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// file : odb/relational/common.txx
// copyright : Copyright (c) 2009-2015 Code Synthesis Tools CC
// license : GNU GPL v3; see accompanying LICENSE file
namespace relational
{
//
// member_base_impl
//
template <typename T>
void member_base_impl<T>::
traverse (semantics::data_member& m)
{
if (transient (m))
return;
string var;
if (!var_override_.empty ())
var = var_override_;
else
{
string const& name (m.name ());
var = name + (name[name.size () - 1] == '_' ? "" : "_");
}
bool cq (type_override_ != 0 ? false : const_type (m.type ()));
semantics::type& t (type_override_ != 0 ? *type_override_ : utype (m));
semantics::type* cont;
if (semantics::class_* c = object_pointer (t))
{
// A pointer in view might point to an object without id.
//
semantics::data_member* idm (id_member (*c));
semantics::type& t (utype (idm != 0 ? *idm : m));
semantics::class_* comp (idm != 0 ? composite_wrapper (t) : 0);
member_info mi (m,
(comp != 0 ? *comp : t),
(comp != 0 && wrapper (t) ? &t : 0),
cq,
var,
fq_type_override_); // Pointer type.
mi.ptr = c;
// Pointer in views aren't really a "column".
//
if (!view_member (m) && comp == 0)
mi.st = &member_sql_type (m);
if (pre (mi))
{
traverse_pointer (mi);
post (mi);
}
}
else if (semantics::class_* c = composite_wrapper (t))
{
// If t is a wrapper, pass the wrapped type. Also pass the
// original, wrapper type.
//
member_info mi (m,
*c,
(wrapper (t) ? &t : 0),
cq,
var,
fq_type_override_);
if (pre (mi))
{
traverse_composite (mi);
post (mi);
}
}
// This cannot be a container if we have a type override.
//
else if (type_override_ == 0 && (cont = context::container (m)))
{
// The same unwrapping logic as for composite values.
//
member_info mi (m,
*cont,
(wrapper (t) ? &t : 0),
cq,
var,
fq_type_override_);
if (pre (mi))
{
traverse_container (mi);
post (mi);
}
}
else
{
member_info mi (m, t, 0, cq, var, fq_type_override_);
mi.st = &member_sql_type (m);
if (pre (mi))
{
traverse_simple (mi);
post (mi);
}
}
}
template <typename T>
void member_base_impl<T>::
traverse_pointer (member_info& mi)
{
if (!view_member (mi.m)) // Not really "as if" pointed-to id member.
{
if (composite (mi.t)) // Already unwrapped.
traverse_composite (mi);
else
traverse_simple (mi);
}
}
}
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