| /* |
| * Copyright 2000-2009 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.intellij.psi.impl.source; |
| |
| import com.intellij.extapi.psi.ASTDelegatePsiElement; |
| import com.intellij.lang.ASTNode; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.impl.source.tree.TreeElement; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| public class SourceTreeToPsiMap { |
| private SourceTreeToPsiMap() { } |
| |
| @Nullable |
| public static PsiElement treeElementToPsi(@Nullable final ASTNode element) { |
| return element == null ? null : element.getPsi(); |
| } |
| |
| @NotNull |
| public static <T extends PsiElement> T treeToPsiNotNull(@NotNull final ASTNode element) { |
| final PsiElement psi = element.getPsi(); |
| assert psi != null : element; |
| //noinspection unchecked |
| return (T)psi; |
| } |
| |
| @Nullable |
| public static ASTNode psiElementToTree(@Nullable final PsiElement psiElement) { |
| return psiElement == null ? null : psiElement.getNode(); |
| } |
| |
| @NotNull |
| public static TreeElement psiToTreeNotNull(@NotNull final PsiElement psiElement) { |
| final ASTNode node = psiElement.getNode(); |
| assert node instanceof TreeElement : psiElement + ", " + node; |
| return (TreeElement)node; |
| } |
| |
| public static boolean hasTreeElement(@Nullable final PsiElement psiElement) { |
| return psiElement instanceof TreeElement || psiElement instanceof ASTDelegatePsiElement || psiElement instanceof PsiFileImpl; |
| } |
| } |