| /* |
| * 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.intentions.conversions; |
| |
| import com.intellij.openapi.application.ApplicationManager; |
| import com.intellij.openapi.diagnostic.Logger; |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.ui.DialogWrapper; |
| import com.intellij.psi.PsiClass; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiField; |
| import com.intellij.psi.PsiReference; |
| import com.intellij.psi.search.searches.MethodReferencesSearch; |
| import com.intellij.refactoring.ui.ConflictsDialog; |
| import com.intellij.util.IncorrectOperationException; |
| import com.intellij.util.containers.HashSet; |
| import com.intellij.util.containers.MultiMap; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.plugins.groovy.GroovyLanguage; |
| import org.jetbrains.plugins.groovy.intentions.GroovyIntentionsBundle; |
| import org.jetbrains.plugins.groovy.intentions.base.Intention; |
| import org.jetbrains.plugins.groovy.intentions.base.PsiElementPredicate; |
| import org.jetbrains.plugins.groovy.lang.psi.GroovyPsiElementFactory; |
| import org.jetbrains.plugins.groovy.lang.psi.api.auxiliary.modifiers.GrModifier; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.GrVariableDeclaration; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.blocks.GrOpenBlock; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrReferenceExpression; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.GrTypeDefinitionBody; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.members.GrMethod; |
| import org.jetbrains.plugins.groovy.lang.psi.util.PsiUtil; |
| |
| import java.util.Collection; |
| |
| |
| /** |
| * @author Maxim.Medvedev |
| */ |
| public class ConvertMethodToClosureIntention extends Intention { |
| private static final Logger LOG = Logger.getInstance("#org.jetbrains.plugins.groovy.intentions.conversions.ConvertMethodToclosureIntention"); |
| |
| @NotNull |
| @Override |
| protected PsiElementPredicate getElementPredicate() { |
| return new MyPredicate(); |
| } |
| |
| @Override |
| protected void processIntention(@NotNull PsiElement element, Project project, Editor editor) throws IncorrectOperationException { |
| MultiMap<PsiElement, String> conflicts = new MultiMap<PsiElement, String>(); |
| final GrMethod method; |
| if (element.getParent() instanceof GrMethod) { |
| method = (GrMethod)element.getParent(); |
| } |
| else { |
| final PsiReference ref = element.getReference(); |
| LOG.assertTrue(ref != null); |
| final PsiElement resolved = ref.resolve(); |
| LOG.assertTrue(resolved instanceof GrMethod); |
| method = (GrMethod)resolved; |
| } |
| |
| final PsiClass containingClass = method.getContainingClass(); |
| final String methodName = method.getName(); |
| final PsiField field = containingClass.findFieldByName(methodName, true); |
| |
| if (field != null) { |
| conflicts.putValue(field, GroovyIntentionsBundle.message("field.already.exists", methodName)); |
| } |
| |
| final Collection<PsiReference> references = MethodReferencesSearch.search(method).findAll(); |
| final Collection<GrReferenceExpression> usagesToConvert = new HashSet<GrReferenceExpression>(references.size()); |
| for (PsiReference ref : references) { |
| final PsiElement psiElement = ref.getElement(); |
| if (!GroovyLanguage.INSTANCE.equals(psiElement.getLanguage())) { |
| conflicts.putValue(psiElement, GroovyIntentionsBundle.message("method.is.used.outside.of.groovy")); |
| } |
| else if (!PsiUtil.isMethodUsage(psiElement)) { |
| if (psiElement instanceof GrReferenceExpression) { |
| if (((GrReferenceExpression)psiElement).hasMemberPointer()) { |
| usagesToConvert.add((GrReferenceExpression)psiElement); |
| } |
| } |
| } |
| } |
| if (!conflicts.isEmpty()) { |
| ConflictsDialog conflictsDialog = new ConflictsDialog(project, conflicts, new Runnable() { |
| @Override |
| public void run() { |
| execute(method, usagesToConvert); |
| } |
| }); |
| conflictsDialog.show(); |
| if (conflictsDialog.getExitCode() != DialogWrapper.OK_EXIT_CODE) return; |
| } |
| execute(method, usagesToConvert); |
| } |
| |
| private static void execute(final GrMethod method, final Collection<GrReferenceExpression> usagesToConvert) { |
| ApplicationManager.getApplication().runWriteAction(new Runnable() { |
| @Override |
| public void run() { |
| GroovyPsiElementFactory factory = GroovyPsiElementFactory.getInstance(method.getProject()); |
| |
| StringBuilder builder = new StringBuilder(method.getTextLength()); |
| String modifiers = method.getModifierList().getText(); |
| if (modifiers.trim().isEmpty()) { |
| modifiers = GrModifier.DEF; |
| } |
| builder.append(modifiers).append(' '); |
| builder.append(method.getName()).append("={"); |
| builder.append(method.getParameterList().getText()).append(" ->"); |
| final GrOpenBlock block = method.getBlock(); |
| builder.append(block.getText().substring(1)); |
| final GrVariableDeclaration variableDeclaration = |
| GroovyPsiElementFactory.getInstance(method.getProject()).createFieldDeclarationFromText(builder.toString()); |
| method.replace(variableDeclaration); |
| |
| for (GrReferenceExpression element : usagesToConvert) { |
| final PsiElement qualifier = element.getQualifier(); |
| final StringBuilder text = new StringBuilder(qualifier.getText()); |
| element.setQualifier(null); |
| text.append('.').append(element.getText()); |
| element.replace(factory.createExpressionFromText(text.toString())); |
| } |
| } |
| }); |
| } |
| |
| private static class MyPredicate implements PsiElementPredicate { |
| @Override |
| public boolean satisfiedBy(PsiElement element) { |
| if (element.getLanguage() != GroovyLanguage.INSTANCE) return false; |
| |
| GrMethod method; |
| final PsiReference ref = element.getReference(); |
| if (ref != null) { |
| final PsiElement resolved = ref.resolve(); |
| if (!(resolved instanceof GrMethod)) return false; |
| method = (GrMethod)resolved; |
| } |
| else { |
| final PsiElement parent = element.getParent(); |
| if (!(parent instanceof GrMethod)) return false; |
| if (((GrMethod)parent).getNameIdentifierGroovy() != element) return false; |
| method = (GrMethod)parent; |
| } |
| return method.getBlock() != null && method.getParent() instanceof GrTypeDefinitionBody; |
| // return element instanceof GrMethod && ((GrMethod)element).getBlock() != null && element.getParent() instanceof GrTypeDefinitionBody; |
| } |
| } |
| } |
| |
| |