| /* |
| * Copyright 2000-2013 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.python.psi.resolve; |
| |
| import com.google.common.collect.Sets; |
| import com.intellij.openapi.module.Module; |
| import com.intellij.openapi.module.ModuleUtil; |
| import com.intellij.openapi.projectRoots.Sdk; |
| import com.intellij.openapi.roots.*; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiFile; |
| import com.intellij.util.Processor; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.util.Collections; |
| import java.util.LinkedHashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| /** |
| * @author yole |
| */ |
| public class RootVisitorHost { |
| public static void visitRoots(@NotNull final PsiElement elt, @NotNull final RootVisitor visitor) { |
| // real search |
| final Module module = ModuleUtil.findModuleForPsiElement(elt); |
| if (module != null) { |
| visitRoots(module, false, visitor); |
| } |
| else { |
| final PsiFile containingFile = elt.getContainingFile(); |
| if (containingFile != null) { |
| visitSdkRoots(containingFile, visitor); |
| } |
| } |
| } |
| |
| public static void visitRoots(@NotNull Module module, final boolean skipSdk, final RootVisitor visitor) { |
| OrderEnumerator enumerator = OrderEnumerator.orderEntries(module).recursively(); |
| if (skipSdk) { |
| enumerator = enumerator.withoutSdk(); |
| } |
| enumerator.forEach(new Processor<OrderEntry>() { |
| @Override |
| public boolean process(OrderEntry orderEntry) { |
| if (orderEntry instanceof ModuleSourceOrderEntry) { |
| return visitModuleContentEntries(((ModuleSourceOrderEntry)orderEntry).getRootModel(), visitor); |
| } |
| return visitOrderEntryRoots(visitor, orderEntry); |
| } |
| }); |
| } |
| |
| static void visitSdkRoots(PsiFile file, RootVisitor visitor) { |
| // formality |
| final VirtualFile elt_vfile = file.getOriginalFile().getVirtualFile(); |
| List<OrderEntry> orderEntries = null; |
| if (elt_vfile != null) { // reality |
| final ProjectFileIndex fileIndex = ProjectRootManager.getInstance(file.getProject()).getFileIndex(); |
| orderEntries = fileIndex.getOrderEntriesForFile(elt_vfile); |
| if (orderEntries.size() > 0) { |
| for (OrderEntry entry : orderEntries) { |
| if (!visitOrderEntryRoots(visitor, entry)) break; |
| } |
| } |
| else { |
| orderEntries = null; |
| } |
| } |
| |
| // out-of-project file or non-file(e.g. console) - use roots of SDK assigned to project |
| if (orderEntries == null) { |
| final Sdk sdk = ProjectRootManager.getInstance(file.getProject()).getProjectSdk(); |
| if (sdk != null) { |
| visitSdkRoots(sdk, visitor); |
| } |
| } |
| } |
| |
| public static boolean visitSdkRoots(@NotNull Sdk sdk, @NotNull RootVisitor visitor) { |
| final VirtualFile[] roots = sdk.getRootProvider().getFiles(OrderRootType.CLASSES); |
| for (VirtualFile root : roots) { |
| if (!visitor.visitRoot(root, null, sdk, false)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| private static boolean visitModuleContentEntries(ModuleRootModel rootModel, RootVisitor visitor) { |
| // look in module sources |
| Set<VirtualFile> contentRoots = Sets.newHashSet(); |
| for (ContentEntry entry : rootModel.getContentEntries()) { |
| VirtualFile rootFile = entry.getFile(); |
| |
| if (rootFile != null && !visitor.visitRoot(rootFile, null, null, true)) return false; |
| contentRoots.add(rootFile); |
| for (VirtualFile folder : entry.getSourceFolderFiles()) { |
| if (!visitor.visitRoot(folder, rootModel.getModule(), null, true)) return false; |
| } |
| } |
| return true; |
| } |
| |
| private static boolean visitOrderEntryRoots(RootVisitor visitor, OrderEntry entry) { |
| Set<VirtualFile> allRoots = new LinkedHashSet<VirtualFile>(); |
| Collections.addAll(allRoots, entry.getFiles(OrderRootType.SOURCES)); |
| Collections.addAll(allRoots, entry.getFiles(OrderRootType.CLASSES)); |
| Module module = entry instanceof ModuleOrderEntry ? ((ModuleOrderEntry) entry).getModule() : null; |
| Sdk sdk = entry instanceof JdkOrderEntry ? ((JdkOrderEntry) entry).getJdk() : null; |
| for (VirtualFile root : allRoots) { |
| if (!visitor.visitRoot(root, module, sdk, false)) { |
| return false; |
| } |
| } |
| return true; |
| } |
| } |