Reviewed By: sblackshear Differential Revision: D6424928 fbshipit-source-id: d3a1735master
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/*
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* Copyright (c) 2017 - present Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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import com.facebook.infer.annotation.ThreadSafe;
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@ThreadSafe
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class DeepOwnership {
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DeepOwnership next;
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static DeepOwnership global;
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void globalNotOwnedBad() {
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global.next = null;
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}
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void reassignBaseToGlobalBad(){
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DeepOwnership x = new DeepOwnership();
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x = global;
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x.next = null;
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}
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void FN_reassignPathToGlobalBad() {
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DeepOwnership x = new DeepOwnership();
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x.next = global;
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x.next.next = null;
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}
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void deepIntraOk(){
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DeepOwnership x = new DeepOwnership();
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x.next.next = null; // doesn't warn here
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}
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void deepInterOk(){
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DeepOwnership x = new DeepOwnership();
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deepPrivate(x.next);
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}
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private void deepPrivate(DeepOwnership y){
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y.next = null;
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}
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DeepOwnership deepFromOwnedThisOk(){
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return new DeepOwnership();
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}
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DeepOwnership arr[];
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DeepOwnership(){
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next.next = null;
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arr[0] = null;
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}
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private void loseOwnershipOfNext() {
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synchronized (this) {
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this.next = global;
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}
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}
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void FN_loseOwnershipInCalleeBad() {
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DeepOwnership x = new DeepOwnership();
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x.next = new DeepOwnership();
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loseOwnershipOfNext();
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x.next.next = null; // doesn't warn here
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}
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}
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@ -1,34 +0,0 @@
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/*
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* Copyright (c) 2017 - present Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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import com.facebook.infer.annotation.ThreadSafe;
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@ThreadSafe
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class ShallowOwnership {
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ShallowOwnership next;
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static ShallowOwnership global;
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void globalNotOwnedBad() {
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global.next = null;
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}
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void reassignBaseToGlobalBad(){
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ShallowOwnership x = new ShallowOwnership();
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x = global;
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x.next = null;
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}
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void reassignPathToGlobalBad() {
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ShallowOwnership x = new ShallowOwnership();
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x.next = global;
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x.next.next = null;
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}
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}
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