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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.classlayout;
import com.intellij.psi.PsiAnonymousClass;
import com.intellij.psi.PsiClass;
import com.intellij.psi.PsiTypeParameter;
import com.siyeh.InspectionGadgetsBundle;
import com.siyeh.ig.BaseInspection;
import com.siyeh.ig.BaseInspectionVisitor;
import org.jetbrains.annotations.NotNull;
public class InnerClassOnInterfaceInspectionBase extends BaseInspection {
/**
* @noinspection PublicField
*/
public boolean m_ignoreInnerInterfaces = false;
@Override
@NotNull
public String getID() {
return "InnerClassOfInterface";
}
@Override
@NotNull
public String getDisplayName() {
return InspectionGadgetsBundle.message(
"inner.class.on.interface.display.name");
}
@Override
@NotNull
public String buildErrorString(Object... infos) {
final PsiClass parentInterface = (PsiClass)infos[0];
final String interfaceName = parentInterface.getName();
return InspectionGadgetsBundle.message(
"inner.class.on.interface.problem.descriptor", interfaceName);
}
@Override
protected boolean buildQuickFixesOnlyForOnTheFlyErrors() {
return true;
}
@Override
public BaseInspectionVisitor buildVisitor() {
return new InnerClassOnInterfaceVisitor();
}
private class InnerClassOnInterfaceVisitor extends BaseInspectionVisitor {
@Override
public void visitClass(@NotNull PsiClass aClass) {
// no call to super, so that it doesn't drill down to inner classes
if (!aClass.isInterface() || aClass.isAnnotationType()) {
return;
}
final PsiClass[] innerClasses = aClass.getInnerClasses();
for (final PsiClass innerClass : innerClasses) {
if (isInnerClass(innerClass)) {
registerClassError(innerClass, aClass);
}
}
}
private boolean isInnerClass(PsiClass innerClass) {
if (innerClass.isEnum()) {
return false;
}
if (innerClass.isAnnotationType()) {
return false;
}
if (innerClass instanceof PsiTypeParameter ||
innerClass instanceof PsiAnonymousClass) {
return false;
}
return !(innerClass.isInterface() && m_ignoreInnerInterfaces);
}
}
}
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