| /* |
| * 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.refactoring.util.duplicates; |
| |
| import com.intellij.codeInsight.PsiEquivalenceUtil; |
| import com.intellij.psi.*; |
| import com.intellij.psi.util.PsiFormatUtil; |
| import com.intellij.refactoring.changeSignature.ChangeSignatureProcessor; |
| import com.intellij.refactoring.changeSignature.ParameterInfoImpl; |
| import org.jetbrains.annotations.NonNls; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Map; |
| |
| public class MatchUtil { |
| @Nullable |
| public static String getChangedSignature(Match match, final PsiMethod method, final boolean shouldBeStatic, String visibility) { |
| final PsiType returnType = match.getChangedReturnType(method); |
| if (!match.myChangedParams.isEmpty() || returnType != null) { |
| @NonNls StringBuilder buffer = new StringBuilder(); |
| buffer.append(visibility); |
| if (buffer.length() > 0) { |
| buffer.append(" "); |
| } |
| if (shouldBeStatic) { |
| buffer.append("static "); |
| } |
| final PsiTypeParameterList typeParameterList = method.getTypeParameterList(); |
| if (typeParameterList != null) { |
| buffer.append(typeParameterList.getText()); |
| buffer.append(" "); |
| } |
| |
| buffer.append(PsiFormatUtil.formatType(returnType != null ? returnType : method.getReturnType(), 0, PsiSubstitutor.EMPTY)); |
| buffer.append(" "); |
| buffer.append(method.getName()); |
| buffer.append("("); |
| int count = 0; |
| final String INDENT = " "; |
| final List<ParameterInfoImpl> params = patchParams(match.myChangedParams, method); |
| for (ParameterInfoImpl param : params) { |
| String typeText = param.getTypeText(); |
| if (count > 0) { |
| buffer.append(","); |
| } |
| buffer.append("\n"); |
| buffer.append(INDENT); |
| buffer.append(typeText); |
| buffer.append(" "); |
| buffer.append(param.getName()); |
| count++; |
| } |
| |
| if (count > 0) { |
| buffer.append("\n"); |
| } |
| buffer.append(")"); |
| final PsiClassType[] exceptions = method.getThrowsList().getReferencedTypes(); |
| if (exceptions.length > 0) { |
| buffer.append("\n"); |
| buffer.append("throws\n"); |
| for (PsiType exception : exceptions) { |
| buffer.append(INDENT); |
| buffer.append(PsiFormatUtil.formatType(exception, 0, PsiSubstitutor.EMPTY)); |
| buffer.append("\n"); |
| } |
| } |
| return buffer.toString(); |
| } |
| return null; |
| } |
| |
| public static void changeSignature(@NotNull Match match, @NotNull PsiMethod psiMethod) { |
| final PsiType expressionType = match.getChangedReturnType(psiMethod); |
| if (expressionType == null && match.myChangedParams.isEmpty()) return; |
| final List<ParameterInfoImpl> newParameters = patchParams(match.myChangedParams, psiMethod); |
| final ChangeSignatureProcessor csp = new ChangeSignatureProcessor(psiMethod.getProject(), psiMethod, false, null, psiMethod.getName(), |
| expressionType != null ? expressionType : psiMethod.getReturnType(), |
| newParameters.toArray(new ParameterInfoImpl[newParameters.size()])); |
| |
| csp.run(); |
| } |
| |
| public static List<ParameterInfoImpl> patchParams(Map<PsiVariable, PsiType> changedParams, final PsiMethod psiMethod) { |
| final ArrayList<ParameterInfoImpl> newParameters = new ArrayList<ParameterInfoImpl>(); |
| final PsiParameter[] oldParameters = psiMethod.getParameterList().getParameters(); |
| for (int i = 0; i < oldParameters.length; i++) { |
| final PsiParameter oldParameter = oldParameters[i]; |
| PsiType type = oldParameter.getType(); |
| for (PsiVariable variable : changedParams.keySet()) { |
| if (PsiEquivalenceUtil.areElementsEquivalent(variable, oldParameter)) { |
| type = changedParams.get(variable); |
| break; |
| } |
| } |
| newParameters.add(new ParameterInfoImpl(i, oldParameter.getName(), type)); |
| } |
| return newParameters; |
| } |
| } |