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.

            MethodVisitor mv = controller.getMethodVisitor();
            OperandStack operandStack = controller.getOperandStack();
            // operands are on the stack already
            int bytecode = stdCompareCodes[type];
            Label l1 = new Label();
            mv.visitJumpInsn(bytecode,l1);
            mv.visitInsn(ICONST_1);
            Label l2 = new Label();;
            mv.visitJumpInsn(GOTO, l2);
            mv.visitLabel(l1);
            mv.visitInsn(ICONST_0);

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            int bytecode = stdCompareCodes[type];
            Label l1 = new Label();
            mv.visitJumpInsn(bytecode,l1);
            mv.visitInsn(ICONST_1);
            Label l2 = new Label();;
            mv.visitJumpInsn(GOTO, l2);
            mv.visitLabel(l1);
            mv.visitInsn(ICONST_0);
            mv.visitLabel(l2);
            operandStack.replace(ClassHelper.boolean_TYPE, 2);
        }

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            MethodVisitor mv = controller.getMethodVisitor();
            // duplicate int arguments
            mv.visitInsn(DUP2);
            
            Label l1 = new Label();
            mv.visitJumpInsn(IF_ICMPGE,l1);
            // no jump, so -1, need to pop off surplus II
            mv.visitInsn(POP2);
            mv.visitInsn(ICONST_M1);
            Label l2 = new Label();;
            mv.visitJumpInsn(GOTO, l2);

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            mv.visitJumpInsn(IF_ICMPGE,l1);
            // no jump, so -1, need to pop off surplus II
            mv.visitInsn(POP2);
            mv.visitInsn(ICONST_M1);
            Label l2 = new Label();;
            mv.visitJumpInsn(GOTO, l2);
            
            mv.visitLabel(l1);
            Label l3 = new Label();
            mv.visitJumpInsn(IF_ICMPNE,l3);
            mv.visitInsn(ICONST_0);

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            Label l2 = new Label();;
            mv.visitJumpInsn(GOTO, l2);
            
            mv.visitLabel(l1);
            Label l3 = new Label();
            mv.visitJumpInsn(IF_ICMPNE,l3);
            mv.visitInsn(ICONST_0);
            mv.visitJumpInsn(GOTO,l2);
            
            mv.visitLabel(l3);
            mv.visitInsn(ICONST_1);

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            mv.visitLabel(l1);
            Label l3 = new Label();
            mv.visitJumpInsn(IF_ICMPNE,l3);
            mv.visitInsn(ICONST_0);
            mv.visitJumpInsn(GOTO,l2);
            
            mv.visitLabel(l3);
            mv.visitInsn(ICONST_1);
            
            controller.getOperandStack().replace(ClassHelper.int_TYPE, 2);

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        MethodVisitor mv = controller.getClassVisitor().visitMethod(visibility, GET_CALLSITE_METHOD, GET_CALLSITE_DESC, null, null);
        controller.setMethodVisitor(mv);
        mv.visitCode();
        mv.visitFieldInsn(GETSTATIC, controller.getInternalClassName(), "$callSiteArray", "Ljava/lang/ref/SoftReference;");
        Label l0 = new Label();
        mv.visitJumpInsn(IFNULL, l0);
        mv.visitFieldInsn(GETSTATIC, controller.getInternalClassName(), "$callSiteArray", "Ljava/lang/ref/SoftReference;");
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/ref/SoftReference", "get", "()Ljava/lang/Object;");
        mv.visitTypeInsn(CHECKCAST, "org/codehaus/groovy/runtime/callsite/CallSiteArray");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ASTORE, 0);

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        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/ref/SoftReference", "get", "()Ljava/lang/Object;");
        mv.visitTypeInsn(CHECKCAST, "org/codehaus/groovy/runtime/callsite/CallSiteArray");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ASTORE, 0);
        Label l1 = new Label();
        mv.visitJumpInsn(IFNONNULL, l1);
        mv.visitLabel(l0);
        mv.visitMethodInsn(INVOKESTATIC, controller.getInternalClassName(), "$createCallSiteArray", "()Lorg/codehaus/groovy/runtime/callsite/CallSiteArray;");
        mv.visitVarInsn(ASTORE, 0);
        mv.visitTypeInsn(NEW, "java/lang/ref/SoftReference");
        mv.visitInsn(DUP);

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            OperandStack operandStack = controller.getOperandStack();
            // operands are on the stack already
            int bytecode = stdCompareCodes[type];
            mv.visitInsn(getCompareCode());
            Label l1 = new Label();
            mv.visitJumpInsn(bytecode,l1);
            mv.visitInsn(ICONST_1);
            Label l2 = new Label();;
            mv.visitJumpInsn(GOTO, l2);
            mv.visitLabel(l1);
            mv.visitInsn(ICONST_0);

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            mv.visitInsn(getCompareCode());
            Label l1 = new Label();
            mv.visitJumpInsn(bytecode,l1);
            mv.visitInsn(ICONST_1);
            Label l2 = new Label();;
            mv.visitJumpInsn(GOTO, l2);
            mv.visitLabel(l1);
            mv.visitInsn(ICONST_0);
            mv.visitLabel(l2);
            operandStack.replace(ClassHelper.boolean_TYPE, 2);
        }

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