net.oneandone.mork.classfile

Class InstructionType

java.lang.Object

net.oneandone.mork.classfile.InstructionType

All Implemented Interfaces:

Bytecodes, Constants

public class InstructionType
extends Object
implements Bytecodes, Constants

Type of an instruction.

Field Summary

Fields

Modifier and Type	Field and Description
int[]	args depends on encoding: SIMPLE: argument types LV: opcode_0, opcode_1, opcode_2, opcode_3 BRANCH: opcodeNot // opcode for negation VBRANCH: opcodeW otherwise: empty
int	encoding
int	length for SIMPLE encodings only; effectively a final variable.
String	name
int	opcode
int	stackDiff
int	succType

Fields inherited from interface net.oneandone.mork.classfile.Bytecodes

AALOAD, AASTORE, ACONST_NULL, ALOAD, ALOAD_0, ALOAD_1, ALOAD_2, ALOAD_3, ANEWARRAY, ARETURN, ARRAYLENGTH, ASTORE, ASTORE_0, ASTORE_1, ASTORE_2, ASTORE_3, ATHROW, 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_ICMPEQ, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ICMPLT, IF_ICMPNE, IFEQ, IFGE, IFGT, IFLE, IFLT, IFNE, IFNONNULL, IFNULL, 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, MONITORENTER, MONITOREXIT, MULTIANEWARRAY, NEW, NEWARRAY, NOP, POP, POP2, PUTFIELD, PUTSTATIC, RET, RETURN, SALOAD, SASTORE, SIPUSH, SWAP, TABLESWITCH, WIDE

Fields inherited from interface net.oneandone.mork.classfile.Constants

AE_CNST, AE_CNST_W, AE_CNST2_W, AE_FIELDREF, AE_I_D0, AE_I_D1, AE_I_F0, AE_I_F1, AE_I_F2, AE_I_I0, AE_I_I1, AE_I_I2, AE_I_I3, AE_I_I4, AE_I_I5, AE_I_IML, AE_I_L0, AE_I_L1, AE_I_LAST, AE_I_NULL, AE_IFMETHOD, AE_METHODREF, AE_REFTYPEREF, AE_S1, AE_S2, AE_U1, AE_U2, AE_U4, BRANCH, BYTE, CNST, CONSTANT_CLASS, CONSTANT_DOUBLE, CONSTANT_FIELDREF, CONSTANT_FLOAT, CONSTANT_INTEGER, CONSTANT_INTERFACEMETHODREF, CONSTANT_LONG, CONSTANT_METHODREF, CONSTANT_NAMEANDTYPE, CONSTANT_STRING, CONSTANT_UTF8, ERROR_STACK, FIELDREF, GETFIELD_STACK, GETSTATIC_STACK, IFMETHOD, IMPLICIT, INC, INVOKEINTERFACE_STACK, INVOKESPECIAL_STACK, INVOKESTATIC_STACK, INVOKEVIRTUAL_STACK, LDC_STACK, LS, LV, MAGIC, METHODREF, MULTIARRAY_STACK, PUTFIELD_STACK, PUTSTATIC_STACK, REFTYPEREF, RT, SIMPLE, SUCC_BRANCH, SUCC_GOTO, SUCC_JSR, SUCC_LOOKUPSWITCH, SUCC_NEXT, SUCC_NONE, SUCC_RET, SUCC_TABLESWITCH, T_BOOLEAN, T_BYTE, T_CHAR, T_DOUBLE, T_FLOAT, T_INT, T_LONG, T_REFERENCE, T_SHORT, T_VOID, TS, TYPE_BYTE, VBRANCH

Constructor Summary

Constructors

Constructor and Description
InstructionType(String nameInit, int opcodeInit, int[] argsInit, int encodingInit, int stackDiffInit, int succTypeInit)

Method Summary

Modifier and Type	Method and Description
void	checkArgs(Object[] argValues)
void	checkSimpleArgs(Object[] argValues)
int	getMaxLength(Output dest, Object[] argValues)
int	getVariableLength(Code context, int ofs, Object[] argValues)
boolean	isVariable()
void	ofsToIdx(Code context, int ofs, Object[] argValues) Fixup.
String	toString()
void	write(Output dest, Object[] values)
void	writeCNST(Output dest, Object val)

Methods inherited from class java.lang.Object

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

Field Detail

opcode

public final int opcode

name

public final String name

stackDiff

public final int stackDiff

succType

public final int succType

args

public final int[] args

depends on encoding: SIMPLE: argument types LV: opcode_0, opcode_1, opcode_2, opcode_3 BRANCH: opcodeNot // opcode for negation VBRANCH: opcodeW otherwise: empty

encoding

public final int encoding

length

public int length

for SIMPLE encodings only; effectively a final variable.

Constructor Detail

InstructionType

public InstructionType(String nameInit,
                       int opcodeInit,
                       int[] argsInit,
                       int encodingInit,
                       int stackDiffInit,
                       int succTypeInit)

Method Detail

checkArgs

public void checkArgs(Object[] argValues)

checkSimpleArgs

public void checkSimpleArgs(Object[] argValues)

toString

public String toString()

Overrides:

toString in class Object

ofsToIdx

public void ofsToIdx(Code context,
                     int ofs,
                     Object[] argValues)

Fixup. Turn ofs into idx.

write

public void write(Output dest,
                  Object[] values)
           throws IOException

Throws:

IOException

writeCNST

public void writeCNST(Output dest,
                      Object val)
               throws IOException

Throws:

IOException

isVariable

public boolean isVariable()

getVariableLength

public int getVariableLength(Code context,
                             int ofs,
                             Object[] argValues)

getMaxLength

public int getMaxLength(Output dest,
                        Object[] argValues)