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Added setattr(), and the ability to query the class registry to see if a class has already been created

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[SVN r13842]
This commit is contained in:
Dave Abrahams
2002-05-13 16:40:34 +00:00
parent 56abd7ba70
commit 6c20af07f7
1 changed files with 24 additions and 7 deletions
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31
src/object/class.cpp
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@@ -197,6 +197,7 @@ namespace
{
public:
ref get(class_id id) const;
ref query(class_id id) const;
void set(class_id, ref class_object);
private:
typedef detail::map_entry<class_id,ref> entry;
@@ -209,7 +210,7 @@ namespace
return x;
}
ref class_registry::get(class_id id) const
inline ref class_registry::query(class_id id) const
{
std::vector<entry>::const_iterator start = m_impl.begin();
std::vector<entry>::const_iterator finish = m_impl.end();
@@ -217,17 +218,24 @@ namespace
std::vector<entry>::const_iterator p
= boost::detail::lower_bound(start, finish, id);
if (p == finish || p->key != id)
return (p == finish || p->key != id) ? ref() : p->value;
}
inline ref class_registry::get(class_id id) const
{
ref result(this->query(id));
if (result.get() == 0)
{
string report("extension class wrapper for base class ");
(report += id.name()) += " has not been created yet";
PyErr_SetObject(PyExc_RuntimeError, report.get());
throw_error_already_set();
}
return p->value;
return result;
}
void class_registry::set(class_id id, ref object)
inline void class_registry::set(class_id id, ref object)
{
std::vector<entry>::iterator start = m_impl.begin();
std::vector<entry>::iterator finish = m_impl.end();
@@ -272,15 +280,24 @@ extern "C"
void class_base::add_property(char const* name, ref const& fget)
{
ref property(PyObject_CallFunction((PyObject*)&PyProperty_Type, "O", fget.get()));
if (PyObject_SetAttrString(object().get(), const_cast<char*>(name), property.get()) < 0)
throw_error_already_set();
setattr(name, property);
}
void class_base::add_property(char const* name, ref const& fget, ref const& fset)
{
ref property(PyObject_CallFunction((PyObject*)&PyProperty_Type, "OO", fget.get(), fset.get()));
if (PyObject_SetAttrString(object().get(), const_cast<char*>(name), property.get()) < 0)
setattr(name, property);
}
void class_base::setattr(char const* name, ref const& x)
{
if (PyObject_SetAttrString(object().get(), const_cast<char*>(name), x.get()) < 0)
throw_error_already_set();
}
BOOST_PYTHON_DECL ref registered_class_object(class_id id)
{
return registry().query(id);
}
}}} // namespace boost::python::objects