| /* |
| * 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.codeInspection.varScopeCanBeNarrowed; |
| |
| import com.intellij.codeInspection.ProblemDescriptor; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.psi.*; |
| import com.intellij.refactoring.changeSignature.ChangeSignatureProcessor; |
| import com.intellij.refactoring.changeSignature.ParameterInfoImpl; |
| import com.intellij.usageView.UsageInfo; |
| import com.intellij.util.NotNullFunction; |
| import com.intellij.util.VisibilityUtil; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.List; |
| |
| /** |
| * @author Danila Ponomarenko |
| */ |
| public class ParameterCanBeLocalInspection extends ParameterCanBeLocalInspectionBase { |
| @Override |
| protected ConvertParameterToLocalQuickFix createFix() { |
| return new ConvertParameterToLocalQuickFix(); |
| } |
| |
| public static class ConvertParameterToLocalQuickFix extends BaseConvertToLocalQuickFix<PsiParameter> { |
| @Override |
| protected PsiParameter getVariable(@NotNull ProblemDescriptor descriptor) { |
| return (PsiParameter)descriptor.getPsiElement().getParent(); |
| } |
| |
| @Override |
| protected PsiElement applyChanges(@NotNull final Project project, |
| @NotNull final String localName, |
| @Nullable final PsiExpression initializer, |
| @NotNull final PsiParameter parameter, |
| @NotNull final Collection<PsiReference> references, |
| boolean delete, |
| @NotNull final NotNullFunction<PsiDeclarationStatement, PsiElement> action) { |
| final PsiElement scope = parameter.getDeclarationScope(); |
| if (scope instanceof PsiMethod) { |
| final PsiMethod method = (PsiMethod)scope; |
| final PsiParameter[] parameters = method.getParameterList().getParameters(); |
| |
| final List<ParameterInfoImpl> info = new ArrayList<ParameterInfoImpl>(); |
| for (int i = 0; i < parameters.length; i++) { |
| PsiParameter psiParameter = parameters[i]; |
| if (psiParameter == parameter) continue; |
| info.add(new ParameterInfoImpl(i, psiParameter.getName(), psiParameter.getType())); |
| } |
| final ParameterInfoImpl[] newParams = info.toArray(new ParameterInfoImpl[info.size()]); |
| final String visibilityModifier = VisibilityUtil.getVisibilityModifier(method.getModifierList()); |
| final ChangeSignatureProcessor cp = new ChangeSignatureProcessor(project, method, false, visibilityModifier, |
| method.getName(), method.getReturnType(), newParams) { |
| @Override |
| protected void performRefactoring(UsageInfo[] usages) { |
| final PsiElementFactory elementFactory = JavaPsiFacade.getElementFactory(project); |
| final PsiElement newDeclaration = moveDeclaration(elementFactory, localName, parameter, initializer, action, references); |
| super.performRefactoring(usages); |
| positionCaretToDeclaration(project, newDeclaration.getContainingFile(), newDeclaration); |
| } |
| }; |
| cp.run(); |
| } |
| return null; |
| } |
| |
| @NotNull |
| @Override |
| protected String suggestLocalName(@NotNull Project project, @NotNull PsiParameter parameter, @NotNull PsiCodeBlock scope) { |
| return parameter.getName(); |
| } |
| } |
| } |