AspectJ Weaver 1.9.20.1 · org.aspectj.apache.bcel.generic.InstructionBranch

Modifier and Type	Field and Description
protected int	positionOfThisInstruction
protected int	targetIndex
protected InstructionHandle	targetInstruction
private static final int	UNSET

Access	Constructor and Description
public	InstructionBranch(short opcode, InstructionHandle target)
public	InstructionBranch(short opcode, int index)
public	InstructionBranch(short opcode)

Method Summary

Modifier and Type	Method and Description
public boolean	Returns: true, if ih is target of this instruction containsTarget(InstructionHandle ih) Implements org.aspectj.apache.bcel.generic.InstructionTargeter.containsTarget.
pack-priv void	dispose() Overrides org.aspectj.apache.bcel.generic.Instruction.dispose. Inform target that it's not targeted anymore.
public void	dump(DataOutputStream out) Overrides org.aspectj.apache.bcel.generic.Instruction.dump.
public boolean	equals(Object the reference object with which to compare. other) Overrides org.aspectj.apache.bcel.generic.Instruction.equals. Only equal if they are the same branch instruction - otherwise too risky as the targets may only temporarily be pointing at the same destination.
public final int	Returns: target offset in byte code getIndex() Overrides org.aspectj.apache.bcel.generic.Instruction.getIndex.
public InstructionHandle	Returns: target of branch instruction getTarget()
protected int	getTargetOffset()
public Type	getType(ConstantPool cp) Overrides org.aspectj.apache.bcel.generic.Instruction.getType.
public int	hashCode() Overrides org.aspectj.apache.bcel.generic.Instruction.hashCode. Returns a hash code value for the object.
public boolean	isIfInstruction()
pack-priv static final void	notifyTarget(InstructionHandle oldHandle, InstructionHandle newHandle, InstructionTargeter t) Used by BranchInstruction, LocalVariableGen, CodeExceptionGen
public InstructionHandle	Returns: an InstructionHandle to the "next" instruction that will be executed when RETurned from a subroutine. physicalSuccessor() Returns an InstructionHandle to the physical successor of this JsrInstruction.
public void	setTarget(InstructionHandle branch target target) Set branch target
public String	Returns: mnemonic for instruction toString(boolean long/short format switch verbose) Overrides org.aspectj.apache.bcel.generic.Instruction.toString. Long output format:
protected int	Returns: additional offset caused by possible change of this instruction's length updatePosition(int additional offset caused by preceding (variable length) instructions offset, int the maximum offset that may be caused by these instructions max_offset) Called by InstructionList.setPositions when setting the position for every instruction.
public void	updateTarget(InstructionHandle old target oldHandle, InstructionHandle new target newHandle) Implements org.aspectj.apache.bcel.generic.InstructionTargeter.updateTarget. Update the target destination for this instruction.

positionOfThisInstruction	back to summary
protected int positionOfThisInstruction

targetIndex	back to summary
protected int targetIndex

targetInstruction	back to summary
protected InstructionHandle targetInstruction

UNSET	back to summary
private static final int UNSET

InstructionBranch	back to summary
public InstructionBranch(short opcode, InstructionHandle target)

InstructionBranch	back to summary
public InstructionBranch(short opcode, int index)

InstructionBranch	back to summary
public InstructionBranch(short opcode)

Method Detail

containsTarget	back to summary
public boolean containsTarget(InstructionHandle ih) Implements org.aspectj.apache.bcel.generic.InstructionTargeter.containsTarget. Returns:boolean true, if ih is target of this instruction

containsTarget

back to summary

public boolean containsTarget(InstructionHandle ih)

Implements org.aspectj.apache.bcel.generic.InstructionTargeter.containsTarget.

Returns:boolean: true, if ih is target of this instruction

dispose	back to summary
pack-priv void dispose() Overrides org.aspectj.apache.bcel.generic.Instruction.dispose. Inform target that it's not targeted anymore.

dispose

back to summary

pack-priv void dispose()

Overrides org.aspectj.apache.bcel.generic.Instruction.dispose.

Inform target that it's not targeted anymore.

dump	back to summary
public void dump(DataOutputStream out) throws IOException Overrides org.aspectj.apache.bcel.generic.Instruction.dump.

equals back to summary

equals	back to summary
public boolean equals(Object other) Overrides org.aspectj.apache.bcel.generic.Instruction.equals. Only equal if they are the same branch instruction - otherwise too risky as the targets may only temporarily be pointing at the same destination. Parameters other:Object Doc from java.lang.Object.equals. the reference object with which to compare. Returns:boolean Doc from java.lang.Object.equals. `true` if this object is the same as the obj argument; `false` otherwise.

public boolean equals(Object other)

Overrides org.aspectj.apache.bcel.generic.Instruction.equals.

Only equal if they are the same branch instruction - otherwise too risky as the targets may only temporarily be pointing at the same destination.

Parameters

other:Object

Doc from java.lang.Object.equals.

the reference object with which to compare.

Returns:boolean

Doc from java.lang.Object.equals.

true if this object is the same as the obj argument; false otherwise.

getIndex	back to summary
public final int getIndex() Overrides org.aspectj.apache.bcel.generic.Instruction.getIndex. Returns:int target offset in byte code

getIndex

back to summary

public final int getIndex()

Overrides org.aspectj.apache.bcel.generic.Instruction.getIndex.

Returns:int: target offset in byte code

getTarget	back to summary
public InstructionHandle getTarget() Returns:InstructionHandle target of branch instruction

getTargetOffset	back to summary
protected int getTargetOffset()

getType	back to summary
public Type getType(ConstantPool cp) Overrides org.aspectj.apache.bcel.generic.Instruction.getType.

hashCode back to summary

hashCode	back to summary
public int hashCode() Overrides org.aspectj.apache.bcel.generic.Instruction.hashCode. Doc from java.lang.Object.hashCode. Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by `java.util.HashMap`. The general contract of `hashCode` is: Whenever it is invoked on the same object more than once during an execution of a Java application, the `hashCode` method must consistently return the same integer, provided no information used in `equals` comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application. If two objects are equal according to the `equals` method, then calling the `hashCode` method on each of the two objects must produce the same integer result. It is not required that if two objects are unequal according to the `equals` method, then calling the `hashCode` method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables. Returns:int a hash code value for this object.

public int hashCode()

Overrides org.aspectj.apache.bcel.generic.Instruction.hashCode.

Doc from java.lang.Object.hashCode.

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by java.util.HashMap.

The general contract of hashCode is:

Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

Returns:int: a hash code value for this object.

isIfInstruction	back to summary
public boolean isIfInstruction()

notifyTarget	back to summary
pack-priv static final void notifyTarget(InstructionHandle oldHandle, InstructionHandle newHandle, InstructionTargeter t) Used by BranchInstruction, LocalVariableGen, CodeExceptionGen

physicalSuccessor	back to summary
public InstructionHandle physicalSuccessor() Returns an InstructionHandle to the physical successor of this JsrInstruction. For this method to work, this JsrInstruction object must not be shared between multiple InstructionHandle objects! Formally, there must not be InstructionHandle objects i, j where i != j and i.getInstruction() == this == j.getInstruction(). Returns:InstructionHandle an InstructionHandle to the "next" instruction that will be executed when RETurned from a subroutine.

physicalSuccessor

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public InstructionHandle physicalSuccessor()

Returns an InstructionHandle to the physical successor of this JsrInstruction. For this method to work, this JsrInstruction object must not be shared between multiple InstructionHandle objects! Formally, there must not be InstructionHandle objects i, j where i != j and i.getInstruction() == this == j.getInstruction().

Returns:InstructionHandle: an InstructionHandle to the "next" instruction that will be executed when RETurned from a subroutine.

setTarget	back to summary
public void setTarget(InstructionHandle target) Set branch target Parameters target:InstructionHandle branch target

setTarget

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public void setTarget(InstructionHandle target)

Set branch target

Parameters

target:InstructionHandle: branch target

toString	back to summary
public String toString(boolean verbose) Overrides org.aspectj.apache.bcel.generic.Instruction.toString. Long output format: Parameters verbose:boolean long/short format switch Returns:String mnemonic for instruction

toString

back to summary

public String toString(boolean verbose)

Overrides org.aspectj.apache.bcel.generic.Instruction.toString.

Long output format:

Parameters

verbose:boolean: long/short format switch

Returns:String

mnemonic for instruction

updatePosition	back to summary
protected int updatePosition(int offset, int max_offset) Called by InstructionList.setPositions when setting the position for every instruction. In the presence of variable length instructions `setPositions' performs multiple passes over the instruction list to calculate the correct (byte) positions and offsets by calling this function. Parameters offset:int additional offset caused by preceding (variable length) instructions max_offset:int the maximum offset that may be caused by these instructions Returns:int additional offset caused by possible change of this instruction's length

updatePosition

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protected int updatePosition(int offset, int max_offset)

Called by InstructionList.setPositions when setting the position for every instruction. In the presence of variable length instructions `setPositions' performs multiple passes over the instruction list to calculate the correct (byte) positions and offsets by calling this function.

Parameters

offset:int: additional offset caused by preceding (variable length) instructions
max_offset:int: the maximum offset that may be caused by these instructions

Returns:int

additional offset caused by possible change of this instruction's length

updateTarget	back to summary
public void updateTarget(InstructionHandle oldHandle, InstructionHandle newHandle) Implements org.aspectj.apache.bcel.generic.InstructionTargeter.updateTarget. Update the target destination for this instruction. If an oldHandle is provided it is checked to verify that is where the target currently points to before changing it. Parameters oldHandle:InstructionHandle old target newHandle:InstructionHandle new target

updateTarget

back to summary

public void updateTarget(InstructionHandle oldHandle, InstructionHandle newHandle)

Implements org.aspectj.apache.bcel.generic.InstructionTargeter.updateTarget.

Update the target destination for this instruction. If an oldHandle is provided it is checked to verify that is where the target currently points to before changing it.

Parameters

oldHandle:InstructionHandle: old target
newHandle:InstructionHandle: new target

public Class InstructionBranch

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail