/*
* Copyright 2003-2011 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jetbrains.mps.smodel.runtime.base;
import jetbrains.mps.scope.Scope;
import jetbrains.mps.smodel.IOperationContext;
import org.jetbrains.mps.openapi.model.SNodeReference;
import jetbrains.mps.smodel.runtime.ReferenceConstraintsContext;
import jetbrains.mps.smodel.runtime.ReferencePresentationContext;
import jetbrains.mps.smodel.runtime.ReferenceScopeProvider;
import jetbrains.mps.smodel.search.EmptySearchScope;
import jetbrains.mps.smodel.search.ISearchScope;
import jetbrains.mps.smodel.search.ISearchScope.Adapter;
import jetbrains.mps.smodel.search.SimpleSearchScope;
import jetbrains.mps.smodel.search.UndefinedSearchScope;
import jetbrains.mps.util.CollectionUtil;
import jetbrains.mps.util.IterableUtil;
public class BaseReferenceScopeProvider implements ReferenceScopeProvider {
public Object createSearchScopeOrListOfNodes(final IOperationContext operationContext, ReferenceConstraintsContext _context) {
return new UndefinedSearchScope();
}
@Override
public ISearchScope createSearchScope(IOperationContext operationContext, ReferenceConstraintsContext _context) {
Object searchScopeOrListOfNodes = this.createSearchScopeOrListOfNodes(operationContext, _context);
if (searchScopeOrListOfNodes == null) {
return new EmptySearchScope();
}
if (searchScopeOrListOfNodes instanceof ISearchScope) {
return (ISearchScope) searchScopeOrListOfNodes;
}
/* if (searchScopeOrListOfNodes instanceof List) {
Iterable iterable = CollectionUtil.withoutNulls((Iterable) searchScopeOrListOfNodes);
return new SimpleSearchScope(IterableUtil.asList(iterable));
}*/
if (searchScopeOrListOfNodes instanceof Iterable) {
Iterable iterable = CollectionUtil.withoutNulls((Iterable) searchScopeOrListOfNodes);
return new SimpleSearchScope(IterableUtil.asList(iterable));
}
throw new RuntimeException("unexpected type in search-scope provider " + searchScopeOrListOfNodes.getClass());
}
@Override
public Scope createScope(IOperationContext operationContext, ReferenceConstraintsContext _context) {
ISearchScope searchScope = createSearchScope(operationContext, _context);
if(searchScope instanceof UndefinedSearchScope || searchScope == null) {
return null;
}
return new Adapter(searchScope);
}
@Override
public boolean hasPresentation() {
return false;
}
@Override
public String getPresentation(IOperationContext operationContext, ReferencePresentationContext _context) {
throw new UnsupportedOperationException();
}
@Override
public SNodeReference getSearchScopeValidatorNode() {
return null;
}
}