Ejemplo n.º 1
0
  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();
  }