Bug: protobject seems deprecated (and can't compile)

[dumblob]

The protobject module seems deprecated and unmaintained. It also can't compile:

cc -O2 -DDAO_WITH_NUMARRAY -DDAO_WITH_THREAD -DDAO_WITH_CONCURRENT -DDAO_WITH_RESTART -DTARGET_PLAT=\"linux\" -DLINUX=2 -DUNIX=1 -I../../kernel/ -I../auxlib/ -I. -fPIC  -c dao_protobject.c -o DaoMake.Objs/dao_protobject.c.75B9.o
dao_protobject.c:121:8: error: unknown type name ‘DaoFuncItem’
 static DaoFuncItem protobjectMeths[]=
        ^~~~~~~~~~~
dao_protobject.c:123:2: warning: braces around scalar initializer
  { PROTOBJ_New,       "Protobject()=>Protobject" },
  ^
dao_protobject.c:123:2: note: (near initialization for ‘protobjectMeths[0]’)
dao_protobject.c:123:4: warning: initialization makes integer from pointer without a cast [-Wint-conversion]
  { PROTOBJ_New,       "Protobject()=>Protobject" },
    ^~~~~~~~~~~
dao_protobject.c:123:4: note: (near initialization for ‘protobjectMeths[0]’)
dao_protobject.c:123:4: error: initializer element is not computable at load time
dao_protobject.c:123:4: note: (near initialization for ‘protobjectMeths[0]’)
dao_protobject.c:123:23: warning: excess elements in scalar initializer
  { PROTOBJ_New,       "Protobject()=>Protobject" },
                       ^~~~~~~~~~~~~~~~~~~~~~~~~~
dao_protobject.c:123:23: note: (near initialization for ‘protobjectMeths[0]’)
dao_protobject.c:125:2: warning: braces around scalar initializer
  { PROTOBJ_GetProto,  ".__proto__( self :Protobject ) => Protobject|none" },
  ^
dao_protobject.c:125:2: note: (near initialization for ‘protobjectMeths[1]’)
dao_protobject.c:125:4: warning: initialization makes integer from pointer without a cast [-Wint-conversion]
  { PROTOBJ_GetProto,  ".__proto__( self :Protobject ) => Protobject|none" },
    ^~~~~~~~~~~~~~~~
dao_protobject.c:125:4: note: (near initialization for ‘protobjectMeths[1]’)
dao_protobject.c:125:4: error: initializer element is not computable at load time
dao_protobject.c:125:4: note: (near initialization for ‘protobjectMeths[1]’)
dao_protobject.c:125:23: warning: excess elements in scalar initializer
  { PROTOBJ_GetProto,  ".__proto__( self :Protobject ) => Protobject|none" },
                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
dao_protobject.c:125:23: note: (near initialization for ‘protobjectMeths[1]’)
dao_protobject.c:126:2: warning: braces around scalar initializer
  { PROTOBJ_SetProto,  ".__proto__=( self :Protobject, proto :Protobject|none )" },
  ^
dao_protobject.c:126:2: note: (near initialization for ‘protobjectMeths[2]’)
dao_protobject.c:126:4: warning: initialization makes integer from pointer without a cast [-Wint-conversion]
  { PROTOBJ_SetProto,  ".__proto__=( self :Protobject, proto :Protobject|none )" },
    ^~~~~~~~~~~~~~~~
dao_protobject.c:126:4: note: (near initialization for ‘protobjectMeths[2]’)
dao_protobject.c:126:4: error: initializer element is not computable at load time
dao_protobject.c:126:4: note: (near initialization for ‘protobjectMeths[2]’)
dao_protobject.c:126:23: warning: excess elements in scalar initializer
  { PROTOBJ_SetProto,  ".__proto__=( self :Protobject, proto :Protobject|none ) },
                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
dao_protobject.c:126:23: note: (near initialization for ‘protobjectMeths[2]’)
dao_protobject.c:128:2: warning: braces around scalar initializer
  { PROTOBJ_GetField,  ".( self :Protobject, field :string ) => any" },
  ^
dao_protobject.c:128:2: note: (near initialization for ‘protobjectMeths[3]’)
dao_protobject.c:128:4: warning: initialization makes integer from pointer without a cast [-Wint-conversion]
  { PROTOBJ_GetField,  ".( self :Protobject, field :string ) => any" },
    ^~~~~~~~~~~~~~~~
dao_protobject.c:128:4: note: (near initialization for ‘protobjectMeths[3]’)
dao_protobject.c:128:4: error: initializer element is not computable at load time
dao_protobject.c:128:4: note: (near initialization for ‘protobjectMeths[3]’)
dao_protobject.c:128:23: warning: excess elements in scalar initializer
  { PROTOBJ_GetField,  ".( self :Protobject, field :string ) => any" },
                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
dao_protobject.c:128:23: note: (near initialization for ‘protobjectMeths[3]’)
dao_protobject.c:129:2: warning: braces around scalar initializer
  { PROTOBJ_SetField,  ".=( self :Protobject, field :string, value :any )" },
  ^
dao_protobject.c:129:2: note: (near initialization for ‘protobjectMeths[4]’)
dao_protobject.c:129:4: warning: initialization makes integer from pointer without a cast [-Wint-conversion]
  { PROTOBJ_SetField,  ".=( self :Protobject, field :string, value :any )" },
    ^~~~~~~~~~~~~~~~
dao_protobject.c:129:4: note: (near initialization for ‘protobjectMeths[4]’)
dao_protobject.c:129:4: error: initializer element is not computable at load time
dao_protobject.c:129:4: note: (near initialization for ‘protobjectMeths[4]’)
dao_protobject.c:129:23: warning: excess elements in scalar initializer
  { PROTOBJ_SetField,  ".=( self :Protobject, field :string, value :any )" },
                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
dao_protobject.c:129:23: note: (near initialization for ‘protobjectMeths[4]’)
dao_protobject.c:131:2: warning: braces around scalar initializer
  { NULL, NULL },
  ^
dao_protobject.c:131:2: note: (near initialization for ‘protobjectMeths[5]’)
dao_protobject.c:131:4: warning: initialization makes integer from pointer without a cast [-Wint-conversion]
  { NULL, NULL },
    ^~~~
dao_protobject.c:131:4: note: (near initialization for ‘protobjectMeths[5]’)
dao_protobject.c:142:1: error: unknown type name ‘DaoTypeBase’
 DaoTypeBase protobjectTyper =
 ^~~~~~~~~~~
dao_protobject.c:144:2: warning: initialization makes integer from pointer without a cast [-Wint-conversion]
  "Protobject", NULL, NULL, (DaoFuncItem*) protobjectMeths, {0}, {0},
  ^~~~~~~~~~~~
dao_protobject.c:144:2: note: (near initialization for ‘protobjectTyper’)
dao_protobject.c:144:2: error: initializer element is not computable at load time
dao_protobject.c:144:2: note: (near initialization for ‘protobjectTyper’)
dao_protobject.c:144:29: error: ‘DaoFuncItem’ undeclared here (not in a function)
  "Protobject", NULL, NULL, (DaoFuncItem*) protobjectMeths, {0}, {0},
                             ^~~~~~~~~~~
dao_protobject.c:144:41: error: expected expression before ‘)’ token
  "Protobject", NULL, NULL, (DaoFuncItem*) protobjectMeths, {0}, {0},
                                         ^
dao_protobject.c:144:40: error: invalid operands to binary * (have ‘int *’ and int *’)
  "Protobject", NULL, NULL, (DaoFuncItem*) protobjectMeths, {0}, {0},
                             ~~~~~~~~~~~^
dao_protobject.c:144:28: warning: excess elements in scalar initializer
  "Protobject", NULL, NULL, (DaoFuncItem*) protobjectMeths, {0}, {0},
                            ^
dao_protobject.c:144:28: note: (near initialization for ‘protobjectTyper’)
dao_protobject.c: In function ‘DaoProtobject_OnLoad’:
dao_protobject.c:151:52: warning: passing argument 2 of ‘DaoNamespace_WrapType’ from incompatible pointer type [-Wincompatible-pointer-types]
  daox_type_protobject = DaoNamespace_WrapType( ns, & protobjectTyper, DAO_CSTRUCT, 0 );
                                                    ^
In file included from ../../kernel/daoBase.h:34:0,
                 from ../../kernel/daoType.h:32,
                 from ../../kernel/daoValue.h:32,
                 from dao_protobject.c:31:
../../kernel/dao.h:1132:18: note: expected ‘DaoTypeCore * {aka struct DaoTypeCore *}’ but argument is of type ‘int *’
 DAO_DLL DaoType* DaoNamespace_WrapType( DaoNamespace *self, DaoTypeCore *core, int tid, int options );
                  ^~~~~~~~~~~~~~~~~~~~~

It seems useful (e.g. for mocking and unit testing), so we should either update it to the latest Dao or abandon it completely and remove it from this repository.