程序包 proguard.evaluation.executor

类 ReflectionExecutor

java.lang.Object

proguard.evaluation.executor.ReflectionExecutor

所有已实现的接口:

Executor

直接已知子类:

StringReflectionExecutor

public abstract class ReflectionExecutor
extends java.lang.Object
implements Executor

This Executor provides an implementation for Executor.getMethodResult(proguard.evaluation.executor.MethodExecutionInfo, proguard.evaluation.ValueCalculator) which tries to resolve the method at runtime and execute it using Java's reflection API java.lang.reflect.

嵌套类概要

嵌套类

修饰符和类型	类	说明
static class	ReflectionExecutor.InstanceCopyResult

从接口继承的嵌套类/接口 proguard.evaluation.executor.Executor

Executor.Builder<T extends Executor>

构造器概要

构造器

构造器	说明
ReflectionExecutor()

方法概要

修饰符和类型	方法	说明
protected abstract ExecutorInstanceHandler	getDefaultInstanceHandler()	Provides a default instance handler used by the executor in case the reflective execution fails.
protected abstract java.util.Optional<ReflectionExecutor.InstanceCopyResult>	getInstanceOrCopyIfMutable(ReferenceValue instanceValue)	Get an object which will act as the calling instance.
MethodResult	getMethodResult(MethodExecutionInfo methodExecutionInfo, ValueCalculator valueCalculator)	Calculate the result of a given method.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

从接口继承的方法 proguard.evaluation.executor.Executor

getSupportedMethodSignatures

构造器详细资料

ReflectionExecutor

public ReflectionExecutor()

方法详细资料

getMethodResult

public MethodResult getMethodResult(MethodExecutionInfo methodExecutionInfo,
                                    ValueCalculator valueCalculator)

从接口复制的说明: Executor

Calculate the result of a given method. This is the return value for a non-constructor method (null if it returns void) and the instantiated object for a constructor.

指定者:

getMethodResult 在接口中 Executor

参数:

methodExecutionInfo - Information about the called method.

valueCalculator - a function mapping the result of a method invocation (can be an Object with the result if the executor calculates a real value or a Model) to the appropriate Value used by the analysis. Should also be used to create values of unknown value since the executor might be able to provide additional information on them even if the value itself is not known (e.g., on the identifier of the returned value).

返回:

The result of the method call, including information on the returned value or values or arguments on which side effects happened during the method execution. If the executor is not able to provide any additional information for any reason the returned value should be MethodResult.invalidResult(), so that the caller can know that execution failed and just provide its best approximation of the result.

getInstanceOrCopyIfMutable

protected abstract java.util.Optional<ReflectionExecutor.InstanceCopyResult> getInstanceOrCopyIfMutable(ReferenceValue instanceValue)

Get an object which will act as the calling instance. If we know that executing the method does not modify the instance this can just be the same value. Otherwise, a copy should be returned in order to not change the reference whose state may be of interest at the end of an analysis.

参数:

instanceValue - The ReferenceValue of the instance.

返回:

The new calling instance.

getDefaultInstanceHandler

protected abstract ExecutorInstanceHandler getDefaultInstanceHandler()

Provides a default instance handler used by the executor in case the reflective execution fails.

The handler carries information on whether a method returns the same object as its instance.

返回:

the default instance handler.