at.dms.backend
Class InstructionHandle

java.lang.Object
  at.dms.classfile.AbstractInstructionAccessor
      at.dms.backend.InstructionHandle

All Implemented Interfaces:

Constants, InstructionAccessor

public class InstructionHandle
extends AbstractInstructionAccessor
implements Constants

Field Summary

Fields inherited from interface at.dms.classfile.Constants

ACC_ABSTRACT, ACC_FINAL, ACC_INLINE, ACC_INTERFACE, ACC_NATIVE, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_STATIC, ACC_STRICT, ACC_SUPER, ACC_SYNCHRONIZED, ACC_TRANSIENT, ACC_VOLATILE, ATT_CODE, ATT_CONSTANTVALUE, ATT_DEPRECATED, ATT_EXCEPTIONS, ATT_GENERIC, ATT_INNERCLASSES, ATT_LINENUMBERTABLE, ATT_LOCALVARIABLETABLE, ATT_SOURCEFILE, ATT_SYNTHETIC, CST_CLASS, CST_DOUBLE, CST_FIELD, CST_FLOAT, CST_INTEGER, CST_INTERFACEMETHOD, CST_LONG, CST_METHOD, CST_NAMEANDTYPE, CST_STRING, CST_UTF8, ENV_DEBUG_MODE, ENV_USE_CACHE, JAVA_MAGIC, JAVA_MAJOR, JAVA_MINOR, MAX_CODE_PER_METHOD, opc_aaload, opc_aastore, opc_aconst_null, opc_aload, opc_aload_0, opc_aload_1, opc_aload_2, opc_aload_3, opc_anewarray, opc_areturn, opc_arraylength, opc_astore, opc_astore_0, opc_astore_1, opc_astore_2, opc_astore_3, opc_athrow, opc_baload, opc_bastore, opc_bipush, opc_caload, opc_castore, opc_checkcast, opc_d2f, opc_d2i, opc_d2l, opc_dadd, opc_daload, opc_dastore, opc_dcmpg, opc_dcmpl, opc_dconst_0, opc_dconst_1, opc_ddiv, opc_dload, opc_dload_0, opc_dload_1, opc_dload_2, opc_dload_3, opc_dmul, opc_dneg, opc_drem, opc_dreturn, opc_dstore, opc_dstore_0, opc_dstore_1, opc_dstore_2, opc_dstore_3, opc_dsub, opc_dup, opc_dup_x1, opc_dup_x2, opc_dup2, opc_dup2_x1, opc_dup2_x2, opc_f2d, opc_f2i, opc_f2l, opc_fadd, opc_faload, opc_fastore, opc_fcmpg, opc_fcmpl, opc_fconst_0, opc_fconst_1, opc_fconst_2, opc_fdiv, opc_fload, opc_fload_0, opc_fload_1, opc_fload_2, opc_fload_3, opc_fmul, opc_fneg, opc_frem, opc_freturn, opc_fstore, opc_fstore_0, opc_fstore_1, opc_fstore_2, opc_fstore_3, opc_fsub, opc_getfield, opc_getstatic, opc_goto, opc_goto_w, opc_i2b, opc_i2c, opc_i2d, opc_i2f, opc_i2l, opc_i2s, opc_iadd, opc_iaload, opc_iand, opc_iastore, opc_iconst_0, opc_iconst_1, opc_iconst_2, opc_iconst_3, opc_iconst_4, opc_iconst_5, opc_iconst_m1, opc_idiv, opc_if_acmpeq, opc_if_acmpne, opc_if_icmpeq, opc_if_icmpge, opc_if_icmpgt, opc_if_icmple, opc_if_icmplt, opc_if_icmpne, opc_ifeq, opc_ifge, opc_ifgt, opc_ifle, opc_iflt, opc_ifne, opc_ifnonnull, opc_ifnull, opc_iinc, opc_iload, opc_iload_0, opc_iload_1, opc_iload_2, opc_iload_3, opc_imul, opc_ineg, opc_instanceof, opc_invokeinterface, opc_invokespecial, opc_invokestatic, opc_invokevirtual, opc_ior, opc_irem, opc_ireturn, opc_ishl, opc_ishr, opc_istore, opc_istore_0, opc_istore_1, opc_istore_2, opc_istore_3, opc_isub, opc_iushr, opc_ixor, opc_jsr, opc_jsr_w, opc_l2d, opc_l2f, opc_l2i, opc_ladd, opc_laload, opc_land, opc_lastore, opc_lcmp, opc_lconst_0, opc_lconst_1, opc_ldc, opc_ldc_w, opc_ldc2_w, opc_ldiv, opc_lload, opc_lload_0, opc_lload_1, opc_lload_2, opc_lload_3, opc_lmul, opc_lneg, opc_lookupswitch, opc_lor, opc_lrem, opc_lreturn, opc_lshl, opc_lshr, opc_lstore, opc_lstore_0, opc_lstore_1, opc_lstore_2, opc_lstore_3, opc_lsub, opc_lushr, opc_lxor, opc_monitorenter, opc_monitorexit, opc_multianewarray, opc_new, opc_newarray, opc_nop, opc_pop, opc_pop2, opc_putfield, opc_putstatic, opc_ret, opc_return, opc_saload, opc_sastore, opc_sipush, opc_swap, opc_tableswitch, opc_wide, opc_xxxunusedxxx, POO_ASCII_CONSTANT, POO_CLASS_CONSTANT, POO_DOUBLE_CONSTANT, POO_FLOAT_CONSTANT, POO_INTEGER_CONSTANT, POO_LONG_CONSTANT, POO_NAT_CONSTANT, POO_REF_CONSTANT, POO_STRING_CONSTANT, TYP_ADDRESS, TYP_DOUBLE, TYP_FLOAT, TYP_INT, TYP_LONG, TYP_REFERENCE, TYP_VOID

Constructor Summary

InstructionHandle(Instruction insn, InstructionHandle prev)
Creates a new instruction handle.

Method Summary

void	addAccessor(AccessorContainer accessor)
void	addLineNumberInfo(Vector lineNumberInfo) Adds line number info stored for the instruction to the specified vector.
void	attachTo(AccessorContainer container) Notifies this handle that is has been attached to the specified container.
void	clean() reset
int	countOperands()
void	destroy() destroy
AccessorContainer	getAccessor(int i)
Instruction	getInstruction() Returns the enclosed instruction.
JumpInstruction	getJump() Returns the instruction as a Jump instruction
LocalVarInstruction	getLocal() Returns the instruction as a Jump instruction
InstructionHandle	getNext() Returns the handle of the next instruction in textual order.
int	getOpcode() Returns the target of this jump instruction
InstructionHandle	getPrevious() Returns the handle of the next instruction in textual order.
InstructionHandle	getTarget() Returns the target of this jump instruction
boolean	hasReturnValue()
boolean	isDup()
boolean	isDupX2()
boolean	isJump() Returns true if this instruction is a jump instruction
boolean	isPop()
boolean	isReached() isReached
boolean	isSwap()
boolean	isTarget() isTarget
boolean	remove() destroy
void	removeAccessor(AccessorContainer accessor)
void	removeAccessors()
void	replaceBy(Instruction insn) replaceBy
void	replaceBy(Instruction[] insns) replaceBy
void	reset() reset
void	set() isReached
void	setNext(InstructionHandle next) Sets the handle of the next instruction in textual order.
void	setTarget(InstructionHandle target) Returns the target of this jump instruction

Methods inherited from class at.dms.classfile.AbstractInstructionAccessor

deepClone, deepCloneInto, transform

Methods inherited from class java.lang.Object

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

Constructor Detail

InstructionHandle

public InstructionHandle(Instruction insn,
                         InstructionHandle prev)

Creates a new instruction handle.

Parameters:

insn - the instruction

prev - the handle of the next instruction in textual order

Method Detail

attachTo

public void attachTo(AccessorContainer container)

Notifies this handle that is has been attached to the specified container.

addLineNumberInfo

public void addLineNumberInfo(Vector lineNumberInfo)

Adds line number info stored for the instruction to the specified vector.

getInstruction

public Instruction getInstruction()

Returns the enclosed instruction.

getNext

public InstructionHandle getNext()

Returns the handle of the next instruction in textual order.

getPrevious

public InstructionHandle getPrevious()

Returns the handle of the next instruction in textual order.

isJump

public boolean isJump()

Returns true if this instruction is a jump instruction

getJump

public JumpInstruction getJump()

Returns the instruction as a Jump instruction

getLocal

public LocalVarInstruction getLocal()

Returns the instruction as a Jump instruction

getTarget

public InstructionHandle getTarget()

Returns the target of this jump instruction

setTarget

public void setTarget(InstructionHandle target)

Returns the target of this jump instruction

getOpcode

public int getOpcode()

Returns the target of this jump instruction

hasReturnValue

public boolean hasReturnValue()

countOperands

public int countOperands()

isPop

public boolean isPop()

isDup

public boolean isDup()

isDupX2

public boolean isDupX2()

isSwap

public boolean isSwap()

setNext

public void setNext(InstructionHandle next)

Sets the handle of the next instruction in textual order.

isReached

public boolean isReached()

isReached

isTarget

public boolean isTarget()

isTarget

set

public void set()

isReached

destroy

public void destroy()

destroy

remove

public boolean remove()

destroy

reset

public void reset()

reset

clean

public void clean()

reset

replaceBy

public void replaceBy(Instruction insn)

replaceBy

replaceBy

public void replaceBy(Instruction[] insns)

replaceBy

addAccessor

public void addAccessor(AccessorContainer accessor)

getAccessor

public AccessorContainer getAccessor(int i)

removeAccessor

public void removeAccessor(AccessorContainer accessor)

removeAccessors

public void removeAccessors()