�����JFIF��XX����������    $.' ",#(7),01444'9=82<.342  2!!22222222222222222222222222222222222222222222222222�����"����4���������������������������� ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������,�PG"Z_�4�˷����kjز�Z�,F+��_z�,�© �����zh6�٨�ic�fu������������������������������������#ډb���_�N��?�����������wQ���5-�~�I���8���������������������������������TK<5o�Iv-������������������k�_U_������������������������������~b�M��d��������Ӝ�U�Hh��?]��E�w��Q���k�{��_}qFW7HTՑ��Y��F�����?_�'ϔ��_�Ջt������������������������=||I �����6�έ"�����D���/[�k�9����Y�8������ds|\���Ҿp6�Ҵ���]��.����6���z<�v��@]�i%������������������������$j��~����g��J>��no����pM[me�i$[�����������s�o�ᘨ�˸ nɜG-�ĨU�ycP���3.DB�li�;���������������������hj���x����7Z^�N�h��������N3u{�:j�����x�힞��#M��&��jL P@��_���� P�������������������&��o8��������9������@Sz���6�t7#O�ߋ �����s}Yf�T������lmr����Z)'N��k�۞p�����w\�T���������������ȯ?�8`���O��i{wﭹW�[�r�� ��Q4F�׊������3m&L�=��h3�������z~��#����\�l :�F,j@�� ʱ�wQT����8�"kJO����6�֚l������������������}����R�>ډK���]��y����&����p�}b������;N�1�m�r$����|��7�>e�@���B�TM*-i�H��g�D�)� E�m�|�ؘbҗ�a���Ҿ����������������t4�����o���G��*oCN�rP���Q��@z,|?W[0���������:�n,j���WiE��W������$~/�hp\��?��{(�0���+�Y8rΟ�+����>S-S���������������VN;���}�s?.����� w��9��˟<���Mq4�Wv'������{)0�1mB����V����W[��������8�/<� �%���wT^�5���b��)iM� p�g�N�&ݝ������������VO~��q���u���9��� ����!��J27�����$����O-���! �:���%H��� ـ�������y�ΠM=t{!S�� �oK8�������t<����è��������:a��������[������ա�H���~��w��Qz`�p����o�^ ������Q��n����� �,uu�C��$ ^���,�������8�#��:�6��e�|~�����������!�3��3.�\0�����q��o�4`.|� ����y�Q�`~;�d�ׯ,��O�Zw�������`73�v�܋�<�����Ȏ�� ـ4k��5�K�a�u�=9Yd��$>x�A�&�� j0� ���vF��� Y���|�y��� ~�6�@c��1vOp��������Ig�����4��l�OD�����L����� R���c���j�_�uX�6��3?nk��Wy�f;^*B� ��@���~a�`��Eu�������+�����6�L��.ü>��}y���}_�O�6�͐�:�Yr���G�X��kG������l^w����������~㒶sy���Iu�!���� W ��X��N�7BV��O��!X�2����wvG�R�f�T#�����t�/?���%8�^�W�aT����G�cL�M���I��(J����1~�8�?aT ���]����AS�E��(��*E}� 2������#I/�׍qz��^t�̔���������b�Yz4x����t�){ OH�����+(E��A&�N�������XT��o��"�XC����'���)}�J�z�p� ����~5�}�^����+�6����w��c��Q�|�Lp�d�H��}�(�.|����k��c4^�����"�����Z?ȕ ��a<�������L�!0�39C� �Eu�����C�F�Ew�ç ;�n?�*o���B�8�bʝ���'#Rqf����M}7����]�������s2tcS{�\icTx;�\��7K���P������ʇ Z O-��~�������c>"��?��������P�����E��O�8��@�8��G��Q�g�a�Վ���󁶠��䧘��_%#r�>�����1�z�a���eb��qcP��ѵ��n���#L��� =��׀t� L�7�`�����V����A{�C:�g���e@�����w1 Xp�3�c3�ġ�������p��M"'-�@n4���fG���B3�DJ�8[Jo�ߐ���gK)ƛ��$���� �������8�3�����+���� �����6�ʻ���� ���S�kI�*KZlT _`�������?��K�����QK�d���������B`�s}�>���`������*�>��,*@J�d�oF*�����弝��O}�k��s��]��y�ߘ�������c1G�V���<=�7��7����6��q�PT��tXԀ�!9*4�4Tހ���3XΛex�46�������Y��D ����� ����BdemDa����\�_l,����G�/���֌7���Y�](�xTt^%�GE�����4�}bT����ڹ�����;��Y)���B�Q��u��>J/J ���⮶.�XԄ��j�ݳ������+E��d ���r�5�_D�����1 ���o�� �B�x�΢�#����<��W�����8���R6�@���g�M�.��� dr�D��>(otU��@�x=��~v���2� ӣ�d�oBd�����3�eO�6�㣷����������ݜ�6��6Y��Qz`����S��{���\P��~z m5{J/L��1������<�e�ͅPu���b�]�ϔ��������'�������f�b� Zpw��c`"��i���BD@:)ִ�:�]��h���v�E��w���T�l�������P����"Ju�}��وV ��J��G6��. J/�Qgl߭�e�����@�z�Zev2u����)]կ���������7x�������s�M�-<ɯ�c��r��v�����@��$�ޮ}lk���a����'����>x��O\�Z������Fu>������ck#��&:��`�$��ai�>2Δ����l���oF[h�������lE�ܺ�Π���k:)���`������� $[6�����9�����kOw�\|�����8}������ބ:��񶐕��������I�A1/���=�2[�,�!��.}gN#�u����b���� ~���������݊��}34q�����d�E��L��������c��$���"�[q�U�硬g^��%B ��z���r�p�������J�ru%v\h�����1Y�ne`������ǥ:g����pQM~�^��Xi� ��`S�:V2������9.�P���V������?B�k�� ��������AEvw%�_�9C�Q����wKekP�ؠ�\������;Io d�{ ߞo�c1eP�����\� `����E=���@K<�Y��������eڼ�J����w����{av�F�'�M�@��������������/J��+9p����|]���������Iw &`���8���&�M�hg���[�{�������Xj���%��Ӓ�������������������$��(�����ʹN�������<>�I���RY�����K2�NPlL�ɀ�)��&e��������B+ь����(������������������� � �JTx����_?EZ� }@���� 6�U���뙢ط�z��dWI��n` D����噥�[��uV��"�G&�����Ú����2�g�}&m���������������������?ċ���"����Om#�������������������������� ��{���������������������ON��"S�X���Ne��ysQ���@�������������Fn��Vg�����dX�~nj����������������������]J�<�K]:����FW���b�������62����������=��5f����JKw����bf�X������������������������55��~J �%^�������:�-�QIE��P��v�nZum� z � ~ə ���� ���ة����;�f��\v�������g�8�1��f2�������������������������4;�V���ǔ�)�������������������9���1\������������������������������c��v�/'Ƞ�w������������������$�4�R-��t����������������������������������� e�6�/�ġ �̕Ecy�J���u�B���<�W�ַ~�w[B1L۲�-JS΂�{���΃�������������������������������������������A��20�c#���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������@���� 0!1@AP"#2Q`$3V�%45a6�FRUq����� ������^7ׅ,$n��������+��F�`��2X'��0vM��p�L=�������5��8������u�p~���.�`r�����\����O��,ư�0oS ��_�M�����l���4�kv\JSd���x���SW�<��Ae�IX����������$I���w�:S���y���›R��9�Q[���,�5�;�@]�%���u�@ *ro�lbI �� ��+���%m:�͇ZV�����u�̉����θau<�fc�.����{�4Ա� �Q����*�Sm��8\ujqs]{kN���)qO�y�_*dJ�b�7���yQqI&9�ԌK!�M}�R�;�������S�T���1���i[U�ɵz�]��U)V�S6���3$K{��ߊ<�(� E]Զ[ǼENg�����'�\?#)Dkf��J���o��v���'�%ƞ�&K�u��!��b�35LX�Ϸ��63$K�a�;�9>,R��W��3�3� d�JeTYE.Mϧ��-�o�j3+y��y^�c�������VO�9NV\nd�1 ��!͕_)a�v;����թ�M�lWR1��)El��P;��yوÏ�u 3�k�5Pr6<�⒲l�!˞*��u־�n�!�l:����UNW ��%��Chx8vL'��X�@��*��)���̮��ˍ��� ����D-M�+J�U�kvK����+�x8��cY������?�Ԡ��~3mo��|�u@[XeY�C�\Kp�x8�oC�C�&����N�~3-H���� ��MX�s�u<`���~"WL��$8ξ��3���a�)|:@�m�\���^�`�@ҷ)�5p+��6���p�%i)P M���ngc�����#0Aruz���RL+xSS?���ʮ}()#�t��mˇ!��0}}y����<�e� �-ή�Ԩ��X������ MF���ԙ~l L.3���}�V뽺�v������멬��Nl�)�2����^�Iq��a��M��qG��T�����c3#������3U�Ǎ���}��לS�|qa��ڃ�+���-��2�f����/��bz��ڐ�� �ݼ[2�ç����k�X�2�* �Z�d���J�G����M*9W���s{��w���T��x��y,�in�O�v��]���n����P�$��JB@=4�OTI�n��e�22a\����q�d���%�$��(���:���: /*�K[PR�fr\nڙdN���F�n�$�4��[�� U�zƶ����� �mʋ���,�ao�u 3�z� �x��Kn����\[��VFmbE;�_U��&V�Gg�]L�۪&#n%�$ɯ��dG���D�TI=�%+AB�Ru#��b4�1�»x�cs�YzڙJG��f��Il���d�eF'T� iA��T���uC�$����Y��H?����[!G`}���ͪ� �纤Hv\������j�Ex�K���!���OiƸ�Yj�+u-<���'q����uN�*�r\��+�]���<�wOZ.fp�ێ��,-*)V?j-kÊ#�`�r��dV����(�ݽBk�����G�ƛk�QmUڗe��Z���f}|����8�8��a���i��3'J�����~G_�^���d�8w������ R�`(�~�.��u���l�s+g�bv���W���lGc}��u���afE~1�Ue������Z�0�8�=e�� f@/�jqEKQQ�J���oN��J���W5~M>$6�Lt�;$ʳ{���^��6�{����v6���ķܰg�V�cnn �~z�x�«�,2�u�?cE+Ș�H؎�%�Za�)���X>uW�Tz�Nyo����s���FQƤ��$��*�&�LLXL)�1�" L��eO��ɟ�9=���:t��Z���c��Ž���Y?�ӭV�wv�~,Y��r�ۗ�|�y��GaF�����C�����.�+� ���v1���fήJ�����]�S��T��B��n5sW}y�$��~z�'�c ��8 ��� ,! �p��VN�S��N�N�q��y8z˱�A��4��*��'������2n<�s���^ǧ˭P�Jޮɏ�U�G�L�J�*#��<�V��t7�8����TĜ>��i}K%,���)[��z�21z ?�N�i�n1?T�I�R#��m-�����������������1����lA�`��fT5+��ܐ�c�q՝��ʐ��,���3�f2U�եmab��#ŠdQ�y>\��)�SLY����w#��.���ʑ�f��� ,"+�w�~�N�'�c�O�3F�������N<���)j��&��,-� �љ���֊�_�zS���TǦ����w�>��?�������n��U仆�V���e�����0���$�C�d���rP �m�׈e�Xm�Vu� �L��.�bֹ��� �[Դaզ���*��\y�8�Է:�Ez\�0�Kq�C b��̘��cө���Q��=0Y��s�N��S.����3.���O�o:���#���v7�[#߫ ��5�܎�L���Er4���9n��COWlG�^��0k�%<���ZB���aB_���������'=��{i�v�l�$�uC���mƎҝ{�c㱼�y]���W�i ��ߧc��m�H� m�"�"�����;Y�ߝ�Z�Ǔ�����:S#��|}�y�,/k�Ld� TA�(�AI$+I3��;Y*���Z��}|��ӧO��d�v��..#:n��f>�>���ȶI�TX��� 8��y����"d�R�|�)0���=���n4��6ⲑ�+��r<�O�܂~zh�z����7ܓ�HH�Ga롏���nCo�>������a ���~]���R���̲c?�6(�q�;5%� |�uj�~z8R�=X��I�V=�|{v�Gj\gc��q����z�؋%M�ߍ����1y��#��@f^���^�>N������#x#۹��6�Y~�?�dfPO��{��P�4��V��u1E1J �*|���%����JN��`eWu�zk M6���q t[�� ��g�G���v��WIG��u_ft����5�j�"�Y�:T��ɐ���*�;� e5���4����q$C��2d�}���� _S�L#m�Yp��O�.�C�;��c����Hi#֩%+) �Ӎ��ƲV���SYź��g |���tj��3�8���r|���V��1#;.SQ�A[���S������#���`n�+���$��$�I �P\[�@�s��(�ED�z���P��])8�G#��0B��[ى��X�II�q<��9�~[Z멜�Z�⊔IWU&A>�P~�#��dp<�?����7���c��'~���5 ��+$���lx@�M�dm��n<=e�dyX��?{�|Aef ,|n3�<~z�ƃ�uۧ�����P��Y,�ӥQ�*g�#먙R�\���;T��i,��[9Qi歉����c>]9�� ��"�c��P�� �Md?٥��If�ت�u��k��/����F��9�c*9��Ǎ:�ØF���z�n*�@|I�ށ9����N3{'��[�'ͬ�Ҳ4��#}��!�V� Fu��,�,mTIk���v C�7v���B�6k�T9��1�*l� '~��ƞF��lU��'�M ����][ΩũJ_�{�i�I�n��$����L�� j��O�dx�����kza۪��#�E��Cl����x˘�o�����V���ɞ�ljr��)�/,�߬h�L��#��^��L�ф�,íMƁe�̩�NB�L�����iL����q�}��(��q��6IçJ$�W�E$��:������=#����(�K�B����zђ <��K(�N�۫K�w��^O{!����)��H���>x�������lx�?>Պ�+�>�W���,Ly!_�D���Ō�l���Q�!�[ �S����J��1��Ɛ�Y}��b,+�Lo�x�ɓ)����=�y�oh�@�꥟/��I��ѭ=��P�y9��� �ۍYӘ�e+�p�Jnϱ?V\SO%�(�t� ���=?MR�[Ș�����d�/ ��n�l��B�7j� ��!�;ӥ�/�[-���A�>��dN�sLj ��,ɪv��=1c�.SQ�O3�U���ƀ�ܽ�E����������̻��9G�ϷD�7(�}��Ävӌ\��y�_0[w ���<΍>����a_��[0+�L��F.�޺��f�>oN�T����q;���y\��bՃ��y�jH�<|q-eɏ�_?_9+P���Hp$�����[ux�K w�Mw��N�ی'$Y2�=��q���KB��P��~�������Yul:�[<����F1�2�O���5=d����]Y�sw:���Ϯ���E��j,_Q��X��z`H1,#II ��d�wr��P˂@�ZJV����y$�\y�{}��^~���[:N����ߌ�U�������O��d�����ؾe��${p>G��3c���Ė�lʌ�� ת��[��`ϱ�-W����dg�I��ig2��� ��}s ��ؤ(%#sS@���~���3�X�nRG�~\jc3�v��ӍL��M[JB�T��s3}��j�Nʖ��W����;7���ç?=X�F=-�=����q�ߚ���#���='�c��7���ڑW�I(O+=:uxq�������������e2�zi+�kuG�R��������0�&e�n���iT^J����~\jy���p'dtG��s����O��3����9* �b#Ɋ�� p������[Bws�T�>d4�ۧs���nv�n���U���_�~,�v����ƜJ1��s�� �QIz���)�(lv8M���U=�;����56��G���s#�K���MP�=��LvyGd��}�VwWBF�'�à �?MH�U�g2�� ����!�p�7Q��j��ڴ����=��j�u��� Jn�A s���uM������e��Ɔ�Ҕ�!)�'��8Ϣ�ٔ���ޝ(��Vp���צ֖d=�IC�J�Ǡ{q������kԭ�߸���i��@K����u�|�p=..�*+����x�����z[Aqġ#s2a�Ɗ���RR�)*HRsi�~�a &f��M��P����-K�L@��Z��Xy�'x�{}��Zm+���:�)�) IJ�-i�u���� ���ܒH��'��L(7�y�GӜq���� j��� 6ߌg1�g�o���,kر���tY�?W,���p���e���f�OQS��!K�۟cҒA�|ս�j�>��=⬒��˧L[�� �߿2JaB~R��u�:��Q�] �0H~���]�7��Ƽ�I���(�}��cq '�ήET���q�?f�ab���ӥvr� �)o��-Q��_'����ᴎo��K������;��V���o��%���~OK ����*��b�f:���-ťIR��`B�5!RB@���ï�� �u �̯e\�_U�_������� g�ES��3��������QT��a�����x����U<~�c?�*�#]�MW,[8O�a�x��]�1bC|踤�P��lw5V%�)�{t�<��d��5���0i�XSU��m:��Z�┵�i�"��1�^B�-��P�hJ��&)O��*�D��c�W��vM��)����}���P��ܗ-q����\mmζZ-l@�}��a��E�6��F�@��&Sg@���ݚ�M����� ȹ 4����#p�\H����dYDo�H���"��\��..R�B�H�z_�/5˘����6��KhJR��P�mƶi�m���3��,#c�co��q�a)*P�t����R�m�k�7x�D�E�\Y�閣_X�<���~�)���c[[�BP����6�Yq���S��0����%_����;��Àv�~�| VS؇ ��'O0��F0��\���U�-�d@�����7�SJ*z��3n��y��P����O����������m�~�P�3|Y��ʉr#�C�<�G~�.,! ���bqx���h~0=��!ǫ�jy����l��O,�[B��~��|9��ٱ����Xly�#�i�B��g%�S��������tˋ���e���ې��\[d�t)��.+u�|1 ������#�~Oj����hS�%��i.�~X���I�H�m��0n���c�1uE�q��cF�RF�o���7� �O�ꮧ� ���ۛ{��ʛi5�rw?׌#Qn�TW��~?y$��m\�\o����%W� ?=>S�N@�� �Ʈ���R����N�)�r"C�:��:����� �����#��qb��Y�. �6[��2K����2u�Ǧ�HYR��Q�MV��� �G�$��Q+.>�����nNH��q�^��� ����q��mM��V��D�+�-�#*�U�̒ ���p욳��u:�������IB���m����PV@O���r[b= �� ��1U�E��_Nm�yKbN�O���U�}�the�`�|6֮P>�\2�P�V���I�D�i�P�O;�9�r�mAHG�W�S]��J*�_�G��+kP�2����Ka�Z���H�'K�x�W�MZ%�O�YD�Rc+o��?�q��Ghm��d�S�oh�\�D�|:W������UA�Qc yT�q��������~^�H��/��#p�CZ���T�I�1�ӏT����4��"�ČZ�����}��`w�#�*,ʹ�� ��0�i��課�Om�*�da��^gJ݅{���l�e9uF#T�ֲ��̲�ٞC"�q���ߍ ոޑ�o#�XZTp����@ o�8��(jd��xw�]�,f���`~��|,s��^����f�1���t��|��m�򸄭/ctr��5s��7�9Q�4�H1꠲BB@�l9@���C�����+�wp�xu�£Yc�9��?`@#�o�mH�s2��)�=��2�.�l����jg�9$�Y�S�%*L������R�Y������7Z���,*=�䷘$�������arm�o�ϰ���UW.|�r�uf����IGw�t����Zwo��~5 ��YյhO+=8fF�)�W�7�L9lM�̘·Y���֘YLf�큹�pRF���99.A �"wz��=E\Z���'a� 2��Ǚ�#;�'}�G���*��l��^"q��+2FQ� hj��kŦ��${���ޮ-�T�٭cf�|�3#~�RJ����t��$b�(R��(����r���dx� >U b�&9,>���%E\� Ά�e�$��'�q't��*�א���ެ�b��-|d���SB�O�O��$�R+�H�)�܎�K��1m`;�J�2�Y~9��O�g8=vqD`K[�F)k�[���1m޼c��n���]s�k�z$@��)!I �x՝"v��9=�ZA=`Ɠi �:�E��)`�7��vI��}d�YI�_ �o�:ob���o ���3Q��&D&�2=�� �Ά��;>�h����y.*ⅥS������Ӭ�+q&����j|UƧ�����}���J0��WW< ۋS�)jQR�j���Ư��rN)�Gű�4Ѷ(�S)Ǣ�8��i��W52���No˓� ۍ%�5brOn�L�;�n��\G����=�^U�dI���8$�&���h��'���+�(������cȁ߫k�l��S^���cƗjԌE�ꭔ��gF���Ȓ��@���}O���*;e�v�WV���YJ\�]X'5��ղ�k�F��b 6R�o՜m��i N�i�����>J����?��lPm�U��}>_Z&�KK��q�r��I�D�Չ~�q�3fL�:S�e>���E���-G���{L�6p�e,8��������QI��h��a�Xa��U�A'���ʂ���s�+טIjP�-��y�8ۈZ?J$��W�P� ��R�s�]��|�l(�ԓ��sƊi��o(��S0���Y� 8�T97.�����WiL��c�~�dxc�E|�2!�X�K�Ƙਫ਼�$((�6�~|d9u+�qd�^3�89��Y�6L�.I�����?���iI�q���9�)O/뚅����O���X��X�V��ZF[�یgQ�L��K1���RҖr@v�#��X�l��F���Нy�S�8�7�kF!A��sM���^rkp�jP�DyS$N���q���nxҍ!U�f�!eh�i�2�m����`�Y�I�9r�6� �TF���C}/�y�^���Η���5d�'��9A-��J��>{�_l+�`��A���[�'��յ�ϛ#w:݅�%��X�}�&�PSt�Q�"�-��\縵�/����$Ɨh�Xb�*�y��BS����;W�ջ_mc�����vt?2}1�;qS�d�d~u:2k5�2�R�~�z+|HE!)�Ǟl��7`��0�<�,�2*���Hl-��x�^����'_TV�gZA�'j� ^�2Ϊ��N7t�����?w�� �x1��f��Iz�C-Ȗ��K�^q�;���-W�DvT�7��8�Z�������� hK�(P:��Q- �8�n�Z���܃e貾�<�1�YT<�,�����"�6{�/ �?�͟��|1�:�#g��W�>$����d��J��d�B���=��jf[��%rE^��il:��B���x���Sּ�1հ��,�=��*�7 fcG��#q� �eh?��2�7�����,�!7x��6�n�LC�4x��},Geǝ�tC.��vS �F�43��zz\��;QYC,6����~;RYS/6���|2���5���v��T��i����������mlv��������&� �nRh^ejR�LG�f���? �ۉҬܦƩ��|��Ȱ����>3����!v��i�ʯ�>�v��オ�X3e���_1z�Kȗ\<������!�8���V��]��?b�k41�Re��T�q��mz��TiOʦ�Z��Xq���L������q"+���2ۨ��8}�&N7XU7Ap�d�X��~�׿��&4e�o�F��� �H�����O���č�c�� 懴�6���͉��+)��v;j��ݷ�� �UV�� i��� j���Y9GdÒJ1��詞�����V?h��l�����l�cGs�ځ�������y�Ac������\V3�? �� ܙg�>qH�S,�E�W�[�㺨�uch�⍸�O�}���a��>�q�6�n6�����N6�q��������N� ���! 1AQaq�0@����"2BRb�#Pr���3C`��Scst���$4D���%Td���� ?�����N����a��3��m���C���w��������xA�m�q�m����m������$����4n淿t'��C"w��zU=D�\R+w�p+Y�T�&�պ@��ƃ��3ޯ?�Aﶂ��aŘ���@-�����Q�=���9D��ռ�ѻ@��M�V��P��܅�G5�f�Y<�u=,EC)�<�Fy'�"�&�չ�X~f��l�KԆV��?�� �W�N����=(� �;���{�r����ٌ�Y���h{�١������jW����P���Tc�����X�K�r��}���w�R��%��?���E��m�� �Y�q|����\lEE4����r���}�lsI�Y������f�$�=�d�yO����p�����yBj8jU�o�/�S��?�U��*������ˍ�0�������u�q�m [�?f����a�� )Q�>����6#������� ?����0UQ����,IX���(6ڵ[�DI�MNލ�c&���υ�j\��X�R|,4��� j������T�hA�e��^���d���b<����n�� �즇�=!���3�^�`j�h�ȓr��jẕ�c�,ٞX����-����a�ﶔ���#�$��]w�O��Ӫ�1y%��L�Y<�wg#�ǝ�̗`�x�xa�t�w��»1���o7o5��>�m뭛C���Uƃߜ}�C���y1Xνm�F8�jI���]����H���ۺиE@I�i;r�8ӭ�����V�F�Շ| ��&?�3|x�B�MuS�Ge�=Ӕ�#BE5G������Y!z��_e��q�р/W>|-�Ci߇�t�1ޯќd�R3�u��g�=0 5��[?�#͏��q�cf���H��{ ?u�=?�?ǯ���}Z��z���hmΔ�BFTW�����<�q��(v� ��!��z���iW]*�J�V�z��gX֧A�q�&��/w���u�gYӘa���; �i=����g:��?2�dž6�ى�k�4�>�Pxs����}������G�9���3 ���)gG�R<>r h�$��'nc�h�P��Bj��J�ҧH� -��N1���N��?��~��}-q!=��_2hc�M��l�vY%UE�@|�v����M2�.Y[|y�"Eï��K�ZF,�ɯ?,q�?v�M 80jx�"�;�9vk�����+ ֧�� �ȺU��?�%�vcV��mA�6��Qg^M�����A}�3�nl� QRN�l8�kkn�'�����(��M�7m9و�q���%ޟ���*h$Zk"��$�9��: �?U8�Sl��,,|ɒ��xH(ѷ����Gn�/Q�4�P��G�%��Ա8�N��!� �&�7�;���eKM7�4��9R/%����l�c>�x;������>��C�:�����t��h?aKX�bhe�ᜋ^�$�Iհ �hr7%F$�E��Fd���t��5���+�(M6�t����Ü�UU|zW�=a�Ts�Tg������dqP�Q����b'�m���1{|Y����X�N��b �P~��F^F:����k6�"�j!�� �I�r�`��1&�-$�Bevk:y���#y�w��I0��x��=D�4��tU���P�ZH��ڠ底taP��6����b>�xa�����Q�#� WeF��ŮNj�p�J* mQ�N�����*I�-*�ȩ�F�g�3 �5��V�ʊ�ɮ�a��5F���O@{���NX��?����H�]3��1�Ri_u��������ѕ�� ����0��� F��~��:60�p�͈�S��qX#a�5>���`�o&+�<2�D����: �������ڝ�$�nP���*)�N�|y�Ej�F�5ټ�e���ihy�Z �>���k�bH�a�v��h�-#���!�Po=@k̆IEN��@��}Ll?j�O������߭�ʞ���Q|A07x���wt!xf���I2?Z��<ץ�T���cU�j��]���陎Ltl �}5�ϓ��$�,��O�mˊ�;�@O��jE��j(�ا,��LX���LO���Ц�90�O �.����a��nA���7������j4 ��W��_ٓ���zW�jcB������y՗+EM�)d���N�g6�y1_x��p�$Lv�:��9�"z��p���ʙ$��^��JԼ*�ϭ����o���=x�Lj�6�J��u82�A�H�3$�ٕ@�=Vv�]�'�qEz�;I˼��)��=��ɯ���x �/�W(V���p�����$ �m�������u�����񶤑Oqˎ�T����r��㠚x�sr�GC��byp�G��1ߠ�w e�8�$⿄����/�M{*}��W�]˷.�CK\�ުx���/$�WP�w���r� |i���&�}�{�X� �>��$-��l���?-z���g����lΆ���(F���h�vS*���b���߲ڡn,|)mrH[���a�3�ר�[1��3o_�U�3�TC�$��(�=�)0�kgP���� ��u�^=��4 �WYCҸ:��vQ�ר�X�à��tk�m,�t*��^�,�}D*�� �"(�I��9R����>`�`��[~Q]�#af��i6l��8���6�:,s�s�N6�j"�A4���IuQ��6E,�GnH��zS�HO�uk�5$�I�4��ؤ�Q9�@��C����wp��BGv[]�u�Ov����0I4���\��y�����Q�Ѹ��~>Z��8�T��a��q�ޣ;z��a���/��S��I:�ܫ_�|������>=Z����8:�S��U�I�J��"IY���8%b8���H��:�QO�6�;7�I�S��J��ҌAά3��>c���E+&jf$eC+�z�;��V����� �r���ʺ������my�e���aQ�f&��6�ND���.:��NT�vm�<- u���ǝ\MvZY�N�NT��-A�>jr!S��n�O 1�3�Ns�%�3D@���`������ܟ 1�^c<���� �a�ɽ�̲�Xë#�w�|y�cW�=�9I*H8�p�^(4���՗�k��arOcW�tO�\�ƍR��8����'�K���I�Q�����?5�>[�}��yU�ײ -h��=��% q�ThG�2�)���"ו3]�!kB��*p�FDl�A���,�eEi�H�f�Ps�����5�H:�Փ~�H�0Dت�D�I����h�F3�������c��2���E��9�H��5�zԑ�ʚ�i�X�=:m�xg�hd(�v����׊�9iS��O��d@0ڽ���:�p�5�h-��t�&���X�q�ӕ,��ie�|���7A�2���O%P��E��htj��Y1��w�Ѓ!����  ���� ࢽ��My�7�\�a�@�ţ�J ��4�Ȼ�F�@o�̒?4�wx��)��]�P��~�����u�����5�����7X ��9��^ܩ�U;Iꭆ 5 �������eK2�7(�{|��Y׎ �V��\"���Z�1� Z�����}��(�Ǝ"�1S���_�vE30>���p;� ΝD��%x�W�?W?v����o�^V�i�d��r[��/&>�~`�9Wh��y�;���R���� ;;ɮT��?����r$�g1�K����A��C��c��K��l:�'��3 c�ﳯ*"t8�~l��)���m��+U,z��`(��>yJ�?����h>��]��v��ЍG*�{`��;y]��I�T� ;c��NU�fo¾h���/$���|NS���1�S�"�H��V���T���4��uhǜ�]�v;���5�͠x��'C\�SBpl���h}�N����� A�Bx���%��ޭ�l��/����T��w�ʽ]D�=����K���ž�r㻠l4�S�O?=�k �M:� ��c�C�a�#ha���)�ѐxc�s���gP�iG���{+���x���Q���I= �� z��ԫ+ �8"�k�ñ�j=|����c ��y��CF��/���*9ж�h{ �?4�o� ��k�m�Q�N�x��;�Y��4膚�a�w?�6�>�e]�����Q�r�:����g�,i"�����ԩA��*M�<�G��b�if��l^M��5�� �Ҩ�{����6J��ZJ�����P�*�����Y���ݛu�_4�9�I8�7���������,^ToR���m4�H��?�N�S�ѕw��/S��甍�@�9H�S�T��t�ƻ���ʒU��*{Xs�@����f������֒Li�K{H�w^���������Ϥm�tq���s� ���ք��f:��o~s��g�r��ט� �S�ѱC�e]�x���a��) ���(b-$(�j>�7q�B?ӕ�F��hV25r[7 Y� }L�R��}����*sg+��x�r�2�U=�*'WS��ZDW]�WǞ�<��叓���{�$�9Ou4��y�90-�1�'*D`�c�^o?(�9��u���ݐ��'PI&� f�Jݮ�������:wS����jfP1F:X �H�9dԯ����˝[�_54 �}*;@�ܨ�� ð�yn�T���?�ןd�#���4rG�ͨ��H�1�|-#���Mr�S3��G�3�����)�.᧏3v�z֑��r����$G"�`j �1t��x0<Ɔ�Wh6�y�6��,œ�Ga��gA����y��b��)���h�D��ß�_�m��ü �gG;��e�v��ݝ�nQ� ��C����-�*��o���y�a��M��I�>�<���]obD��"�:���G�A��-\%LT�8���c�)��+y76���o�Q�#*{�(F�⽕�y����=���rW�\p���۩�c���A���^e6��K������ʐ�cVf5$�'->���ՉN"���F�"�UQ@�f��Gb~��#�&�M=��8�ט�JNu9��D��[̤�s�o�~������� G��9T�tW^g5y$b��Y'��س�Ǵ�=��U-2 #�MC�t(�i� �lj�@Q 5�̣i�*�O����s�x�K�f��}\��M{E�V�{�υ��Ƈ�����);�H����I��fe�Lȣr�2��>��W��I�Ȃ6������i��k�� �5�YOxȺ����>��Y�f5'��|��H+��98pj�n�.O�y�������jY��~��i�w'������l�;�s�2��Y��:'lg�ꥴ)o#'Sa�a�K��Z� �m��}�`169�n���"���x��I ��*+� }F<��cГ���F�P�������ֹ*�PqX�x۩��,� ��N�� �4<-����%����:��7����W���u�`����� $�?�I��&����o��o��`v�>��P��"��l���4��5'�Z�gE���8���?��[�X�7(��.Q�-��*���ތL@̲����v��.5���[��=�t\+�CNܛ��,g�SQnH����}*F�G16���&:�t��4ُ"A��̣��$�b �|����#rs��a�����T�� ]�<�j��B�S�('$�ɻ� �wP;�/�n��?�ݜ��x�F��yUn�~mL*-�������Xf�wd^�a�}��f�,=t�׵i�.2/wpN�Ep8�OР���•��R�FJ� 55TZ��T �ɭ�<��]��/�0�r�@�f��V��V����Nz�G��^���7hZi����k��3�,kN�e|�vg�1{9]_i��X5y7� 8e]�U����'�-2,���e"����]ot�I��Y_��n�(JҼ��1�O ]bXc���Nu�No��pS���Q_���_�?i�~�x h5d'�(qw52] ��'ޤ�q��o1�R!���`ywy�A4u���h<קy���\[~�4�\ X�Wt/� 6�����n�F�a8��f���z �3$�t(���q��q�x��^�XWeN'p<-v�!�{�(>ӽDP7��ո0�y)�e$ٕv�Ih'Q�EA�m*�H��RI��=:��� ���4牢) �%_iN�ݧ�l]� �Nt���G��H�L��� ɱ�g<���1V�,�J~�ٹ�"K��Q�� 9�HS�9�?@��k����r�;we݁�]I�!{ �@�G�[�"��`���J:�n]�{�cA�E����V��ʆ���#��U9�6����j�#Y�m\��q�e4h�B�7��C�������d<�?J����1g:ٳ���=Y���D�p�ц� ׈ǔ��1�]26؜oS�'��9�V�FVu�P�h�9�xc�oq�X��p�o�5��Ա5$�9W�V(�[Ak�aY錎qf;�'�[�|���b�6�Ck��)��#a#a˙��8���=äh�4��2��C��4tm^ �n'c����]GQ$[Wҿ��i���vN�{Fu ��1�gx��1┷���N�m��{j-,��x�� Ūm�ЧS�[�s���Gna���䑴�� x�p 8<������97�Q���ϴ�v�aϚG��Rt�Һ׈�f^\r��WH�JU�7Z���y)�vg=����n��4�_)y��D'y�6�]�c�5̪��\� �PF�k����&�c;��cq�$~T�7j ���nç]�<�g ":�to�t}�159�<�/�8������m�b�K#g'I'.W������6��I/��>v��\�MN��g���m�A�yQL�4u�Lj�j9��#44�t��l^�}L����n��R��!��t��±]��r��h6ٍ>�yҏ�N��fU�� ���� Fm@�8}�/u��jb9������he:A�y�ծw��GpΧh�5����l}�3p468��)U��d��c����;Us/�֔�YX�1�O2��uq�s��`hwg�r~�{ R��mhN��؎*q 42�*th��>�#���E����#��Hv�O����q�}������6�e��\�,Wk�#���X��b>��p}�դ��3���T5��†��6��[��@��P�y*n��|'f�֧>�lư΂�̺����SU�'*�q�p�_S�����M�� '��c�6������m�� ySʨ;M��r���Ƌ�m�Kxo,���Gm�P��A�G�:��i��w�9�}M(�^�V��$ǒ�ѽ�9���|���� �a����J�SQ�a���r�B;����}���ٻ֢�2�%U���c�#�g���N�a�ݕ�'�v�[�OY'��3L�3�;,p�]@�S��{ls��X�'���c�jw��k'a�.��}�}&�� �dP�*�bK=ɍ!����;3n�gΊU�ߴmt�'*{,=SzfD� A��ko~�G�aoq�_mi}#�m�������P�Xhύ�����mxǍ�΂���巿zf��Q���c���|kc�����?���W��Y�$���_Lv����l߶��c���`?����l�j�ݲˏ!V��6����U�Ђ(A���4y)H���p�Z_�x��>���e���R��$�/�`^'3qˏ�-&Q�=?��CFVR �D�fV�9��{�8g�������n�h�(P"��6�[�D���< E�����~0<@�`�G�6����Hг�cc�� �c�K.5��D��d�B���`?�XQ��2��ٿyqo&+�1^� DW�0�ꊩ���G�#��Q�nL3��c���������/��x ��1�1�[y�x�პCW��C�c�UĨ80�m�e�4.{�m��u���I=��f�����0QRls9���f���������9���~f�����Ǩ��a�"@�8���ȁ�Q����#c�ic������G��$���G���r/$W�(��W���V�"��m�7�[m�A�m����bo��D� j����۳� l���^�k�h׽����� ��#� iXn�v��eT�k�a�^Y�4�BN���ĕ���0������� !01@Q"2AaPq3BR�������?�����@4�Q�����T3,���㺠�W�[=JK�Ϟ���2�r^7��vc�:�9 �E�ߴ�w�S#d���Ix��u��:��Hp��9E!�� V 2;73|F��9Y���*ʬ�F��D����u&���y؟��^EA��A��(ɩ���^��GV:ݜDy�`��Jr29ܾ�㝉��[���E;Fzx��YG��U�e�Y�C���� ����v-tx����I�sם�Ę�q��Eb�+P\ :>�i�C'�;�����k|z�رn�y]�#ǿb��Q��������w�����(�r|ӹs��[�D��2v-%��@;�8<a���[\o[ϧw��I!��*0�krs)�[�J9^��ʜ��p1)� "��/_>��o��<1����A�E�y^�C��`�x1'ܣn�p��s`l���fQ��):�l����b>�Me�jH^?�kl3(�z:���1ŠK&?Q�~�{�ٺ�h�y���/�[��V�|6��}�KbX����mn[-��7�5q�94�������dm���c^���h� X��5��<�eޘ>G���-�}�دB�ޟ� ��|�rt�M��V+�]�c?�-#ڛ��^ǂ}���Lkr���O��u�>�-D�ry� D?:ޞ�U��ǜ�7�V��?瓮�"�#���r��չģVR;�n���/_� ؉v�ݶe5d�b9��/O��009�G���5n�W����JpA�*�r9�>�1��.[t���s�F���nQ� V 77R�]�ɫ8����_0<՜�IF�u(v��4��F�k�3��E)��N:��yڮe��P�`�1}�$WS��J�SQ�N�j��ٺ��޵�#l���ј(�5=��5�lǏmoW�v-�1����v,W�mn��߀$x�<����v�j(����c]��@#��1������Ǔ���o'��u+����;G�#�޸��v-lη��/(`i⣍Pm^����ԯ̾9Z��F��������n��1��� ��]�[��)�'�������:�֪�W��FC����� �B9،!?���]��V��A�Վ�M��b�w��G F>_DȬ0¤�#�QR�[V��kz���m�w�"��9ZG�7'[��=�Q����j8R?�zf�\a�=��O�U����*oB�A�|G���2�54 �p��.w7� �� ���&������ξxGHp� B%��$g�����t�Џ򤵍z���HN�u�Я�-�'4��0���;_���3������� !01"@AQa2Pq#3BR�������?����ʩca��en��^��8���<�u#��m*08r��y�N"�<�Ѳ0��@\�p��� �����Kv�D��J8�Fҽ� �f�Y��-m�ybX�NP����}�!*8t(�OqѢ��Q�wW�K��ZD��Δ^e��!� ��B�K��p~�����e*l}z#9ң�k���q#�Ft�o��S�R����-�w�!�S���Ӥß|M�l޶V��!eˈ�8Y���c�ЮM2��tk���� ������J�fS����Ö*i/2�����n]�k�\���|4yX�8��U�P.���Ы[���l��@"�t�<������5�lF���vU�����W��W��;�b�cД^6[#7@vU�xgZv��F�6��Q,K�v��� �+Ъ��n��Ǣ��Ft���8��0��c�@�!�Zq s�v�t�;#](B��-�nῃ~���3g������5�J�%���O������n�kB�ĺ�.r��+���#�N$?�q�/�s�6��p��a����a��J/��M�8��6�ܰ"�*������ɗud"\w���aT(����[��F��U՛����RT�b���n�*��6���O��SJ�.�ij<�v�MT��R\c��5l�sZB>F��<7�;EA��{��E���Ö��1U/�#��d1�a�n.1ě����0�ʾR�h��|�R��Ao�3�m3 ��%�� ���28Q�� ��y��φ���H�To�7�lW>����#i`�q���c����a��� �m,B�-j����݋�'mR1Ήt�>��V��p���s�0IbI�C.���1R�ea�����]H�6�����������4B>��o��](��$B���m�����a�!=���?�B� K�Ǿ+�Ծ"�n���K��*��+��[T#�{�E�J�S����Q�����s�5�:�U�\wĐ�f�3����܆&�)�����I���Ԇw��E T�lrTf6Q|R�h:��[K�� �z��c֧�G�C��%\��_�a��84��HcO�bi��ؖV��7H �)*ģK~Xhչ0��4?�0��� �E<���}3���#���u�?�� ��|g�S�6ꊤ�|�I#Hڛ� �ա��w�X��9��7���Ŀ%�SL��y6č��|�F�a 8���b���$�sק�h���b9RAu7�˨p�Č�_\*w��묦��F ����4D~�f����|(�"m���NK��i�S�>�$d7SlA��/�²����SL��|6N�}���S�˯���g��]6��; �#�.��<���q'Q�1|KQ$�����񛩶"�$r�b:���N8�w@��8$�� �AjfG|~�9F ���Y��ʺ��Bwؒ������M:I岎�G��`s�YV5����6��A �b:�W���G�q%l�����F��H���7�������Fsv7���k�� 403WebShell
403Webshell
Server IP : 91.108.106.110  /  Your IP : 216.73.216.150
Web Server : LiteSpeed
System : Linux in-mum-web1874.main-hosting.eu 5.14.0-570.21.1.el9_6.x86_64 #1 SMP PREEMPT_DYNAMIC Wed Jun 11 07:22:35 EDT 2025 x86_64
User : u862839997 ( 862839997)
PHP Version : 8.2.30
Disable Function : system, exec, shell_exec, passthru, mysql_list_dbs, ini_alter, dl, symlink, link, chgrp, leak, popen, apache_child_terminate, virtual, mb_send_mail
MySQL : OFF  |  cURL : ON  |  WGET : ON  |  Perl : OFF  |  Python : OFF  |  Sudo : OFF  |  Pkexec : OFF
Directory :  /opt/golang/1.22.0/src/encoding/gob/

Upload File :
current_dir [ Writeable ] document_root [ Writeable ]

 

Command :


[ Back ]     

Current File : /opt/golang/1.22.0/src/encoding/gob/type.go
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package gob

import (
	"encoding"
	"errors"
	"fmt"
	"os"
	"reflect"
	"sync"
	"sync/atomic"
	"unicode"
	"unicode/utf8"
)

// userTypeInfo stores the information associated with a type the user has handed
// to the package. It's computed once and stored in a map keyed by reflection
// type.
type userTypeInfo struct {
	user        reflect.Type // the type the user handed us
	base        reflect.Type // the base type after all indirections
	indir       int          // number of indirections to reach the base type
	externalEnc int          // xGob, xBinary, or xText
	externalDec int          // xGob, xBinary, or xText
	encIndir    int8         // number of indirections to reach the receiver type; may be negative
	decIndir    int8         // number of indirections to reach the receiver type; may be negative
}

// externalEncoding bits
const (
	xGob    = 1 + iota // GobEncoder or GobDecoder
	xBinary            // encoding.BinaryMarshaler or encoding.BinaryUnmarshaler
	xText              // encoding.TextMarshaler or encoding.TextUnmarshaler
)

var userTypeCache sync.Map // map[reflect.Type]*userTypeInfo

// validUserType returns, and saves, the information associated with user-provided type rt.
// If the user type is not valid, err will be non-nil. To be used when the error handler
// is not set up.
func validUserType(rt reflect.Type) (*userTypeInfo, error) {
	if ui, ok := userTypeCache.Load(rt); ok {
		return ui.(*userTypeInfo), nil
	}

	// Construct a new userTypeInfo and atomically add it to the userTypeCache.
	// If we lose the race, we'll waste a little CPU and create a little garbage
	// but return the existing value anyway.

	ut := new(userTypeInfo)
	ut.base = rt
	ut.user = rt
	// A type that is just a cycle of pointers (such as type T *T) cannot
	// be represented in gobs, which need some concrete data. We use a
	// cycle detection algorithm from Knuth, Vol 2, Section 3.1, Ex 6,
	// pp 539-540.  As we step through indirections, run another type at
	// half speed. If they meet up, there's a cycle.
	slowpoke := ut.base // walks half as fast as ut.base
	for {
		pt := ut.base
		if pt.Kind() != reflect.Pointer {
			break
		}
		ut.base = pt.Elem()
		if ut.base == slowpoke { // ut.base lapped slowpoke
			// recursive pointer type.
			return nil, errors.New("can't represent recursive pointer type " + ut.base.String())
		}
		if ut.indir%2 == 0 {
			slowpoke = slowpoke.Elem()
		}
		ut.indir++
	}

	if ok, indir := implementsInterface(ut.user, gobEncoderInterfaceType); ok {
		ut.externalEnc, ut.encIndir = xGob, indir
	} else if ok, indir := implementsInterface(ut.user, binaryMarshalerInterfaceType); ok {
		ut.externalEnc, ut.encIndir = xBinary, indir
	}

	// NOTE(rsc): Would like to allow MarshalText here, but results in incompatibility
	// with older encodings for net.IP. See golang.org/issue/6760.
	// } else if ok, indir := implementsInterface(ut.user, textMarshalerInterfaceType); ok {
	// 	ut.externalEnc, ut.encIndir = xText, indir
	// }

	if ok, indir := implementsInterface(ut.user, gobDecoderInterfaceType); ok {
		ut.externalDec, ut.decIndir = xGob, indir
	} else if ok, indir := implementsInterface(ut.user, binaryUnmarshalerInterfaceType); ok {
		ut.externalDec, ut.decIndir = xBinary, indir
	}

	// See note above.
	// } else if ok, indir := implementsInterface(ut.user, textUnmarshalerInterfaceType); ok {
	// 	ut.externalDec, ut.decIndir = xText, indir
	// }

	ui, _ := userTypeCache.LoadOrStore(rt, ut)
	return ui.(*userTypeInfo), nil
}

var (
	gobEncoderInterfaceType        = reflect.TypeFor[GobEncoder]()
	gobDecoderInterfaceType        = reflect.TypeFor[GobDecoder]()
	binaryMarshalerInterfaceType   = reflect.TypeFor[encoding.BinaryMarshaler]()
	binaryUnmarshalerInterfaceType = reflect.TypeFor[encoding.BinaryUnmarshaler]()
	textMarshalerInterfaceType     = reflect.TypeFor[encoding.TextMarshaler]()
	textUnmarshalerInterfaceType   = reflect.TypeFor[encoding.TextUnmarshaler]()

	wireTypeType = reflect.TypeFor[wireType]()
)

// implementsInterface reports whether the type implements the
// gobEncoder/gobDecoder interface.
// It also returns the number of indirections required to get to the
// implementation.
func implementsInterface(typ, gobEncDecType reflect.Type) (success bool, indir int8) {
	if typ == nil {
		return
	}
	rt := typ
	// The type might be a pointer and we need to keep
	// dereferencing to the base type until we find an implementation.
	for {
		if rt.Implements(gobEncDecType) {
			return true, indir
		}
		if p := rt; p.Kind() == reflect.Pointer {
			indir++
			if indir > 100 { // insane number of indirections
				return false, 0
			}
			rt = p.Elem()
			continue
		}
		break
	}
	// No luck yet, but if this is a base type (non-pointer), the pointer might satisfy.
	if typ.Kind() != reflect.Pointer {
		// Not a pointer, but does the pointer work?
		if reflect.PointerTo(typ).Implements(gobEncDecType) {
			return true, -1
		}
	}
	return false, 0
}

// userType returns, and saves, the information associated with user-provided type rt.
// If the user type is not valid, it calls error.
func userType(rt reflect.Type) *userTypeInfo {
	ut, err := validUserType(rt)
	if err != nil {
		error_(err)
	}
	return ut
}

// A typeId represents a gob Type as an integer that can be passed on the wire.
// Internally, typeIds are used as keys to a map to recover the underlying type info.
type typeId int32

var typeLock sync.Mutex // set while building a type
const firstUserId = 64  // lowest id number granted to user

type gobType interface {
	id() typeId
	setId(id typeId)
	name() string
	string() string // not public; only for debugging
	safeString(seen map[typeId]bool) string
}

var (
	types                = make(map[reflect.Type]gobType, 32)
	idToTypeSlice        = make([]gobType, 1, firstUserId)
	builtinIdToTypeSlice [firstUserId]gobType // set in init() after builtins are established
)

func idToType(id typeId) gobType {
	if id < 0 || int(id) >= len(idToTypeSlice) {
		return nil
	}
	return idToTypeSlice[id]
}

func builtinIdToType(id typeId) gobType {
	if id < 0 || int(id) >= len(builtinIdToTypeSlice) {
		return nil
	}
	return builtinIdToTypeSlice[id]
}

func setTypeId(typ gobType) {
	// When building recursive types, someone may get there before us.
	if typ.id() != 0 {
		return
	}
	nextId := typeId(len(idToTypeSlice))
	typ.setId(nextId)
	idToTypeSlice = append(idToTypeSlice, typ)
}

func (t typeId) gobType() gobType {
	if t == 0 {
		return nil
	}
	return idToType(t)
}

// string returns the string representation of the type associated with the typeId.
func (t typeId) string() string {
	if t.gobType() == nil {
		return "<nil>"
	}
	return t.gobType().string()
}

// Name returns the name of the type associated with the typeId.
func (t typeId) name() string {
	if t.gobType() == nil {
		return "<nil>"
	}
	return t.gobType().name()
}

// CommonType holds elements of all types.
// It is a historical artifact, kept for binary compatibility and exported
// only for the benefit of the package's encoding of type descriptors. It is
// not intended for direct use by clients.
type CommonType struct {
	Name string
	Id   typeId
}

func (t *CommonType) id() typeId { return t.Id }

func (t *CommonType) setId(id typeId) { t.Id = id }

func (t *CommonType) string() string { return t.Name }

func (t *CommonType) safeString(seen map[typeId]bool) string {
	return t.Name
}

func (t *CommonType) name() string { return t.Name }

// Create and check predefined types
// The string for tBytes is "bytes" not "[]byte" to signify its specialness.

var (
	// Primordial types, needed during initialization.
	// Always passed as pointers so the interface{} type
	// goes through without losing its interfaceness.
	tBool      = bootstrapType("bool", (*bool)(nil))
	tInt       = bootstrapType("int", (*int)(nil))
	tUint      = bootstrapType("uint", (*uint)(nil))
	tFloat     = bootstrapType("float", (*float64)(nil))
	tBytes     = bootstrapType("bytes", (*[]byte)(nil))
	tString    = bootstrapType("string", (*string)(nil))
	tComplex   = bootstrapType("complex", (*complex128)(nil))
	tInterface = bootstrapType("interface", (*any)(nil))
	// Reserve some Ids for compatible expansion
	tReserved7 = bootstrapType("_reserved1", (*struct{ r7 int })(nil))
	tReserved6 = bootstrapType("_reserved1", (*struct{ r6 int })(nil))
	tReserved5 = bootstrapType("_reserved1", (*struct{ r5 int })(nil))
	tReserved4 = bootstrapType("_reserved1", (*struct{ r4 int })(nil))
	tReserved3 = bootstrapType("_reserved1", (*struct{ r3 int })(nil))
	tReserved2 = bootstrapType("_reserved1", (*struct{ r2 int })(nil))
	tReserved1 = bootstrapType("_reserved1", (*struct{ r1 int })(nil))
)

// Predefined because it's needed by the Decoder
var tWireType = mustGetTypeInfo(wireTypeType).id
var wireTypeUserInfo *userTypeInfo // userTypeInfo of wireType

func init() {
	// Some magic numbers to make sure there are no surprises.
	checkId(16, tWireType)
	checkId(17, mustGetTypeInfo(reflect.TypeFor[arrayType]()).id)
	checkId(18, mustGetTypeInfo(reflect.TypeFor[CommonType]()).id)
	checkId(19, mustGetTypeInfo(reflect.TypeFor[sliceType]()).id)
	checkId(20, mustGetTypeInfo(reflect.TypeFor[structType]()).id)
	checkId(21, mustGetTypeInfo(reflect.TypeFor[fieldType]()).id)
	checkId(23, mustGetTypeInfo(reflect.TypeFor[mapType]()).id)

	copy(builtinIdToTypeSlice[:], idToTypeSlice)

	// Move the id space upwards to allow for growth in the predefined world
	// without breaking existing files.
	if nextId := len(idToTypeSlice); nextId > firstUserId {
		panic(fmt.Sprintln("nextId too large:", nextId))
	}
	idToTypeSlice = idToTypeSlice[:firstUserId]
	registerBasics()
	wireTypeUserInfo = userType(wireTypeType)
}

// Array type
type arrayType struct {
	CommonType
	Elem typeId
	Len  int
}

func newArrayType(name string) *arrayType {
	a := &arrayType{CommonType{Name: name}, 0, 0}
	return a
}

func (a *arrayType) init(elem gobType, len int) {
	// Set our type id before evaluating the element's, in case it's our own.
	setTypeId(a)
	a.Elem = elem.id()
	a.Len = len
}

func (a *arrayType) safeString(seen map[typeId]bool) string {
	if seen[a.Id] {
		return a.Name
	}
	seen[a.Id] = true
	return fmt.Sprintf("[%d]%s", a.Len, a.Elem.gobType().safeString(seen))
}

func (a *arrayType) string() string { return a.safeString(make(map[typeId]bool)) }

// GobEncoder type (something that implements the GobEncoder interface)
type gobEncoderType struct {
	CommonType
}

func newGobEncoderType(name string) *gobEncoderType {
	g := &gobEncoderType{CommonType{Name: name}}
	setTypeId(g)
	return g
}

func (g *gobEncoderType) safeString(seen map[typeId]bool) string {
	return g.Name
}

func (g *gobEncoderType) string() string { return g.Name }

// Map type
type mapType struct {
	CommonType
	Key  typeId
	Elem typeId
}

func newMapType(name string) *mapType {
	m := &mapType{CommonType{Name: name}, 0, 0}
	return m
}

func (m *mapType) init(key, elem gobType) {
	// Set our type id before evaluating the element's, in case it's our own.
	setTypeId(m)
	m.Key = key.id()
	m.Elem = elem.id()
}

func (m *mapType) safeString(seen map[typeId]bool) string {
	if seen[m.Id] {
		return m.Name
	}
	seen[m.Id] = true
	key := m.Key.gobType().safeString(seen)
	elem := m.Elem.gobType().safeString(seen)
	return fmt.Sprintf("map[%s]%s", key, elem)
}

func (m *mapType) string() string { return m.safeString(make(map[typeId]bool)) }

// Slice type
type sliceType struct {
	CommonType
	Elem typeId
}

func newSliceType(name string) *sliceType {
	s := &sliceType{CommonType{Name: name}, 0}
	return s
}

func (s *sliceType) init(elem gobType) {
	// Set our type id before evaluating the element's, in case it's our own.
	setTypeId(s)
	// See the comments about ids in newTypeObject. Only slices and
	// structs have mutual recursion.
	if elem.id() == 0 {
		setTypeId(elem)
	}
	s.Elem = elem.id()
}

func (s *sliceType) safeString(seen map[typeId]bool) string {
	if seen[s.Id] {
		return s.Name
	}
	seen[s.Id] = true
	return fmt.Sprintf("[]%s", s.Elem.gobType().safeString(seen))
}

func (s *sliceType) string() string { return s.safeString(make(map[typeId]bool)) }

// Struct type
type fieldType struct {
	Name string
	Id   typeId
}

type structType struct {
	CommonType
	Field []fieldType
}

func (s *structType) safeString(seen map[typeId]bool) string {
	if s == nil {
		return "<nil>"
	}
	if _, ok := seen[s.Id]; ok {
		return s.Name
	}
	seen[s.Id] = true
	str := s.Name + " = struct { "
	for _, f := range s.Field {
		str += fmt.Sprintf("%s %s; ", f.Name, f.Id.gobType().safeString(seen))
	}
	str += "}"
	return str
}

func (s *structType) string() string { return s.safeString(make(map[typeId]bool)) }

func newStructType(name string) *structType {
	s := &structType{CommonType{Name: name}, nil}
	// For historical reasons we set the id here rather than init.
	// See the comment in newTypeObject for details.
	setTypeId(s)
	return s
}

// newTypeObject allocates a gobType for the reflection type rt.
// Unless ut represents a GobEncoder, rt should be the base type
// of ut.
// This is only called from the encoding side. The decoding side
// works through typeIds and userTypeInfos alone.
func newTypeObject(name string, ut *userTypeInfo, rt reflect.Type) (gobType, error) {
	// Does this type implement GobEncoder?
	if ut.externalEnc != 0 {
		return newGobEncoderType(name), nil
	}
	var err error
	var type0, type1 gobType
	defer func() {
		if err != nil {
			delete(types, rt)
		}
	}()
	// Install the top-level type before the subtypes (e.g. struct before
	// fields) so recursive types can be constructed safely.
	switch t := rt; t.Kind() {
	// All basic types are easy: they are predefined.
	case reflect.Bool:
		return tBool.gobType(), nil

	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
		return tInt.gobType(), nil

	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
		return tUint.gobType(), nil

	case reflect.Float32, reflect.Float64:
		return tFloat.gobType(), nil

	case reflect.Complex64, reflect.Complex128:
		return tComplex.gobType(), nil

	case reflect.String:
		return tString.gobType(), nil

	case reflect.Interface:
		return tInterface.gobType(), nil

	case reflect.Array:
		at := newArrayType(name)
		types[rt] = at
		type0, err = getBaseType("", t.Elem())
		if err != nil {
			return nil, err
		}
		// Historical aside:
		// For arrays, maps, and slices, we set the type id after the elements
		// are constructed. This is to retain the order of type id allocation after
		// a fix made to handle recursive types, which changed the order in
		// which types are built. Delaying the setting in this way preserves
		// type ids while allowing recursive types to be described. Structs,
		// done below, were already handling recursion correctly so they
		// assign the top-level id before those of the field.
		at.init(type0, t.Len())
		return at, nil

	case reflect.Map:
		mt := newMapType(name)
		types[rt] = mt
		type0, err = getBaseType("", t.Key())
		if err != nil {
			return nil, err
		}
		type1, err = getBaseType("", t.Elem())
		if err != nil {
			return nil, err
		}
		mt.init(type0, type1)
		return mt, nil

	case reflect.Slice:
		// []byte == []uint8 is a special case
		if t.Elem().Kind() == reflect.Uint8 {
			return tBytes.gobType(), nil
		}
		st := newSliceType(name)
		types[rt] = st
		type0, err = getBaseType(t.Elem().Name(), t.Elem())
		if err != nil {
			return nil, err
		}
		st.init(type0)
		return st, nil

	case reflect.Struct:
		st := newStructType(name)
		types[rt] = st
		idToTypeSlice[st.id()] = st
		for i := 0; i < t.NumField(); i++ {
			f := t.Field(i)
			if !isSent(&f) {
				continue
			}
			typ := userType(f.Type).base
			tname := typ.Name()
			if tname == "" {
				t := userType(f.Type).base
				tname = t.String()
			}
			gt, err := getBaseType(tname, f.Type)
			if err != nil {
				return nil, err
			}
			// Some mutually recursive types can cause us to be here while
			// still defining the element. Fix the element type id here.
			// We could do this more neatly by setting the id at the start of
			// building every type, but that would break binary compatibility.
			if gt.id() == 0 {
				setTypeId(gt)
			}
			st.Field = append(st.Field, fieldType{f.Name, gt.id()})
		}
		return st, nil

	default:
		return nil, errors.New("gob NewTypeObject can't handle type: " + rt.String())
	}
}

// isExported reports whether this is an exported - upper case - name.
func isExported(name string) bool {
	rune, _ := utf8.DecodeRuneInString(name)
	return unicode.IsUpper(rune)
}

// isSent reports whether this struct field is to be transmitted.
// It will be transmitted only if it is exported and not a chan or func field
// or pointer to chan or func.
func isSent(field *reflect.StructField) bool {
	if !isExported(field.Name) {
		return false
	}
	// If the field is a chan or func or pointer thereto, don't send it.
	// That is, treat it like an unexported field.
	typ := field.Type
	for typ.Kind() == reflect.Pointer {
		typ = typ.Elem()
	}
	if typ.Kind() == reflect.Chan || typ.Kind() == reflect.Func {
		return false
	}
	return true
}

// getBaseType returns the Gob type describing the given reflect.Type's base type.
// typeLock must be held.
func getBaseType(name string, rt reflect.Type) (gobType, error) {
	ut := userType(rt)
	return getType(name, ut, ut.base)
}

// getType returns the Gob type describing the given reflect.Type.
// Should be called only when handling GobEncoders/Decoders,
// which may be pointers. All other types are handled through the
// base type, never a pointer.
// typeLock must be held.
func getType(name string, ut *userTypeInfo, rt reflect.Type) (gobType, error) {
	typ, present := types[rt]
	if present {
		return typ, nil
	}
	typ, err := newTypeObject(name, ut, rt)
	if err == nil {
		types[rt] = typ
	}
	return typ, err
}

func checkId(want, got typeId) {
	if want != got {
		fmt.Fprintf(os.Stderr, "checkId: %d should be %d\n", int(got), int(want))
		panic("bootstrap type wrong id: " + got.name() + " " + got.string() + " not " + want.string())
	}
}

// used for building the basic types; called only from init().  the incoming
// interface always refers to a pointer.
func bootstrapType(name string, e any) typeId {
	rt := reflect.TypeOf(e).Elem()
	_, present := types[rt]
	if present {
		panic("bootstrap type already present: " + name + ", " + rt.String())
	}
	typ := &CommonType{Name: name}
	types[rt] = typ
	setTypeId(typ)
	return typ.id()
}

// Representation of the information we send and receive about this type.
// Each value we send is preceded by its type definition: an encoded int.
// However, the very first time we send the value, we first send the pair
// (-id, wireType).
// For bootstrapping purposes, we assume that the recipient knows how
// to decode a wireType; it is exactly the wireType struct here, interpreted
// using the gob rules for sending a structure, except that we assume the
// ids for wireType and structType etc. are known. The relevant pieces
// are built in encode.go's init() function.
// To maintain binary compatibility, if you extend this type, always put
// the new fields last.
type wireType struct {
	ArrayT           *arrayType
	SliceT           *sliceType
	StructT          *structType
	MapT             *mapType
	GobEncoderT      *gobEncoderType
	BinaryMarshalerT *gobEncoderType
	TextMarshalerT   *gobEncoderType
}

func (w *wireType) string() string {
	const unknown = "unknown type"
	if w == nil {
		return unknown
	}
	switch {
	case w.ArrayT != nil:
		return w.ArrayT.Name
	case w.SliceT != nil:
		return w.SliceT.Name
	case w.StructT != nil:
		return w.StructT.Name
	case w.MapT != nil:
		return w.MapT.Name
	case w.GobEncoderT != nil:
		return w.GobEncoderT.Name
	case w.BinaryMarshalerT != nil:
		return w.BinaryMarshalerT.Name
	case w.TextMarshalerT != nil:
		return w.TextMarshalerT.Name
	}
	return unknown
}

type typeInfo struct {
	id      typeId
	encInit sync.Mutex // protects creation of encoder
	encoder atomic.Pointer[encEngine]
	wire    wireType
}

// typeInfoMap is an atomic pointer to map[reflect.Type]*typeInfo.
// It's updated copy-on-write. Readers just do an atomic load
// to get the current version of the map. Writers make a full copy of
// the map and atomically update the pointer to point to the new map.
// Under heavy read contention, this is significantly faster than a map
// protected by a mutex.
var typeInfoMap atomic.Value

// typeInfoMapInit is used instead of typeInfoMap during init time,
// as types are registered sequentially during init and we can save
// the overhead of making map copies.
// It is saved to typeInfoMap and set to nil before init finishes.
var typeInfoMapInit = make(map[reflect.Type]*typeInfo, 16)

func lookupTypeInfo(rt reflect.Type) *typeInfo {
	if m := typeInfoMapInit; m != nil {
		return m[rt]
	}
	m, _ := typeInfoMap.Load().(map[reflect.Type]*typeInfo)
	return m[rt]
}

func getTypeInfo(ut *userTypeInfo) (*typeInfo, error) {
	rt := ut.base
	if ut.externalEnc != 0 {
		// We want the user type, not the base type.
		rt = ut.user
	}
	if info := lookupTypeInfo(rt); info != nil {
		return info, nil
	}
	return buildTypeInfo(ut, rt)
}

// buildTypeInfo constructs the type information for the type
// and stores it in the type info map.
func buildTypeInfo(ut *userTypeInfo, rt reflect.Type) (*typeInfo, error) {
	typeLock.Lock()
	defer typeLock.Unlock()

	if info := lookupTypeInfo(rt); info != nil {
		return info, nil
	}

	gt, err := getBaseType(rt.Name(), rt)
	if err != nil {
		return nil, err
	}
	info := &typeInfo{id: gt.id()}

	if ut.externalEnc != 0 {
		userType, err := getType(rt.Name(), ut, rt)
		if err != nil {
			return nil, err
		}
		gt := userType.id().gobType().(*gobEncoderType)
		switch ut.externalEnc {
		case xGob:
			info.wire.GobEncoderT = gt
		case xBinary:
			info.wire.BinaryMarshalerT = gt
		case xText:
			info.wire.TextMarshalerT = gt
		}
		rt = ut.user
	} else {
		t := info.id.gobType()
		switch typ := rt; typ.Kind() {
		case reflect.Array:
			info.wire.ArrayT = t.(*arrayType)
		case reflect.Map:
			info.wire.MapT = t.(*mapType)
		case reflect.Slice:
			// []byte == []uint8 is a special case handled separately
			if typ.Elem().Kind() != reflect.Uint8 {
				info.wire.SliceT = t.(*sliceType)
			}
		case reflect.Struct:
			info.wire.StructT = t.(*structType)
		}
	}

	if m := typeInfoMapInit; m != nil {
		m[rt] = info
		return info, nil
	}

	// Create new map with old contents plus new entry.
	m, _ := typeInfoMap.Load().(map[reflect.Type]*typeInfo)
	newm := make(map[reflect.Type]*typeInfo, len(m))
	for k, v := range m {
		newm[k] = v
	}
	newm[rt] = info
	typeInfoMap.Store(newm)
	return info, nil
}

// Called only when a panic is acceptable and unexpected.
func mustGetTypeInfo(rt reflect.Type) *typeInfo {
	t, err := getTypeInfo(userType(rt))
	if err != nil {
		panic("getTypeInfo: " + err.Error())
	}
	return t
}

// GobEncoder is the interface describing data that provides its own
// representation for encoding values for transmission to a GobDecoder.
// A type that implements GobEncoder and GobDecoder has complete
// control over the representation of its data and may therefore
// contain things such as private fields, channels, and functions,
// which are not usually transmissible in gob streams.
//
// Note: Since gobs can be stored permanently, it is good design
// to guarantee the encoding used by a GobEncoder is stable as the
// software evolves. For instance, it might make sense for GobEncode
// to include a version number in the encoding.
type GobEncoder interface {
	// GobEncode returns a byte slice representing the encoding of the
	// receiver for transmission to a GobDecoder, usually of the same
	// concrete type.
	GobEncode() ([]byte, error)
}

// GobDecoder is the interface describing data that provides its own
// routine for decoding transmitted values sent by a GobEncoder.
type GobDecoder interface {
	// GobDecode overwrites the receiver, which must be a pointer,
	// with the value represented by the byte slice, which was written
	// by GobEncode, usually for the same concrete type.
	GobDecode([]byte) error
}

var (
	nameToConcreteType sync.Map // map[string]reflect.Type
	concreteTypeToName sync.Map // map[reflect.Type]string
)

// RegisterName is like [Register] but uses the provided name rather than the
// type's default.
func RegisterName(name string, value any) {
	if name == "" {
		// reserved for nil
		panic("attempt to register empty name")
	}

	ut := userType(reflect.TypeOf(value))

	// Check for incompatible duplicates. The name must refer to the
	// same user type, and vice versa.

	// Store the name and type provided by the user....
	if t, dup := nameToConcreteType.LoadOrStore(name, reflect.TypeOf(value)); dup && t != ut.user {
		panic(fmt.Sprintf("gob: registering duplicate types for %q: %s != %s", name, t, ut.user))
	}

	// but the flattened type in the type table, since that's what decode needs.
	if n, dup := concreteTypeToName.LoadOrStore(ut.base, name); dup && n != name {
		nameToConcreteType.Delete(name)
		panic(fmt.Sprintf("gob: registering duplicate names for %s: %q != %q", ut.user, n, name))
	}
}

// Register records a type, identified by a value for that type, under its
// internal type name. That name will identify the concrete type of a value
// sent or received as an interface variable. Only types that will be
// transferred as implementations of interface values need to be registered.
// Expecting to be used only during initialization, it panics if the mapping
// between types and names is not a bijection.
func Register(value any) {
	// Default to printed representation for unnamed types
	rt := reflect.TypeOf(value)
	name := rt.String()

	// But for named types (or pointers to them), qualify with import path (but see inner comment).
	// Dereference one pointer looking for a named type.
	star := ""
	if rt.Name() == "" {
		if pt := rt; pt.Kind() == reflect.Pointer {
			star = "*"
			// NOTE: The following line should be rt = pt.Elem() to implement
			// what the comment above claims, but fixing it would break compatibility
			// with existing gobs.
			//
			// Given package p imported as "full/p" with these definitions:
			//     package p
			//     type T1 struct { ... }
			// this table shows the intended and actual strings used by gob to
			// name the types:
			//
			// Type      Correct string     Actual string
			//
			// T1        full/p.T1          full/p.T1
			// *T1       *full/p.T1         *p.T1
			//
			// The missing full path cannot be fixed without breaking existing gob decoders.
			rt = pt
		}
	}
	if rt.Name() != "" {
		if rt.PkgPath() == "" {
			name = star + rt.Name()
		} else {
			name = star + rt.PkgPath() + "." + rt.Name()
		}
	}

	RegisterName(name, value)
}

func registerBasics() {
	Register(int(0))
	Register(int8(0))
	Register(int16(0))
	Register(int32(0))
	Register(int64(0))
	Register(uint(0))
	Register(uint8(0))
	Register(uint16(0))
	Register(uint32(0))
	Register(uint64(0))
	Register(float32(0))
	Register(float64(0))
	Register(complex64(0i))
	Register(complex128(0i))
	Register(uintptr(0))
	Register(false)
	Register("")
	Register([]byte(nil))
	Register([]int(nil))
	Register([]int8(nil))
	Register([]int16(nil))
	Register([]int32(nil))
	Register([]int64(nil))
	Register([]uint(nil))
	Register([]uint8(nil))
	Register([]uint16(nil))
	Register([]uint32(nil))
	Register([]uint64(nil))
	Register([]float32(nil))
	Register([]float64(nil))
	Register([]complex64(nil))
	Register([]complex128(nil))
	Register([]uintptr(nil))
	Register([]bool(nil))
	Register([]string(nil))
}

func init() {
	typeInfoMap.Store(typeInfoMapInit)
	typeInfoMapInit = nil
}

Youez - 2016 - github.com/yon3zu
LinuXploit