/*
* Copyright 2000-2013 JetBrains s.r.o.
* Copyright 2014-2016 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.project.Project;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.plugins.haxe.HaxeFileType;
import com.intellij.plugins.haxe.lang.psi.*;
import com.intellij.plugins.haxe.util.HaxeResolveUtil;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import com.intellij.psi.PsiManager;
import com.intellij.psi.search.GlobalSearchScope;
import com.intellij.psi.search.PsiElementProcessor;
import com.intellij.psi.util.PsiTreeUtil;
import com.intellij.util.ArrayUtil;
import com.intellij.util.CommonProcessors;
import com.intellij.util.indexing.*;
import com.intellij.util.io.EnumeratorStringDescriptor;
import com.intellij.util.io.KeyDescriptor;
import gnu.trove.THashMap;
import gnu.trove.THashSet;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.util.*;
public class HaxeSymbolIndex extends ScalarIndexExtension<String> {
public static final ID<String, Void> HAXE_SYMBOL_INDEX = ID.create("HaxeSymbolIndex");
private static final int INDEX_VERSION = HaxeIndexUtil.BASE_INDEX_VERSION + 8;
private DataIndexer<String, Void, FileContent> myDataIndexer = new MyDataIndexer();
@NotNull
@Override
public ID<String, Void> getName() {
return HAXE_SYMBOL_INDEX;
}
@Override
public int getVersion() {
return INDEX_VERSION;
}
@NotNull
@Override
public DataIndexer<String, Void, FileContent> getIndexer() {
return myDataIndexer;
}
@NotNull
@Override
public KeyDescriptor<String> getKeyDescriptor() {
return new EnumeratorStringDescriptor();
}
@NotNull
@Override
public FileBasedIndex.InputFilter getInputFilter() {
return HaxeSdkInputFilter.INSTANCE;
}
@Override
public boolean dependsOnFileContent() {
return true;
}
public static String[] getAllSymbols(@NotNull final GlobalSearchScope scope) {
final CommonProcessors.CollectProcessor<String> processor = new CommonProcessors.CollectProcessor<String>();
FileBasedIndex.getInstance().processAllKeys(HAXE_SYMBOL_INDEX, processor, scope, null);
return ArrayUtil.toStringArray(processor.getResults());
}
public static List<HaxeComponentName> getItemsByName(@NotNull final String name,
@NotNull final Project project,
@NotNull final GlobalSearchScope searchScope) {
final Collection<VirtualFile> files =
FileBasedIndex.getInstance().getContainingFiles(HAXE_SYMBOL_INDEX, name, searchScope);
final Set<HaxeComponentName> result = new THashSet<HaxeComponentName>();
for (VirtualFile vFile : files) {
final PsiFile psiFile = PsiManager.getInstance(project).findFile(vFile);
if (psiFile == null || psiFile.getFileType() != HaxeFileType.HAXE_FILE_TYPE) {
continue;
}
processComponents(psiFile, new PsiElementProcessor<HaxeNamedComponent>() {
@Override
public boolean execute(@NotNull HaxeNamedComponent subComponent) {
if (name.equals(subComponent.getName())) {
result.add(subComponent.getComponentName());
}
return true;
}
});
}
return new ArrayList<HaxeComponentName>(result);
}
private static class MyDataIndexer implements DataIndexer<String, Void, FileContent> {
@Override
@NotNull
public Map<String, Void> map(@NotNull final FileContent inputData) {
final PsiFile psiFile = inputData.getPsiFile();
final List<HaxeClass> classes = HaxeResolveUtil.findComponentDeclarations(psiFile);
if (classes.isEmpty()) {
return Collections.emptyMap();
}
final Map<String, Void> result = new THashMap<String, Void>();
for (HaxeClass haxeClass : classes) {
final String className = haxeClass.getName();
if (className == null) {
continue;
}
result.put(className, null);
for (HaxeNamedComponent namedComponent : getNamedComponents(haxeClass)) {
result.put(namedComponent.getName(), null);
}
}
return result;
}
}
private static void processComponents(PsiFile psiFile, PsiElementProcessor<HaxeNamedComponent> processor) {
// top-level components
final List<HaxeClass> classes = HaxeResolveUtil.findComponentDeclarations(psiFile);
for (HaxeClass cls : classes) {
if (!processSubComponent(processor, cls)) {
return;
}
}
}
private static boolean processSubComponent(PsiElementProcessor<HaxeNamedComponent> processor, HaxeComponent component) {
final String componentName = component.getName();
if (componentName == null) {
return true;
}
if (!processor.execute(component)) {
return false;
}
if (component instanceof HaxeClass) {
for (HaxeNamedComponent subComponent : getNamedComponents((HaxeClass)component)) {
if (!processor.execute(subComponent)) {
return false;
}
}
}
return true;
}
private static final Class[] BODY_TYPES =
new Class[]{HaxeClassBody.class, HaxeEnumBody.class, HaxeExternClassDeclarationBody.class, HaxeAnonymousTypeBody.class};
private static final Class[] MEMBER_TYPES =
new Class[]{HaxeEnumValueDeclaration.class, HaxeExternFunctionDeclaration.class, HaxeFunctionDeclarationWithAttributes.class,
HaxeVarDeclarationPart.class};
@NotNull
private static List<HaxeNamedComponent> getNamedComponents(@Nullable final HaxeClass cls) {
final PsiElement body = PsiTreeUtil.getChildOfAnyType(cls, BODY_TYPES);
final List<HaxeNamedComponent> components = new ArrayList<HaxeNamedComponent>();
if (body != null) {
final Collection<HaxeNamedComponent> members = PsiTreeUtil.findChildrenOfAnyType(body, MEMBER_TYPES);
for (HaxeNamedComponent member : members) {
if (member instanceof HaxeMethod && ((HaxeMethod)member).isConstructor()) {
continue;
}
components.add(member);
}
}
return components;
}
}