Examples of org.objectweb.asm.MethodVisitor.visitJumpInsn()

org.objectweb.asm.MethodVisitor.visitJumpInsn()
Visits a jump instruction. A jump instruction is an instruction that may jump to another instruction. @param opcode the opcode of the type instruction to be visited. Thisopcode is either IFEQ, IFNE, IFLT, IFGE, IFGT, IFLE, IF_ICMPEQ, IF_ICMPNE, IF_ICMPLT, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ACMPEQ, IF_ACMPNE, GOTO, JSR, IFNULL or IFNONNULL. @param label the operand of the instruction to be visited. This operandis a label that designates the instruction to which the jump instruction may jump.

            mv = cw.visitMethod(ACC_PUBLIC, "execute", "(Ljava/lang/Object;[Ljava/lang/Object;)V", null, new String[] { "org/jboss/byteman/rule/exception/ExecuteException" });
            mv.visitCode();
            // if (Transformer.isVerbose())
            mv.visitMethodInsn(INVOKESTATIC, "org/jboss/byteman/agent/Transformer", "isVerbose", "()Z");
            Label l0 = new Label();
            mv.visitJumpInsn(IFEQ, l0);
            // then
            // System.out.println(rule.getName() + " execute");
            mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
            mv.visitTypeInsn(NEW, "java/lang/StringBuilder");
            mv.visitInsn(DUP);

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        Label done = new Label();
        Label loop = new Label();
        mv.visitLabel(loop);
        mv.visitVarInsn(ALOAD, arity + 2);
        if (EProc.TAIL_MARKER == null) {
            mv.visitJumpInsn(IFNONNULL, done);
        } else {
            mv.visitFieldInsn(GETSTATIC, EPROC_TYPE.getInternalName(),
                    "TAIL_MARKER", EOBJECT_TYPE.getDescriptor());
            mv.visitJumpInsn(IF_ACMPNE, done);
        }

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        if (EProc.TAIL_MARKER == null) {
            mv.visitJumpInsn(IFNONNULL, done);
        } else {
            mv.visitFieldInsn(GETSTATIC, EPROC_TYPE.getInternalName(),
                    "TAIL_MARKER", EOBJECT_TYPE.getDescriptor());
            mv.visitJumpInsn(IF_ACMPNE, done);
        }


        // load proc
        mv.visitVarInsn(ALOAD, 1);
        mv.visitFieldInsn(GETFIELD, EPROC_TYPE.getInternalName(), "tail",

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        mv.visitMethodInsn(INVOKEVIRTUAL, EFUN_TYPE.getInternalName(), "go",
                GO_DESC);
        mv.visitVarInsn(ASTORE, arity + 2);


        mv.visitJumpInsn(GOTO, loop);


        mv.visitLabel(done);
        mv.visitVarInsn(ALOAD, arity + 2);
        mv.visitInsn(ARETURN);
        mv.visitMaxs(arity + 2, arity + 2);

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        l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLineNumber(39, l1);
        mv.visitVarInsn(Opcodes.ALOAD, 4);
        l2 = new Label();
        mv.visitJumpInsn(Opcodes.IFNULL, l2);
        l3 = new Label();
        mv.visitLabel(l3);
        mv.visitLineNumber(40, l3);
        mv.visitVarInsn(Opcodes.ALOAD, 4);
        mv.visitInsn(Opcodes.ARETURN);

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        l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLineNumber(39, l1);
        mv.visitVarInsn(Opcodes.ALOAD, 4);
        l2 = new Label();
        mv.visitJumpInsn(Opcodes.IFNULL, l2);
        l3 = new Label();
        mv.visitLabel(l3);
        mv.visitLineNumber(40, l3);
        mv.visitVarInsn(Opcodes.ALOAD, 4);
        mv.visitInsn(Opcodes.ARETURN);

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        mv.visitLineNumber(54, l0);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitFieldInsn(Opcodes.GETFIELD, "org/apache/cxf/binding/corba/utils/FixedAnyImpl",
                          "obj", "Lorg/omg/CORBA/portable/Streamable;");
        Label l1 = new Label();
        mv.visitJumpInsn(Opcodes.IFNULL, l1);
        Label l2 = new Label();
        mv.visitLabel(l2);
        mv.visitLineNumber(55, l2);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitFieldInsn(Opcodes.GETFIELD, "org/apache/cxf/binding/corba/utils/FixedAnyImpl",

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                          "obj", "Lorg/omg/CORBA/portable/Streamable;");
        mv.visitVarInsn(Opcodes.ALOAD, 1);
        mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "org/omg/CORBA/portable/Streamable", 
                           "_read", "(Lorg/omg/CORBA/portable/InputStream;)V");
        Label l3 = new Label();
        mv.visitJumpInsn(Opcodes.GOTO, l3);
        mv.visitLabel(l1);
        mv.visitLineNumber(57, l1);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitVarInsn(Opcodes.ALOAD, 1);
        mv.visitVarInsn(Opcodes.ALOAD, 2);

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        mv.visitLineNumber(61, l0);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitFieldInsn(Opcodes.GETFIELD, "org/apache/cxf/binding/corba/utils/FixedAnyImpl",
                          "obj", "Lorg/omg/CORBA/portable/Streamable;");
        Label l1 = new Label();
        mv.visitJumpInsn(Opcodes.IFNULL, l1);
        Label l2 = new Label();
        mv.visitLabel(l2);
        mv.visitLineNumber(62, l2);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitFieldInsn(Opcodes.GETFIELD, "org/apache/cxf/binding/corba/utils/FixedAnyImpl",

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                          "obj", "Lorg/omg/CORBA/portable/Streamable;");
        mv.visitVarInsn(Opcodes.ALOAD, 1);
        mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "org/omg/CORBA/portable/Streamable",
                           "_write", "(Lorg/omg/CORBA/portable/OutputStream;)V");
        Label l3 = new Label();
        mv.visitJumpInsn(Opcodes.GOTO, l3);
        mv.visitLabel(l1);
        mv.visitLineNumber(64, l1);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitVarInsn(Opcodes.ALOAD, 1);
        mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "com/sun/corba/se/impl/corba/AnyImpl",

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