/*
* Copyright 2000-2015 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 com.jetbrains.lang.dart.ide.hierarchy.type;
import com.google.common.collect.Lists;
import com.google.common.collect.Sets;
import com.intellij.ide.hierarchy.HierarchyNodeDescriptor;
import com.intellij.ide.hierarchy.HierarchyTreeStructure;
import com.intellij.openapi.project.Project;
import com.intellij.util.ArrayUtil;
import com.jetbrains.lang.dart.psi.DartClass;
import com.jetbrains.lang.dart.util.DartResolveUtil;
import org.dartlang.analysis.server.protocol.TypeHierarchyItem;
import org.jetbrains.annotations.NotNull;
import java.util.List;
import java.util.Set;
import static com.jetbrains.lang.dart.ide.hierarchy.DartHierarchyUtil.findDartClass;
import static com.jetbrains.lang.dart.ide.hierarchy.DartHierarchyUtil.getTypeHierarchyItems;
public final class DartServerSupertypesHierarchyTreeStructure extends HierarchyTreeStructure {
public DartServerSupertypesHierarchyTreeStructure(final Project project, final DartClass dartClass) {
super(project, new DartTypeHierarchyNodeDescriptor(project, null, dartClass, true));
}
@NotNull
protected final Object[] buildChildren(@NotNull final HierarchyNodeDescriptor descriptor) {
final DartClass dartClass = ((DartTypeHierarchyNodeDescriptor)descriptor).getDartClass();
if (dartClass == null || DartResolveUtil.OBJECT.equals(dartClass.getName())) {
return ArrayUtil.EMPTY_OBJECT_ARRAY;
}
final List<TypeHierarchyItem> items = getTypeHierarchyItems(dartClass);
if (items.isEmpty()) return ArrayUtil.EMPTY_OBJECT_ARRAY;
addSuperClassHierarchy(Sets.newHashSet(), myProject, items, items.get(0), descriptor);
return descriptor.getCachedChildren();
}
private static void addSuperClassHierarchy(@NotNull final Set<TypeHierarchyItem> stackItems,
@NotNull final Project project,
@NotNull final List<TypeHierarchyItem> items,
@NotNull final TypeHierarchyItem item,
@NotNull final HierarchyNodeDescriptor descriptor) {
if (!stackItems.add(item)) {
descriptor.setCachedChildren(ArrayUtil.EMPTY_OBJECT_ARRAY);
return;
}
List<HierarchyNodeDescriptor> superDescriptors = Lists.newArrayList();
try {
// superclass
final Integer superIndex = item.getSuperclass();
if (superIndex != null) {
addSuperClassNode(stackItems, project, items, descriptor, superDescriptors, superIndex);
}
// mixins
for (int index : item.getMixins()) {
addSuperClassNode(stackItems, project, items, descriptor, superDescriptors, index);
}
// interfaces
for (int index : item.getInterfaces()) {
addSuperClassNode(stackItems, project, items, descriptor, superDescriptors, index);
}
}
finally {
stackItems.remove(item);
}
descriptor.setCachedChildren(superDescriptors.toArray(new HierarchyNodeDescriptor[superDescriptors.size()]));
}
private static void addSuperClassNode(@NotNull final Set<TypeHierarchyItem> stackItems,
@NotNull final Project project,
@NotNull final List<TypeHierarchyItem> items,
@NotNull final HierarchyNodeDescriptor parentNode,
@NotNull final List<HierarchyNodeDescriptor> descriptors,
final int index) {
final TypeHierarchyItem superItem = items.get(index);
if (DartResolveUtil.OBJECT.equals(superItem.getClassElement().getName())) {
return;
}
final DartClass superClass = findDartClass(project, superItem);
final HierarchyNodeDescriptor superDescriptor = new DartTypeHierarchyNodeDescriptor(project, parentNode, superClass, false);
descriptors.add(superDescriptor);
addSuperClassHierarchy(stackItems, project, items, superItem, superDescriptor);
}
}