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com.techtrader.modules.tools.bytecode
Class LocalVariableInstruction  

java.lang.Object
  com.techtrader.modules.tools.bytecode.Instruction
      com.techtrader.modules.tools.bytecode.LocalVariableInstruction

All Implemented Interfaces:

Constants, com.techtrader.modules.tools.bytecode.visitor.VisitAcceptor

Direct Known Subclasses:

IIncInstruction, RetInstruction, TypedLocalVariableInstruction

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public abstract class LocalVariableInstruction

extends Instruction

Represents an instruction that has an argument of an index into the local variable array of the current frame. This includes most of the LOAD and STORE instructions.

The local variable array size is fixed by the 'maxLocals' property of the code block. Long and double types take up 2 local variable indexes.

Parameter values to methods are loaded into the local variable array prior to the execution of the first instruction. The 0th-index of the array is set to the instance of the class the method is being invoked on.

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Field Summary
protected  int	_index

 

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

_byteIndex, _opcode, _opcodeTypes, _owner

 

Fields inherited from interface com.techtrader.modules.tools.bytecode.Constants

AALOAD, AASTORE, ACCESS_ABSTRACT, ACCESS_FINAL, ACCESS_INTERFACE, ACCESS_NATIVE, ACCESS_PRIVATE, ACCESS_PROTECTED, ACCESS_PUBLIC, ACCESS_STATIC, ACCESS_STRICT, ACCESS_SUPER, ACCESS_SYNCHRONIZED, ACCESS_TRANSIENT, ACCESS_VOLATILE, ACONST_NULL, ALOAD, ALOAD_0, ALOAD_1, ALOAD_2, ALOAD_3, ANEWARRAY, ARETURN, ARRAY_BOOLEAN, ARRAY_BYTE, ARRAY_CHAR, ARRAY_DOUBLE, ARRAY_FLOAT, ARRAY_INT, ARRAY_LONG, ARRAY_SHORT, ARRAYLENGTH, ASTORE, ASTORE_0, ASTORE_1, ASTORE_2, ASTORE_3, ATHROW, ATTR_CODE, ATTR_CONST, ATTR_DEPRECATED, ATTR_EXCEPTIONS, ATTR_INNERCLASS, ATTR_LINENUMBERS, ATTR_LOCALS, ATTR_SOURCE, ATTR_SYNTHETIC, ATTR_UNKNOWN, BALOAD, BASTORE, BIPUSH, CALOAD, CASTORE, CHECKCAST, D2F, D2I, D2L, DADD, DALOAD, DASTORE, DCMPG, DCMPL, DCONST_0, DCONST_1, DDIV, DLOAD, DLOAD_0, DLOAD_1, DLOAD_2, DLOAD_3, DMUL, DNEG, DREM, DRETURN, DSTORE, DSTORE_0, DSTORE_1, DSTORE_2, DSTORE_3, DSUB, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, F2D, F2I, F2L, FADD, FALOAD, FASTORE, FCMPG, FCMPL, FCONST_0, FCONST_1, FCONST_2, FDIV, FLOAD, FLOAD_0, FLOAD_1, FLOAD_2, FLOAD_3, FMUL, FNEG, FREM, FRETURN, FSTORE, FSTORE_0, FSTORE_1, FSTORE_2, FSTORE_3, FSUB, GETFIELD, GETSTATIC, GOTO, GOTO_W, I2B, I2C, I2D, I2F, I2L, I2S, IADD, IALOAD, IAND, IASTORE, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4, ICONST_5, ICONST_M1, IDIV, IF_ACMPEQ, IF_ACMPNE, IF_EQ, IF_GE, IF_GT, IF_ICMPEQ, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ICMPLT, IF_ICMPNE, IF_LE, IF_LT, IF_NE, IF_NONNULL, IF_NULL, IINC, ILOAD, ILOAD_0, ILOAD_1, ILOAD_2, ILOAD_3, IMUL, INEG, INSTANCEOF, INVOKEINTERFACE, INVOKESPECIAL, INVOKESTATIC, INVOKEVIRTUAL, IOR, IREM, IRETURN, ISHL, ISHR, ISTORE, ISTORE_0, ISTORE_1, ISTORE_2, ISTORE_3, ISUB, IUSHR, IXOR, JSR, JSR_W, L2D, L2F, L2I, LADD, LALOAD, LAND, LASTORE, LCMP, LCONST_0, LCONST_1, LDC, LDC_W, LDC2_W, LDIV, LLOAD, LLOAD_0, LLOAD_1, LLOAD_2, LLOAD_3, LMUL, LNEG, LOOKUPSWITCH, LOR, LREM, LRETURN, LSHL, LSHR, LSTORE, LSTORE_0, LSTORE_1, LSTORE_2, LSTORE_3, LSUB, LUSHR, LXOR, MATH_ADD, MATH_AND, MATH_DIV, MATH_MUL, MATH_NEG, MATH_OR, MATH_REM, MATH_SHL, MATH_SHR, MATH_SUB, MATH_USHR, MATH_XOR, MONITORENTER, MONITOREXIT, MULTIANEWARRAY, NEW, NEWARRAY, NOP, OPCODE_NAMES, POP, POP2, PUTFIELD, PUTSTATIC, RET, RETURN, SALOAD, SASTORE, SIPUSH, SWAP, TABLESWITCH, VALID_MAGIC, WIDE

 

Constructor Summary
protected	LocalVariableInstruction(Code owner)

 

Method Summary
protected  void	calculateOpCode()           Subclasses with variable opcodes can use this method to be notified that information possibly affecting the opcode has been changed.
protected  void	copy(Instruction orig)
boolean	equals(java.lang.Object other)           Two local variable instructions are equal if the local index they reference is equal or if either index is 0/unset.
int	getIndex()           Get the index of the local variable that this instruction should operate on.
LocalVariableInstruction	setIndex(int index)           Set the index of the local variable that this instruction should operate on.

 

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

acceptVisit, getByteIndex, getLength, getName, getOpCode, getOwner, getStackChange, invalidate, readData, setByteIndex, setOpCode, writeData

 

Methods inherited from class java.lang.Object

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

 

Field Detail

_index

protected int _index

Constructor Detail

LocalVariableInstruction

protected LocalVariableInstruction(Code owner)

Method Detail

setIndex

public LocalVariableInstruction setIndex(int index)

Set the index of the local variable that this instruction should operate on.

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getIndex

public int getIndex()

Get the index of the local variable that this instruction should operate on.

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equals

public boolean equals(java.lang.Object other)

Two local variable instructions are equal if the local index they reference is equal or if either index is 0/unset.

Overrides:

equals in class Instruction

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calculateOpCode

protected void calculateOpCode()

Subclasses with variable opcodes can use this method to be notified that information possibly affecting the opcode has been changed.

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copy

protected void copy(Instruction orig)

Overrides:

copy in class Instruction

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> com >> techtrader >> modules >> tools >> [ bytecode overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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