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/*
* Copyright 2000-2011 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.changeSignature;
import com.intellij.openapi.util.TextRange;
import com.intellij.openapi.util.text.StringUtil;
import com.intellij.psi.*;
import org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.NotNull;
/**
* @author Konstantin Bulenkov
*/
public class JavaMethodSignatureEditor extends MethodSignatureEditor<PsiMethod> {
public JavaMethodSignatureEditor(@NotNull PsiMethod method) {
super(method, PsiMethod.class);
}
@Override
public TextRange getSignatureTextRange() {
final PsiMethod method = getMethod();
final TextRange methodTextRange = method.getTextRange();
final TextRange paramsRange = method.getParameterList().getTextRange();
return TextRange.create(methodTextRange.getStartOffset(), paramsRange.getEndOffset());
}
@Override
protected void indexParameters(PsiMethod method, @NotNull ParameterIndexer indexer) {
final PsiParameter[] parameters = method.getParameterList().getParameters();
for (int i = 0; i < parameters.length; i++) {
indexer.setIndex(parameters[i], i);
}
}
@Override
protected String formatMethod() {
@NonNls StringBuilder buffer = new StringBuilder();
PsiMethod method = getMethod();
PsiModifierList modifierList = method.getModifierList();
String modifiers = modifierList.getText();
buffer.append(modifiers);
if (modifiers.length() > 0 &&
!StringUtil.endsWithChar(modifiers, '\n') &&
!StringUtil.endsWithChar(modifiers, '\r') &&
!StringUtil.endsWithChar(modifiers, ' ')) {
buffer.append(" ");
}
if (!method.isConstructor()) {
final PsiType returnType = method.getReturnType();
if (returnType != null) {
buffer.append(returnType.getPresentableText());
}
buffer.append(" ");
}
buffer.append(method.getName());
buffer.append("(");
final String indent = " ";
PsiParameter[] items = method.getParameterList().getParameters();
for (int i = 0; i < items.length; i++) {
PsiParameter item = items[i];
if (i > 0) {
buffer.append(",");
}
buffer.append("\n");
buffer.append(indent);
buffer.append(item.getTypeElement().getType().getPresentableText());
buffer.append(" ");
buffer.append(item.getName());
}
if (items.length != 0) {
buffer.append("\n");
}
buffer.append(")");
PsiClassType[] thrownExceptionsFragments = method.getThrowsList().getReferencedTypes();
if (thrownExceptionsFragments.length > 0) {
buffer.append("\n");
buffer.append("throws\n");
for (int i = 0; i < thrownExceptionsFragments.length; i++) {
String text = thrownExceptionsFragments[i].getPresentableText();
buffer.append(indent);
buffer.append(text);
if (i < thrownExceptionsFragments.length - 1) {
buffer.append(",");
buffer.append("\n");
}
}
}
return buffer.toString();
}
}
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