| /* |
| * 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.psi.util; |
| |
| import com.google.idea.blaze.base.lang.buildfile.language.BuildFileLanguage; |
| import com.google.idea.blaze.base.lang.buildfile.language.BuildFileType; |
| import com.google.idea.blaze.base.lang.buildfile.lexer.BuildToken; |
| import com.google.idea.blaze.base.lang.buildfile.lexer.TokenKind; |
| import com.google.idea.blaze.base.lang.buildfile.psi.Argument; |
| import com.google.idea.blaze.base.lang.buildfile.psi.Expression; |
| import com.google.idea.blaze.base.lang.buildfile.psi.FuncallExpression; |
| import com.intellij.lang.ASTNode; |
| import com.intellij.openapi.components.ServiceManager; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiFile; |
| import com.intellij.psi.PsiFileFactory; |
| import com.intellij.psi.impl.PsiFileFactoryImpl; |
| import com.intellij.testFramework.LightVirtualFile; |
| |
| /** |
| * Creates dummy BuildElements, e.g. for renaming purposes. |
| */ |
| public class BuildElementGenerator { |
| |
| public static BuildElementGenerator getInstance(Project project) { |
| return ServiceManager.getService(project, BuildElementGenerator.class); |
| } |
| |
| private static final String DUMMY_FILENAME = "dummy.bzl"; |
| |
| private final Project project; |
| |
| public BuildElementGenerator(Project project) { |
| this.project = project; |
| } |
| |
| public PsiFile createDummyFile(String contents) { |
| PsiFileFactory factory = PsiFileFactory.getInstance(project); |
| LightVirtualFile virtualFile = new LightVirtualFile(DUMMY_FILENAME, BuildFileType.INSTANCE, contents); |
| PsiFile psiFile = ((PsiFileFactoryImpl) factory).trySetupPsiForFile(virtualFile, BuildFileLanguage.INSTANCE, false, true); |
| assert psiFile != null; |
| return psiFile; |
| } |
| |
| public ASTNode createNameIdentifier(String name) { |
| PsiFile dummyFile = createDummyFile(name); |
| ASTNode referenceNode = dummyFile.getNode().getFirstChildNode(); |
| ASTNode nameNode = referenceNode.getFirstChildNode(); |
| if (nameNode.getElementType() != BuildToken.IDENTIFIER) { |
| throw new RuntimeException("Expecting an IDENTIFIER node directly below the BuildFile PSI element"); |
| } |
| return nameNode; |
| } |
| |
| public ASTNode createStringNode(String contents) { |
| PsiFile dummyFile = createDummyFile('"' + contents + '"'); |
| ASTNode literalNode = dummyFile.getNode().getFirstChildNode(); |
| ASTNode stringNode = literalNode.getFirstChildNode(); |
| assert(stringNode.getElementType() == BuildToken.fromKind(TokenKind.STRING)); |
| return stringNode; |
| } |
| |
| public Argument.Keyword createKeywordArgument(String keyword, String value) { |
| String dummyText = String.format("foo(%s = \"%s\")", keyword, value); |
| FuncallExpression funcall = (FuncallExpression) createExpressionFromText(dummyText); |
| return (Argument.Keyword) funcall.getArguments()[0]; |
| } |
| |
| public Expression createExpressionFromText(String text) { |
| PsiFile dummyFile = createDummyFile(text); |
| PsiElement element = dummyFile.getFirstChild(); |
| if (element instanceof Expression) { |
| return (Expression) element; |
| } |
| throw new RuntimeException("Could not parse text as expression: '" + text + "'"); |
| } |
| |
| } |