| /* |
| * 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; |
| |
| import com.intellij.lang.ASTFactory; |
| import com.intellij.lang.Commenter; |
| import com.intellij.lang.Language; |
| import com.intellij.lang.LanguageCommenters; |
| import com.intellij.openapi.fileTypes.LanguageFileType; |
| import com.intellij.psi.*; |
| import com.intellij.psi.impl.source.DummyHolderFactory; |
| import com.intellij.psi.impl.source.SourceTreeToPsiMap; |
| import com.intellij.psi.impl.source.tree.FileElement; |
| import com.intellij.psi.impl.source.tree.LeafElement; |
| import com.intellij.psi.impl.source.tree.TreeElement; |
| import com.intellij.util.IncorrectOperationException; |
| import org.jetbrains.annotations.NonNls; |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * @author yole |
| */ |
| public class PsiParserFacadeImpl implements PsiParserFacade { |
| protected final PsiManagerEx myManager; |
| |
| public PsiParserFacadeImpl(PsiManagerEx manager) { |
| myManager = manager; |
| } |
| |
| @Override |
| @NotNull |
| public PsiElement createWhiteSpaceFromText(@NotNull @NonNls String text) throws IncorrectOperationException { |
| final FileElement holderElement = DummyHolderFactory.createHolder(myManager, null).getTreeElement(); |
| final LeafElement newElement = ASTFactory.leaf(TokenType.WHITE_SPACE, holderElement.getCharTable().intern(text)); |
| holderElement.rawAddChildren(newElement); |
| GeneratedMarkerVisitor.markGenerated(newElement.getPsi()); |
| return newElement.getPsi(); |
| } |
| |
| @Override |
| @NotNull |
| public PsiComment createLineCommentFromText(@NotNull final LanguageFileType fileType, |
| @NotNull final String text) throws IncorrectOperationException { |
| Commenter commenter = LanguageCommenters.INSTANCE.forLanguage(fileType.getLanguage()); |
| assert commenter != null; |
| String prefix = commenter.getLineCommentPrefix(); |
| if (prefix == null) { |
| throw new IncorrectOperationException("No line comment prefix defined for language " + fileType.getLanguage().getID()); |
| } |
| |
| PsiFile aFile = createDummyFile(prefix + text, fileType); |
| PsiElement[] children = aFile.getChildren(); |
| for (PsiElement aChildren : children) { |
| if (aChildren instanceof PsiComment) { |
| PsiComment comment = (PsiComment)aChildren; |
| DummyHolderFactory.createHolder(myManager, (TreeElement)SourceTreeToPsiMap.psiElementToTree(comment), null); |
| return comment; |
| } |
| } |
| throw new IncorrectOperationException("Incorrect comment \"" + text + "\"."); |
| } |
| |
| @Override |
| @NotNull |
| public PsiComment createLineOrBlockCommentFromText(@NotNull Language lang, @NotNull String text) |
| throws IncorrectOperationException { |
| Commenter commenter = LanguageCommenters.INSTANCE.forLanguage(lang); |
| assert commenter != null:lang; |
| String prefix = commenter.getLineCommentPrefix(); |
| final String blockCommentPrefix = commenter.getBlockCommentPrefix(); |
| final String blockCommentSuffix = commenter.getBlockCommentSuffix(); |
| assert prefix != null || (blockCommentPrefix != null && blockCommentSuffix != null); |
| |
| PsiFile aFile = PsiFileFactory.getInstance(myManager.getProject()).createFileFromText("_Dummy_", lang, prefix != null ? (prefix + text) : (blockCommentPrefix + text + blockCommentSuffix)); |
| PsiElement[] children = aFile.getChildren(); |
| for (PsiElement aChildren : children) { |
| if (aChildren instanceof PsiComment) { |
| PsiComment comment = (PsiComment)aChildren; |
| DummyHolderFactory.createHolder(myManager, (TreeElement)SourceTreeToPsiMap.psiElementToTree(comment), null); |
| return comment; |
| } |
| } |
| throw new IncorrectOperationException("Incorrect comment \"" + text + "\"."); |
| } |
| |
| protected PsiFile createDummyFile(String text, final LanguageFileType fileType) { |
| String ext = fileType.getDefaultExtension(); |
| @NonNls String fileName = "_Dummy_." + ext; |
| |
| return PsiFileFactory.getInstance(myManager.getProject()).createFileFromText(fileType, fileName, text, 0, text.length()); |
| } |
| } |