com.alibaba.bytekit.asm.location

Class Location

java.lang.Object

com.alibaba.bytekit.asm.location.Location

Direct Known Subclasses:

Location.ExceptionExitLocation, Location.ExitLocation, Location.FieldAccessLocation, Location.InvokeExceptionExitLocation, Location.InvokeLocation, Location.LineLocation, Location.SyncEnterLocation, Location.SyncExitLocation, Location.ThrowLocation

public abstract class Location
extends Object

Specifies a location in a method at which a rule trigger should be inserted

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Location.ExceptionExitLocation location identifying a method exceptional exit trigger point
static class	Location.ExitLocation location identifying a method exit trigger point
static class	Location.FieldAccessLocation location identifying a field access trigger point
static class	Location.InvokeExceptionExitLocation location identifying a method exceptional exit trigger point
static class	Location.InvokeLocation location identifying a method invocation trigger point
static class	Location.LineLocation location identifying a method line trigger point
static class	Location.SyncEnterLocation location identifying a synchronization trigger point
static class	Location.SyncExitLocation location identifying a synchronization trigger point
static class	Location.ThrowLocation location identifying a throw trigger point

Field Summary

Fields

Modifier and Type	Field and Description
static int	ACCESS_READ flag indicating that a field access location refers to field READ operations
static int	ACCESS_WRITE flag indicating that a field access location refers to field WRITE operations

Constructor Summary

Constructors

Constructor and Description
Location(com.alibaba.deps.org.objectweb.asm.tree.AbstractInsnNode insnNode)
Location(com.alibaba.deps.org.objectweb.asm.tree.AbstractInsnNode insnNode, boolean whenComplete)

Method Summary

Modifier and Type	Method and Description
boolean	canChangeByReturn() 标记在这个location，栈上原来的值可以被 callback 函数的return值替换掉
com.alibaba.deps.org.objectweb.asm.tree.AbstractInsnNode	getInsnNode()
abstract LocationType	getLocationType() identify the type of this location
StackSaver	getStackSaver()
boolean	isStackNeedSave()
boolean	isWhenComplete()

Methods inherited from class java.lang.Object

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

Field Detail

ACCESS_READ

public static final int ACCESS_READ

flag indicating that a field access location refers to field READ operations

See Also:

Constant Field Values

ACCESS_WRITE

public static final int ACCESS_WRITE

flag indicating that a field access location refers to field WRITE operations

See Also:

Constant Field Values

Constructor Detail

Location

public Location(com.alibaba.deps.org.objectweb.asm.tree.AbstractInsnNode insnNode)

Location

public Location(com.alibaba.deps.org.objectweb.asm.tree.AbstractInsnNode insnNode,
                boolean whenComplete)

Method Detail

isWhenComplete

public boolean isWhenComplete()

getInsnNode

public com.alibaba.deps.org.objectweb.asm.tree.AbstractInsnNode getInsnNode()

canChangeByReturn

public boolean canChangeByReturn()

标记在这个location，栈上原来的值可以被 callback 函数的return值替换掉

Returns:

isStackNeedSave

public boolean isStackNeedSave()

getStackSaver

public StackSaver getStackSaver()

getLocationType

public abstract LocationType getLocationType()

identify the type of this location

Returns:

the type of this location