map = CreateStoredDeclsMap(getParentASTContext());
// If a PCH/module has a result for this name, and we have a local
// declaration, we will have imported the PCH/module result when adding the
// local declaration or when reconciling the module.
std::pair<StoredDeclsMap::iterator, bool> R =
Map->insert(std::make_pair(Name, StoredDeclsList()));
if (!R.second)
return R.first->second.getLookupResult();
ExternalASTSource *Source = getParentASTContext().getExternalSource();
if (Source->FindExternalVisibleDeclsByName(this, Name)) {
if (StoredDeclsMap *Map = LookupPtr.getPointer()) {
StoredDeclsMap::iterator I = Map->find(Name);
if (I != Map->end())
return I->second.getLookupResult();
}
}
return lookup_result(lookup_iterator(0), lookup_iterator(0));
}
StoredDeclsMap *Map = LookupPtr.getPointer();
if (LookupPtr.getInt())
Map = buildLookup();
if (!Map)
return lookup_result(lookup_iterator(0), lookup_iterator(0));
StoredDeclsMap::iterator I = Map->find(Name);
if (I == Map->end())
return lookup_result(lookup_iterator(0), lookup_iterator(0));
return I->second.getLookupResult();
}
DeclContext::lookup_result
DeclContext::lookup(DeclarationName Name) {
assert(DeclKind != Decl::LinkageSpec &&
"Should not perform lookups into linkage specs!");
DeclContext *PrimaryContext = getPrimaryContext();
if (PrimaryContext != this)
return PrimaryContext->lookup(Name);
if (hasExternalVisibleStorage()) {
// If a PCH has a result for this name, and we have a local declaration, we
// will have imported the PCH result when adding the local declaration.
// FIXME: For modules, we could have had more declarations added by module
// imoprts since we saw the declaration of the local name.
if (StoredDeclsMap *Map = LookupPtr.getPointer()) {
StoredDeclsMap::iterator I = Map->find(Name);
if (I != Map->end())
return I->second.getLookupResult();
}
ExternalASTSource *Source = getParentASTContext().getExternalSource();
return Source->FindExternalVisibleDeclsByName(this, Name);
}
StoredDeclsMap *Map = LookupPtr.getPointer();
if (LookupPtr.getInt())
Map = buildLookup();
if (!Map)
return lookup_result(lookup_iterator(0), lookup_iterator(0));
StoredDeclsMap::iterator I = Map->find(Name);
if (I == Map->end())
return lookup_result(lookup_iterator(0), lookup_iterator(0));
return I->second.getLookupResult();
}
DeclContext::lookup_result
DeclContext::lookup(IdentifierInfo &Name) {
DeclContext *PrimaryContext = getPrimaryContext();
if (PrimaryContext != this) // FIXME: not needed?
return PrimaryContext->lookup(Name);
#if 0 // FIXME: modules. eventually. resync this part from clang.
if (hasExternalVisibleStorage()) {
// If a PCH has a result for this name, and we have a local declaration, we
// will have imported the PCH result when adding the local declaration.
// FIXME: For modules, we could have had more declarations added by module
// imoprts since we saw the declaration of the local name.
if (StoredDeclsMap *Map = LookupPtr.getPointer()) {
StoredDeclsMap::iterator I = Map->find(&Name);
if (I != Map->end())
return I->second.getLookupResult();
}
ExternalASTSource *Source = getParentASTContext().getExternalSource();
return Source->FindExternalVisibleDeclsByName(this, Name);
}
#endif
StoredDeclsMap *Map = LookupPtr.getPointer();
if (LookupPtr.getInt())
Map = buildLookup();
if (!Map)
return lookup_result(lookup_iterator(0), lookup_iterator(0));
StoredDeclsMap::iterator I = Map->find(&Name);
if (I == Map->end())
return lookup_result(lookup_iterator(0), lookup_iterator(0));
return I->second.getLookupResult();
}
DeclContext::lookup_result
DeclContext::lookup(DeclarationName Name) {
assert(DeclKind != Decl::LinkageSpec &&
"Should not perform lookups into linkage specs!");
DeclContext *PrimaryContext = getPrimaryContext();
if (PrimaryContext != this)
return PrimaryContext->lookup(Name);
#if AXEL_LOOKUP_CHANGES
StoredDeclsMap *Map = LookupPtr.getPointer();
if (LookupPtr.getInt())
Map = buildLookup();
#endif
if (hasExternalVisibleStorage()) {
// If a PCH has a result for this name, and we have a local declaration, we
// will have imported the PCH result when adding the local declaration.
// FIXME: For modules, we could have had more declarations added by module
// imoprts since we saw the declaration of the local name.
#if AXEL_LOOKUP_CHANGES
if (Map) {
#else
if (StoredDeclsMap *Map = LookupPtr.getPointer()) {
#endif
StoredDeclsMap::iterator I = Map->find(Name);
if (I != Map->end())
return I->second.getLookupResult();
}
ExternalASTSource *Source = getParentASTContext().getExternalSource();
return Source->FindExternalVisibleDeclsByName(this, Name);
}
#ifndef AXEL_LOOKUP_CHANGES
StoredDeclsMap *Map = LookupPtr.getPointer();
if (LookupPtr.getInt())
Map = buildLookup();
#endif
if (!Map)
return lookup_result(lookup_iterator(0), lookup_iterator(0));
StoredDeclsMap::iterator I = Map->find(Name);
if (I == Map->end())
return lookup_result(lookup_iterator(0), lookup_iterator(0));
return I->second.getLookupResult();
}
void DeclContext::localUncachedLookup(DeclarationName Name,
llvm::SmallVectorImpl<NamedDecl *> &Results) {
Results.clear();
// If there's no external storage, just perform a normal lookup and copy
// the results.
if (!hasExternalVisibleStorage() && !hasExternalLexicalStorage() && Name) {
lookup_result LookupResults = lookup(Name);
Results.insert(Results.end(), LookupResults.first, LookupResults.second);
return;
}
// If we have a lookup table, check there first. Maybe we'll get lucky.
if (Name) {
if (StoredDeclsMap *Map = LookupPtr.getPointer()) {
StoredDeclsMap::iterator Pos = Map->find(Name);
if (Pos != Map->end()) {
Results.insert(Results.end(),
Pos->second.getLookupResult().first,
Pos->second.getLookupResult().second);
return;
}
}
}
// Slow case: grovel through the declarations in our chain looking for
// matches.
for (Decl *D = FirstDecl; D; D = D->getNextDeclInContext()) {
if (NamedDecl *ND = dyn_cast<NamedDecl>(D))
if (ND->getDeclName() == Name)
Results.push_back(ND);
}
}
