Java example source code file (InstructionConstants.java)
The InstructionConstants.java Java example source code
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package com.sun.org.apache.bcel.internal.generic;
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import com.sun.org.apache.bcel.internal.Constants;
/**
* This interface contains shareable instruction objects.
*
* In order to save memory you can use some instructions multiply,
* since they have an immutable state and are directly derived from
* Instruction. I.e. they have no instance fields that could be
* changed. Since some of these instructions like ICONST_0 occur
* very frequently this can save a lot of time and space. This
* feature is an adaptation of the FlyWeight design pattern, we
* just use an array instead of a factory.
*
* The Instructions can also accessed directly under their names, so
* it's possible to write il.append(Instruction.ICONST_0);
*
* @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm
*/
public interface InstructionConstants {
/** Predefined instruction objects
*/
public static final Instruction NOP = new NOP();
public static final Instruction ACONST_NULL = new ACONST_NULL();
public static final Instruction ICONST_M1 = new ICONST(-1);
public static final Instruction ICONST_0 = new ICONST(0);
public static final Instruction ICONST_1 = new ICONST(1);
public static final Instruction ICONST_2 = new ICONST(2);
public static final Instruction ICONST_3 = new ICONST(3);
public static final Instruction ICONST_4 = new ICONST(4);
public static final Instruction ICONST_5 = new ICONST(5);
public static final Instruction LCONST_0 = new LCONST(0);
public static final Instruction LCONST_1 = new LCONST(1);
public static final Instruction FCONST_0 = new FCONST(0);
public static final Instruction FCONST_1 = new FCONST(1);
public static final Instruction FCONST_2 = new FCONST(2);
public static final Instruction DCONST_0 = new DCONST(0);
public static final Instruction DCONST_1 = new DCONST(1);
public static final ArrayInstruction IALOAD = new IALOAD();
public static final ArrayInstruction LALOAD = new LALOAD();
public static final ArrayInstruction FALOAD = new FALOAD();
public static final ArrayInstruction DALOAD = new DALOAD();
public static final ArrayInstruction AALOAD = new AALOAD();
public static final ArrayInstruction BALOAD = new BALOAD();
public static final ArrayInstruction CALOAD = new CALOAD();
public static final ArrayInstruction SALOAD = new SALOAD();
public static final ArrayInstruction IASTORE = new IASTORE();
public static final ArrayInstruction LASTORE = new LASTORE();
public static final ArrayInstruction FASTORE = new FASTORE();
public static final ArrayInstruction DASTORE = new DASTORE();
public static final ArrayInstruction AASTORE = new AASTORE();
public static final ArrayInstruction BASTORE = new BASTORE();
public static final ArrayInstruction CASTORE = new CASTORE();
public static final ArrayInstruction SASTORE = new SASTORE();
public static final StackInstruction POP = new POP();
public static final StackInstruction POP2 = new POP2();
public static final StackInstruction DUP = new DUP();
public static final StackInstruction DUP_X1 = new DUP_X1();
public static final StackInstruction DUP_X2 = new DUP_X2();
public static final StackInstruction DUP2 = new DUP2();
public static final StackInstruction DUP2_X1 = new DUP2_X1();
public static final StackInstruction DUP2_X2 = new DUP2_X2();
public static final StackInstruction SWAP = new SWAP();
public static final ArithmeticInstruction IADD = new IADD();
public static final ArithmeticInstruction LADD = new LADD();
public static final ArithmeticInstruction FADD = new FADD();
public static final ArithmeticInstruction DADD = new DADD();
public static final ArithmeticInstruction ISUB = new ISUB();
public static final ArithmeticInstruction LSUB = new LSUB();
public static final ArithmeticInstruction FSUB = new FSUB();
public static final ArithmeticInstruction DSUB = new DSUB();
public static final ArithmeticInstruction IMUL = new IMUL();
public static final ArithmeticInstruction LMUL = new LMUL();
public static final ArithmeticInstruction FMUL = new FMUL();
public static final ArithmeticInstruction DMUL = new DMUL();
public static final ArithmeticInstruction IDIV = new IDIV();
public static final ArithmeticInstruction LDIV = new LDIV();
public static final ArithmeticInstruction FDIV = new FDIV();
public static final ArithmeticInstruction DDIV = new DDIV();
public static final ArithmeticInstruction IREM = new IREM();
public static final ArithmeticInstruction LREM = new LREM();
public static final ArithmeticInstruction FREM = new FREM();
public static final ArithmeticInstruction DREM = new DREM();
public static final ArithmeticInstruction INEG = new INEG();
public static final ArithmeticInstruction LNEG = new LNEG();
public static final ArithmeticInstruction FNEG = new FNEG();
public static final ArithmeticInstruction DNEG = new DNEG();
public static final ArithmeticInstruction ISHL = new ISHL();
public static final ArithmeticInstruction LSHL = new LSHL();
public static final ArithmeticInstruction ISHR = new ISHR();
public static final ArithmeticInstruction LSHR = new LSHR();
public static final ArithmeticInstruction IUSHR = new IUSHR();
public static final ArithmeticInstruction LUSHR = new LUSHR();
public static final ArithmeticInstruction IAND = new IAND();
public static final ArithmeticInstruction LAND = new LAND();
public static final ArithmeticInstruction IOR = new IOR();
public static final ArithmeticInstruction LOR = new LOR();
public static final ArithmeticInstruction IXOR = new IXOR();
public static final ArithmeticInstruction LXOR = new LXOR();
public static final ConversionInstruction I2L = new I2L();
public static final ConversionInstruction I2F = new I2F();
public static final ConversionInstruction I2D = new I2D();
public static final ConversionInstruction L2I = new L2I();
public static final ConversionInstruction L2F = new L2F();
public static final ConversionInstruction L2D = new L2D();
public static final ConversionInstruction F2I = new F2I();
public static final ConversionInstruction F2L = new F2L();
public static final ConversionInstruction F2D = new F2D();
public static final ConversionInstruction D2I = new D2I();
public static final ConversionInstruction D2L = new D2L();
public static final ConversionInstruction D2F = new D2F();
public static final ConversionInstruction I2B = new I2B();
public static final ConversionInstruction I2C = new I2C();
public static final ConversionInstruction I2S = new I2S();
public static final Instruction LCMP = new LCMP();
public static final Instruction FCMPL = new FCMPL();
public static final Instruction FCMPG = new FCMPG();
public static final Instruction DCMPL = new DCMPL();
public static final Instruction DCMPG = new DCMPG();
public static final ReturnInstruction IRETURN = new IRETURN();
public static final ReturnInstruction LRETURN = new LRETURN();
public static final ReturnInstruction FRETURN = new FRETURN();
public static final ReturnInstruction DRETURN = new DRETURN();
public static final ReturnInstruction ARETURN = new ARETURN();
public static final ReturnInstruction RETURN = new RETURN();
public static final Instruction ARRAYLENGTH = new ARRAYLENGTH();
public static final Instruction ATHROW = new ATHROW();
public static final Instruction MONITORENTER = new MONITORENTER();
public static final Instruction MONITOREXIT = new MONITOREXIT();
/** You can use these constants in multiple places safely, if you can guarantee
* that you will never alter their internal values, e.g. call setIndex().
*/
public static final LocalVariableInstruction THIS = new ALOAD(0);
public static final LocalVariableInstruction ALOAD_0 = THIS;
public static final LocalVariableInstruction ALOAD_1 = new ALOAD(1);
public static final LocalVariableInstruction ALOAD_2 = new ALOAD(2);
public static final LocalVariableInstruction ILOAD_0 = new ILOAD(0);
public static final LocalVariableInstruction ILOAD_1 = new ILOAD(1);
public static final LocalVariableInstruction ILOAD_2 = new ILOAD(2);
public static final LocalVariableInstruction ASTORE_0 = new ASTORE(0);
public static final LocalVariableInstruction ASTORE_1 = new ASTORE(1);
public static final LocalVariableInstruction ASTORE_2 = new ASTORE(2);
public static final LocalVariableInstruction ISTORE_0 = new ISTORE(0);
public static final LocalVariableInstruction ISTORE_1 = new ISTORE(1);
public static final LocalVariableInstruction ISTORE_2 = new ISTORE(2);
/** Get object via its opcode, for immutable instructions like
* branch instructions entries are set to null.
*/
public static final Instruction[] INSTRUCTIONS = new Instruction[256];
/** Interfaces may have no static initializers, so we simulate this
* with an inner class.
*/
static final Clinit bla = new Clinit();
static class Clinit {
Clinit() {
INSTRUCTIONS[Constants.NOP] = NOP;
INSTRUCTIONS[Constants.ACONST_NULL] = ACONST_NULL;
INSTRUCTIONS[Constants.ICONST_M1] = ICONST_M1;
INSTRUCTIONS[Constants.ICONST_0] = ICONST_0;
INSTRUCTIONS[Constants.ICONST_1] = ICONST_1;
INSTRUCTIONS[Constants.ICONST_2] = ICONST_2;
INSTRUCTIONS[Constants.ICONST_3] = ICONST_3;
INSTRUCTIONS[Constants.ICONST_4] = ICONST_4;
INSTRUCTIONS[Constants.ICONST_5] = ICONST_5;
INSTRUCTIONS[Constants.LCONST_0] = LCONST_0;
INSTRUCTIONS[Constants.LCONST_1] = LCONST_1;
INSTRUCTIONS[Constants.FCONST_0] = FCONST_0;
INSTRUCTIONS[Constants.FCONST_1] = FCONST_1;
INSTRUCTIONS[Constants.FCONST_2] = FCONST_2;
INSTRUCTIONS[Constants.DCONST_0] = DCONST_0;
INSTRUCTIONS[Constants.DCONST_1] = DCONST_1;
INSTRUCTIONS[Constants.IALOAD] = IALOAD;
INSTRUCTIONS[Constants.LALOAD] = LALOAD;
INSTRUCTIONS[Constants.FALOAD] = FALOAD;
INSTRUCTIONS[Constants.DALOAD] = DALOAD;
INSTRUCTIONS[Constants.AALOAD] = AALOAD;
INSTRUCTIONS[Constants.BALOAD] = BALOAD;
INSTRUCTIONS[Constants.CALOAD] = CALOAD;
INSTRUCTIONS[Constants.SALOAD] = SALOAD;
INSTRUCTIONS[Constants.IASTORE] = IASTORE;
INSTRUCTIONS[Constants.LASTORE] = LASTORE;
INSTRUCTIONS[Constants.FASTORE] = FASTORE;
INSTRUCTIONS[Constants.DASTORE] = DASTORE;
INSTRUCTIONS[Constants.AASTORE] = AASTORE;
INSTRUCTIONS[Constants.BASTORE] = BASTORE;
INSTRUCTIONS[Constants.CASTORE] = CASTORE;
INSTRUCTIONS[Constants.SASTORE] = SASTORE;
INSTRUCTIONS[Constants.POP] = POP;
INSTRUCTIONS[Constants.POP2] = POP2;
INSTRUCTIONS[Constants.DUP] = DUP;
INSTRUCTIONS[Constants.DUP_X1] = DUP_X1;
INSTRUCTIONS[Constants.DUP_X2] = DUP_X2;
INSTRUCTIONS[Constants.DUP2] = DUP2;
INSTRUCTIONS[Constants.DUP2_X1] = DUP2_X1;
INSTRUCTIONS[Constants.DUP2_X2] = DUP2_X2;
INSTRUCTIONS[Constants.SWAP] = SWAP;
INSTRUCTIONS[Constants.IADD] = IADD;
INSTRUCTIONS[Constants.LADD] = LADD;
INSTRUCTIONS[Constants.FADD] = FADD;
INSTRUCTIONS[Constants.DADD] = DADD;
INSTRUCTIONS[Constants.ISUB] = ISUB;
INSTRUCTIONS[Constants.LSUB] = LSUB;
INSTRUCTIONS[Constants.FSUB] = FSUB;
INSTRUCTIONS[Constants.DSUB] = DSUB;
INSTRUCTIONS[Constants.IMUL] = IMUL;
INSTRUCTIONS[Constants.LMUL] = LMUL;
INSTRUCTIONS[Constants.FMUL] = FMUL;
INSTRUCTIONS[Constants.DMUL] = DMUL;
INSTRUCTIONS[Constants.IDIV] = IDIV;
INSTRUCTIONS[Constants.LDIV] = LDIV;
INSTRUCTIONS[Constants.FDIV] = FDIV;
INSTRUCTIONS[Constants.DDIV] = DDIV;
INSTRUCTIONS[Constants.IREM] = IREM;
INSTRUCTIONS[Constants.LREM] = LREM;
INSTRUCTIONS[Constants.FREM] = FREM;
INSTRUCTIONS[Constants.DREM] = DREM;
INSTRUCTIONS[Constants.INEG] = INEG;
INSTRUCTIONS[Constants.LNEG] = LNEG;
INSTRUCTIONS[Constants.FNEG] = FNEG;
INSTRUCTIONS[Constants.DNEG] = DNEG;
INSTRUCTIONS[Constants.ISHL] = ISHL;
INSTRUCTIONS[Constants.LSHL] = LSHL;
INSTRUCTIONS[Constants.ISHR] = ISHR;
INSTRUCTIONS[Constants.LSHR] = LSHR;
INSTRUCTIONS[Constants.IUSHR] = IUSHR;
INSTRUCTIONS[Constants.LUSHR] = LUSHR;
INSTRUCTIONS[Constants.IAND] = IAND;
INSTRUCTIONS[Constants.LAND] = LAND;
INSTRUCTIONS[Constants.IOR] = IOR;
INSTRUCTIONS[Constants.LOR] = LOR;
INSTRUCTIONS[Constants.IXOR] = IXOR;
INSTRUCTIONS[Constants.LXOR] = LXOR;
INSTRUCTIONS[Constants.I2L] = I2L;
INSTRUCTIONS[Constants.I2F] = I2F;
INSTRUCTIONS[Constants.I2D] = I2D;
INSTRUCTIONS[Constants.L2I] = L2I;
INSTRUCTIONS[Constants.L2F] = L2F;
INSTRUCTIONS[Constants.L2D] = L2D;
INSTRUCTIONS[Constants.F2I] = F2I;
INSTRUCTIONS[Constants.F2L] = F2L;
INSTRUCTIONS[Constants.F2D] = F2D;
INSTRUCTIONS[Constants.D2I] = D2I;
INSTRUCTIONS[Constants.D2L] = D2L;
INSTRUCTIONS[Constants.D2F] = D2F;
INSTRUCTIONS[Constants.I2B] = I2B;
INSTRUCTIONS[Constants.I2C] = I2C;
INSTRUCTIONS[Constants.I2S] = I2S;
INSTRUCTIONS[Constants.LCMP] = LCMP;
INSTRUCTIONS[Constants.FCMPL] = FCMPL;
INSTRUCTIONS[Constants.FCMPG] = FCMPG;
INSTRUCTIONS[Constants.DCMPL] = DCMPL;
INSTRUCTIONS[Constants.DCMPG] = DCMPG;
INSTRUCTIONS[Constants.IRETURN] = IRETURN;
INSTRUCTIONS[Constants.LRETURN] = LRETURN;
INSTRUCTIONS[Constants.FRETURN] = FRETURN;
INSTRUCTIONS[Constants.DRETURN] = DRETURN;
INSTRUCTIONS[Constants.ARETURN] = ARETURN;
INSTRUCTIONS[Constants.RETURN] = RETURN;
INSTRUCTIONS[Constants.ARRAYLENGTH] = ARRAYLENGTH;
INSTRUCTIONS[Constants.ATHROW] = ATHROW;
INSTRUCTIONS[Constants.MONITORENTER] = MONITORENTER;
INSTRUCTIONS[Constants.MONITOREXIT] = MONITOREXIT;
}
}
}
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