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SelfAssignmentNegativeCases.java
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SelfAssignmentNegativeCases.java
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/*
* Copyright 2011 The Error Prone Authors.
*
* 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;
import static com.google.common.base.Preconditions.checkNotNull;
import static java.util.Objects.requireNonNull;
/**
* Tests for self assignment
*
* @author eaftan@google.com (Eddie Aftandilian)
*/
public class SelfAssignmentNegativeCases {
private int a;
private static int b = StaticClass.b;
private static final int C = SelfAssignmentNegativeCases.b;
private static final int D = checkNotNull(SelfAssignmentNegativeCases.C);
private static final int E = requireNonNull(SelfAssignmentNegativeCases.D);
private static final int F = StaticClass.getIntArr().length;
public void test1(int a) {
int b = SelfAssignmentNegativeCases.b;
this.a = a;
this.a = checkNotNull(a);
this.a = requireNonNull(a);
}
public void test2() {
int a = 0;
int b = a;
a = b;
}
public void test3() {
int a = 10;
}
public void test4() {
int i = 1;
i += i;
}
public void test5(SelfAssignmentNegativeCases n) {
a = n.a;
}
public void test6() {
Foo foo = new Foo();
Bar bar = new Bar();
foo.a = bar.a;
foo.a = checkNotNull(bar.a);
foo.a = requireNonNull(bar.a);
}
public void test7() {
Foobar f1 = new Foobar();
f1.foo = new Foo();
f1.bar = new Bar();
f1.foo.a = f1.bar.a;
f1.foo.a = checkNotNull(f1.bar.a);
f1.foo.a = requireNonNull(f1.bar.a);
}
public void test8(SelfAssignmentNegativeCases that) {
this.a = that.a;
this.a = checkNotNull(that.a);
this.a = requireNonNull(that.a);
}
private static class Foo {
int a;
}
private static class Bar {
int a;
}
private static class Foobar {
Foo foo;
Bar bar;
}
private static class StaticClass {
static int b;
public static int[] getIntArr() {
return new int[10];
}
}
}