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Apache Commons Bytecode Engineering Library, with type annotations
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.apache.bcel.generic;
import org.apache.bcel.Const;
/**
* 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);
*
* @deprecated (since 6.0) Do not use. Use InstructionConst instead.
*/
@Deprecated
public interface InstructionConstants {
/** Predefined instruction objects
*/
/*
* NOTE these are not currently immutable, because Instruction
* has mutable protected fields opcode and length.
*/
Instruction NOP = new NOP();
Instruction ACONST_NULL = new ACONST_NULL();
Instruction ICONST_M1 = new ICONST(-1);
Instruction ICONST_0 = new ICONST(0);
Instruction ICONST_1 = new ICONST(1);
Instruction ICONST_2 = new ICONST(2);
Instruction ICONST_3 = new ICONST(3);
Instruction ICONST_4 = new ICONST(4);
Instruction ICONST_5 = new ICONST(5);
Instruction LCONST_0 = new LCONST(0);
Instruction LCONST_1 = new LCONST(1);
Instruction FCONST_0 = new FCONST(0);
Instruction FCONST_1 = new FCONST(1);
Instruction FCONST_2 = new FCONST(2);
Instruction DCONST_0 = new DCONST(0);
Instruction DCONST_1 = new DCONST(1);
ArrayInstruction IALOAD = new IALOAD();
ArrayInstruction LALOAD = new LALOAD();
ArrayInstruction FALOAD = new FALOAD();
ArrayInstruction DALOAD = new DALOAD();
ArrayInstruction AALOAD = new AALOAD();
ArrayInstruction BALOAD = new BALOAD();
ArrayInstruction CALOAD = new CALOAD();
ArrayInstruction SALOAD = new SALOAD();
ArrayInstruction IASTORE = new IASTORE();
ArrayInstruction LASTORE = new LASTORE();
ArrayInstruction FASTORE = new FASTORE();
ArrayInstruction DASTORE = new DASTORE();
ArrayInstruction AASTORE = new AASTORE();
ArrayInstruction BASTORE = new BASTORE();
ArrayInstruction CASTORE = new CASTORE();
ArrayInstruction SASTORE = new SASTORE();
StackInstruction POP = new POP();
StackInstruction POP2 = new POP2();
StackInstruction DUP = new DUP();
StackInstruction DUP_X1 = new DUP_X1();
StackInstruction DUP_X2 = new DUP_X2();
StackInstruction DUP2 = new DUP2();
StackInstruction DUP2_X1 = new DUP2_X1();
StackInstruction DUP2_X2 = new DUP2_X2();
StackInstruction SWAP = new SWAP();
ArithmeticInstruction IADD = new IADD();
ArithmeticInstruction LADD = new LADD();
ArithmeticInstruction FADD = new FADD();
ArithmeticInstruction DADD = new DADD();
ArithmeticInstruction ISUB = new ISUB();
ArithmeticInstruction LSUB = new LSUB();
ArithmeticInstruction FSUB = new FSUB();
ArithmeticInstruction DSUB = new DSUB();
ArithmeticInstruction IMUL = new IMUL();
ArithmeticInstruction LMUL = new LMUL();
ArithmeticInstruction FMUL = new FMUL();
ArithmeticInstruction DMUL = new DMUL();
ArithmeticInstruction IDIV = new IDIV();
ArithmeticInstruction LDIV = new LDIV();
ArithmeticInstruction FDIV = new FDIV();
ArithmeticInstruction DDIV = new DDIV();
ArithmeticInstruction IREM = new IREM();
ArithmeticInstruction LREM = new LREM();
ArithmeticInstruction FREM = new FREM();
ArithmeticInstruction DREM = new DREM();
ArithmeticInstruction INEG = new INEG();
ArithmeticInstruction LNEG = new LNEG();
ArithmeticInstruction FNEG = new FNEG();
ArithmeticInstruction DNEG = new DNEG();
ArithmeticInstruction ISHL = new ISHL();
ArithmeticInstruction LSHL = new LSHL();
ArithmeticInstruction ISHR = new ISHR();
ArithmeticInstruction LSHR = new LSHR();
ArithmeticInstruction IUSHR = new IUSHR();
ArithmeticInstruction LUSHR = new LUSHR();
ArithmeticInstruction IAND = new IAND();
ArithmeticInstruction LAND = new LAND();
ArithmeticInstruction IOR = new IOR();
ArithmeticInstruction LOR = new LOR();
ArithmeticInstruction IXOR = new IXOR();
ArithmeticInstruction LXOR = new LXOR();
ConversionInstruction I2L = new I2L();
ConversionInstruction I2F = new I2F();
ConversionInstruction I2D = new I2D();
ConversionInstruction L2I = new L2I();
ConversionInstruction L2F = new L2F();
ConversionInstruction L2D = new L2D();
ConversionInstruction F2I = new F2I();
ConversionInstruction F2L = new F2L();
ConversionInstruction F2D = new F2D();
ConversionInstruction D2I = new D2I();
ConversionInstruction D2L = new D2L();
ConversionInstruction D2F = new D2F();
ConversionInstruction I2B = new I2B();
ConversionInstruction I2C = new I2C();
ConversionInstruction I2S = new I2S();
Instruction LCMP = new LCMP();
Instruction FCMPL = new FCMPL();
Instruction FCMPG = new FCMPG();
Instruction DCMPL = new DCMPL();
Instruction DCMPG = new DCMPG();
ReturnInstruction IRETURN = new IRETURN();
ReturnInstruction LRETURN = new LRETURN();
ReturnInstruction FRETURN = new FRETURN();
ReturnInstruction DRETURN = new DRETURN();
ReturnInstruction ARETURN = new ARETURN();
ReturnInstruction RETURN = new RETURN();
Instruction ARRAYLENGTH = new ARRAYLENGTH();
Instruction ATHROW = new ATHROW();
Instruction MONITORENTER = new MONITORENTER();
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().
*/
LocalVariableInstruction THIS = new ALOAD(0);
LocalVariableInstruction ALOAD_0 = THIS;
LocalVariableInstruction ALOAD_1 = new ALOAD(1);
LocalVariableInstruction ALOAD_2 = new ALOAD(2);
LocalVariableInstruction ILOAD_0 = new ILOAD(0);
LocalVariableInstruction ILOAD_1 = new ILOAD(1);
LocalVariableInstruction ILOAD_2 = new ILOAD(2);
LocalVariableInstruction ASTORE_0 = new ASTORE(0);
LocalVariableInstruction ASTORE_1 = new ASTORE(1);
LocalVariableInstruction ASTORE_2 = new ASTORE(2);
LocalVariableInstruction ISTORE_0 = new ISTORE(0);
LocalVariableInstruction ISTORE_1 = new ISTORE(1);
LocalVariableInstruction ISTORE_2 = new ISTORE(2);
/** Get object via its opcode, for immutable instructions like
* branch instructions entries are set to null.
*/
Instruction[] INSTRUCTIONS = new Instruction[256];
/** Interfaces may have no static initializers, so we simulate this
* with an inner class.
*/
Clinit bla = new Clinit();
class Clinit {
Clinit() {
INSTRUCTIONS[Const.NOP] = NOP;
INSTRUCTIONS[Const.ACONST_NULL] = ACONST_NULL;
INSTRUCTIONS[Const.ICONST_M1] = ICONST_M1;
INSTRUCTIONS[Const.ICONST_0] = ICONST_0;
INSTRUCTIONS[Const.ICONST_1] = ICONST_1;
INSTRUCTIONS[Const.ICONST_2] = ICONST_2;
INSTRUCTIONS[Const.ICONST_3] = ICONST_3;
INSTRUCTIONS[Const.ICONST_4] = ICONST_4;
INSTRUCTIONS[Const.ICONST_5] = ICONST_5;
INSTRUCTIONS[Const.LCONST_0] = LCONST_0;
INSTRUCTIONS[Const.LCONST_1] = LCONST_1;
INSTRUCTIONS[Const.FCONST_0] = FCONST_0;
INSTRUCTIONS[Const.FCONST_1] = FCONST_1;
INSTRUCTIONS[Const.FCONST_2] = FCONST_2;
INSTRUCTIONS[Const.DCONST_0] = DCONST_0;
INSTRUCTIONS[Const.DCONST_1] = DCONST_1;
INSTRUCTIONS[Const.IALOAD] = IALOAD;
INSTRUCTIONS[Const.LALOAD] = LALOAD;
INSTRUCTIONS[Const.FALOAD] = FALOAD;
INSTRUCTIONS[Const.DALOAD] = DALOAD;
INSTRUCTIONS[Const.AALOAD] = AALOAD;
INSTRUCTIONS[Const.BALOAD] = BALOAD;
INSTRUCTIONS[Const.CALOAD] = CALOAD;
INSTRUCTIONS[Const.SALOAD] = SALOAD;
INSTRUCTIONS[Const.IASTORE] = IASTORE;
INSTRUCTIONS[Const.LASTORE] = LASTORE;
INSTRUCTIONS[Const.FASTORE] = FASTORE;
INSTRUCTIONS[Const.DASTORE] = DASTORE;
INSTRUCTIONS[Const.AASTORE] = AASTORE;
INSTRUCTIONS[Const.BASTORE] = BASTORE;
INSTRUCTIONS[Const.CASTORE] = CASTORE;
INSTRUCTIONS[Const.SASTORE] = SASTORE;
INSTRUCTIONS[Const.POP] = POP;
INSTRUCTIONS[Const.POP2] = POP2;
INSTRUCTIONS[Const.DUP] = DUP;
INSTRUCTIONS[Const.DUP_X1] = DUP_X1;
INSTRUCTIONS[Const.DUP_X2] = DUP_X2;
INSTRUCTIONS[Const.DUP2] = DUP2;
INSTRUCTIONS[Const.DUP2_X1] = DUP2_X1;
INSTRUCTIONS[Const.DUP2_X2] = DUP2_X2;
INSTRUCTIONS[Const.SWAP] = SWAP;
INSTRUCTIONS[Const.IADD] = IADD;
INSTRUCTIONS[Const.LADD] = LADD;
INSTRUCTIONS[Const.FADD] = FADD;
INSTRUCTIONS[Const.DADD] = DADD;
INSTRUCTIONS[Const.ISUB] = ISUB;
INSTRUCTIONS[Const.LSUB] = LSUB;
INSTRUCTIONS[Const.FSUB] = FSUB;
INSTRUCTIONS[Const.DSUB] = DSUB;
INSTRUCTIONS[Const.IMUL] = IMUL;
INSTRUCTIONS[Const.LMUL] = LMUL;
INSTRUCTIONS[Const.FMUL] = FMUL;
INSTRUCTIONS[Const.DMUL] = DMUL;
INSTRUCTIONS[Const.IDIV] = IDIV;
INSTRUCTIONS[Const.LDIV] = LDIV;
INSTRUCTIONS[Const.FDIV] = FDIV;
INSTRUCTIONS[Const.DDIV] = DDIV;
INSTRUCTIONS[Const.IREM] = IREM;
INSTRUCTIONS[Const.LREM] = LREM;
INSTRUCTIONS[Const.FREM] = FREM;
INSTRUCTIONS[Const.DREM] = DREM;
INSTRUCTIONS[Const.INEG] = INEG;
INSTRUCTIONS[Const.LNEG] = LNEG;
INSTRUCTIONS[Const.FNEG] = FNEG;
INSTRUCTIONS[Const.DNEG] = DNEG;
INSTRUCTIONS[Const.ISHL] = ISHL;
INSTRUCTIONS[Const.LSHL] = LSHL;
INSTRUCTIONS[Const.ISHR] = ISHR;
INSTRUCTIONS[Const.LSHR] = LSHR;
INSTRUCTIONS[Const.IUSHR] = IUSHR;
INSTRUCTIONS[Const.LUSHR] = LUSHR;
INSTRUCTIONS[Const.IAND] = IAND;
INSTRUCTIONS[Const.LAND] = LAND;
INSTRUCTIONS[Const.IOR] = IOR;
INSTRUCTIONS[Const.LOR] = LOR;
INSTRUCTIONS[Const.IXOR] = IXOR;
INSTRUCTIONS[Const.LXOR] = LXOR;
INSTRUCTIONS[Const.I2L] = I2L;
INSTRUCTIONS[Const.I2F] = I2F;
INSTRUCTIONS[Const.I2D] = I2D;
INSTRUCTIONS[Const.L2I] = L2I;
INSTRUCTIONS[Const.L2F] = L2F;
INSTRUCTIONS[Const.L2D] = L2D;
INSTRUCTIONS[Const.F2I] = F2I;
INSTRUCTIONS[Const.F2L] = F2L;
INSTRUCTIONS[Const.F2D] = F2D;
INSTRUCTIONS[Const.D2I] = D2I;
INSTRUCTIONS[Const.D2L] = D2L;
INSTRUCTIONS[Const.D2F] = D2F;
INSTRUCTIONS[Const.I2B] = I2B;
INSTRUCTIONS[Const.I2C] = I2C;
INSTRUCTIONS[Const.I2S] = I2S;
INSTRUCTIONS[Const.LCMP] = LCMP;
INSTRUCTIONS[Const.FCMPL] = FCMPL;
INSTRUCTIONS[Const.FCMPG] = FCMPG;
INSTRUCTIONS[Const.DCMPL] = DCMPL;
INSTRUCTIONS[Const.DCMPG] = DCMPG;
INSTRUCTIONS[Const.IRETURN] = IRETURN;
INSTRUCTIONS[Const.LRETURN] = LRETURN;
INSTRUCTIONS[Const.FRETURN] = FRETURN;
INSTRUCTIONS[Const.DRETURN] = DRETURN;
INSTRUCTIONS[Const.ARETURN] = ARETURN;
INSTRUCTIONS[Const.RETURN] = RETURN;
INSTRUCTIONS[Const.ARRAYLENGTH] = ARRAYLENGTH;
INSTRUCTIONS[Const.ATHROW] = ATHROW;
INSTRUCTIONS[Const.MONITORENTER] = MONITORENTER;
INSTRUCTIONS[Const.MONITOREXIT] = MONITOREXIT;
}
}
}