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/*
* Copyright 2000-2009 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.ExpectedTypeInfo;
import com.intellij.codeInsight.FileModificationService;
import com.intellij.codeInsight.daemon.QuickFixBundle;
import com.intellij.codeInspection.LocalQuickFixAndIntentionActionOnPsiElement;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.Pair;
import com.intellij.psi.*;
import com.intellij.psi.codeStyle.JavaCodeStyleManager;
import com.intellij.psi.util.PsiFormatUtil;
import com.intellij.psi.util.PsiFormatUtilBase;
import com.intellij.util.Function;
import com.intellij.util.IncorrectOperationException;
import com.intellij.util.containers.ContainerUtil;
import org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.util.List;
public class CreateMethodQuickFix extends LocalQuickFixAndIntentionActionOnPsiElement {
protected final String mySignature;
protected final String myBody;
private CreateMethodQuickFix(final PsiClass targetClass, @NonNls final String signature, @NonNls final String body) {
super(targetClass);
mySignature = signature;
myBody = body;
}
@Override
@NotNull
public String getText() {
PsiClass myTargetClass = (PsiClass)getStartElement();
String signature = myTargetClass == null ? "" :
PsiFormatUtil.formatMethod(createMethod(myTargetClass), PsiSubstitutor.EMPTY,
PsiFormatUtilBase.SHOW_NAME |
PsiFormatUtilBase.SHOW_TYPE |
PsiFormatUtilBase.SHOW_PARAMETERS |
PsiFormatUtilBase.SHOW_RAW_TYPE,
PsiFormatUtilBase.SHOW_TYPE | PsiFormatUtilBase.SHOW_RAW_TYPE, 2);
return QuickFixBundle.message("create.method.from.usage.text", signature);
}
@Override
@NotNull
public String getFamilyName() {
return QuickFixBundle.message("create.method.from.usage.family");
}
@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) {
PsiClass myTargetClass = (PsiClass)startElement;
if (!FileModificationService.getInstance().preparePsiElementForWrite(myTargetClass.getContainingFile())) return;
PsiMethod method = createMethod(myTargetClass);
List<Pair<PsiExpression, PsiType>> arguments =
ContainerUtil.map2List(method.getParameterList().getParameters(), new Function<PsiParameter, Pair<PsiExpression, PsiType>>() {
@Override
public Pair<PsiExpression, PsiType> fun(PsiParameter psiParameter) {
return Pair.create(null, psiParameter.getType());
}
});
method = (PsiMethod)JavaCodeStyleManager.getInstance(project).shortenClassReferences(myTargetClass.add(method));
CreateMethodFromUsageFix.doCreate(myTargetClass, method, arguments, PsiSubstitutor.EMPTY, ExpectedTypeInfo.EMPTY_ARRAY, method);
}
private PsiMethod createMethod(@NotNull PsiClass myTargetClass) {
Project project = myTargetClass.getProject();
JVMElementFactory elementFactory = JVMElementFactories.getFactory(myTargetClass.getLanguage(), project);
if (elementFactory == null) {
elementFactory = JavaPsiFacade.getElementFactory(project);
}
String methodText = mySignature + (myTargetClass.isInterface() ? ";" : "{" + myBody + "}");
return elementFactory.createMethodFromText(methodText, null);
}
@Nullable
public static CreateMethodQuickFix createFix(@NotNull PsiClass targetClass, @NonNls final String signature, @NonNls final String body) {
CreateMethodQuickFix fix = new CreateMethodQuickFix(targetClass, signature, body);
try {
fix.createMethod(targetClass);
return fix;
}
catch (IncorrectOperationException e) {
return null;
}
}
}
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