/*
* Copyright 2016 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;
import com.google.errorprone.annotations.MustBeClosed;
public class MustBeClosedCheckerPositiveCases {
class DoesNotImplementAutoCloseable {
@MustBeClosed
// BUG: Diagnostic contains: MustBeClosed should only annotate constructors of AutoCloseables.
DoesNotImplementAutoCloseable() {}
@MustBeClosed
// BUG: Diagnostic contains: MustBeClosed should only annotate methods that return an
// AutoCloseable.
void doesNotReturnAutoCloseable() {}
}
class Closeable implements AutoCloseable {
@Override
public void close() {}
}
class Foo {
@MustBeClosed
Closeable mustBeClosedAnnotatedMethod() {
return new Closeable();
}
void sameClass() {
// BUG: Diagnostic contains:
mustBeClosedAnnotatedMethod();
}
}
class MustBeClosedAnnotatedConstructor extends Closeable {
@MustBeClosed
MustBeClosedAnnotatedConstructor() {}
void sameClass() {
// BUG: Diagnostic contains:
new MustBeClosedAnnotatedConstructor();
}
}
static interface Lambda {
Closeable expression();
}
void positiveCase1() {
// BUG: Diagnostic contains:
new Foo().mustBeClosedAnnotatedMethod();
}
void positiveCase2() {
// BUG: Diagnostic contains:
Closeable closeable = new Foo().mustBeClosedAnnotatedMethod();
}
void positiveCase3() {
try {
// BUG: Diagnostic contains:
new Foo().mustBeClosedAnnotatedMethod();
} finally {
}
}
void positiveCase4() {
try (Closeable closeable = new Foo().mustBeClosedAnnotatedMethod()) {
// BUG: Diagnostic contains:
new Foo().mustBeClosedAnnotatedMethod();
}
}
void positiveCase5() {
// BUG: Diagnostic contains:
new MustBeClosedAnnotatedConstructor();
}
Closeable positiveCase6() {
// BUG: Diagnostic contains:
return new MustBeClosedAnnotatedConstructor();
}
Closeable positiveCase7() {
// BUG: Diagnostic contains:
return new Foo().mustBeClosedAnnotatedMethod();
}
void positiveCase8() {
Lambda expression =
() -> {
// BUG: Diagnostic contains:
return new Foo().mustBeClosedAnnotatedMethod();
};
}
void positiveCase9() {
new Foo() {
@Override
public Closeable mustBeClosedAnnotatedMethod() {
// BUG: Diagnostic contains:
return new MustBeClosedAnnotatedConstructor();
}
};
}
void tryWithResources_nonFinal() {
Foo foo = new Foo();
// BUG: Diagnostic contains:
Closeable closeable = foo.mustBeClosedAnnotatedMethod();
try {
closeable = null;
} finally {
closeable.close();
}
}
void tryWithResources_noClose() {
Foo foo = new Foo();
// BUG: Diagnostic contains:
Closeable closeable = foo.mustBeClosedAnnotatedMethod();
try {
} finally {
}
}
}