| /* |
| * Copyright 2000-2014 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.lang.Language; |
| import com.intellij.openapi.fileTypes.*; |
| import com.intellij.psi.*; |
| import com.intellij.psi.impl.source.tree.FileElement; |
| import com.intellij.psi.impl.source.tree.SharedImplUtil; |
| import com.intellij.psi.impl.source.tree.TreeElement; |
| import com.intellij.util.CharTable; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| public class DummyHolder extends PsiFileImpl { |
| protected final PsiElement myContext; |
| private final CharTable myTable; |
| private final Boolean myExplicitlyValid; |
| private final Language myLanguage; |
| private volatile FileElement myFileElement = null; |
| @SuppressWarnings("EmptyClass") private static class DummyHolderTreeLock {} |
| private final DummyHolderTreeLock myTreeElementLock = new DummyHolderTreeLock(); |
| |
| public DummyHolder(@NotNull PsiManager manager, TreeElement contentElement, PsiElement context) { |
| this(manager, contentElement, context, SharedImplUtil.findCharTableByTree(contentElement)); |
| } |
| |
| public DummyHolder(@NotNull PsiManager manager, CharTable table, boolean validity) { |
| this(manager, null, null, table, Boolean.valueOf(validity), PlainTextLanguage.INSTANCE); |
| } |
| |
| public DummyHolder(@NotNull PsiManager manager, PsiElement context) { |
| this(manager, null, context, null); |
| } |
| |
| public DummyHolder(@NotNull PsiManager manager, @Nullable TreeElement contentElement, PsiElement context, @Nullable CharTable table) { |
| this(manager, contentElement, context, table, null, language(context, PlainTextLanguage.INSTANCE)); |
| } |
| |
| protected static Language language(PsiElement context, Language defaultLanguage) { |
| if (context == null) return defaultLanguage; |
| PsiFile file = context.getContainingFile(); |
| if (file == null) return defaultLanguage; |
| Language contextLanguage = context.getLanguage(); |
| Language language = file.getLanguage(); |
| if (language.isKindOf(contextLanguage)) return language; |
| return contextLanguage; |
| } |
| |
| public DummyHolder(@NotNull PsiManager manager, @Nullable TreeElement contentElement, @Nullable PsiElement context, @Nullable CharTable table, @Nullable Boolean validity, Language language) { |
| super(TokenType.DUMMY_HOLDER, TokenType.DUMMY_HOLDER, new DummyHolderViewProvider(manager)); |
| myLanguage = language; |
| ((DummyHolderViewProvider)getViewProvider()).setDummyHolder(this); |
| myContext = context; |
| myTable = table != null ? table : IdentityCharTable.INSTANCE; |
| if (contentElement instanceof FileElement) { |
| myFileElement = (FileElement)contentElement; |
| myFileElement.setPsi(this); |
| myFileElement.setCharTable(myTable); |
| } |
| else if (contentElement != null) { |
| getTreeElement().rawAddChildren(contentElement); |
| clearCaches(); |
| } |
| myExplicitlyValid = validity; |
| } |
| |
| public DummyHolder(@NotNull PsiManager manager, PsiElement context, CharTable table) { |
| this(manager, null, context, table); |
| } |
| |
| public DummyHolder(@NotNull PsiManager manager, final CharTable table, final Language language) { |
| this(manager, null, null, table, null, language); |
| } |
| |
| public DummyHolder(@NotNull PsiManager manager, final Language language, final PsiElement context) { |
| this(manager, null, context, null, null, language); |
| } |
| |
| @Override |
| public PsiElement getContext() { |
| return myContext; |
| } |
| |
| @Override |
| public boolean isValid() { |
| if (myExplicitlyValid != null) return myExplicitlyValid.booleanValue(); |
| return super.isValid() && !(myContext != null && !myContext.isValid()); |
| } |
| |
| @Override |
| public void accept(@NotNull PsiElementVisitor visitor) { |
| visitor.visitFile(this); |
| } |
| |
| @SuppressWarnings({"HardCodedStringLiteral"}) |
| public String toString() { |
| return "DummyHolder"; |
| } |
| |
| @Override |
| @NotNull |
| public FileType getFileType() { |
| if (myContext != null) { |
| PsiFile containingFile = myContext.getContainingFile(); |
| if (containingFile != null) return containingFile.getFileType(); |
| } |
| final LanguageFileType fileType = myLanguage.getAssociatedFileType(); |
| return fileType != null ? fileType : PlainTextFileType.INSTANCE; |
| } |
| |
| @Override |
| public FileElement getTreeElement() { |
| FileElement fileElement = myFileElement; |
| if (fileElement != null) return fileElement; |
| |
| synchronized (myTreeElementLock) { |
| fileElement = myFileElement; |
| if (fileElement == null) { |
| fileElement = new FileElement(TokenType.DUMMY_HOLDER, null); |
| fileElement.setPsi(this); |
| if (myTable != null) fileElement.setCharTable(myTable); |
| myFileElement = fileElement; |
| clearCaches(); |
| } |
| return fileElement; |
| } |
| } |
| |
| @Override |
| @NotNull |
| public Language getLanguage() { |
| return myLanguage; |
| } |
| |
| @Override |
| @SuppressWarnings({"CloneDoesntDeclareCloneNotSupportedException"}) |
| protected PsiFileImpl clone() { |
| final PsiFileImpl psiClone = cloneImpl(myFileElement); |
| final DummyHolderViewProvider dummyHolderViewProvider = new DummyHolderViewProvider(getManager()); |
| myViewProvider = dummyHolderViewProvider; |
| dummyHolderViewProvider.setDummyHolder((DummyHolder)psiClone); |
| final FileElement treeClone = (FileElement)calcTreeElement().clone(); |
| psiClone.setTreeElementPointer(treeClone); // should not use setTreeElement here because cloned file still have VirtualFile (SCR17963) |
| psiClone.myOriginalFile = isPhysical() ? this : myOriginalFile; |
| treeClone.setPsi(psiClone); |
| return psiClone; |
| } |
| |
| private FileViewProvider myViewProvider = null; |
| |
| @Override |
| @NotNull |
| public FileViewProvider getViewProvider() { |
| if(myViewProvider != null) return myViewProvider; |
| return super.getViewProvider(); |
| } |
| } |