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com.techtrader.modules.tools.bytecode
Class MathInstruction  

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

All Implemented Interfaces:

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

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public class MathInstruction

extends Instruction

Represents one of the math operations defined in the Constants interface. Changing the type or operation of the instruction will automatically update the underlying opcode. Note, however, that some operations cannot act on floating point types.

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Field Summary
private  int	_operation
private  java.lang.Class	_type
private static java.util.Map	_typeNames

 

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	MathInstruction(Code owner)
protected	MathInstruction(Code owner, int opcode, int operation, java.lang.Class type)

 

Method Summary
void	acceptVisit(com.techtrader.modules.tools.bytecode.visitor.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.
private  void	calculateOpCode()           Helper method to calculate the correct opcode for this instruction.
protected  void	copy(Instruction orig)
boolean	equals(java.lang.Object other)           MathInstructions are equal if they have the same operation and type, or the type of either is unset.
int	getOperation()           Return the operation for this math instruction; will be one of the math constant defined in Constants, or -1 if unset.
int	getStackChange()           Return the number of stack positions this instruction pushes or pops during its execution.
java.lang.Class	getType()           Get the type of args to operation on; will be one of: int, float, double, long.
MathInstruction	setOperation(int operation)           Set the math operation to be performed.
MathInstruction	setType(java.lang.Class type)           Set the type of args to operate on.
MathInstruction	setTypeName(java.lang.String name)           Set the type to load by name.

 

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

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

 

Methods inherited from class java.lang.Object

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

 

Field Detail

_typeNames

private static final java.util.Map _typeNames

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_type

private java.lang.Class _type

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_operation

private int _operation

Constructor Detail

MathInstruction

protected MathInstruction(Code owner)

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MathInstruction

protected MathInstruction(Code owner,
                          int opcode,
                          int operation,
                          java.lang.Class type)

Method Detail

setOperation

public MathInstruction setOperation(int operation)

Set the math operation to be performed. This should be one of the math constant defined in Constants.

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getOperation

public int getOperation()

Return the operation for this math instruction; will be one of the math constant defined in Constants, or -1 if unset.

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getType

public java.lang.Class getType()

Get the type of args to operation on; will be one of: int, float, double, long. If the type has not been set, this method will return null.

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setType

public MathInstruction setType(java.lang.Class type)

Set the type of args to operate on. Types without direct support are demoted to int.class.

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setTypeName

public MathInstruction setTypeName(java.lang.String name)

Set the type to load by name.

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equals

public boolean equals(java.lang.Object other)

MathInstructions are equal if they have the same operation and type, or the type of either is unset.

Overrides:

equals in class Instruction

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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

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copy

protected void copy(Instruction orig)

Overrides:

copy in class Instruction

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calculateOpCode

private void calculateOpCode()

Helper method to calculate the correct opcode for this instruction. Takes advantage of the arrangements of the opcodes and constants.

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acceptVisit

public void acceptVisit(com.techtrader.modules.tools.bytecode.visitor.BCVisitor visit)

Description copied from interface: com.techtrader.modules.tools.bytecode.visitor.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.

Specified by:

acceptVisit in interface com.techtrader.modules.tools.bytecode.visitor.VisitAcceptor

Overrides:

acceptVisit 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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