| /* |
| * Copyright 2016 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.base.lang.buildfile.references; |
| |
| import com.google.idea.blaze.base.lang.buildfile.psi.BuildFile; |
| import com.google.idea.blaze.base.lang.buildfile.psi.FuncallExpression; |
| import com.google.idea.blaze.base.lang.buildfile.psi.StringLiteral; |
| import com.google.idea.blaze.base.lang.buildfile.psi.util.PsiUtils; |
| import com.google.idea.blaze.base.model.primitives.WorkspacePath; |
| import com.google.idea.blaze.base.model.primitives.WorkspaceRoot; |
| import com.intellij.lang.ASTNode; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.util.TextRange; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiFileSystemItem; |
| import com.intellij.psi.PsiReferenceBase; |
| import com.intellij.util.IncorrectOperationException; |
| import com.intellij.util.ObjectUtils; |
| import javax.annotation.Nullable; |
| |
| /** The external workspace component of a label (between '@' and '//') */ |
| public class ExternalWorkspaceReferenceFragment extends PsiReferenceBase<StringLiteral> { |
| |
| public ExternalWorkspaceReferenceFragment(LabelReference labelReference) { |
| super(labelReference.getElement(), labelReference.getRangeInElement(), labelReference.isSoft()); |
| } |
| |
| @Override |
| public TextRange getRangeInElement() { |
| String rawText = myElement.getText(); |
| boolean valid = LabelUtils.getExternalWorkspaceComponent(myElement.getStringContents()) != null; |
| if (!valid) { |
| return TextRange.EMPTY_RANGE; |
| } |
| int endIndex = rawText.indexOf("//"); |
| if (endIndex == -1) { |
| endIndex = rawText.length() - 1; |
| } |
| return new TextRange(1, endIndex); |
| } |
| |
| @Nullable |
| @Override |
| public FuncallExpression resolve() { |
| String name = LabelUtils.getExternalWorkspaceComponent(myElement.getStringContents()); |
| if (name == null) { |
| return null; |
| } |
| BuildFile workspaceFile = resolveProjectWorkspaceFile(myElement.getProject()); |
| return workspaceFile != null ? workspaceFile.findRule(name) : null; |
| } |
| |
| @Nullable |
| private static BuildFile resolveProjectWorkspaceFile(Project project) { |
| WorkspaceRoot projectRoot = WorkspaceRoot.fromProject(project); |
| if (projectRoot == null) { |
| return null; |
| } |
| PsiFileSystemItem workspaceFile = |
| BuildReferenceManager.getInstance(project) |
| .resolveFile(projectRoot.fileForPath(new WorkspacePath("WORKSPACE"))); |
| return ObjectUtils.tryCast(workspaceFile, BuildFile.class); |
| } |
| |
| @Override |
| public Object[] getVariants() { |
| return EMPTY_ARRAY; |
| } |
| |
| @Override |
| public PsiElement handleElementRename(String newElementName) throws IncorrectOperationException { |
| String oldString = myElement.getStringContents(); |
| int slashesIndex = oldString.indexOf("//"); |
| String newString = |
| String.format( |
| "@%s%s", newElementName, slashesIndex == -1 ? "" : oldString.substring(slashesIndex)); |
| return handleRename(newString); |
| } |
| |
| @Override |
| public PsiElement bindToElement(PsiElement element) throws IncorrectOperationException { |
| return myElement; |
| } |
| |
| private PsiElement handleRename(String newStringContents) { |
| ASTNode node = myElement.getNode(); |
| node.replaceChild( |
| node.getFirstChildNode(), |
| PsiUtils.createNewLabel(myElement.getProject(), newStringContents)); |
| return myElement; |
| } |
| } |