| /* |
| * Copyright 2006 Sascha Weinreuter |
| * |
| * 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 org.intellij.lang.regexp.psi.impl; |
| |
| import com.intellij.extapi.psi.ASTWrapperPsiElement; |
| import com.intellij.lang.ASTNode; |
| import com.intellij.lang.Language; |
| import com.intellij.lang.LanguageParserDefinitions; |
| import com.intellij.lang.ParserDefinition; |
| import com.intellij.lang.injection.InjectedLanguageManager; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiElementVisitor; |
| import com.intellij.psi.impl.source.tree.injected.InjectedLanguageUtil; |
| import com.intellij.psi.tree.IElementType; |
| import com.intellij.util.IncorrectOperationException; |
| import org.intellij.lang.regexp.RegExpLanguage; |
| import org.intellij.lang.regexp.psi.RegExpElement; |
| import org.intellij.lang.regexp.psi.RegExpElementVisitor; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| public abstract class RegExpElementImpl extends ASTWrapperPsiElement implements RegExpElement { |
| public RegExpElementImpl(ASTNode node) { |
| super(node); |
| } |
| |
| @NotNull |
| public Language getLanguage() { |
| return RegExpLanguage.INSTANCE; |
| } |
| |
| @NotNull |
| @SuppressWarnings({ "ConstantConditions", "EmptyMethod" }) |
| public ASTNode getNode() { |
| return super.getNode(); |
| } |
| |
| public String toString() { |
| return getClass().getSimpleName() + ": <" + getText() + ">"; |
| } |
| |
| public void accept(@NotNull PsiElementVisitor visitor) { |
| if (visitor instanceof RegExpElementVisitor) { |
| accept((RegExpElementVisitor)visitor); |
| } else { |
| super.accept(visitor); |
| } |
| } |
| |
| public void accept(RegExpElementVisitor visitor) { |
| visitor.visitRegExpElement(this); |
| } |
| |
| public PsiElement replace(@NotNull PsiElement psiElement) throws IncorrectOperationException { |
| final ASTNode node = psiElement.getNode(); |
| assert node != null; |
| getNode().getTreeParent().replaceChild(getNode(), node); |
| return psiElement; |
| } |
| |
| public void delete() throws IncorrectOperationException { |
| getNode().getTreeParent().removeChild(getNode()); |
| } |
| |
| public final String getUnescapedText() { |
| if (InjectedLanguageUtil.isInInjectedLanguagePrefixSuffix(this)) { |
| // do not attempt to decode text if PsiElement is part of prefix/suffix |
| return getText(); |
| } |
| return InjectedLanguageManager.getInstance(getProject()).getUnescapedText(this); |
| } |
| |
| public static boolean isLiteralExpression(@Nullable PsiElement context) { |
| if (context == null) return false; |
| final ASTNode astNode = context.getNode(); |
| if (astNode == null) { |
| return false; |
| } |
| final IElementType elementType = astNode.getElementType(); |
| final ParserDefinition parserDefinition = LanguageParserDefinitions.INSTANCE.forLanguage(context.getLanguage()); |
| return parserDefinition.getStringLiteralElements().contains(elementType); |
| } |
| } |