Package org.ow2.asm

Examples of org.ow2.asm.ClassWriter

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                              final String className,
                              final Method getterMethod,
                              final Class< ? > fieldType,
                              final boolean isInterface) throws Exception {

        final ClassWriter cw = new ClassWriter( ClassWriter.COMPUTE_MAXS );

        final Class< ? > superClass = getReaderSuperClassFor( fieldType );
        buildClassHeader( superClass,
                          className,
                          cw );

        //        buildConstructor( superClass,
        //                          className,
        //                          cw );

        build3ArgConstructor( superClass,
                              className,
                              cw );

        buildGetMethod( originalClass,
                        className,
                        superClass,
                        getterMethod,
                        cw );

        cw.visitEnd();

        return cw.toByteArray();
    }
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                              final String className,
                              final Method getterMethod,
                              final Class< ? > fieldType,
                              final boolean isInterface) throws Exception {

        final ClassWriter cw = new ClassWriter( ClassWriter.COMPUTE_MAXS );

        final Class< ? > superClass = getWriterSuperClassFor( fieldType );
        buildClassHeader( superClass,
                          className,
                          cw );

        build3ArgConstructor( superClass,
                              className,
                              cw );

        buildSetMethod( originalClass,
                        className,
                        superClass,
                        getterMethod,
                        fieldType,
                        cw );

        cw.visitEnd();

        return cw.toByteArray();
    }
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            throw new RuntimeException( "FATAL : Trying to create an enum out of a bean class definition  " + classDef );
        }

        EnumClassDefinition edef = (EnumClassDefinition) classDef;

        ClassWriter cw = new ClassWriter( ClassWriter.COMPUTE_MAXS );

        this.buildClassHeader( cw,
                edef );

        this.buildLiterals(cw,
                edef);

        this.buildFields( cw,
                edef );


        this.buildConstructors( cw,
                edef );

        this.buildGettersAndSetters( cw,
                edef );

        this.buildEqualityMethods( cw,
                edef );

        this.buildToString( cw,
                edef );

        cw.visitEnd();

        byte[] serializedClass = cw.toByteArray();

        return serializedClass;
    }
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    public byte[] buildClass( ClassDefinition classDef ) {

        init( classDef );

        ClassWriter cw = new ClassWriter( ClassWriter.COMPUTE_MAXS );


        try {
            String cName = BuildUtils.getInternalType(classDef.getClassName());
            String genericTypes = BuildUtils.getGenericTypes( classDef.getInterfaces() );
            String superType = Type.getInternalName( Object.class );
            String[] intfaces = null;
           
            if ( Object.class.getName().equals( classDef.getSuperClass() ) ) {
                String[] tmp = BuildUtils.getInternalTypes( classDef.getInterfaces() );
                intfaces = new String[ tmp.length + 2 ];
                System.arraycopy( tmp, 0, intfaces, 0, tmp.length );
                intfaces[ tmp.length ] = Type.getInternalName( Serializable.class );
                intfaces[ tmp.length + 1 ] = Type.getInternalName( GeneratedFact.class );
            } else {
                String[] tmp = BuildUtils.getInternalTypes( classDef.getInterfaces() );
                intfaces = new String[ tmp.length + 3 ];
                System.arraycopy( tmp, 0, intfaces, 0, tmp.length );
                intfaces[ tmp.length ] = BuildUtils.getInternalType( classDef.getSuperClass() );
                intfaces[ tmp.length + 1 ] = Type.getInternalName( Serializable.class );
                intfaces[ tmp.length + 2 ] = Type.getInternalName( GeneratedFact.class );
            }

            cw.visit( V1_5, ACC_PUBLIC + ACC_ABSTRACT + ACC_INTERFACE,
                    cName,
                    genericTypes,
                    superType,
                    intfaces );

            {
                if ( classDef.getDefinedClass() == null || classDef.getDefinedClass().getAnnotation( Trait.class ) == null ) {
                    AnnotationVisitor av0 = cw.visitAnnotation( Type.getDescriptor( Trait.class ), true);
                    av0.visitEnd();
                }
            }

            for ( FieldDefinition field : classDef.getFieldsDefinitions() ) {
                buildField( cw, field );
            }

            finalizeCreation( classDef );

            cw.visitEnd();
        } catch ( Exception e ) {
            e.printStackTrace();
        }

        return cw.toByteArray();
    }
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                              final String className,
                              final Method getterMethod,
                              final Class< ? > fieldType,
                              final boolean isInterface) throws Exception {

        final ClassWriter cw = new ClassWriter( ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS );

        final Class< ? > superClass = getReaderSuperClassFor( fieldType );
        buildClassHeader( superClass,
                          className,
                          cw );

        //        buildConstructor( superClass,
        //                          className,
        //                          cw );

        build3ArgConstructor( superClass,
                              className,
                              cw );

        buildGetMethod( originalClass,
                        className,
                        superClass,
                        getterMethod,
                        cw );

        cw.visitEnd();

        return cw.toByteArray();
    }
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                              final String className,
                              final Method getterMethod,
                              final Class< ? > fieldType,
                              final boolean isInterface) throws Exception {

        final ClassWriter cw = new ClassWriter( ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS );

        final Class< ? > superClass = getWriterSuperClassFor( fieldType );
        buildClassHeader( superClass,
                          className,
                          cw );

        build3ArgConstructor( superClass,
                              className,
                              cw );

        buildSetMethod( originalClass,
                        className,
                        superClass,
                        getterMethod,
                        fieldType,
                        cw );

        cw.visitEnd();

        return cw.toByteArray();
    }
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        generate(dir, "pkg/Outer$1.class", dump1());
        generate(dir, "pkg/Outer$Inner.class", dumpInner());
    }

    public byte[] dump() {
        ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
        FieldVisitor fv;
        MethodVisitor mv;

        cw.visit(V1_4,
                ACC_PUBLIC + ACC_SUPER + ACC_DEPRECATED,
                "pkg/Outer",
                null,
                "java/lang/Object",
                null);

        cw.visitInnerClass("pkg/Outer$Inner", "pkg/Outer", "C", 0);
        cw.visitInnerClass("pkg/Outer$1", null, null, 0);

        fv = cw.visitField(ACC_PRIVATE + ACC_DEPRECATED, "i", "I", null, null);
        fv.visitEnd();

        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();

        mv = cw.visitMethod(ACC_DEPRECATED, "m", "()V", null, null);
        mv.visitCode();
        mv.visitTypeInsn(NEW, "pkg/Outer$1");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL,
                "pkg/Outer$1",
                "<init>",
                "(Lpkg/Outer;)V");
        mv.visitInsn(POP);
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();

        mv = cw.visitMethod(ACC_STATIC + ACC_SYNTHETIC,
                "access$000",
                "(Lpkg/Outer;)I",
                null,
                null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, "pkg/Outer", "i", "I");
        mv.visitInsn(IRETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();

        cw.visitEnd();

        return cw.toByteArray();
    }
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        return cw.toByteArray();
    }

    public static byte[] dump1() {
        ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
        FieldVisitor fv;
        MethodVisitor mv;

        cw.visit(V1_4, ACC_SUPER, "pkg/Outer$1", null, "pkg/Outer", null);

        cw.visitOuterClass("pkg/Outer", "m", "()V");
        cw.visitInnerClass("pkg/Outer$1", null, null, 0);

        fv = cw.visitField(ACC_FINAL + ACC_SYNTHETIC,
                "this$0",
                "Lpkg/Outer;",
                null,
                null);
        fv.visitEnd();

        mv = cw.visitMethod(0, "<init>", "(Lpkg/Outer;)V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitFieldInsn(PUTFIELD, "pkg/Outer$1", "this$0", "Lpkg/Outer;");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "pkg/Outer", "<init>", "()V");
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();

        mv = cw.visitMethod(ACC_PUBLIC,
                "toString",
                "()Ljava/lang/String;",
                null,
                null);
        mv.visitCode();
        mv.visitTypeInsn(NEW, "java/lang/StringBuilder");
        mv.visitInsn(DUP);
        mv.visitMethodInsn(INVOKESPECIAL,
                "java/lang/StringBuilder",
                "<init>",
                "()V");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, "pkg/Outer$1", "this$0", "Lpkg/Outer;");
        mv.visitMethodInsn(INVOKEVIRTUAL,
                "java/lang/StringBuilder",
                "append",
                "(Ljava/lang/Object;)Ljava/lang/StringBuilder;");
        mv.visitLdcInsn(" ");
        mv.visitMethodInsn(INVOKEVIRTUAL,
                "java/lang/StringBuilder",
                "append",
                "(Ljava/lang/String;)Ljava/lang/StringBuilder;");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, "pkg/Outer$1", "this$0", "Lpkg/Outer;");
        mv.visitMethodInsn(INVOKESTATIC,
                "pkg/Outer",
                "access$000",
                "(Lpkg/Outer;)I");
        mv.visitMethodInsn(INVOKEVIRTUAL,
                "java/lang/StringBuilder",
                "append",
                "(I)Ljava/lang/StringBuilder;");
        mv.visitMethodInsn(INVOKEVIRTUAL,
                "java/lang/StringBuilder",
                "toString",
                "()Ljava/lang/String;");
        mv.visitInsn(ARETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();

        cw.visitEnd();

        return cw.toByteArray();
    }
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        return cw.toByteArray();
    }

    public static byte[] dumpInner() {
        ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
        FieldVisitor fv;
        MethodVisitor mv;

        cw.visit(V1_4,
                ACC_SUPER,
                "pkg/Outer$Inner",
                null,
                "java/lang/Object",
                null);

        cw.visitInnerClass("pkg/Outer$Inner", "pkg/Outer", "C", 0);

        fv = cw.visitField(ACC_FINAL + ACC_SYNTHETIC,
                "this$0",
                "Lpkg/Outer;",
                null,
                null);
        fv.visitEnd();

        mv = cw.visitMethod(0, "<init>", "(Lpkg/Outer;)V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitFieldInsn(PUTFIELD, "pkg/Outer$Inner", "this$0", "Lpkg/Outer;");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();

        cw.visitEnd();

        return cw.toByteArray();
    }
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        generate(dir, "pkg/JSR1.class", dumpForwardJSR());
        generate(dir, "pkg/JSR2.class", dumpBackwardJSR());
    }

    public byte[] dumpForwardJSR() {
        ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
        MethodVisitor mv;

        cw.visit(V1_1, ACC_PUBLIC, "pkg/JSR1", null, "java/lang/Object", null);

        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();

        mv = cw.visitMethod(ACC_PUBLIC, "forwardJSR", "([I)V", null, null);
        mv.visitCode();
        Label l0 = new Label();
        Label l1 = new Label();
        Label l2 = new Label();
        Label l3 = new Label();
        Label l4 = new Label();
        Label l5 = new Label();
        mv.visitTryCatchBlock(l0, l1, l2, null);
        mv.visitTryCatchBlock(l2, l3, l2, null);
        mv.visitLabel(l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKEVIRTUAL, "pkg/JSR1", "forwardJSR", "([I)V");
        mv.visitJumpInsn(JSR, l4); // forward JSR, will give forward JSR_W

        // many NOPs will be introduced here by the method resizing test

        mv.visitLabel(l1);
        mv.visitJumpInsn(GOTO, l5);
        mv.visitLabel(l2);
        mv.visitVarInsn(ASTORE, 2);
        mv.visitJumpInsn(JSR, l4);
        mv.visitLabel(l3);
        mv.visitVarInsn(ALOAD, 2);
        mv.visitInsn(ATHROW);
        mv.visitLabel(l4);
        mv.visitVarInsn(ASTORE, 3);
        mv.visitInsn(DCONST_0);
        mv.visitVarInsn(DSTORE, 4);
        mv.visitVarInsn(RET, 3);
        mv.visitLabel(l5);
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();

        cw.visitEnd();

        return cw.toByteArray();
    }
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