| /* |
| * 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.ide.util.PsiNavigationSupport; |
| import com.intellij.lang.FileASTNode; |
| import com.intellij.lang.Language; |
| import com.intellij.openapi.application.ApplicationManager; |
| import com.intellij.openapi.diagnostic.Logger; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.util.TextRange; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.psi.*; |
| import com.intellij.psi.impl.*; |
| import com.intellij.psi.impl.file.PsiFileImplUtil; |
| import com.intellij.psi.impl.source.resolve.FileContextUtil; |
| import com.intellij.psi.search.PsiElementProcessor; |
| import com.intellij.psi.search.SearchScope; |
| import com.intellij.util.IncorrectOperationException; |
| import com.intellij.util.text.CharArrayUtil; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| public abstract class LightPsiFileImpl extends PsiElementBase implements PsiFileEx { |
| |
| private static final Logger LOG = Logger.getInstance("#com.intellij.psi.impl.source.LightPsiFileImpl"); |
| private PsiFile myOriginalFile = null; |
| private boolean myExplicitlySetAsValid = false; |
| private final FileViewProvider myViewProvider; |
| private final PsiManagerImpl myManager; |
| private final Language myLanguage; |
| |
| public LightPsiFileImpl(@NotNull FileViewProvider provider, @NotNull Language language) { |
| myViewProvider = provider; |
| myManager = (PsiManagerImpl)provider.getManager(); |
| myLanguage = language; |
| } |
| |
| @Override |
| public VirtualFile getVirtualFile() { |
| return getViewProvider().isEventSystemEnabled() ? getViewProvider().getVirtualFile() : null; |
| } |
| |
| @Override |
| public boolean processChildren(final PsiElementProcessor<PsiFileSystemItem> processor) { |
| return true; |
| } |
| |
| @Override |
| public boolean isValid() { |
| if (!getViewProvider().isPhysical() || myExplicitlySetAsValid) return true; // "dummy" file |
| return getViewProvider().getVirtualFile().isValid(); |
| } |
| |
| public void setIsValidExplicitly(boolean b) { |
| LOG.assertTrue(ApplicationManager.getApplication().isUnitTestMode()); |
| myExplicitlySetAsValid = b; |
| } |
| |
| @Override |
| public String getText() { |
| return getViewProvider().getContents().toString(); |
| } |
| |
| @Override |
| public long getModificationStamp() { |
| return getViewProvider().getModificationStamp(); |
| } |
| |
| @Override |
| public void subtreeChanged() { |
| clearCaches(); |
| getViewProvider().rootChanged(this); |
| } |
| |
| public abstract void clearCaches(); |
| |
| @Override |
| @SuppressWarnings({"CloneDoesntDeclareCloneNotSupportedException"}) |
| protected LightPsiFileImpl clone() { |
| final FileViewProvider provider = getViewProvider().clone(); |
| final LightPsiFileImpl clone = (LightPsiFileImpl)provider.getPsi(getLanguage()); |
| |
| copyCopyableDataTo(clone); |
| |
| if (getViewProvider().isEventSystemEnabled()) { |
| clone.myOriginalFile = this; |
| } |
| else if (myOriginalFile != null) { |
| clone.myOriginalFile = myOriginalFile; |
| } |
| return clone; |
| } |
| |
| @Override |
| @NotNull |
| public String getName() { |
| return getViewProvider().getVirtualFile().getName(); |
| } |
| |
| @Override |
| public PsiElement setName(@NotNull String name) throws IncorrectOperationException { |
| checkSetName(name); |
| subtreeChanged(); |
| return PsiFileImplUtil.setName(this, name); |
| } |
| |
| @Override |
| public void checkSetName(String name) throws IncorrectOperationException { |
| if (!getViewProvider().isEventSystemEnabled()) return; |
| PsiFileImplUtil.checkSetName(this, name); |
| } |
| |
| @Override |
| public PsiDirectory getParent() { |
| return getContainingDirectory(); |
| } |
| |
| @Override |
| public PsiDirectory getContainingDirectory() { |
| final VirtualFile parentFile = getViewProvider().getVirtualFile().getParent(); |
| if (parentFile == null) return null; |
| return getManager().findDirectory(parentFile); |
| } |
| |
| @Nullable |
| public PsiDirectory getParentDirectory() { |
| return getContainingDirectory(); |
| } |
| |
| @Override |
| public PsiFile getContainingFile() { |
| return this; |
| } |
| |
| @Override |
| public void delete() throws IncorrectOperationException { |
| throw new IncorrectOperationException("Not implemented"); |
| } |
| |
| @Override |
| public void checkDelete() throws IncorrectOperationException { |
| if (!getViewProvider().isEventSystemEnabled()) { |
| throw new IncorrectOperationException(); |
| } |
| CheckUtil.checkWritable(this); |
| } |
| |
| @Override |
| @NotNull |
| public PsiFile getOriginalFile() { |
| return myOriginalFile == null ? this : myOriginalFile; |
| } |
| |
| public void setOriginalFile(final PsiFile originalFile) { |
| myOriginalFile = originalFile.getOriginalFile(); |
| } |
| |
| @Override |
| @NotNull |
| public PsiFile[] getPsiRoots() { |
| return new PsiFile[]{this}; |
| } |
| |
| @Override |
| public boolean isPhysical() { |
| return getViewProvider().isEventSystemEnabled(); |
| } |
| |
| @Override |
| @NotNull |
| public Language getLanguage() { |
| return myLanguage; |
| } |
| |
| @Override |
| @NotNull |
| public FileViewProvider getViewProvider() { |
| return myViewProvider; |
| } |
| |
| @Override |
| public PsiManager getManager() { |
| return myManager; |
| } |
| |
| @Override |
| @NotNull |
| public Project getProject() { |
| final PsiManager manager = getManager(); |
| if (manager == null) throw new PsiInvalidElementAccessException(this); |
| |
| return manager.getProject(); |
| } |
| |
| @Override |
| public void acceptChildren(@NotNull PsiElementVisitor visitor) { |
| PsiElement child = getFirstChild(); |
| while (child != null) { |
| final PsiElement nextSibling = child.getNextSibling(); |
| child.accept(visitor); |
| child = nextSibling; |
| } |
| } |
| |
| @Override |
| public final synchronized PsiElement copy() { |
| return clone(); |
| } |
| |
| @Override |
| public final void checkAdd(@NotNull PsiElement element) throws IncorrectOperationException { |
| CheckUtil.checkWritable(this); |
| } |
| |
| @Override |
| @NotNull |
| public synchronized PsiReference[] getReferences() { |
| return SharedPsiElementImplUtil.getReferences(this); |
| } |
| |
| @Override |
| @NotNull |
| public SearchScope getUseScope() { |
| return ResolveScopeManager.getElementUseScope(this); |
| } |
| |
| @Override |
| public void navigate(boolean requestFocus) { |
| PsiNavigationSupport.getInstance().getDescriptor(this).navigate(requestFocus); |
| } |
| |
| @Override |
| public synchronized PsiElement findElementAt(int offset) { |
| return getViewProvider().findElementAt(offset); |
| } |
| |
| @Override |
| public synchronized PsiReference findReferenceAt(int offset) { |
| return getViewProvider().findReferenceAt(offset); |
| } |
| |
| @Override |
| @NotNull |
| public char[] textToCharArray() { |
| return CharArrayUtil.fromSequence(getViewProvider().getContents()); |
| } |
| |
| @Override |
| public boolean isContentsLoaded() { |
| return true; |
| } |
| |
| @Override |
| public void onContentReload() { |
| } |
| |
| @Override |
| public boolean isWritable() { |
| return getViewProvider().getVirtualFile().isWritable(); |
| } |
| |
| @Override |
| @NotNull |
| public abstract PsiElement[] getChildren(); |
| |
| @Override |
| public PsiElement getFirstChild() { |
| final PsiElement[] children = getChildren(); |
| return children.length == 0 ? null : children[0]; |
| } |
| |
| @Override |
| public PsiElement getLastChild() { |
| final PsiElement[] children = getChildren(); |
| return children.length == 0 ? null : children[children.length - 1]; |
| } |
| |
| @Override |
| public TextRange getTextRange() { |
| return new TextRange(0, getTextLength()); |
| } |
| |
| @Override |
| public int getStartOffsetInParent() { |
| return 0; |
| } |
| |
| @Override |
| public int getTextLength() { |
| return getViewProvider().getContents().length(); |
| } |
| |
| @Override |
| public int getTextOffset() { |
| return 0; |
| } |
| |
| @Override |
| public boolean textMatches(@NotNull PsiElement element) { |
| return textMatches(element.getText()); |
| } |
| |
| @Override |
| public boolean textMatches(@NotNull CharSequence text) { |
| return text.equals(getViewProvider().getContents()); |
| } |
| |
| @Override |
| public boolean textContains(char c) { |
| return getText().indexOf(c) >= 0; |
| } |
| |
| @Override |
| public PsiElement add(@NotNull PsiElement element) throws IncorrectOperationException { |
| throw new IncorrectOperationException("Not implemented"); |
| } |
| |
| @Override |
| public PsiElement addBefore(@NotNull PsiElement element, PsiElement anchor) throws IncorrectOperationException { |
| throw new IncorrectOperationException("Not implemented"); |
| } |
| |
| @Override |
| public PsiElement addAfter(@NotNull PsiElement element, PsiElement anchor) throws IncorrectOperationException { |
| throw new IncorrectOperationException("Not implemented"); |
| } |
| |
| @Override |
| public PsiElement addRange(PsiElement first, PsiElement last) throws IncorrectOperationException { |
| throw new IncorrectOperationException("Not implemented"); |
| } |
| |
| @Override |
| public final PsiElement addRangeBefore(@NotNull PsiElement first, @NotNull PsiElement last, PsiElement anchor) |
| throws IncorrectOperationException { |
| throw new IncorrectOperationException("Not implemented"); |
| } |
| |
| @Override |
| public final PsiElement addRangeAfter(PsiElement first, PsiElement last, PsiElement anchor) |
| throws IncorrectOperationException { |
| throw new IncorrectOperationException("Not implemented"); |
| } |
| |
| @Override |
| public void deleteChildRange(PsiElement first, PsiElement last) throws IncorrectOperationException { |
| throw new IncorrectOperationException("Not implemented"); |
| } |
| |
| @Override |
| public PsiElement replace(@NotNull PsiElement newElement) throws IncorrectOperationException { |
| throw new IncorrectOperationException("Not implemented"); |
| } |
| |
| @Override |
| public FileASTNode getNode() { |
| return null; |
| } |
| |
| public abstract LightPsiFileImpl copyLight(final FileViewProvider viewProvider); |
| |
| @Override |
| public PsiElement getContext() { |
| return FileContextUtil.getFileContext(this); |
| } |
| } |