| /* |
| * 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 org.jetbrains.plugins.groovy.unwrap; |
| |
| import com.intellij.codeInsight.unwrap.AbstractUnwrapper; |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.impl.PsiImplUtil; |
| import com.intellij.psi.impl.source.codeStyle.CodeEditUtil; |
| import com.intellij.util.IncorrectOperationException; |
| import org.jetbrains.annotations.Nullable; |
| import org.jetbrains.plugins.groovy.lang.lexer.GroovyTokenTypes; |
| import org.jetbrains.plugins.groovy.lang.psi.GroovyPsiElementFactory; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.GrBlockStatement; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.GrIfStatement; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.GrStatement; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.blocks.GrCodeBlock; |
| |
| import java.util.List; |
| |
| public abstract class GroovyUnwrapper extends AbstractUnwrapper<GroovyUnwrapper.Context> { |
| public GroovyUnwrapper(String description) { |
| super(description); |
| } |
| |
| @Override |
| protected Context createContext() { |
| return new Context(); |
| } |
| |
| public static boolean isElseBlock(@Nullable final PsiElement element) { |
| if (element == null) return false; |
| final PsiElement parent = element.getParent(); |
| return parent instanceof GrIfStatement && element == ((GrIfStatement)parent).getElseBranch(); |
| } |
| |
| @Override |
| public List<PsiElement> unwrap(Editor editor, PsiElement element) throws IncorrectOperationException { |
| List<PsiElement> res = super.unwrap(editor, element); |
| |
| for (PsiElement e : res) { |
| if (PsiImplUtil.isLeafElementOfType(e, GroovyTokenTypes.mNLS)) { |
| CodeEditUtil.setNodeGenerated(e.getNode(), true); |
| } |
| } |
| |
| return res; |
| } |
| |
| protected static class Context extends AbstractUnwrapper.AbstractContext { |
| |
| public void extractFromBlockOrSingleStatement(GrStatement block, PsiElement from) throws IncorrectOperationException { |
| if (block instanceof GrBlockStatement) { |
| extractFromCodeBlock(((GrBlockStatement)block).getBlock(), from); |
| } |
| else if (block != null) { |
| extract(block, block, from); |
| } |
| } |
| |
| public void extractFromCodeBlock(GrCodeBlock block, PsiElement from) throws IncorrectOperationException { |
| if (block == null) return; |
| |
| PsiElement rBrace = block.getRBrace(); |
| PsiElement lBrace = block.getLBrace(); |
| |
| PsiElement firstBodyElement; |
| if (lBrace == null) { |
| firstBodyElement = null; |
| } |
| else { |
| firstBodyElement = lBrace.getNextSibling(); |
| if (firstBodyElement == rBrace) { |
| firstBodyElement = null; |
| } |
| } |
| |
| PsiElement lastBodyElement; |
| if (rBrace == null) { |
| lastBodyElement = null; |
| } |
| else { |
| lastBodyElement = rBrace.getPrevSibling(); |
| if (lastBodyElement == lBrace) { |
| lastBodyElement = null; |
| } |
| } |
| |
| extract(firstBodyElement, lastBodyElement, from); |
| } |
| |
| @Override |
| protected boolean isWhiteSpace(PsiElement element) { |
| return org.jetbrains.plugins.groovy.lang.psi.impl.PsiImplUtil.isWhiteSpaceOrNls(element); |
| } |
| |
| public void setElseBranch(GrIfStatement ifStatement, GrStatement elseBranch) throws IncorrectOperationException { |
| GrStatement toExtract = elseBranch; |
| if (myIsEffective) { |
| ifStatement.replaceElseBranch(copyElement(elseBranch)); |
| toExtract = ifStatement.getElseBranch(); |
| } |
| addElementToExtract(toExtract); |
| } |
| |
| private static GrStatement copyElement(GrStatement e) throws IncorrectOperationException { |
| // We cannot call el.copy() for 'else' since it sets context to parent 'if'. |
| // This causes copy to be invalidated after parent 'if' is removed by setElseBranch method. |
| GroovyPsiElementFactory factory = GroovyPsiElementFactory.getInstance(e.getProject()); |
| return factory.createStatementFromText(e.getText(), null); |
| } |
| |
| } |
| } |