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/*
* 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.siyeh.ig.bugs;
import com.intellij.codeInspection.ProblemDescriptor;
import com.intellij.openapi.project.Project;
import com.intellij.psi.*;
import com.siyeh.InspectionGadgetsBundle;
import com.siyeh.ig.BaseInspection;
import com.siyeh.ig.BaseInspectionVisitor;
import com.siyeh.ig.InspectionGadgetsFix;
import org.jetbrains.annotations.Nls;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
/**
* @author Bas Leijdekkers
*/
public class InnerClassReferencedViaSubclassInspection extends BaseInspection {
@Nls
@NotNull
@Override
public String getDisplayName() {
return InspectionGadgetsBundle.message("inner.class.referenced.via.subclass.display.name");
}
@NotNull
@Override
protected String buildErrorString(Object... infos) {
final PsiClass declaringClass = (PsiClass)infos[0];
final PsiClass referencedClass = (PsiClass)infos[1];
return InspectionGadgetsBundle.message("inner.class.referenced.via.subclass.problem.descriptor",
declaringClass.getQualifiedName(), referencedClass.getQualifiedName());
}
@Nullable
@Override
protected InspectionGadgetsFix buildFix(Object... infos) {
return new InnerClassReferencedViaSubclassFix();
}
private static class InnerClassReferencedViaSubclassFix extends InspectionGadgetsFix {
@Override
@NotNull
public String getName() {
return InspectionGadgetsBundle.message("inner.class.referenced.via.subclass.quickfix");
}
@Override
@NotNull
public String getFamilyName() {
return getName();
}
@Override
public void doFix(Project project, ProblemDescriptor descriptor) {
final PsiIdentifier name = (PsiIdentifier)descriptor.getPsiElement();
final PsiJavaCodeReferenceElement reference = (PsiJavaCodeReferenceElement)name.getParent();
final PsiClass aClass = (PsiClass)reference.resolve();
if (aClass == null) {
return;
}
final PsiClass containingClass = aClass.getContainingClass();
if (containingClass == null) {
return;
}
final PsiElementFactory factory = JavaPsiFacade.getElementFactory(reference.getProject());
final PsiJavaCodeReferenceElement newReferenceElement;
if (reference instanceof PsiReferenceExpression) {
newReferenceElement = factory.createReferenceExpression(containingClass);
} else {
newReferenceElement = factory.createClassReferenceElement(containingClass);
}
final PsiElement qualifier = reference.getQualifier();
if (qualifier == null) {
return;
}
qualifier.replace(newReferenceElement);
}
}
@Override
public BaseInspectionVisitor buildVisitor() {
return new InnerClassReferencedViaSubclassVisitor();
}
private static class InnerClassReferencedViaSubclassVisitor extends BaseInspectionVisitor {
@Override
public void visitReferenceElement(PsiJavaCodeReferenceElement reference) {
super.visitReferenceElement(reference);
final PsiElement qualifier = reference.getQualifier();
if (!(qualifier instanceof PsiJavaCodeReferenceElement)) {
return;
}
final PsiJavaCodeReferenceElement qualifierReference = (PsiJavaCodeReferenceElement)qualifier;
final PsiElement qualifierTarget = qualifierReference.resolve();
if (!(qualifierTarget instanceof PsiClass)) {
return;
}
final PsiClass qualifierClass = (PsiClass)qualifierTarget;
final PsiElement target = reference.resolve();
if (!(target instanceof PsiClass)) {
return;
}
final PsiClass aClass = (PsiClass)target;
final PsiClass containingClass = aClass.getContainingClass();
if (containingClass == null) {
return;
}
if (!qualifierClass.isInheritor(containingClass, true)) {
return;
}
final PsiElement identifier = reference.getReferenceNameElement();
if (identifier == null) {
return;
}
registerError(identifier, containingClass, qualifierClass);
}
@Override
public void visitReferenceExpression(PsiReferenceExpression expression) {
visitReferenceElement(expression);
}
}
}
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