| /* |
| * Copyright 2000-2013 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.codeInsight.daemon.impl.quickfix; |
| |
| import com.intellij.codeInsight.FileModificationService; |
| import com.intellij.codeInsight.daemon.QuickFixBundle; |
| import com.intellij.codeInspection.LocalQuickFixAndIntentionActionOnPsiElement; |
| import com.intellij.ide.util.SuperMethodWarningUtil; |
| import com.intellij.openapi.application.ApplicationManager; |
| import com.intellij.openapi.command.undo.UndoUtil; |
| import com.intellij.openapi.diagnostic.Logger; |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.util.text.StringUtil; |
| import com.intellij.psi.*; |
| import com.intellij.psi.codeStyle.JavaCodeStyleManager; |
| import com.intellij.psi.util.TypeConversionUtil; |
| import com.intellij.refactoring.RefactoringBundle; |
| import com.intellij.refactoring.changeSignature.ChangeSignatureProcessor; |
| import com.intellij.refactoring.changeSignature.JavaChangeSignatureDialog; |
| import com.intellij.refactoring.changeSignature.ParameterInfoImpl; |
| import com.intellij.refactoring.util.RefactoringUIUtil; |
| import com.intellij.usageView.UsageViewUtil; |
| import com.intellij.util.IncorrectOperationException; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.util.ArrayList; |
| |
| public class VariableTypeFix extends LocalQuickFixAndIntentionActionOnPsiElement { |
| static final Logger LOG = Logger.getInstance("#com.intellij.codeInsight.daemon.impl.quickfix.VariableTypeFix"); |
| |
| private final PsiType myReturnType; |
| protected final String myName; |
| |
| public VariableTypeFix(@NotNull PsiVariable variable, PsiType toReturn) { |
| super(variable); |
| myReturnType = GenericsUtil.getVariableTypeByExpressionType(toReturn); |
| myName = variable.getName(); |
| } |
| |
| @NotNull |
| @Override |
| public String getText() { |
| return QuickFixBundle.message("fix.variable.type.text", |
| UsageViewUtil.getType(getStartElement()), |
| myName, |
| getReturnType().getCanonicalText()); |
| } |
| |
| @Override |
| @NotNull |
| public String getFamilyName() { |
| return QuickFixBundle.message("fix.variable.type.family"); |
| } |
| |
| @Override |
| public boolean isAvailable(@NotNull Project project, |
| @NotNull PsiFile file, |
| @NotNull PsiElement startElement, |
| @NotNull PsiElement endElement) { |
| final PsiVariable myVariable = (PsiVariable)startElement; |
| return myVariable.isValid() |
| && myVariable.getTypeElement() != null |
| && myVariable.getManager().isInProject(myVariable) |
| && getReturnType() != null |
| && getReturnType().isValid() |
| && !TypeConversionUtil.isNullType(getReturnType()) |
| && !TypeConversionUtil.isVoidType(getReturnType()); |
| } |
| |
| @Override |
| public void invoke(@NotNull Project project, |
| @NotNull PsiFile file, |
| @Nullable("is null when called from inspection") Editor editor, |
| @NotNull PsiElement startElement, |
| @NotNull PsiElement endElement) { |
| final PsiVariable myVariable = (PsiVariable)startElement; |
| if (changeMethodSignatureIfNeeded(myVariable)) return; |
| if (!FileModificationService.getInstance().prepareFileForWrite(myVariable.getContainingFile())) return; |
| try { |
| myVariable.normalizeDeclaration(); |
| final PsiTypeElement typeElement = myVariable.getTypeElement(); |
| LOG.assertTrue(typeElement != null, myVariable.getClass()); |
| final PsiTypeElement newTypeElement = JavaPsiFacade.getInstance(file.getProject()).getElementFactory().createTypeElement(getReturnType()); |
| typeElement.replace(newTypeElement); |
| JavaCodeStyleManager.getInstance(project).shortenClassReferences(myVariable); |
| UndoUtil.markPsiFileForUndo(file); |
| } catch (IncorrectOperationException e) { |
| LOG.error(e); |
| } |
| } |
| |
| private boolean changeMethodSignatureIfNeeded(PsiVariable myVariable) { |
| if (myVariable instanceof PsiParameter) { |
| final PsiElement scope = ((PsiParameter)myVariable).getDeclarationScope(); |
| if (scope instanceof PsiMethod) { |
| final PsiMethod method = (PsiMethod)scope; |
| final PsiMethod psiMethod = SuperMethodWarningUtil.checkSuperMethod(method, RefactoringBundle.message("to.refactor")); |
| if (psiMethod == null) return true; |
| final int parameterIndex = method.getParameterList().getParameterIndex((PsiParameter)myVariable); |
| if (!FileModificationService.getInstance().prepareFileForWrite(psiMethod.getContainingFile())) return true; |
| final ArrayList<ParameterInfoImpl> infos = new ArrayList<ParameterInfoImpl>(); |
| int i = 0; |
| for (PsiParameter parameter : psiMethod.getParameterList().getParameters()) { |
| final boolean changeType = i == parameterIndex; |
| infos.add(new ParameterInfoImpl(i++, parameter.getName(), changeType ? getReturnType() : parameter.getType())); |
| } |
| |
| if (!ApplicationManager.getApplication().isUnitTestMode()) { |
| final JavaChangeSignatureDialog dialog = new JavaChangeSignatureDialog(psiMethod.getProject(), psiMethod, false, myVariable); |
| dialog.setParameterInfos(infos); |
| dialog.show(); |
| } |
| else { |
| ChangeSignatureProcessor processor = new ChangeSignatureProcessor(psiMethod.getProject(), |
| psiMethod, |
| false, null, |
| psiMethod.getName(), |
| psiMethod.getReturnType(), |
| infos.toArray(new ParameterInfoImpl[infos.size()])); |
| processor.run(); |
| } |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| protected PsiType getReturnType() { |
| return myReturnType; |
| } |
| } |