/* * Copyright 2000-2015 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.tree; import com.intellij.lang.*; import com.intellij.openapi.util.Getter; import com.intellij.psi.PsiElement; import com.intellij.psi.impl.PsiManagerEx; import com.intellij.psi.impl.source.CharTableImpl; import com.intellij.psi.impl.source.PsiFileImpl; import com.intellij.psi.tree.IElementType; import com.intellij.psi.tree.ILightStubFileElementType; import com.intellij.util.CharTable; import org.jetbrains.annotations.NotNull; public class FileElement extends LazyParseableElement implements FileASTNode, Getter<FileElement> { public static final FileElement[] EMPTY_ARRAY = new FileElement[0]; private volatile CharTable myCharTable = new CharTableImpl(); private volatile boolean myDetached; @Override protected PsiElement createPsiNoLock() { return myDetached ? null : super.createPsiNoLock(); } public void detachFromFile() { myDetached = true; clearPsi(); } @Override @NotNull public CharTable getCharTable() { return myCharTable; } @NotNull @Override public LighterAST getLighterAST() { IElementType contentType = getElementType(); if (!isParsed() && contentType instanceof ILightStubFileElementType) { return new FCTSBackedLighterAST(getCharTable(), ((ILightStubFileElementType<?>)contentType).parseContentsLight(this)); } return new TreeBackedLighterAST(this); } public FileElement(@NotNull IElementType type, CharSequence text) { super(type, text); } @Deprecated // for 8.1 API compatibility public FileElement(IElementType type) { super(type, null); } @Override public PsiManagerEx getManager() { CompositeElement treeParent = getTreeParent(); if (treeParent != null) return treeParent.getManager(); return (PsiManagerEx)getPsi().getManager(); //TODO: cache? } @Override public ASTNode copyElement() { PsiFileImpl psiElement = (PsiFileImpl)getPsi(); PsiFileImpl psiElementCopy = (PsiFileImpl)psiElement.copy(); return psiElementCopy.getTreeElement(); } public void setCharTable(@NotNull CharTable table) { myCharTable = table; } @Override public FileElement get() { return this; } }