com.techtrader.modules.tools.bytecode
Class MethodInstruction

java.lang.Object
  |
  +--com.techtrader.modules.tools.bytecode.Instruction
        |
        +--com.techtrader.modules.tools.bytecode.MethodInstruction

public class MethodInstruction

extends Instruction

Represents an instruction that takes as an argument a method to operate on. Examples include INVOKEINTERFACE, INVOKEVIRTUAL, etc.

Author:

Abe White

Fields inherited from class com.techtrader.modules.tools.bytecode.Instruction

_byteIndex, _opcode, _opcodeTypes, _owner

Constructor Summary

protected

MethodInstruction(Code owner, int opcode)

Method Summary

void	acceptVisit(BCVisitor visit) Accept a visit from a BCVisitor, calling the appropriate methods to notify the visitor that it has entered this entity, and to provide it with the proper callbacks for each sub-entity owned by this object.
protected void	copy(Instruction orig)
boolean	equals(Object other) Method instructions are equal if the method of either is unset, or if they refer to the same method.
int	getLength() Return the length in bytes of this opcode, including all arguments.
BCMethod	getMethod() If the method is a member of the current class, then this method will retrieve the BCMethod object for it; otherwise it will return null.
int	getMethodIndex() Get the index of the ComplexEntry in the constant pool describing the method to operate on.
String	getMethodName() Get the nam of the method to operate on.
Class	getMethodOwnerType() Get the type of the method.
String	getMethodOwnerTypeName() Get the type of the method.
String[]	getMethodParamTypeNames() Get the param types of the method.
Class[]	getMethodParamTypes() Get the param types of the method.
Class	getMethodReturnType() Get the return type of the method.
String	getMethodReturnTypeName() Get the return type of the method.
int	getStackChange() Return the number of stack positions this instruction pushes or pops during its execution.
boolean	isMethodInCurrentClass() Return true if the method is a member of the current class.
protected void	readData(DataInput in) Read the arguments for this opcode from the given stream.
MethodInstruction	setMethod(BCMethod method) Set the method to operate on.
MethodInstruction	setMethod(Constructor method) Set the method to operate on.
MethodInstruction	setMethod(Method method) Set the method to operate on.
MethodInstruction	setMethod(String name, Class returnType, Class[] paramTypes, Class ownerType) Set the method to operate on.
MethodInstruction	setMethod(String name, Class returnType, Class[] paramTypes, String ownerType) Set the method to operate on.
MethodInstruction	setMethod(String name, String returnType, String[] paramTypes, String ownerType) Set the method to operate on.
void	setMethodIndex(int index) Set the index of the ComplexEntry in the constant pool describing the method to operate on.
MethodInstruction	setMethodName(String name) Change the method name.
MethodInstruction	setMethodOwnerTypeName(String name) Change the method owner type.
MethodInstruction	setMethodParamTypeNames(String[] names) Change the method param types.
MethodInstruction	setMethodReturnTypeName(String name) Change the method return type.
protected void	writeData(DataOutput out) Write the arguments for this opcode to the given stream.

Methods inherited from class com.techtrader.modules.tools.bytecode.Instruction

getByteIndex, getName, getOpCode, getOwner, invalidate, setByteIndex, setOpCode

Methods inherited from class java.lang.Object

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

Constructor Detail

MethodInstruction

protected MethodInstruction(Code owner,
                            int opcode)

Method Detail

getMethodIndex

public int getMethodIndex()

Get the index of the ComplexEntry in the constant pool describing the method to operate on.

setMethodIndex

public void setMethodIndex(int index)

Set the index of the ComplexEntry in the constant pool describing the method to operate on.

setMethod

public MethodInstruction setMethod(BCMethod method)

Set the method to operate on.

Returns:

this Instruction, for method chaining

setMethod

public MethodInstruction setMethod(Method method)

Set the method to operate on.

Returns:

this Instruction, for method chaining

setMethod

public MethodInstruction setMethod(Constructor method)

Set the method to operate on.

Returns:

this Instruction, for method chaining

setMethod

public MethodInstruction setMethod(String name,
                                   String returnType,
                                   String[] paramTypes,
                                   String ownerType)

Set the method to operate on.

Returns:

this Instruction, for method chaining

setMethod

public MethodInstruction setMethod(String name,
                                   Class returnType,
                                   Class[] paramTypes,
                                   String ownerType)

Set the method to operate on.

Returns:

this Instruction, for method chaining

setMethod

public MethodInstruction setMethod(String name,
                                   Class returnType,
                                   Class[] paramTypes,
                                   Class ownerType)

Set the method to operate on.

Returns:

this Instruction, for method chaining

setMethodName

public MethodInstruction setMethodName(String name)

Change the method name.

Returns:

this Instruction, for method chaining

setMethodOwnerTypeName

public MethodInstruction setMethodOwnerTypeName(String name)

Change the method owner type.

Returns:

this Instruction, for method chaining

setMethodReturnTypeName

public MethodInstruction setMethodReturnTypeName(String name)

Change the method return type.

Returns:

this Instruction, for method chaining

setMethodParamTypeNames

public MethodInstruction setMethodParamTypeNames(String[] names)

Change the method param types.

Returns:

this Instruction, for method chaining

isMethodInCurrentClass

public boolean isMethodInCurrentClass()

Return true if the method is a member of the current class.

getMethod

public BCMethod getMethod()

If the method is a member of the current class, then this method will retrieve the BCMethod object for it; otherwise it will return null.

getMethodName

public String getMethodName()

Get the nam of the method to operate on.

getMethodReturnTypeName

public String getMethodReturnTypeName()

Get the return type of the method.

getMethodReturnType

public Class getMethodReturnType()
                          throws ClassNotFoundException

Get the return type of the method.

getMethodParamTypeNames

public String[] getMethodParamTypeNames()

Get the param types of the method.

getMethodParamTypes

public Class[] getMethodParamTypes()
                            throws ClassNotFoundException

Get the param types of the method.

getMethodOwnerTypeName

public String getMethodOwnerTypeName()

Get the type of the method.

getMethodOwnerType

public Class getMethodOwnerType()
                         throws ClassNotFoundException

Get the type of the method.

equals

public boolean equals(Object other)

Method instructions are equal if the method of either is unset, or if they refer to the same method.

Overrides:

equals in class Instruction

getLength

public int getLength()

Description copied from class: Instruction

Return the length in bytes of this opcode, including all arguments. This method should be overridden by opcodes that take arguments.

Overrides:

getLength in class Instruction

getStackChange

public int getStackChange()

Description copied from class: Instruction

Return the number of stack positions this instruction pushes or pops during its execution.

Overrides:

getStackChange in class Instruction

Tags copied from class: Instruction

Returns:

0 if the stack is not affected by this instruction, a positive number if it pushes onto the stack, and a negative number if it pops from the stack

copy

protected void copy(Instruction orig)

Overrides:

copy in class Instruction

readData

protected void readData(DataInput in)
                 throws IOException

Description copied from class: Instruction

Read the arguments for this opcode from the given stream. This method should be overridden by opcodes that take arguments.

Overrides:

readData in class Instruction

writeData

protected void writeData(DataOutput out)
                  throws IOException

Description copied from class: Instruction

Write the arguments for this opcode to the given stream. This method should be overridden by opcodes that take arguments.

Overrides:

writeData in class Instruction

acceptVisit

public void acceptVisit(BCVisitor visit)

Description copied from interface: VisitAcceptor

Accept a visit from a BCVisitor, calling the appropriate methods to notify the visitor that it has entered this entity, and to provide it with the proper callbacks for each sub-entity owned by this object.

Overrides:

acceptVisit in class Instruction