/*
* Copyright 2000-2013 JetBrains s.r.o.
* Copyright 2014-2014 AS3Boyan
* Copyright 2014-2014 Elias Ku
*
* 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.intellij.plugins.haxe.ide.index;
import com.intellij.openapi.util.Condition;
import com.intellij.plugins.haxe.HaxeComponentType;
import com.intellij.plugins.haxe.lang.psi.HaxeAnonymousType;
import com.intellij.plugins.haxe.lang.psi.HaxeType;
import com.intellij.plugins.haxe.lang.psi.HaxeTypeExtends;
import com.intellij.plugins.haxe.lang.psi.HaxeTypeOrAnonymous;
import com.intellij.plugins.haxe.lang.psi.impl.AbstractHaxeTypeDefImpl;
import com.intellij.plugins.haxe.util.HaxeResolveUtil;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import com.intellij.util.Function;
import com.intellij.util.containers.ContainerUtil;
import com.intellij.util.indexing.*;
import com.intellij.util.io.DataExternalizer;
import com.intellij.util.io.EnumeratorStringDescriptor;
import com.intellij.util.io.KeyDescriptor;
import gnu.trove.THashMap;
import org.jetbrains.annotations.NotNull;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
/**
* @author: Fedor.Korotkov
*/
public class HaxeTypeDefInheritanceIndex extends FileBasedIndexExtension<String, List<HaxeClassInfo>> {
public static final ID<String, List<HaxeClassInfo>> HAXE_TYPEDEF_INHERITANCE_INDEX = ID.create("HaxeTypeDefInheritanceIndex");
private static final int INDEX_VERSION = HaxeIndexUtil.BASE_INDEX_VERSION + 2;
private final DataIndexer<String, List<HaxeClassInfo>, FileContent> myIndexer = new MyDataIndexer();
private final DataExternalizer<List<HaxeClassInfo>> myExternalizer = new HaxeClassInfoListExternalizer();
@NotNull
@Override
public ID<String, List<HaxeClassInfo>> getName() {
return HAXE_TYPEDEF_INHERITANCE_INDEX;
}
@Override
public int getVersion() {
return INDEX_VERSION;
}
@Override
public boolean dependsOnFileContent() {
return true;
}
@Override
public KeyDescriptor<String> getKeyDescriptor() {
return new EnumeratorStringDescriptor();
}
@Override
public DataExternalizer<List<HaxeClassInfo>> getValueExternalizer() {
return myExternalizer;
}
@Override
public FileBasedIndex.InputFilter getInputFilter() {
return HaxeSdkInputFilter.INSTANCE;
}
@NotNull
@Override
public DataIndexer<String, List<HaxeClassInfo>, FileContent> getIndexer() {
return myIndexer;
}
private static class MyDataIndexer implements DataIndexer<String, List<HaxeClassInfo>, FileContent> {
@Override
@NotNull
public Map<String, List<HaxeClassInfo>> map(final FileContent inputData) {
final PsiFile psiFile = inputData.getPsiFile();
final PsiElement[] fileChildren = psiFile.getChildren();
final List<AbstractHaxeTypeDefImpl> classes = ContainerUtil.map(ContainerUtil.filter(fileChildren, new Condition<PsiElement>() {
@Override
public boolean value(PsiElement element) {
return element instanceof AbstractHaxeTypeDefImpl;
}
}), new Function<PsiElement, AbstractHaxeTypeDefImpl>() {
@Override
public AbstractHaxeTypeDefImpl fun(PsiElement element) {
return (AbstractHaxeTypeDefImpl)element;
}
});
if (classes.isEmpty()) {
return Collections.emptyMap();
}
final Map<String, List<HaxeClassInfo>> result = new THashMap<String, List<HaxeClassInfo>>(classes.size());
final Map<String, String> qNameCache = new THashMap<String, String>();
for (AbstractHaxeTypeDefImpl haxeTypeDef : classes) {
final HaxeClassInfo value = new HaxeClassInfo(haxeTypeDef.getQualifiedName(), HaxeComponentType.typeOf(haxeTypeDef));
final HaxeTypeOrAnonymous haxeTypeOrAnonymous = haxeTypeDef.getTypeOrAnonymous();
final HaxeType type = haxeTypeOrAnonymous == null ? null : haxeTypeOrAnonymous.getType();
final HaxeAnonymousType anonymousType = haxeTypeOrAnonymous == null ? null : haxeTypeOrAnonymous.getAnonymousType();
if (anonymousType != null) {
final HaxeTypeExtends typeExtends = anonymousType.getAnonymousTypeBody().getTypeExtends();
if (typeExtends != null) {
final String classNameCandidate = typeExtends.getType().getText();
final String key = classNameCandidate.indexOf('.') != -1 ?
classNameCandidate :
getQNameAndCache(qNameCache, fileChildren, classNameCandidate);
put(result, key, value);
}
}
else if (type != null) {
final String classNameCandidate = type.getText();
final String qName = classNameCandidate.indexOf('.') != -1 ?
classNameCandidate :
getQNameAndCache(qNameCache, fileChildren, classNameCandidate);
put(result, qName, value);
}
}
return result;
}
private static String getQNameAndCache(Map<String, String> qNameCache, PsiElement[] fileChildren, String classNameCandidate) {
String result = qNameCache.get(classNameCandidate);
if (result == null) {
result = HaxeResolveUtil.getQName(fileChildren, classNameCandidate, true);
qNameCache.put(classNameCandidate, result);
}
return result;
}
private static void put(Map<String, List<HaxeClassInfo>> map, String key, HaxeClassInfo value) {
List<HaxeClassInfo> infos = map.get(key);
if (infos == null) {
infos = new ArrayList<HaxeClassInfo>();
map.put(key, infos);
}
infos.add(value);
}
}
}