C++ (Cpp) Decl::getNextDeclInContext Examples

Example #1

File: DeclBase.cpp Project: mnowakgit/root

void DeclContext::localUncachedLookup(DeclarationName Name,
                                      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.begin(), LookupResults.end());
    return;
  }

  // If we have a lookup table, check there first. Maybe we'll get lucky.
  if (Name && !LookupPtr.getInt()) {
    if (StoredDeclsMap *Map = LookupPtr.getPointer()) {
      StoredDeclsMap::iterator Pos = Map->find(Name);
      if (Pos != Map->end()) {
        Results.insert(Results.end(),
                       Pos->second.getLookupResult().begin(),
                       Pos->second.getLookupResult().end());
        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);
  }
}

Example #2

void Decl::Destroy(ASTContext &C) {
  // Free attributes for this decl.
  if (HasAttrs) {
    C.getDeclAttrs(this)->Destroy(C);
    invalidateAttrs();
    HasAttrs = false;
  }

#if 0
  // FIXME: Once ownership is fully understood, we can enable this code
  if (DeclContext *DC = dyn_cast<DeclContext>(this))
    DC->decls_begin()->Destroy(C);

  // Observe the unrolled recursion.  By setting N->NextDeclInContext = 0x0
  // within the loop, only the Destroy method for the first Decl
  // will deallocate all of the Decls in a chain.

  Decl* N = getNextDeclInContext();

  while (N) {
    Decl* Tmp = N->getNextDeclInContext();
    N->NextDeclInContext = 0;
    N->Destroy(C);
    N = Tmp;
  }

  this->~Decl();
  C.Deallocate((void *)this);
#endif
}

Example #3

File: DeclBase.cpp Project: My-Source/root

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);
  }
}