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/*
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
package codetoanalyze.java.checkers;
import android.support.v4.app.FragmentActivity;
import android.view.View;
import android.widget.ImageView;
import com.facebook.infer.annotation.Expensive;
import com.facebook.infer.annotation.PerformanceCritical;
import javax.annotation.Nullable;
interface AnnotatedInterface {
@PerformanceCritical
void annotatedPerformanceCriticalInInterface();
}
class Other {
@Expensive
void expensive() {}
void callsExpensive1() {
expensive();
}
void inexpensiveMethod() {}
}
@Expensive
class ExpensiveClass {
void anExpensiveMethod() {}
}
@PerformanceCritical
class PerformanceCriticalClass {
void performanceCriticalMethod1(ExpensiveClass c) {
c.anExpensiveMethod(); // should report
}
void performanceCriticalMethod2(Other o) {
o.expensive(); // should report
}
void performanceCriticalMethod3(Other o) {
o.callsExpensive1(); // should report
}
void performanceCriticalMethod4(Other o) {
o.inexpensiveMethod(); // should not report
}
}
class ExpensiveSubclass extends ExpensiveClass {
void anotherExpensiveMethod() {}
}
class PerformanceCriticalSubclass extends PerformanceCriticalClass {
void subclassPerformanceCriticalMethod1(ExpensiveClass c) {
c.anExpensiveMethod(); // should report
}
void subclassPerformanceCriticalMethod2(ExpensiveSubclass c) {
c.anotherExpensiveMethod(); // should report
}
void subclassPerformanceCriticalMethod3(Other o) {
o.callsExpensive1(); // should report;
}
void subclassPerformanceCriticalMethod4(Other o) {
o.inexpensiveMethod(); // should not report;
}
}
public class ExpensiveCallExample implements AnnotatedInterface {
@Nullable Other mOther;
void nonExpensiveMethod() {}
@Expensive
void expensiveMethod() {
// The checker should still report the expensive call stack despite the call cycle
methodWrapper();
}
void methodWrapper() {
expensiveMethod();
}
@PerformanceCritical
void notCallingExpensiveMethod() {
nonExpensiveMethod();
}
@PerformanceCritical
void directlyCallingExpensiveMethod() {
expensiveMethod();
}
@PerformanceCritical
void indirectlyCallingExpensiveMethod() {
methodWrapper();
}
@PerformanceCritical
void callingExpensiveMethodFromInterface(ExpensiveInterfaceExample object) {
object.m5();
}
void callsExpensive2() {
mOther.callsExpensive1();
}
@PerformanceCritical
void longerCallStackToExpensive() {
callsExpensive2();
}
@PerformanceCritical
View callsFindViewByIdFromView(ImageView view, int id) {
return view.findViewById(id);
}
@PerformanceCritical
View callsFindViewByIdFromActivity(FragmentActivity activity, int id) {
return activity.findViewById(id);
}
@PerformanceCritical
void callMethodOnExpensiveClass(ExpensiveClass c) {
c.anExpensiveMethod();
}
public void annotatedPerformanceCriticalInInterface() {
mOther.callsExpensive1();
}
@PerformanceCritical
void callExpensiveMethodWithUnlikely() {
if (Branch.unlikely(mOther != null)) {
mOther.callsExpensive1();
}
}
@PerformanceCritical
void onlyOneExpensiveCallUsingUnlikely() {
if (Branch.unlikely(mOther != null)) {
mOther.callsExpensive1();
}
expensiveMethod();
}
@PerformanceCritical
void callsExpensiveInTheUnlikelyElseBranch() {
if (Branch.unlikely(mOther != null)) {
// Do nothing
} else {
expensiveMethod();
}
}
native boolean test();
@PerformanceCritical
void callsExpensiveWithDisjunctionAfterUnlikely() {
if (Branch.unlikely(mOther != null) || test()) {
expensiveMethod();
}
}
@PerformanceCritical
void callsExpensiveWithUnlikelyInLocalVariable() {
boolean b = Branch.unlikely(mOther != null);
if (b) {
expensiveMethod();
}
}
@PerformanceCritical
void callsExpensiveWithOverriddenUnlikelyCondition() {
boolean b = Branch.unlikely(mOther != null);
b = test();
if (b) {
expensiveMethod();
}
}
@PerformanceCritical
void callsExpensiveInConditionalBranch() {
if (test()) {
expensiveMethod();
}
}
}