/*
* Copyright 2012 Google Inc. All Rights Reserved.
*
* 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.google.errorprone.bugpatterns.testdata;
/**
* @author alexloh@google.com (Alex Loh)
*/
public class ClassCanBeStaticNegativeCases {
int outerVar;
public int outerMethod() {
return 0;
}
public static class Inner1 { // inner class already static
int innerVar;
}
public class Inner2 { // inner class references an outer variable
int innerVar = outerVar;
}
public class Inner3 { // inner class references an outer variable in a method
int localMethod() {
return outerVar;
}
}
public class Inner4 { // inner class references an outer method in a method
int localMethod() {
return outerMethod();
}
}
// outer class is a nested but non-static, and thus cannot have a static class
class NonStaticOuter {
int nonStaticVar = outerVar;
class Inner5 {
}
}
// inner class is local and thus cannot be static
void foo() {
class Inner6 {
}
}
// inner class is anonymous and thus cannot be static
Object bar() {
return new Object() {
};
}
// enums are already static
enum Inner7 {
RED,
BLUE,
VIOLET,
}
// outer class is a nested but non-static, and thus cannot have a static class
void baz() {
class NonStaticOuter2 {
int nonStaticVar = outerVar;
class Inner8 {
}
}
}
// inner class references a method from inheritance
public static interface OuterInter {
int outerInterMethod();
}
abstract static class AbstractOuter implements OuterInter {
class Inner8 {
int localMethod() {
return outerInterMethod();
}
}
}
}