RuleGeneratorAdapter (byteman-root 2.1.4.1 API)

java.lang.Object
- org.objectweb.asm.MethodAdapter
- - org.jboss.byteman.agent.adapter.RuleMethodAdapter
  - - org.jboss.byteman.agent.adapter.RuleGeneratorAdapter

All Implemented Interfaces:

org.objectweb.asm.MethodVisitor

Direct Known Subclasses:

RuleTriggerMethodAdapter
```
public class RuleGeneratorAdapter
extends RuleMethodAdapter
```
A modified version of the asm 3.0 GeneratorAdapter class which dispatches calls to methods of MethodVisitor to this rather than to the encapsulated MethodVisitor instance in field mv. Doing so gives the current instance a chance to observe all visit operations. Without it the current instance only sees visit operations invoked directly by previous visitors in the chain. This is necessary in order for the RuleTriggerAdapter to build a complete CFG for the method being visited. As a consequence of the above change this class cannot inherit the methods from LocalVariableSorter which allow introduction of new local variables. That's not actually much of a loss since the functionality provided by that class is of limited utility -- it only allows local variables to be introduced via a prior pipeline stage. Instead this class provides methods to track the number of locals employed so far and supports temporary introduction and removal of locals inside injected trigger or handler code. See methods newLocal(org.objectweb.asm.Type), popLocal(int), loadLocal(int) and storeLocal(int). Another reason to transplant code to this class is because it inherits functionality from RuleMethodAdapter which is used by RuleCheckAdapter and RuleTriggerAdapter to identify and classify local variables but provides functionality to modify bytecode which is only needed by RuleTriggerAdapter. So, the original class would have needed reparenting anyway.

Author:

Andrew Dinn, Juozas Baliuka, Chris Nokleberg, Eric Bruneton

Nested Class Summary
- Nested classes/interfaces inherited from class org.jboss.byteman.agent.adapter.RuleMethodAdapter
  RuleMethodAdapter.LocalVar

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`ADD` Constant for the `math` method.
`static int`	`AND` Constant for the `math` method.
`static int`	`DIV` Constant for the `math` method.
`static int`	`EQ` Constant for the `ifCmp` method.
`static int`	`GE` Constant for the `ifCmp` method.
`static int`	`GT` Constant for the `ifCmp` method.
`static int`	`LE` Constant for the `ifCmp` method.
`static int`	`LT` Constant for the `ifCmp` method.
`static int`	`MUL` Constant for the `math` method.
`static int`	`NE` Constant for the `ifCmp` method.
`static int`	`NEG` Constant for the `math` method.
`static int`	`OR` Constant for the `math` method.
`static int`	`REM` Constant for the `math` method.
`static int`	`SHL` Constant for the `math` method.
`static int`	`SHR` Constant for the `math` method.
`static int`	`SUB` Constant for the `math` method.
`static int`	`USHR` Constant for the `math` method.
`static int`	`XOR` Constant for the `math` method.

Fields inherited from class org.jboss.byteman.agent.adapter.RuleMethodAdapter
access, descriptor, name, rule, transformContext

Fields inherited from class org.objectweb.asm.MethodAdapter
mv

Constructor Summary

Constructors
Constructor and Description
`RuleGeneratorAdapter(org.objectweb.asm.MethodVisitor mv, TransformContext transformContext, int access, String name, String desc, Rule rule)` Creates a new `RuleGeneratorAdapter`.

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`arrayLength()` Generates the instruction to compute the length of an array.
`void`	`arrayLoad(org.objectweb.asm.Type type)` Generates the instruction to load an element from an array.
`void`	`arrayStore(org.objectweb.asm.Type type)` Generates the instruction to store an element in an array.
`void`	`box(org.objectweb.asm.Type type)` Generates the instructions to box the top stack value.
`void`	`cast(org.objectweb.asm.Type from, org.objectweb.asm.Type to)` Generates the instructions to cast a numerical value from one type to another.
`void`	`catchException(org.objectweb.asm.Label start, org.objectweb.asm.Label end, org.objectweb.asm.Type exception)` Marks the start of an exception handler.
`void`	`checkCast(org.objectweb.asm.Type type)` Generates the instruction to check that the top stack value is of the given type.
`void`	`dup()` Generates a DUP instruction.
`void`	`dup2()` Generates a DUP2 instruction.
`void`	`dup2X1()` Generates a DUP2_X1 instruction.
`void`	`dup2X2()` Generates a DUP2_X2 instruction.
`void`	`dupX1()` Generates a DUP_X1 instruction.
`void`	`dupX2()` Generates a DUP_X2 instruction.
`void`	`endMethod()` Marks the end of the visited method.
`void`	`getField(org.objectweb.asm.Type owner, String name, org.objectweb.asm.Type type)` Generates the instruction to push the value of a non static field on the stack.
`org.objectweb.asm.Type`	`getLocalType(int local)`
`void`	`getStatic(org.objectweb.asm.Type owner, String name, org.objectweb.asm.Type type)` Generates the instruction to push the value of a static field on the stack.
`void`	`goTo(org.objectweb.asm.Label label)` Generates the instruction to jump to the given label.
`void`	`ifCmp(org.objectweb.asm.Type type, int mode, org.objectweb.asm.Label label)` Generates the instructions to jump to a label based on the comparison of the top two stack values.
`void`	`ifICmp(int mode, org.objectweb.asm.Label label)` Generates the instructions to jump to a label based on the comparison of the top two integer stack values.
`void`	`ifNonNull(org.objectweb.asm.Label label)` Generates the instruction to jump to the given label if the top stack value is not null.
`void`	`ifNull(org.objectweb.asm.Label label)` Generates the instruction to jump to the given label if the top stack value is null.
`void`	`ifZCmp(int mode, org.objectweb.asm.Label label)` Generates the instructions to jump to a label based on the comparison of the top integer stack value with zero.
`void`	`iinc(int local, int amount)` Generates the instruction to increment the given local variable.
`void`	`instanceOf(org.objectweb.asm.Type type)` Generates the instruction to test if the top stack value is of the given type.
`void`	`invokeConstructor(org.objectweb.asm.Type type, org.objectweb.asm.commons.Method method)` Generates the instruction to invoke a constructor.
`void`	`invokeInterface(org.objectweb.asm.Type owner, org.objectweb.asm.commons.Method method)` Generates the instruction to invoke an interface method.
`void`	`invokeStatic(org.objectweb.asm.Type owner, org.objectweb.asm.commons.Method method)` Generates the instruction to invoke a static method.
`void`	`invokeVirtual(org.objectweb.asm.Type owner, org.objectweb.asm.commons.Method method)` Generates the instruction to invoke a normal method.
`void`	`loadArg(int arg)` Generates the instruction to load the given method argument on the stack.
`void`	`loadArgArray()` Generates the instructions to load all the method arguments on the stack, as a single object array.
`void`	`loadArgs()` Generates the instructions to load all the method arguments on the stack.
`void`	`loadArgs(int arg, int count)` Generates the instructions to load the given method arguments on the stack.
`void`	`loadLocal(int local)` load a value onto the stack from a local var slot which can obtained from a call to newLocal or from a lcoal variable table entry.
`void`	`loadThis()` Generates the instruction to load 'this' on the stack.
`org.objectweb.asm.Label`	`mark()` Marks the current code position with a new label.
`void`	`mark(org.objectweb.asm.Label label)` Marks the current code position with the given label.
`void`	`math(int op, org.objectweb.asm.Type type)` Generates the instruction to do the specified mathematical or logical operation.
`void`	`monitorEnter()` Generates the instruction to get the monitor of the top stack value.
`void`	`monitorExit()` Generates the instruction to release the monitor of the top stack value.
`void`	`newArray(org.objectweb.asm.Type type)` Generates the instruction to create a new array.
`void`	`newInstance(org.objectweb.asm.Type type)` Generates the instruction to create a new object.
`org.objectweb.asm.Label`	`newLabel()` Creates a new `Label`.
`int`	`newLocal(org.objectweb.asm.Type valueType)` return a new local slot index for a local var not currently in use.
`void`	`not()` Generates the instructions to compute the bitwise negation of the top stack value.
`void`	`pop()` Generates a POP instruction.
`void`	`pop2()` Generates a POP2 instruction.
`void`	`popLocal(int local)` free a previously allocated local slot
`void`	`push(boolean value)` Generates the instruction to push the given value on the stack.
`void`	`push(double value)` Generates the instruction to push the given value on the stack.
`void`	`push(float value)` Generates the instruction to push the given value on the stack.
`void`	`push(int value)` Generates the instruction to push the given value on the stack.
`void`	`push(long value)` Generates the instruction to push the given value on the stack.
`void`	`push(String value)` Generates the instruction to push the given value on the stack.
`void`	`push(org.objectweb.asm.Type value)` Generates the instruction to push the given value on the stack.
`void`	`putField(org.objectweb.asm.Type owner, String name, org.objectweb.asm.Type type)` Generates the instruction to store the top stack value in a non static field.
`void`	`putStatic(org.objectweb.asm.Type owner, String name, org.objectweb.asm.Type type)` Generates the instruction to store the top stack value in a static field.
`void`	`ret(int local)` Generates a RET instruction.
`void`	`returnValue()` Generates the instruction to return the top stack value to the caller.
`void`	`storeArg(int arg)` Generates the instruction to store the top stack value in the given method argument.
`void`	`storeLocal(int local)` save a value on the stack to a local var slot
`void`	`swap()` Generates a SWAP instruction.
`void`	`swap(org.objectweb.asm.Type prev, org.objectweb.asm.Type type)` Generates the instructions to swap the top two stack values.
`void`	`tableSwitch(int[] keys, org.objectweb.asm.commons.TableSwitchGenerator generator)` Generates the instructions for a switch statement.
`void`	`tableSwitch(int[] keys, org.objectweb.asm.commons.TableSwitchGenerator generator, boolean useTable)` Generates the instructions for a switch statement.
`void`	`throwException()` Generates the instruction to throw an exception.
`void`	`throwException(org.objectweb.asm.Type type, String msg)` Generates the instructions to create and throw an exception.
`void`	`unbox(org.objectweb.asm.Type type)` Generates the instructions to unbox the top stack value.
`void`	`visitFrame(int type, int nLocal, Object[] local, int nStack, Object[] stack)`
`void`	`visitMaxs(int maxStack, int maxLocals)` ensure we allow enough room for any extra locals on the stack
`void`	`visitVarInsn(int opcode, int var)` override this so we can see track which local var slots are in use and avoid overwriting them

Methods inherited from class org.jboss.byteman.agent.adapter.RuleMethodAdapter
getTriggerClassName, lookup, visitLocalVariable

Methods inherited from class org.objectweb.asm.MethodAdapter
visitAnnotation, visitAnnotationDefault, visitAttribute, visitCode, visitEnd, visitFieldInsn, visitIincInsn, visitInsn, visitIntInsn, visitJumpInsn, visitLabel, visitLdcInsn, visitLineNumber, visitLookupSwitchInsn, visitMethodInsn, visitMultiANewArrayInsn, visitParameterAnnotation, visitTableSwitchInsn, visitTryCatchBlock, visitTypeInsn

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - ADD
```
public static final int ADD
```
    Constant for the math method.
    
    See Also:
    Constant Field Values
  - SUB
```
public static final int SUB
```
    Constant for the math method.
    
    See Also:
    Constant Field Values
  - MUL
```
public static final int MUL
```
    Constant for the math method.
    
    See Also:
    Constant Field Values
  - DIV
```
public static final int DIV
```
    Constant for the math method.
    
    See Also:
    Constant Field Values
  - REM
```
public static final int REM
```
    Constant for the math method.
    
    See Also:
    Constant Field Values
  - NEG
```
public static final int NEG
```
    Constant for the math method.
    
    See Also:
    Constant Field Values
  - SHL
```
public static final int SHL
```
    Constant for the math method.
    
    See Also:
    Constant Field Values
  - SHR
```
public static final int SHR
```
    Constant for the math method.
    
    See Also:
    Constant Field Values
  - USHR
```
public static final int USHR
```
    Constant for the math method.
    
    See Also:
    Constant Field Values
  - AND
```
public static final int AND
```
    Constant for the math method.
    
    See Also:
    Constant Field Values
  - OR
```
public static final int OR
```
    Constant for the math method.
    
    See Also:
    Constant Field Values
  - XOR
```
public static final int XOR
```
    Constant for the math method.
    
    See Also:
    Constant Field Values
  - EQ
```
public static final int EQ
```
    Constant for the ifCmp method.
    
    See Also:
    Constant Field Values
  - NE
```
public static final int NE
```
    Constant for the ifCmp method.
    
    See Also:
    Constant Field Values
  - LT
```
public static final int LT
```
    Constant for the ifCmp method.
    
    See Also:
    Constant Field Values
  - GE
```
public static final int GE
```
    Constant for the ifCmp method.
    
    See Also:
    Constant Field Values
  - GT
```
public static final int GT
```
    Constant for the ifCmp method.
    
    See Also:
    Constant Field Values
  - LE
```
public static final int LE
```
    Constant for the ifCmp method.
    
    See Also:
    Constant Field Values
- Constructor Detail
  - RuleGeneratorAdapter
```
public RuleGeneratorAdapter(org.objectweb.asm.MethodVisitor mv,
                    TransformContext transformContext,
                    int access,
                    String name,
                    String desc,
                    Rule rule)
```
    Creates a new RuleGeneratorAdapter.
    
    Parameters:
    mv - the method visitor to which this adapter delegates calls.
    access - the method's access flags (see Opcodes).
    name - the method's name.
    desc - the method's descriptor (see Type).
- Method Detail
  - push
```
public void push(boolean value)
```
    Generates the instruction to push the given value on the stack.
    
    Parameters:
    value - the value to be pushed on the stack.
  - push
```
public void push(int value)
```
    Generates the instruction to push the given value on the stack.
    
    Parameters:
    value - the value to be pushed on the stack.
  - push
```
public void push(long value)
```
    Generates the instruction to push the given value on the stack.
    
    Parameters:
    value - the value to be pushed on the stack.
  - push
```
public void push(float value)
```
    Generates the instruction to push the given value on the stack.
    
    Parameters:
    value - the value to be pushed on the stack.
  - push
```
public void push(double value)
```
    Generates the instruction to push the given value on the stack.
    
    Parameters:
    value - the value to be pushed on the stack.
  - push
```
public void push(String value)
```
    Generates the instruction to push the given value on the stack.
    
    Parameters:
    value - the value to be pushed on the stack. May be null.
  - push
```
public void push(org.objectweb.asm.Type value)
```
    Generates the instruction to push the given value on the stack.
    
    Parameters:
    value - the value to be pushed on the stack.
  - loadThis
```
public void loadThis()
```
    Generates the instruction to load 'this' on the stack.
  - loadArg
```
public void loadArg(int arg)
```
    Generates the instruction to load the given method argument on the stack.
    
    Parameters:
    arg - the index of a method argument.
  - loadArgs
```
public void loadArgs(int arg,
            int count)
```
    Generates the instructions to load the given method arguments on the stack.
    
    Parameters:
    arg - the index of the first method argument to be loaded.
    count - the number of method arguments to be loaded.
  - loadArgs
```
public void loadArgs()
```
    Generates the instructions to load all the method arguments on the stack.
  - loadArgArray
```
public void loadArgArray()
```
    Generates the instructions to load all the method arguments on the stack, as a single object array.
  - storeArg
```
public void storeArg(int arg)
```
    Generates the instruction to store the top stack value in the given method argument.
    
    Parameters:
    arg - the index of a method argument.
  - arrayLoad
```
public void arrayLoad(org.objectweb.asm.Type type)
```
    Generates the instruction to load an element from an array.
    
    Parameters:
    type - the type of the array element to be loaded.
  - arrayStore
```
public void arrayStore(org.objectweb.asm.Type type)
```
    Generates the instruction to store an element in an array.
    
    Parameters:
    type - the type of the array element to be stored.
  - pop
```
public void pop()
```
    Generates a POP instruction.
  - pop2
```
public void pop2()
```
    Generates a POP2 instruction.
  - dup
```
public void dup()
```
    Generates a DUP instruction.
  - dup2
```
public void dup2()
```
    Generates a DUP2 instruction.
  - dupX1
```
public void dupX1()
```
    Generates a DUP_X1 instruction.
  - dupX2
```
public void dupX2()
```
    Generates a DUP_X2 instruction.
  - dup2X1
```
public void dup2X1()
```
    Generates a DUP2_X1 instruction.
  - dup2X2
```
public void dup2X2()
```
    Generates a DUP2_X2 instruction.
  - swap
```
public void swap()
```
    Generates a SWAP instruction.
  - swap
```
public void swap(org.objectweb.asm.Type prev,
        org.objectweb.asm.Type type)
```
    Generates the instructions to swap the top two stack values.
    
    Parameters:
    prev - type of the top - 1 stack value.
    type - type of the top stack value.
  - math
```
public void math(int op,
        org.objectweb.asm.Type type)
```
    Generates the instruction to do the specified mathematical or logical operation.
    
    Parameters:
    op - a mathematical or logical operation. Must be one of ADD, SUB, MUL, DIV, REM, NEG, SHL, SHR, USHR, AND, OR, XOR.
    type - the type of the operand(s) for this operation.
  - not
```
public void not()
```
    Generates the instructions to compute the bitwise negation of the top stack value.
  - iinc
```
public void iinc(int local,
        int amount)
```
    Generates the instruction to increment the given local variable.
    
    Parameters:
    local - the local variable to be incremented.
    amount - the amount by which the local variable must be incremented.
  - cast
```
public void cast(org.objectweb.asm.Type from,
        org.objectweb.asm.Type to)
```
    Generates the instructions to cast a numerical value from one type to another.
    
    Parameters:
    from - the type of the top stack value
    to - the type into which this value must be cast.
  - box
```
public void box(org.objectweb.asm.Type type)
```
    Generates the instructions to box the top stack value. This value is replaced by its boxed equivalent on top of the stack.
    
    Parameters:
    type - the type of the top stack value.
  - unbox
```
public void unbox(org.objectweb.asm.Type type)
```
    Generates the instructions to unbox the top stack value. This value is replaced by its unboxed equivalent on top of the stack.
    
    Parameters:
    type - the type of the top stack value.
  - newLabel
```
public org.objectweb.asm.Label newLabel()
```
    Creates a new Label.
    
    Returns:
    a new Label.
  - mark
```
public void mark(org.objectweb.asm.Label label)
```
    Marks the current code position with the given label.
    
    Parameters:
    label - a label.
  - mark
```
public org.objectweb.asm.Label mark()
```
    Marks the current code position with a new label.
    
    Returns:
    the label that was created to mark the current code position.
  - ifCmp
```
public void ifCmp(org.objectweb.asm.Type type,
         int mode,
         org.objectweb.asm.Label label)
```
    Generates the instructions to jump to a label based on the comparison of the top two stack values.
    
    Parameters:
    type - the type of the top two stack values.
    mode - how these values must be compared. One of EQ, NE, LT, GE, GT, LE.
    label - where to jump if the comparison result is true.
  - ifICmp
```
public void ifICmp(int mode,
          org.objectweb.asm.Label label)
```
    Generates the instructions to jump to a label based on the comparison of the top two integer stack values.
    
    Parameters:
    mode - how these values must be compared. One of EQ, NE, LT, GE, GT, LE.
    label - where to jump if the comparison result is true.
  - ifZCmp
```
public void ifZCmp(int mode,
          org.objectweb.asm.Label label)
```
    Generates the instructions to jump to a label based on the comparison of the top integer stack value with zero.
    
    Parameters:
    mode - how these values must be compared. One of EQ, NE, LT, GE, GT, LE.
    label - where to jump if the comparison result is true.
  - ifNull
```
public void ifNull(org.objectweb.asm.Label label)
```
    Generates the instruction to jump to the given label if the top stack value is null.
    
    Parameters:
    label - where to jump if the condition is true.
  - ifNonNull
```
public void ifNonNull(org.objectweb.asm.Label label)
```
    Generates the instruction to jump to the given label if the top stack value is not null.
    
    Parameters:
    label - where to jump if the condition is true.
  - goTo
```
public void goTo(org.objectweb.asm.Label label)
```
    Generates the instruction to jump to the given label.
    
    Parameters:
    label - where to jump if the condition is true.
  - ret
```
public void ret(int local)
```
    Generates a RET instruction.
    
    Parameters:
    local - a local variable identifier, as returned by newLocal().
  - tableSwitch
```
public void tableSwitch(int[] keys,
               org.objectweb.asm.commons.TableSwitchGenerator generator)
```
    Generates the instructions for a switch statement.
    
    Parameters:
    keys - the switch case keys.
    generator - a generator to generate the code for the switch cases.
  - tableSwitch
```
public void tableSwitch(int[] keys,
               org.objectweb.asm.commons.TableSwitchGenerator generator,
               boolean useTable)
```
    Generates the instructions for a switch statement.
    
    Parameters:
    keys - the switch case keys.
    generator - a generator to generate the code for the switch cases.
    useTable - true to use a TABLESWITCH instruction, or false to use a LOOKUPSWITCH instruction.
  - returnValue
```
public void returnValue()
```
    Generates the instruction to return the top stack value to the caller.
  - getStatic
```
public void getStatic(org.objectweb.asm.Type owner,
             String name,
             org.objectweb.asm.Type type)
```
    Generates the instruction to push the value of a static field on the stack.
    
    Parameters:
    owner - the class in which the field is defined.
    name - the name of the field.
    type - the type of the field.
  - putStatic
```
public void putStatic(org.objectweb.asm.Type owner,
             String name,
             org.objectweb.asm.Type type)
```
    Generates the instruction to store the top stack value in a static field.
    
    Parameters:
    owner - the class in which the field is defined.
    name - the name of the field.
    type - the type of the field.
  - getField
```
public void getField(org.objectweb.asm.Type owner,
            String name,
            org.objectweb.asm.Type type)
```
    Generates the instruction to push the value of a non static field on the stack.
    
    Parameters:
    owner - the class in which the field is defined.
    name - the name of the field.
    type - the type of the field.
  - putField
```
public void putField(org.objectweb.asm.Type owner,
            String name,
            org.objectweb.asm.Type type)
```
    Generates the instruction to store the top stack value in a non static field.
    
    Parameters:
    owner - the class in which the field is defined.
    name - the name of the field.
    type - the type of the field.
  - invokeVirtual
```
public void invokeVirtual(org.objectweb.asm.Type owner,
                 org.objectweb.asm.commons.Method method)
```
    Generates the instruction to invoke a normal method.
    
    Parameters:
    owner - the class in which the method is defined.
    method - the method to be invoked.
  - invokeConstructor
```
public void invokeConstructor(org.objectweb.asm.Type type,
                     org.objectweb.asm.commons.Method method)
```
    Generates the instruction to invoke a constructor.
    
    Parameters:
    type - the class in which the constructor is defined.
    method - the constructor to be invoked.
  - invokeStatic
```
public void invokeStatic(org.objectweb.asm.Type owner,
                org.objectweb.asm.commons.Method method)
```
    Generates the instruction to invoke a static method.
    
    Parameters:
    owner - the class in which the method is defined.
    method - the method to be invoked.
  - invokeInterface
```
public void invokeInterface(org.objectweb.asm.Type owner,
                   org.objectweb.asm.commons.Method method)
```
    Generates the instruction to invoke an interface method.
    
    Parameters:
    owner - the class in which the method is defined.
    method - the method to be invoked.
  - newInstance
```
public void newInstance(org.objectweb.asm.Type type)
```
    Generates the instruction to create a new object.
    
    Parameters:
    type - the class of the object to be created.
  - newArray
```
public void newArray(org.objectweb.asm.Type type)
```
    Generates the instruction to create a new array.
    
    Parameters:
    type - the type of the array elements.
  - arrayLength
```
public void arrayLength()
```
    Generates the instruction to compute the length of an array.
  - throwException
```
public void throwException()
```
    Generates the instruction to throw an exception.
  - throwException
```
public void throwException(org.objectweb.asm.Type type,
                  String msg)
```
    Generates the instructions to create and throw an exception. The exception class must have a constructor with a single String argument.
    
    Parameters:
    type - the class of the exception to be thrown.
    msg - the detailed message of the exception.
  - checkCast
```
public void checkCast(org.objectweb.asm.Type type)
```
    Generates the instruction to check that the top stack value is of the given type.
    
    Parameters:
    type - a class or interface type.
  - instanceOf
```
public void instanceOf(org.objectweb.asm.Type type)
```
    Generates the instruction to test if the top stack value is of the given type.
    
    Parameters:
    type - a class or interface type.
  - monitorEnter
```
public void monitorEnter()
```
    Generates the instruction to get the monitor of the top stack value.
  - monitorExit
```
public void monitorExit()
```
    Generates the instruction to release the monitor of the top stack value.
  - endMethod
```
public void endMethod()
```
    Marks the end of the visited method.
  - catchException
```
public void catchException(org.objectweb.asm.Label start,
                  org.objectweb.asm.Label end,
                  org.objectweb.asm.Type exception)
```
    Marks the start of an exception handler.
    
    Parameters:
    start - beginning of the exception handler's scope (inclusive).
    end - end of the exception handler's scope (exclusive).
    exception - internal name of the type of exceptions handled by the handler.
  - visitVarInsn
```
public void visitVarInsn(int opcode,
                int var)
```
    override this so we can see track which local var slots are in use and avoid overwriting them
    
    Specified by:
    
    visitVarInsn in interface org.objectweb.asm.MethodVisitor
    
    Overrides:
    
    visitVarInsn in class org.objectweb.asm.MethodAdapter
    
    Parameters:
    opcode -
    var -
  - newLocal
```
public int newLocal(org.objectweb.asm.Type valueType)
```
    return a new local slot index for a local var not currently in use. this must be released using popLocal before a new frame can be notified which means that the slot should only be allocated inside a generated trigger section and should be released before the trigger end of the trigger section by calling popLocal.
    
    Parameters:
    valueType - the type of the value to be stored in the local slot
    
    Returns:
    the index for the new slot
  - popLocal
```
public void popLocal(int local)
```
    free a previously allocated local slot
    
    Parameters:
    local - the slot to be released
  - loadLocal
```
public void loadLocal(int local)
```
    load a value onto the stack from a local var slot which can obtained from a call to newLocal or from a lcoal variable table entry.
    
    Parameters:
    local - the slot to load from
  - storeLocal
```
public void storeLocal(int local)
```
    save a value on the stack to a local var slot
    
    Parameters:
    local - the slot to save to
  - getLocalType
```
public org.objectweb.asm.Type getLocalType(int local)
```
  - visitMaxs
```
public void visitMaxs(int maxStack,
             int maxLocals)
```
    ensure we allow enough room for any extra locals on the stack
    
    Specified by:
    
    visitMaxs in interface org.objectweb.asm.MethodVisitor
    
    Overrides:
    
    visitMaxs in class org.objectweb.asm.MethodAdapter
    
    Parameters:
    maxStack -
    maxLocals -
  - visitFrame
```
public void visitFrame(int type,
              int nLocal,
              Object[] local,
              int nStack,
              Object[] stack)
```
    Specified by:
    
    visitFrame in interface org.objectweb.asm.MethodVisitor
    
    Overrides:
    
    visitFrame in class org.objectweb.asm.MethodAdapter

Class RuleGeneratorAdapter

Nested Class Summary

Nested classes/interfaces inherited from class org.jboss.byteman.agent.adapter.RuleMethodAdapter

Field Summary

Fields inherited from class org.jboss.byteman.agent.adapter.RuleMethodAdapter

Fields inherited from class org.objectweb.asm.MethodAdapter

Constructor Summary

Method Summary

Methods inherited from class org.jboss.byteman.agent.adapter.RuleMethodAdapter

Methods inherited from class org.objectweb.asm.MethodAdapter

Methods inherited from class java.lang.Object

Field Detail

ADD

SUB

MUL

DIV

REM

NEG

SHL

SHR

USHR

AND

OR

XOR

EQ

NE

LT

GE

GT

LE

Constructor Detail

RuleGeneratorAdapter

Method Detail

push

push

push

push

push

push

push

loadThis

loadArg

loadArgs

loadArgs

loadArgArray

storeArg

arrayLoad

arrayStore

pop

pop2

dup

dup2

dupX1

dupX2

dup2X1

dup2X2

swap

swap

math

not

iinc

cast

box

unbox

newLabel

mark

mark

ifCmp

ifICmp

ifZCmp

ifNull

ifNonNull

goTo

ret

tableSwitch

tableSwitch

returnValue

getStatic

putStatic

getField