| /* |
| * Copyright 2017 The Bazel Authors. All rights reserved. |
| * |
| * 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.google.idea.blaze.python.search; |
| |
| import com.google.idea.blaze.base.settings.Blaze; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.psi.PsiDirectory; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiFile; |
| import com.intellij.psi.search.GlobalSearchScope; |
| import com.intellij.psi.search.SearchScope; |
| import com.intellij.psi.search.UseScopeEnlarger; |
| import com.jetbrains.python.PyNames; |
| import com.jetbrains.python.psi.PyFile; |
| import javax.annotation.Nullable; |
| |
| /** |
| * Genfiles (and files in READONLY, etc.) are not included in the project scope. To resolve |
| * references to these files, we need to either add them to the project scope (which would destroy |
| * performance) or modify the default scope behavior, as done here. |
| */ |
| public class BlazePyUseScopeEnlarger extends UseScopeEnlarger { |
| |
| @Nullable |
| @Override |
| public SearchScope getAdditionalUseScope(PsiElement element) { |
| if (!Blaze.isBlazeProject(element.getProject())) { |
| return null; |
| } |
| if (isPyPackageOutsideProject(element) || isPyFileOutsideProject(element)) { |
| return GlobalSearchScope.projectScope(element.getProject()); |
| } |
| return null; |
| } |
| |
| private static boolean isPyPackageOutsideProject(PsiElement element) { |
| if (!(element instanceof PsiDirectory)) { |
| return false; |
| } |
| PsiDirectory dir = (PsiDirectory) element; |
| return dir.findFile(PyNames.INIT_DOT_PY) != null |
| && !inProjectScope(dir.getProject(), dir.getVirtualFile()); |
| } |
| |
| private static boolean isPyFileOutsideProject(PsiElement element) { |
| PsiFile file = element.getContainingFile(); |
| return file instanceof PyFile |
| && !inProjectScope(file.getProject(), file.getViewProvider().getVirtualFile()); |
| } |
| |
| private static boolean inProjectScope(Project project, VirtualFile virtualFile) { |
| return GlobalSearchScope.projectScope(project).contains(virtualFile); |
| } |
| } |