ASM: a very small and fast Java bytecode manipulation framework
Copyright (c) 2000-2011 INRIA, France Telecom
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   documentation and/or other materials provided with the distribution.
3. Neither the name of the copyright holders nor the names of its
   contributors may be used to endorse or promote products derived from
   this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
THE POSSIBILITY OF SUCH DAMAGE.
/***
 * ASM: a very small and fast Java bytecode manipulation framework
 * Copyright (c) 2000-2011 INRIA, France Telecom
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the copyright holders nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

package org.objectweb.asm.commons;

import org.objectweb.asm.Handle;
import org.objectweb.asm.Label;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.Type;

A MethodVisitor providing a more detailed API to generate and transform instructions. 
Author:
Eric Bruneton/**
 * A {@link MethodVisitor} providing a more detailed API to generate and
 * transform instructions.
 * 
 * @author Eric Bruneton
 */
public class InstructionAdapter extends MethodVisitor {

    public final static Type OBJECT_TYPE = Type.getType("Ljava/lang/Object;");

    
Creates a new InstructionAdapter. Subclasses must not use this
constructor. Instead, they must use the InstructionAdapter(int, MethodVisitor) version. 
Params:
mv – 
           the method visitor to which this adapter delegates calls./**
     * Creates a new {@link InstructionAdapter}. <i>Subclasses must not use this
     * constructor</i>. Instead, they must use the
     * {@link #InstructionAdapter(int, MethodVisitor)} version.
     * 
     * @param mv
     *            the method visitor to which this adapter delegates calls.
     */
    public InstructionAdapter(final MethodVisitor mv) {
        this(Opcodes.ASM4, mv);
    }

    
Creates a new InstructionAdapter. 
Params:
api –  the ASM API version implemented by this visitor. Must be one of Opcodes.ASM4.
mv – 
           the method visitor to which this adapter delegates calls./**
     * Creates a new {@link InstructionAdapter}.
     * 
     * @param api
     *            the ASM API version implemented by this visitor. Must be one
     *            of {@link Opcodes#ASM4}.
     * @param mv
     *            the method visitor to which this adapter delegates calls.
     */
    protected InstructionAdapter(final int api, final MethodVisitor mv) {
        super(api, mv);
    }

    @Override
    public void visitInsn(final int opcode) {
        switch (opcode) {
        case Opcodes.NOP:
            nop();
            break;
        case Opcodes.ACONST_NULL:
            aconst(null);
            break;
        case Opcodes.ICONST_M1:
        case Opcodes.ICONST_0:
        case Opcodes.ICONST_1:
        case Opcodes.ICONST_2:
        case Opcodes.ICONST_3:
        case Opcodes.ICONST_4:
        case Opcodes.ICONST_5:
            iconst(opcode - Opcodes.ICONST_0);
            break;
        case Opcodes.LCONST_0:
        case Opcodes.LCONST_1:
            lconst(opcode - Opcodes.LCONST_0);
            break;
        case Opcodes.FCONST_0:
        case Opcodes.FCONST_1:
        case Opcodes.FCONST_2:
            fconst(opcode - Opcodes.FCONST_0);
            break;
        case Opcodes.DCONST_0:
        case Opcodes.DCONST_1:
            dconst(opcode - Opcodes.DCONST_0);
            break;
        case Opcodes.IALOAD:
            aload(Type.INT_TYPE);
            break;
        case Opcodes.LALOAD:
            aload(Type.LONG_TYPE);
            break;
        case Opcodes.FALOAD:
            aload(Type.FLOAT_TYPE);
            break;
        case Opcodes.DALOAD:
            aload(Type.DOUBLE_TYPE);
            break;
        case Opcodes.AALOAD:
            aload(OBJECT_TYPE);
            break;
        case Opcodes.BALOAD:
            aload(Type.BYTE_TYPE);
            break;
        case Opcodes.CALOAD:
            aload(Type.CHAR_TYPE);
            break;
        case Opcodes.SALOAD:
            aload(Type.SHORT_TYPE);
            break;
        case Opcodes.IASTORE:
            astore(Type.INT_TYPE);
            break;
        case Opcodes.LASTORE:
            astore(Type.LONG_TYPE);
            break;
        case Opcodes.FASTORE:
            astore(Type.FLOAT_TYPE);
            break;
        case Opcodes.DASTORE:
            astore(Type.DOUBLE_TYPE);
            break;
        case Opcodes.AASTORE:
            astore(OBJECT_TYPE);
            break;
        case Opcodes.BASTORE:
            astore(Type.BYTE_TYPE);
            break;
        case Opcodes.CASTORE:
            astore(Type.CHAR_TYPE);
            break;
        case Opcodes.SASTORE:
            astore(Type.SHORT_TYPE);
            break;
        case Opcodes.POP:
            pop();
            break;
        case Opcodes.POP2:
            pop2();
            break;
        case Opcodes.DUP:
            dup();
            break;
        case Opcodes.DUP_X1:
            dupX1();
            break;
        case Opcodes.DUP_X2:
            dupX2();
            break;
        case Opcodes.DUP2:
            dup2();
            break;
        case Opcodes.DUP2_X1:
            dup2X1();
            break;
        case Opcodes.DUP2_X2:
            dup2X2();
            break;
        case Opcodes.SWAP:
            swap();
            break;
        case Opcodes.IADD:
            add(Type.INT_TYPE);
            break;
        case Opcodes.LADD:
            add(Type.LONG_TYPE);
            break;
        case Opcodes.FADD:
            add(Type.FLOAT_TYPE);
            break;
        case Opcodes.DADD:
            add(Type.DOUBLE_TYPE);
            break;
        case Opcodes.ISUB:
            sub(Type.INT_TYPE);
            break;
        case Opcodes.LSUB:
            sub(Type.LONG_TYPE);
            break;
        case Opcodes.FSUB:
            sub(Type.FLOAT_TYPE);
            break;
        case Opcodes.DSUB:
            sub(Type.DOUBLE_TYPE);
            break;
        case Opcodes.IMUL:
            mul(Type.INT_TYPE);
            break;
        case Opcodes.LMUL:
            mul(Type.LONG_TYPE);
            break;
        case Opcodes.FMUL:
            mul(Type.FLOAT_TYPE);
            break;
        case Opcodes.DMUL:
            mul(Type.DOUBLE_TYPE);
            break;
        case Opcodes.IDIV:
            div(Type.INT_TYPE);
            break;
        case Opcodes.LDIV:
            div(Type.LONG_TYPE);
            break;
        case Opcodes.FDIV:
            div(Type.FLOAT_TYPE);
            break;
        case Opcodes.DDIV:
            div(Type.DOUBLE_TYPE);
            break;
        case Opcodes.IREM:
            rem(Type.INT_TYPE);
            break;
        case Opcodes.LREM:
            rem(Type.LONG_TYPE);
            break;
        case Opcodes.FREM:
            rem(Type.FLOAT_TYPE);
            break;
        case Opcodes.DREM:
            rem(Type.DOUBLE_TYPE);
            break;
        case Opcodes.INEG:
            neg(Type.INT_TYPE);
            break;
        case Opcodes.LNEG:
            neg(Type.LONG_TYPE);
            break;
        case Opcodes.FNEG:
            neg(Type.FLOAT_TYPE);
            break;
        case Opcodes.DNEG:
            neg(Type.DOUBLE_TYPE);
            break;
        case Opcodes.ISHL:
            shl(Type.INT_TYPE);
            break;
        case Opcodes.LSHL:
            shl(Type.LONG_TYPE);
            break;
        case Opcodes.ISHR:
            shr(Type.INT_TYPE);
            break;
        case Opcodes.LSHR:
            shr(Type.LONG_TYPE);
            break;
        case Opcodes.IUSHR:
            ushr(Type.INT_TYPE);
            break;
        case Opcodes.LUSHR:
            ushr(Type.LONG_TYPE);
            break;
        case Opcodes.IAND:
            and(Type.INT_TYPE);
            break;
        case Opcodes.LAND:
            and(Type.LONG_TYPE);
            break;
        case Opcodes.IOR:
            or(Type.INT_TYPE);
            break;
        case Opcodes.LOR:
            or(Type.LONG_TYPE);
            break;
        case Opcodes.IXOR:
            xor(Type.INT_TYPE);
            break;
        case Opcodes.LXOR:
            xor(Type.LONG_TYPE);
            break;
        case Opcodes.I2L:
            cast(Type.INT_TYPE, Type.LONG_TYPE);
            break;
        case Opcodes.I2F:
            cast(Type.INT_TYPE, Type.FLOAT_TYPE);
            break;
        case Opcodes.I2D:
            cast(Type.INT_TYPE, Type.DOUBLE_TYPE);
            break;
        case Opcodes.L2I:
            cast(Type.LONG_TYPE, Type.INT_TYPE);
            break;
        case Opcodes.L2F:
            cast(Type.LONG_TYPE, Type.FLOAT_TYPE);
            break;
        case Opcodes.L2D:
            cast(Type.LONG_TYPE, Type.DOUBLE_TYPE);
            break;
        case Opcodes.F2I:
            cast(Type.FLOAT_TYPE, Type.INT_TYPE);
            break;
        case Opcodes.F2L:
            cast(Type.FLOAT_TYPE, Type.LONG_TYPE);
            break;
        case Opcodes.F2D:
            cast(Type.FLOAT_TYPE, Type.DOUBLE_TYPE);
            break;
        case Opcodes.D2I:
            cast(Type.DOUBLE_TYPE, Type.INT_TYPE);
            break;
        case Opcodes.D2L:
            cast(Type.DOUBLE_TYPE, Type.LONG_TYPE);
            break;
        case Opcodes.D2F:
            cast(Type.DOUBLE_TYPE, Type.FLOAT_TYPE);
            break;
        case Opcodes.I2B:
            cast(Type.INT_TYPE, Type.BYTE_TYPE);
            break;
        case Opcodes.I2C:
            cast(Type.INT_TYPE, Type.CHAR_TYPE);
            break;
        case Opcodes.I2S:
            cast(Type.INT_TYPE, Type.SHORT_TYPE);
            break;
        case Opcodes.LCMP:
            lcmp();
            break;
        case Opcodes.FCMPL:
            cmpl(Type.FLOAT_TYPE);
            break;
        case Opcodes.FCMPG:
            cmpg(Type.FLOAT_TYPE);
            break;
        case Opcodes.DCMPL:
            cmpl(Type.DOUBLE_TYPE);
            break;
        case Opcodes.DCMPG:
            cmpg(Type.DOUBLE_TYPE);
            break;
        case Opcodes.IRETURN:
            areturn(Type.INT_TYPE);
            break;
        case Opcodes.LRETURN:
            areturn(Type.LONG_TYPE);
            break;
        case Opcodes.FRETURN:
            areturn(Type.FLOAT_TYPE);
            break;
        case Opcodes.DRETURN:
            areturn(Type.DOUBLE_TYPE);
            break;
        case Opcodes.ARETURN:
            areturn(OBJECT_TYPE);
            break;
        case Opcodes.RETURN:
            areturn(Type.VOID_TYPE);
            break;
        case Opcodes.ARRAYLENGTH:
            arraylength();
            break;
        case Opcodes.ATHROW:
            athrow();
            break;
        case Opcodes.MONITORENTER:
            monitorenter();
            break;
        case Opcodes.MONITOREXIT:
            monitorexit();
            break;
        default:
            throw new IllegalArgumentException();
        }
    }

    @Override
    public void visitIntInsn(final int opcode, final int operand) {
        switch (opcode) {
        case Opcodes.BIPUSH:
            iconst(operand);
            break;
        case Opcodes.SIPUSH:
            iconst(operand);
            break;
        case Opcodes.NEWARRAY:
            switch (operand) {
            case Opcodes.T_BOOLEAN:
                newarray(Type.BOOLEAN_TYPE);
                break;
            case Opcodes.T_CHAR:
                newarray(Type.CHAR_TYPE);
                break;
            case Opcodes.T_BYTE:
                newarray(Type.BYTE_TYPE);
                break;
            case Opcodes.T_SHORT:
                newarray(Type.SHORT_TYPE);
                break;
            case Opcodes.T_INT:
                newarray(Type.INT_TYPE);
                break;
            case Opcodes.T_FLOAT:
                newarray(Type.FLOAT_TYPE);
                break;
            case Opcodes.T_LONG:
                newarray(Type.LONG_TYPE);
                break;
            case Opcodes.T_DOUBLE:
                newarray(Type.DOUBLE_TYPE);
                break;
            default:
                throw new IllegalArgumentException();
            }
            break;
        default:
            throw new IllegalArgumentException();
        }
    }

    @Override
    public void visitVarInsn(final int opcode, final int var) {
        switch (opcode) {
        case Opcodes.ILOAD:
            load(var, Type.INT_TYPE);
            break;
        case Opcodes.LLOAD:
            load(var, Type.LONG_TYPE);
            break;
        case Opcodes.FLOAD:
            load(var, Type.FLOAT_TYPE);
            break;
        case Opcodes.DLOAD:
            load(var, Type.DOUBLE_TYPE);
            break;
        case Opcodes.ALOAD:
            load(var, OBJECT_TYPE);
            break;
        case Opcodes.ISTORE:
            store(var, Type.INT_TYPE);
            break;
        case Opcodes.LSTORE:
            store(var, Type.LONG_TYPE);
            break;
        case Opcodes.FSTORE:
            store(var, Type.FLOAT_TYPE);
            break;
        case Opcodes.DSTORE:
            store(var, Type.DOUBLE_TYPE);
            break;
        case Opcodes.ASTORE:
            store(var, OBJECT_TYPE);
            break;
        case Opcodes.RET:
            ret(var);
            break;
        default:
            throw new IllegalArgumentException();
        }
    }

    @Override
    public void visitTypeInsn(final int opcode, final String type) {
        Type t = Type.getObjectType(type);
        switch (opcode) {
        case Opcodes.NEW:
            anew(t);
            break;
        case Opcodes.ANEWARRAY:
            newarray(t);
            break;
        case Opcodes.CHECKCAST:
            checkcast(t);
            break;
        case Opcodes.INSTANCEOF:
            instanceOf(t);
            break;
        default:
            throw new IllegalArgumentException();
        }
    }

    @Override
    public void visitFieldInsn(final int opcode, final String owner,
            final String name, final String desc) {
        switch (opcode) {
        case Opcodes.GETSTATIC:
            getstatic(owner, name, desc);
            break;
        case Opcodes.PUTSTATIC:
            putstatic(owner, name, desc);
            break;
        case Opcodes.GETFIELD:
            getfield(owner, name, desc);
            break;
        case Opcodes.PUTFIELD:
            putfield(owner, name, desc);
            break;
        default:
            throw new IllegalArgumentException();
        }
    }

    @Override
    public void visitMethodInsn(final int opcode, final String owner,
            final String name, final String desc) {
        switch (opcode) {
        case Opcodes.INVOKESPECIAL:
            invokespecial(owner, name, desc);
            break;
        case Opcodes.INVOKEVIRTUAL:
            invokevirtual(owner, name, desc);
            break;
        case Opcodes.INVOKESTATIC:
            invokestatic(owner, name, desc);
            break;
        case Opcodes.INVOKEINTERFACE:
            invokeinterface(owner, name, desc);
            break;
        default:
            throw new IllegalArgumentException();
        }
    }

    @Override
    public void visitInvokeDynamicInsn(String name, String desc, Handle bsm,
            Object... bsmArgs) {
        invokedynamic(name, desc, bsm, bsmArgs);
    }

    @Override
    public void visitJumpInsn(final int opcode, final Label label) {
        switch (opcode) {
        case Opcodes.IFEQ:
            ifeq(label);
            break;
        case Opcodes.IFNE:
            ifne(label);
            break;
        case Opcodes.IFLT:
            iflt(label);
            break;
        case Opcodes.IFGE:
            ifge(label);
            break;
        case Opcodes.IFGT:
            ifgt(label);
            break;
        case Opcodes.IFLE:
            ifle(label);
            break;
        case Opcodes.IF_ICMPEQ:
            ificmpeq(label);
            break;
        case Opcodes.IF_ICMPNE:
            ificmpne(label);
            break;
        case Opcodes.IF_ICMPLT:
            ificmplt(label);
            break;
        case Opcodes.IF_ICMPGE:
            ificmpge(label);
            break;
        case Opcodes.IF_ICMPGT:
            ificmpgt(label);
            break;
        case Opcodes.IF_ICMPLE:
            ificmple(label);
            break;
        case Opcodes.IF_ACMPEQ:
            ifacmpeq(label);
            break;
        case Opcodes.IF_ACMPNE:
            ifacmpne(label);
            break;
        case Opcodes.GOTO:
            goTo(label);
            break;
        case Opcodes.JSR:
            jsr(label);
            break;
        case Opcodes.IFNULL:
            ifnull(label);
            break;
        case Opcodes.IFNONNULL:
            ifnonnull(label);
            break;
        default:
            throw new IllegalArgumentException();
        }
    }

    @Override
    public void visitLabel(final Label label) {
        mark(label);
    }

    @Override
    public void visitLdcInsn(final Object cst) {
        if (cst instanceof Integer) {
            int val = ((Integer) cst).intValue();
            iconst(val);
        } else if (cst instanceof Byte) {
            int val = ((Byte) cst).intValue();
            iconst(val);
        } else if (cst instanceof Character) {
            int val = ((Character) cst).charValue();
            iconst(val);
        } else if (cst instanceof Short) {
            int val = ((Short) cst).intValue();
            iconst(val);
        } else if (cst instanceof Boolean) {
            int val = ((Boolean) cst).booleanValue() ? 1 : 0;
            iconst(val);
        } else if (cst instanceof Float) {
            float val = ((Float) cst).floatValue();
            fconst(val);
        } else if (cst instanceof Long) {
            long val = ((Long) cst).longValue();
            lconst(val);
        } else if (cst instanceof Double) {
            double val = ((Double) cst).doubleValue();
            dconst(val);
        } else if (cst instanceof String) {
            aconst(cst);
        } else if (cst instanceof Type) {
            tconst((Type) cst);
        } else if (cst instanceof Handle) {
            hconst((Handle) cst);
        } else {
            throw new IllegalArgumentException();
        }
    }

    @Override
    public void visitIincInsn(final int var, final int increment) {
        iinc(var, increment);
    }

    @Override
    public void visitTableSwitchInsn(final int min, final int max,
            final Label dflt, final Label... labels) {
        tableswitch(min, max, dflt, labels);
    }

    @Override
    public void visitLookupSwitchInsn(final Label dflt, final int[] keys,
            final Label[] labels) {
        lookupswitch(dflt, keys, labels);
    }

    @Override
    public void visitMultiANewArrayInsn(final String desc, final int dims) {
        multianewarray(desc, dims);
    }

    // -----------------------------------------------------------------------

    public void nop() {
        mv.visitInsn(Opcodes.NOP);
    }

    public void aconst(final Object cst) {
        if (cst == null) {
            mv.visitInsn(Opcodes.ACONST_NULL);
        } else {
            mv.visitLdcInsn(cst);
        }
    }

    public void iconst(final int cst) {
        if (cst >= -1 && cst <= 5) {
            mv.visitInsn(Opcodes.ICONST_0 + cst);
        } else if (cst >= Byte.MIN_VALUE && cst <= Byte.MAX_VALUE) {
            mv.visitIntInsn(Opcodes.BIPUSH, cst);
        } else if (cst >= Short.MIN_VALUE && cst <= Short.MAX_VALUE) {
            mv.visitIntInsn(Opcodes.SIPUSH, cst);
        } else {
            mv.visitLdcInsn(new Integer(cst));
        }
    }

    public void lconst(final long cst) {
        if (cst == 0L || cst == 1L) {
            mv.visitInsn(Opcodes.LCONST_0 + (int) cst);
        } else {
            mv.visitLdcInsn(new Long(cst));
        }
    }

    public void fconst(final float cst) {
        int bits = Float.floatToIntBits(cst);
        if (bits == 0L || bits == 0x3f800000 || bits == 0x40000000) { // 0..2
            mv.visitInsn(Opcodes.FCONST_0 + (int) cst);
        } else {
            mv.visitLdcInsn(new Float(cst));
        }
    }

    public void dconst(final double cst) {
        long bits = Double.doubleToLongBits(cst);
        if (bits == 0L || bits == 0x3ff0000000000000L) { // +0.0d and 1.0d
            mv.visitInsn(Opcodes.DCONST_0 + (int) cst);
        } else {
            mv.visitLdcInsn(new Double(cst));
        }
    }

    public void tconst(final Type type) {
        mv.visitLdcInsn(type);
    }

    public void hconst(final Handle handle) {
        mv.visitLdcInsn(handle);
    }

    public void load(final int var, final Type type) {
        mv.visitVarInsn(type.getOpcode(Opcodes.ILOAD), var);
    }

    public void aload(final Type type) {
        mv.visitInsn(type.getOpcode(Opcodes.IALOAD));
    }

    public void store(final int var, final Type type) {
        mv.visitVarInsn(type.getOpcode(Opcodes.ISTORE), var);
    }

    public void astore(final Type type) {
        mv.visitInsn(type.getOpcode(Opcodes.IASTORE));
    }

    public void pop() {
        mv.visitInsn(Opcodes.POP);
    }

    public void pop2() {
        mv.visitInsn(Opcodes.POP2);
    }

    public void dup() {
        mv.visitInsn(Opcodes.DUP);
    }

    public void dup2() {
        mv.visitInsn(Opcodes.DUP2);
    }

    public void dupX1() {
        mv.visitInsn(Opcodes.DUP_X1);
    }

    public void dupX2() {
        mv.visitInsn(Opcodes.DUP_X2);
    }

    public void dup2X1() {
        mv.visitInsn(Opcodes.DUP2_X1);
    }

    public void dup2X2() {
        mv.visitInsn(Opcodes.DUP2_X2);
    }

    public void swap() {
        mv.visitInsn(Opcodes.SWAP);
    }

    public void add(final Type type) {
        mv.visitInsn(type.getOpcode(Opcodes.IADD));
    }

    public void sub(final Type type) {
        mv.visitInsn(type.getOpcode(Opcodes.ISUB));
    }

    public void mul(final Type type) {
        mv.visitInsn(type.getOpcode(Opcodes.IMUL));
    }

    public void div(final Type type) {
        mv.visitInsn(type.getOpcode(Opcodes.IDIV));
    }

    public void rem(final Type type) {
        mv.visitInsn(type.getOpcode(Opcodes.IREM));
    }

    public void neg(final Type type) {
        mv.visitInsn(type.getOpcode(Opcodes.INEG));
    }

    public void shl(final Type type) {
        mv.visitInsn(type.getOpcode(Opcodes.ISHL));
    }

    public void shr(final Type type) {
        mv.visitInsn(type.getOpcode(Opcodes.ISHR));
    }

    public void ushr(final Type type) {
        mv.visitInsn(type.getOpcode(Opcodes.IUSHR));
    }

    public void and(final Type type) {
        mv.visitInsn(type.getOpcode(Opcodes.IAND));
    }

    public void or(final Type type) {
        mv.visitInsn(type.getOpcode(Opcodes.IOR));
    }

    public void xor(final Type type) {
        mv.visitInsn(type.getOpcode(Opcodes.IXOR));
    }

    public void iinc(final int var, final int increment) {
        mv.visitIincInsn(var, increment);
    }

    public void cast(final Type from, final Type to) {
        if (from != to) {
            if (from == Type.DOUBLE_TYPE) {
                if (to == Type.FLOAT_TYPE) {
                    mv.visitInsn(Opcodes.D2F);
                } else if (to == Type.LONG_TYPE) {
                    mv.visitInsn(Opcodes.D2L);
                } else {
                    mv.visitInsn(Opcodes.D2I);
                    cast(Type.INT_TYPE, to);
                }
            } else if (from == Type.FLOAT_TYPE) {
                if (to == Type.DOUBLE_TYPE) {
                    mv.visitInsn(Opcodes.F2D);
                } else if (to == Type.LONG_TYPE) {
                    mv.visitInsn(Opcodes.F2L);
                } else {
                    mv.visitInsn(Opcodes.F2I);
                    cast(Type.INT_TYPE, to);
                }
            } else if (from == Type.LONG_TYPE) {
                if (to == Type.DOUBLE_TYPE) {
                    mv.visitInsn(Opcodes.L2D);
                } else if (to == Type.FLOAT_TYPE) {
                    mv.visitInsn(Opcodes.L2F);
                } else {
                    mv.visitInsn(Opcodes.L2I);
                    cast(Type.INT_TYPE, to);
                }
            } else {
                if (to == Type.BYTE_TYPE) {
                    mv.visitInsn(Opcodes.I2B);
                } else if (to == Type.CHAR_TYPE) {
                    mv.visitInsn(Opcodes.I2C);
                } else if (to == Type.DOUBLE_TYPE) {
                    mv.visitInsn(Opcodes.I2D);
                } else if (to == Type.FLOAT_TYPE) {
                    mv.visitInsn(Opcodes.I2F);
                } else if (to == Type.LONG_TYPE) {
                    mv.visitInsn(Opcodes.I2L);
                } else if (to == Type.SHORT_TYPE) {
                    mv.visitInsn(Opcodes.I2S);
                }
            }
        }
    }

    public void lcmp() {
        mv.visitInsn(Opcodes.LCMP);
    }

    public void cmpl(final Type type) {
        mv.visitInsn(type == Type.FLOAT_TYPE ? Opcodes.FCMPL : Opcodes.DCMPL);
    }

    public void cmpg(final Type type) {
        mv.visitInsn(type == Type.FLOAT_TYPE ? Opcodes.FCMPG : Opcodes.DCMPG);
    }

    public void ifeq(final Label label) {
        mv.visitJumpInsn(Opcodes.IFEQ, label);
    }

    public void ifne(final Label label) {
        mv.visitJumpInsn(Opcodes.IFNE, label);
    }

    public void iflt(final Label label) {
        mv.visitJumpInsn(Opcodes.IFLT, label);
    }

    public void ifge(final Label label) {
        mv.visitJumpInsn(Opcodes.IFGE, label);
    }

    public void ifgt(final Label label) {
        mv.visitJumpInsn(Opcodes.IFGT, label);
    }

    public void ifle(final Label label) {
        mv.visitJumpInsn(Opcodes.IFLE, label);
    }

    public void ificmpeq(final Label label) {
        mv.visitJumpInsn(Opcodes.IF_ICMPEQ, label);
    }

    public void ificmpne(final Label label) {
        mv.visitJumpInsn(Opcodes.IF_ICMPNE, label);
    }

    public void ificmplt(final Label label) {
        mv.visitJumpInsn(Opcodes.IF_ICMPLT, label);
    }

    public void ificmpge(final Label label) {
        mv.visitJumpInsn(Opcodes.IF_ICMPGE, label);
    }

    public void ificmpgt(final Label label) {
        mv.visitJumpInsn(Opcodes.IF_ICMPGT, label);
    }

    public void ificmple(final Label label) {
        mv.visitJumpInsn(Opcodes.IF_ICMPLE, label);
    }

    public void ifacmpeq(final Label label) {
        mv.visitJumpInsn(Opcodes.IF_ACMPEQ, label);
    }

    public void ifacmpne(final Label label) {
        mv.visitJumpInsn(Opcodes.IF_ACMPNE, label);
    }

    public void goTo(final Label label) {
        mv.visitJumpInsn(Opcodes.GOTO, label);
    }

    public void jsr(final Label label) {
        mv.visitJumpInsn(Opcodes.JSR, label);
    }

    public void ret(final int var) {
        mv.visitVarInsn(Opcodes.RET, var);
    }

    public void tableswitch(final int min, final int max, final Label dflt,
            final Label... labels) {
        mv.visitTableSwitchInsn(min, max, dflt, labels);
    }

    public void lookupswitch(final Label dflt, final int[] keys,
            final Label[] labels) {
        mv.visitLookupSwitchInsn(dflt, keys, labels);
    }

    public void areturn(final Type t) {
        mv.visitInsn(t.getOpcode(Opcodes.IRETURN));
    }

    public void getstatic(final String owner, final String name,
            final String desc) {
        mv.visitFieldInsn(Opcodes.GETSTATIC, owner, name, desc);
    }

    public void putstatic(final String owner, final String name,
            final String desc) {
        mv.visitFieldInsn(Opcodes.PUTSTATIC, owner, name, desc);
    }

    public void getfield(final String owner, final String name,
            final String desc) {
        mv.visitFieldInsn(Opcodes.GETFIELD, owner, name, desc);
    }

    public void putfield(final String owner, final String name,
            final String desc) {
        mv.visitFieldInsn(Opcodes.PUTFIELD, owner, name, desc);
    }

    public void invokevirtual(final String owner, final String name,
            final String desc) {
        mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, owner, name, desc);
    }

    public void invokespecial(final String owner, final String name,
            final String desc) {
        mv.visitMethodInsn(Opcodes.INVOKESPECIAL, owner, name, desc);
    }

    public void invokestatic(final String owner, final String name,
            final String desc) {
        mv.visitMethodInsn(Opcodes.INVOKESTATIC, owner, name, desc);
    }

    public void invokeinterface(final String owner, final String name,
            final String desc) {
        mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, owner, name, desc);
    }

    public void invokedynamic(String name, String desc, Handle bsm,
            Object[] bsmArgs) {
        mv.visitInvokeDynamicInsn(name, desc, bsm, bsmArgs);
    }

    public void anew(final Type type) {
        mv.visitTypeInsn(Opcodes.NEW, type.getInternalName());
    }

    public void newarray(final Type type) {
        int typ;
        switch (type.getSort()) {
        case Type.BOOLEAN:
            typ = Opcodes.T_BOOLEAN;
            break;
        case Type.CHAR:
            typ = Opcodes.T_CHAR;
            break;
        case Type.BYTE:
            typ = Opcodes.T_BYTE;
            break;
        case Type.SHORT:
            typ = Opcodes.T_SHORT;
            break;
        case Type.INT:
            typ = Opcodes.T_INT;
            break;
        case Type.FLOAT:
            typ = Opcodes.T_FLOAT;
            break;
        case Type.LONG:
            typ = Opcodes.T_LONG;
            break;
        case Type.DOUBLE:
            typ = Opcodes.T_DOUBLE;
            break;
        default:
            mv.visitTypeInsn(Opcodes.ANEWARRAY, type.getInternalName());
            return;
        }
        mv.visitIntInsn(Opcodes.NEWARRAY, typ);
    }

    public void arraylength() {
        mv.visitInsn(Opcodes.ARRAYLENGTH);
    }

    public void athrow() {
        mv.visitInsn(Opcodes.ATHROW);
    }

    public void checkcast(final Type type) {
        mv.visitTypeInsn(Opcodes.CHECKCAST, type.getInternalName());
    }

    public void instanceOf(final Type type) {
        mv.visitTypeInsn(Opcodes.INSTANCEOF, type.getInternalName());
    }

    public void monitorenter() {
        mv.visitInsn(Opcodes.MONITORENTER);
    }

    public void monitorexit() {
        mv.visitInsn(Opcodes.MONITOREXIT);
    }

    public void multianewarray(final String desc, final int dims) {
        mv.visitMultiANewArrayInsn(desc, dims);
    }

    public void ifnull(final Label label) {
        mv.visitJumpInsn(Opcodes.IFNULL, label);
    }

    public void ifnonnull(final Label label) {
        mv.visitJumpInsn(Opcodes.IFNONNULL, label);
    }

    public void mark(final Label label) {
        mv.visitLabel(label);
    }
}