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

org.objectweb.asm.MethodVisitor.visitLabel()
Visits a label. A label designates the instruction that will be visited just after it. @param label a {@link Label Label} object.

                Label l2b = new Label();
                mv.visitJumpInsn(GOTO, l2b);


                // Loop
                Label l3b = new Label();
                mv.visitLabel(l3b);
                mv.visitVarInsn(ALOAD, 0);
                mv.visitFieldInsn(GETFIELD, className, delegator.getName(), "[L" + delegator.getSpecification().getName().replace('.', '/') + ";");
                mv.visitVarInsn(ILOAD, index);
                mv.visitInsn(AALOAD);

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                loadArgs(mv, ACC_PUBLIC, Type.getArgumentTypes(desc));


                mv.visitMethodInsn(INVOKEINTERFACE, delegator.getSpecification().getName().replace('.', '/'), name, desc);


                Label l4b = new Label();
                mv.visitLabel(l4b);
                mv.visitIincInsn(index, 1); // i++;


                // Condition
                mv.visitLabel(l2b);
                mv.visitVarInsn(ILOAD, index);

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                Label l4b = new Label();
                mv.visitLabel(l4b);
                mv.visitIincInsn(index, 1); // i++;


                // Condition
                mv.visitLabel(l2b);
                mv.visitVarInsn(ILOAD, index);
                mv.visitVarInsn(ALOAD, 0);
                mv.visitFieldInsn(GETFIELD, className, delegator.getName(), "[L" + delegator.getSpecification().getName().replace('.', '/') + ";");
                mv.visitInsn(ARRAYLENGTH);
                mv.visitJumpInsn(IF_ICMPLT, l3b);

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                mv.visitFieldInsn(GETFIELD, className, delegator.getName(), "[L" + delegator.getSpecification().getName().replace('.', '/') + ";");
                mv.visitInsn(ARRAYLENGTH);
                mv.visitJumpInsn(IF_ICMPLT, l3b);


                Label l5b = new Label();
                mv.visitLabel(l5b);
                mv.visitInsn(RETURN);
            }
        } else {
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, className, delegator.getName(), "L" + delegator.getSpecification().getName().replace('.', '/') + ";");

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                           "(" + propClassSignature + ")V",
                           propTypeSignature == null ? null : "(" + propTypeSignature + ")V",
                           null);
        mv.visitCode();
        Label l0 = new Label();
        mv.visitLabel(l0);
        // mv.visitLineNumber(57, l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(CodeGenerationHelper.getLoadOPCode(propClassSignature), 1);
        mv.visitFieldInsn(PUTFIELD, classDescriptor, getFieldName(propName), propClassSignature);
        Label l1 = new Label();

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        // mv.visitLineNumber(57, l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(CodeGenerationHelper.getLoadOPCode(propClassSignature), 1);
        mv.visitFieldInsn(PUTFIELD, classDescriptor, getFieldName(propName), propClassSignature);
        Label l1 = new Label();
        mv.visitLabel(l1);
        // mv.visitLineNumber(58, l1);
        mv.visitInsn(RETURN);
        Label l2 = new Label();
        mv.visitLabel(l2);
        mv.visitLocalVariable("this", classSignature, null, l0, l2, 0);

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        Label l1 = new Label();
        mv.visitLabel(l1);
        // mv.visitLineNumber(58, l1);
        mv.visitInsn(RETURN);
        Label l2 = new Label();
        mv.visitLabel(l2);
        mv.visitLocalVariable("this", classSignature, null, l0, l2, 0);
        mv.visitLocalVariable(getFieldName(propName), propClassSignature, propTypeSignature, l0, l2, 1);
        mv.visitMaxs(3, 3);
        mv.visitEnd();

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        MethodVisitor mv =
            cw.visitMethod(ACC_PUBLIC, getterName, "()" + propClassSignature, propTypeSignature == null ? null
                : "()" + propTypeSignature, null);
        mv.visitCode();
        Label l0 = new Label();
        mv.visitLabel(l0);
        // mv.visitLineNumber(48, l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, classDescriptor, getFieldName(propName), propClassSignature);
        mv.visitInsn(CodeGenerationHelper.getReturnOPCode(propClassSignature));
        Label l1 = new Label();

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        // mv.visitLineNumber(48, l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, classDescriptor, getFieldName(propName), propClassSignature);
        mv.visitInsn(CodeGenerationHelper.getReturnOPCode(propClassSignature));
        Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLocalVariable("this", classSignature, null, l0, l1, 0);
        mv.visitMaxs(2, 1);
        mv.visitEnd();
    }

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        MethodVisitor mv =
            cw.visitMethod(ACC_PUBLIC, getterName, "()" + propClassSignature, propTypeSignature == null ? null
                : "()" + propTypeSignature, null);
        mv.visitCode();
        Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(63, l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, classDescriptor, fieldName, propClassSignature);
        Label l1 = new Label();
        mv.visitJumpInsn(IFNONNULL, l1);

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