Example usage for org.objectweb.asm MethodVisitor visitMaxs

List of usage examples for org.objectweb.asm MethodVisitor visitMaxs

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Introduction

In this page you can find the example usage for org.objectweb.asm MethodVisitor visitMaxs.

Prototype

public void visitMaxs(final int maxStack, final int maxLocals)

Source Link

Document

Visits the maximum stack size and the maximum number of local variables of the method.

Usage

From source file:com.sun.fortress.runtimeSystem.InstantiatingClassloader.java

License:Open Source License

/**
 * @param rttiClassName//  w w w  . j av a  2  s. c o  m
 * @param sparams_size
 */
static public void emitDictionaryAndFactoryForGenericRTTIclass(ManglingClassWriter cw, String rttiClassName,
        int sparams_size, final Naming.XlationData xldata) {

    // Push nulls for opr parameters in the factory call.
    List<Boolean> spks;
    int type_sparams_size = sparams_size;
    if (xldata != null) {
        spks = xldata.isOprKind();
        sparams_size = spks.size();
    } else {
        spks = new InfiniteList<Boolean>(false);
    }

    // FIELD
    // static, initialized to Map-like thing
    cw.visitField(ACC_PRIVATE + ACC_STATIC + ACC_FINAL, "DICTIONARY", Naming.RTTI_MAP_DESC, null, null);

    // CLINIT
    // factory, consulting map, optionally invoking constructor.
    MethodVisitor mv = cw.visitNoMangleMethod(ACC_STATIC, "<clinit>", "()V", null, null);
    mv.visitCode();
    // new
    mv.visitTypeInsn(NEW, Naming.RTTI_MAP_TYPE);
    // init
    mv.visitInsn(DUP);
    mv.visitMethodInsn(INVOKESPECIAL, Naming.RTTI_MAP_TYPE, "<init>", "()V");
    // store
    mv.visitFieldInsn(PUTSTATIC, rttiClassName, "DICTIONARY", Naming.RTTI_MAP_DESC);

    mv.visitInsn(RETURN);
    mv.visitMaxs(Naming.ignoredMaxsParameter, Naming.ignoredMaxsParameter);
    mv.visitEnd();

    // FACTORY

    boolean useSparamsArray = sparams_size > 6;
    int sparamsArrayIndex = sparams_size;

    String fact_sig = Naming.rttiFactorySig(type_sparams_size);
    String init_sig = InstantiatingClassloader.jvmSignatureForOnePlusNTypes("java/lang/Class",
            type_sparams_size, Naming.RTTI_CONTAINER_TYPE, "V");
    String get_sig;
    String put_sig;
    String getClass_sig;
    if (useSparamsArray) {
        get_sig = Naming.makeMethodDesc(Naming.RTTI_CONTAINER_ARRAY_DESC, Naming.RTTI_CONTAINER_DESC);
        put_sig = Naming.makeMethodDesc(Naming.RTTI_CONTAINER_ARRAY_DESC + Naming.RTTI_CONTAINER_DESC,
                Naming.RTTI_CONTAINER_DESC);
        getClass_sig = Naming.makeMethodDesc(NamingCzar.descString + Naming.RTTI_CONTAINER_ARRAY_DESC,
                NamingCzar.descClass);
    } else {
        get_sig = InstantiatingClassloader.jvmSignatureForNTypes(sparams_size, Naming.RTTI_CONTAINER_TYPE,
                Naming.RTTI_CONTAINER_DESC);
        put_sig = InstantiatingClassloader.jvmSignatureForNTypes(sparams_size + 1, Naming.RTTI_CONTAINER_TYPE,
                Naming.RTTI_CONTAINER_DESC);
        getClass_sig = InstantiatingClassloader.jvmSignatureForOnePlusNTypes(NamingCzar.internalString,
                sparams_size, Naming.RTTI_CONTAINER_TYPE, NamingCzar.descClass);
    }

    mv = cw.visitNoMangleMethod(ACC_PUBLIC + ACC_STATIC, Naming.RTTI_FACTORY, fact_sig, null, null);
    mv.visitCode();
    /* 
     * First arg is java class, necessary for creation of type.
     * 
     * rCN x = DICTIONARY.get(args)
     * if  x == null then
     *   x = new rCN(args)
     *   x = DICTIONARY.put(args, x)
     * end
     * return x
     */

    // object
    mv.visitFieldInsn(GETSTATIC, rttiClassName, "DICTIONARY", Naming.RTTI_MAP_DESC);
    // push args
    int l = sparams_size;
    if (useSparamsArray) {
        mv.visitLdcInsn(sparams_size);
        mv.visitTypeInsn(Opcodes.ANEWARRAY, Naming.RTTI_CONTAINER_TYPE);
        mv.visitVarInsn(Opcodes.ASTORE, sparamsArrayIndex);
        InstantiatingClassloader.pushArgsIntoArray(mv, 0, l, sparamsArrayIndex, spks);
    } else {
        InstantiatingClassloader.pushArgs(mv, 0, l, spks);
    }
    // invoke Dictionary.get
    mv.visitMethodInsn(INVOKEVIRTUAL, Naming.RTTI_MAP_TYPE, "get", get_sig);
    Label not_null = new Label();
    mv.visitInsn(DUP);
    mv.visitJumpInsn(IFNONNULL, not_null);
    mv.visitInsn(POP); // discard dup'd null
    // doing it all on the stack -- (unless too many static params, then use an array for human coded stuff)
    // 1) first push the dictionary and args (array if used) 
    // 2) create new RTTI object
    // 3) push args again (array if used) and create the class for this object
    // 4) push the args again (never array) to init RTTI object
    // 5) add to dictionary

    //1)
    mv.visitFieldInsn(GETSTATIC, rttiClassName, "DICTIONARY", Naming.RTTI_MAP_DESC);

    if (useSparamsArray) {
        mv.visitVarInsn(ALOAD, sparamsArrayIndex);
    } else {
        InstantiatingClassloader.pushArgs(mv, 0, l, spks);
    }

    // 2) invoke constructor
    mv.visitTypeInsn(NEW, rttiClassName);
    mv.visitInsn(DUP);

    // 3) create class for this object
    String stem = Naming.rttiClassToBaseClass(rttiClassName);
    if (true || xldata == null) {
        // NOT symbolic (and a problem if we pretend that it is)
        mv.visitLdcInsn(stem);
    } else {
        RTHelpers.symbolicLdc(mv, stem);
    }
    if (useSparamsArray) {
        mv.visitVarInsn(ALOAD, sparamsArrayIndex);
    } else {
        InstantiatingClassloader.pushArgs(mv, 0, l, spks);
    }

    //(mv, "before getRTTIclass");
    mv.visitMethodInsn(Opcodes.INVOKESTATIC, Naming.RT_HELPERS, "getRTTIclass", getClass_sig);
    //eep(mv, "after getRTTIclass");

    // 4) init RTTI object (do not use array)
    // NOTE only pushing type_sparams here.
    InstantiatingClassloader.pushArgs(mv, 0, type_sparams_size);
    mv.visitMethodInsn(INVOKESPECIAL, rttiClassName, "<init>", init_sig);
    // 5) add to dictionary
    mv.visitMethodInsn(INVOKEVIRTUAL, Naming.RTTI_MAP_TYPE, "putIfNew", put_sig);

    mv.visitLabel(not_null);
    mv.visitInsn(ARETURN);

    mv.visitMaxs(Naming.ignoredMaxsParameter, Naming.ignoredMaxsParameter);
    mv.visitEnd();
}

From source file:com.taobao.asm.AsmExample.java

License:Apache License

public static void main(String[] args) throws IOException, IllegalArgumentException, SecurityException,
        IllegalAccessException, InvocationTargetException {

    ClassReader cr = new ClassReader(Foo.class.getName());
    ClassWriter cw = new ClassWriter(cr, ClassWriter.COMPUTE_MAXS);
    ClassVisitor cv = new MethodChangeClassAdapter(cw);
    cr.accept(cv, Opcodes.ASM4);//from w  w w.jav  a 2  s.  co  m

    //  
    MethodVisitor mw = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "add", "([Ljava/lang/String;)V", null, null);
    // pushes the 'out' field (of type PrintStream) of the System class  
    mw.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
    // pushes the "Hello World!" String constant  
    mw.visitLdcInsn("this is add method print!");
    // invokes the 'println' method (defined in the PrintStream class)  
    mw.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/String;)V");
    mw.visitInsn(RETURN);
    // this code uses a maximum of two stack elements and two local  
    // variables  
    mw.visitMaxs(0, 0);
    mw.visitEnd();

    // gets the bytecode of the Example class, and loads it dynamically  
    byte[] code = cw.toByteArray();

    AsmExample loader = new AsmExample();
    Class<?> exampleClass = loader.defineClass(Foo.class.getName(), code, 0, code.length);

    for (Method method : exampleClass.getMethods()) {
        System.out.println(method);
    }

    System.out.println("*************");

    // uses the dynamically generated class to print 'Helloworld'  
    exampleClass.getMethods()[0].invoke(null); //changeMethodContent

    System.out.println("*************");

    exampleClass.getMethods()[1].invoke(null); //execute,??

    // gets the bytecode of the Example class, and loads it dynamically  

    FileOutputStream fos = new FileOutputStream("e:\\logs\\Example.class");
    fos.write(code);
    fos.close();
}

From source file:com.taobao.asm.AsmTest.java

License:Apache License

@Test
public void test() throws Throwable {

    ClassReader cr = new ClassReader(Config.class.getName());
    ClassWriter cw = new ClassWriter(cr, ClassWriter.COMPUTE_MAXS);
    ClassVisitor cv = new MethodChangeClassAdapter(cw);
    cr.accept(cv, Opcodes.ASM5);//from w ww .  j a v  a2s.  c o  m

    //
    MethodVisitor mw = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "add", "([Ljava/lang/String;)V", null, null);

    // pushes the 'out' field (of type PrintStream) of the System class
    mw.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
    // pushes the "Hello World!" String constant
    mw.visitLdcInsn("this is add method print!");
    // invokes the 'println' method (defined in the PrintStream class)
    mw.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/String;)V");
    mw.visitInsn(RETURN);
    // this code uses a maximum of two stack elements and two local
    // variables
    mw.visitMaxs(0, 0);
    mw.visitEnd();

    //Type.getDescriptor(AdviceFlowOuterHolder.class)
    FieldVisitor fv = cw.visitField(ACC_PUBLIC + ACC_STATIC + ACC_FINAL, "age", Type.INT_TYPE.toString(), null,
            1);
    fv.visitEnd();

    FieldVisitor fv2 = cw.visitField(ACC_PUBLIC + ACC_STATIC + ACC_FINAL, "name2",
            Type.getDescriptor(String.class), null, "name2");
    fv2.visitEnd();

    ModifyClassVisiter cv2 = new ModifyClassVisiter(Opcodes.ASM5);
    cv2.addRemoveField("name");
    cr.accept(cv2, Opcodes.ASM5);

    FieldVisitor fv3 = cw.visitField(ACC_PUBLIC + ACC_STATIC + ACC_FINAL, "name",
            Type.getDescriptor(String.class), null, "name");
    fv3.visitEnd();

    byte[] code = cw.toByteArray();
    File file = new File("Config.class");
    System.out.println(file.getAbsolutePath());
    FileOutputStream fos = new FileOutputStream(file);
    fos.write(code);
    fos.close();

}

From source file:com.tencent.tinker.build.auxiliaryclass.AuxiliaryClassGenerator.java

License:Open Source License

private static void generateClass(String dotClassName, File fileOut) throws IOException {
    final String classDesc = dotClassName.replace('.', '/');
    ClassWriter cw = new ClassWriter(0);
    cw.visit(Opcodes.V1_7, Opcodes.ACC_PUBLIC | Opcodes.ACC_SUPER, classDesc, null, "java/lang/Object", null);
    cw.visitSource(fileOut.getName(), null);
    {/*from   w w  w . j  a v a 2 s .co m*/
        MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
        mv.visitInsn(Opcodes.RETURN);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    cw.visitEnd();
    byte[] classBytes = cw.toByteArray();

    OutputStream os = null;
    try {
        os = new BufferedOutputStream(new FileOutputStream(fileOut));
        os.write(classBytes);
    } finally {
        if (os != null) {
            try {
                os.close();
            } catch (Exception e) {
                // Ignored.
            }
        }
    }
}

From source file:com.tencent.tinker.build.auxiliaryclass.AuxiliaryClassInjectAdapter.java

License:Open Source License

@Override
public void visitEnd() {
    // If method <clinit> and <init> are not found, we should generate a <clinit>.
    if (!this.isClInitExists && !this.isInitExists) {
        MethodVisitor mv = super.visitMethod(Opcodes.ACC_STATIC, "<clinit>", "()V", null, null);
        mv.visitCode();/*from w w  w . j  av a 2s .c  o  m*/
        mv.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/System", "lineSeparator", "()Ljava/lang/String;",
                false);
        Label lblSkipInvalidInsn = new Label();
        mv.visitJumpInsn(Opcodes.IFNONNULL, lblSkipInvalidInsn);
        mv.visitLdcInsn(Type.getType(this.auxiliaryClassDesc));
        mv.visitVarInsn(Opcodes.ASTORE, 0);
        mv.visitLabel(lblSkipInvalidInsn);
        mv.visitInsn(Opcodes.RETURN);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    super.visitEnd();
}

From source file:com.toolazydogs.aunit.internal.LexerFactory.java

License:Apache License

private Class<L> loadClass() {
    final String parent = lexerClass.getName().replace('.', '/');
    final String name = "com/toolazydogs/aunit/asm/" + parent;

    ClassWriter cw = new ClassWriter(0);
    FieldVisitor fv;//from w  ww.j a va2 s .c o  m
    MethodVisitor mv;

    cw.visit(V1_5, ACC_PUBLIC + ACC_SUPER, name, null, parent,
            new String[] { "com/toolazydogs/aunit/internal/LexerWrapper" });

    {
        fv = cw.visitField(ACC_PRIVATE + ACC_FINAL, "errors", "Ljava/util/List;",
                "Ljava/util/List<Ljava/lang/String;>;", null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(ACC_PRIVATE, "failOnError", "Z", null, null);
        fv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, parent, "<init>", "()V");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitTypeInsn(NEW, "java/util/ArrayList");
        mv.visitInsn(DUP);
        mv.visitMethodInsn(INVOKESPECIAL, "java/util/ArrayList", "<init>", "()V");
        mv.visitFieldInsn(PUTFIELD, name, "errors", "Ljava/util/List;");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitInsn(ICONST_1);
        mv.visitFieldInsn(PUTFIELD, name, "failOnError", "Z");
        mv.visitInsn(RETURN);
        mv.visitMaxs(3, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "(Lorg/antlr/runtime/CharStream;)V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKESPECIAL, parent, "<init>", "(Lorg/antlr/runtime/CharStream;)V");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitTypeInsn(NEW, "java/util/ArrayList");
        mv.visitInsn(DUP);
        mv.visitMethodInsn(INVOKESPECIAL, "java/util/ArrayList", "<init>", "()V");
        mv.visitFieldInsn(PUTFIELD, name, "errors", "Ljava/util/List;");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitInsn(ICONST_1);
        mv.visitFieldInsn(PUTFIELD, name, "failOnError", "Z");
        mv.visitInsn(RETURN);
        mv.visitMaxs(3, 2);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>",
                "(Lorg/antlr/runtime/CharStream;Lorg/antlr/runtime/RecognizerSharedState;)V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitVarInsn(ALOAD, 2);
        mv.visitMethodInsn(INVOKESPECIAL, parent, "<init>",
                "(Lorg/antlr/runtime/CharStream;Lorg/antlr/runtime/RecognizerSharedState;)V");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitTypeInsn(NEW, "java/util/ArrayList");
        mv.visitInsn(DUP);
        mv.visitMethodInsn(INVOKESPECIAL, "java/util/ArrayList", "<init>", "()V");
        mv.visitFieldInsn(PUTFIELD, name, "errors", "Ljava/util/List;");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitInsn(ICONST_1);
        mv.visitFieldInsn(PUTFIELD, name, "failOnError", "Z");
        mv.visitInsn(RETURN);
        mv.visitMaxs(3, 3);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "emitErrorMessage", "(Ljava/lang/String;)V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, name, "errors", "Ljava/util/List;");
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKEINTERFACE, "java/util/List", "add", "(Ljava/lang/Object;)Z");
        mv.visitInsn(POP);
        mv.visitInsn(RETURN);
        mv.visitMaxs(2, 2);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "getErrors", "()Ljava/util/List;",
                "()Ljava/util/List<Ljava/lang/String;>;", null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, name, "errors", "Ljava/util/List;");
        mv.visitInsn(ARETURN);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "isFailOnError", "()Z", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, name, "failOnError", "Z");
        mv.visitInsn(IRETURN);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "setFailOnError", "(Z)V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ILOAD, 1);
        mv.visitFieldInsn(PUTFIELD, name, "failOnError", "Z");
        mv.visitInsn(RETURN);
        mv.visitMaxs(2, 2);
        mv.visitEnd();
    }
    cw.visitEnd();

    byte[] b = cw.toByteArray();

    AunitClassloader ac = new AunitClassloader(lexerClass.getClassLoader());
    return ac.defineClass(name.replace('/', '.'), b);
}

From source file:com.toolazydogs.aunit.internal.ParserFactory.java

License:Apache License

private Class<P> loadClass() {
    final String parent = parserClass.getName().replace('.', '/');
    final String name = "com/toolazydogs/aunit/asm/" + parent;

    ClassWriter cw = new ClassWriter(0);
    FieldVisitor fv;//from w  ww . ja  va2  s.  com
    MethodVisitor mv;

    cw.visit(V1_5, ACC_PUBLIC + ACC_SUPER, name, null, parent,
            new String[] { "com/toolazydogs/aunit/internal/ParserWrapper" });

    {
        fv = cw.visitField(ACC_PRIVATE + ACC_FINAL, "errors", "Ljava/util/List;",
                "Ljava/util/List<Ljava/lang/String;>;", null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(ACC_PRIVATE, "failOnError", "Z", null, null);
        fv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "(Lorg/antlr/runtime/TokenStream;)V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKESPECIAL, parent, "<init>", "(Lorg/antlr/runtime/TokenStream;)V");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitTypeInsn(NEW, "java/util/ArrayList");
        mv.visitInsn(DUP);
        mv.visitMethodInsn(INVOKESPECIAL, "java/util/ArrayList", "<init>", "()V");
        mv.visitFieldInsn(PUTFIELD, name, "errors", "Ljava/util/List;");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitInsn(ICONST_1);
        mv.visitFieldInsn(PUTFIELD, name, "failOnError", "Z");
        mv.visitInsn(RETURN);
        mv.visitMaxs(3, 2);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>",
                "(Lorg/antlr/runtime/TokenStream;Lorg/antlr/runtime/RecognizerSharedState;)V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitVarInsn(ALOAD, 2);
        mv.visitMethodInsn(INVOKESPECIAL, parent, "<init>",
                "(Lorg/antlr/runtime/TokenStream;Lorg/antlr/runtime/RecognizerSharedState;)V");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitTypeInsn(NEW, "java/util/ArrayList");
        mv.visitInsn(DUP);
        mv.visitMethodInsn(INVOKESPECIAL, "java/util/ArrayList", "<init>", "()V");
        mv.visitFieldInsn(PUTFIELD, name, "errors", "Ljava/util/List;");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitInsn(ICONST_1);
        mv.visitFieldInsn(PUTFIELD, name, "failOnError", "Z");
        mv.visitInsn(RETURN);
        mv.visitMaxs(3, 3);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "emitErrorMessage", "(Ljava/lang/String;)V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, name, "errors", "Ljava/util/List;");
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKEINTERFACE, "java/util/List", "add", "(Ljava/lang/Object;)Z");
        mv.visitInsn(POP);
        mv.visitInsn(RETURN);
        mv.visitMaxs(2, 2);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "getErrors", "()Ljava/util/List;",
                "()Ljava/util/List<Ljava/lang/String;>;", null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, name, "errors", "Ljava/util/List;");
        mv.visitInsn(ARETURN);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "isFailOnError", "()Z", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, name, "failOnError", "Z");
        mv.visitInsn(IRETURN);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "setFailOnError", "(Z)V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ILOAD, 1);
        mv.visitFieldInsn(PUTFIELD, name, "failOnError", "Z");
        mv.visitInsn(RETURN);
        mv.visitMaxs(2, 2);
        mv.visitEnd();
    }
    cw.visitEnd();

    byte[] b = cw.toByteArray();

    AunitClassloader ac = new AunitClassloader(parserClass.getClassLoader());
    return ac.defineClass(name.replace('/', '.'), b);
}

From source file:com.toolazydogs.aunit.internal.TreeParserFactory.java

License:Apache License

private Class<T> loadClass() {
    final String parent = treeParserClass.getName().replace('.', '/');
    final String name = "com/toolazydogs/aunit/asm/" + parent;

    ClassWriter cw = new ClassWriter(0);
    FieldVisitor fv;/*  www.j a  v a  2  s.  c  o  m*/
    MethodVisitor mv;

    cw.visit(V1_5, ACC_PUBLIC + ACC_SUPER, name, null, parent,
            new String[] { "com/toolazydogs/aunit/internal/TreeParserWrapper" });

    {
        fv = cw.visitField(ACC_PRIVATE + ACC_FINAL, "errors", "Ljava/util/List;",
                "Ljava/util/List<Ljava/lang/String;>;", null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(ACC_PRIVATE, "failOnError", "Z", null, null);
        fv.visitEnd();
    }

    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "(Lorg/antlr/runtime/tree/TreeNodeStream;)V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKESPECIAL, parent, "<init>", "(Lorg/antlr/runtime/tree/TreeNodeStream;)V");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitTypeInsn(NEW, "java/util/ArrayList");
        mv.visitInsn(DUP);
        mv.visitMethodInsn(INVOKESPECIAL, "java/util/ArrayList", "<init>", "()V");
        mv.visitFieldInsn(PUTFIELD, name, "errors", "Ljava/util/List;");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitInsn(ICONST_1);
        mv.visitFieldInsn(PUTFIELD, name, "failOnError", "Z");
        mv.visitInsn(RETURN);
        mv.visitMaxs(3, 2);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>",
                "(Lorg/antlr/runtime/tree/TreeNodeStream;Lorg/antlr/runtime/RecognizerSharedState;)V", null,
                null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitVarInsn(ALOAD, 2);
        mv.visitMethodInsn(INVOKESPECIAL, parent, "<init>",
                "(Lorg/antlr/runtime/tree/TreeNodeStream;Lorg/antlr/runtime/RecognizerSharedState;)V");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitTypeInsn(NEW, "java/util/ArrayList");
        mv.visitInsn(DUP);
        mv.visitMethodInsn(INVOKESPECIAL, "java/util/ArrayList", "<init>", "()V");
        mv.visitFieldInsn(PUTFIELD, name, "errors", "Ljava/util/List;");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitInsn(ICONST_1);
        mv.visitFieldInsn(PUTFIELD, name, "failOnError", "Z");
        mv.visitInsn(RETURN);
        mv.visitMaxs(3, 3);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "emitErrorMessage", "(Ljava/lang/String;)V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, name, "errors", "Ljava/util/List;");
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKEINTERFACE, "java/util/List", "add", "(Ljava/lang/Object;)Z");
        mv.visitInsn(POP);
        mv.visitInsn(RETURN);
        mv.visitMaxs(2, 2);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "getErrors", "()Ljava/util/List;",
                "()Ljava/util/List<Ljava/lang/String;>;", null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, name, "errors", "Ljava/util/List;");
        mv.visitInsn(ARETURN);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "isFailOnError", "()Z", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, name, "failOnError", "Z");
        mv.visitInsn(IRETURN);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "setFailOnError", "(Z)V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ILOAD, 1);
        mv.visitFieldInsn(PUTFIELD, name, "failOnError", "Z");
        mv.visitInsn(RETURN);
        mv.visitMaxs(2, 2);
        mv.visitEnd();
    }
    cw.visitEnd();

    byte[] b = cw.toByteArray();

    AunitClassloader ac = new AunitClassloader(treeParserClass.getClassLoader());
    return ac.defineClass(name.replace('/', '.'), b);
}

From source file:com.weibo.lodil.mmap.impl.GenerateHugeArrays.java

License:Apache License

public static byte[] dumpArrayList(final TypeModel tm) {
    final ClassWriter cw = new ClassWriter(0);
    FieldVisitor fv;/*from   w ww .ja v a  2s  . com*/
    MethodVisitor mv;

    final Class interfaceClass = tm.type();
    final String name = interfaceClass.getName().replace('.', '/');

    cw.visit(
            V1_5, ACC_PUBLIC + ACC_SUPER, name + "ArrayList", "L" + collections + "impl/AbstractHugeArrayList<L"
                    + name + ";L" + name + "Allocation;L" + name + "Element;>;",
            collections + "impl/AbstractHugeArrayList", null);

    cw.visitSource(tm.type().getSimpleName() + "ArrayList.java", null);

    for (final FieldModel fm : tm.fields()) {
        if (fm instanceof Enum8FieldModel) {
            fv = cw.visitField(ACC_FINAL, fm.fieldName() + "FieldModel",
                    "L" + collections + "model/Enum8FieldModel;",
                    "L" + collections + "model/Enum8FieldModel<Ljava/lang/annotation/ElementType;>;", null);
            fv.visitEnd();
        } else if (fm instanceof Enumerated16FieldModel) {
            fv = cw.visitField(ACC_FINAL, fm.fieldName() + "FieldModel",
                    "L" + collections + "model/Enumerated16FieldModel;",
                    "L" + collections + "model/Enumerated16FieldModel<Ljava/lang/String;>;", null);
            fv.visitEnd();
        }
    }
    final List<FieldModel> fields = new ArrayList<FieldModel>();
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "(L" + collections + "HugeArrayBuilder;)V", null, null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(35, l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKESPECIAL, collections + "impl/AbstractHugeArrayList", "<init>",
                "(L" + collections + "HugeArrayBuilder;)V");
        final Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLineNumber(29, l1);

        for (final FieldModel fm : tm.fields()) {
            if (fm instanceof Enum8FieldModel) {
                mv.visitVarInsn(ALOAD, 0);
                mv.visitTypeInsn(NEW, fm.bcModelType());
                mv.visitInsn(DUP);
                mv.visitLdcInsn(fm.fieldName());
                mv.visitIntInsn(BIPUSH, fm.fieldNumber());
                mv.visitLdcInsn(Type.getType(fm.bcLFieldType()));
                mv.visitMethodInsn(INVOKESTATIC, fm.bcFieldType(), "values", "()[" + fm.bcLFieldType());
                mv.visitMethodInsn(INVOKESPECIAL, fm.bcModelType(), "<init>",
                        "(Ljava/lang/String;ILjava/lang/Class;[Ljava/lang/Enum;)V");
                mv.visitFieldInsn(PUTFIELD, name + "ArrayList", fm.fieldName() + "FieldModel",
                        fm.bcLModelType());
                mv.visitVarInsn(ALOAD, 0);
                mv.visitFieldInsn(GETFIELD, name + "ArrayList", fm.fieldName() + "FieldModel",
                        fm.bcLModelType());
                mv.visitVarInsn(ALOAD, 1);
                mv.visitMethodInsn(INVOKEVIRTUAL, collections + "HugeArrayBuilder", "baseDirectory",
                        "()Ljava/lang/String;");
                mv.visitMethodInsn(INVOKEVIRTUAL, fm.bcModelType(), "baseDirectory", "(Ljava/lang/String;)V");
                fields.add(fm);

            } else if (fm instanceof Enumerated16FieldModel) {
                mv.visitVarInsn(ALOAD, 0);
                mv.visitTypeInsn(NEW, fm.bcModelType());
                mv.visitInsn(DUP);
                mv.visitLdcInsn(fm.fieldName());
                mv.visitIntInsn(BIPUSH, fm.fieldNumber());
                mv.visitLdcInsn(Type.getType(fm.bcLFieldType()));
                mv.visitMethodInsn(INVOKESPECIAL, fm.bcModelType(), "<init>",
                        "(Ljava/lang/String;ILjava/lang/Class;)V");
                mv.visitFieldInsn(PUTFIELD, name + "ArrayList", fm.fieldName() + "FieldModel",
                        fm.bcLModelType());
                mv.visitVarInsn(ALOAD, 0);
                mv.visitFieldInsn(GETFIELD, name + "ArrayList", fm.fieldName() + "FieldModel",
                        fm.bcLModelType());
                mv.visitVarInsn(ALOAD, 1);
                mv.visitMethodInsn(INVOKEVIRTUAL, collections + "HugeArrayBuilder", "baseDirectory",
                        "()Ljava/lang/String;");
                mv.visitMethodInsn(INVOKEVIRTUAL, fm.bcModelType(), "baseDirectory", "(Ljava/lang/String;)V");
                fields.add(fm);
            }
        }

        mv.visitInsn(RETURN);
        final Label l4 = new Label();
        mv.visitLabel(l4);
        mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l4, 0);
        mv.visitLocalVariable("hab", "L" + collections + "HugeArrayBuilder;", null, l0, l4, 1);
        mv.visitMaxs(7, 2);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PROTECTED, "createAllocation",
                "(L" + collections + "impl/MappedFileChannel;)L" + name + "Allocation;", null, null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(43, l0);
        mv.visitTypeInsn(NEW, name + "Allocation");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, name + "ArrayList", "allocationSize", "I");
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKESPECIAL, name + "Allocation", "<init>",
                "(IL" + collections + "impl/MappedFileChannel;)V");
        mv.visitInsn(ARETURN);
        final Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l1, 0);
        mv.visitLocalVariable("mfc", "L" + collections + "impl/MappedFileChannel;", null, l0, l1, 1);
        mv.visitMaxs(4, 2);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PROTECTED, "createElement", "(J)L" + name + "Element;", null, null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(48, l0);
        mv.visitTypeInsn(NEW, name + "Element");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(LLOAD, 1);
        mv.visitMethodInsn(INVOKESPECIAL, name + "Element", "<init>",
                "(L" + collections + "impl/AbstractHugeArrayList;J)V");
        mv.visitInsn(ARETURN);
        final Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l1, 0);
        mv.visitLocalVariable("n", "J", null, l0, l1, 1);
        mv.visitMaxs(5, 3);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PROTECTED, "createImpl", "()L" + name + ";", null, null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(53, l0);
        mv.visitTypeInsn(NEW, name + "Impl");
        mv.visitInsn(DUP);
        mv.visitMethodInsn(INVOKESPECIAL, name + "Impl", "<init>", "()V");
        mv.visitInsn(ARETURN);
        final Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l1, 0);
        mv.visitMaxs(2, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PROTECTED, "compactStart", "()V", null, null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(57, l0);
        for (final FieldModel fm : fields) {
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, name + "ArrayList", fm.fieldName() + "FieldModel", fm.bcLModelType());
            mv.visitMethodInsn(INVOKEVIRTUAL, fm.bcModelType(), "compactStart", "()V");
        }
        final Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLineNumber(58, l1);
        mv.visitInsn(RETURN);
        final Label l2 = new Label();
        mv.visitLabel(l2);
        mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l2, 0);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PROTECTED, "compactOnAllocation", "(L" + name + "Allocation;J)V", null, null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(65, l0);
        for (final FieldModel fm : fields) {
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, name + "ArrayList", fm.fieldName() + "FieldModel", fm.bcLModelType());
            mv.visitVarInsn(ALOAD, 1);
            mv.visitFieldInsn(GETFIELD, name + "Allocation", "m_string", fm.bcLStoreType());
            mv.visitVarInsn(LLOAD, 2);
            mv.visitMethodInsn(INVOKEVIRTUAL, fm.bcModelType(), "compactScan", "(" + fm.bcLStoreType() + "J)V");
        }
        final Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLineNumber(66, l1);
        mv.visitInsn(RETURN);
        final Label l2 = new Label();
        mv.visitLabel(l2);
        mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l2, 0);
        mv.visitLocalVariable("allocation", "L" + name + "Allocation;", null, l0, l2, 1);
        mv.visitLocalVariable("thisSize", "J", null, l0, l2, 2);
        mv.visitMaxs(4, 4);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PROTECTED, "compactEnd", "()V", null, null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(69, l0);
        for (final FieldModel fm : fields) {
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, name + "ArrayList", fm.fieldName() + "FieldModel", fm.bcLModelType());
            mv.visitMethodInsn(INVOKEVIRTUAL, fm.bcModelType(), "compactEnd", "()V");
        }
        final Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLineNumber(70, l1);
        mv.visitInsn(RETURN);
        final Label l2 = new Label();
        mv.visitLabel(l2);
        mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l2, 0);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "clear", "()V", null, null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(74, l0);
        for (final FieldModel fm : fields) {
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, name + "ArrayList", fm.fieldName() + "FieldModel", fm.bcLModelType());
            mv.visitMethodInsn(INVOKEVIRTUAL, fm.bcModelType(), "clear", "()V");
        }
        final Label l3 = new Label();
        mv.visitLabel(l3);
        mv.visitLineNumber(77, l3);
        mv.visitInsn(RETURN);
        final Label l4 = new Label();
        mv.visitLabel(l4);
        mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l4, 0);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PROTECTED + ACC_BRIDGE + ACC_SYNTHETIC, "createImpl", "()Ljava/lang/Object;",
                null, null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(29, l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKEVIRTUAL, name + "ArrayList", "createImpl", "()L" + name + ";");
        mv.visitInsn(ARETURN);
        final Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l1, 0);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PROTECTED + ACC_BRIDGE + ACC_SYNTHETIC, "createElement",
                "(J)L" + collections + "impl/AbstractHugeElement;", null, null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(29, l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(LLOAD, 1);
        mv.visitMethodInsn(INVOKEVIRTUAL, name + "ArrayList", "createElement", "(J)L" + name + "Element;");
        mv.visitInsn(ARETURN);
        final Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l1, 0);
        mv.visitLocalVariable("x0", "J", null, l0, l1, 1);
        mv.visitMaxs(3, 3);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PROTECTED + ACC_BRIDGE + ACC_SYNTHETIC, "compactOnAllocation",
                "(L" + collections + "api/HugeAllocation;J)V", null, null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(29, l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitTypeInsn(CHECKCAST, name + "Allocation");
        mv.visitVarInsn(LLOAD, 2);
        mv.visitMethodInsn(INVOKEVIRTUAL, name + "ArrayList", "compactOnAllocation",
                "(L" + name + "Allocation;J)V");
        mv.visitInsn(RETURN);
        final Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l1, 0);
        mv.visitLocalVariable("x0", "L" + collections + "api/HugeAllocation;", null, l0, l1, 1);
        mv.visitLocalVariable("x1", "J", null, l0, l1, 2);
        mv.visitMaxs(4, 4);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PROTECTED + ACC_BRIDGE + ACC_SYNTHETIC, "createAllocation",
                "(L" + collections + "impl/MappedFileChannel;)L" + collections + "api/HugeAllocation;", null,
                null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(29, l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKEVIRTUAL, name + "ArrayList", "createAllocation",
                "(L" + collections + "impl/MappedFileChannel;)L" + name + "Allocation;");
        mv.visitInsn(ARETURN);
        final Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLocalVariable("this", "L" + name + "ArrayList;", null, l0, l1, 0);
        mv.visitLocalVariable("x0", "L" + collections + "impl/MappedFileChannel;", null, l0, l1, 1);
        mv.visitMaxs(2, 2);
        mv.visitEnd();
    }
    cw.visitEnd();
    final byte[] bytes = cw.toByteArray();
    // ClassReader cr = new ClassReader(bytes);
    // cr.accept(new ASMifierClassVisitor(new PrintWriter(System.out)), 0);
    return bytes;
}

From source file:com.weibo.lodil.mmap.impl.GenerateHugeArrays.java

License:Apache License

public static byte[] dumpAllocation(final TypeModel tm) {

    final ClassWriter cw = new ClassWriter(0);
    FieldVisitor fv;//from  w  w  w  .  j av a 2s .com
    MethodVisitor mv;

    final Class interfaceClass = tm.type();
    final String name = interfaceClass.getName().replace('.', '/');

    cw.visit(V1_5, ACC_PUBLIC + ACC_SUPER, name + "Allocation", null, "java/lang/Object",
            new String[] { collections + "api/HugeAllocation" });

    cw.visitSource(tm.type().getSimpleName() + "Allocation.java", null);

    for (final FieldModel fm : tm.fields()) {
        fv = cw.visitField(0, "m_" + fm.fieldName(), fm.bcLStoreType(), null, null);
        fv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "(IL" + collections + "impl/MappedFileChannel;)V", null,
                null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(46, l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V");

        for (final FieldModel fm : tm.fields()) {
            mv.visitVarInsn(ALOAD, 0);

            if (fm instanceof ObjectFieldModel) {
                mv.visitLdcInsn(Type.getType(fm.bcLFieldType()));
                mv.visitVarInsn(ILOAD, 1);
                mv.visitMethodInsn(INVOKESTATIC, fm.bcModelType(), "newArrayOfField",
                        "(Ljava/lang/Class;I)[Ljava/lang/Object;");
                mv.visitTypeInsn(CHECKCAST, fm.bcLStoreType());
            } else {
                mv.visitVarInsn(ILOAD, 1);
                mv.visitVarInsn(ALOAD, 2);
                mv.visitMethodInsn(INVOKESTATIC, fm.bcModelType(), "newArrayOfField",
                        "(IL" + collections + "impl/MappedFileChannel;)" + fm.bcLStoreType());
            }
            mv.visitFieldInsn(PUTFIELD, name + "Allocation", "m_" + fm.fieldName(), fm.bcLStoreType());
        }

        mv.visitInsn(RETURN);
        final Label l14 = new Label();
        mv.visitLabel(l14);
        mv.visitLocalVariable("this", "L" + name + "Allocation;", null, l0, l14, 0);
        mv.visitLocalVariable("allocationSize", "I", null, l0, l14, 1);
        mv.visitLocalVariable("mfc", "L" + collections + "impl/MappedFileChannel;", null, l0, l14, 2);
        mv.visitMaxs(3, 3);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "clear", "()V", null, null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(62, l0);
        for (final FieldModel fm : tm.fields()) {
            if (fm instanceof ObjectFieldModel) {
                mv.visitVarInsn(ALOAD, 0);
                mv.visitFieldInsn(GETFIELD, name + "Allocation", "m_" + fm.fieldName(), fm.bcLStoreType());
                mv.visitInsn(ACONST_NULL);
                mv.visitMethodInsn(INVOKESTATIC, "java/util/Arrays", "fill",
                        "([Ljava/lang/Object;Ljava/lang/Object;)V");
            }
        }
        final Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLineNumber(63, l1);
        mv.visitInsn(RETURN);
        final Label l2 = new Label();
        mv.visitLabel(l2);
        mv.visitLocalVariable("this", "L" + name + "Allocation;", null, l0, l2, 0);
        mv.visitMaxs(2, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "destroy", "()V", null, null);
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(66, l0);
        for (final FieldModel fm : tm.fields()) {
            if (!fm.isBufferStore()) {
                continue;
            }
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, name + "Allocation", "m_" + fm.fieldName(), fm.bcLStoreType());
            mv.visitTypeInsn(CHECKCAST, "java/nio/Buffer");
            mv.visitMethodInsn(INVOKESTATIC, GenerateHugeArrays.class.getName().replace('.', '/'), "clean",
                    "(Ljava/nio/Buffer;)V");

        }
        final Label l3 = new Label();
        mv.visitLabel(l3);
        mv.visitLineNumber(69, l3);
        mv.visitInsn(RETURN);
        final Label l4 = new Label();
        mv.visitLabel(l4);
        mv.visitLocalVariable("this", "L" + name + "Allocation;", null, l0, l4, 0);
        mv.visitLocalVariable("m", "Ljava/lang/Object;", null, l3, l4, 1);
        mv.visitMaxs(1, 2);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PROTECTED, "finalize", "()V", null, new String[] { "java/lang/Throwable" });
        mv.visitCode();
        final Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(76, l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "finalize", "()V");
        final Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLineNumber(77, l1);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKEVIRTUAL, name + "Allocation", "destroy", "()V");
        final Label l2 = new Label();
        mv.visitLabel(l2);
        mv.visitLineNumber(78, l2);
        mv.visitInsn(RETURN);
        final Label l3 = new Label();
        mv.visitLabel(l3);
        mv.visitLocalVariable("this", "L" + name + "Allocation;", null, l0, l3, 0);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }

    cw.visitEnd();
    final byte[] bytes = cw.toByteArray();
    // ClassReader cr = new ClassReader(bytes);
    // cr.accept(new ASMifierClassVisitor(new PrintWriter(System.out)), 0);
    return bytes;
}