package bluej.parser.entity;

import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.stream.Collectors;

import bluej.debugger.gentype.JavaType;
import bluej.debugger.gentype.Reflective;




| Represents an unresolved sequence of names from an import statement, which should
| when resolved refer to a class or (for wildcard imports) a package.
|
| @author Davin McCall
|
public class ImportedEntity
extends JavaEntity{    
   private EntityResolver resolver;
   
   private List<String> names;
   
   private Reflective querySource;
    
   
   


| Create an ImportEntity with the given attributes.
|
public ImportedEntity(EntityResolver resolver, List<String> names,
           
   Reflective querySource)
   {        
      this.resolver = resolver;
       
      this.names = names;
       
      this.querySource = querySource;     
      }
    
   
   @Override
   
   public String getName()
   {
      return names.stream().collect(Collectors.joining("."));     
      }

   
   @Override
   
   public JavaEntity getSubentity(String name, Reflective accessSource)
   {        
      List<String> newNames = new LinkedList<String>();
      newNames.addAll(names);
      newNames.add(name);
       
      return new ImportedEntity(resolver, newNames, querySource);     
      }

   
   @Override
   
   public JavaType getType()
   {        
      return null;     
      }
    
   
   @Override
   
   public JavaEntity setTypeArgs(List<TypeArgumentEntity> tparams)
   {        
      return null;     
      }

   
   @Override
   
   public ValueEntity resolveAsValue()
   {        
      return null;     
      }
    
   
   @Override
   
   public TypeEntity resolveAsType()
   {
      PackageOrClass poc = resolveAsPackageOrClass();
      if (poc != null) {
         return poc.resolveAsType();         
         }
        
       
      return null;     
      }
    
   
   @Override
   
   public PackageOrClass resolveAsPackageOrClass()
   {
      Iterator<String> i = names.iterator();
      if (! i.hasNext()) {            
         return null;         
         }
        
      String fqName = i.next();
       
      PackageOrClass poc = new PackageEntity(fqName, resolver);
        
      while (i.hasNext()){
         poc = poc.getPackageOrClassMember(i.next());
         if (poc == null) {                
            return null;             
            }         
         }
        
       
      return poc;     
      } 
   }